The new style composite foundation is composed of the concrete-cored sand-gravel pile, the soil between piles and the cushion. According the work condition under the embankment, and considering the annular drainage section of sand-gravel columns composite foundation, the control equation and analytical...

The project was a shallow buried large-span highway tunnel, by means of synthetic geological prediction method before the construction of the advanced geological forecast was an effective measures to ensure the safety of tunnel construction. Based on geological exploration, used high density electrical...

Determining surrounding rock loose circle of plastic surrounding rock stability evaluation was critical parameters for the rational, economic support designed to provide an effective basis. In this paper, relying on field engineering, integrated embeddedsurrounding rock pressure monitoring and deformation...

In this paper, different proportion of activated carbon was added to the Rehmannia glutinosa continuous cropping soils including first and second stubble to adjust the phenolic acids content and microbial biomass and improve the soil environment after continuous cropping. Results showed that vanillic...

In this paper, different proportion of wormcast was added to the Rehmannia glutinosa continuous cropping soils including first and second stubble to adjust the phenolic acids content and microbial biomass and improve the soil environment after continuous cropping. Results showed that vanillic acid, vanillin...

There are a large number of transitional rocks (silty mudstone and muddy silty sand) in the Fuyu reservoir, which affect the seismic characteristics and reduce the reservoir prediction accuracy. The lithology P-wave impedance log can be created by the well log interpretation result. The lithology P-wave...

Liquefaction of low rank coal such as long flame coal by microorganisms is one of the most potential ways in coal clean utilization. To promote industrialized application, this paper focuses on structure of liquefaction product by infrared spectrometer. After that, software Peakfit v4.12 was used to...

Starting from the existing evaluation system of asphalt pavement, single evaluation index and the comprehensive evaluation index are evaluated respectively. Based on engineering examples, this paper puts forward that the weighted geometric mean generation is to optimize the existing weighted arithmetic...

The unsteady loading(dipole source) on the blade surface was calculated by a potential-based surface panel method. Then the time-dependent pressure data were used as the input for Ffowcs Williams–Hawkings formulation to predict the acoustics pressure. The blade frequency noise of submarine propeller...

This study utilizes and sinters the reservoir sediment to produce high-quality lightweight aggregates. Not only does the recycling of reservoir sediment into useful building material save resources, but it also increases the reservoir capacity, prolongs reservoir life, and is more conducive to environmental...

Based on the freeze-thawing cycle characteristic of road concrete in cold climatic condition. The objective of this paper was to estimate the practicality of using fly ash discharged from a coal fuel electric plant in Inner Mongolia in concrete pavements. The abrasion resistance of road concrete containing...

With the development of local economy, the increase of urban population and the poor infrastructure in old urban area can’t meet the development of the modern city. Small and medium-sized city traffic problems have gradually become the negative factors which hinder and restrict the city social economy...

The Jingjiang River is the reach of Yangtze River just downside of the Three Gorges Reservoir (TGR), and most oftenly threatened by the flood. In this reach the natural flood normally routed as kinematic wave, but since TGR put into operation the outflow can be changed dramatically once the controlling...

Asphalt pavement is the main pavement pattern in China. There have been a serious of achievements over the past decades in mechanics theory and damage mechanism of asphalt pavement. Based on the above two aspects in asphalt pavement design, this paper provides a detailed overview of the application of...

In order to study the changing regularity of rubber particles impact on self-compacting concrete deformation performance, with SCC30 strength of self-compacting concrete as the base, with different amount of rubber particles volume instead of fine aggregate in self-compacting concrete sample, preparation...

A model for network vulnerability evaluation based on cumulative prospect theory is proposed for more accurate evaluation of the effects of travelers’ behavioral responses on road network vulnerability caused by link closure. In the proposed model, the effects of both demand variations and travelers’...

Comprehensive budget management is refers to the use of budget of enterprise internal departments and units involved a variety of financial and non-financial resources allocation, assessment, control, easy and effective for the production and operation activities of the enterprise organization and coordination,...

As the wetland ecosystem in the field of research is insufficient, this paper established Effect Evaluation Index System of comprehensive development level of wetlands based on their ecosystem functions and performance characteristics. The entropy method was used to determine the index weight, the set...

This paper discusses the mechanical stability of rock slope with 3D geonet protection system.A damaged 3D geomat slope model under seismic load and seepage condition is established. The paper studies the effect of rainwater infiltration and seismic load to the stability of 3D geomat slope surface in...

In order to get parameter properties of rock mass, a series of representative unloading tests are carried on hard granite moonstone for that it is indispensable to get mechanical parameters and strength parameters for numerical simulation. In the unloading tests, the stress path of decreasing confining...

Finite element model is presented by using software ABAQUS and used to carry out heat transfer analysis for tubular joints, and its reliability has been verified through comparison with reported experimental tests. Using transient and steady heat transfer theory, the critical temperatures of tubular...

This study presents a new rectangular hollow flange beam (NRHFB). In this new beam, the top flange is designed to be rectangular hollow section. Considering a thin-wall hollow section flange is much weaker in resisting concentrated load, the web is penetrating through the tubular flange to sustain local...

This study is to investigate the strength properties of cement-based composites with circulated fluidized bed combustion (CFBC) fly ash and coal-fired fly ash. Ten different blended cements were prepared to cast mortar specimens. The compressive strength, tensile strength, and flexural strength were...

The damage degree of the rock and its strain has the nature relation, this paper choose the granite which is most common rock in the engineering practice as the research object. It carried on more categories of impact test research about granite specimen of length to diameter ratio is 0.8 times in using...

Floatation tanks are usually designed in gravity jacket, which can provide enough floatation and make sure the accurate location of jackets during offshore installation of gravity jacket. Floatation tanks have the following characteristic: major diameter, thin thickness and there are large of internal...

According to subjective deviation and variation characteristics in fuzzy decision-making, one fuzzy reasoning method is put forward on the environment hazard for earthquake-damaged underground structure with the integration of entropy and variation weight distribution. Through identifying such index...

Our country is a place where earthquake frequently happens and where seismic area is widely distributed. With the progress of science and technology, the use of computers and so on, from home and abroad we have achieved great development for the research and application of shock absorption and isolation...

Commodity and information interaction between regions are becoming more and more intense. The data of origin-destination flow (OD flow) is the observation of the interaction between paired regions. Each observed value of OD flow is related to an original point and a destination point in space, which...

The Yangtze River, the longest river in China, is also a famous river in the world. Most regions within its drainage basin are of moderate climate, abundant rainfall, rich resources and dense population, in the meantime, the Yangtze River basin is also a region in which floods frequently happens. In...

Blasting compacting method for filling stone in dealing with deep silt and soft foundation, has prominent features of quick construction, low cost and excellent effect, etc.. This paper, focuses on paddy rice transfer program in China Grains & Logistics Group North Grain Co. Limited and takes hydraulic...

this paper mainly introduces the harm of road and bridge pavement and subgrade settlement,expounds the causes of uneven pavement and subgrade settlement on the settlement road and bridge,analyzes the structure design of settlement road and bridge and finally discusses the construction technology for...

The local interface formulation for nonlinear dynamic analysis of large structures is presented using domain decomposition and preconditioned conjugate gradient (PCG) technique. In the formulation, the PCG algorithm is formulated using the unassembled local Schur complement matrices of subdomains. Incomplete...

Earth pressure is usually measured by the earth pressure cell. Calibration parameters from the manufacturer is often obtained conducting calibration in the gas or liquid systematically with a set of pressure, which can not be used in soil test directly. Therefore, in order to find out a well-matched...

This article presents a comparison between two code methods of piezocone penetration test (CPTU) and laboratory test in identifying soil stratigraphy in Shanghai. In China, stratigraphy for soft deposit is mainly obtained through the traditional code method, in which plasticity index and grain size distribution...

In Vietnam, now many hydropower project adopts the EPC (engineering, procurement and construction) of the contract. However, in the implementation of these hydropower projects, the EPC general contractors are facing many difficulties, resulting in schedule delays and considerable losses . From the above...

According to the data of 107 National Highway Luogang section of Guangdong vehicle load survey, By using theory of probability and statistics, the parameters such as gross vehicle weight, axle load, wheelbase, vehicle spacing and so on, are statistically analysed in this paper so as to confirm the probability...

A new load out method with self-propelled modular transporter for jacket of offshore platform is introduced. The requirement of route selection, method axle force check, driving force check, stability check, friction force check and temporary structure design related to SPMT part during load out are...

This paper presents test results of mechanical behavior, failure pattern and energy rate of full-scale flat-plate floor subjected to fire. The experimental results show that crack patterns on top surface of the flat-plate floor under fire consistent with those at ambient temperature. The experimental...

In order to reflect the randomness and uncertainty of geomaterials, it is essential to study the probability model of geotechnical parameters. Based on normal information diffusion principle, a probability model deduction method for geotechnical parameters was presented in this paper. Taken a set of...

The ecological tea garden landscape design has not formed a relatively integrated theoretical system, our common form of tea garden is tea-picking garden, science and technology demonstration tea garden and multiple integrated tea garden. Taking Conghua district landscape yellow tea garden for example,...

With the city's high-rise buildings have sprung up, deep foundation pit project is also more and more, more and more deep, nature of the underground soil, load conditions, the construction environment of complexity, simple based on the geological survey data and laboratory soil test parameters to determine...

The measured settlement curves of high-speed railway are presented with the characteristic of "small scale, large fluctuations", which is difficult to reach the requirements of curve regression coefficient with 0.92 on specification. This was done by adopting the method of mathematical simulation and...

The location of distribution centers and routing of relief delivery in the available transportation network are two of the most challenging issues in emergency logistics after disasters. This paper presents a stochastic mixed-integer program model that integrates fuzzy demands, time windows, and damage...

In this paper, iron tailings and cement are used as the basic raw materials. Through studying strength and dry density, we explore the feasibility of preparation of foam concrete using iron tailings.

One of the mechanical key problems on concrete-filled steel tube (CFT) structure is the confining effect between the steel tube and the core concrete. The key technology to solve the problem is to accurately describe the interfacial mechanics properties. Based on continuum mechanics theory, by means...

Guangzhou Pearl River New City J2-5 project east faces Xian Cun Road, south close to the Ritz Carlton Hotel, west close to Guangzhou East Tower, and north close to Global Metroplaza. It uses BIM technology to deepen its work for the construction drawings and construction program to previously find and...

To study on the chemical effects on Nanning expansive soils the lime, cement and fly ash were utilized as modifier to treat three different kinds of expansive soil. The fundamental engineering properties of expansive soil were analyzed to evaluate the improved effects and adaptability. The results indicate...

In order to study the flexural performance of high strength reinforced concrete beam, through the loading test of six groups of specimens, investigate its force deformation characteristic. Test shows that the high-strength steel has very notable significance to improve the bearing capacity of the beam....

This article based on the basic theory of the formation mechanism of housing price, it introduced the fluctuations of commercial housing price in our country these years. Then by using the supply and demand theory, it analyzed the process of the commercial housing price formation mechanism and the main...

Due to poor performance of supply chain members the paper has been studied supply chain contracts based on newsboy model without option and centralized decision-making model. This research paper presents how to coordinate the supply chain in two-level of supply chain. All the numerical part analysis...

Based on the steady state heat and moisture transfer theory, according to the characteristics of climate in sever cold area; they analyzed the heat and moisture state of brick and paint decoration wall of residential buildings in Shenyang area. The main reason for its failure is that the brick wall dampness...

In previous research, the drought evaluation index did not consider the influence of groundwater resources. This study select the standard water resources index (SWRI), and put the impacts of surface water resources, soil water resources and groundwater resources together into SWRI. A regional drought...

In this paper, based on the traditional Bayesian risk, aiming at the empirical Bayesian estimation of the double exponential distribution’s scale parameter, through an improved inequality about the LINEX loss function, we reduce the order of the convergence speed of the parameter in Bayesian estimation...

A signal timing optimization approach of phase combination on PSO (particle swarm optimization) is proposed in the paper. The objective function is to minimize the number of stops at intersection by combining the less different flow ratio of two streams into a team. The method is applied at the intersection...

In the general simulation system of navigation, the real-time capability of traditional signal source is not strong, and the unity problem of navigation terminal remains. To solve the problem, the new navigation system is constructed which includes GPS/BDS navigation receiver, signal simulation software...

High speed railway must strictly control the settlement deformation. It has important significance to explore reasonable methods of noise reduction for the settlement curve, in order to improve the reliability of settlement prediction. Wavelet analysis is feasible to denoise the observation data. The...

Development of hydraulic power energy with low water head is an effective supplementation for the traditional development of hydraulic power energy. How to effectively utilize the hydraulic power energy with low water head in nature is a problem now and the gas-liquid energy conversion efficiency is...

At present, Web technology has fully applied in all walks of life. As a revolutionary development of technology, it will bring immeasurable influence if it is applied to construction project team. Therefore, the use of Web technology for the construction project team knowledge service is imperative....

With characteristics of small volume, low cost and high reliability, MEMS inertial sensors are developing into one of the mainstream sensors in inertial navigation system, and its output precision has a great effect on the overall system precision. In this paper, the random error of inertial sensors...

The aging stability theory of creep aims to describe simultaneously the steady-state creep and accelerated creep of rock and soil by coupling Kelvin model and Saito model. In the project of Mount Niu-shou tourist district, several landslides have been successfully predicted and forecasted by fitting...

A novel method is established to analyze the dike slope failure mechanism research in this paper. First of all, it improves a serial of operations, and boundary conditions for the genetic algorithm, such as the crossover operation, mutation operation, the operation and the convergence condition, then...

Sand liquefaction is a common seismic hazard of foundation. In order to investigate the hazard evaluation criteria of liquefaction of sand soil foundation, a research was made to study different methods of discriminating sand liquefaction with the reference of the results of recent related studies in...

At present, there exist some problems of energy conservation and emissions reduction in tunnel and underground engineering construction. During the operation period the current situation of the energy conservation and emissions reduction in tunnel and all kind of underground space can not be ignored....

A Hybrid finite-discrete element Method is introduced to simulate fracture and fragmentation processes of Brazilian disc test. The transition from continuum to discontinuum through fracture and fragmentation is implemented through a combined single and smeared crack model. An integrated development environment...

There is less research on the accordance relationship between AE characteristics and failure process including the starting time and duration of failure of brittle rock. The different brittleness rock-like samples made of rosin and grout mortar have been researched by the uniaxial compression test and...

In order to study the influence of purline stiffness in portal frame on the stability performance of portal frame, this paper establishes the finite element model of portal frame-purline-knee bracing system and conducts buckling analysis and ultimate bearing analysis of the system by use of ANSYS finite...

Soil moisture and nutrients are different under different water and fertilizer conditions, which will affect crop growth and yield. In this study, water consumption, growth index, yield under different treatments were measured and analyzed in order to investigate the effect of coupling of water and fertilizer...

Carbonization is one of the main factors affecting the durability of concrete structures in atmospheric environment. According to the theory of reliability and the climate forecast data, using the concrete carbonation prediction model improved, the time-dependent reliability of concrete structures were...

Brake temperature rise has a significant impact on the braking performance of the vehicle, especially when the vehicle in the long downhill road, and the driver of the vehicle brake operating temperature is particularly necessary to master. Inverse heat conduction problem solving was based on the thermal...

With increasing business management projects, managers find incongruities between organization as a whole and individual project which influence the achievement of overall business goals. Objectively, multiple projects of business management need to be clustered into programme for management in accordance...

Dyeing wastewater complex composition, color large organic pollutant concentration is very high, in the field of wastewater treatment is a kind of low biodegradability, biodegradation of industrial wastewater. Based on extensive research, printing and dyeing wastewater treatment method commonly used...

Pumping station flow channel is an important part of water pumping station, and plays an important role in the running process. The construction of the pumping station flow channel currently mainly depends on the pre-assembled wooden model, and the construction quality cannot be effectively assessed....

A parameters optimization model (POM) of stagger-luminaire-distribution (SLD) lighting for tunnel interior zone was established to acquire the most energy-saving luminaire installation parameters (LIPs) of highway tunnel interior zone, with luminaire installation height, longitudinal installation spacing,...

Empty, segregation etc are the common internal defects of concrete slab, positioning the inner defects of slab is the basic requirement of the engineering detection and repair, in this study, the internal detects of concrete slab were studied based on the principle of impact echo method. Different forms...

Taking Taoping Qiang Dwellings in Li County, Aba Prefecture of Northwestern Sichuan as case, this paper analyzed low ecological technology strategy applied by Qiang Dwellings in Northwestern Sichuan for coping with alpine region, including regional environment strategy, architectural technology mode....

This study is based on an actual preloading project of permafrost region in Dalian, China. In order to obtain the testing results and reflect the reinforcement effect of this project, there are some preparations that are needed to be carried out, such as field monitoring, data analysis and so on. According...

This article is on the basis of an actual preloading project of permafrost region in Dalian, China. The deformation characteristics of preloading project in permafrost area can be found by the following steps: Initially, do some surveys about the geological characteristics of this project. Then, lay...

This paper studies optimization of train diagram with different speed of high-speed railways, and introduces soft time window to construct the optimization model of train diagram, aiming at minimizing the difference between the arrival and departure time of the trains and the expectation of passengers...

The project is a reinforced concrete frame construction office building, which contains 5 floors. Each floor's height is 3.6 meters . The whole elevation is 19.6 meters. In this area, the intensity of earthquake resistance is 7. The basic wind pressure is 0.75 kN/m2.The location type of the constructs...

Controlling construction speed is a key factor to ensure the stability of dam slope in soft groundsill. In this paper, for the construction of soft groundsill damming in Shuangwangcheng reservoir, a dynamic monitoring method of soft groundsill damming, considering the excess hydrostatic pore water pressure...

As metro and urban light railway transit projects are rapidly launched in China, land exploitation projects along the railway are increasing too, and lots of new buildings’ deep foundation pit work are located around metro station and tunnel protection sphere, the metro station will inevitably be influenced...

As metro and urban light railway transit projects are rapidly launched in China, land exploitation project along the railway are increasing too, and lots of new buildings’ deep foundation pit work are located around metro station and tunnel projection sphere the metro station will inevitably be influenced...

During the monitoring of bridge health, traditional method of information transmission based on paper mediums can easily cause omissions, delays and errors, and make the information management become burdensome, complex and inefficient. Building Information Modeling (BIM) is a technology which integrates...

When the pipeline bursts and leaks, the make-up pumps will turn on to supple the network with water. Due to the outdoor heating network is a closed cycle, and equipped with the make-up water pumps, the hot water will leak continually under a constant pressure at the leak point, which causes thermal waste....

Paths searching is a significant work for urban rail transit network. Because of various time weights included in nodes on this network, the traditional Dijkstra’s algorithm fails to find the shortest paths. In order to still use this traditional algorithm, the general approach is to expand this network,...

The shortage of foundation bearing capacity would pose damage to miniature structures on highway, threatening the security of highway. Layered foundations are widely distributed in Northern Anhui, the traditional methods of computing the bearing capacity and additional stress disagree with the situation...

For widespread distribution of layered foundation, deformation and bearing capacity are two important elements in engineering project, the calculating depth of additional stress must first be established in deformation computing. For structural features of layered foundation to explore the impact factors...

In order to study the reflection crack resistance of asphalt mixture, using Overlay tester, crack resistance property of five asphalt mixture types were analyzed based on the grey relation analysis. The paper analysis the influence of mixture types temperature and volume index (void ratio) on the anti-cracking...

In order to adapt to the complex traffic and reduce the delay brought by simple traffic model, an improved adaptive genetic fuzzy control method was put forward for intersection traffic signal control. In order to improve the computational efficiency , the population size should be adjusted and the Gaussian...

The mechanical behaviors of interface between gravel soil from three gorges reservoir area and concrete structure had been investigated to by using the large-scale simple shear test. The effect of moisture content or stone content on the interface mechanical behaviors was discussed. The results indicated...

The influence of curing temperature on the deformation properties of magnesium oxide(MgO) micro-expansive concrete were studied.Hydration mechanism and expansion characteristics of magnesium oxide(MgO) in cement paste were analyzed by XRD DSC-TG and SEM. Results indicated.Curing temperature had a great...

The solid and fluid phases are not miscible phases while solid deformation and fluid transport are generally coupled processes. On long time scales, fluids allow stress-driven creep in the middle rock mass with the constant pressure. This paper aims to demonstrate time effect to rocks with the fluid-structure...

The existing railway wagon flow forecast method cannot meet the demand of the actual railway transport organization. The old system is embodied in the slow computing speed and low accuracy. The railway wagon flow forecast system based on Hadoop-Hazelcast is designed to improve the accuracy of the forecast,...

It has become a novel and universal engineering problem that the new construction caused uneven foundation settlement of existing building foundations. This paper relies on the actual project that the tilt of existing buildings caused by a new tunnel. For the uneven settlement of existing building foundation,...

Based on the large-scale field conceptual solid model experiments of artificial torrents and water-rock flows, this paper studied the changes of flooding areas and cross-sections morphology of river channel in different bedload transport rates, and the results showed that:1) there is a critical point...

China cities are in the state of shortage of water in recent years. Although large scale projects have solved some of the city's municipal water supply problems the linear water supply policy still can’t cover all the small and medium-sized city. In recent years, seawater desalination technology has...

The hot-side radiation intensity is an important factor of the semiconductor refrigeration performance. This article first selected three radiation ways: the air cooling radiation, the heat pipe radiation as well as the water cooling radiation, and then conducted the experimental study to the three radiation...

In order to study the influence of bridge deck pavement and hinge joints on transverse load distribution of void slab bridge, this thesis took actual engineering as background and applied the finite element software ANSYS to establish a finite element analysis model of simply-supported void slab bridge....

Summarizing the existing rigid-flexible composite pavement structure types in service, the paper recommends two pavement structures , adopts the method of expert evaluation of index quantification, sets up the quantitative evaluation model for asphalt pavement structure layer selection and works out...

Using the case of Hanyang, this paper provides new evidence of land transformation in China. Together with massive non-urban to urban land transformations, there is an increasing proportion of land being converted from urban to non-urban uses. The results of exploratory spatial data analysis demonstrate...