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...

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...

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...

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...

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...

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 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...

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...

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...

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...

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...

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...

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....

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...

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...

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...

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...

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 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...

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...

There is a high risk of metro foundation pit construction in the soft soil area, where foundation pit kicking occurs frequently. In this paper, by using the material point method, the failure modes and mechanism of foundation pit kicking are studied. Parametric study is performed to further analyze the...

Government procurement introduce the concept of life cycle cost is of great significance. This paper analyzes the government procurement application situation and existing problems of life cycle cost. From the practical level, this paper analyzes the concept of life cycle cost in the government procurement...

The bridge bearing stress and deformation can eflect the safety of the bridge structure significantly. For bridge bearing status monitoring, identification and early warning technology, in recent years, is an important research direction for structural health monitoring. This paper is based on a model...

Reactive powder concrete is a kind of high performance concrete. In this paper, it is analyzed that two kinds of fibers RPC on appearance, mass loss, the compressive strength at the different high temperature and the microstructure after high temperatures.

This article designed to make a comparison between the concrete mixed by the river sand of debris flow in Dongchuan, Yunnan province and the concrete made from the mixed sand in its working performance and mechanical property. By the numerous experiment testing results, we can find out the advantages...