Abstract:In order to solve the problem of large-span bias tunnel construction process,and tunnels excavation influence with each other,the finite difference method was used to calculation and analyze the large-span bias small spacing tunnels construction process and space effect. The results show that whichever kind of excavation method,the tunnel stress have asymmetry,shared rock and the hence of large buried depth on one side is the stress concentration area,excavation shallow side first is more conducive to the stability of surrounding rock. When two tunnels were excavated at the same time,the tunnel face was beyond a certain range,that the mutual influence of two tunnels was small.

Abstract:Panel zone strength in welded moment-resisting-frame connections have a significant effect on the stress and strain distribution in the connection and consequently on connection performance. It is generally believed that panel zone yielding is a yield mechanism that contributes to ductility of moment frame connections,but connections with excessive panel zone deformation may have premature connection fracture and reduced ductility. The conclusion was drawn based on the theoretic analysis and tests on T-shaped connections with continuity plates. effect of panel zone strength on ductility capacity of welded beam-to-column connections without continuity plates were investigated through three-dimensional,nonlinear,finite-element analyses of connection subassemblies. results show that strong panel zone contributes to ductile performance of connections without continuity plates.

Abstract:Blast walls are widely used to prevent important architecture from terrorist attacks and accidental explosion. Diffraction flow effect makes the explosive shock flow field change and overpressure at a certain distance behind the wall is greatly increased. LS-DYNA was employed to study the diffraction flow and overpressure time-history behind blast walls in the case of an explosion near above ground. It is observed that the diffraction flow overpressure behind a wall about 1. 5 ~ 2. 5 times wall height is large,and it is more dangerous than there is no wall owing to Mach reaction happened around double wall height behind the wall. The research provides a reference for arrangement of blast walls and blast-resistant design of buildings behind the blast wall.

Abstract:To explore the soil compacting effect of TC pile with disc,this paper conducts a test on soft soil penetrating of TC pile with disc in Shanghai,by measuring the pore pressure,earth pressure,lateral displacement,and land upheaval around the test pile. The test shows that the excess pore pressure increasingly become deeper from the up to the bottom and dissipates quickly after pulling out the sinking pile,meanwhile,the earth pressure also increases with depth,however decreases along the radial direction. We also find that the soil moves outward during the pile sinking period while moves inward after pulling out the pile,at the same time,the ground sinks with a decreasing speed as the radial direction increases.

Abstract:The deformation of roadbed and control of post-construction settlement are great challenges in widen subgrade projects because of the long-term deformation effect of soft soil. The stability and deformation of the case in the condition of different dumping thickness and filling velocity was discussed,based on the FEM model for soft soil subgrade of new building Pukou highway. The result shows that the post-construction settlement and the differential subsidence of pavement increased with the increasing filling velocity. In this situation,pore water pressure is not easy to dissipate,so the soil consolidation rate decreases. To accelerate project schedule,drainage board should be built up in time. And the differential subsidence of pavement under the same filling velocity is increasing when the dumping thickness increases.

Abstract:While the influence of orientation of structure plane on parameters of rock mass is neglected in the traditional GSI system. In this paper,as a case of cavern Ⅱ in the Jurong Pumped-storage Hydroplant Project,the influence coefficient between the distribution of structure plane and surface condition rating( SCR) of surrounding rock is calculated based on the space relation of structure plane and axis of cavern; the statistical method of SCR of surrounding rock is modified,and the experiential estimates of equivalent physical mechanic parameters of surrounding rock mass are acquired.The investigations show that the calculative errors of equivalent deformation modulus and cohesive strength in surrounding rock based on modified GSI system decreased by about 22. 3%,8. 3% respectively.

Abstract:For materials such as steel,concrete performance on the spatial variability and non-uniformity problem,considering the reliability theory to uncertain factors as the research object,which can better to simulate the actual stress distribution of components. Getting preferable reinforcement calculation scheme will be useful to put forward the reinforcement method based on reliability theory applied to the optimization of beam design. The results show that the algorithm based on reliability theory is better than conventional algorithm to save the material consumption. The results obtained by the standard formula test meet the design requirements and can provide a reference for practical engineering design.

Abstract:Taking Caojiawang station in chongqing for example,vault crown settlement and peripheral convergence of tunnel were monitored,and the monitoring data was processed by using logarithmic function fitting,it was predicted that the final value of the tunnel vault subsidence is 11 mm and the peripheral convergence of the tunnel is 8 mm,The stability criterion of surrounding rock was adopted to regression analysis on monitoring data,the tunnel surrounding rock was in a safe state,so monitoring data was processed,variation of stability of surrounding rock was mastered.

Abstract:For getting more accurate characteristic value of subgrade bearing capacity,Combined with the engineering instance,it describes process of the shallow plate load test at three points in the soil of the project of Fengyuan community in Handan,and the test results from the test first-hand data are obtained,then the load and settlement amount( p-s),lgp-lgs and other curve graphs are made,according to different methods,such as the method of intensity and relative settlement control,to get characteristic value of subgrade bearing capacity at three points under meeting the specific conditions,after brief analysis of them,the characteristic value of subgrade bearing capacity is determined. Finally,the value will be verified with the results of cone penetration test.

Abstract:Based on the wave theory of the pile-soil system,time domain analysts and frequency domain analysts of pile longitudinal vibration,with a vertical transient impact force applied to the pile top,are studied theoretically. The time-domain velocity curve of integrate pile are fitted with the theoretical curve. The characteristics of time-domain velocity and velocity amplitude spectrum curve of integrate pile are analyzed when pile-soil parameters are changed,similar analysis are studied for non-intact piles( expanding,reducing,segregation). The results shows that the changes have influence on curves,the larger the pile side soil shear wave velocity,the more the pile bottom reflection attenuation. The theoretical response correlates well with the dynamic testing of an engineering pile by the reflected wave method.

Abstract:Handan traditional dwellings are the ancient buildings with long history and culture. Based on the traditional dwellings in Handan city with the preliminary investigation and analysis methods,the traditional dwellings in Handan city regional characteristics was researched preliminarily. And the Fengshui culture's content of Handan city and its' mode of expression were discussed,and the Fengshui culture of houses was revealed. The results are looked forward to develop the Fengshui culture of traditional dwelling.

Abstract:The Huaihe street is an important part of commercial and culture in Hefei City. Some problems have been existing which decreased the quality improvement. Based on the deeply investigation,optimizing strategies are promoted through the analysis of its spatial sequence and scale,monument,node,traffic,in order to provide a excellent shopping and relaxation environment.

Abstract:This paper analyzes the waterfront landscape with Hanzhong City. Starting from the landscape elements,this paper summarizes its' three characteristics. Based on visual research,the riverside with visual space are analyzed,multiple riverside with important visual space node are selected,initial node organization model are constructed and organize multiple nodes form a whole vision,which improve the quality of Hanzhong waterfront's visual effect.

Abstract:The article mainly describes the purification effect of different plants to treat the domestic sewage in subsurface flow constructed wetland. According to the analysis,the irises in subsurface flow wetland have a good purification effect for TP and turbidity,and the removal rate reaches to 60% and70%. The Canna and reeds in the fourth and fifth unit have a significant impact in purification,and the removal rate reaches to 12. 2% and 11. 9%. The reeds in the fifth unit have good purification effect for TN,and the removal rate reaches to 15%. The five units all play a considerable role on the purify of CODmn. Wherein,the second unit has a high removal rate in all indicators due to the influence of water quality. In addition,the subsurface flow constructed wetland has a good purification effect on Fuyang River,and the effluent concentration of TP,TN,NO₃^--N,CODmn and turbidity are 0. 01mg /L,3. 1mg /L,3. 5mg /L,2. 7mg /L and 0. 085 degree. According to GB3838-2002,TN is excepted to be below the Ⅴ water standard,the other indicators of the effluent quality meets with Ⅱ water standard.

Abstract:The distribution and migration of 6 kinds od β-lactam antibiotics( amoxicillin,procaine hydrochloride,cefaclor,ceftriaxone,cefotaxime,cefazolin) in municipal treatment plant were analyzed and studied in this paper by SPE-HPLC. The results showed that the contents of β-lactam antibiotics in influent and effluent were 0. 956 ~ 2. 967μg /L and 0 ~ 1. 988μg /L,respectively. The average removal rates of amoxicillin,procaine hydrochloride,cefaclor,ceftriaxone,cefotaxime,cefazolin were 100% 、34. 8% 、37. 9% 、22. 0% 、47. 8% 、63. 2%,respectively. The average removal rates of amoxicillin and cefazolin were higher than others. The main migration pathes of β-lactam antibiotics were degradation and sludge adsorption.

Abstract:According to the existing water quality monitoring data from monitoring sites in Jining city,the clustering analysis method is employed to analyze and evaluate the water quality of Jining city.First of all,by using the statistical software SPSS,we aggregate and classify these monitoring sites;then,the composite index is applied in evaluating the water quality of these monitoring sites; at last,the water quality of Jining is divided into six categories by the clustering results and the comprehensive evaluation combined together. In the regional water environment evaluation,monitoring sites are classified by using clustering method conforms to the distribution actual of different pollution sources,which avoids the defect caused by only using the comprehensive index method.

Abstract:For the environmental quality evaluation of vegetable bases standards uncertainty,the paper applied the unascertained cluster method to the environmental quality evaluation. In the paper it selects soil environmental quality of six township of Liuhe district,Nanjing city,Jiangsu province as the research objects. Taking "China's soil environmental quality standard"as evaluation criteria,and selecting six common pollutants as evaluation factor,such as Cd,Hg,As,Cu,Pb,Cr. The environmental qualities comprehensively based on the measured data of Jiangsu province in the experiment were assessed. At last,six samples of soil environmental quality were divided into clean,light pollution and severe pollution. And the class centre,subjection degree and classification results were obtained. Experimental results show that the classification result is consistent with actual situation and the method applied to the vegetable origin in environmental quality assessment is feasible.

Abstract:According to test date of coal petrologic test and proximate analysis,this paper provides an overall coal quality in mineable coal seam of Taiyaun formation and Shanxi formation in Fengyangshan mining area. On this basis,the correlation between coal quality of mineable coal seam and coal formation environment was discussed in detail. The results show that the mineable coal seam of Taiyaun formation is lean coal which characterized by low ash yield( air dried basis),low volatile( air dried ash free basis),high sulfer( S_t,d),and that the mineable coal seam of Shanxi formation is lean coal which characterized by low ash yield( air dried basis),low volatile( air dried ash free basis),low sulfer( S_t,d). The ash content of mineable coal seam of Taiyaun formation and Shanxi formation were both low,but Changes of ash yield in Shanxi formation coal seam is obviously larger,and the coal ash composition parameter is higher. The main sulphur components in mineable coal seam of Shanxi formation are S_p,d,S_o,d,which is much lower than the components in coal seam of Taiyuan formation. It builds the coal-forming environment from the bottom up,from neritic facies,transitional facies to continental facies evolution. The Water in peat bog also evolved from salt water,brackish water to fresh water. So the relative coal quality features also showed vertical zonation.

Abstract:In order to study micro-seismic signal characteristics of coal rock burst. Monitoring test of coal mine micro-seismic signals was detected by using micro-seismic monitoring system,and analysis of the micro-seismic signal the regularity of coal rock burst were carried out. The test results show that the change trend micro-seismic signals correspond excellently with the strength of coal rock burst,the basic was positively correlated. Micro-seismic signal intensity,coal and rock rupture accompanied by greater energy gradually decreased with the time increasing,micro-seismic signal also decreased significantly,finally the rear sensor not detected signal.

Abstract:Firstly,this paper studied the Web data mining and its application in the e-commerce,and found the disadvantages of traditional e-commerce Web data mining system. The disadvantages contain closed mining engine,difficult dynamic management for algorithm and the mining result is difficult to be reused. Finally it proposes a Web data mining framework suitable for e-commerce based on Web Service and Mobile Agent and the framework has better portability and higher mining efficient.

Abstract:Aiming at the lagging for the monitoring of warehouse and lacking the intelligence,an automated warehouse monitoring system is designed by using the internet of things,which may be used to monitor the temperature,humidity,and case of fire in the warehouse simultaneously. The temperature and humidity sensor SHT10 are implemented as the detector of the temperature and humidity,the flame sensor R2868 and the ionic smoke transducer HIS-07 are implemented as the detector of smoke and flame to find the fire. These data are sent to the computer in the manager center through Zigbee technology and the computer will process and analyze them. When the fire occurs,this system can extinguish the fire and call the manager or 119 automatically. The experiments have been performed,and it is shown that the performance of system is reliable,which has the practical value.

Abstract:An enhanced D*Lite algorithm for safe path planning of autonomous mobile robot is proposed. Based on the grid modeling method,this algorithm use the detection of obstacles' sharp corners and connections to plan paths satisfied the robot's safe requirements and presents a method to optimize the complex obstacle's unnecessary paths. The simulation results show the method can achieve safe paths planning and path optimization.

Abstract:Based on CAD-CFD software Francis hydro turbine runner blade optimization is studied;combined with CFD,the overall performance optimization for runner is realized by using Workbench /BladeGen Parametric modeling. Firstly Francis hydro turbine runner with a suitable water head from140m to 170m is designed by according to the 2D Design Theory. On the basis of the flow field numerical analysis results,the flow pattern is eventually improved and the efficiency is increased by using the geometric parameters controlled and optimized by BladeGen. The structure parameters of the runner could be easily controlled by BladeGen,and the research of the complex relations between structure and performance of the Francis hydro turbine can be conveniently conducted,which has a good application prospect in the design of hydraulic machinery.

Abstract:The periodic torque ripple is one of the main shortcomings for switched reluctance motor( SRM),the resulting vibration and noise has been an important factor of restricting its development.This paper analyzes and calculates the SRM based on rotor skewing,this paper analyzes the influence of rotor skewing to static characteristics and compared with the straight rotor structure. Analysis shows that the rotor skewing can effectively improve the performance of the motor,and can weaken the torque ripple in a certain extent.

Abstract:The complexity of the production in coal mine lead to the dynamic characteristics,fuzziness and randomness of coal mine accidents,and impact of coal mine safety risk grade indexes,the complex nonlinear relationship between index and risk level leads to low accuracy of traditional BP neural network evaluation method. This paper puts forward a new method of coal mine safety risk assessment. First,the author created the evaluation index system of coal mine safety risk,and then used analytic hierarchy process( AHP) to determine the index weight,the index for sorting,finally put the RBF neural network as assessment tool and built the coal mine safety risk assessment model based on the AHP of RBF neural network. Through the instance data analysis,the results show that the proposed evaluation model is effective for coal mine safety risk evaluation.

Abstract:With the rapid development of China's construction industry,but also with a lot of waste of resources and environmental pollution,are seriously threats to the human living environment. Green building research,therefore,become today's construction goal,which needs establish a set of system,justice,green building evaluation system. This program uses analytic hierarchy process for green buildings weight analysis. On this basis,an effective solution to the problem of green building evaluation fuzzy comprehensive evaluation model was established by taken examples of green building evaluation of the case. The case evaluation of the overall quality is "good". Examples of calculation described by fuzzy comprehensive evaluation model can effectively evaluate the "green"level of green building.

Abstract:In order to solve the intuitionistic fuzzy environment comprehensive evaluation problem of engineering project,an improved intuitionistic fuzzy analytic hierarchy process is given,and the project risk assessment model based on the improved intuitionistic fuzzy analytic hierarchy process is also established. Risk factors are identified and grouped by hierarchical relationships based on engineering project risk management theory and project features,and engineering project risk evaluation index system is built,By using intuitionistic fuzzy set theory,an improved intuitionistic fuzzy complementary judgment matrix is proposed,attribute weights are given by the use of intuitionistic fuzzy analytic hierarchy process and the optimal decision is got.