Abstract:C25 grade waste concrete was prepared to produce beam bond test specimens with different recy- cled coarse aggregate contents. The effects of recycled coarse aggregate contents to total porosity and bond behavior between recycled coarse aggregate concrete and steel bar were studied by total porosity tests and bonding tests. The results show that the total porosity of recycled aggregate concrete increases场1.1% and 1. 6%respectively when recycled coarse aggregate contents increases to 30% and 50% from 10%， and the bond behavior decreases with the increase of recycled coarse aggregate contents.

Abstract:A three-dimensional nonlinear finite element analysis model has been established according to the non-linear characteristics and mutual influence of the laminated robber bearing and special pole framework. Ihe model' s time-history analysis is studied with the SAP2000 by changing the damping ra dio and rigidity of the laminated robber bearing under different seismic waves. Ihe results show that the seismic response of the special pole framework could be controlled by optimizing the parameters; the opti- mal scope of damping radio of special pole framework with laminated robber bearing is 0.22-0. 27 and the value of stiffness should be reduced suitably under the condition of allow displacement.

Abstract:The main building of the Wenchang International Hotel is irregular in both plane and elevation. Combined with this project's design ground motion parameters provided by the site seismic safety evaluation report, SATWE and PMSAP were used to analyze and compare the results of the response spectnun method (CQC)elastic analysis under small earthquake action. And PMSAP was used to make additional elastic time-history dynamic analysis. What's more，static elasto-plastic analysis has been undertaken to en- sure the capacity of collapse resistant. In all, the results show that the stmcture has good seismic perfor- mance

Abstract:Water molecules and ions will be ordered arrangement hydrates under the electric field polar, which could change the water viscosity features.The effect of perpendicular electric field on the viscosity of the water was studied by laboratory experiment. The relationship curves between the experimental curve of electric field intensity were obtained by using constant head seepage and DC power supply system; the relationship between viscosity of water with ion concentration and flow velocity and other under the electric field was analyzed. The mechanism of water viscosity changing with electric field was detected basing the test results. The results show that the water viscosity is affected obviously by the electric field. The viscosi- ty of water s decrease along with the electric field sirength increase; Under the same field strength , the wa- ter is proportional to viscosity and ion concentration, and inversely proportional to flow rate.

Abstract:For the conventional structure, plane floor stiffness is very large. Vertical lateral force resisting members transfer level action for the coordination of deformation through the floor. According to the concept of seismic design principles, the floor openings to the structure of local earthquake are detrimental, but there is no clear design specification. Based on the existing engineering design information and combined with the understanding of the specification, this paper presented the treatment with floor partial discontinui- ty of the different R. C structures, if the stmcture is regular, we can use the rigid floor assumption to cal- culation, and otherwise we adopt elastic slab assumption to analyze the structure.

Abstract:The wnstmction technology of masonry structure reinforced with externally bonded steelwas de- scribed. Based on summarizing the misted research results, the eccentric compressive bearing capacity for- mule of wncrete hollow block walls reinforced by bonding steel plate was proposed. The structural eccentric compressive stress state was analyzed by using ANSYS software, and then the accuracy of the formula was checked. The results put forward to some references in engineering design and constmction.

Abstract:Before opening the traffic and after the constmction of cement concrete pavement slab, the ce- ment concrete pavement slab may produce the early cracking, when the deformation of the temperature and moisture change is restrained; the slab stress exceeds the concrete tensile strength. Research founds that base play significantly effect on the early pavement cracking. Basing.the early cracking mechanism of the cenent concrete pavement slab and temperature data measured in the early72 horns of cement concrete pavement slab that is constructed in the evening and in the morning, this paper discusses the base parame- tens impact on pavement early cracking and proposes the corresponding prever山ve measures.

Abstract:The Finite Elements Method (FEM) is implored to simulate excavation of slope. The deformation of the excavated slope is computed. The factor of safety of the slope is solved by using shear strength re- duction technique and the critical slip surface can be easily obtained through the max shear strain contours of the slope at failure. The FEM results are able to evaluate the slope stability and the dangerous zone of the excavated slope can be obtained, which is valuable for slope excavation.

Abstract:The main geology matters of the foundation were the silt plastic state and miscellaneous fill with the poor stability ability and restrictions on constmction site conditions and economic considerations. The final choice of support scheme is:I section is supported by the top section slope-DJM-soil anchor; Ⅱ,Ⅲ are supported by shotcxete-bolt support. The later defom.ation monitoring data show that the sup- porting schemes are successful.

Abstract:From the constitution elements of the architectural decoration in the fiaxis area of Zhangjiakou, the characteristics of decorative patterns, content moral and artistic ideas of the traditional folk house were researched.The results show that the architectural decoration of the traditional folk house has its unique ar- tistic presentation which can be found in the roof, the wall, the windows, the screen wall and the portal tower, and its sculpting form reflect the manipulation of balance，contrast and rhythm; the architectural decorations are conveniently made by use of local materials which shows the local cultural cormotation of so- cial hamrony between nature and people and reflects the local people-oriented architectural culture.

Abstract:Several major indoor pollutant concentrations in residential construction slap-up and general renovation in Ganzhou area were detected and analyzed. The results show that the phenomenon of excessive pollutant concentration are common prevalence in both slap-up and general decoration, and the cnncen- tration of certain pollutants in high-end residential building renovation is more serious than ordinary ex- cessive dewration. Meanwhile,some measures are advanced to improve indoor air quality and methodolo- gy.

Abstract:Based on the analysis of No.2 coalbed methane reservoir's 3D characteristics, gas content and their distribution features, physical properties of the reservoir, and regional tectonic background, the con- trolling factors of development features of coalbed methane reservoir were discussed. The results indicate that the regional tectonic evolution history, which dominates directly the burial history and hydrocarbon generation history, is the main governing factor of the coalbed methane reservoir. The groundwater hydro- dynamic characteristic and surrounding cocks sealing characteristic，the key factors determining the pres- ervation condition of coalbed methane reservoir. Summarily, The No.2 coalbed methane reservoir is mono- clinic- hydrodynanuc sealing reservoir type.

Abstract:The coal samples in the No.15 coal seam drilling in the southeast of Changzhi basin were ana- lyzed with the methods of maceral analysis, proximate analysis and the analysis of the microelement. The results show that there is close relation between the thorium and aluminum hydroxide, which were found mainly in the aluminum hydroxides; the contents of gallium and uranium were relatively high and chiefly associated with the clay minerals. The silica and alumina agree with each other significantly, which are the major parts of the clay minerals and the main components of ash as well. The iron oxide and the fluorine are negative correlated.

Abstract:Occurtence and enrichment of Pb and Se in coal seam from Gequan Mine of Xingtai Coalfield were analyzed by using inductively coupled plasma mass spectrometry ( ICP-MS) to determine the cont- ents of Pb and Se in the coal, and using scanning electron microscope (SEM) and optical microscopy to observe pyrite and test vitrinite reflectance of the coal sample. The results show that the average concentra- tion of Pb is 29.13μg/g and Se 3.99μg/g, which are both higher than those from Norih China, Guizhou Province and USA; the enrichment factors，up to 1.94 and 33.27 respectively, and mainly enriched in pyrite.

Abstract:The methane sorption characteristics of the wal bed is important for the exploration and develop- ing of coalbed methane( CBM)，therefore the adsorption characteristics and influence factors of high-rank coal is conducted by the isothermal adsorption test in Gaojiazhuang area, Qinshui basin. The results show that the main coal reservoirs bare strong capacity to adsorb and accumulate CBM in Gaojiazhuang area， with the Iangmuir volume 26cm³/g and moderate langmuir pressure; between the the 3rd and 15th coal reservoirs, the latter has a better adsorption capacity and more different in the spatial distribution; the coal rank and maceral composition are controlling factors of adsorption capacity for CBM, and the moisture and ash content decrease the adsorb ability for CBM of reservoir to a certain degree

Abstract:South Qilian basin is located on the Caledonian basement basin,marine Perntian constitute the main part of the Pemuan, the Permian Basin through the sedimentary characteristics of the analysis of the region and the Permian sedimentary environment filling pattern, comprehensive development that Permian carbonate platform facies, littoral, shallow continental shelf, deltaic, fluvial fades 5 and experience of the Early Pemuan lemengou period of depression basin Caodigou period on the edge of depression basin and hajier-zongshigong penod even the depression of the residual public epicontinental basin.

Abstract:Based on the comprehensive analysis of the tenth Coal mining area in Cancun coal mine，the K₈ sandstone and the pore-fissure aquifer of Quaternary are the rminly water filled aquifers for 2^＃ coal. The lower seams of the tenth mining district aremainly affected by the K₂ sandstone from apicalplate and the Ordovician limestone water-bursting from soleplate.Through the quantitative calculation of the Ordovician limestone water-inrush and the analysis of the risk of water-bursting, it shows that the risk of water- bursting in the I area is small.And it should focus on a lower risk of Ⅱ，Ⅲ area for detecting and moni- toning. The partly slip-casting in the water - rich area could increase the grouting reinforcement of water bottom thickness and strength for the purpose of controlling the water.

Abstract:The oxidation and pyrolysis experiment were conducted to detemune the gas composition of coal samples in the 14252 fully echanized caving face of the Xiaotun mine，Fengfeng mining area. The air of the goof was collected with the gas sampling system specially made, and detemvned to divide the range of spontaneous combustion three canes. The results show that the C₂H₂ could well serve the prediction index of spontaneous combustion; and the three canes are divided as follows: the range of heat dissipation belt is 0-30m, the spontaneous combustion belt 30-127m, and the asphyxia belt over 127m.

Abstract:The arrangement parameters including the transmitting circle, the transnussion frequency, the transmitter current, the sampling delay and the high line interference，were determined basing on the pa- rametric tests in bore holes and high-field interference region; the data treatment and inversion were deal with the combination of the field actual data and the borehole logging references. The results indicate that there is notable electric anomaly between up surrounding bed and down surrounding bed in the target area; the aquosity is relatively rich in the north of Nanyi mining area and poor in the middle and the south; F₆₆ fault and X₂₆、X₃₅、X₇₉collapse columns are mainly vertical water conduc吨of the coal seams and Onlovi-cian limestone.

Abstract:Traditional geographical infomation system uses file system to manage spatial data, which only suits to personal G1S (or named expert GIS)，but cannot meet the requirement of enterprise G1S. The technology of spatial database, which uses Relational Database Management System (RDBMS) to manage spatial data, is an advanced technology driven by the socialization of GIS application. Principle, system stmcture, route of establishing database, data structure of cadastral database of cadastral management in- formation system were discussed combined with the real conditions of Dongcheng District, Beijing cadastral management based on ArcSDE technology. 11ren, module design of cadastral management infornration sys- tem was elaborated.

Abstract:The safety evaluation Assessment is an important content in coal mine safety Management. An- other evaluation models on coal mine safety for China have been proposed in this article, which based on the basic theories of principal component analysis and factor analysis. First, the evaluation index system on coal mine safety was established which overcame the lacks on the indicators system established by our pre- decessors，and then, factor analysis was used to evaluate the safety of a coal mine. From another point of view on the evaluation of coal mine safety, this paper has a certain amount of theoretical and practical sig- nificance in our community.

Abstract:The finite element model of cxoss wedge rolling stepped shaft was established by use of the AN- SYS/LS-DYNA software，and the cross wedge rolling process was simulated. Accordingly, the distribu- tion of the rolled piece in loth stress field and strain field at the stretching stage, the force condition and flow circumstanc es of the metal at the rolling deformation process were analyzed. The results sh+v that the stress of the rolled piece which is larger in the cole of the rollira, consists of biaxial tension and uniaxial compression; the strain is large in the thin rolled part and least in the cole, which decreases gradually from the outside to the inside. The deformation happened in both ends of the rolled piece and hardly in the mid- d1e, is symmetrically distributed. When rolling, the piece raclially compressed and axially extended; the maximmn strain shifted from the surface to the Cole.

Abstract:Due to the problems of the present monitoring system, such as the single function and bad data sharing, the coal mine Comprehensive monitoring system is designed based on the industry Ethernet. In this paper, the structural model of kilomega industry Ethernet plus CAN field- bus is adopted to establish the synthesis monitoring system and the system is divided into management layer, monitoring layer and de- vice layer.Every monitoring subsystem can be converged by the industrial Ethemet ring network delivery platform. Also according to the structure characteristics of the system, the coal mine comprehensive mono toning software is designed based on the configuration software and finally realized the congregation of the comprehensive information, also improved the level of the coal mine monitoring automation.

Abstract:In order to solve the problem including huge calculated amount and confirming the weights un- reasonably which exist in multi- target orthogonal test method, multi-target orthogonal test design was optimized by matrix analysis. Three-layer structure model and the layer structure matrix of orthogonal test were established firstly, thenweight matrix of test index can beworked out by matrix of each layer multiples cation and the weighs of the factors and levels having influences on the tests' results can be calculated. Fi- nally the optimal plan and the important order of the factors' influences on the tests' index values can be determined according to the weights. The results show that the problem of selecting the optimal plan in multi-target orthogonal test design can be solved very well.

Abstract:The fixed point theory is introduced into the genetic algorithm to optimize the convergence preci- sign of the standard genetic algorithm. The individual of the population is regarded as the triangulation of the point; hence the vertex label information of the individual simplex, which would guide the algorithm to the optimization researching and the the convergence judgment, could be calculated with the J1 triangulation and integer label. When the loading simplexes of individuals are transferred into the completely labeled simplfxes, the algorithm will be terminated and the global optimal solution will be got. The results of a computing example show that the improved genetic algorithm is stable and efficient.

Abstract:The variation regularity of winter-wheat leaf area index is studied by use of the SUNSCAN plant canopy analyer to simulate growth and development of winter wheat in the field. According to the modifi- canon of Logistic curve, the semi-empirical formula for estimating leaf area index of winter- wheat is founded to fit the winter- wheat leaf area index from retuming green stage to mature stage. The correlation coefficient is 0. 954 2 between simulated value aril measured value, which is up to positive level(p< 0.O5).The results show that the method mentioned above can well reflect the dynamic change of crop leaf area index.

Abstract:According to the characteristics of cooling tower such as the low gravity centre, small height- slenderness ratio and thin wall, the main parameters of blasting were designed including the cut' s shape, height，and angle. A large diameter aril hyperlbolic reinforced concrete cooling towere demolished by the way of hole-opening, steelbar-breaking and staff-reserving. The safety analysis of the flying stones from the blasting, vibration of the collapse blasting, and splashing of the crushed slag etc were conducted, and specific security measures were made. The result showed that the cooling tower collapsed in the de- signed direction after blasting,which provided reference for similar engineering design.

Abstract:By a simple example, this paper illustrates the difference and similarities between fuzzy sets and clear sets，and points out the two failing in fuzzy congregation theory:(1) definiting the fuzzy subset by m upping;(2) equating the intersection calculation with the acloptution of the larger value, and the union calculation with the adoptution of the smaller value.