Abstract:Aiming at the long training time and slow convergence rate of BP neural network,wavelet basis consisted by the translation and stretch of mother wavelet constitutes the activation function of neural network basing on the theory of wavelet analysis.The neural network can use simple topology to approximate function by the guidance of network initialization and parameters selection.The nonlinear relationship between the bearing capacity of CFG piles composite foundation and its main factors is established by using the trained network.Under the same structure and parameters,the prediction results are analyzed and compared with the BP neural network.The result shows that this forecast model makes full use of the wavelet transformation to analysis the data of time-frequency localization and is combined with the self-learning function of artificial neural network,which makes it have a strong ability to approach and fault tolerance.The precision and speed by using the trained wavelet neural network is higher and its predicting result is more accurate than that of BP network.

Abstract:The plane models of a six-store steel frame and steel frame-steel plate shear wall with steel plate shear wall(SPSW) in different thickness were established by using the finite element analysis software SAP2000,the structural response of which were analyzed under the eight seldom occurred earthquake,and the impacts of SPSW with different thickness to the steel structure were mainly compared from the aspects of stiffness,natural vibration period and relation of the coping displacement,relative storm displacement of the models.The results shows that SPSW can enhance capacity building of the earthquake obviously,and the coping displacement of the models is decreasing with the increase of the steel's thickness;the structure with the thickness of 8~16mm has the best compatible stain performance.

Abstract:The volatile coefficient was adjusted according to the defect of slow convergence rate and trapping in local optimum of Ant Colony Algorithm(ACA).Volatile coefficient was initially endowed with a greater value to make the ants search for the better path,later,was decreased and self-adjusted by degrees to avoid the local convergence and obtain the global optimal path.The improved algorithm was used for the optimization design of concrete-filled steel tubular structure and the design model was established,in which the design parameter is section's character and the aiming function is the minimal cost.The pure flexural and axial-compressed members of concrete-filled steel tubular structure were used as the examples which were optimized for the design model.The results were compared with the ones of improved Genetic Algorithm in literate [4].The results showed that the column and the beam obtained the global optimal solution after 58 and 52 iterations separately.The algorithm jumped out of the analysis of the complicated-interactive mechanism between steel tube and confined-concrete,was simple and efficient.

Abstract:Based on the analysis of the test data of service foundation reinforced concrete structure under ground water and ground soil environment(geotechnical environment),the corrosion damage characteristic and the evolution characteristic of the anti-corrosion coefficient and the carbonation depth were studied.The results showed that the corrosion damage effects of geotechnical environment were ubiquity to the foundation reinforced concrete structures.And the corrosion damage evolution of reinforced concrete structure was closely related to the type of geotechnical environment and the corrosion medium factors;the anti-corrosion coefficient decreased with the increase of attended time.At the same time,the carbonation depth increased with the increase of attended time.

Abstract:The C30 recycled coarse aggregate concrete is produced by use of the concrete blocks from the dismantled masonry structure buildings and the influence of recycled coarse aggregate replacement percentages,water cement ratio,and sand ratio on the 28 d compressive strength and workability are studied in orthogonal experiment design.The results show that the recycled coarse aggregate replacement percentages is the most primary factor effecting on 28 d compressive strength and workability;and with the recycled coarse aggregate replacement percentages increased,strength and workability decreased;It calls for using the percentages of 60% as recycled coarse aggregate,0.5 as water cement ratio and 36% as sand ratio to make reasonable design of mix proportions,we can obtain the recycled coarse aggregate concrete that its 28d compressive strength reach to 46.3 MPa.

Abstract:In order to optimize the design of discrete variable structure of discrete variables,related scholars structure optimization design theory and method,and a large amount of research have made many beneficial results.On the basis of summarizing the predecessors' research,the structure optimization design of discrete variables current theory and its development were introduced.In order to make people know more about the discrete structural optimization more,structure optimization design method was classified according to the time sequence of discrete variables,and now some practical several discrete structural methods of optimization system analysis in the advantages were proved,at the same time,some of the more popular improving methods were introduced.Then the ant colony algorithm was pointed out to be a promising optimization method.The future development of the theory and method of the characteristics of structure optimization design of discrete variables was study tentatively according to its character.

Abstract:Based on the definition of connecting relative height(CRH),CRH is diverted and structural analyzed and design system MIDAS Building is used to analyze 8 models.With different CRH,dynamic characteristics of the structure are also compared to provide references for analysis and design of the structure.The results show that,changes of CRH have a great impact on both the lower mode and the natural period of asymmetric double-tower adjacent structure.The overall trend is that natural period decreases as CRH enlarges.

Abstract:The main span cross of the bridge in this paper appeared the serious down-warping plant disease causing by long-time operation and temperature stress.The bridge was reformed by using external prestressed strengthening technology.During the reinforcement,we confirmed the design of externally prestressed and proposed the calculation formula of the deflection after reinforcement process.The error between monito-ring results of deflection monitoring stations and calculation results of deflection formula was less than 5%.The results showed that the deflection calculation formula after externally prestressed reinforcement was correct and the externally prestressed reinforcement technique is the effective method to reduce the deflection.

Abstract:It is necessary to carry out shear design for in - situ hollow floor, which is concluded basing on the researches on “the code for design of concrete structures” , “technical specification for cast -in - situ concrete hollow floor structure” , experimental results and analysis of the structure of in - situ hollow floor, we should consider the difference between Cross rib and rib , and the importance of the stirrup . At last we provide the calculation formula of shear.

Abstract:The structure of concrete material size effect is a key issue to extrapolate laboratory measurements applied to predict the actual cumulative damage of engineering structures damaged.This project required concrete with different size of aggregate to confined experiment,observing the micro-cracks' evolution characteristics of the sample.The main task is to discuss the impact of the laws about the crack propagation of the confined aggregate materials of concrete specimens.Experimental results shows that the aggregate sample size is large and less wide surface cracks,aggregate size becomes smaller,thin and produce more small cracks.

Abstract:In this paper,the support system for an over size deep excavation in Nanjing soft soil district is introduced in detail.Different soil parameters are used for calculation of typical cross-sections.The result of calculation shows that soil parameters have an enormous influence on the safety and economy of the support system and the soil parameters should be selected according to actual situation.At last,the accidents of deep excavation are described and relevant countermeasures are put forward based on analysis results,which can provide example for design of deep excavation in soft soil district.

Abstract:Firstly,The reinforcing mechanism of grouting and grouting parameter calculation method about crushed rock soil fill foundation was analyzed.Basing on the characteristics of crushed rock soil fill foundation in mountain areas,validity and rationality of test method to evaluate grouting reinforcement effect were studied by combining with the actual engineering.The results indicate that a single test evaluation method has the high cost and low reliability.It is a reliable and economy method to evaluate the reinforcement effect by applying Rayleigh wave,static load test and dynamic penetration test.The comprehensive evaluation by using bearing capacity of foundation and deformation modulus is a reasonable and applicable judge criterion for the effective improvement range.

Abstract:To improve the prediction accuracy on the soft foundation subsidence model,the paper puts forward L-V model which is superposed on the existing Logistic model and Von-Bertalanffy model,and takes advantage of the Origin fitting software to solve the model parameters.The model is applied to soft foundation subsidence prediction compared with the Logistic model and Von-Bertalanffy model.The results shows that predicted fitting degree of L-V model is the highest to 0.997 8;the L-V model average root error(RMSE=1.512) of settlement later is less than that of Logistic model(RMSE=2.930) and Von-Bertalanffy model(RMSE=3.624),and the prediction is approximated to the observations.

Abstract:The development and distribution character of high-layer building roof in Qingdao city are discussed briefly in the article.The four forms of the high-layer building's roof are pointed out by combining with actual examples.Through the study in Qingdao high-layer building roof,we submit that their forms are lack in the cultures of regional and the concept of eco-energy and saving.And it is more adapted to the formalism and assimilation in the form outlook of contemporary international in practice,and finally the author proposes one point of geographical and ecological to remedy design shortcomings of the high-layer building's roof in Qingdao city.

Abstract:The contents of harmful trace elements including Cd,Cr and Tl of coal in the 9^#coal of Pingshuo mining area,are determined by ICP-MS.The planar distribution map of Cd,Cr and Tl elements of the mining area is generated by suffer software.The results show that the average content of Cd,Cr and Tl elements in the 9^#coal of Pingshuo mining area are 0.15μg/g、17.39μg/g and 0.12μg/g.The average content of Cd and Tl elements in the 9^#coal of Pingshuo mining area is lower than North China's,the whole China's and America's,while the average content of Cr elements in the 9^#coal of Pingshuo mining area is higher than North China's,the whole China's and America's.Their concentration factor,EF₁ are 0.75、0.17 and 0.28,and EF₂ are 2.8、0.65and 0.01.Cd and Tl are mainly in iron pyrite,while Cr is mainly in iron pyrite and clay pits.

Abstract:Based on the comprehensive analysis of tungsten and tin mineralization in Nangling,the information favorable for ore formation were Abstracted and constructed by the method of evidence weight in the system of MORPAS.We have predicted favorable areas according to the ore formation probability values.The prediction shows 4 metallogenic prospective areas.Most of the Tungsten and Tin deposits which have been proven were contained by the Guposhan pluton,Jinjiling pluton and Dadongshan pluton.Lianyang pluton has not yielded tungsten and tin deposits.The conclusion of prediction has some indication for further ore finding in this area.The research has shown that the evidence weight model on system of MORPAS is easy to realize and has reliable results and is helpful to increase efficiency and accuracy of mineralizing predication.

Abstract:In the Tianjun region of the south Qilian basin,Marine carbonate has widely developed Middle Triassic calc-alkalic,which has a bigger thickness.According to the experiment and collect hydrocarbon source rocks data,we do some research in organic matter abundance,organic matter types and maturity of organic matter.In our opinion,the marine oil belongs to effective source beds.Organic matter abundance is high.And organic type belongs to Ⅱ2.Organic matter maturities of oil and gas have entered into the mature-high maturity period.Finally,we can conclude that the hydrocarbon source rocks of Tianjun region belongs to a middle grading considering of the effect of evolution function and weathering because the sample was collected from the ground surface.

Abstract:Basing on the study of the professional 3D geological modeling software GOCAD,this article summarized the modeling principle and process.Combined with the obtained landform and geological data about faults and stratum from Dengying formation in Simian system to Quaternary system,the 3D geological visualized modeling of Shaopai mining area is built up by GOCAD.In this model,the DSI(discreted smooth interpolation)could clear up the aberration caused by Kriging when the landform,stratum and structural surface simulate are simulated.It is easily to reflect the actual geological condition by utilizing SGrid function instead of SOLID when face model is translated into volume mode.Finally,the application of the 3D geological modeling by using GOCAD was shown and the Slicer profile was given.

Abstract:Based on the detailed investigation of geological disasters along Baoji-Chengdu railway in Fengxian district,the types of geological disasters are summarized.There are there major disasters: landslides,collapse,and debris flow.The disasters are mainly small scale.On this basis,the developing characters of disasters and distributing rules are studied.The results show that the geological disasters in Fengxian district have significant spatiality and timeliness.The geological disasters in space mainly focus on two areas: the zone affected by fracture and soil.The geological disasters occur mainly in the rainy season.The study is useful to prevent and control the geological disasters in Fengxian district.

Abstract:Methane accumulation and gas overrun accident bring heavy hidden danger to the production safety in coalmines, irregularly maintenance and switch of fan and switch fault face great challenge from safety standard such as methane accumulation and gas overrunning. This paper proposed standby fan originally, guaranteed continuity of power supply during main fan switching, It demonstrate the scientific of the scheme based on fluid mechanics, meanwhile, analyze automatic control, power requirements and coal conditions. At last, it is concluded that the scheme offer the universal implemental foundation and has huge significance to the mine safety production.

Abstract:With the analysis of the axial force of every bar in intelligent truss,this paper deduced the piezoelectric truss node displacement,and then transformed the multi-objective optimization to the single objective optimization by the method of random weight.Based on the wheel selection,the selection operator was improved,and then the improved genetic algorithm was used to solve the multi-objective optimization.At last,this paper optimized the actuator and number of the 12 bars intelligent truss by this method.The results show that the actuator should be fixed on the number 1 bar,so we can know that the method of random weight and improved genetic algorithm can be used in the optimization of the intelligent truss,and those methods are effective.By comparison with the method of fixed weight,this method can avoid subjectivity.

Abstract:The main reason of the problem that GB / T1312006 is difficult to carry out in practical is find out that there are difficulties in surface structure modification of new annotation in the graphics.This paper proposes the use of self-bring painting software in Windows system.This method can be used to modify a variety of graphics file formats.Modification method is shown by examples.The results indicate that this method can reduce greatly the difficulty of modification and improve work efficiency,and provide some technical support for new standard's carrying out.

Abstract:The management process and organization structure in office business were optimized to solve the process complexity of office business.The metadata and the technologies of Java and Javabean were used in this article,and the part of dynamic modification was combined with workflow in the research.Though the flexibility of the process modeling and the dynamic control in the execution,the system can get good flexibility and expansibility,and make the response quickly meeting with the change of the different demands.Compared to the tradiontional static process of model definition mode,the new one meets the needs of office business in a certain extent.

Abstract:Firstly,IPsec is introduced and its shortage is analyzed.Secondly,as a new Protocol,the limited transmission protocol is put forward.In the new protocol,if many data packets are transmitted into the network by a computer,the computer would be limited to transmit data packets in order to assure the security of the network.Then,the performance of the new protocol is simulated with OPNET software,which shows the new protocol could enhance the network performance.For example,the average of HTTP object response time is 0.013s when the new protocol is adopted in the network.When the new protocol is not adopted,it is 0.032s.

Abstract:The effects of fresh - keeping coating films on egg quality and water vapor permeability of different films were studied with whey protein isolate, com zein, wheat gluten, lactic + chitosan, sodium benzoate + chitosan and Sodium citrate + chitosan stored at room temperature (25 ℃). The results showed that the preservation effect of wheat gluten was obviously better than others, com zein and chitosan took the second place, and the effect of whey protein isolate was the worst, but it was still better than the control group. The effects of fresh - keeping coating films have certain correlation with their water vapor permeability. WVP of wheat gluten is the lowest.and whey protein is highest.

Abstract:A kind of intuitionistic fuzzy analytic hierarchy process is established by using the intuitionistic fuzzy numbers and fuzzy analytic hierarchy process to solve the comprehensive evaluation problem of intuitionistic fuzzy environment which is hard to be handled by the traditional fuzzy analytic hierarchy process.The example analysis respects the effectiveness of the method.

Abstract:A vital problem pointed out is that there is no computation in fuzzy mathematics.Fuzyy set transformation is based on "max-min" algorithm and "if … then" fuzzy logical expert system.In this paper,fuzzy set transformation is realized by membership function.First,membership function is proposed to determne the subject uncertainty under the condition of only one index.Then membership function is used to illusrate this uncertainty.Finally the transformation from index membership to object membership is used to determine uncertainty.By discussing reduntant value.It is show that membership transformation is nonlinear.Thus nonlinear algorithm is given.