Applied Mechanics and Materials Vols. 651-653

Abstract: In order to achieve the good integration of emotional factors into the links of design in the planning and design of architecture, obtain the enjoyment and pleasure of space and realize the communication between human and architecture through the revery, this paper analyses the emotional factors in the process of architecture planning and emotional interchange, which are mainly comprised of expression for the emotion of architecture design through the factors like architectural shape, shadow, color, material and lighting and enable the architecture to show more value in terms of culture and emotion.

Abstract: In order to provide the decision-making basis for making the land reclamation planning along the JingCheng expressway, this article takes 587 administrative villages along the JingCheng expressway as the assessment units, constructs the technical methods of the land reclamation division along the expressway in terms of the reclamation potential, reclamation ability and reclamation urgency, determines the weight and calculates the integrated assessment value by Delphi method and divides the research area into the preferential reclamation area, key reclamation area and reclamation area which is not suitable for reclamation recently by using the space self-organizing network model. This research is helpful for boosting the orderly reclamation of the farmland along the expressway and accelerating the modern agricultural development of the area along the expressway.

Abstract: The traditional calculation methods of mortar thickness without considering creep of the bridge caused by the mortar thickness, affects the safety and quality of the bridge. This paper proposes a mortar thickness calculation method of bonding layer in large-scale bridge construction based on Kalman filtering. The method uses the mortar creep impact indicators system, selects the creep test data as sample, and analyzes its sensitivity to the thickness to get the intensity of factors affecting mortar creep. It also filters the interface of amount of cement, aggregate content, water-cement ratio and components, and effectively computes the thickness which reduces the cost while improving the quality of bridge construction.

Abstract: Nonlinear numerical analysis for prefabricated shell wall structure is processed on this paper with the finite element software of ABAQUS. Nonlinear numerical analysis for prefabricated shell wall with vertical joint is processed firstly and numerical analysis results are found to be reasonable when compared with experimental results. Then the influence of factors such as shear strength of joint and axial compression ratio are conparatively analyzed. The results show that shear strength of joint has a greater influence on the bearing capacity and hysteretic performance of the structure and axial compression ratio also has a greater influence on the bearing capacity but less on the hysteretic performance.

Abstract: Finite element analysis could be used as a supplementary means to investigate mechanical behavior. ABAQUS software is conducted to analyze steel reinforced concrete (SRC) columns. Firstly, in order to validate the rationality of the analytical model, finite element models of test specimens are established to simulate the test process. By comparing the analytical results with experimental ones, it is found that the results from finite element analysis coincide well with that from test. So ABAQUS software could be used as a supplementary means to simulate SRC column mechanical behavior . Further the ductility and ultimate capacity of SRC columns are studied with the changes of steel bone ratio and the axial compressive ratio.

Abstract: In order to study the vertical displacement distribution of foundation pit in the process of step-by-step excavation, combined with a foundation pit project, numerical simulation analysis with finite element software was carried in the research. The results show that: in the process of excavation, the maximum settlement of soil outside the pit is 41.4 mm, which is 2.95 ‰ of pit excavation depth and conforms to the recommended value in specifications. The maximum vertical displacement of soil at the bottom of foundation pit is in the center of pit. Its value is gradually increasing with the excavation, and the maximum is 60.1 mm, which is 4.32 ‰ of foundation pit depth,also,it conforms to the specifications proposed value. The proposed scheme can satisfy the vertical displacement of foundation pit excavation in the construction process.

Abstract: Farmers are the direct users of agricultural land and their decision-making affects the agricultural landscape pattern. The influencing factors for farmer land use decision-making were studied, and a method for elucidating the micro-mechanism of the multi-agent and cellular automata models was proposed. Mengcha village is located in Mizhi County of Shaanxi Province in northwest China. The neighborhoods in the village, as well as the kinship networks and socioeconomic conditions of the farmers, were chosen for the calculation of neighborhood similarity (NBSLY), kinship similarity (KSSLY), and socioeconomic similarity (SESLY). At the parcel level, planted crops figure importantly in farmer decision-making and are expressed by parcel similarity (PCSLY). On the basis of the similarity values and two-dimensional tables of NBSLY-PCSLY, KSSLY-PCSLY, and SESLY-PCSLY, (1) NBSLY was weakly correlated with farmer decision-making (PCSLY), which did not diminish with distance between neighboring buildings in the village. (2) For KSSLY, brotherhood accounted for a considerable proportion of decision-making with 68.92% of brotherhoods having similar or pre-similar decision-making. KSSLY imposed considerable influence on farmer decision-making. (3) Farmer decision-making was correlated with SESLY. With increasing SESLY, PCSLY showed an increasing then decreasing tendency. The 2007 results were verified using 2008 data, and the validation yielded identical results for these years. Farmer decision-making is the result of interaction among many factors, and the comprehensive exploration of this issue necessitates support by detailed micro-data.

Abstract: In order to provide background information and scientific basis for pollution control of Pb, this paper analyzed the sink and transfer process of Pb in Jiaozhou Bay. Results showed that Pb in Jiaozhou Bay was mainly sourced from agricultural non-point source and urban point source, as well as atmosphere dry and wet deposition, leading to the contents of Pb were increasing from spring to summer, and decreasing in autumn and winter. Due to Jiaozhou Bay is a closed bay, the narrow bay mouth is vital to the water exchange, which is the force of horizontal distributions. Horizontal diffusion and vertical deposition were the two major transferred processes of Pb, leading to a large amount of Pb was finally transferred to the sea bottom of the bay mouth areas, and the sea bottom of bay mouth areas was the sink of Pb in Jiaozhou Bay.

Abstract: A method of predicting ground deformation caused by shield constructing was proposed with support vector machine. With Matlab language, a predicting model of ground deformation caused by shield constructing based on SVM was designed, 11parameters (soil internal friction angle, cohesive force, buried depth, excavate speed, total thrust, average support pressure of the front two ring pressure tank, average support pressure of the front one ring pressure tank, average soil pressure of pressure tank, shield cutterhead total torque, synchronous grouting quantity, unearthed amount) were chosen for ground deformation influence factors, then an intelligent predicting model of ground deformation caused by shield constructing was built, and the forecast model was used for surface settlement prediction in shield tunneling of Shenzhen metro.

Abstract: With the continuous development of China's coal technology, prestressed concrete stand in the coal mine construction jobs because of the building structure stiffness, mechanical characteristics, and other characteristics of joints less widely used. Firstly, the main concepts of prestressed concrete is analyzed, combined with the building of a coal mine stent design prestressed concrete examples of the main problems in the mine design process involved the stent to expand a detailed analysis and discussion, hoping to mine construction of large buildings play a guiding role in improving mine safety production conditions, to provide reliable protection for coal mine safety.