Advanced Materials Research Vols. 368-373

Abstract: Stochastic medium theory is applied in the research of the ground settlements Induced by subway tunneling lately. There are a lot of simplification and many difference between the predict results and the engineering practice in the prediction process in irregular tunneling. This paper gives expression of the ground settlements Induced by any section tunneling using standard transform principle on the base of the correctional stochastic medium theory. On the basis of above discussion, proving this method is effective and reliable by the verification.

Abstract: The quality of construction joint is significantly influenced by the precision in the concrete placement. In order to obtain the mechanical properties of horizontal construction joints surface, a comprehensive research was conducted. The research focused on the tensile capacity and seismic behavior of construction joints surface. According the tests failure characteristics, four kinds of cracking model of construction joints zone were formed. Test results indicated that bond materials could increase displacement ductility more than 10％～30％. And the clamping action provided by bond materials was so good that failure didn’t occur at the construction joint itself, but in the concrete adjacent to it. Axial compressive force is advantageous for the shear capacity of construction joint interface.

Abstract: Sand pebble soil has a wide distribution, and its dynamic characteristics under dynamic loads become an important issue in engineering field. This paper takes a review at research progresses made on saturated sand soil under dynamic loads from 1970’s, and focuses on the progresses made on theoretical research, verification experiments in dynamic deformation and dynamic strength of saturated sand pebble soil under dynamic loads, and future research directions are proposed.

Abstract: In order to assess the standardization of safety accurately and objectively, this paper establishes the safety evaluation index system for the building construction according to engineering experience. The weight of each index is decided reasonably by the Analytic Hierarchy Process. Based on extension theory, the evaluation matter —element model for evaluation of construction safety is established, and the extensional evaluation method with correlative functions is put forward. Thus, construction safety is systematically evaluated. Finally it verified by project example, the result proves its feasibility.

Abstract: In our real estate enterprises, the rapid growth and lopsided organization structure have become the obstacle for the development. This paper regards real estate enterprise as the research object. Based on the foundation of substantive investigation and expert consultation，considering the practical situation of real estate enterprise, following the basic principles of index system design of organization structure adaptability evaluation, this paper constructs an index system of organization structure adaptability of real estate enterprise evaluation. Combining AHP, Grey System Theory and concrete examples, this paper works out the evaluation grade of organization structure adaptability of real estate enterprise.

Abstract: This paper presents the monitoring records of the deformation on the North Slope of Lishan Mountain in Lintong County, Shanxi, China. On the basis of the monitoring results on the site and the creep tests on the soil samples, the mechanism of the potential dangerous landslide was analyzed. The existence of lock segment in the slope and its time effect are regarded as the important controlling factors in the development process of Lishan potential landslide which has the possibility of becoming a rapid disastrous landslide.

Abstract: Through predict activities trend of ground fissures, given to the ground surface subsidence curve on the topper side in the next 50 years. Established a tall concrete frame construction model, using SAP2000 finite element programs, take a distance of the building depart from the fissure as analytical variables, in considering the dead load, live load, horizontal seismic action and combine with foundation differential settlement working conditions, analyze the elastic displacement and internal forces of the structure. The results showed that，in the topper side area near to the fissure, affected by the avoidance distance, the displacements and internal forces of the frame structure change remarkably. The growth and redistribution of internal forces performance are the most serious in the building base floor of framework， the internal forces change in ends of both beam and column will cause a change in the direction of bending moment， but also an inflection point of the column will change with the internal forces growth and regression.

Abstract: In this paper, dry farming area in northern Shaanxi unique geographical and natural environment and industrial restructuring brought about great changes in the background. Analyzed and summarized in Ansai area landscape to the status of rural settlements. From a rational land use and agricultural landscape planning, rural communities to create green, ecological environmental protection three aspects of green rural landscape to create a strategy, And proposed the establishment of green rural landscape of the "production - Living - ecology" compound operation mechanism.

Abstract: This paper researches on the hydrating capacity of HPC on freezing shaft lining in special thick alluvium as well as the temperature state and temperature stress of lining. Through building and calculating temperature field model of HPC on freezing shaft lining, it elaborates that temperature stress is the leading cause of lining crack. And we should control such a problem by tackling temperature difference and deformation; According to the principle of “working resistance and relaxation concurrently”, stuffing emulsified asp halt mixture between the inner and outer linings (60mm) as a sliding layer can lessen restriction between them and reduce temperature, thus control the problem of well case cracking of HPC on freezing shaft lining fundamentally. The control effect is obvious after practicing in some mine projects in Huainan mining area. Keywords: high performance concrete on freezing shaft lining，temperature stress，temperature difference and deformation，emulsified asphalt mixture, sliding layer

Abstract: The development of sports and the hold of the sports events have promoted the construction of sports venues. However, the government's financial burden restricts the development of sports venues. How to seek a new financing pattern that not only can alleviate the government's pressure of the preparation, but also can build a batch of sports venues to meet people's increasing need, it is the emergency problems to be solved. The three patterns-BOT pattern, PPP pattern, PFI pattern are analyzed, they are suitable for different sports venues. The research not only can promote foreign investment and private capital into the sports facilities, but also can reduce government's financial burden.