Applied Mechanics and Materials Vols. 716-717

Abstract: in architectural decoration process, pressure-bearing capacity test is the foundation of design, and is very important. To this end, a pressure-bearing capacity test method in architectural decoration design is proposed based on improved genetic algorithm. The selection, crossover and mutation operators in genetic algorithm are improved respectively. Using its fast convergence characteristics eliminate the pressure movement in the calculation process. The abnormal area of pressure-bearing existed in buildings which can ensure to be tested is added, to obtain accurate distribution information of the abnormal area of pressure-bearing. Simulation results show that the improved genetic algorithm has good convergence, can accurately test the pressure-bearing capacity in architectural decoration.

Abstract: This passage picks up the case of the loess landslide in Zhangcunwan, Jingyang county, Shaanxi province for the research of the formation mechanism and stability analysis of loess under the condition of irrigation, which raises the dynamic equations of loess landslides induced by irrigation,and applies the equations into the case in the landslide in zhangcunwan. Besides,the passage has given the trajectory equations in the landslide in Zhangcunwan and verifies, as a consequence ,the results can be calculated accurately and it generally tallies with the actual one. The internal soil anti-shearing strength and the safety factors will decrease when the groundwater level rises 1m per case till the stabilizing force decreases by the soil sliding force when the whole slope if in the state of limited equilibrium.As the contents of irrigation rising continuously of the water level, the anti-shearing strength will be outdone by the shearing strength and this shall bring about the loss of the stability of the slope..

Abstract: This paper makes analysis on accelerated speed overload and hydraulic pressure after earthquake, as well as the relationship between the ground motion peak acceleration and the dam body displacement, dam body damage volume ratio, and dam facing damage volume ratio. According to dam body partition, this paper takes the ratio of over stress accumulative duration and stress required capacity as parameters, and studies arch local earthquake damage evaluation of dam body partition. After analysis, it is found that after arch dam experiences different geological process, there are damages in both sides of dam abutment and upper part of dam body, overstressed area expands continuously and local damages take place.

Abstract: In the process of architectural design, sectional shape is used instead of original shape. Shear isolation design combined with reinforced blockade, make up for the lack of original wall bearing capacity, stiffness and ductility, energy, lack of hysteresis characteristics. In order to determine the effectiveness of shear isolation design under reinforced blockade. Building shear cracking damage experiment is performed. The results show that cross-sectional shape and reinforced shear wall buildings blockade isolation performance was significantly better than the original shape of the shear wall design, reinforced blockade is significantly enhanced, strength and ductility effect are dramatically improved.

Abstract: Rock burst is one of geological hazards encountered frequently, rock burst research has important significance for safety production in mine. The paper based on different definitions of rock burst, the produce conditions and manifestation of rock burst are summarized, and classified. The mechanism and prediction of rock burst in the mainstream view the advantage and disadvantages on comparison, a novel thought is given for rock burst mechanism. Suggest t to continue research on the mechanism of rock burst, and multi field coupling method to predict rock burst.

Abstract: The early age cracking of cast-in-place board has been a common phenomenon in engineering; however, the theoretical research on this kind of problems develops far behind the engineering practice on the early cracking of cast-in-place board. So it is necessary to explore the early cracking of concrete research problems from various aspects at present.

Abstract: With the rapid development of the city, the construction of underpass of adjacent subway tunnel will have influence on the safety of subway operation. Base on underground pedestrian passage engineering, the complex construction conditions of oblique crossing-over subway running tunnel for A section channel is considered, plane strain finite element simulation analysis for the excavation and support and secondary lining construction of A section channel are conducted, and two kinds of construction conditions of adjacent and crossing subway tunnel for A section channel are simulated, the influence of the construction of A section channel on adjacent subway running tunnel is also analyzed. The results were shown that the maximum floating upward value is within 1mm and almost no lateral displacement during the construction of A section channel. which meet the requirements of urban rail transit safety operation, and the basis for advanced control of underpass construction is provided.

Abstract: Columnar jointed basalt rock block is small, but has a longitudinal wave velocity, high modulus characteristics. This article is based on the structure of surface measurements, acoustic testing, and field distortion tests results, from the liquid structure, structural plane development situation, etc., analyses the causes of this phenomenon.

Abstract: Radiant floor cooling and heating system is the new system which can shares the same tube to cooling in summer and heating in winter. It meet the requirements for human comfort , save energy, and reduce cost, so it is popular the field of building energy efficiency in recent years. This paper briefly describes the radiant floor cooling and heating field research at home and abroad and its advantages, and briefly analyses the factors of heat exchange efficiency in radiant floor cooling and heating system.

Abstract: In the present situation of global warming and shortage of ecological resources, the human living environment is further deteriorating. In order to cope with the ecological changes on the planet, the idea of sustainable development has been promoted. The building industry, a major consumer of resources, must achieve sustainable development. The paper expounds on the sustainable development ideas in architectural design, and presents a preliminary discussion on the situation of sustainable technology development in the current architectural design from 3 aspects, namely natural lighting, passive envelop enclosure, and solar energy technology, combined with analysis of relevant cases.