Advanced Materials Research Vols. 450-451

Abstract: The output of the wind turbine has high randomness due to natural wind velocity. Whether the output can be predicted accurately or not is directly related to the feasibility of dispatching wind power in the power network. The key of wind farm output prediction is to predict the wind speed of wind farm site. This paper uses AR model and BP neural network to predict 24-hour wind speed, and proves the feasibility of these two predicted methods according to comparison with measured wind speed data. This paper has certain reference significance for improving the precision of wind speed prediction.

Abstract: SRC (Steel Reinforced Concrete) as a new type of Composite Structure is applied to the design of a soil at wharf to give full play to the advantages such as good stability, good wind and earthquake resistant performance. The capability of applying SRC in soils is proved through Empirical Research. Finally, authors point out the real significance of improving ductility and seismic property by SRC.

Abstract: Many kinds of in situ stress measurement methods are used nowadays, two most common of which are the overcoring and the hydraulic fracturing methods. In order to study the distribution law of in situ stress field in the deep position of Xingcun coal mine, 4 points of in situ stress measurement were carried out in underground roadways at the -1200 m level adopting the overcoring method. The hollow included technique was used to measure the 4 points of in-situ stress. According to the analysis of the measurement data, the results indicated that: (1) Among the three principal stresses on all measurement points, two principal stresses were nearly horizontal and one was nearly vertical. Furthermore, the maximum horizontal principal stress was more than the vertical principal stress, and the magnitude of vertical stress was equal to the weight of overburden rock mass;(2)The value of the maximum horizontal principal stress reached 52.3 MPa , the directions mainly concentrated on the extension of N42°W – N85°W, and the obliquity mainly concentrated on the extension of -29° – 10°;(3)The ratio of maximum horizontal principal stress to vertical principal stress was 1.42 - 1.64 with an average value of 1.55. The result presented that the in situ stress field in Xingcun coalmine at the depth of -1200m was dominated by tectonic horizontal stress. According to the results above, we gained the in situ stress states and the distribution law in the measured region. At the same time, it can offer reasonable basic parameters for underground roadway layout and support design of Xingcun coalmine.

Abstract: this paper take the main pavilion of the 8th China (Chongqing) International Garden Expo for example, using Ecotect and other simulation software as research tools, starting from the radiation, shadow distribution and air environment to expand the architectural design process, According to the use of software to provide a scientific basis for the architectural design for designers.

Abstract: The article research the characteristics that the old traditional rural architecture work independently, and several problems of present new countryside-construction, which is combined with the future rural intensive management development way, then point out the local green strategies of contemporary rural architecture. Finally, two examples of new rural house are introduced and analyzed, one is rural house built by brick of straw in north-east of china, and the other is Yingjun Xie’s research of light steel structure rural house, which built by the way of collaborative construction.

Abstract: How to determine the foundation bearing capacity of high-stacked culverts in highway construction becomes a problem that must be taken seriously. Combining with the stress characteristics of the foundation soil, the soil force was analyzed for finding the improved effect on the separated foundation bearing capacity of lateral fill. Establishing the calculation model and algorithm, the general formulation of separated foundation bearing capacity considering lateral fill was deduced. Then under direction of similarity theory, six model experiments were designed to simulate the silt clay foundation deformation in whole loading process. The pressure-settlement curves were drew and the foundation bearing capacity under lateral fill height of 0 m, 4 m, 6 m, 8 m, 10 m, 12 m were measured. Test results showed that with the fill height increasing the bearing capacity increased significantly, it had been reached 815 kPa when the fill height was 10 m. But the growth was nonlinear, it first increased from 18.40% to 20.37% and then reduced to 8.59%. At last the bearing capacity reached 885 kPa while fill height exceeded 12 m. Meanwhile the errors between the calculated results and measured by model test were almost less than 10% so the algorithm was feasible. The conclusion is that the lateral fill is advantageous for improve the foundation bearing capacity and reduce project cost significantly when the settlement of the culverts foundation satisfied the design request, with the lateral fill increasing, the rate of the improvement first increases and then decreases, at last it tends to 885 KPa when fill height exceeded 12 m.

Abstract: This paper presents a new-type forging flange used in steel transmission towers, that is to forge a same flange and same bolts in large a forging flange, in order to increase the strength and rigidity. This paper seted up finite element models of inner forging flange and outer forging flange. At the same time the article established finite element models of the new-type forging flange and new-type rigid flange used in engineering.The comparative analysis of the results shows that, the new-type forging flanges greatly improved the strength and rigidity of the joints because of the reasonable stress distribution and constraints of deformation.

Abstract: A new wet-type dust removal and desulfuration equipment can be used in ceramic industry for spray drying tower. It adopts four ways and seven grades remove dust. A pair of tubes are erected inside and outside its structure; it has self- clean system, and it can keep the ability of dust removal for a long time. Practice has proved that this equipment has the advantages of low cost, easy maintenance, high efficiency and can be secondary desulfurization, it has great practical significance.

Abstract: This study has focused on post occupancy evaluation of green facade for elementary school classroom in Taiwan to appreciate the actual situations and usage problems for green facades. This study has chosen three schools for case study. Based on field measurement, and user interview and user questionnaire, they are being used to clarify the environment improvement contributed by green facade establishment and its effectiveness of environment education of each case. This study also found usage and maintenance and management problems derived from green facade installed. Results show that the effectiveness of green facades on the classroom indoor environment improvement is partial significant, on the environment education is not as good as anticipated and on the maintenance and management have many problems and some unexpected negative effects. According to the above results, this study proposes relative planning and designing suggestions as a reference for schools that are willing to have green facades establishment in the future.

Abstract: This paper, based on the theory and methods of urban design, analyzes the effects of stimulating and driving the space vitality from economic, social and cultural aspects. It is trying to find out main problematic issues of the protection planning of Chinese Eastern Railway Culture Town and to explore the methods of shaping vitality of historic culture town. In addition, it also produces an empirical research taking the town of Hengdaohezi as the case study.