建筑物荷载在覆岩中传播规律及沉陷区兴建建筑物可行性分析
发布时间：2018-10-16 20:33
【摘要】：随着人口的快速增长和建筑用地资源的日渐减少,以及为了响应国家节约资源、充分利用资源和走可持续发展道路的号召,沉陷区上方进行房屋建设课题研究显得尤为重要。(1)研究了沉陷区上方新建筑物荷载作用下的附加应力传播深度。由布辛内斯克理论公式出发,结合地基基础规范,开采沉陷学等理论基础,确定了建筑物附加应力在沉陷区地基中的影响深度。根据传播深度临界值的标准,进而确定开采沉陷区上方房屋的荷载或者层数。(2)研究了煤层开采引起的房屋的破坏(主要是裂缝)与地表的变形和移动之间是否存在关系。通过线性回归的分析方法,可得出房屋的裂缝与地表位移变化各种单一变量之间存在线性关系,也可得出裂缝宽度在房屋长高比与地表变形双变量影响下的线性发展规律。(3)根据沉陷区不同位置对建筑物的影响不同,利用理论计算方法,对在实际工程区地表上新建建筑物的可行性进行了分析。以上分析研究阐述了采空区房屋受地表影响发生破坏的影响机理,为指导采空区房屋建设加固与抗变形的设计有重要的意义。
[Abstract]:With the rapid growth of population and the decreasing resources of construction land, and in response to the call of the State to conserve resources, to make full use of resources and to take the path of sustainable development, It is very important to study the subject of building construction above the subsidence area. (1) the additional stress propagation depth under the new building load over the subsidence area is studied. Based on the theoretical formula of Buchinesk's theory, combined with the foundation code and mining subsidence theory, the influence depth of the additional stress of building on the foundation in the subsidence area is determined. According to the criterion of critical value of propagation depth, the load or the number of floors above the mining subsidence area is determined. (2) the relationship between the damage (mainly cracks) and the deformation and movement of the ground surface caused by coal seam mining is studied. By means of linear regression analysis, it can be concluded that there is a linear relationship between the cracks of buildings and the variation of surface displacement. The linear development law of crack width under the influence of the ratio of building length to height and the surface deformation can also be obtained. (3) according to the influence of different positions of subsidence area on buildings, the theoretical calculation method is used. The feasibility of building new buildings on the surface of the actual engineering area is analyzed. The above analysis and research expounded the influence mechanism of the goaf house damage by the influence of the surface, which is of great significance for guiding the design of building construction reinforcement and anti-deformation in goaf.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU746
本文编号：2275558
[Abstract]:With the rapid growth of population and the decreasing resources of construction land, and in response to the call of the State to conserve resources, to make full use of resources and to take the path of sustainable development, It is very important to study the subject of building construction above the subsidence area. (1) the additional stress propagation depth under the new building load over the subsidence area is studied. Based on the theoretical formula of Buchinesk's theory, combined with the foundation code and mining subsidence theory, the influence depth of the additional stress of building on the foundation in the subsidence area is determined. According to the criterion of critical value of propagation depth, the load or the number of floors above the mining subsidence area is determined. (2) the relationship between the damage (mainly cracks) and the deformation and movement of the ground surface caused by coal seam mining is studied. By means of linear regression analysis, it can be concluded that there is a linear relationship between the cracks of buildings and the variation of surface displacement. The linear development law of crack width under the influence of the ratio of building length to height and the surface deformation can also be obtained. (3) according to the influence of different positions of subsidence area on buildings, the theoretical calculation method is used. The feasibility of building new buildings on the surface of the actual engineering area is analyzed. The above analysis and research expounded the influence mechanism of the goaf house damage by the influence of the surface, which is of great significance for guiding the design of building construction reinforcement and anti-deformation in goaf.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU746
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