论文部分内容阅读
小浪底工程中的左岸山体中布置了由15个洞室组成的洞群,且在转弯段洞室之间成斜交;电站的地下厂房是由三大洞室和垂直的进出水管组成的纵横交叉洞室体系。本文采用三维非线性有限单元法,考虑了材料的弹塑性性质、断层、软弱夹层等的情况,以及衬砌、锚杆的作用及施工过程,对地下洞群的进口段、转弯段及地下厂房进行了详细的计算分析,得出了位移、变形、应力、塑性区、开裂区及断层、夹层状态等成果,并作了变形和稳定性等分析,为地下洞群方案和地下厂房方案的确立提供了重要的参考依据。
In the left bank of Xiaolangdi Project, a group of 15 caverns are arranged in the left bank of the Xiaolangdi project and are inclined between the turn caverns; the underground power plant is a vertical and horizontal cross-hole consisting of three large caverns and vertical inlet and outlet pipes Room system. In this paper, three-dimensional nonlinear finite element method is adopted to consider the material’s elasto-plastic properties, faults and weak intercalations, as well as the lining and bolt action and construction process. The imported sections, turning sections and underground buildings of underground caves After detailed calculation and analysis, the results of displacement, deformation, stress, plastic zone, dehiscence zone, fault and interlayer state are obtained, and the deformation and stability analysis are also made for the establishment of underground caverns scheme and underground workshop scheme An important reference.