论文部分内容阅读
响洪甸混合式抽水蓄能电站地下厂房主厂房开挖尺寸(长×宽×高)为69.3m×21.3m×48.2m,下游布置有母线洞、地下副厂房、出线洞、通风兼排水洞等辅助洞室,右端为进厂交通洞,根据非线性有限元模拟洞室开挖和支护过程的分析结果,参照国内外已建20多个相近地质条件的地下工程洞室跨度与支护参数的关系,并参照Q系数法确定本电站地下厂房支护参数和岩壁式吊车梁悬吊锚杆参数。厂房开挖后和运行中的监测资料证实了支护参数的合理性。
The excavation dimensions (length × width × height) of the underground powerhouse of Xiang Hongdian Pumped Storage Power Station are 69.3m × 21.3m × 48.2m. There are busbar holes, underground auxiliary workshops, outlet holes, ventilation and drainage holes And other auxiliary caverns. The right end is a traffic tunnel into the plant. According to the analysis results of the tunnel excavation and support process by nonlinear finite element method, referring to the span and support of underground engineering caverns of more than 20 similar geological conditions both at home and abroad Parameters and determine the support parameters of the underground powerhouse and the parameters of the suspended rock bolt of the rock-walled crane beam with reference to the Q coefficient method. After excavation and operation of the plant monitoring data to confirm the rationality of the support parameters.