摘要
通过用块体理论计算洞周关键块体净滑力,论证了阜康抽水蓄能电站厂房轴线的方位是比较合适的,但宜向北方向偏转;从随机块体和定位块体稳定初步分析结果来看,断层在地下厂房中形成大规模不稳定的块体可能性较小,个别块体在抗剪(纯摩)安全系数小于1.0,但在系统锚固措施下或局部加强支护、略加考虑抗剪断效应,其安全系数均满足要求,说明本阶段设计拟定的系统锚固措施是可行的,也是合理的。
Through the calculation of the net sliding forces of the key blocks by the block theory,the suitability of the direction of the powerhouse axis of Fukang Pumped Storage Power Plant is demonstrated. The powerhouse axis should turn to northern direction,from the primary analysis on the stability of random blocks and positioning blocks,possibility of large- scaled and unstable block to be formed by fault in the powerhouse is little. The safety factors of individual blocks for shearing（ pure friction） are lower than 1. 0,In condition of provision of the systematic anchoring measures,or with local reinforcing support and slightly in consideration of rupture- resistance effect,the safety factor satisfies requirement. This presents that the proposed systematic anchoring measures at this stage is feasible and reasonable.
出处
《西北水电》
2015年第1期20-24,共5页
Northwest Hydropower
关键词
阜康抽水蓄能电站
地下厂房
块体理论
围岩稳定分析
Fukang Pumped Storage Power Plant
underground powerhouse
block theory
analysis on stability of surrounding rock
