导流泄洪洞进口卵砾石洞段开挖工法优化研究  

Optimization study on excavation method of cobble tunnel at entrance of diversion spillway tunnel

作　　者：武子桓 WU Zi-huan

机构地区：[1]辽宁西北发电有限责任公司,辽宁沈阳110116

出　　处：《东北水利水电》2021年第11期7-9,71,共4页Water Resources & Hydropower of Northeast China

摘　　要：文章以辽宁省三湾电站导流泄洪洞为例,利用数值模拟的方法展开三台阶法与七步法施工工法的比选研究。计算结果显示,施工的最佳工法为七步法。结合模拟计算的结果和考虑工程施工成本,认为在开挖施工中采用1.0 m的开挖进尺最为有利。Taking the diversion and spillway tunnel of Sanwan Power Station in Liaoning Province as an example,the comparison between three-step method and seven-step method is studied by using numerical simulation method.The calculation results show that the best construction method is seven-step method.Combined with the results of simulation calculation and considering the construction cost,it is considered that the excavation footage of 1.0 m is the most favorable.

关 键 词：导流泄洪洞 开挖工法 三台阶法 七步法 三湾电站 

分 类 号：TV551.1[水利工程—水利水电工程]