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Application of equatorial projection in crossing design of Jishixia tunnels
Author(s): REN Wei
Pages: 18-
20
Year: 2008
Issue:
3
Journal: NORTHWEST CHINA HYDROPOWER
Keyword: 赤平投影法; 最大可动域; 关键块体;
Abstract: 针对积石峡水电站泄洪洞与导流洞交叉段大洞室,采用赤平投影法对洞室与岩体不同产状裂隙面组合形成的楔形体进行稳定性分析,通过判别关键块体,计算净滑动力,确定最终的可能可动块体及关键块体,选取最不利断面进行计算分析,绘制该断面可能最大可动域,确定锚固措施.对洞室锚固施工提供了可靠的设计依据,确保了施工安全.
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