云南水力发电2026，Vol.42Issue(6)：56-59,72,5.DOI:10.3969/j.issn.1006-3951.2026.06.014
低压固结灌浆协同锚索控制尾水隧洞软岩大变形机制
Mechanism of Large Deformation of Soft Rock in Tailrace Tunnel Controlled by Low Pressure Consolidation Grouting and Collaborative Anchor Cable
单亚洲 1杨柳 2袁文杰 1宋金闻1
作者信息
- 1. 中国水利水电第十四工程局有限公司,云南 昆明 650200
- 2. 华能澜沧江水电股份有限公司,云南 昆明 650214
- 折叠
摘要
Abstract
In response to the problem of large deformation of soft rock in the tailwater tunnel of a hydropower station,this paper systematically studies the mechanism of the collaborative control technology of low-pressure consolidation grouting and prestressed anchor cables.By analyzing the deformation characteristics of soft rock,the implementation effect of reinforcement schemes,and safety monitoring data,the synergistic principle of low-pressure consolidation grouting improving the mechanical properties of surrounding rock and prestressed anchor cable restraining surrounding rock deformation was revealed,which can increase the wave velocity of surrounding rock by more than 11%and effectively enhance the integrity of rock mass.The prestressed anchor cable controls the deformation rate of the surrounding rock within 0.5mm/d by applying active support force.The synergistic effect of the two forms an integrated support system of"reinforcement restraint",significantly improving the stability of soft rock tunnels.关键词
尾水隧洞/软岩大变形/低压固结灌浆/预应力锚索/协同作用/围岩稳定Key words
tailwater tunnel/large deformation of soft rock/low pressure consolidation grouting/prestressed anchor cable/synergy/stability of surrounding rock分类
建筑与水利引用本文复制引用
单亚洲,杨柳,袁文杰,宋金闻..低压固结灌浆协同锚索控制尾水隧洞软岩大变形机制[J].云南水力发电,2026,42(6):56-59,72,5.
