水泥锚固剂在漫湾水电站地下洞室预应力锚杆施工中的应用

Application of cement anchor agent to prestressed anchor bars construction in underground openings of Manwan Hydropower Station

介绍了水泥锚固剂室内试验、扭力扳手率定的成果,并用于指导漫湾地下厂房预应力锚杆的施工。根据多点位移计及锚杆应力计对变形监测资料显示,主厂房顶拱变形迅速收敛,围岩快速自稳效果明显。

The laboratory test of cement anchor agent and the calibration by twisting spanner are described;the result is applied to direct the construction of prestressed anchor bars in Manwan underground powerhouse,the monitored data of surrounding rock deformation at the vault of power house by displacemeters and dynamometers show that the rock deformation of the vault converged quickly,the self-supporting result of surrounding rock is obvious.