摘要
对高流速、管道型岩溶漏水问题 ,通常采用可控制凝固时间的化学浆材进行堵漏灌浆 ,但存在价格昂贵、污染环境、影响施工人员健康、胶凝时间难以控制等问题。通过高坝洲工程深孔导墙导4 ～导5及 15～ 16号坝段岩溶漏水通道的堵漏实践 ,总结出一种行之有效的水流控制措施及水泥灌浆堵漏方法 。
The two banks of the damsite of the GHP are situated on the soluble dolomite rock and limestone, so that the karst is developed and many large sized parallel flow direction faults occur in the area. According to the geological exploration and proof, a long impervious curtain should be arranged in two banks. On the basis of analyzing the relationship of the dam axis and the seepage control route in the karst area, this paper describes the selection of seepage control route in the right bank of the GHP. In the light of optimal design of impervious curtains in two banks of GHP, this paper puts forward the optimal design principles and measures of ' grouting holes are distributed by stages and the hole density is gradually increased'. The practice of impoundment operation for two years showed that the impervious curtains in two banks has played effective role in seepage control.
出处
《水力发电》
北大核心
2002年第3期47-49,共3页
Water Power
关键词
基坑
涌水
堵漏
水泥灌浆
高坝洲水电站
seepage of reservoir, seepage control route, dam axis, impervious curtain, optimal design, GHS
