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在汛期水库高水位时,由于土坝质量或管理运用不当等原因,在土坝的背水坡或下游坝址处往往出现洞眼漏水现象,对土坝安全威胁很大。抢堵漏洞的进水口最为关键。另外,在漏洞出口抢筑反滤围井,以平衡水压力,减少渗水速度,只让清水流出,不让坝内土粒随水流走,也是有效措施。关于土坝漏洞抢堵常用措施有以下几种:1.有条件时,可将水库放空处理。对坝体漏水处理,可在迎水面增做防渗斜墙。在迎水坡由上而下、由里到外倾倒黏土,一般长度最
During flood season, the water level of reservoirs is high. Due to the improper quality of the earth dam or its improper management, hole leaks often occur at the back slope of the earth dam or downstream dam sites, posing a great threat to the dam safety. Grab plugging the water inlet is the most critical. In addition, the loopholes in the export rush to build anti-filtration wells to balance the water pressure to reduce water seepage rate, leaving only the water outflow, not to allow the soil with the dam to go, but also effective measures. About lobar loopholes loopholes grab common measures are the following: 1. When conditions permit, the reservoir can be venting treatment. Leakage treatment of the dam, flood control surface can be made to increase anti-seepage wall. In the water slope from top to bottom, dumping clay from the inside to outside, the general length of the most