盘石头水库坝基地质勘探孔的处理

Handling for the Geological Prospecting Holes in the Dam Foundation of Panshitou Reservoir

盘石头水库上游围堰截流闭气后,发现坝基河床处有两涌水地质勘探孔,涌水量较大,影响了大坝正常施工,需在较短时间内封堵完毕。本文简介了采用纯压式灌浆对大孔径涌水地质孔的封堵施工,简便易行,效果良好。

Water outlet from two geological prospecting holes in the river bed the dam foundation located were found after the upstream coffer of Panshitou reservoir was obturated, the mount of water has effected the construction of the dam, so the holes must be obturated in short period. This paper briefly introduces the construction with pure pressing grouting obturates the wide aperture geologic exploration hole, which is easier and good effictiveness.