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一、前言葛洲坝水利枢纽第一期工程主体建筑物的某些部位,止、排水系统的质量对建筑物的安全极为重要。为满足建筑物安全运行的要求,对某些重要部位的止、排水设施的施工质量进行了检查处理。对检查发现的质量事故采取了多种方案处理:(1)爆破抽槽重做止水。计挖填混凝土约18.8立米;(2)灌注弹性聚氨醋,计灌缝约一万零四百米,耗用浆材约13.5吨;(3)扩缝回填弹性聚氨酯恢复止水。扩缝回填缝长约二千米,耗用浆材约5.3吨;(4)掏挖疏通排水槽、排水沟,套钻排水管、排水孔等。
I. INTRODUCTION Certain parts of the main building of the first phase of the Gezhouba Dam project and the quality of the drainage system are extremely important to the safety of buildings. In order to meet the requirements of safe operation of buildings, the quality of construction of drainage and drainage facilities at certain important sites has been checked and handled. Check the quality of the accident found to take a variety of programs to deal with: (1) blasting tank redo water stop. Calculated about 18.8 cubic meters of concrete dredging; (2) flexible polyurethane injection irrigation, irrigation gauge about 1040 meters, consumption of pulp about 13.5 tons; (3) expansion of the backfill elastic polyurethane to restore water stop. The expansion of backfill seam length of about two kilometers, consume about 5.3 tons of pulp; (4) excavation dredge drainage ditches, drainage ditches, casing drainage, drainage holes and so on.