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1.现场概况本工程位于秦皇岛市,地下稳定水位标高介于-0.900~-5.800m,属于裂隙水,裂隙水的顶标高高于JK-2基础底板顶标高,裂隙水无法在防水施工前疏干,水面标高基本保持在-9.600m左右,为保证防水工程质量,需对地下水进行降排水处理。2.防水现状长期以来,深基坑基础防水施工大多采用SBS柔性防水卷材,往往因为降水效果不太理想或由于上层滞水无法得到很好的控
1. Site Overview The project is located in Qinhuangdao City, the underground stable water level elevation between -0.900 ~ -5.800m, belonging to fissure water, fissure water top elevation is higher than the JK-2 foundation floor top elevation, fissure water can not be waterproof before construction sparse Dry, water surface elevation remained at -9.600m or so, in order to ensure the quality of waterproofing projects, the need for groundwater drainage. 2. Waterproof status For a long time, most of the deep foundation pit waterproof construction using SBS flexible waterproofing membrane, often because of the precipitation effect is not ideal or because the upper stagnant water can not be well controlled