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主要介绍了管井井点与真空轻型井点两者相结合在饱和含黏性土中粗砂地质条件下深基坑降水中的应用。基坑土质主要为黏性中粗砂,开挖深度达14.2 m;工程初始首先使用管井降水,后期结合现场实际情况增设真空井点降水;管井降水辅以真空井点降水使用效果良好,有效地解决该施工环境下降水这一难题。
This paper mainly introduces the application of combination of tube well point and vacuum light well point in dewatering of deep foundation pit under the condition of coarse sand with saturated clayey soil. The soil of the foundation pit is mainly of cohesive medium coarse sand with an excavation depth of 14.2 m. At the beginning of the project, tube well dewatering is used first, and vacuum dew point precipitation is added in combination with the actual situation at the later stage. Tube well dewatering is complemented by vacuum well point dewatering, which is effective and effective Solve the problem of precipitation in the construction environment.