Local micro and extension precipitation construction method for deep foundation pit

• Main Authors: MA XINYING, LIU HAITAO, YAN HAITAO, XUE SHAOYAN, ZHANG FENGYU, AN XUEBING
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: CESSPOOLS; EMBANKMENTS; EXCAVATIONS; FIXED CONSTRUCTIONS; FOUNDATIONS; HYDRAULIC ENGINEERING; SEWERAGE; SEWERS; SOIL SHIFTING; UNDERGROUND OR UNDERWATER STRUCTURES; WATER SUPPLY

The invention relates to a local micro and extension precipitation construction method for a deep foundation pit, which belongs to the technical field of building construction and comprises the following steps: S1, checking a line of the foundation pit; s2, positioning a water collecting well; s3, a water collecting well is excavated; s4, embedding a water suction pipe and an exhaust pipe; s5, a water suction pipe is connected with a self-priming pump; s6, a U-shaped PVC pipe is buried; s7, backfilling and covering a slurry-retaining plastic film; and S8, starting a self-priming pump to carry out precipitation operation. The device has the effects that the rainfall difficulty is reduced, and local minimization and extended rainfall are facilitated. 本申请涉及一种深基坑局部微型及延展降水施工工法，属于建筑施工技术领域，其包括以下步骤：S1：基坑验线；S2：集水井定位；S3：集水井开挖；S4：埋设吸水管、排气管；S5：将吸水管与自吸泵相连接；S6：埋设U型PVC管；S7：回填、上覆保浆塑料薄膜，S8：启动自吸泵即可进行降水作业。本申请具有降低降水难度、便于进行局部微型及延展降水的效果。