A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to the field of foundation pit dewatering, in particular to a foundation pit dewatering and drainage construction method which comprises the following steps that S1, a site is leveled and compacted; s2, determining hole positions; s3, constructing a downcast tube well; the downcast tube well comprises an outer-layer steel protection tube and an inner-layer steel filter tube, and outer-layer water filter holes are formed in the outer-layer steel protection tube in a penetrating mode. Inner-layer water filtering holes are formed in the inner-layer steel filtering pipe in a penetrating manner; s31, the outer-layer steel protection pipe is driven into the soil body; s32, the outer-layer steel protection pipe is filled with bottom filler; s33, inserting the inner-layer steel filter pipe into the bottom filler; s34, the space between the inner-layer steel filter pipe and the outer-layer steel protective pipe is filled with filter filler; s4, placing a water suction pump. S5, pulling out the inner-layer steel filter pipe and the outer-layer steel protective pipe; and S6, the well hole left after the outer-layer steel protection pipe is pulled out is backfilled with filling soil, and the filling soil is tamped. The method has the advantages that hole collapse of the inner wall of the tube well when the tube well is excavated in a field with poor soil cohesive force and high underground water level is reduced, and smooth excavation of the tube well is guaranteed.
本申请涉及基坑降水领域,尤其涉及一种基坑降排水施工方法，其包括以下步骤：S1、对场地进行整平和压实；S2、确定孔位；S3、施工降水管井；降水管井包括外层钢护管和内层钢滤管，外层钢护管贯穿开设有外层滤水孔；内层钢滤管贯穿开设有内层滤水孔；S31、将外层钢护管打入土体；S32、在外层钢护管内填充底部填料；S33、将内层钢滤管插入底部填料；S34、在内层钢滤管与外层钢护管之间填充过滤填料；S4、放置抽水泵。S5、将内层钢滤管和外层钢护管拔出；S6、向外层钢护管拔出后留下的井孔内回填填土并夯实。本申请具有减少在土体粘聚力较差且地下水水位较高的场地开挖管井时，管井内壁塌孔情况的发生，确保管井的顺利开挖的效果。
The invention relates to the field of foundation pit dewatering, in particular to a foundation pit dewatering and drainage construction method which comprises the following steps that S1, a site is leveled and compacted; s2, determining hole positions; s3, constructing a downcast tube well; the downcast tube well comprises an outer-layer steel protection tube and an inner-layer steel filter tube, and outer-layer water filter holes are formed in the outer-layer steel protection tube in a penetrating mode. Inner-layer water filtering holes are formed in the inner-layer steel filtering pipe in a penetrating manner; s31, the outer-layer steel protection pipe is driven into the soil body; s32, the outer-layer steel protection pipe is filled with bottom filler; s33, inserting the inner-layer steel filter pipe into the bottom filler; s34, the space between the inner-layer steel filter pipe and the outer-layer steel protective pipe is filled with filter filler; s4, placing a water suction pump. S5, pulling out the inner-layer steel filter pipe and the outer-layer steel protective pipe; and S6, the well hole left after the outer-layer steel protection pipe is pulled out is backfilled with filling soil, and the filling soil is tamped. The method has the advantages that hole collapse of the inner wall of the tube well when the tube well is excavated in a field with poor soil cohesive force and high underground water level is reduced, and smooth excavation of the tube well is guaranteed.
本申请涉及基坑降水领域,尤其涉及一种基坑降排水施工方法，其包括以下步骤：S1、对场地进行整平和压实；S2、确定孔位；S3、施工降水管井；降水管井包括外层钢护管和内层钢滤管，外层钢护管贯穿开设有外层滤水孔；内层钢滤管贯穿开设有内层滤水孔；S31、将外层钢护管打入土体；S32、在外层钢护管内填充底部填料；S33、将内层钢滤管插入底部填料；S34、在内层钢滤管与外层钢护管之间填充过滤填料；S4、放置抽水泵。S5、将内层钢滤管和外层钢护管拔出；S6、向外层钢护管拔出后留下的井孔内回填填土并夯实。本申请具有减少在土体粘聚力较差且地下水水位较高的场地开挖管井时，管井内壁塌孔情况的发生，确保管井的顺利开挖的效果。
Foundation pit dewatering and drainage construction method
一种基坑降排水施工方法
WANG TAO (author)
2023-12-05
Patent
Electronic Resource
Chinese
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