[1]李振华,徐明刚,袁 路,等.管井及轻型井点降水在江心洲平原的应用[J].江苏水利,2018,(06):50-53.
　LI Zhenhua,XU Minggang,YUAN Lu,et al.Application of tube well dewatering and light well point drainage in Jiangxinzhou plain[J].JIANGSU WATER RESOURCES,2018,(06):50-53.
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管井及轻型井点降水在江心洲平原的应用()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2018年06期
页码:
50-53
栏目:
工程建设
出版日期:
2018-06-15

文章信息/Info

Title:
Application of tube well dewatering and light well point drainage in Jiangxinzhou plain
文章编号:
1007-7839（2018）06-0050-04
作者:
李振华; 徐明刚; 袁 路; 薛 松; 孙 凡
江苏省水利建设工程有限公司，江苏 扬州 225009
Author(s):
LI Zhenhua; XU Minggang; YUAN Lu; XUE Song; SUN Fan
Jiangsu Hydraulic Engineering Construction Co.，Ltd.，Yangzhou 225009，Jiangsu
关键词:
管井降水; 轻型井点降水; 层间水; 渗透系数
Keywords:
tube well dewatering; light well point drainage; interlayer water; permeability coefficient
分类号:
TV52
文献标志码:
B
摘要:
工程地处扬州市瓜洲镇，地貌为江心洲平原区，底板位于第四层灰、青灰色轻粉质砂壤土夹粉砂、轻粉质壤土上，土层渗透系数大、地下水丰富，基坑周边水源补给丰沛，透水层厚度大，同时工程土层具有夹层互层结构，地基的渗流稳定问题为工程的主要工程地质问题之一。对于土层渗透系数大，通常采取管井降水，将基坑范围内水位降至满足施工要求；而对于泵站地下连续墙内的夹层互层结构的水，如果通过附近的管井降水，需要通过地连墙绕渗，周期较长，而采用轻型井点降水，可以达到缩短降水周期、节约成本的功效。
Abstract:
The project is located in Guazhou Town of Yangzhou City, and the landform is Jiangxinzhou Plain area.The floor is located on the fourth layers of gray, light gray silt sandy loam soil with silt and light silt loam.The permeability coefficient of the soil layer is large and the groundwater is rich.The water source around the foundation pit is abundant and the thickness of the permeable layer is large.At the same time, the soil layer has interlayer structure and foundation, and the seepage stability is one of the main engineering geological problems.When the permeability coefficient of the soil layer is large, the tube well dewatering is usually adopted to reduce the water level in the foundation pit to meet the construction requirements.For the interlayer structure of the water in the underground continuous wall of the pumping station, if precipitation occurs through a nearby tube well, it needs to be penetrated through the wall and the cycle is longer.However, light well point precipitation can shorten the precipitation cycle and save cost.

参考文献/References:

[1] 王佩云，肖绪文，等.建筑施工手册[M].北京：《建筑施工手册》第5 版编委会，2013：599-600.
[2] 中华人民共和国国家标准.建筑地基基础工程施工质量验收规范：GB 50202-2002[S].北京：中华人民共和国建设部，2002：4.
[3] 刘清华.浅谈管井的概念原理及其在施工中应用[J].水利建设与管理，2010（02）：25-33.
[4] 汪亮，吴达，李盛.井管与井点相结合的降排水方案在降低地下水位中的应用[J].江苏水利，2016 （09）：9-12.

备注/Memo

备注/Memo:
收稿日期：2018-03-14
作者简介：李振华（1982-），男，本科，工程师，主要从事水利工程建设工作。
更新日期/Last Update: 2018-06-15