土工基础

土工基础 ›› 2024, Vol. 38 ›› Issue (4): 573-577.

• 工程实录 • 上一篇    下一篇

高水位下粉土地基轻型井点降水技术研究

靳 涛1，李雪飞1，刘大召1，荣传彪2，谢阳发3，朱 秋4   

  1. (1.中国建筑第五工程局有限公司，长沙 410000；2.河南理工大学土木工程学院，河南焦作 454000；3.湖南交通工程学院，湖南衡阳 421000；4．中国建筑第一工程局第二建筑有限公司，北京 102600)
  • 收稿日期:2022-10-24 修回日期:2022-11-01 出版日期:2024-08-31 发布日期:2024-09-17
  • 作者简介:靳涛(1995-)，男，硕士，助理工程师，研究方向为基础设计与结构抗震。
  • 基金资助:
    中国建筑第五工程局有限公司河南分公司郑州分公司课题(2028482)

Study on Light Well Point Dewatering Technology in Silty Soils under High Groundwater Level

JIN Tao1, LI Xuefei1, LIU Dazhao1, RONG Chuanbiao2, XIE Yangfa3， ZHU Qiu4   

  1. (1.China Construction Fifth Engineering Bureau Henan Branch Zhengzhou, 450000；
    2.School of Civil Engineering, Henan Polytechnic University, Jiaozuo 454000；
    3.Hunan Institute of Traffic Engineering, Hengyang 421000；
    4.China Construction First Engineering Bureau Group No. 2 Construction Co. Ltd., Beijing 102600)
  • Received:2022-10-24 Revised:2022-11-01 Online:2024-08-31 Published:2024-09-17

摘要： 高水位会带来一系列岩土工程的问题，特别是对于降水量大、地下水变化大且地质不良的地区，更会对地下建(构)带来更大挑战。结合高水位且地基为粉土的工程实例，首先对比不同降水技术的优缺点，选择科学有效的降水处理技术，然后阐述其施工工艺和注意事项，对降水效果进行了分析，最后跟进了后期的沉降监测，为以后同类型的建筑工程积累更多的技术应用经验。研究结果表明：根据实际情况进行合理安排，轻型井点降水在本项目中降水效果良好，可以满足后续施工；对后期的沉降进行了监测，后期监测均满足规范要求。

关键词: 高水位, 粉土地基, 轻型井点降水, 降水效果, 沉降监测

Abstract: High groundwater level will bring a series of geotechnical engineering hazards, especially for areas with large dewatering requirements, large groundwater changes and poor geology, and it will bring greater challenges to the underground construction. Combined with the engineering examples of the high groundwater level and the silty soil, at first, the advantages and disadvantages of different dewatering methods were compared, scientific and effective dewatering treatment technologies were selected, and then the construction process and precautions were evaluated, the dewater effect was analyzed, and finally the later settlement monitoring was followed up, so as to accumulate more technical application experience for the same type of construction projects in the future. The results show that, according to the actual site conditions, the dewater of the light well point is very effective in this project, and it can meet the subsequent construction. The post settlement was monitored, and the construction monitoring satisfied the requirements of the specification.

Key words: High Groundwater Level, Silty Soils, Light well Point Dewatering, Dewater Effect, Settlement Monitoring

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