真空预压法处理软土地基的工程应用

曹杰; 郑建国; 刘智; 李波; 李攀; 杨超; 何丹; 赵海圆

doi:10.11779/CJGE2017S2031

真空预压法处理软土地基的工程应用 English Version

曹杰^{1, 2},
郑建国^{1, 2},
刘智^{1, 2},
李波³,
李攀^{1, 2},
杨超^{1, 2},
何丹^{1, 2},
赵海圆^{1, 2}

1. 机械工业勘察设计研究院有限公司,陕西西安 710043;
2. 陕西省特殊土工程性质与处理技术重点实验室,陕西西安 710043;
3. 长江科学院水利部岩土力学与工程重点实验室,湖北武汉 430010

基金项目: 国家科技支撑计划项目（2013BAJ06B00）; 陕西省科技统筹创新工程项目（2016KTZDSF03-02 ）; 国家重点研发计划项目（2017YFD0800501）; 中央级公益性科研院所基本科研业务费（CKSF2017012/YT）; 湖州市自然科学基金项目（2016GY19）

详细信息

作者简介:
曹杰(1980- ),男,陕西西安人,博士,高级工程师,从事地基处理、高填方工程方面的研究工作。E-mail：caojie801014@126.com。

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出版历程
- 收稿日期: 2017-08-01
- 发布日期: 2017-12-19

Application of vacuum preloading method in consolidating soft soil foundation

CAO Jie^{1, 2},
ZHENG Jian-guo^{1, 2},
LIU Zhi^{1, 2},
LI Bo³,
LI Pan^{1, 2},
YANG Chao^{1, 2},
HE Dan^{1, 2},
ZHAO Hai-yuan^{1, 2}

1. China JIKAN Research Institute of Engineering Investigations and Design Co., Ltd., Xi'an 710043, China;
2. Shaanxi Key Laboratory of Engineering Behavior and Foundation Treatment for Special Soil, Xi'an 710043, China;
3.Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Changjiang River Scientific Research Institute, Wuhan 430010, China

摘要

摘要: 基于软基加固现场实测资料,通过工程实例分析了真空预压技术加固软土地基时地表沉降、深层沉降、水平位移、孔隙水压力和真空度的变化规律,验证和评价真空预压法的处理效果;同时,通过区域性对比试验,探讨了真空-堆载联合预压的结合时机问题,为类似工程提供借鉴和参考。
- 真空预压 /
- 沉降 /
- 位移 /
- 软土
Abstract: Based on the field data of soft foundation reinforcement, the variation laws of soil surface settlements, stratified settlements, horizontal displacements, pore water pressures and vacuum degrees are analyzed by use of the vacuum preloading technique, the treatment effect of this method is verified. The design of the test area is carried out, and the time of the combination of vacuum and surcharge is discussed. The results may provide reference for similar projects.
- vacuum preloading /
- settlement /
- displacement /
- soft soil

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参考文献(6)

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[5]	龚晓南, 岑仰润, 李昌宁. 真空排水预压加固软土地基的研究现状及展望[C]// 地基处理理论与实践—第七届全国地基处理学术讨论会论文集. 兰州: 中国水利水电出版社,2002: 3-7. (GONG Xiao-nan, CHEN Yang-run, LI Chang-ning. Actuality and expectation in the research of vacuum preloading reinforcement of soft foundation[C]// Theory and Practice of Foundation Treatment-The 7th National Academic Conference on Foundation Treatment. Lanzhou: China Water and Power Press, 2002: 3-7. (in Chinese))
[6]	曹杰. 排水固结法在不同应力路径条件下引起软土地基沉降的初步研究[D]. 南京: 河海大学, 2006. (CAO Jie. Research on soft soil foundation settlement with drainage consolidation under varied stress paths[D]. Nanjing: Hohai University, 2006. (in Chinese))