土工基础

›› 2013, Vol. 27 ›› Issue (1): 17-20.

• 工程实录 • 上一篇    下一篇

武汉中心深基坑工程坑中坑稳定性分析

孙晓英1，冯晓腊2，徐 升2   

  1. （1.水利部小浪底水利枢纽建设管理局，郑州 450004；2.中国地质大学（武汉）工程学院，武汉 430074）
  • 收稿日期:2012-06-06 出版日期:2013-02-28 发布日期:2013-03-05
  • 作者简介:孙晓英（1968-），男，硕士，高级工程师，注册一级建造师、注册安全工程师、注册造价工程师，研究方向为水利水电工程的建设管理和施工管理。

Stability Evaluation of the Nested Deep Excavations for Wuhan Centre Foundation

SUN Xiaoying1, FENG Xiaola2, XU Sheng2   

  1. (1.Xiaolangdi Dam Project Construction and Management Bureau, Ministry of Water Resources, Zhengzhou, 450004;2.School of Engineering, China University of Geosciences, Wuhan, 430074)  
  • Received:2012-06-06 Online:2013-02-28 Published:2013-03-05

摘要： 分析了武汉中心深基坑工程坑中坑开挖区域支护桩桩间粉细砂土层在基坑降水条件下的强度和稳定性问题，从土体含水量和粘土夹层及其透镜体两个角度研究了其对粉细砂层岩土体性状的影响，并提出了类似基坑降水后土体开挖和支护稳定的建议。

关键词: 深基坑, 含水量, 粘性土, 稳定性

Abstract: This paper presents a case history of the deep excavations for WuhanCenter foundation construction. The strength and stability aspects of the silty fine sand within the soldier piles in the excavated area within the nested deep excavations under the dewatering conditions are evaluated. The impact of the soil moisture content and clayey lenses on the properties of the insitu silty fine sand is examined. The conclusions of the similar excavation under the dewatering conditions are reached.

Key words: Deep Excavations, Soil Moisture Content, Cohesive Soils, Excavation Stability