土工基础

›› 2019, Vol. 33 ›› Issue (5): 563-566.

• 工程实录 • 上一篇    下一篇

旋挖桩在深厚富水砂层中的施工应用

王冠军1，余承清1，李廷芥1，2   

  1. （1.广州粤嘉工程技术有限公司，广州 510000;2.中国科学院武汉岩土力学研究所，武汉 430071）
  • 收稿日期:2019-07-17 修回日期:2019-09-06 出版日期:2019-10-20 发布日期:2019-10-22
  • 作者简介:王冠军(1977-)，男，工程师，一级建造师，研究方向为地基工程管理与实践。

Application of the Rotary Excavated Concrete Piles in Deep Saturated Sand Layer

WANG Guanjun1, YU Chengqing1, LI Tingjie1,2   

  1. (1.Guangzhou Yuejia Engineering Technology Co., Ltd., Guangzhou 510000;
    2.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071)
  • Received:2019-07-17 Revised:2019-09-06 Online:2019-10-20 Published:2019-10-22

摘要： 随着建筑业的快速发展，旋挖灌注桩在工程中的应用越来越广泛，其技术也日趋成熟。但在深厚富水砂层中旋挖桩施工常会遇到各种问题，事故频发，致使施工成本增加，效率降低。结合某深厚砂层桩基础施工遇到的问题，通过边施工边探索，分析出项目的塌孔区域分布规律，并采取相对应措施，节约了较大成本和缩短了工期。

关键词: 旋挖桩, 深厚富水砂层, 塌孔区域, 分布规律

Abstract: With the rapid development of construction industry, the application of rotary excavated concrete piles in the engineering projects is more and more popular. With the time, the installation technology becomes more and more mature. However, when drilling in the deep and saturated sand layers, the rotary excavated concrete pile construction often encounters with various problems and frequent accidents, and results in the increased construction cost and reduced efficiency. Combined with the problems encountered in the construction of deep foundation with a deep and saturated sand layer, the likelyhood of borehole caving zones were summarized through construction and the correspondent measures were implemented so that a large construction cost and schedule savings could be achieved.

Key words: Rotary Excavated Concrete Piles, Deep Saturated Sand Layer, Caving Zone, Distribution