钻孔灌注桩正反循环泥浆护壁对孔径的影响研究

王强; 赵春风; 赵程; 薛金贤; 楼云

钻孔灌注桩正反循环泥浆护壁对孔径的影响研究 English Version

王强^1,2,,
赵春风^1,2,
赵程^1,2,
薛金贤³,
楼云⁴

1. 同济大学岩土及地下工程教育部重点实验室,上海 200092 ； 2. 同济大学地下建筑与工程系,上海 200092 ； 3. 深圳高速工程顾问有限公司 ,广东深圳 518000 ； 4. 浙江省交通运输厅质量监督局 ,浙江杭州 311215

基金项目: 国家自然科学基金项目 (40972180) ；上海市重点学科建设项目( B308)；光华同济大学土木工程学院基金 - 应用基础研究项目( 0200165023)

详细信息

作者简介:
王强 (1986 – ) ,男,四川泸州人,硕士研究生, 主要从事岩土工程方面的研究。

中图分类号: TU473.1
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出版历程
- 收稿日期: 2011-08-01
- 发布日期: 2011-12-06

Influence of normal and reverse mud circulations on hole diameter of cast-in-situ bored pile s

1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 3. Shenzhen Expressway Engineering Consulting Co., Ltd., Shenzhen 518000, China; 4. Zhejiang Transportation Hall Quality Supervision Bureau, Hangzhou 311215, China

摘要

摘要: 在软土地区,钻孔灌注桩的成孔过程都要采用泥浆护壁。结合上海浦东某高层住宅小区钻孔灌注桩孔径实测数据 ,对成桩过程中两种泥浆循环方式对孔径的影响进行了对比研究, 并对其机理进行了探讨。研究结果表明：在上海软土地区 , 采用正循环泥浆护壁能在一定程度上增大孔壁粗糙度 ,扩大桩孔直径,对增加桩的承载力有一定作用。
- 桩基工程 /
- 钻孔灌注桩 /
- 泥浆 /
- 正反循环 /
- 孔径
Abstract: In soft soil area it is necessary to take use of mud protection in the forming process of cast-in-situ bored piles. Based on the measured data of cast-in-situ bored piles of a high-rise residential in Pudong District of Shanghai, the influence of two kinds of mud circulations on the diameter of pile hole is studied, and its mechanism is discussed. The results show that in Shanghai, the soft soil area, the normal mud circulation rather than the reverse mud circulation can increase the roughness of hole wall and expand the diameter of pile hole to some extent, and it plays a role in increasing the bearing capacity of the piles.
- pile foundation /
- cast-in-situ bored pile /
- mud /
- normal and reverse circulation /
- hole diameter

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参考文献(9)

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