预应力高强混凝土矩形支护桩在基坑工程中的应用

杨波; 黄广龙; 赵升峰; 李书波; 周文苑

预应力高强混凝土矩形支护桩在基坑工程中的应用 English Version

(1.江苏今迈工程勘察有限公司，江苏南京 210005；2. 南京工业大学交通学院，江苏南京 210009)

详细信息

作者简介:
杨波(1986– )，女，四川内江人，硕士，从事岩土工程设计。

中图分类号: TU473
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

Application of rectangular prestressed high strength concrete supporting pilesin excavation engineering

(1. Jiangsu Jinmai Engineering Investigation Co.,Ltd., Nanjing 210005, China; 2. College of Transportation Science & Engineering, Nanjing University of Technology, Nanjing 210009, China)

摘要

摘要: 预应力高强混凝土矩形支护桩（简称矩形支护桩）是近几年新开发的桩型，截面外方内圆。就其截面形式而言，相较于管桩和方桩，其抗弯刚度有较大的提高，更适合于以受水平力为主的基坑支护工程。将矩形支护桩应用于大面积、深开挖的软土基坑中，结果表明，基坑运营状况良好，支护结构变形及桩内力均在可控范围内，不仅在安全上有保证，并在很大程度上提高了基坑支护的经济性及施工便捷性，对预应力结构矩形支护桩在基坑工程中的应用有一定的参考价值。
- 预应力结构 /
- 矩形支护桩 /
- 基坑工程 /
- 变形监测
Abstract: A new type of pile with rectangle and internal circular cross section is developed in recent years, which is named prestressed high strength concrete rectangular supporting pile (rectangular supporting pile for short). Compared with that of the pipe pile and square pile, the flexural stiffness of rectangular supporting pile is greatly improved in cross-section form. Thus it is more suitable to used as supporting structures in the excavation engineering in which the pile mainly bears horizontal force. An engineering case of the rectangular supporting piles used as the supporting structures of the excavation in soft soils is introduced, and the excavation is in good condition during its construction. The monitoring results indicate that the deformation of the supporting structures and the internal force of piles are in the controllable range. So the rectangular supporting piles have security assurance and greatly improve the economy and convenience for the pit excavation. Therefore this case study and the results may provide a reference for the application of rectangular supporting piles in excavation.
- prestressed structure /
- rectangular supporting pile /
- excavation engineering /
- deformation monitoring

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参考文献(14)

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