Study on safe thickness of rock mass at end of bridge foundation’s pile in karst and worked-out mine area

ZHAO Ming-hua; CAO Wen-gui; HE Peng-xiang; YANG Ming-hui

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Study on safe thickness of rock mass at end of bridge foundation’s pile in karst and worked-out mine area

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- Study on safe thickness of rock mass at end of bridge foundation’s pile in karst and worked-out mine area
- Vol. 25, Issue 1, (2004)
- 作者机构：
  
  1. 湖南大学岩土工程研究所,湖南,长沙,410082
  2. 岳阳市公路桥梁基建总公司,湖南,岳阳,421000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU473
- Online First：15 July 2014，
  
  Published：2004
- 稿件说明：
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ZHAO Ming-hua, CAO Wen-gui, HE Peng-xiang, et al. Study on safe thickness of rock mass at end of bridge foundation’s pile in karst and worked-out mine area[J]. 2004, 25(1).
DOI：

ZHAO Ming-hua, CAO Wen-gui, HE Peng-xiang, et al. Study on safe thickness of rock mass at end of bridge foundation’s pile in karst and worked-out mine area[J]. 2004, 25(1). DOI：

摘要

通过对桩端岩层变形特性及破坏机理的深入分析，针对岩溶及采空区桥梁桩基桩端持力岩层安全厚度的确定进行了较全面的探讨，提出了一系列经济合理、安全可靠、且便于工程应用的计算公式，并对公式的使用范围、注意事项、影响因素以及其合理安全系数的选取等进行了讨论。

Abstract

Aiming at the safe thickness of the bridge pile end's support rock mass in karst and mining region

the determination method had been comprehensively probed by a thorough analysis of the distortion characteristics and the destroyed mechanism of rock mass at the end of the bridge pile. A series of economic

reasonable and safety formulas have been proposed; and they are easy to apply in engineering. Finally

the problems such as the formula's using range

notices

influencing factor and the reasonable selection of the safety factor have been discussed.

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