土工基础

›› 2017, Vol. 31 ›› Issue (1): 89-91.

• 工程实录 • 上一篇    下一篇

嵌岩桩侧摩阻力的预测研究

陈文波   

  1. （内蒙古电力勘测设计院有限责任公司，呼和浩特 010020）
  • 收稿日期:2016-05-16 修回日期:2016-06-03 出版日期:2017-02-20 发布日期:2017-02-24
  • 作者简介:陈文波（1982-），男，工程师，研究方向为岩土工程。

Prediction of the Side Shear Resistance for Drilled Shafts Socketed Into Rock

CHEN Wenbo   

  1. (Inner Mongolia Electric Power Survey & Design Institute Co., Ltd., Hohhot 010020)
  • Received:2016-05-16 Revised:2016-06-03 Online:2017-02-20 Published:2017-02-24

摘要： 对65根嵌岩桩轴向静载荷试验结果进行了对比分析，将嵌岩桩的试验结果以及收集到的文献试验数据形成实测数据库，与经验方法预测结果进行了比较。提出了嵌岩桩单位极限侧阻力的分段线性函数预测方法和平方根预测方法，线性分段函数预测方法取决于岩石类型和岩石无侧限抗压强度。

关键词: 岩土工程, 嵌岩桩, 侧摩阻力, 无侧限抗压强度

Abstract: This paper presents the case studies of static loading test results of 65 rock socketed drilled shafts. The bedrock types for the rock sockets were sedimentary rock consisting of limestone, mudstone and shale. The static load test results are compiled into a database for the evaluation of the adequacy of the current empirical method for estimating the side friction of the rock socket. By comparing the test results and various empirical prediction methods, two methods are found to be appropriate: segmental linear prediction and square root methods. It is concluded that the segmental linear prediction method is dependent on the bedrock and the unconfined compressive strength of the intact rock.

Key words: Geotechnical Engineering, Rock Socketed Drilled Shafts, Side Friction, Unconfined Compressive Strength