Study of weathering grouping and strength characteristics of Wudang group schist based on point load testing

ZHANG Yu; GAN Quan; YU Fei; CHEN Shan-xiong

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Study of weathering grouping and strength characteristics of Wudang group schist based on point load testing

更新时间：2026-06-25

- Study of weathering grouping and strength characteristics of Wudang group schist based on point load testing
- Vol. 33, Issue S1, (2012)
- 作者机构：
  
  1. 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,武汉,430071
  2. 中机三勘岩土工程有限公司,武汉,430030
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU452
- Online First：21 September 2012，
  
  Published：2012
- 稿件说明：
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ZHANG Yu, GAN Quan, YU Fei, et al. Study of weathering grouping and strength characteristics of Wudang group schist based on point load testing[J]. 2012, 33(S1).
DOI：

ZHANG Yu, GAN Quan, YU Fei, et al. Study of weathering grouping and strength characteristics of Wudang group schist based on point load testing[J]. 2012, 33(S1). DOI：

摘要

针对中元古界武当山群（Pt2wd）片岩

开展大量的现场点荷载试验，基于概率统计的方法，确定全风化、强风化、中等风化（Pt2wd）片岩的点荷载强度（垂直岩层）的均值、方差以及分组区间。通过开展沿片岩不同层面方向的点荷载试验，分析平行岩层和垂直岩层点荷载强度的相关性，确定该种片岩的各向异性指数；结合室内单轴抗压强度的试验结果，给出适用于武当群片岩的点荷载强度IS与单轴抗压强度Rc的经验关系式

Abstract

A series of on-site point load tests for the Middle Proterozoic Wudangshan Group (Pt2wd) schist are carried out based on the probability theory and statistics

to determine the grouping interval of the point load strength (vertical rock) of the completely

strongly and moderately weathered (Pt2wd) schist. The point load tests at different levels along the schist direction are carried out; the correlation of point load strength between parallel to the rock and vertical rock is analyzed; and the anisotropy index Ia of the schist is determined; combined with the results of uniaxial compressive strength test indoor

an empirical correlation relationship of the point load strength IS and uniaxial compressive strength Rc of Wudang Group schist is given.

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