Laboratory Study on Strength Characteristics of Expansive Mudstone

Wang Tao; Cao Xueshan; Zhang Rongkuan

doi:10.3969/j.issn.1007-2993.2019.01.009

Volume 33 Issue 1

Jul. 2021

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Wang Tao, Cao Xueshan, Zhang Rongkuan. Laboratory Study on Strength Characteristics of Expansive Mudstone[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(1): 36-39. doi: 10.3969/j.issn.1007-2993.2019.01.009

Citation:

Wang Tao, Cao Xueshan, Zhang Rongkuan. Laboratory Study on Strength Characteristics of Expansive Mudstone[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2019, 33(1): 36-39. doi: 10.3969/j.issn.1007-2993.2019.01.009

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Laboratory Study on Strength Characteristics of Expansive Mudstone

doi: 10.3969/j.issn.1007-2993.2019.01.009

1. School of Earth Science and Engineering, Nanjing University, Nanjing 210093, Jiangsu, China;
2. Institute of Road and Railway, Hohai University, Nanjing 210098, Jiangsu, China;
3. China Design Group Co., Ltd, Nanjing 210014, Jiangsu, China

Received Date: 2018-10-31
Available Online: 2021-07-06

Abstract

Abstract

The strength variation of expansive mudstone remolded samples was studied by indoor tests after water swelling under different initial states and pressures.The research results show that the cohesion of remolded expansive mudstone increases firstly and then decreases with the raising of moisture content.The cohesive force will peak when the moisture content is about 18% after water absorption saturation.The cohesion and the internal friction angle of the remolded expansive mudstone increase with the raising of overlying pressure,and their relationship approximately follows a power function.
- expansive mudstone,
- strength characteristics,
- moisture content,
- overlying pressure