The Shear Strength Research on Rock-Soil Mixture Material of Weathered Granite Blocks and Residual Soil after Dynamic Compaction

Zhang Kuangcheng; Zhu Jiebing; Chen Ming

doi:10.3969/j.issn.1007-2993.2016.01.004

Volume 30 Issue 1

Jul. 2021

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Zhang Kuangcheng, Zhu Jiebing, Chen Ming. The Shear Strength Research on Rock-Soil Mixture Material of Weathered Granite Blocks and Residual Soil after Dynamic Compaction[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2016, 30(1): 20-23,45. doi: 10.3969/j.issn.1007-2993.2016.01.004

Citation:

Zhang Kuangcheng, Zhu Jiebing, Chen Ming. The Shear Strength Research on Rock-Soil Mixture Material of Weathered Granite Blocks and Residual Soil after Dynamic Compaction[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2016, 30(1): 20-23,45. doi: 10.3969/j.issn.1007-2993.2016.01.004

Citation:

Zhang Kuangcheng, Zhu Jiebing, Chen Ming. The Shear Strength Research on Rock-Soil Mixture Material of Weathered Granite Blocks and Residual Soil after Dynamic Compaction[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2016, 30(1): 20-23,45. doi: 10.3969/j.issn.1007-2993.2016.01.004

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The Shear Strength Research on Rock-Soil Mixture Material of Weathered Granite Blocks and Residual Soil after Dynamic Compaction

doi: 10.3969/j.issn.1007-2993.2016.01.004

1. Shenzhen Geotechnical Investigation Surveying Institute Co., Ltd, Shenzhen 518028, Guangdong, China;
2. Changjiang River Scientific Research Institute, Wuhan 430010, Hubei, China

Received Date: 2015-05-18

Abstract

Abstract

A high slope,with height up to 44 m and length up to 2600 m,was filled with the rock-soil mixture material of weathered granite blocks and residual soil after dynamic compaction in Zhuhai.China.The design of slope needs the shear strength of the mixture material.The large-scale in-situ direct shear test was carried out and the strength parameters are as follows:angle of internal friction φ=38°,cohesion c=101.4 kPa,angel of internal friction and cohesion between fill material and natural ground,φ=39.1°,c=108.9 kPa,respectively.The special research on the mixture material shows large cohesion values after dynamic compaction.It can be explained that granite rock-soil mixture material total cohesion consists of the shear cohesion of strong weathered rock,the residual soil's original clay cohesion and the stabilized cohesion after compaction.
- rock-soil mixture material,
- dynamic compaction,
- in-situ direct shear test,
- the shear cohesion,
- original cohesion,
- stabilized cohesion