Open Access

ARTICLE

Reinforcement of Clay Soils through Fracture Grouting

Shaozhen Cheng^1,2,3,*, Tielin Chen¹, Zizhou Xue³, Kang Zhu³, Jianke Li³
1 School of Civil Engineering, Beijing Jiaotong University, Beijing, 100044, China
2 Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing, 100088, China
3 Beijing Geotechnical Anchorage Engineering Center, China Jingye Engineering Co., Ltd., Beijing, 100088, China
* Corresponding Author: Shaozhen Cheng. Email:
(This article belongs to this Special Issue: Advanced Materials, Processing and Testing Technology)

Fluid Dynamics & Materials Processing 2022, 18(6), 1649-1665. https://doi.org/10.32604/fdmp.2022.018789

Received 17 August 2021; Accepted 16 December 2021; Issue published 27 June 2022

Abstract

Fracture grouting is widely used for building foundation reinforcement, however the underpinning mechanisms are still not clear. Using numerical results about a single-hole fracture grouting process as a basis, a model composed of soil and grouting veins has been created to analyze the reinforcement mechanism. The influence weights of the grouting vein skeleton and compaction effect have been studied, thereby obtaining relevant information on the compressive modulus of the considered composite soil. The research results show that the compaction effect plays a leading role in the soil fracture grouting reinforcement. The grouting pressure, the hardened grouting vein modulus, and the shape of the grouting veins all influence the compressive modulus of the composite soil.

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Keywords

Building foundation; fracture grouting; composite soil; reinforcement mechanism; reinforcement effect

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