Journal Published Online: 27 March 2025
Volume 48, Issue 3

Studying Bearing Characteristics and Calculation Models of Karst Cave Roof Utilizing Digital Modeling

CODEN: GTJODJ

Abstract

Given the increasing use of rock-socketed piles in karst regions and the inherent complexity of karst geological problems, this work studied the bearing characteristics of karst cave roofs under rock-socketed piles in karst regions using digital modeling and polyvinyl alcohol three-dimensional printing. By focusing on key parameters such as cave roof thickness, height, and span, the research provides a comprehensive analysis of their impacts on load-bearing behavior. The findings reveal that cave height has the least influence on bearing capacity, whereas the span affects vertical displacement and ultimate load. Notably, the thickness of the cave roof is the most critical factor, significantly altering failure modes and enhancing bearing capacity. A novel theoretical model based on punching-shear failure theory is developed and validated through experimental data. This innovative approach offers a refined understanding of load transfer mechanisms and failure patterns, contributing to more accurate predictions and safer design practices in karst regions.

Author Information

Chen, Junsheng
State Key Laboratory of Subtropical Building Science, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China South China Institute of Geotechnical Engineering, South China University of Technology, Guangzhou, China
Wu, Junyu
State Key Laboratory of Subtropical Building Science, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China
Wu, Yuefeng
State Key Laboratory of Subtropical Building Science, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China
Gao, Qiang
State Key Laboratory of Subtropical Building Science, School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, China
Wu, Bingxin
Department of Logistics Equipment Management, Jinan University Affiliated Guangzhou Red Cross Hospital, Guangzhou, China
Pages: 18
Price: $25.00
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Details
Stock #: GTJ20230396
ISSN: 0149-6115
DOI: 10.1520/GTJ20230396