Researches on the Relationship between Characteristic Parameters of Surrounding Rock and Structural Parameters of Bolting-grounting Support Body based on the Ideal Elastic-plastic Support Model

摘要

For the time being the theory about the failure mechanism of the soft rocks, mechanical behavior of bolting-grouting support body in soft rocks has not been fully comprehended. The design of the bolting-grouting support is mostly based on experience and by analogy, and the theoretical analysis results are far more different with the practical engineering. To solve the problem, the researches on the bolting-grouting support mechanism of the soft rocks and the interrelationship between characteristic parameters of the surrounding rocks and structural parameters of bolting-grouting support body are carried out based on the nested models of original surrounding rocks and the bolting-grouting structure. The qualitative and quantitative relationship between characteristic parameters of the surrounding rocks and structural parameters of bolting-grouting support is found out. At the same time, it could also provide beneficial reference to the practical engineering design and construction.