【摘要】 结合深厚表土中井壁破裂治理的实际工程 ,在数值模拟计算和现场实测成果的基础上 ,通过物理模拟试验对“卸压法”治理井壁破裂的机理进行了研究 .分析了井壁二次破裂的过程、位置和形态 ,以及卸压槽的卸压特性 ,得到了卸压法治理井壁破裂的力学机理 ,为卸压法防治井壁破裂提供了理论依据和工程参数 .更多还原

【Abstract】 By combining with the practical project of harnessing fractured shaft lining in thick alluvium,the mechanism of the stress relief technique was investigated by physical simulation tests based on numerical simulation calculation and field measurement results. The process,position and form of the re fracture of shaft lining and the characteristic of the stress relief slot were analyzed. The mechanical mechanism of the stress relief method to harness shaft lining fracture was obtained. The research provides theoretic foundation and engineering parameters for the harnessing of shaft lining fracture.更多还原