【摘要】 针对新型竖向可缩性钻井井壁 ,提出了两种可缩性接头结构形式 ,并进行了竖向、侧向和三轴加载模型试验 .研究结果表明 ,两种结构形式的可缩性接头均具有良好的竖向变形特性 ,抗侧压能力大 ,防水性能好 .研究成果在淮北许疃矿得到了应用更多还原

【Abstract】 The paper presents structural forms of two compressive joints according to the new vertical compressive shaft boring lining , and the tests are done about the compressive joints under vertical load on, side load on and tri axial load on.The test results show that the two structural forms of compressive joint both is of fine property of vertical deformation, property of resist compression and property of water protection. Study results of this paper was applied at Xutuan Coal Mine of Huaibei.更多还原