摘要
基于冻土融沉特性及井壁竖向附加力的相关研究,分析了竖向附加力影响下的井壁变形破坏机理,结合郭屯主井的偏斜沉降问题,提出了相应的治理方案。研究结果表明,竖向附加力随井龄及深度的增大而增大,井壁薄弱面为表土层底段井壁中心剖面。
Based on the study of thawing-melting characteristics of permafrost and the vertical additional force on the shaft wall, the deformation and damage mechanism of the shaft wall under the influence of vertical additional force is analyzed,combined with the deviation settlement of the main shaft in Guotun, a corresponding control scheme is proposed. The results show that the vertical additional force increases with the increase of shaft age and depth ,the weak surface of the shaft wall is the central section of the bottom wall of the topsoil.
作者
赵仁乐
杨胜硕
李廷春
ZHAO Ren-le1, YANG Sheng-shuo2, LI Ting-chun2(1. Linyi Mining Group, Linyi 276000, China; 2. Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590, Chin)
出处
《煤炭技术》
CAS
2018年第4期61-63,共3页
Coal Technology
基金
国家自然科学基金(41772299
51604166
51279096)
关键词
井壁
冻土融沉
竖向附加力
变形
shaft wall
thawing settlement of frozen soil
vertical additional force
deformation
