摘要
以冻结法施工的某矿副井为例 ,编制有限元程序 ,对冻结壁融沉作用在井壁上负摩擦力进行弹塑性分析 ,初步得到该负摩擦力的分布规律及影响因素 ,即该融沉负摩擦力在深度方向上由地表到中上部呈递增 ,然后呈递减 ;融沉负摩擦力与土层的性质、水平侧压力大小、融沉量等因素密切相关。该程序可为冻结井设计和施工及相关研究提供一定的参考。
Taking an auxiliary shaft of a certain mine as an example, the authors have designed a finite element programme to analyse the elasticity of the negative frictional force applied to the shaft by thawing settlement of the frozen shaft wall, and understood preliminarily its distribution rule and effect. That is to say, the negative frictional force increases gradually from surface to middle-upper levels and then reduce gradually with the depth. The negative friction force has a close relation with soil quality, lateral pressure and thawing settlement amount, etc, which is an important reference basis for frozen shaft designing and construction and its related research.
出处
《矿冶工程》
CAS
CSCD
北大核心
2003年第5期1-4,共4页
Mining and Metallurgical Engineering
