摘要
为研究西部富水软岩地区冻结压力的规律特征,选择在蒙陕地区某立井进行冻结压力的实测研究。实测研究表明:井筒掘砌施工期间,冻结压力变化可分为6个阶段;冻结压力的产生主要是由于原岩应力的释放、不断重新分布及软岩的重新回冻,与岩性和含水率有关;冻结压力的大小与深度关系不大,受井帮温度影响较大。
In order to study the law of freezing pressure of western rich, a shaft mine of Mongolia and Shaanxi provinces was chosen to study freezing pressure.Measured results shows that changes can be divided into 6 stages; the freezing pressure is caused by the original rock stress release, constantly redistribution, and rock back to freeze,related to lithology and water content; freezing pressure is small relationship with depth, significant effect by the side wall temperature.
出处
《煤炭技术》
CAS
北大核心
2015年第10期47-49,共3页
Coal Technology
基金
"十二五"国家科技支撑计划资助项目(2012BAB13B02)
中国煤炭科工集团科技创新基金资助项目(2013QN008)
关键词
冻结凿井
冻结压力
井帮温度
回归分析
freeze sinking
freezing pressure
side wall temperature
regression analysis
