摘要
针对袁大滩煤矿井筒主斜井冻结范围内砂土地层已经存在含盐注浆材料的情况,结合工程进行了地层不同含盐量结冰温度和强度测试,得出了砂土的结冰温度随着含盐量的增加而降低,含盐量大于3%,变化明显;含盐量对-10℃冻土单轴抗压强度随着含盐量的增加强度降低显著,为井筒的冻结设计和施工提供参数。
In view of the fact that there are already salt-containing grouting materials in the sand-soil layer in the frozen section of the main inclined shaft of Yuandatan Coal Mine,the freezing temperature and strength test of different salt content in the stratum is carried out in combination with the project,which is the freezing design and construction of the wellbore. Provide parameters.
作者
平永庆
王俊
韩翔
Ping Yongqing;Wang Jun;Han Xiang(China Coal Mine Special Drilling Co.,Ltd.,Handan 056003,China;School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China)
出处
《山西建筑》
2019年第21期67-68,共2页
Shanxi Architecture
关键词
袁大滩
含盐砂土
冻结强度
Yuandatan
salty sand
freezing strength
