这个煤层处于一层黏土岩之上。
介绍了浅孔光爆技术在黏土岩中的掘进特点、爆破方法及参数、施工工艺及组织。
The paper introduced the excavation features, blasting method and parameters, construction technology and organization of the shallow borehole smooth blasting technology in clay and rock roadway.
土壤：石灰岩，红黏土。
第二律适用于斜坡的蠕变破坏分析预测，例如岩滑、堆积层滑坡、黄土滑坡以及含锁固段的黏土滑坡。
The second law can be applied to the prediction of creep failure, such as rockslides, colluvial-deposit landslides and loess landslides as well as clay landslides with locked patches.
岩性主要为黏土、亚黏土、细砂，孔隙小，富含氟的矿物成分为地下水中高氟提供了丰富的物质来源。
The main lithology is clay, sub-clay, fine sand, fine porosity, the mineral components of rich fluoride provides an abundance of matter resources.
岩性主要为黏土、亚黏土、细砂，孔隙小，富含氟的矿物成分为地下水中高氟提供了丰富的物质来源。
The main lithology is clay, sub-clay, fine sand, fine porosity, the mineral components of rich fluoride provides an abundance of matter resources.
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