1) thin bedrock
薄基岩
1.
Backfill mining technology for gateway and pillar top coal caving mining under aquifer of shallow thin bedrock;
浅埋薄基岩含水层下巷柱式放顶煤充填开采技术
2.
Study on strip mining size under thick alluvium and thin bedrock;
厚松散层薄基岩条带法开采采留尺度研究
3.
There is hidden safety problem of roof water inrush in the shallow coal seam with thin bedrock during mining,because its roof bedrocks break and fall in a whole and affects ground surface directly.
薄基岩浅埋煤层开采过程中顶板基岩易全厚切落,破断直接波及地表,存在顶板突水的安全隐患。
2) ultrathin bedrock
超薄基岩
1.
Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area,dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed.
以皖北矿区厚含水松散层下超薄基岩开采工作面实测矿压资料与实验数据为依据,论述了超薄基岩工作面顶板的风化变异特征。
3) shallow thin bedrock
浅埋薄基岩
4) lithic reptosol
薄层基岩磐土
5) Thick bedrock thin topsoil
厚表土薄基岩
6) lamination of thin plates and bedrock
薄板与基岩叠合
补充资料：基岩
基岩（bedrock），风化作用发生以后，原来高温高压下形成的矿物被破坏，形成一些在常温常压下较稳定的新矿物，构成陆壳表层风化层，风化层之下的完整的岩石称为基岩，露出地表的基岩称为露头。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条