Research on Roof Fracture Characteristics of Gob-Side Entry Retaining with Roof Cutting and Non-pillar Mining in Thick Coal Seam,China     

Zhao  Mengye  Zhu  Lei  Huang  Qingxiang  Xu  Kai  Wu  Yuyi  Gu  Wenzhe 《Geotechnical and Geological Engineering》2022,40(3):1429-1448

Geotechnical and Geological Engineering - Based on the S1201-2 large height mining in the 2–2 coal seam of Ningtiaota colliery with on-site microseismic measurement, physical simulation and...  相似文献   

宗地面积测量限差的探讨     

汤建国  方秋生  薛梦烨 《现代测绘》2008,31(3)

作者结合工作实践,对地籍调查中宗地面积两次测绘限差分布规律进行了分析,对宗地面积测绘限差公式进行推导,该公式对实际工作有一定的参考作用。  相似文献