After the inundation of shaft in Chengchao Iron Mine, large area collapse of development openings caused serious influence on production.
程潮铁矿淹井后采准井巷大面积坍塌，给生产造成严重影响。
On the basis of these data, the main factors affecting the crack openings are found according to the basic principles on the emergence and development of cracks.
在试验资料的基础上，根据裂缝出现和开展的基本原理，找出影响裂缝宽度的主要因素。
On the basis of these data, the main factors affecting the crack openings are found according to the basic principles on the emergence and development of cracks.
在试验资料的基础上，根据裂缝出现和开展的基本原理，找出影响裂缝宽度的主要因素。
应用推荐