英德
有道
百度
谷歌
图片
维基
百科
小煤柱 [xiǎo méi zhù]
fender
spurn
toe
spurn
toe
- 小煤柱护巷是工作面上风巷普遍采用的一种布置方式。
Applying small pillar to protecting roadway is a wide used layout in mining roadway. - 高应力区的小煤柱已充分预发育裂隙，且水平位移大，应力水平降低。
Small coal pillar in high stress area has pre-developed splits and large horizontal displacement, and its stress concentration degree is lower. - 但随着煤矿地质条件的不断恶化，采用小煤柱护巷技术的巷道变形量明显加大，难以满足生产要求。
With the depravation of geology condition in colliery, the roadway distortion with small protection pillar increases distinctly and it is hard to meet production need.
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