摘要
防治瓦斯突出的行之有效的方法之一就是预先抽放瓦斯，而影响抽放效果的主要因素是煤层的渗透性。通过对交叉钻孔的塑性强化区进行分析。
To build a high productive and efficient mine is a goal for coal mining development in each mining country.This paper analyzed and stated the structural features and application conditions of the caving support in each period in China.This paper especially induced a new light weight caving support.This caving support has advantages of structure simple and compact,light weight and price suitable.The support is suitable for medium and small mine operation and for mine boundary mining operation.The support is a reverse four bar caving support with two conveyors and large caving window.The support has a continued high mining rate,high caving speed,high efficiency,less coal dust and other features.The support can be suitable to be used in a coal mining face with a soft floor geological condition and has a high resistance capacity to the side force and torque.
出处
《煤炭科学技术》
CAS
北大核心
1997年第2期10-12,共3页
Coal Science and Technology
