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1)  high pressure cement grouting
沿空动压
2)  along the goaf and road
沿空沿底
3)  along gob area
沿空
1.
Aiming at the feature of spontaneous combustion in the construction process of starting cut along gob area of fully mechanized coal face,the author puts forward the reasonable layout of starting cut and special fire-fighting technology through profound study and better results are achieved,providing an example for the similar working faces in safe production and fire-fighting processes.
针对综放工作面沿空开切眼施工过程中的自燃发火特点,通过深入研究,提出了切眼的合理布置方式与专项防灭火技术措施,取得了较好效果,为综放工作面的安全生产和同类工作面的防灭火提供了借鉴。
4)  rock pressure model of gob-side entry
沿空留巷矿压模型
5)  retaining roadways along goaf
沿空留巷
1.
The mining technology by areas with retaining roadways along goaf is applied in Baishan Coal Mine.
百善煤矿采用沿空留巷分区开采技术将669不规则工作面划分成4个小工作面,逐一成功回采。
2.
The retaining roadways along goaf is applied in the left No.
东山煤矿下五采左二下巷沿空留巷,采用钢网、锚杆、锚索、石墙联合支护取得了良好的效果,缓解了采掘接续紧张局面,加快了接续能力,并创造了较好的经济和社会效益。
3.
Some aspects were analyzed,such as the function of support in retaining roadways along goaf,mine pressure behavior,support ways,the satisfied requirements,and the existing problems in maintenance.
分析了沿空留巷支护的作用、矿压显现、支护方式、应满足的要求及维护中存在的问题。
6)  gob-side entry driving
沿空掘巷
1.
Research on surrounding rock deformation factors in gob-side entry driving of fully mechanized longwall top coal caving mining face in island seam;
孤岛综放工作面沿空掘巷围岩变形因素研究
2.
The gob-side entry driving in the fully-mechanized coal winning face can be protected successfully by using the anchored cable and rod supporting system.
采用锚杆、锚索支护系统成功地维护了综放沿空掘巷,保证了综放面顺利回采。
3.
In fouth cola mine of Hebi coal power stock company,roadway of neighbouring goaf bear a large pressure,maintenance is very difficult ,it affects safety production,in order to solve this problem,this coal mine co-operates with jiaozuo university of engiveering,combined supporting technology of gob-side entry driving have been studied through test in 2118 2614 workface tood results are gained.
鹤壁煤电股份公司四矿综放工作面相邻采空区的巷道所受压力大,维护困难,严重影响安全生产,为解决这一问题,该矿与焦作工学院合作,进行了沿空掘巷联合支护技术研究,经2118、2614综放面试验,效果良好。
补充资料:冲击波超压与动压

[解释]:  核爆炸产生的高温、高压火球膨胀,在周围介质中形成连续向外传播的压力脉冲(或冲击波),冲击波阵面传播到空间某点时,超过周围环境大器的压力称超压;空气粒子高速随波阵面运动产生的冲击压力称动压。超压和动压都以帕斯卡(Pa)为主单位。超压随时间的变化取决于爆炸威力、距爆点的距离和爆心周围的介质情况。特定地点的峰值超压一般出现在冲击波阵面到达该点的瞬间,超压在该点的持续时间称为正压作用时间。尔后,该点的压力下降到低于周围压力,称为负压,再逐渐回升到周围压力值。对人员的直接冲击伤,超压为20—29千帕可引器轻度伤;29—59千帕可导致中度伤;59—98千帕可造成重度伤;大于98千帕可造成极重度伤。动压为10—20千帕可造成中度伤;20—39千帕可造成重度伤;大于39千帕可造成极重度伤。动压的推动、抛掷和超压的挤压会造成物体变形和毁坏。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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