A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rapid closure method for water inrush point of coal mine tunnel
The invention discloses a coal mine tunnel water inrush point rapid closure method, and relates to the field of mining engineering.The method comprises the steps that the position of a water inrush point is determined; determining a closure point of the coal mine tunnel according to the water inrush point position; a closure exploration hole is formed from the ground to a closure point, and a roadway roof rock core is obtained; determining the height of the roadway exposed by the closure exploration hole, and obtaining the water flow speed; determining the distribution length of the cut-off drill hole group; implementing a cut-off drilling group; in-borehole hydraulic fracturing is carried out at the position x above the roadway roof exposed by the closure borehole group; grouting is conducted on cracks generated by hydraulic fracturing; a grouting drilling group is implemented in a coal mine tunnel area exposed by the closure drilling group on the ground; combined borehole internal blasting is carried out at the position x distance above the roadway roof exposed by the closure borehole group; and a grouting drilling group is implemented in a coal mine tunnel area exposed by the intercepting drilling group from the ground, and grouting is performed when a bottom plate of the tunnel is drilled. The closure efficiency of the water inrush point of the coal mine tunnel can be improved, and the cost is reduced.
本申请公开了一种煤矿巷道突水点快速截流方法，涉及采矿工程领域，该方法包括确定突水点位置；根据突水点位置确定煤矿巷道的截流点；从地面向截流点实施截流探查孔，获取巷道顶板岩芯；确定截流探查孔揭露的巷道高度，获取水流速度；确定截流钻孔组分布长度；实施截流钻孔组；在截流钻孔组揭露巷道顶板以上x距离处进行钻孔内水力压裂；对水力压裂产生的裂缝进行注浆；在地面向截流钻孔组揭露的煤矿巷道区域实施注浆钻孔组；在截流钻孔组揭露巷道顶板以上x距离处，进行联合钻孔内爆破；在地面向截流钻孔组揭露的煤矿巷道区域实施注浆钻孔组，钻探到巷道的底板，进行注浆。本申请能够提高煤矿巷道突水点截流的效率以及降低成本。
Rapid closure method for water inrush point of coal mine tunnel
The invention discloses a coal mine tunnel water inrush point rapid closure method, and relates to the field of mining engineering.The method comprises the steps that the position of a water inrush point is determined; determining a closure point of the coal mine tunnel according to the water inrush point position; a closure exploration hole is formed from the ground to a closure point, and a roadway roof rock core is obtained; determining the height of the roadway exposed by the closure exploration hole, and obtaining the water flow speed; determining the distribution length of the cut-off drill hole group; implementing a cut-off drilling group; in-borehole hydraulic fracturing is carried out at the position x above the roadway roof exposed by the closure borehole group; grouting is conducted on cracks generated by hydraulic fracturing; a grouting drilling group is implemented in a coal mine tunnel area exposed by the closure drilling group on the ground; combined borehole internal blasting is carried out at the position x distance above the roadway roof exposed by the closure borehole group; and a grouting drilling group is implemented in a coal mine tunnel area exposed by the intercepting drilling group from the ground, and grouting is performed when a bottom plate of the tunnel is drilled. The closure efficiency of the water inrush point of the coal mine tunnel can be improved, and the cost is reduced.
本申请公开了一种煤矿巷道突水点快速截流方法，涉及采矿工程领域，该方法包括确定突水点位置；根据突水点位置确定煤矿巷道的截流点；从地面向截流点实施截流探查孔，获取巷道顶板岩芯；确定截流探查孔揭露的巷道高度，获取水流速度；确定截流钻孔组分布长度；实施截流钻孔组；在截流钻孔组揭露巷道顶板以上x距离处进行钻孔内水力压裂；对水力压裂产生的裂缝进行注浆；在地面向截流钻孔组揭露的煤矿巷道区域实施注浆钻孔组；在截流钻孔组揭露巷道顶板以上x距离处，进行联合钻孔内爆破；在地面向截流钻孔组揭露的煤矿巷道区域实施注浆钻孔组，钻探到巷道的底板，进行注浆。本申请能够提高煤矿巷道突水点截流的效率以及降低成本。
Rapid closure method for water inrush point of coal mine tunnel
一种煤矿巷道突水点快速截流方法
LI TAO (author) / MA LIQIANG (author) / FAN LIMIN (author) / ZHENG KAIDAN (author) / LI BO (author) / GAO YING (author) / YANG JUNWEI (author) / ZHANG PENG (author) / HUANG MINGDA (author) / WANG HAI (author)
2024-10-25
Patent
Electronic Resource
Chinese
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