Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for repairing large-burial-depth rock burst mine roadway
The invention relates to the technical field of coal mine roadway repairing, in particular to a method for repairing a large-burial-depth rock burst mine roadway. The method for repairing a large-burial-depth rock burst mine roadway comprises the following steps: supporting, thin-spraying sealing, deep-hole grouting and re-spraying; wherein the thin-spraying sealing process is mainly used for filling shallow loose and broken surrounding rock to form a shallow anchor rod compression area built-up arch; deep-hole grouting is used for cementing deep loose surrounding rock to form a deep slurry diffusion reinforcing arch; and deep-hole grouting is used for ensuring that slurry has zero permeability so as to be tightly combined with the deep loose surrounding rock and firmly bonded with a thin-spraying sealing layer. The large particles in the slurry are not easy to settle, and the stability of the grouted arch-shaped structural surface is high; thin-spraying sealing and deep-hole groutingare matched to form a double-layer pressurizing composite arch structure to reinforce a roadway, mud-philic slurry and improved mud-philic slurry are adopted for thin-spraying sealing and deep-hole grouting respectively, and the stability of the double-layer pressurizing composite arch structure is guaranteed.
本发明涉及煤矿巷道修复技术领域，尤其是一种大埋深冲击地压矿井巷道修复方法。本发明的大埋深冲击地压矿井巷道修复方法包括如下步骤：支护、薄喷封闭、深孔注浆和复喷，在薄喷封闭过程主要为了将浅层松散破碎的围岩进行填充，形成浅部锚杆压缩区组合拱，深孔注浆则对深部松散围岩进行胶结形成深部浆液扩散加固拱，深孔注浆过程中为了确保浆料具备零号的渗透性能够与深部松散围岩紧密结合且与薄喷封闭层粘合稳固。本发明浆料中大颗粒不易沉降，注浆成的拱形结构面稳定性强；采用薄喷封闭与深孔注浆配合形成了双层加压复合拱结构对巷道进行加固，在薄喷封闭与深孔注浆分别采用亲泥性浆料改进型亲泥浆料进行注浆，确保双层加压复合拱结构的稳固性。
Method for repairing large-burial-depth rock burst mine roadway
The invention relates to the technical field of coal mine roadway repairing, in particular to a method for repairing a large-burial-depth rock burst mine roadway. The method for repairing a large-burial-depth rock burst mine roadway comprises the following steps: supporting, thin-spraying sealing, deep-hole grouting and re-spraying; wherein the thin-spraying sealing process is mainly used for filling shallow loose and broken surrounding rock to form a shallow anchor rod compression area built-up arch; deep-hole grouting is used for cementing deep loose surrounding rock to form a deep slurry diffusion reinforcing arch; and deep-hole grouting is used for ensuring that slurry has zero permeability so as to be tightly combined with the deep loose surrounding rock and firmly bonded with a thin-spraying sealing layer. The large particles in the slurry are not easy to settle, and the stability of the grouted arch-shaped structural surface is high; thin-spraying sealing and deep-hole groutingare matched to form a double-layer pressurizing composite arch structure to reinforce a roadway, mud-philic slurry and improved mud-philic slurry are adopted for thin-spraying sealing and deep-hole grouting respectively, and the stability of the double-layer pressurizing composite arch structure is guaranteed.
本发明涉及煤矿巷道修复技术领域，尤其是一种大埋深冲击地压矿井巷道修复方法。本发明的大埋深冲击地压矿井巷道修复方法包括如下步骤：支护、薄喷封闭、深孔注浆和复喷，在薄喷封闭过程主要为了将浅层松散破碎的围岩进行填充，形成浅部锚杆压缩区组合拱，深孔注浆则对深部松散围岩进行胶结形成深部浆液扩散加固拱，深孔注浆过程中为了确保浆料具备零号的渗透性能够与深部松散围岩紧密结合且与薄喷封闭层粘合稳固。本发明浆料中大颗粒不易沉降，注浆成的拱形结构面稳定性强；采用薄喷封闭与深孔注浆配合形成了双层加压复合拱结构对巷道进行加固，在薄喷封闭与深孔注浆分别采用亲泥性浆料改进型亲泥浆料进行注浆，确保双层加压复合拱结构的稳固性。
Method for repairing large-burial-depth rock burst mine roadway
一种大埋深冲击地压矿井巷道修复方法
WANG ZHONGMI (Autor:in) / LIU WEIXIN (Autor:in) / MI SHITING (Autor:in) / WANG QIJIE (Autor:in) / SU LICHONG (Autor:in) / HE YUSHOU (Autor:in) / SONG TAO (Autor:in) / YUAN RENPENG (Autor:in) / ZHU HUI (Autor:in) / MENG QINGXIN (Autor:in)
20.11.2020
Patent
Elektronische Ressource
Chinesisch
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