A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tunnel ground surface directional large-diameter deep hole grouting device and grouting method
The invention discloses a tunnel ground surface directional large-diameter deep hole grouting device and a grouting method. The tunnel ground surface directional large-diameter deep hole grouting device comprises a grouting passage drilled in a foundation layer; a grout outlet is formed in a plastic valve pipe; a rubber one-way valve is arranged on a casing; a grouting core pipe is arranged in theplastic valve pipe; a grouting mouth is formed in the grouting core pipe; one end of a grouting pipe communicates with the grouting core pipe; a sealing ring is arranged outside the grouting pipe ina sleeving manner; and the external surface of the sealing ring is attached to the internal wall of the plastic valve pipe. The grouting method comprises the following steps of grouting reinforcing ofa ground surface deep hole, sidewalk construction, ground surface cleaning and drilling machine platform dressing, drilling and grouting circulation selection, drilling, mounting of a sleeve valve pipe and grouting. According to the tunnel ground surface directional large-diameter deep hole grouting device and the grouting method, grouting reinforcing and tunnel excavation can be synchronously carried out, the work time can be saved, and moreover, the surrounding rock stability can be effectively improved, and as vertical grouting reinforcing can also be carried out on a deep tunnel, the grouting difficulty is reduced, and the grouting reinforcing speed is increased.
本发明公开了隧道地表定向大口径深孔注浆装置及注浆方法，注浆装置包括基础层上钻有注浆通道；出浆口设置于塑料阀管上；橡皮单向阀设置于套管上；注浆芯管设置于塑料阀管内，注浆芯管上设置有注浆口；注浆管的一端与浆芯管的连通，且密封圈套设于注浆管的外部，且密封圈的外表面贴附于塑料阀管的内壁上。注浆方法包括以下步骤：地表深孔注浆加固；便道修建；地表清理及钻机平台整修；钻孔、注浆循环选择；钻孔；安装袖伐管；注浆。本发明可以达到注浆加固与隧道开挖同步进行，不仅节省了工时，而且有效提高了围岩的稳定性，对于深埋隧道亦可进行垂直注浆加固，降低了注浆难度，提高了注浆加固速度。
Tunnel ground surface directional large-diameter deep hole grouting device and grouting method
The invention discloses a tunnel ground surface directional large-diameter deep hole grouting device and a grouting method. The tunnel ground surface directional large-diameter deep hole grouting device comprises a grouting passage drilled in a foundation layer; a grout outlet is formed in a plastic valve pipe; a rubber one-way valve is arranged on a casing; a grouting core pipe is arranged in theplastic valve pipe; a grouting mouth is formed in the grouting core pipe; one end of a grouting pipe communicates with the grouting core pipe; a sealing ring is arranged outside the grouting pipe ina sleeving manner; and the external surface of the sealing ring is attached to the internal wall of the plastic valve pipe. The grouting method comprises the following steps of grouting reinforcing ofa ground surface deep hole, sidewalk construction, ground surface cleaning and drilling machine platform dressing, drilling and grouting circulation selection, drilling, mounting of a sleeve valve pipe and grouting. According to the tunnel ground surface directional large-diameter deep hole grouting device and the grouting method, grouting reinforcing and tunnel excavation can be synchronously carried out, the work time can be saved, and moreover, the surrounding rock stability can be effectively improved, and as vertical grouting reinforcing can also be carried out on a deep tunnel, the grouting difficulty is reduced, and the grouting reinforcing speed is increased.
本发明公开了隧道地表定向大口径深孔注浆装置及注浆方法，注浆装置包括基础层上钻有注浆通道；出浆口设置于塑料阀管上；橡皮单向阀设置于套管上；注浆芯管设置于塑料阀管内，注浆芯管上设置有注浆口；注浆管的一端与浆芯管的连通，且密封圈套设于注浆管的外部，且密封圈的外表面贴附于塑料阀管的内壁上。注浆方法包括以下步骤：地表深孔注浆加固；便道修建；地表清理及钻机平台整修；钻孔、注浆循环选择；钻孔；安装袖伐管；注浆。本发明可以达到注浆加固与隧道开挖同步进行，不仅节省了工时，而且有效提高了围岩的稳定性，对于深埋隧道亦可进行垂直注浆加固，降低了注浆难度，提高了注浆加固速度。
Tunnel ground surface directional large-diameter deep hole grouting device and grouting method
隧道地表定向大口径深孔注浆装置及注浆方法
LI WEI (author) / WANG FENGXI (author) / LIU LEI (author) / ZHANG CHENGJU (author) / YUE GUOCHENG (author) / ZHANG BO (author) / DOU LIWEI (author) / XIAO WANGJUN (author)
2020-10-23
Patent
Electronic Resource
Chinese
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