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A platform for research: civil engineering, architecture and urbanism
The invention relates to the related technical field of karst grouting, and discloses a filling type karst grouting plugging device which is provided with a hollow drill rod, a grouting drill rod and a concrete conveying pump connected with the hollow drill rod through a rotary joint. Mortar can be injected into karst gaps in a drill hole through the hollow drill rod and the grouting drill rod without withdrawing the drill bit, the risk that the drill hole is blocked after the drill bit withdraws is avoided, meanwhile, the grouting depth can be accurately controlled through the connecting position of the grouting drill rod, and meanwhile, underground mortar can be prevented from flowing backwards through the grouting backward-flowing-preventing mechanism.
本发明涉及岩溶灌浆相关技术领域，公开了一种充填型岩溶灌浆封堵装置，通过空心钻杆和灌浆钻杆以及通过旋转接头与空心钻杆连接的混凝土输送泵的设置，使得在钻孔时，无需将钻头退出即可通过空心钻杆和灌浆钻杆向钻孔内的岩溶缝隙内注入砂浆，避免了钻头退出后钻孔堵塞的风险，同时也可以通过灌浆钻杆的连接位置来精确控制灌浆的深度，同时灌浆防倒灌机构也可以避免地下砂浆倒灌。
The invention relates to the related technical field of karst grouting, and discloses a filling type karst grouting plugging device which is provided with a hollow drill rod, a grouting drill rod and a concrete conveying pump connected with the hollow drill rod through a rotary joint. Mortar can be injected into karst gaps in a drill hole through the hollow drill rod and the grouting drill rod without withdrawing the drill bit, the risk that the drill hole is blocked after the drill bit withdraws is avoided, meanwhile, the grouting depth can be accurately controlled through the connecting position of the grouting drill rod, and meanwhile, underground mortar can be prevented from flowing backwards through the grouting backward-flowing-preventing mechanism.
本发明涉及岩溶灌浆相关技术领域，公开了一种充填型岩溶灌浆封堵装置，通过空心钻杆和灌浆钻杆以及通过旋转接头与空心钻杆连接的混凝土输送泵的设置，使得在钻孔时，无需将钻头退出即可通过空心钻杆和灌浆钻杆向钻孔内的岩溶缝隙内注入砂浆，避免了钻头退出后钻孔堵塞的风险，同时也可以通过灌浆钻杆的连接位置来精确控制灌浆的深度，同时灌浆防倒灌机构也可以避免地下砂浆倒灌。
Filling type karst grouting plugging device
一种充填型岩溶灌浆封堵装置
LI XIAOJUN (author)
2023-07-04
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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