A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Grouting method for easy-to-collapse stratum
The invention discloses a grouting method for an easy-to-collapse stratum. The grouting method comprises the following steps that drilling is conducted to form a hole in the easy-to-collapse stratum, drilling is conducted by adopting a sleeve follow-up retaining wall mode, and a section of slurry outlet sleeve with a slurry outlet hole is arranged at the lower part of a sleeve; after the grout outlet sleeve on the lower portion of the sleeve reaches the position of a stratum needing grouting, a rubber plug is lowered to the position above the grout outlet sleeve along the interior of the sleeve, an air pipe is connected to the rubber plug, and the top end of the air pipe is connected to an air compressor or a compressed air tank; a grouting pipe is arranged to penetrate through the rubber plug, so that a bottom grout outlet of the grouting pipe is in communication with the grout outlet sleeve, and a top grouting opening of the grouting pipe is connected to a grouting pump; certain pressure is applied to the rubber plug through the air compressor or the compressed air tank, so that the outer wall of the rubber plug is tightly attached to the inner wall of the sleeve to realize sealing; and the grouting pump is used for grouting grout with a certain pressure into the grout outlet sleeve through the grouting pipe. Equipment used by the grouting method for the easy-to-collapse stratum is simple and conventional, and large-area popularization and application are facilitated.
本发明公开了一种易塌地层灌浆方法，在易塌地层进行钻探成孔，采用套管跟进护壁的方式钻进，套管的下部设置有一段带有出浆孔的出浆套管；待套管下部的出浆套管达到需灌浆地层位置后，将橡胶栓塞沿套管内部下放至出浆套管的上方位置，橡胶栓塞上连接有气管，气管的顶端连接至空压机或压缩气罐；设置一注浆管贯穿该橡胶栓塞，使注浆管的底部出浆口与出浆套管连通，注浆管的顶部注浆口连接至压浆泵；通过空压机或压缩气罐对橡胶栓塞施加一定压力，使得橡胶栓塞的外壁与套管的内壁紧贴而实现密封；压浆泵将一定压力的浆液通过注浆管灌入出浆套管中进行灌浆。本发明的易塌地层灌浆方法所用设备简单、常规，便于大面积推广应用。
Grouting method for easy-to-collapse stratum
The invention discloses a grouting method for an easy-to-collapse stratum. The grouting method comprises the following steps that drilling is conducted to form a hole in the easy-to-collapse stratum, drilling is conducted by adopting a sleeve follow-up retaining wall mode, and a section of slurry outlet sleeve with a slurry outlet hole is arranged at the lower part of a sleeve; after the grout outlet sleeve on the lower portion of the sleeve reaches the position of a stratum needing grouting, a rubber plug is lowered to the position above the grout outlet sleeve along the interior of the sleeve, an air pipe is connected to the rubber plug, and the top end of the air pipe is connected to an air compressor or a compressed air tank; a grouting pipe is arranged to penetrate through the rubber plug, so that a bottom grout outlet of the grouting pipe is in communication with the grout outlet sleeve, and a top grouting opening of the grouting pipe is connected to a grouting pump; certain pressure is applied to the rubber plug through the air compressor or the compressed air tank, so that the outer wall of the rubber plug is tightly attached to the inner wall of the sleeve to realize sealing; and the grouting pump is used for grouting grout with a certain pressure into the grout outlet sleeve through the grouting pipe. Equipment used by the grouting method for the easy-to-collapse stratum is simple and conventional, and large-area popularization and application are facilitated.
本发明公开了一种易塌地层灌浆方法，在易塌地层进行钻探成孔，采用套管跟进护壁的方式钻进，套管的下部设置有一段带有出浆孔的出浆套管；待套管下部的出浆套管达到需灌浆地层位置后，将橡胶栓塞沿套管内部下放至出浆套管的上方位置，橡胶栓塞上连接有气管，气管的顶端连接至空压机或压缩气罐；设置一注浆管贯穿该橡胶栓塞，使注浆管的底部出浆口与出浆套管连通，注浆管的顶部注浆口连接至压浆泵；通过空压机或压缩气罐对橡胶栓塞施加一定压力，使得橡胶栓塞的外壁与套管的内壁紧贴而实现密封；压浆泵将一定压力的浆液通过注浆管灌入出浆套管中进行灌浆。本发明的易塌地层灌浆方法所用设备简单、常规，便于大面积推广应用。
Grouting method for easy-to-collapse stratum
一种易塌地层灌浆方法
YU JIAN (author) / LIU DANZHONG (author) / ZHANG GUOLIANG (author) / SUN WENHAO (author) / LIU CHENGZHOU (author) / HOU JINFANG (author) / YU ZHIFA (author) / ZHUGE AIJUN (author)
2021-07-23
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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