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Double-liquid composite micro-disturbance cement-soil mixing pile equipment and construction technology
The invention relates to double-liquid composite micro-disturbance cement-soil mixing pile equipment and a construction process, a cement grout spray pipe is provided with an inner pipe and an outer pipe which can slide relatively, so that automatic switching of guniting positions in the drilling process and the lifting process is achieved, a lower nozzle guniting when the cement grout spray pipe drills downwards is arranged, and an upper nozzle guniting above a blade area when the cement grout spray pipe is lifted is arranged. The device has the beneficial effects that the sprayed cement slurry is always on the passing path of the blade through automatic switching of the slurry spraying positions in the downward drilling process and the upward lifting process, the mixing effect of double liquids is improved in cooperation with water glass sprayed by the water glass spraying pipe, and the situation that the mass of the upper portion of a pile body is higher than that of the lower portion of the pile body is avoided; water glass and cement slurry are sprayed through the water glass spraying pipe and the cement slurry spraying pipe respectively, the blade is arranged at the bottom of the cement slurry spraying pipe and serves as a drill rod, the tunneling efficiency is improved through cooperation of the tooth-shaped blade and the rhombic blade, and drilling and slurry spraying are conducted at the same time.
本发明涉及一种双液复合微扰动水泥土搅拌桩设备及施工工艺，水泥浆液喷管通过设置可相对滑动的内管和外管，实现下钻和上提过程喷浆位置的自动转换，设置水泥浆液喷管下钻时下喷口喷浆，而上提时在刀片区域以上的上喷口喷浆。本发明的有益效果是：下钻和上提过程喷浆位置的自动转换，确保喷出的水泥浆始终在刀片的经过路径上，并配合水玻璃喷管喷出的水玻璃，提升双液的混合效果，避免出现桩身上部质量要高于下部的情况；通过水玻璃喷管和水泥浆液喷管分别喷射水玻璃和水泥浆，水泥浆液喷管底部设置刀片，同时作为钻杆使用，通过齿状刀片和菱形刀片的配合提高掘进效率，实现下钻和喷浆的同时进行。
Double-liquid composite micro-disturbance cement-soil mixing pile equipment and construction technology
The invention relates to double-liquid composite micro-disturbance cement-soil mixing pile equipment and a construction process, a cement grout spray pipe is provided with an inner pipe and an outer pipe which can slide relatively, so that automatic switching of guniting positions in the drilling process and the lifting process is achieved, a lower nozzle guniting when the cement grout spray pipe drills downwards is arranged, and an upper nozzle guniting above a blade area when the cement grout spray pipe is lifted is arranged. The device has the beneficial effects that the sprayed cement slurry is always on the passing path of the blade through automatic switching of the slurry spraying positions in the downward drilling process and the upward lifting process, the mixing effect of double liquids is improved in cooperation with water glass sprayed by the water glass spraying pipe, and the situation that the mass of the upper portion of a pile body is higher than that of the lower portion of the pile body is avoided; water glass and cement slurry are sprayed through the water glass spraying pipe and the cement slurry spraying pipe respectively, the blade is arranged at the bottom of the cement slurry spraying pipe and serves as a drill rod, the tunneling efficiency is improved through cooperation of the tooth-shaped blade and the rhombic blade, and drilling and slurry spraying are conducted at the same time.
本发明涉及一种双液复合微扰动水泥土搅拌桩设备及施工工艺，水泥浆液喷管通过设置可相对滑动的内管和外管，实现下钻和上提过程喷浆位置的自动转换，设置水泥浆液喷管下钻时下喷口喷浆，而上提时在刀片区域以上的上喷口喷浆。本发明的有益效果是：下钻和上提过程喷浆位置的自动转换，确保喷出的水泥浆始终在刀片的经过路径上，并配合水玻璃喷管喷出的水玻璃，提升双液的混合效果，避免出现桩身上部质量要高于下部的情况；通过水玻璃喷管和水泥浆液喷管分别喷射水玻璃和水泥浆，水泥浆液喷管底部设置刀片，同时作为钻杆使用，通过齿状刀片和菱形刀片的配合提高掘进效率，实现下钻和喷浆的同时进行。
Double-liquid composite micro-disturbance cement-soil mixing pile equipment and construction technology
一种双液复合微扰动水泥土搅拌桩设备及施工工艺
QIAN HAIBO (author) / DONG YUQING (author) / TONG XIAOLONG (author) / LIU LISHA (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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