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A platform for research: civil engineering, architecture and urbanism
Micro-disturbance mixing pile construction method
The invention relates to a micro-disturbance mixing pile construction method. The micro-disturbance mixing pile construction method is completed through combined work of a soil-squeezing-free drill rod, a patterned drill rod and a micro-disturbance drill bit. When the motor drives the non-soil-squeezing drill rod to conduct drilling construction, the background stirring system injects a composite medium and compressed air into the non-soil-squeezing drill rod at the same time, a lower spiral blade on the micro-disturbance drill bit cuts a soil body, meanwhile, slurry is drained to the upper portion, and after the slurry is evenly stirred through a straight blade, the non-soil-squeezing drill rod is driven by the background stirring system to conduct drilling construction on the non-soil-squeezing drill rod. The water is drained to the upper part through the upper spiral blade, then is fully stirred for a plurality of times through the patterned drill rod, and finally flows back to the ground surface through a gap on the non-soil-squeezing drill rod, so that the pressure of a soil body is greatly reduced in the process, the effect of micro-disturbance is achieved, the influence on the surrounding environment is reduced, the stirring of a stirring pile is more uniform, and the engineering quality is improved; the construction method is wide in application range, and is particularly suitable for sensitive zones such as complex underground environment, many surrounding existing buildings, subways and the like.
本发明涉及一种微扰动搅拌桩施工方法，所述的微扰动搅拌桩施工方法由无挤土钻杆，花钻杆，微扰动钻头联合工作来完成。所述无挤土钻杆与花钻杆连接，花钻杆与微扰动钻头连接，当电机驱动无挤土钻杆钻进施工时，后台搅拌系统同时向无挤土钻杆注入复合介质和压缩空气，微扰动钻头上的下螺旋叶片切削土体，同时将泥浆引流到上部，经直叶片搅拌均匀后，又通过上螺旋叶片往上部引流，接着经过花钻杆的多道充分搅拌，最后经无挤土钻杆上的间隙返流到地表面，此过程将大大减小土体压力，达到微扰动的效果,减小对周边环境的影响，同时能使搅拌桩搅拌更均匀，提高工程质量，此工法适用范围广，特别适用于地下环境复杂，周边既有建筑物多，地铁等敏感地带。
Micro-disturbance mixing pile construction method
The invention relates to a micro-disturbance mixing pile construction method. The micro-disturbance mixing pile construction method is completed through combined work of a soil-squeezing-free drill rod, a patterned drill rod and a micro-disturbance drill bit. When the motor drives the non-soil-squeezing drill rod to conduct drilling construction, the background stirring system injects a composite medium and compressed air into the non-soil-squeezing drill rod at the same time, a lower spiral blade on the micro-disturbance drill bit cuts a soil body, meanwhile, slurry is drained to the upper portion, and after the slurry is evenly stirred through a straight blade, the non-soil-squeezing drill rod is driven by the background stirring system to conduct drilling construction on the non-soil-squeezing drill rod. The water is drained to the upper part through the upper spiral blade, then is fully stirred for a plurality of times through the patterned drill rod, and finally flows back to the ground surface through a gap on the non-soil-squeezing drill rod, so that the pressure of a soil body is greatly reduced in the process, the effect of micro-disturbance is achieved, the influence on the surrounding environment is reduced, the stirring of a stirring pile is more uniform, and the engineering quality is improved; the construction method is wide in application range, and is particularly suitable for sensitive zones such as complex underground environment, many surrounding existing buildings, subways and the like.
本发明涉及一种微扰动搅拌桩施工方法，所述的微扰动搅拌桩施工方法由无挤土钻杆，花钻杆，微扰动钻头联合工作来完成。所述无挤土钻杆与花钻杆连接，花钻杆与微扰动钻头连接，当电机驱动无挤土钻杆钻进施工时，后台搅拌系统同时向无挤土钻杆注入复合介质和压缩空气，微扰动钻头上的下螺旋叶片切削土体，同时将泥浆引流到上部，经直叶片搅拌均匀后，又通过上螺旋叶片往上部引流，接着经过花钻杆的多道充分搅拌，最后经无挤土钻杆上的间隙返流到地表面，此过程将大大减小土体压力，达到微扰动的效果,减小对周边环境的影响，同时能使搅拌桩搅拌更均匀，提高工程质量，此工法适用范围广，特别适用于地下环境复杂，周边既有建筑物多，地铁等敏感地带。
Micro-disturbance mixing pile construction method
一种微扰动搅拌桩施工方法
XIE XIAODONG (author) / XIE YIFEI (author) / ZHOU LEI (author) / LIU ZEHAI (author)
2022-12-06
Patent
Electronic Resource
Chinese
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