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Method for treating special geology through combination of vibration gravel pile and preloading
The invention discloses a method for treating special geology by combining a vibration gravel pile with preloading. The method comprises the following steps: measuring and positioning on the special geology to release a hole site of the vibration gravel pile; a hole-forming device is provided, a vibratory hammer of the hole-forming device is clamped on an impact double-pipe through a clamp, the impact double-pipe comprises an inner pipe and an outer pipe, the outer pipe is movably arranged outside the inner pipe in a sleeving mode, and the impact double-pipe is aligned to the hole site; starting the vibratory hammer to insert the lower end of the impact double pipe into the clay layer; the inner pipe is pulled out of the outer pipe, so that the outer pipe is arranged in special geology; a vibroflot forms holes in the clay layer through the outer pipe in a vibroflot mode, and a pile foundation is formed through padding and vibroflot; the outer pipe is pulled out, and a pile body is formed in the silt layer and the block gravel filler from bottom to top through vibration and impact; a broken stone hardcore is laid on the special geology; laying a sand cushion layer on the broken stone cushion layer; and a drainage plate is arranged on the sand cushion layer in a driving mode, and pre-pressing graded stacking is conducted. The problem that differential settlement is easily caused by a traditional foundation treatment method is solved.
本发明公开了一种振动碎石桩联合堆载预压处理特殊地质的方法，包括：于特殊地质上测量定位以放出振动碎石桩的孔位；提供成孔设备，成孔设备的振动锤通过夹具夹持于冲击双管，冲击双管包括内管和外管，外管可活动地套设于内管的外部，将冲击双管对准于孔位；开启振动锤将冲击双管的下端插设于黏土层中；将内管从外管中拔出，使得外管打设于特殊地质中；通过振冲器经由外管于黏土层中振冲成孔并填料振冲形成桩基；拔除外管，并自下而上分别在淤泥质层和块碎石填充中填料振冲形成桩身；于特殊地质上铺设碎石垫层；于碎石垫层铺设砂垫层；于砂垫层上打设排水板并进行预压分级堆载。本发明解决了传统的地基处理方法存在易引起不均匀沉降的问题。
Method for treating special geology through combination of vibration gravel pile and preloading
The invention discloses a method for treating special geology by combining a vibration gravel pile with preloading. The method comprises the following steps: measuring and positioning on the special geology to release a hole site of the vibration gravel pile; a hole-forming device is provided, a vibratory hammer of the hole-forming device is clamped on an impact double-pipe through a clamp, the impact double-pipe comprises an inner pipe and an outer pipe, the outer pipe is movably arranged outside the inner pipe in a sleeving mode, and the impact double-pipe is aligned to the hole site; starting the vibratory hammer to insert the lower end of the impact double pipe into the clay layer; the inner pipe is pulled out of the outer pipe, so that the outer pipe is arranged in special geology; a vibroflot forms holes in the clay layer through the outer pipe in a vibroflot mode, and a pile foundation is formed through padding and vibroflot; the outer pipe is pulled out, and a pile body is formed in the silt layer and the block gravel filler from bottom to top through vibration and impact; a broken stone hardcore is laid on the special geology; laying a sand cushion layer on the broken stone cushion layer; and a drainage plate is arranged on the sand cushion layer in a driving mode, and pre-pressing graded stacking is conducted. The problem that differential settlement is easily caused by a traditional foundation treatment method is solved.
本发明公开了一种振动碎石桩联合堆载预压处理特殊地质的方法，包括：于特殊地质上测量定位以放出振动碎石桩的孔位；提供成孔设备，成孔设备的振动锤通过夹具夹持于冲击双管，冲击双管包括内管和外管，外管可活动地套设于内管的外部，将冲击双管对准于孔位；开启振动锤将冲击双管的下端插设于黏土层中；将内管从外管中拔出，使得外管打设于特殊地质中；通过振冲器经由外管于黏土层中振冲成孔并填料振冲形成桩基；拔除外管，并自下而上分别在淤泥质层和块碎石填充中填料振冲形成桩身；于特殊地质上铺设碎石垫层；于碎石垫层铺设砂垫层；于砂垫层上打设排水板并进行预压分级堆载。本发明解决了传统的地基处理方法存在易引起不均匀沉降的问题。
Method for treating special geology through combination of vibration gravel pile and preloading
振动碎石桩联合堆载预压处理特殊地质的方法
ZHANG QINGYU (author) / BI XINYANG (author) / ZHANG HAOTIAN (author) / CAO BIHUI (author) / PAN DONGXU (author) / ZHOU YU (author) / LI YING (author) / LIU SUO (author) / JIANG SHANG (author) / YANG JUWEI (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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