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Construction method of immersed tube rib hoop gravel pile for reinforcing soft foundation
The invention discloses a construction method of an immersed tube rib hoop gravel pile for reinforcing a soft foundation. The construction method comprises the following steps of firstly, constructing on a ground foundation surface to form a pile hole, uniformly distributing and installing a plurality of grouting pipes inside the pile hole in the circumferential direction, enabling the grouting pipes to be 0.2-0.3 meter higher than the ground surface so as to facilitate grouting, and then pouring gravel from a gravel inlet at the top of the pile pipe, then placing a manufactured geogrid cylinder from the top of the pile hole, then pouring the gravels into a geogrid cylinder opening to form a reinforcement hoop gravel pile, and after enabling the gravel pile to be formed for 3-5 days, injecting cement paste from the indwelling grouting pipes by using a high-pressure grouting pump to fill pores in the gravel pile to form a semi-rigid grouting gravel pile. According to the construction method, the gravel pile pipe constructed through the method is simple in structure, the construction method is rapid, simple and convenient, hole wall deformation or collapse cannot be caused, and the construction quality can be effectively guaranteed.
本发明公开了一种加固软弱地基的沉管筋箍碎石桩施工方法，先在地基地面上施工形成桩孔，并在桩孔内部周向均布安装若干注浆管，注浆管高于地面0.2‑0.3m，便于注浆，然后从桩管顶部碎石入口处灌入碎石，接着将制作好的土工格栅筒从桩孔顶部放入，然后土工格栅筒口中灌入碎石形成筋箍碎石桩，碎石桩成桩3‑5天后，使用高压注浆泵从留置的注浆管中注入水泥浆充填碎石桩中的孔隙，形成半刚性的注浆碎石桩。本发明施工的碎石桩桩管结构简单，施工方法快速简便，不会造成孔壁变形或坍塌，施工质量能得到有效保证。
Construction method of immersed tube rib hoop gravel pile for reinforcing soft foundation
The invention discloses a construction method of an immersed tube rib hoop gravel pile for reinforcing a soft foundation. The construction method comprises the following steps of firstly, constructing on a ground foundation surface to form a pile hole, uniformly distributing and installing a plurality of grouting pipes inside the pile hole in the circumferential direction, enabling the grouting pipes to be 0.2-0.3 meter higher than the ground surface so as to facilitate grouting, and then pouring gravel from a gravel inlet at the top of the pile pipe, then placing a manufactured geogrid cylinder from the top of the pile hole, then pouring the gravels into a geogrid cylinder opening to form a reinforcement hoop gravel pile, and after enabling the gravel pile to be formed for 3-5 days, injecting cement paste from the indwelling grouting pipes by using a high-pressure grouting pump to fill pores in the gravel pile to form a semi-rigid grouting gravel pile. According to the construction method, the gravel pile pipe constructed through the method is simple in structure, the construction method is rapid, simple and convenient, hole wall deformation or collapse cannot be caused, and the construction quality can be effectively guaranteed.
本发明公开了一种加固软弱地基的沉管筋箍碎石桩施工方法，先在地基地面上施工形成桩孔，并在桩孔内部周向均布安装若干注浆管，注浆管高于地面0.2‑0.3m，便于注浆，然后从桩管顶部碎石入口处灌入碎石，接着将制作好的土工格栅筒从桩孔顶部放入，然后土工格栅筒口中灌入碎石形成筋箍碎石桩，碎石桩成桩3‑5天后，使用高压注浆泵从留置的注浆管中注入水泥浆充填碎石桩中的孔隙，形成半刚性的注浆碎石桩。本发明施工的碎石桩桩管结构简单，施工方法快速简便，不会造成孔壁变形或坍塌，施工质量能得到有效保证。
Construction method of immersed tube rib hoop gravel pile for reinforcing soft foundation
一种加固软弱地基的沉管筋箍碎石桩施工方法
CAO XIULING (author) / YUE MUCI (author) / CHEN SONG (author) / XU HAIYAN (author) / WANG YUZHANG (author) / LIU KAIYUN (author)
2021-11-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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