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A platform for research: civil engineering, architecture and urbanism
Plug-in type steel pipe jet grouting pile and construction method thereof
The invention discloses a plug-in type steel pipe jet grouting pile and a construction method thereof. The problem that a high-pressure jet grouting pile or a miniature steel pipe pile in mucky soil and soft plastic soil strata is low in single-pile bearing capacity is solved. The construction method comprises the following steps: drilling a hole in a high-pressure jet grouting pile; forming the pile by high-pressure jet grouting; implanting a steel pipe at the position of the core of the jet grouting pile by adopting a vibratory hammer; filling gravel in the steel pipe and embedding a PE (Poly Ethylene) grouting pipe; after the steel pipe jet grouting pile is formed, in the stress process of the pile body, the effects that the rigidity of the steel pipe pile is large and the stress face of the jet grouting pile is large are achieved at the same time. The problem that the rigidity of a rotary jet grouting pile body is insufficient is solved, meanwhile, the problem that the bearing capacity of a miniature steel pipe pile in mucky soil and soft plastic soil strata is small is solved, and the application range of the steel pipe rotary jet grouting pile in building settlement control and building deviation rectification is widened.
本发明公开了一种插入式钢管旋喷桩及其施工方法，解决淤泥质土及软塑土地层中高压旋喷桩或微型钢管桩单桩承载力低的问题。本发明高压旋喷桩引孔→高压旋喷注浆成桩→采用振动锤在旋喷桩桩芯位置植入钢管→钢管内填砾、埋入PE注浆管→压力注浆形成固结体→钢管旋喷桩施工完成。钢管旋喷桩形成后，在桩体受力过程中，同时发挥了钢管桩刚度较大及旋喷桩受力面较大的作用。解决了旋喷桩桩身刚度不足的问题，同时也解决了微型钢管桩在淤泥质土及软塑土地层中承载力偏小的问题，扩大了钢管旋喷桩在建筑沉降控制及建筑物纠偏中的应用。
Plug-in type steel pipe jet grouting pile and construction method thereof
The invention discloses a plug-in type steel pipe jet grouting pile and a construction method thereof. The problem that a high-pressure jet grouting pile or a miniature steel pipe pile in mucky soil and soft plastic soil strata is low in single-pile bearing capacity is solved. The construction method comprises the following steps: drilling a hole in a high-pressure jet grouting pile; forming the pile by high-pressure jet grouting; implanting a steel pipe at the position of the core of the jet grouting pile by adopting a vibratory hammer; filling gravel in the steel pipe and embedding a PE (Poly Ethylene) grouting pipe; after the steel pipe jet grouting pile is formed, in the stress process of the pile body, the effects that the rigidity of the steel pipe pile is large and the stress face of the jet grouting pile is large are achieved at the same time. The problem that the rigidity of a rotary jet grouting pile body is insufficient is solved, meanwhile, the problem that the bearing capacity of a miniature steel pipe pile in mucky soil and soft plastic soil strata is small is solved, and the application range of the steel pipe rotary jet grouting pile in building settlement control and building deviation rectification is widened.
本发明公开了一种插入式钢管旋喷桩及其施工方法，解决淤泥质土及软塑土地层中高压旋喷桩或微型钢管桩单桩承载力低的问题。本发明高压旋喷桩引孔→高压旋喷注浆成桩→采用振动锤在旋喷桩桩芯位置植入钢管→钢管内填砾、埋入PE注浆管→压力注浆形成固结体→钢管旋喷桩施工完成。钢管旋喷桩形成后，在桩体受力过程中，同时发挥了钢管桩刚度较大及旋喷桩受力面较大的作用。解决了旋喷桩桩身刚度不足的问题，同时也解决了微型钢管桩在淤泥质土及软塑土地层中承载力偏小的问题，扩大了钢管旋喷桩在建筑沉降控制及建筑物纠偏中的应用。
Plug-in type steel pipe jet grouting pile and construction method thereof
一种插入式钢管旋喷桩及其施工方法
DENG YU (author) / ZHANG NING (author) / ZHOU WENHAO (author) / ZHAO JINTING (author) / HUANG ZEJUN (author)
2023-10-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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