A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Down-hole impact high-pressure jet grouting composite pile forming method
The invention provides a down-hole impact high-pressure jet grouting composite pile forming method. The method comprises the steps of S1, pile hole forming, S2, high-pressure jet grouting pile forming and S3, precast pile sinking and specifically comprises the steps that a down-hole hammer is driven by high-pressure air to impact and drill a formed pile hole, meanwhile, an ejector nozzle of a down-the-hole impact high-pressure jet-grouting drilling machine ejects high-pressure jet-grouting cement slurry to cut, stir and reinforce soil around the pile to form a uniform cement-soil mixture, and then a pile hammering machine or a pile static pressing machine is adopted to drive a precast pile with the diameter smaller than the diameter of the formed hole of the down -hole hammer into the bottom of the hole along the center of the high-pressure jet-grouting pile, therefore a composite pile is formed; the pile forming method can be applied to the aspects of foundation treatment, pile foundations, foundation pit supporting, waterproof curtains, elimination or reduction of foundation liquefaction, expansion and shrinkage of expansive soil and the like, has the advantages that the quality is stable and reliable, construction is convenient, the construction period is shortened, materials and construction cost are saved, and the manufacturing cost is reduced.
本发明提供一种潜孔冲击高压旋喷复合桩成桩方法，包括S1桩孔成孔步骤、S2高压旋喷桩成桩步骤和S3预制桩沉入步骤，其步骤在于潜孔锤在高压空气的驱动下冲击钻进成桩孔，同时潜孔冲击高压旋喷钻机的喷射器喷嘴喷射高压旋喷水泥浆对桩周土体进行切割、搅拌、加固，形成均匀的水泥土混合物，然后采用锤击桩机或静压桩机将直径小于潜孔锤成孔孔径的预制桩沿高压旋喷桩中心打入至孔底，从而形成复合桩,该成桩方法可应用于地基处理、桩基础、基坑支护、止水帷幕、消除或减少地基液化和膨胀土的胀缩性等方面，具有质量稳定可靠、施工方便、节省工期、节约材料和施工费用，降低造价等优势。
Down-hole impact high-pressure jet grouting composite pile forming method
The invention provides a down-hole impact high-pressure jet grouting composite pile forming method. The method comprises the steps of S1, pile hole forming, S2, high-pressure jet grouting pile forming and S3, precast pile sinking and specifically comprises the steps that a down-hole hammer is driven by high-pressure air to impact and drill a formed pile hole, meanwhile, an ejector nozzle of a down-the-hole impact high-pressure jet-grouting drilling machine ejects high-pressure jet-grouting cement slurry to cut, stir and reinforce soil around the pile to form a uniform cement-soil mixture, and then a pile hammering machine or a pile static pressing machine is adopted to drive a precast pile with the diameter smaller than the diameter of the formed hole of the down -hole hammer into the bottom of the hole along the center of the high-pressure jet-grouting pile, therefore a composite pile is formed; the pile forming method can be applied to the aspects of foundation treatment, pile foundations, foundation pit supporting, waterproof curtains, elimination or reduction of foundation liquefaction, expansion and shrinkage of expansive soil and the like, has the advantages that the quality is stable and reliable, construction is convenient, the construction period is shortened, materials and construction cost are saved, and the manufacturing cost is reduced.
本发明提供一种潜孔冲击高压旋喷复合桩成桩方法，包括S1桩孔成孔步骤、S2高压旋喷桩成桩步骤和S3预制桩沉入步骤，其步骤在于潜孔锤在高压空气的驱动下冲击钻进成桩孔，同时潜孔冲击高压旋喷钻机的喷射器喷嘴喷射高压旋喷水泥浆对桩周土体进行切割、搅拌、加固，形成均匀的水泥土混合物，然后采用锤击桩机或静压桩机将直径小于潜孔锤成孔孔径的预制桩沿高压旋喷桩中心打入至孔底，从而形成复合桩,该成桩方法可应用于地基处理、桩基础、基坑支护、止水帷幕、消除或减少地基液化和膨胀土的胀缩性等方面，具有质量稳定可靠、施工方便、节省工期、节约材料和施工费用，降低造价等优势。
Down-hole impact high-pressure jet grouting composite pile forming method
潜孔冲击高压旋喷复合桩成桩方法
JIANG SHIQING (author) / JIANG DAWEI (author) / TANG XIANGJUN (author) / WU QINGSONG (author) / LIU DONG (author) / HUANG JUNHUI (author)
2021-10-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2023
Method for detecting pile-forming diameter of high-pressure jet grouting pile
| European Patent Office | 2023
Pile construction process for progressive multi-time hole-forming grouting pile
| European Patent Office | 2021