A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pile foundation composite grouting device and construction method thereof
The invention discloses a pile foundation combined type grouting device and a construction method of the pile foundation combined type grouting device. Pile foundation combined type grouting sequentially comprises pile side and pile end first-time open type post-grouting, pile side closed type post-grouting and pile side and pile end second-time open type post-grouting. Due to the fact that closed post-grouting is limited by the elastic grout storage bag, the grouting direction, the grouting position, the grouting pressure and the grouting amount of the closed post-grouting can be effectively controlled; the irregular cement slurry stone, the cement soil, the compacted soil and the undisturbed soil are sequentially formed from the side face of the pile foundation to the outer side, the cement soil, the compacted soil and the undisturbed soil are sequentially formed from the pile end to the lower portion, the mechanical property of the soil body around the pile is improved, meanwhile, the irregular cement slurry stone plays a role similar to a steel bar rib in a ribbed steel bar, and the effect is achieved. The bond stress and the occlusal force of soil around the pile are greatly improved, the side resistance of the pile foundation is greatly improved, the length of the pile foundation is reduced, the construction period of the pile foundation is shortened, and the construction cost of the pile foundation is greatly reduced.
本发明公开了一种桩基复合式注浆装置及其施工方法，桩基复合式注浆依次包含桩侧及桩端第一次开式后注浆、桩侧闭式后注浆、桩侧及桩端第二次开式后注浆，本申请在第一次开式后注浆后采用桩侧闭式后注浆，闭式后注浆因其受限于弹性储浆囊，可以有效控制其注浆方向与注浆位置、注浆压力、注浆量；并且从桩基侧面向外侧依次形成不规则水泥浆结石、水泥土、压密土、原状土，从桩端向下方依次形成水泥土、压密土、原状土，提高了桩周土体力学性能，同时不规则水泥浆结石产生类似带肋钢筋中的钢筋肋作用，极大提高桩周土体握裹力及咬合力，大幅提高桩基侧阻力，降低桩基长度，减少桩基施工工期，大幅降低桩基工程造价。
Pile foundation composite grouting device and construction method thereof
The invention discloses a pile foundation combined type grouting device and a construction method of the pile foundation combined type grouting device. Pile foundation combined type grouting sequentially comprises pile side and pile end first-time open type post-grouting, pile side closed type post-grouting and pile side and pile end second-time open type post-grouting. Due to the fact that closed post-grouting is limited by the elastic grout storage bag, the grouting direction, the grouting position, the grouting pressure and the grouting amount of the closed post-grouting can be effectively controlled; the irregular cement slurry stone, the cement soil, the compacted soil and the undisturbed soil are sequentially formed from the side face of the pile foundation to the outer side, the cement soil, the compacted soil and the undisturbed soil are sequentially formed from the pile end to the lower portion, the mechanical property of the soil body around the pile is improved, meanwhile, the irregular cement slurry stone plays a role similar to a steel bar rib in a ribbed steel bar, and the effect is achieved. The bond stress and the occlusal force of soil around the pile are greatly improved, the side resistance of the pile foundation is greatly improved, the length of the pile foundation is reduced, the construction period of the pile foundation is shortened, and the construction cost of the pile foundation is greatly reduced.
本发明公开了一种桩基复合式注浆装置及其施工方法，桩基复合式注浆依次包含桩侧及桩端第一次开式后注浆、桩侧闭式后注浆、桩侧及桩端第二次开式后注浆，本申请在第一次开式后注浆后采用桩侧闭式后注浆，闭式后注浆因其受限于弹性储浆囊，可以有效控制其注浆方向与注浆位置、注浆压力、注浆量；并且从桩基侧面向外侧依次形成不规则水泥浆结石、水泥土、压密土、原状土，从桩端向下方依次形成水泥土、压密土、原状土，提高了桩周土体力学性能，同时不规则水泥浆结石产生类似带肋钢筋中的钢筋肋作用，极大提高桩周土体握裹力及咬合力，大幅提高桩基侧阻力，降低桩基长度，减少桩基施工工期，大幅降低桩基工程造价。
Pile foundation composite grouting device and construction method thereof
一种桩基复合式注浆装置及其施工方法
ZHENG XINGJUN (author) / HE YU (author) / FANG RUI (author) / ZHOU PEIXIN (author) / LI YAO (author)
2024-09-10
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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