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A platform for research: civil engineering, architecture and urbanism
Post-grouting device for construction grouting of liquefaction site
The invention relates to the technical field of grouting, in particular to a liquefaction site construction grouting post-grouting device which comprises three grouting pipes which are distributed in an annular array. And the number of the propelling assemblies is three. According to the grouting device after grouting in liquefied site construction, a drill bit can conveniently enter a liquefied soil layer by utilizing the characteristic that the soil of the liquefied soil layer is soft, so that a branch pipe is pushed out of a second propelling pipe along with continuous grouting, and a guide sheet extends out of the second propelling pipe under the acting force provided by a third spring and then is pushed out of the second propelling pipe. Under the resistance of a liquefied soil layer and the pressure of grout, the grout is spread all around and sent out through the second propelling pipe, so that the radiation range during grouting operation is increased, the horizontal combination face of the grout and a dense layer is improved through the spread branch pipe and the extended second propelling pipe, the binding force of the pile side and the dense layer is improved, and the grouting efficiency is improved. The pile side reinforcing force weakened by the liquefied soil layer is increased, the pile side mud jacking effect is improved, and sinking is reduced.
本发明涉及压浆技术领域，具体为一种液化场地施工灌浆后压浆装置，包括三个压浆管，三个所述压浆管呈环形阵列分布；推进组件，所述推进组件设置有三组。该液化场地施工灌浆后压浆装置，利用液化土层土质较为松软的特性，可使钻头方便进入液化土层中，使得随着继续注浆，分支管从第二推进管被推挤出，并在第三弹簧提供的作用力下使导向片从第二推进管中延伸出后，在液化土层的阻力和浆液的压力下向四周展开并通过第二推进管将浆液送出，使得压浆作业时的辐射范围增加，并通过展开的分支管和延伸出第二推进管提高浆液与密实层水平的结合面，提升桩侧与密实层的结合力，从增加因液化土层而削弱的桩侧加固力，提高桩侧压浆的效果减少降沉。
Post-grouting device for construction grouting of liquefaction site
The invention relates to the technical field of grouting, in particular to a liquefaction site construction grouting post-grouting device which comprises three grouting pipes which are distributed in an annular array. And the number of the propelling assemblies is three. According to the grouting device after grouting in liquefied site construction, a drill bit can conveniently enter a liquefied soil layer by utilizing the characteristic that the soil of the liquefied soil layer is soft, so that a branch pipe is pushed out of a second propelling pipe along with continuous grouting, and a guide sheet extends out of the second propelling pipe under the acting force provided by a third spring and then is pushed out of the second propelling pipe. Under the resistance of a liquefied soil layer and the pressure of grout, the grout is spread all around and sent out through the second propelling pipe, so that the radiation range during grouting operation is increased, the horizontal combination face of the grout and a dense layer is improved through the spread branch pipe and the extended second propelling pipe, the binding force of the pile side and the dense layer is improved, and the grouting efficiency is improved. The pile side reinforcing force weakened by the liquefied soil layer is increased, the pile side mud jacking effect is improved, and sinking is reduced.
本发明涉及压浆技术领域，具体为一种液化场地施工灌浆后压浆装置，包括三个压浆管，三个所述压浆管呈环形阵列分布；推进组件，所述推进组件设置有三组。该液化场地施工灌浆后压浆装置，利用液化土层土质较为松软的特性，可使钻头方便进入液化土层中，使得随着继续注浆，分支管从第二推进管被推挤出，并在第三弹簧提供的作用力下使导向片从第二推进管中延伸出后，在液化土层的阻力和浆液的压力下向四周展开并通过第二推进管将浆液送出，使得压浆作业时的辐射范围增加，并通过展开的分支管和延伸出第二推进管提高浆液与密实层水平的结合面，提升桩侧与密实层的结合力，从增加因液化土层而削弱的桩侧加固力，提高桩侧压浆的效果减少降沉。
Post-grouting device for construction grouting of liquefaction site
一种液化场地施工灌浆后压浆装置
ZHANG HAIYUN (author) / HOU XIAOMIN (author) / ZHANG DALONG (author) / WANG HE (author) / ZHANG QIANG (author) / ZHANG LILI (author) / WU ZHAOJUN (author) / ZHAO BO (author) / FAN JIAWEI (author) / YAO MENGYANG (author)
2024-07-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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