Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation pit supporting pile construction method under unfavorable geological conditions
The invention discloses a foundation pit supporting pile construction method under unfavorable geological conditions, and solves the problems that in the prior art, a foundation pit supporting pile isdifficult to form and easy to erode in some unfavorable geologies. The foundation pit supporting pile construction method comprises the steps that S1, a foundation pit is punched to form a pluralityof foundation pit holes; S2, steel pipe sleeves are installed in the foundation pit holes; S3, grouting is conducted in a gap between every two adjacent steel pipe sleeves, and a waterproof curtain isformed; S4, reinforcement cages are inserted into the steel pipe sleeves, and concrete is poured into the steel pipe sleeves; and S5, the steel pipe sleeves are pulled out. When the concrete is poured into the steel pipe sleeves, high-pressure grouting is adopted in the gap between every two adjacent steel pipe sleeves to form the waterproof curtain, the foundation pit holes can be stabilized andcannot collapse when foundation pit supporting piles are formed, the foundation pit supporting piles can be prevented from being corroded by water, meanwhile concrete pouring and high-pressure grouting can be conducted at the same time, and the construction period can be shortened to a large extent.
本发明公开了一种不良地质条件下基坑支护桩施工方法，解决了现有技术中在一些不良地质上基坑支护桩成型不易且容易被侵蚀的问题，本基坑支护桩施工方法步骤包括S1：对基坑进行打孔，形成多个基坑孔；S2：将钢管套安装至基坑孔内；S3：在相邻钢套管的间隙中进行注浆，形成止水帷幕；S4：在钢管套内插入钢筋笼，并往钢套管内浇注混凝土；S5：拔出钢套管；通过在对钢管套灌注混凝土的同时，在相邻两个钢管套的间隙中采用高压注浆，形成止水帷幕，既能稳定基坑孔不会在基坑支护桩成型时坍塌，又能防止水侵蚀基坑支护桩，同时灌注混凝土与高压注浆可以同时进行，可以在较大程度上缩短工期。
Foundation pit supporting pile construction method under unfavorable geological conditions
The invention discloses a foundation pit supporting pile construction method under unfavorable geological conditions, and solves the problems that in the prior art, a foundation pit supporting pile isdifficult to form and easy to erode in some unfavorable geologies. The foundation pit supporting pile construction method comprises the steps that S1, a foundation pit is punched to form a pluralityof foundation pit holes; S2, steel pipe sleeves are installed in the foundation pit holes; S3, grouting is conducted in a gap between every two adjacent steel pipe sleeves, and a waterproof curtain isformed; S4, reinforcement cages are inserted into the steel pipe sleeves, and concrete is poured into the steel pipe sleeves; and S5, the steel pipe sleeves are pulled out. When the concrete is poured into the steel pipe sleeves, high-pressure grouting is adopted in the gap between every two adjacent steel pipe sleeves to form the waterproof curtain, the foundation pit holes can be stabilized andcannot collapse when foundation pit supporting piles are formed, the foundation pit supporting piles can be prevented from being corroded by water, meanwhile concrete pouring and high-pressure grouting can be conducted at the same time, and the construction period can be shortened to a large extent.
本发明公开了一种不良地质条件下基坑支护桩施工方法，解决了现有技术中在一些不良地质上基坑支护桩成型不易且容易被侵蚀的问题，本基坑支护桩施工方法步骤包括S1：对基坑进行打孔，形成多个基坑孔；S2：将钢管套安装至基坑孔内；S3：在相邻钢套管的间隙中进行注浆，形成止水帷幕；S4：在钢管套内插入钢筋笼，并往钢套管内浇注混凝土；S5：拔出钢套管；通过在对钢管套灌注混凝土的同时，在相邻两个钢管套的间隙中采用高压注浆，形成止水帷幕，既能稳定基坑孔不会在基坑支护桩成型时坍塌，又能防止水侵蚀基坑支护桩，同时灌注混凝土与高压注浆可以同时进行，可以在较大程度上缩短工期。
Foundation pit supporting pile construction method under unfavorable geological conditions
一种不良地质条件下基坑支护桩施工方法
WANG HUICHUN (Autor:in) / XU LIJUAN (Autor:in) / LI YIKUN (Autor:in)
15.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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