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Construction method for rotary excavating cast-in-place pile with ultra-large length-diameter ratio
The invention relates to the technical field of constructional engineering, in particular to a construction method of a rotary excavating cast-in-place pile with an ultra-large length-diameter ratio, which comprises the following steps of: 1, building a rotary excavating drilling rig on site, 2, drilling a hole and sinking the hole, 3, grouting, 4, drilling and filling a protective shell, 5, holding reinforcing steel bars, and 6, pouring concrete. And seventhly, the rotary excavating cast-in-place pile with the ultra-large length-diameter ratio is formed after maintenance. According to the method, the tensile strength and stability of the cast-in-place pile are improved through maintenance treatment, the construction efficiency is greatly improved, the construction period is shortened, and meanwhile the method has the advantages of being high in bearing capacity, wide in application range and the like.
本发明涉及建筑工程技术领域，尤其为超大长径比旋挖灌注桩施工方法，包括如下步骤，第一步现场搭建旋挖钻机，第二步钻洞并洞口下沉，第三步注浆，第四步钻灌护壳，第五步抱钢筋，第六步灌注混凝土，第七步养护后形成超大长径比旋挖灌注桩；本发明实现了通过养护处理，提高灌注桩的抗拉强度和稳定性，大大提高了施工效率，缩短了施工周期，同时具有承载力强，使用范围广等优点。
Construction method for rotary excavating cast-in-place pile with ultra-large length-diameter ratio
The invention relates to the technical field of constructional engineering, in particular to a construction method of a rotary excavating cast-in-place pile with an ultra-large length-diameter ratio, which comprises the following steps of: 1, building a rotary excavating drilling rig on site, 2, drilling a hole and sinking the hole, 3, grouting, 4, drilling and filling a protective shell, 5, holding reinforcing steel bars, and 6, pouring concrete. And seventhly, the rotary excavating cast-in-place pile with the ultra-large length-diameter ratio is formed after maintenance. According to the method, the tensile strength and stability of the cast-in-place pile are improved through maintenance treatment, the construction efficiency is greatly improved, the construction period is shortened, and meanwhile the method has the advantages of being high in bearing capacity, wide in application range and the like.
本发明涉及建筑工程技术领域，尤其为超大长径比旋挖灌注桩施工方法，包括如下步骤，第一步现场搭建旋挖钻机，第二步钻洞并洞口下沉，第三步注浆，第四步钻灌护壳，第五步抱钢筋，第六步灌注混凝土，第七步养护后形成超大长径比旋挖灌注桩；本发明实现了通过养护处理，提高灌注桩的抗拉强度和稳定性，大大提高了施工效率，缩短了施工周期，同时具有承载力强，使用范围广等优点。
Construction method for rotary excavating cast-in-place pile with ultra-large length-diameter ratio
超大长径比旋挖灌注桩施工方法
AI XINYING (author) / XIONG GAO (author) / WU LIU (author) / SU JINBEI (author) / TANG LIANGWEN (author)
2023-08-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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