Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of high backfill foundation self-supporting reducing rotary excavating pile
The invention provides a high backfill foundation self-supporting reducing rotary excavating pile construction method. The high backfill foundation self-supporting reducing rotary excavating pile construction method comprises the following steps that S1, geological exploration, site leveling, pile foundation model selection and steel pile casing manufacturing and embedding are conducted; s2, positioning and paying off for the first time, taking a rotary drilling rig in place, performing rotary drilling for the first time, and cleaning a hole; s3, low-grade concrete is poured for the first time; s4, positioning and paying off for the second time, taking the rotary drilling rig in place, performing rotary drilling for the second time, and cleaning the hole; s5, low-grade concrete is poured for the second time; s6, positioning and paying off for the third time, taking the rotary drilling rig in place, performing rotary drilling for the third time, and cleaning the hole; s7, a reinforcement cage is manufactured and embedded, and a pouring guide pipe and a storage hopper are installed; and S8, high-grade concrete is poured to form the pile. The construction problems that in the prior art, a traditional rotary excavating pile cannot be supported on poor foundations such as high backfill soil, and the hole wall of a pile foundation hole is prone to collapse are solved.
本发明提供了一种高回填地基自支护变径旋挖桩施工方法，包括以下步骤：S1:地质勘探、场地整平、桩基选型、制作并埋设钢护筒；S2：第一次定位放线、旋挖钻机就位、第一次旋挖钻进并清孔；S3：第一次浇筑低标号混凝土；S4：第二次定位放线、旋挖钻机就位、第二次旋挖钻进并清孔；S5：第二次浇筑低标号混凝土；S6：第三次定位放线、旋挖钻机就位、第三次旋挖钻进并清孔；S7：制作并埋设钢筋笼、安装浇筑导管及贮料斗；S8：浇筑高标号混凝土成桩，其解决了现有技术中存在的传统旋挖桩在高回填土等不良地基上无法支护，桩基孔的孔壁容易坍塌的施工问题。
Construction method of high backfill foundation self-supporting reducing rotary excavating pile
The invention provides a high backfill foundation self-supporting reducing rotary excavating pile construction method. The high backfill foundation self-supporting reducing rotary excavating pile construction method comprises the following steps that S1, geological exploration, site leveling, pile foundation model selection and steel pile casing manufacturing and embedding are conducted; s2, positioning and paying off for the first time, taking a rotary drilling rig in place, performing rotary drilling for the first time, and cleaning a hole; s3, low-grade concrete is poured for the first time; s4, positioning and paying off for the second time, taking the rotary drilling rig in place, performing rotary drilling for the second time, and cleaning the hole; s5, low-grade concrete is poured for the second time; s6, positioning and paying off for the third time, taking the rotary drilling rig in place, performing rotary drilling for the third time, and cleaning the hole; s7, a reinforcement cage is manufactured and embedded, and a pouring guide pipe and a storage hopper are installed; and S8, high-grade concrete is poured to form the pile. The construction problems that in the prior art, a traditional rotary excavating pile cannot be supported on poor foundations such as high backfill soil, and the hole wall of a pile foundation hole is prone to collapse are solved.
本发明提供了一种高回填地基自支护变径旋挖桩施工方法，包括以下步骤：S1:地质勘探、场地整平、桩基选型、制作并埋设钢护筒；S2：第一次定位放线、旋挖钻机就位、第一次旋挖钻进并清孔；S3：第一次浇筑低标号混凝土；S4：第二次定位放线、旋挖钻机就位、第二次旋挖钻进并清孔；S5：第二次浇筑低标号混凝土；S6：第三次定位放线、旋挖钻机就位、第三次旋挖钻进并清孔；S7：制作并埋设钢筋笼、安装浇筑导管及贮料斗；S8：浇筑高标号混凝土成桩，其解决了现有技术中存在的传统旋挖桩在高回填土等不良地基上无法支护，桩基孔的孔壁容易坍塌的施工问题。
Construction method of high backfill foundation self-supporting reducing rotary excavating pile
一种高回填地基自支护变径旋挖桩施工方法
YANG JING (Autor:in) / MOU MIN (Autor:in) / LUO FUYANG (Autor:in) / REN DAHAO (Autor:in) / CHEN YINHONG (Autor:in)
04.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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