A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deep foundation pit excavation process
The invention relates to a deep foundation pit excavation technology, relates to the technical field of construction engineering foundation pit excavation, and aims to solve the problem of displacement of a reinforcement cage caused by transverse extrusion force applied to the reinforcement cage by concrete pouring. The deep foundation pit excavation technology comprises the following steps: S1, support pile construction: S11, marking the position of a pile hole, and burying a pile casing at the marked position of the pile hole; s12, drilling construction is carried out, and mud arm protection is carried out; s13, positioning the reinforcement cage; s14, support pile pouring; s2, the pile head is broken and removed through an annular cutting and splitting method, and a top beam is poured; s3, a waterproof curtain is arranged on the side, away from the deep foundation pit, of the supporting pile; and S4, earthwork on the inner sides of the support piles is excavated, a layered excavation mode is adopted for earthwork excavation, after each layer of earthwork is excavated, holes are drilled in the earthwork between the support piles in an inclined and downward mode, and anchor cables are inserted into the holes and tensioned. The supporting structure has the effect of improving the stability of the supporting structure in the excavation process of the deep foundation pit.
本申请涉及一种深基坑开挖工艺，涉及建筑工程基坑开挖技术领域，为了解决混凝土浇筑会对钢筋笼施加横向挤压力，导致钢筋笼出现移位的问题，其包括S1、支护桩施工，支护桩施工步骤如下：S11、标记桩孔位置，并在桩孔标记的位置埋设护筒；S12、钻孔施工并进行泥浆护臂；S13、钢筋笼定位；S14、支护桩浇筑；S2、采用环切劈裂法将桩头破除，浇筑冠梁；S3、在支护桩远离深基坑的一侧设置止水帷幕；S4、对支护桩内侧的土方开挖，土方开挖采用分层开挖的方式，每层土方开挖后，在支护桩之间的土方内倾斜朝下钻孔，并在孔中插入锚索并张拉。本申请具有提升深基坑在开挖过程中支护结构的稳定性的效果。
Deep foundation pit excavation process
The invention relates to a deep foundation pit excavation technology, relates to the technical field of construction engineering foundation pit excavation, and aims to solve the problem of displacement of a reinforcement cage caused by transverse extrusion force applied to the reinforcement cage by concrete pouring. The deep foundation pit excavation technology comprises the following steps: S1, support pile construction: S11, marking the position of a pile hole, and burying a pile casing at the marked position of the pile hole; s12, drilling construction is carried out, and mud arm protection is carried out; s13, positioning the reinforcement cage; s14, support pile pouring; s2, the pile head is broken and removed through an annular cutting and splitting method, and a top beam is poured; s3, a waterproof curtain is arranged on the side, away from the deep foundation pit, of the supporting pile; and S4, earthwork on the inner sides of the support piles is excavated, a layered excavation mode is adopted for earthwork excavation, after each layer of earthwork is excavated, holes are drilled in the earthwork between the support piles in an inclined and downward mode, and anchor cables are inserted into the holes and tensioned. The supporting structure has the effect of improving the stability of the supporting structure in the excavation process of the deep foundation pit.
本申请涉及一种深基坑开挖工艺，涉及建筑工程基坑开挖技术领域，为了解决混凝土浇筑会对钢筋笼施加横向挤压力，导致钢筋笼出现移位的问题，其包括S1、支护桩施工，支护桩施工步骤如下：S11、标记桩孔位置，并在桩孔标记的位置埋设护筒；S12、钻孔施工并进行泥浆护臂；S13、钢筋笼定位；S14、支护桩浇筑；S2、采用环切劈裂法将桩头破除，浇筑冠梁；S3、在支护桩远离深基坑的一侧设置止水帷幕；S4、对支护桩内侧的土方开挖，土方开挖采用分层开挖的方式，每层土方开挖后，在支护桩之间的土方内倾斜朝下钻孔，并在孔中插入锚索并张拉。本申请具有提升深基坑在开挖过程中支护结构的稳定性的效果。
Deep foundation pit excavation process
一种深基坑开挖工艺
HUANG MINJIE (author) / JIN JIAN (author) / GU HEPING (author)
2024-02-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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