A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for excavating earth below existing pipeline
The invention relates to the technical field of earth excavation, and provides an earth excavation construction method below an existing pipeline, which comprises the following steps: positioning and paying off, ground breaking and cleaning work; supporting piles and top beams located at the tops of the supporting piles are constructed on one side of the earthwork to be excavated, pressing beams located at the tops of the top beams are constructed, overhanging steel is installed on the pressing beams, and the overhanging steel is used for bearing the existing pipeline; earth excavation is conducted to a cushion layer in a graded slope open excavation mode, so that a foundation pit used for constructing an underground structure is formed; constructing a truss foundation on the cushion layer below the existing pipeline, mounting a truss on the truss foundation, and supporting the existing pipeline by using the truss; and the support piles are cut and broken, and muck is transported outwards. The method not only effectively solves the problems of difficult coordination work, construction period delay, economic loss and the like caused by dismantling the original pipeline, but also greatly shortens the construction period and reduces the influence on the operation of the high-speed rail station.
本申请涉及土方开挖技术领域，提供了一种既有管线下方土方开挖施工方法，包括以下步骤：定位放线、地面破除及清理工作；在拟开挖土方的一侧施工支护桩以及施工位于支护桩的顶部的冠梁，施工位于冠梁的顶部的压梁，在压梁上安装悬挑钢，利用悬挑钢承托既有管线；采用分级放坡明挖的方式进行土方开挖至垫层，以形成用于施工地下构筑物的基坑；在所述既有管线的下方的垫层上施工桁架基础，将桁架安装在桁架基础之上，利用所述桁架支撑所述既有管线；切割破除支护桩，外运渣土。本发明不仅有效的解决了拆除原有管线带来的协调工作困难、工期延误、经济损失等问题，而且极大的缩短施工工期，减少对高铁站运营的影响。
Construction method for excavating earth below existing pipeline
The invention relates to the technical field of earth excavation, and provides an earth excavation construction method below an existing pipeline, which comprises the following steps: positioning and paying off, ground breaking and cleaning work; supporting piles and top beams located at the tops of the supporting piles are constructed on one side of the earthwork to be excavated, pressing beams located at the tops of the top beams are constructed, overhanging steel is installed on the pressing beams, and the overhanging steel is used for bearing the existing pipeline; earth excavation is conducted to a cushion layer in a graded slope open excavation mode, so that a foundation pit used for constructing an underground structure is formed; constructing a truss foundation on the cushion layer below the existing pipeline, mounting a truss on the truss foundation, and supporting the existing pipeline by using the truss; and the support piles are cut and broken, and muck is transported outwards. The method not only effectively solves the problems of difficult coordination work, construction period delay, economic loss and the like caused by dismantling the original pipeline, but also greatly shortens the construction period and reduces the influence on the operation of the high-speed rail station.
本申请涉及土方开挖技术领域，提供了一种既有管线下方土方开挖施工方法，包括以下步骤：定位放线、地面破除及清理工作；在拟开挖土方的一侧施工支护桩以及施工位于支护桩的顶部的冠梁，施工位于冠梁的顶部的压梁，在压梁上安装悬挑钢，利用悬挑钢承托既有管线；采用分级放坡明挖的方式进行土方开挖至垫层，以形成用于施工地下构筑物的基坑；在所述既有管线的下方的垫层上施工桁架基础，将桁架安装在桁架基础之上，利用所述桁架支撑所述既有管线；切割破除支护桩，外运渣土。本发明不仅有效的解决了拆除原有管线带来的协调工作困难、工期延误、经济损失等问题，而且极大的缩短施工工期，减少对高铁站运营的影响。
Construction method for excavating earth below existing pipeline
一种既有管线下方土方开挖施工方法
CHEN BO (author) / LI GUO (author) / HUANG DEZHAO (author) / WANG BEI (author) / JIANG TAO (author) / ZHANG JINREN (author) / LIAO QIANGLIANG (author) / DENG XIANG (author) / XUE YU (author) / ZENG LINGKUN (author)
2023-11-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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