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A platform for research: civil engineering, architecture and urbanism
Main bridge deep foundation pit supporting method
The invention provides a main bridge deep foundation pit supporting method, which is characterized in that the construction of the lower part of a bridge is mainly concentrated in a dry season, and in combination with site practice, when trestle construction is carried out, island building of piers from 175 # to 179 # and shortcut filling construction parallel to a trestle are synchronously carried out, namely, drilling piles of the piers from 175 # to 179 #, a foundation pit cofferdam, a bearing platform, a steel trestle and a steel platform are synchronously constructed, and the construction of the lower part of the bridge is completed. The beneficial time of the dry season is fully utilized to accelerate the construction of the lower engineering of the bridge. The construction method is simple, the supporting effect is good, the foundation pit is in a submerged state when flood exceeding the elevation of the top face of the steel sheet pile occurs, construction of the continuous beam is not affected, the steel sheet pile cofferdam cannot be damaged, accumulated water in the cofferdam can be pumped and drained immediately after the flood (below the elevation of the top face of the steel sheet pile), and the cofferdam can be used normally.
本发明提出一种主桥深基坑支护方法，桥梁下部施工主要集中在枯水季节，结合现场实际采取在栈桥施工的同时，同步进行175#～179#墩筑岛和与栈桥平行的便道填筑施工，即175#～179#墩钻孔桩、基坑围堰、承台与钢栈桥和钢平台同步施工，以充分利用枯水期的有利时间加快桥梁下部工程的施工。本发明的施工方法简单，支护效果好，发生超过钢板桩顶面标高的大洪水时，基坑处于被淹没状态，但既不影响连续梁施工，也不会损坏钢板桩围堰，同时在洪水过后(至钢板桩顶标高以下时)可立即将围堰内积水抽排干净，围堰恢复正常使用。
Main bridge deep foundation pit supporting method
The invention provides a main bridge deep foundation pit supporting method, which is characterized in that the construction of the lower part of a bridge is mainly concentrated in a dry season, and in combination with site practice, when trestle construction is carried out, island building of piers from 175 # to 179 # and shortcut filling construction parallel to a trestle are synchronously carried out, namely, drilling piles of the piers from 175 # to 179 #, a foundation pit cofferdam, a bearing platform, a steel trestle and a steel platform are synchronously constructed, and the construction of the lower part of the bridge is completed. The beneficial time of the dry season is fully utilized to accelerate the construction of the lower engineering of the bridge. The construction method is simple, the supporting effect is good, the foundation pit is in a submerged state when flood exceeding the elevation of the top face of the steel sheet pile occurs, construction of the continuous beam is not affected, the steel sheet pile cofferdam cannot be damaged, accumulated water in the cofferdam can be pumped and drained immediately after the flood (below the elevation of the top face of the steel sheet pile), and the cofferdam can be used normally.
本发明提出一种主桥深基坑支护方法，桥梁下部施工主要集中在枯水季节，结合现场实际采取在栈桥施工的同时，同步进行175#～179#墩筑岛和与栈桥平行的便道填筑施工，即175#～179#墩钻孔桩、基坑围堰、承台与钢栈桥和钢平台同步施工，以充分利用枯水期的有利时间加快桥梁下部工程的施工。本发明的施工方法简单，支护效果好，发生超过钢板桩顶面标高的大洪水时，基坑处于被淹没状态，但既不影响连续梁施工，也不会损坏钢板桩围堰，同时在洪水过后(至钢板桩顶标高以下时)可立即将围堰内积水抽排干净，围堰恢复正常使用。
Main bridge deep foundation pit supporting method
一种主桥深基坑支护方法
MA LIANG (author) / ZHAO HAIBO (author) / GUO JIANJUN (author) / LIU CHENGHONG (author) / CHEN YUBO (author) / LI XUELEI (author) / WANG YINGMEI (author)
2023-06-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2022
| European Patent Office | 2023