A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of metro open-cut section and underpass tunnel combined construction structure system
The invention relates to a construction method of a subway open-cut section and underpass tunnel combined construction structure system. The construction method comprises the following steps that pile wall construction is conducted; sequentially excavating a foundation pit, constructing a top beam and a reinforced concrete support, arranging two layers of steel pipe supports, and constructing a lower foundation pit support structure; construction is propelled in a segmented mode through the sliding rails; constructing a middle plate; constructing a top plate. The single-box multi-chamber multi-layer frame tunnel construction method has the beneficial effects that a vertical overlapping combined construction mode is adopted, space resources and construction cost are saved, a single-box multi-chamber multi-layer frame tunnel main body structure is based on the principle of vertical layering, horizontal segmentation and layer-by-layer parallel sequential construction from bottom to top, and smooth development of main body structure procedures is facilitated; hidden beams are arranged between the upper-layer middle pipeline gallery and the middle partition wall of the lower subway section, so that the overall stress effect of the structure is improved; a foundation pit on the lower portion of the tunnel is backfilled with cohesive soil, a stable filler layer is formed, and structural damage caused by differential settlement of filler is reduced.
本发明涉及一种地铁明挖区间与下穿隧道合建结构体系的施工方法，包括以下步骤：桩墙施工；依次开挖基坑，施工冠梁和钢筋混凝土支撑、设置两层钢管支撑、施工下部基坑围护结构；通过滑轨分段推进施工；施工中板；施工顶板。本发明的有益效果是：采用上下重叠合建方式，节约空间资源与建设成本，单箱多室多层框架隧道主体结构基于按“竖向分层、水平分段、逐层由下上平行顺筑”的原则，利于主体结构工序顺利开展；上层中间管线廊道与下部地铁区间中隔墙间设置暗梁，提高了结构整体受力效果；隧道下部基坑采用粘性土回填，形成稳定的填料层，减少填料不均匀沉降造成的结构破坏。
Construction method of metro open-cut section and underpass tunnel combined construction structure system
The invention relates to a construction method of a subway open-cut section and underpass tunnel combined construction structure system. The construction method comprises the following steps that pile wall construction is conducted; sequentially excavating a foundation pit, constructing a top beam and a reinforced concrete support, arranging two layers of steel pipe supports, and constructing a lower foundation pit support structure; construction is propelled in a segmented mode through the sliding rails; constructing a middle plate; constructing a top plate. The single-box multi-chamber multi-layer frame tunnel construction method has the beneficial effects that a vertical overlapping combined construction mode is adopted, space resources and construction cost are saved, a single-box multi-chamber multi-layer frame tunnel main body structure is based on the principle of vertical layering, horizontal segmentation and layer-by-layer parallel sequential construction from bottom to top, and smooth development of main body structure procedures is facilitated; hidden beams are arranged between the upper-layer middle pipeline gallery and the middle partition wall of the lower subway section, so that the overall stress effect of the structure is improved; a foundation pit on the lower portion of the tunnel is backfilled with cohesive soil, a stable filler layer is formed, and structural damage caused by differential settlement of filler is reduced.
本发明涉及一种地铁明挖区间与下穿隧道合建结构体系的施工方法，包括以下步骤：桩墙施工；依次开挖基坑，施工冠梁和钢筋混凝土支撑、设置两层钢管支撑、施工下部基坑围护结构；通过滑轨分段推进施工；施工中板；施工顶板。本发明的有益效果是：采用上下重叠合建方式，节约空间资源与建设成本，单箱多室多层框架隧道主体结构基于按“竖向分层、水平分段、逐层由下上平行顺筑”的原则，利于主体结构工序顺利开展；上层中间管线廊道与下部地铁区间中隔墙间设置暗梁，提高了结构整体受力效果；隧道下部基坑采用粘性土回填，形成稳定的填料层，减少填料不均匀沉降造成的结构破坏。
Construction method of metro open-cut section and underpass tunnel combined construction structure system
地铁明挖区间与下穿隧道合建结构体系的施工方法
ZHAO WENGANG (author) / WANG YANG (author) / HUANG BIN (author) / ZHANG ZHI (author) / TIAN KAI (author) / LIU YANZHAO (author) / WANG CHAO (author) / PAN XIAO (author) / OU YUANCHENG (author) / TAI ZHENGYANG (author)
2024-03-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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