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A platform for research: civil engineering, architecture and urbanism
Construction method for slope section of underground entrance and exit
The invention relates to the technical field of underground entrance and exit construction, in particular to an underground entrance and exit slope section construction method. Comprising the following steps that a foundation pit is excavated, and after construction of a bottom line of the foundation pit is completed, structural side walls and a top plate are constructed from top to bottom; after the strength of the to-be-built structure reaches 100% of the design strength, the rigidity of a side wall and the rigidity of a top beam of the structure are calculated, and when the stress condition, the deformation condition and the ground surface settlement of the enclosure structure meet the construction requirements, steel supports, influencing pouring of the remaining structure, of the entrance and exit slope section are dismantled; the entrance and exit slope section structure continues to be constructed upwards in a back-building mode, and after the structural concrete strength reaches 100% of the design strength, a top plate, a waterproof layer and a protective layer are constructed; and top plate backfilling is conducted, and when backfilling is conducted to the height of the steel supports, the steel supports are dismantled till backfilling is conducted on the ground. A support changing procedure is canceled, the number of times of segmented backbuilding of the structure is reduced, the construction procedure is optimized, and on-site construction safety and quality management are better facilitated.
本发明涉及地下出入口施工技术领域，特别是一种地下出入口斜坡段施工方法。包括以下步骤：开挖基坑，完成基坑底线处的施工后，从上至下进行结构侧墙和顶板的施工；待回筑结构强度达到设计强度的100%后，对结构侧墙的刚度、冠梁刚度进行计算，当围护结构的受力情况、变形情况、以及地表沉降达到施工要求时，拆除出入口斜坡段影响剩余结构浇筑的钢支撑；继续向上回筑施工出入口斜坡段结构，待结构混凝土强度达到设计强度的100%后，施作顶板、防水层及保护层；顶板回填，当回填至钢支撑的高度时，对该钢支撑进行拆除，直至回填地面。其取消了换撑工序，减少结构分段回筑次数，优化施工工序，更利于现场施工安全及质量的管理。
Construction method for slope section of underground entrance and exit
The invention relates to the technical field of underground entrance and exit construction, in particular to an underground entrance and exit slope section construction method. Comprising the following steps that a foundation pit is excavated, and after construction of a bottom line of the foundation pit is completed, structural side walls and a top plate are constructed from top to bottom; after the strength of the to-be-built structure reaches 100% of the design strength, the rigidity of a side wall and the rigidity of a top beam of the structure are calculated, and when the stress condition, the deformation condition and the ground surface settlement of the enclosure structure meet the construction requirements, steel supports, influencing pouring of the remaining structure, of the entrance and exit slope section are dismantled; the entrance and exit slope section structure continues to be constructed upwards in a back-building mode, and after the structural concrete strength reaches 100% of the design strength, a top plate, a waterproof layer and a protective layer are constructed; and top plate backfilling is conducted, and when backfilling is conducted to the height of the steel supports, the steel supports are dismantled till backfilling is conducted on the ground. A support changing procedure is canceled, the number of times of segmented backbuilding of the structure is reduced, the construction procedure is optimized, and on-site construction safety and quality management are better facilitated.
本发明涉及地下出入口施工技术领域，特别是一种地下出入口斜坡段施工方法。包括以下步骤：开挖基坑，完成基坑底线处的施工后，从上至下进行结构侧墙和顶板的施工；待回筑结构强度达到设计强度的100%后，对结构侧墙的刚度、冠梁刚度进行计算，当围护结构的受力情况、变形情况、以及地表沉降达到施工要求时，拆除出入口斜坡段影响剩余结构浇筑的钢支撑；继续向上回筑施工出入口斜坡段结构，待结构混凝土强度达到设计强度的100%后，施作顶板、防水层及保护层；顶板回填，当回填至钢支撑的高度时，对该钢支撑进行拆除，直至回填地面。其取消了换撑工序，减少结构分段回筑次数，优化施工工序，更利于现场施工安全及质量的管理。
Construction method for slope section of underground entrance and exit
地下出入口斜坡段施工方法
PAN YE (author) / ZHAO WENQIANG (author) / TIAN HAIGUANG (author) / WANG HAILI (author) / DAI ZHIYONG (author) / LUAN XIANBIN (author) / NIU YONGCHANG (author) / REN YANMENG (author) / YU YONGJIE (author) / GUO ZHICHAO (author)
2024-11-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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