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A platform for research: civil engineering, architecture and urbanism
Construction method of shallow-buried and underground-excavated channel cover-excavation reverse construction method under complex conditions
The invention discloses a construction method of a shallow-buried and underground-excavated channel cover-excavation reverse construction method under complex conditions. The construction method comprises the following steps that cast-in-place piles are arranged at intervals in the mode of being tightly attached to preset point positions on the two sides of a channel, cast-in-place bored piles are arranged in the middle of the channel at intervals, and a lattice column is inserted into each middle cast-in-place pile; a soil body above a channel vault is excavated, and first crown beams are arranged at the tops of the cast-in-place piles on the two sides in the length direction of the channel; brackets are arranged on the inner sides of the cast-in-place piles on the two sides; a concrete cushion layer is laid, the two ends of the cushion layer are connected with the brackets on the two sides, a concrete top plate is poured along the upper end face of the concrete cushion layer, and the soil body is backfilled to restore a road; the soil body between a channel top plate and a channel bottom plate is excavated, and the concrete cushion layer is dismantled; and the channel bottom plate, channel side walls and a middle partition wall are poured. According to the construction method, the construction period is shortened, the cost is reduced, the blocking time of construction on existing road traffic is shortened, the influence of channel construction on adjacent building structures is blocked, disturbance of channel construction on surrounding soil bodies is reduced, and the construction safety is improved.
本发明公开了一种复杂条件下浅埋暗挖通道盖挖逆作法施工方法，包括以下步骤：紧贴通道两侧预设点位间隔布置灌注桩，在通道中间间隔设置钻孔灌注桩，并在每个中间灌注桩中插入格构柱；开挖出通道拱顶以上的土体，在两侧灌注桩顶部沿通道长度方向设置第一冠梁；在两侧的灌注桩内侧设置牛腿；铺设混凝土垫层，垫层的两端与两侧的牛腿连接，沿混凝土垫层上端面浇筑混凝土顶板，回填土体恢复道路；开挖通道顶板至通道底板之间的土体，拆除混凝土垫层；浇筑通道底板、通道侧墙和中隔墙。本发明缩短了施工工期，降低了成本，减小了施工对既有道路交通的阻断时间，隔断通道施工对邻近建筑结构的影响，减小通道施工对周边土体的扰动，提升施工安全性。
Construction method of shallow-buried and underground-excavated channel cover-excavation reverse construction method under complex conditions
The invention discloses a construction method of a shallow-buried and underground-excavated channel cover-excavation reverse construction method under complex conditions. The construction method comprises the following steps that cast-in-place piles are arranged at intervals in the mode of being tightly attached to preset point positions on the two sides of a channel, cast-in-place bored piles are arranged in the middle of the channel at intervals, and a lattice column is inserted into each middle cast-in-place pile; a soil body above a channel vault is excavated, and first crown beams are arranged at the tops of the cast-in-place piles on the two sides in the length direction of the channel; brackets are arranged on the inner sides of the cast-in-place piles on the two sides; a concrete cushion layer is laid, the two ends of the cushion layer are connected with the brackets on the two sides, a concrete top plate is poured along the upper end face of the concrete cushion layer, and the soil body is backfilled to restore a road; the soil body between a channel top plate and a channel bottom plate is excavated, and the concrete cushion layer is dismantled; and the channel bottom plate, channel side walls and a middle partition wall are poured. According to the construction method, the construction period is shortened, the cost is reduced, the blocking time of construction on existing road traffic is shortened, the influence of channel construction on adjacent building structures is blocked, disturbance of channel construction on surrounding soil bodies is reduced, and the construction safety is improved.
本发明公开了一种复杂条件下浅埋暗挖通道盖挖逆作法施工方法，包括以下步骤：紧贴通道两侧预设点位间隔布置灌注桩，在通道中间间隔设置钻孔灌注桩，并在每个中间灌注桩中插入格构柱；开挖出通道拱顶以上的土体，在两侧灌注桩顶部沿通道长度方向设置第一冠梁；在两侧的灌注桩内侧设置牛腿；铺设混凝土垫层，垫层的两端与两侧的牛腿连接，沿混凝土垫层上端面浇筑混凝土顶板，回填土体恢复道路；开挖通道顶板至通道底板之间的土体，拆除混凝土垫层；浇筑通道底板、通道侧墙和中隔墙。本发明缩短了施工工期，降低了成本，减小了施工对既有道路交通的阻断时间，隔断通道施工对邻近建筑结构的影响，减小通道施工对周边土体的扰动，提升施工安全性。
Construction method of shallow-buried and underground-excavated channel cover-excavation reverse construction method under complex conditions
一种复杂条件下浅埋暗挖通道盖挖逆作法施工方法
XIE ZHENGBING (author) / KE WENHUI (author) / CHEN ZHIYONG (author) / RONG HUI (author) / ZHU YUTING (author) / YANG LIU (author) / XUE TAN (author) / SHAO HUAN (author) / ZHANG GUOFENG (author)
2021-04-20
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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