Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of underwater anti-floating and anti-cracking arched girder-bottom plate structure
The invention discloses a construction method of an underwater anti-floating and anti-crack arched beam-bottom plate structure, which comprises the following steps: (1) driving steel pipe piles for retaining soil into two banks of a river channel in an underwater foundation pit area, and pouring concrete into the double rows of steel pipe piles to form a bank slope anti-sliding support; (2) sectionally dredging between the two rows of steel pipe piles; (3) arranging a plurality of steel pipe arched beams on the cushion layer; (4) separating fences are arranged on the two sides of the steel pipe arched girder, C20 concrete is poured by 300 cm through a guide pipe method, or concrete is poured through underwater self-leveling non-dispersible concrete; (5) anchor rods are arranged at the roots of the two ends of the steel pipe arched girder, and the anchor rods penetrate through the poured concrete; (6) arranging a transverse prestressed steel beam on the poured concrete, and fixing the transverse prestressed steel beam on the anchor rod; and (7) low-heat C30 concrete is poured on the concrete until the design requirement is met. According to the method, the defects of underwater large-slope large-excavation large-replacement filling are overcome, and the work amount is saved. Underwater construction avoids great investment and risks of slope stability and anti-seepage treatment in dry land construction.
本发明公开了一种水下抗浮抗裂拱梁‑底板结构的施工方法，包括以下步骤：（1）在水下基坑区域的河道两岸打入用于挡土的钢管桩，在双排钢管桩中浇筑混凝土形成岸坡抗滑支护；（2）在两排的钢管桩之间分段清淤；（3）在垫层上设置若干个钢管拱梁；（4）在钢管拱梁的两侧设有分隔围挡，使用导管法浇筑C20混凝土300cm、或使用水下自流平不分散混凝土浇筑混凝土；（5）在钢管拱梁的两端根部设有锚杆，锚杆穿过浇筑的混凝土；（6）在浇筑的混凝土上设置横向预应力钢梁，横向预应力钢梁固定在锚杆上；（7）在混凝土上浇筑低热C30混凝土，直到满足设计要求。本发明解决了水下大放坡大开挖大换填不足，节约了工程量。水下施工避免了干地施工边坡稳定、防渗处理的重大投入与风险。
Construction method of underwater anti-floating and anti-cracking arched girder-bottom plate structure
The invention discloses a construction method of an underwater anti-floating and anti-crack arched beam-bottom plate structure, which comprises the following steps: (1) driving steel pipe piles for retaining soil into two banks of a river channel in an underwater foundation pit area, and pouring concrete into the double rows of steel pipe piles to form a bank slope anti-sliding support; (2) sectionally dredging between the two rows of steel pipe piles; (3) arranging a plurality of steel pipe arched beams on the cushion layer; (4) separating fences are arranged on the two sides of the steel pipe arched girder, C20 concrete is poured by 300 cm through a guide pipe method, or concrete is poured through underwater self-leveling non-dispersible concrete; (5) anchor rods are arranged at the roots of the two ends of the steel pipe arched girder, and the anchor rods penetrate through the poured concrete; (6) arranging a transverse prestressed steel beam on the poured concrete, and fixing the transverse prestressed steel beam on the anchor rod; and (7) low-heat C30 concrete is poured on the concrete until the design requirement is met. According to the method, the defects of underwater large-slope large-excavation large-replacement filling are overcome, and the work amount is saved. Underwater construction avoids great investment and risks of slope stability and anti-seepage treatment in dry land construction.
本发明公开了一种水下抗浮抗裂拱梁‑底板结构的施工方法，包括以下步骤：（1）在水下基坑区域的河道两岸打入用于挡土的钢管桩，在双排钢管桩中浇筑混凝土形成岸坡抗滑支护；（2）在两排的钢管桩之间分段清淤；（3）在垫层上设置若干个钢管拱梁；（4）在钢管拱梁的两侧设有分隔围挡，使用导管法浇筑C20混凝土300cm、或使用水下自流平不分散混凝土浇筑混凝土；（5）在钢管拱梁的两端根部设有锚杆，锚杆穿过浇筑的混凝土；（6）在浇筑的混凝土上设置横向预应力钢梁，横向预应力钢梁固定在锚杆上；（7）在混凝土上浇筑低热C30混凝土，直到满足设计要求。本发明解决了水下大放坡大开挖大换填不足，节约了工程量。水下施工避免了干地施工边坡稳定、防渗处理的重大投入与风险。
Construction method of underwater anti-floating and anti-cracking arched girder-bottom plate structure
一种水下抗浮抗裂拱梁-底板结构的施工方法
KE MINYONG (Autor:in) / HOU LIJUN (Autor:in) / LIU HAIXIANG (Autor:in) / CAO XIAOJUN (Autor:in) / ZHANG JINFENG (Autor:in) / LONG ZHIYONG (Autor:in) / SUN TENGFEI (Autor:in) / FANG SHUCHEN (Autor:in) / TAO CHENGCHENG (Autor:in) / YANG RUI (Autor:in)
15.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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