Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pile-arch integrated protection structure for shallow-buried unsymmetrical-pressure tunnel portal and construction method
The invention relates to the field of tunnel construction, in particular to a pile-arch integrated protection structure for a shallow-buried unsymmetrical-pressure tunnel portal and a construction method. The pile-arch integrated protection structure for the shallow-buried unsymmetrical-pressure tunnel portal comprises slide-resistant piles, steel bar sleeves, angle steel and pipe shed cover arches, wherein the slide-resistant piles are arranged on both sides of a tunnel portal forming face, the steel bar sleeves and the angle steel are pre-buried in the slide-resistant piles, the pipe shed cover arches are arranged between the slide-resistant piles; both ends of the pipe shed cover arches are welded with the angle steel; the arch parts of the pipe shed cover arches are connected with the slide-resistant piles through connecting steel bars which are inserted into the steel bar sleeves; and the pipe shed cover arches comprise profile steel arch frames which are arranged on the tunnel portal hole forming face, hole opening pipes which are arranged on the top faces of the profile steel arch frames at intervals and concrete which is poured in the space between the top faces of the profile steel arch frames and slide-resistant piles on both sides of the tunnel portal hole forming face. According to the pile-arch integrated protection structure, the problems that in the prior art, accidents such as tunnel top collapse and main body structure cracking are caused because the pipe shed cover arches are easy to slide in the axial direction of a tunnel, the pipe shed cover arches are easy to slide in the side slope direction, and the whole pipe shed cover arches sink are solved.
用于浅埋偏压隧道洞口的桩拱一体化防护结构及施工方法，涉及隧道施工领域，用于浅埋偏压隧道洞口的桩拱一体化防护结构包括布置在隧道洞口成洞面两侧的抗滑桩，预埋在抗滑桩内的钢筋套管和角钢，及设置在抗滑桩之间的管棚套拱；管棚套拱的两端与角钢焊接；管棚套拱的拱部通过插接在钢筋套管内的连接钢筋与抗滑桩连接。管棚套拱包括布设在隧道洞口成洞面的型钢拱架、间隔布设在型钢拱架顶面的孔口管和浇筑在型钢拱架的顶面与隧道洞口成洞面两侧的抗滑桩之间的空间内浇筑有混凝土。本发明解决现有技术中管棚套拱易沿隧道轴向滑移、管棚套拱易沿边坡方向滑移及管棚套拱整体下沉等，导致隧道洞顶坍塌和主体结构开裂等事故的问题。
Pile-arch integrated protection structure for shallow-buried unsymmetrical-pressure tunnel portal and construction method
The invention relates to the field of tunnel construction, in particular to a pile-arch integrated protection structure for a shallow-buried unsymmetrical-pressure tunnel portal and a construction method. The pile-arch integrated protection structure for the shallow-buried unsymmetrical-pressure tunnel portal comprises slide-resistant piles, steel bar sleeves, angle steel and pipe shed cover arches, wherein the slide-resistant piles are arranged on both sides of a tunnel portal forming face, the steel bar sleeves and the angle steel are pre-buried in the slide-resistant piles, the pipe shed cover arches are arranged between the slide-resistant piles; both ends of the pipe shed cover arches are welded with the angle steel; the arch parts of the pipe shed cover arches are connected with the slide-resistant piles through connecting steel bars which are inserted into the steel bar sleeves; and the pipe shed cover arches comprise profile steel arch frames which are arranged on the tunnel portal hole forming face, hole opening pipes which are arranged on the top faces of the profile steel arch frames at intervals and concrete which is poured in the space between the top faces of the profile steel arch frames and slide-resistant piles on both sides of the tunnel portal hole forming face. According to the pile-arch integrated protection structure, the problems that in the prior art, accidents such as tunnel top collapse and main body structure cracking are caused because the pipe shed cover arches are easy to slide in the axial direction of a tunnel, the pipe shed cover arches are easy to slide in the side slope direction, and the whole pipe shed cover arches sink are solved.
用于浅埋偏压隧道洞口的桩拱一体化防护结构及施工方法，涉及隧道施工领域，用于浅埋偏压隧道洞口的桩拱一体化防护结构包括布置在隧道洞口成洞面两侧的抗滑桩，预埋在抗滑桩内的钢筋套管和角钢，及设置在抗滑桩之间的管棚套拱；管棚套拱的两端与角钢焊接；管棚套拱的拱部通过插接在钢筋套管内的连接钢筋与抗滑桩连接。管棚套拱包括布设在隧道洞口成洞面的型钢拱架、间隔布设在型钢拱架顶面的孔口管和浇筑在型钢拱架的顶面与隧道洞口成洞面两侧的抗滑桩之间的空间内浇筑有混凝土。本发明解决现有技术中管棚套拱易沿隧道轴向滑移、管棚套拱易沿边坡方向滑移及管棚套拱整体下沉等，导致隧道洞顶坍塌和主体结构开裂等事故的问题。
Pile-arch integrated protection structure for shallow-buried unsymmetrical-pressure tunnel portal and construction method
用于浅埋偏压隧道洞口的桩拱一体化防护结构及施工方法
YAO ZAIFENG (Autor:in) / HU LIXIN (Autor:in) / JIANG HUIHAO (Autor:in) / LI LIULIAN (Autor:in) / QIN HUILAI (Autor:in) / GUO XIAOHONG (Autor:in) / SUN FENGBO (Autor:in) / CHEN ZHENG (Autor:in) / LIAO MANPING (Autor:in) / HU XIAOCHUAN (Autor:in)
21.09.2021
Patent
Elektronische Ressource
Chinesisch
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