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A platform for research: civil engineering, architecture and urbanism
Supporting method and supporting structure for cave excavation of gravity dam
The invention discloses a cave dwelling type excavation gravity dam supporting method and structure, and the method comprises the following steps: S1, when a construction hole (28), a grouting adit (29) and a side slope cleaning surface (30) are excavated, arch frames (1) are installed in the construction hole (28) and the grouting adit (29), and a tie bar (2) and a reinforcing mesh (3) are arranged between the adjacent arch frames (1); s2, the arch frame (1) is further fixed through anchor rods (6); s3, carrying out guniting construction on concrete on the surface of the reinforcing mesh (3) to form a first concrete layer (4), and pouring the concrete into the reinforcing mesh (3) in a layered manner to form a second concrete layer (5); s4, the side slope cleaning surface (30) is cleaned, and the side slope cleaning surface (30) is leveled; and S5, a steel support is arranged on the side slope cleaning face (30). The excavation mountain can be reliably supported, and the stability is high.
本发明公开了一种窑洞式开挖重力坝的支护方法以及支护结构，包括以下步骤：S1，开挖施工洞(28)、灌浆平洞(29)和边坡清理面(30)时，在施工洞(28)和灌浆平洞(29)中安装拱架(1)，相邻拱架(1)间设置拉筋(2)和钢筋网(3)；S2，通过锚杆(6)对拱架(1)进一步固定；S3，将混凝土在钢筋网(3)表面喷浆施工，形成第一混凝土层(4)，将混凝土分层灌注在钢筋网(3)内，形成第二混凝土层(5)；S4，对边坡清理面(30)进行清理，并对边坡清理面(30)进行整平；S5，在边坡清理面(30)上设置钢支撑。它可以对开挖山体进行可靠支护，稳定性高。
Supporting method and supporting structure for cave excavation of gravity dam
The invention discloses a cave dwelling type excavation gravity dam supporting method and structure, and the method comprises the following steps: S1, when a construction hole (28), a grouting adit (29) and a side slope cleaning surface (30) are excavated, arch frames (1) are installed in the construction hole (28) and the grouting adit (29), and a tie bar (2) and a reinforcing mesh (3) are arranged between the adjacent arch frames (1); s2, the arch frame (1) is further fixed through anchor rods (6); s3, carrying out guniting construction on concrete on the surface of the reinforcing mesh (3) to form a first concrete layer (4), and pouring the concrete into the reinforcing mesh (3) in a layered manner to form a second concrete layer (5); s4, the side slope cleaning surface (30) is cleaned, and the side slope cleaning surface (30) is leveled; and S5, a steel support is arranged on the side slope cleaning face (30). The excavation mountain can be reliably supported, and the stability is high.
本发明公开了一种窑洞式开挖重力坝的支护方法以及支护结构，包括以下步骤：S1，开挖施工洞(28)、灌浆平洞(29)和边坡清理面(30)时，在施工洞(28)和灌浆平洞(29)中安装拱架(1)，相邻拱架(1)间设置拉筋(2)和钢筋网(3)；S2，通过锚杆(6)对拱架(1)进一步固定；S3，将混凝土在钢筋网(3)表面喷浆施工，形成第一混凝土层(4)，将混凝土分层灌注在钢筋网(3)内，形成第二混凝土层(5)；S4，对边坡清理面(30)进行清理，并对边坡清理面(30)进行整平；S5，在边坡清理面(30)上设置钢支撑。它可以对开挖山体进行可靠支护，稳定性高。
Supporting method and supporting structure for cave excavation of gravity dam
窑洞式开挖重力坝的支护方法以及支护结构
LIU XIAODONG (author) / ZHAO YINGJIU (author) / MA XIAO (author) / CHAI SHAOTAI (author)
2024-05-10
Patent
Electronic Resource
Chinese
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