Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tunnel entering starting construction method for TBM encountering reservoir spillway
The invention discloses a tunnel entering starting construction method for a TBM encountering a reservoir spillway. The tunnel entering starting construction method comprises steps that a site is prepared in the early stage, wherein the site is leveled, a foundation trench is excavated, a foundation is reinforced, a side slope rock-soil body is reinforced, the bottom of a retaining wall is leveled through a concrete cushion layer, a foundation sideline of the retaining wall is measured and released, and the elevation of the cushion layer is rechecked; retaining wall construction is carried out, a retaining wall template is built on one side, far away from the first side slope, outside the tunnel entrance, concrete pouring is carried out, and template removing and maintaining are carried out so as to construct a retaining wall parallel to the extending direction of the tunnel; plain concrete is backfilled to extend a tunnel body, specifically, concrete is poured in an area defined by the retaining wall, the first side slope and the second side slope in a layered mode according to the mountain terrain, and a TBM starting platform is poured behind the backfilled plain concrete; shield launching tunneling is carried out; and a reservoir spillway is reconstructed. The construction method is economical, reasonable, safe, reliable, easy to operate and implement, good in construction quality and small in disturbance to the surrounding environment.
本发明公开了一种TBM遭遇水库溢洪道的进洞始发施工方法，包括前期场地准备：整平场地、开挖基槽、地基加固、边坡岩土体加固、混凝土垫层找平挡墙底部、测量并放出挡墙基础边线、复核垫层标高；挡墙施工：在隧道进洞口外远离第一边坡的一侧搭建挡墙模板、浇筑混凝土、拆模养护，从而施作与隧道延伸方向平行的挡墙；回填素混凝土延长隧道洞身：在挡墙、第一边坡、第二边坡围成的区域内根据山体地形分层浇筑混凝土，并在回填素混凝土的后方浇筑TBM始发平台；盾构始发掘进；改建水库溢洪道。本发明是一种经济合理、安全可靠、易于操作实施、施工质量好、对周边环境扰动小的施工方法。
Tunnel entering starting construction method for TBM encountering reservoir spillway
The invention discloses a tunnel entering starting construction method for a TBM encountering a reservoir spillway. The tunnel entering starting construction method comprises steps that a site is prepared in the early stage, wherein the site is leveled, a foundation trench is excavated, a foundation is reinforced, a side slope rock-soil body is reinforced, the bottom of a retaining wall is leveled through a concrete cushion layer, a foundation sideline of the retaining wall is measured and released, and the elevation of the cushion layer is rechecked; retaining wall construction is carried out, a retaining wall template is built on one side, far away from the first side slope, outside the tunnel entrance, concrete pouring is carried out, and template removing and maintaining are carried out so as to construct a retaining wall parallel to the extending direction of the tunnel; plain concrete is backfilled to extend a tunnel body, specifically, concrete is poured in an area defined by the retaining wall, the first side slope and the second side slope in a layered mode according to the mountain terrain, and a TBM starting platform is poured behind the backfilled plain concrete; shield launching tunneling is carried out; and a reservoir spillway is reconstructed. The construction method is economical, reasonable, safe, reliable, easy to operate and implement, good in construction quality and small in disturbance to the surrounding environment.
本发明公开了一种TBM遭遇水库溢洪道的进洞始发施工方法，包括前期场地准备：整平场地、开挖基槽、地基加固、边坡岩土体加固、混凝土垫层找平挡墙底部、测量并放出挡墙基础边线、复核垫层标高；挡墙施工：在隧道进洞口外远离第一边坡的一侧搭建挡墙模板、浇筑混凝土、拆模养护，从而施作与隧道延伸方向平行的挡墙；回填素混凝土延长隧道洞身：在挡墙、第一边坡、第二边坡围成的区域内根据山体地形分层浇筑混凝土，并在回填素混凝土的后方浇筑TBM始发平台；盾构始发掘进；改建水库溢洪道。本发明是一种经济合理、安全可靠、易于操作实施、施工质量好、对周边环境扰动小的施工方法。
Tunnel entering starting construction method for TBM encountering reservoir spillway
TBM遭遇水库溢洪道的进洞始发施工方法
HUANG MING (Autor:in) / LAN XINGBIN (Autor:in) / LU YAO (Autor:in) / ZHAN JINWU (Autor:in) / DU GUANGZHAO (Autor:in) / LI WEIZHEN (Autor:in) / LIU YUCHUAN (Autor:in) / LONG HUADONG (Autor:in) / LI XU (Autor:in) / LI DAYONG (Autor:in)
25.02.2022
Patent
Elektronische Ressource
Chinesisch
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