地铁隧道施工外文文献翻译

(含：英文原文及中文译文)

文献出处：Cocheril Y. Study on Construction Technology of Multi-Arch Tunnel Group in Urban Underground Railway[J]. Journal of Communications, 2015, 3(4):22-32.

英文原文

Study on Construction Technology of Multi-Arch Tunnel Group in Urban

Underground Railway

Y Cocheril

Abstract

In this paper, the construction method of the multi-arch tunnel group is discussed by using an engineering example of Metro Line 3. In the construction of the subway, the construction technique of changing a multi-arch tunnel into a single-hole tunnel was first proposed. The technical solutions of the single-middle wall and the separated middle-wall structure were compared and selected to meet the requirements of structural safety, construction safety, and economic efficiency. Good technical solutions can provide reference and reference for the design and construction of similar projects in the future. Keywords: multi-arch tunnel group, single middle partition wall, separated middle partition wall, construction technology

Because of the design requirements of the subway tunnel, a variety

of tunnel structures are required. Among them, a multi-arch tunnel segment consisting of unequal cross-linked arches and triple-arched tunnels is often used for the connection of the main line and the crossover line. This article combines the project example according to the geological conditions of the tunnel, the time limit requirements through comparison and selection of the best construction program that can achieve rapid construction and save construction costs.

1 Project Overview

The return line of Sports West Road Station on Metro Line 3 is a complex type of return line from Sports West Road Station. In the section , a tunnel group with unequal spans with double arches and triple arches was set up. Unequal cross-arch tunnel excavation span of 20.1m excavation height of 10.076m cross-vector ratio of 1:0.5 hole lining after the lining of 5.2m large-hole lining after the span of 11.4m in the wall thickness of 1.6m. The triple-arch tunnel excavation span is 19.9m and the 7.885m cross-vector ratio is 1:0.1. The surrounding rock of the section of the multi-arch tunnel is from top to bottom: artificial backfill, red sand and alluvial sand layer, alluvial-diluvial earth, fluvial-lacustrine sedimentary soil, plastic residual soil, hard plastic-hard residue. Soil, weathered rock formations, strong weathered rock formations, weathered layers, and weathered layers. Tunnels through the formation of more homogeneous rock strength, strong bearing capacity and stability. The