长沙市旺东物流园建设对既有铁路隧道的影响评估  

Evaluation for Influence of Changsha Wangdong Logistics Park Construction on Existing Railway Tunnel

作　　者：邓永红 DENG Yonghong(Guangzhou Institute of China Railway Siyuan Survey&Design Group Co.Ltd.,Guangzhou 510060,China)

机构地区：[1]中铁四院集团广州设计院有限公司,广州510600

出　　处：《铁道建筑》2020年第3期47-49,共3页Railway Engineering

摘　　要：长沙市新建旺东物流园周边临近既有铁路,须在石门至长沙铁路北西联络线隧道上填土堆载,并临近隧道进行桥梁桩基施工,对既有铁路隧道造成较大影响。本文通过对铁路隧道的模拟分析进行强度、裂缝、位移等多项指标检算验证,同时提出一系列工程应对措施,以确保铁路隧道安全和列车运行安全。Since the new-build Wangdong logistics park is near the existing railway,filling and loading must be operated on the connective tunnel between the north and the south part of Shimen-Changsha railway,and bridge pile foundations need to be constructed near the tunnel.This will cause a great impact on the existent railway tunnel.This paper will demonstrate various indices regarding strength,cracking and displacement of the railway tunnel,verify them and come up with a series of effective countermeasures in order to ensure the safety and security of railway tunnel and train operation.

关 键 词：铁路隧道 评估 数值模拟 安全 强度 位移 

分 类 号：U215.8[交通运输工程—道路与铁道工程]