哈尔滨地铁人防改建工程施工监测技术研究  

Research on Monitoring Technology in the Retrofitting of the Harbin Civil Air-defense Project

作　　者：段宝福[1] 翟成波[1] 李洪春[1] 翁现合[1] 

机构地区：[1]山东省土木工程防灾减灾重点实验室,山东青岛266510

出　　处：《施工技术（下半月）》2012年第12期76-78,86,共4页Construction Technology

摘　　要：根据季节性冻土地区复杂环境下人防改建工程的监测成果,对影响施工安全的主要因素做了综合的分析和探讨。研究成果表明:隧道扩挖施工破坏了原有结构受力平衡,存在应力再次释放的过程,该应力重分布的过程对建筑物沉降和隧道围岩变形影响较小,对地表沉降有一定的影响;冻融现象对暗挖施工区间建筑物沉降和隧道变形基本无影响,但对处于交通要道处的地表沉降影响较大。Based on monitoring results on the retrofitting of air-defense projects under complex environment in seasonal frost zone,the key influence factors on construction safety are comprehensively analyzed and discussed.The research results show that the enlarged digging construction of tunnels damaged the original force equilibrium and generated a second stress release procedure.This stress redistribution had little influence on building settlement and displacement of surrounding rock,but had a certain impact to the ground settlement.The freezing and thawing phenomenon has nearly no influence to the buildings settlements and tunnel deformations,but has a fairly big influence to the ground settlement of main roads.

关 键 词：地铁工程 隧道 冻土 监测 隧道扩挖 

分 类 号：TU927[建筑科学—建筑设计及理论] TU196.1