软土地区长期不均匀沉降对预制综合管廊的影响研究  

EFFECTS OF SOFT SOIL FOUNDATION WITH LONG-TERM DIFFERENTIAL SETTLEMENT ON PRECAST CONCRETE UTILITY TUNNEL

作　　者：白旭峰 张晶[2] 苏晓果 BAI Xufeng;ZHANG Jing;SU Xiaoguo(North China Municipal Engi.Design ＆ Research Institute,Tianjin 300381,China;School of Civil Engi.and Architecture,Heilongjiang Univ.,Harbin 150080,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300381 [2]黑龙江大学建筑工程学院,哈尔滨150080

出　　处：《低温建筑技术》2018年第10期86-87,共2页Low Temperature Architecture Technology

基　　金：黑龙江省自然科学基金(LC2017025)

摘　　要：为了研究软土地区长期不均匀沉降对预制综合管廊的影响,依据南京和上海地铁的沉降监测数据,采用ANSYS软件建立预制综合管廊的有限元模型,研究不均匀沉降对综合管廊节间裂缝宽度的影响。研究结果表明,软土地区长期不均匀沉降对预制综合管廊节间裂缝影响不能忽略,有可能造成连接螺栓的破坏和防水节点失效,必须采取措施加以避免。In this paper, based on monitored data from Nanjing Metro and Shanghai Metro, the effects of long-term differential settlement in soft soil foundation on precast concrete utility tunnel is investigated. A finite element model of precast concrete utility tunnel is created by using ANSYS to study the effects of differential settlement on the crack width between utility tunnel segments. The results show that the effects of long-term differential settlement in soft soil foundation cannot be neglected, which may contribute to the failures of bolts and waterproof joints, therefore, necessary measures must be taken to prevent these failures.

关 键 词：预制综合管廊 裂缝宽度 软土地基 有限元模 

分 类 号：TU93[建筑科学—结构工程]