内部悬挂荷载作用下波纹钢综合管廊结构特性研究——以河北省衡水市武邑县地下综合管廊工程（一期）为例

钱洪涛; 王延镇; 杨和平; 张钰; 张海力; 刘保东

doi:10.3973/j.issn.2096-4498.2022.S2.017

隧道建设 >

2022 , Vol. 42 >Issue S2: 141 - 150

DOI: https://doi.org/10.3973/j.issn.2096-4498.2022.S2.017

研究与探索

内部悬挂荷载作用下波纹钢综合管廊结构特性研究——以河北省衡水市武邑县地下综合管廊工程（一期）为例

钱洪涛 ,
王延镇 ,
杨和平 ,
张钰 ,
张海力 ,
刘保东

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（1. 中冶京诚工程技术有限公司，北京 100176； 2. 北京交通大学土木建筑工程学院，北京〓100044）

钱洪涛（1981—），男，河北香河人，2007年毕业于北京科技大学，岩土工程专业，硕士，高级工程师，现从事装配式钢制综合管廊受力特性研究。Email： qianhongtao@ceri.com.cn。 *通信作者：张钰， Email： yu1152@foxmail.com。

网络出版日期: 2023-03-24

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Structural Performance of Corrugated Steel Utility Tunnel under Internal Suspended Load: a Case Study on the FirstStage Project of Underground Utility Tunnel in Wuyi County, Hengshui, China

QIAN Hongtao ,
WANG Yanzhen ,
YANG Heping ,
ZHANG Yu ,
ZHANG Haili ,
LIU Baodong

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(1. MCC Capital Engineering & Research Incorporation Limited, Beijing 100176, China; 2. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China)

Online published: 2023-03-24

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摘要

为明确悬挂荷载对波纹钢管廊结构特性的影响，以河北省衡水市武邑县地下综合管廊工程（一期）为依托，采用现场试验和有限元分析相结合的方法，分析悬挂荷载下波纹钢综合管廊的变形及受力情况。研究结果表明： 1）现场试验挂点位置在拱顶90°（两侧各45°）范围以内，悬挂荷载作用下结构变形不大于2 mm，当前设计管线悬挂荷载对结构影响不大； 2）悬挂荷载作用点离拱顶位置越近，结构响应越大，对结构越不利； 3）悬挂荷载存在某一限值，在此之前结构最大应力由覆土恒荷载控制，超过该限值后结构最大应力转为由所施加的悬挂荷载控制； 4）随着悬挂荷载的不断增加，加载点位置出现局部应力屈服，但结构整体承载刚度保持不变。

关键词： 综合管廊; 波纹钢结构; 悬挂荷载; 结构特性; 荷载试验; 有限元模拟

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钱洪涛 , 王延镇 , 杨和平 , 张钰 , 张海力 , 刘保东 .

内部悬挂荷载作用下波纹钢综合管廊结构特性研究——以河北省衡水市武邑县地下综合管廊工程（一期）为例

[J]. 隧道建设, 2022 , 42(S2) : 141 -150 . DOI: 10.3973/j.issn.2096-4498.2022.S2.017

Abstract

To investigate the influence of suspended load on the structural performance of corrugated steel utility tunnel (CSUT), the deformation and stress of the CSUT under suspended load are analyzed by field test and finite element analysis, and a case study is conducted on the firststage project of underground utility tunnel in Wuyi County, Hengshui, Hebei province, China. The results show the following: (1) The hanging point of the field test is within 90° (45° on both sides) of the crown position, and the structural deformation under the suspended load is not greater than 2 mm. The current design pipeline suspended load has little effect on the structure. (2) The closer the suspended load action point to the crown position, the greater the response of the structure, and the more unfavorable to the structure. (3) There is a certain limit value of the suspended load, before which the maximum stress of the structure is controlled by the dead load of the overburden soil. After the limit value is exceeded, the maximum stress of the structure is controlled by the imposed suspended load. (4) With the continuous increase of suspended load, local stress yield occurs at the loading point, but the overall bearing stiffness of the structure remains unchanged.

Key words： utility tunnel; corrugated steel structure; suspended load; structural performance; load test; finite element analysis

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