|本期目录/Table of Contents|

[1]黄强兵,姜紫看,郭瑞,等.地裂缝环境下SRTP埋地管道性状[J].地球科学与环境学报,2019,41(01):107-115.
　HUANG Qiang-bing,JIANG Zi-kan,GUO Rui,et al.Behaviors of SRTP Buried Pipeline Under the Action of Ground Fissure[J].Journal of Earth Sciences and Environment,2019,41(01):107-115.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第41卷
期数:
2019年第01期
页码:
107-115
栏目:
工程地质
出版日期:
2019-01-15

文章信息/Info

Title:
Behaviors of SRTP Buried Pipeline Under the Action of Ground Fissure
文章编号:
1672-6561(2019)01-0107-09
作者:
黄强兵; 姜紫看; 郭瑞; 梁奥
1.长安大学 地质工程与测绘学院，陕西 西安 710054； 2.中铁西南科学研究院有限公司，四川 成都 611731； 3.中交二公局第三工程有限公司，陕西 西安 710016
Author(s):
HUANG Qiang-bing;  JIANG Zi-kan;  GUO Rui;  LIANG Ao
1. School of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054, Shaanxi, China; 2. China Railway Southwest Research Institute Co., Ltd., Chengdu 611731, Sichuan, China; 3. CCCC-SHEC Third Highway Engineering Co., Ltd., Xi’an 710016, Shaanxi, China
关键词:
管道工程; 地裂缝; SRTP埋地管道; 模型试验; 数值模拟; 应力; 变形特征
Keywords:
pipeline engineering;  ground fissure;  SRTP buried pipeline;  model test;  numerical simulation;  force;  deformation characteristic
分类号:
P642.4;TU93+1
DOI:
-
文献标志码:
A
摘要:
摘 要：以陕西西安市政工程中SRTP埋地管道30°斜交穿越地裂缝带为工程背景，基于足尺模型试验和数值模拟计算，研究了地裂缝沉降作用下埋地管道的变形与受力特点。结果表明：地裂缝沉降作用下，SRTP埋地管道沉降位移明显小于或滞后于地层变形，其沉降变形特征具有明显的“衰减效应”；地裂缝作用下，SRTP埋地管道受力变形模式为拉张-挤压弯曲变形模式，位于地裂缝上盘的管道顶部受压应力、底部受拉应力，而位于下盘的管道顶部受拉应力、底部受压应力，具有反对称现象，SRTP埋地管道适应地裂缝大变形的能力较强；地裂缝沉降作用对SRTP埋地管道的纵向影响长度为3.0 m，即上盘1.8 m和下盘1.2 m，在此范围内管道需要采取适当保护措施；地裂缝沉降作用下，管道沿纵向可划分为3段，即上盘沉降段、脱空段和下盘翘曲段，其中，脱空段范围约为1.2 m。
Abstract:
Taking SRTP buried pipeline obliquely crossing the ground fissure belt (30°) in Xi’an of Shaanxi as engineering background, the deformation and stress characteristics of buried pipeline under the settlement action of ground fissure were studied based on the full-scale model test and numerical simulation calculation. The results show that the settlement displacement of SRTP buried pipeline under the settlement action of ground fissure is much less than or lags behind stratum deformation, and this phenomenon has an obvious characteristic of “attenuation effect”; the force deformation mode of SRTP buried pipeline under the settlement action of ground fissure is tension-compression bending, namely, the top of pipeline is in compression at the hanging wall and in tension at the footwall, and the bottom of pipeline is in tension at the hanging wall and in compression at the footwall, indicating an antisymmetric phenomenon and a good performance to adapt to the deformation of ground fissure; the influence scope of SRTP buried pipeline under the settlement action of ground fissure is about 3.0 m, namely, 1.2 m at the footwall and 1.8 m at the hanging wall, so the protective measures of pipeline should be taken in this influence scope; the pipeline under the settlement action of ground fissure can be divided into three sections, including settlement section in the hanging wall, gap section and warping section in the footwall, and the scope of gap section is about 1.2 m.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-08-27;修回日期:2018-10-23
基金项目:国家自然科学基金项目(41372328);中国地质调查局地质调查项目(1212011220187)
作者简介:黄强兵(1972-),男,湖南安化人,教授,工学博士,E-mail:dcdgx24@chd.edu.cn。
更新日期/Last Update: 2019-01-25