不同滑坡体积对水下管道冲击作用研究

doi:10.16265/j.cnki.issn1003-3033.2019.08.018

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (8): 112-117.doi: 10.16265/j.cnki.issn1003-3033.2019.08.018

不同滑坡体积对水下管道冲击作用研究

纪虹^1,2 讲师, 王德起^1,2, 黄维秋^**1,2 教授, 杨克³ 副教授, 刘伟康^1,2, 徐曼琳^1,2

1 江苏省油气储运技术重点实验室,江苏常州 213164;
2 常州大学石油工程学院,江苏常州 213164;
3 常州大学环境与安全工程学院,江苏常州 213164

收稿日期:2018-04-22 修回日期:2019-06-25 发布日期:2020-10-21
通讯作者: ** 黄维秋(1965—),男,福建莆田人,博士,教授,主要从事油气环保安全技术与管理等方面的研究。E-mail:hwq213@cczu.edu.cn。
作者简介:纪虹 (1986—),女,天津人,博士,讲师,主要从事油气储运安全、地质灾害安全等方面的研究。E-mail:jihong_academic@163.com。
基金资助:
国家自然科学基金资助(51704041,51574044);江苏省自然科学基金资助(BK20150269);江苏省研究生科研与实践创新计划项目(SJCX18_0969)。

Impact of different landslide volumes on underwater pipelines

JI Hong^1,2, WANG Deqi^1,2, HUANG Weiqiu^1,2, YANG Ke³, LIU Weikang^1,2, XU Manlin^1,2

1 Jiangsu Key Laboratory of Oil & Gas Storage and Transportation Technology, Changzhou Jiangsu 213164, China;
2 School of Petroleum Engineering, Changzhou University, Changzhou Jiangsu 213164, China;
3 School of Environment and Safety Engineering, Changzhou University, Changzhou Jiangsu 213164, China

Received:2018-04-22 Revised:2019-06-25 Published:2020-10-21

摘要/Abstract

摘要： 为有效评估水下管道安全,保障管道系统的可靠性和完整性,采用物理模型试验方法,研究滑坡涌浪作用下,水下管道壁面处涌浪冲击压力的特征。首先探讨滑坡涌浪发展过程;然后分析管道壁面不同测点处涌浪冲击压力和不同体积滑块对管道壁面处冲击压力的影响;最后得到管道涌浪冲击压力与滑块体积的关系式。结果表明:随着滑块体积增大,管道壁面处最大涌浪冲击压力近似线性增长;由于涌浪的叠加、反射,同一工况下,远端测点的最大涌浪冲击压力大于近端测点;在水深、滑坡入水角度相同时,滑块体积越大,管道测点处最大压力值、压力平均值越大,压力的波动程度越大。

关键词: 水下管道, 滑坡, 涌浪, 物理模型试验, 冲击压力

Abstract: In order to evaluate the safety of underwater pipelines and ensure the reliability and integrity of the pipe system, physical model experiment method is adopted to study the characteristics of surge impact pressure on the pipeline walls under the action of landslide surge. Firstly, the development process of landslide surge was discussed. Then, the impact pressure of surge at different measuring points on the wall of underwater pipelines and the influence of different volume sliders on the impact pressure were analyzed. Finally, the relationship between the surge impact pressure of underwater pipelines and the volumes of sliders was obtained. The results indicate that with the increase of slider volume, the maximum surge impact pressure at the wall increases approximately linearly. The maximum surge impact pressure of the far-end measuring point is greater than that of the near-end measuring point under the same working conditions due to superposition and reflection of the surge. It is also found that the larger the slider volume is, the larger the maximum pressure and average pressure at the measuring point would be and the greater the pressure fluctuation becomes when water depth and landslide water inlet angle remain the same.

Key words: underwater pipeline, landslide, surge, physical model experiment, impact pressure

中图分类号:

X944.4

纪虹, 王德起, 黄维秋, 杨克, 刘伟康, 徐曼琳. 不同滑坡体积对水下管道冲击作用研究[J]. 中国安全科学学报, 2019, 29(8): 112-117.

JI Hong, WANG Deqi, HUANG Weiqiu, YANG Ke, LIU Weikang, XU Manlin. Impact of different landslide volumes on underwater pipelines[J]. China Safety Science Journal, 2019, 29(8): 112-117.

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不同滑坡体积对水下管道冲击作用研究

Impact of different landslide volumes on underwater pipelines

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