Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line

A key aspect of urban blasting engineering is evaluating the safety of the blasting dynamic load on the adjacent high-density polyethylene water supply pipeline and controlling the negative impact of the blasting vibration load on the pipeline. According to the special characteristics of the soil la...

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Autores principales:	Nan Jiang, Yuqi Zhang, Tingyao Wu, Yingkang Yao, Xuedong Luo
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	blasting vibration saturated soft soil HDPE water supply pipeline field test numerical simulation control vibration velocity Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/470bd0fa5d1647ae99e02b3f52466f40
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spelling	oai:doaj.org-article:470bd0fa5d1647ae99e02b3f52466f402021-11-11T19:13:11ZDetermination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line10.3390/s212172521424-8220https://doaj.org/article/470bd0fa5d1647ae99e02b3f52466f402021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7252https://doaj.org/toc/1424-8220A key aspect of urban blasting engineering is evaluating the safety of the blasting dynamic load on the adjacent high-density polyethylene water supply pipeline and controlling the negative impact of the blasting vibration load on the pipeline. According to the special characteristics of the soil layer in Shenzhen coastal city, a field blasting test of a full-scale pre-buried HDPE pipeline was carried out, and the distribution characteristics of the blasting vibration velocity and dynamic strain were analyzed. The finite element model was established by LSDYNA, and the reliability of the calculation model and parameters was verified by comparing with the field test data. At the same time, the dynamic response characteristics of pipelines with different buried depths, operating water conveyance pressures, and diameters under blasting vibration loads were studied. Combined with the circumferential allowable stress control criterion of the pipeline, the safety control standard of the blasting vibration velocity of the HDPE water supply pipeline under different working conditions was proposed. The results show that the circumferential compressive strain of the HDPE pipe is the most affected by blasting vibration, and the pipe with the shortest blasting center distance has the largest response. The vibration velocity and equivalent stress of the pipeline increase with the increase of buried depth, internal pressure, and diameter. The vibration velocity and equivalent stress of the explosion side at the same section of the pipeline are greater than those of the back explosion side. Based on the dimensionless analysis, the vibration velocity prediction model of the buried depth, operating pressure, and diameter of the pipeline is proposed. The safety control velocity of the pipeline is 25 cm/s, and the vibration velocity of the upper surface is 22.5 cm/s according to the Mises yield strength criterion.Nan JiangYuqi ZhangTingyao WuYingkang YaoXuedong LuoMDPI AGarticleblasting vibrationsaturated soft soilHDPE water supply pipelinefield testnumerical simulationcontrol vibration velocityChemical technologyTP1-1185ENSensors, Vol 21, Iss 7252, p 7252 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	blasting vibration saturated soft soil HDPE water supply pipeline field test numerical simulation control vibration velocity Chemical technology TP1-1185
spellingShingle	blasting vibration saturated soft soil HDPE water supply pipeline field test numerical simulation control vibration velocity Chemical technology TP1-1185 Nan Jiang Yuqi Zhang Tingyao Wu Yingkang Yao Xuedong Luo Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line
description	A key aspect of urban blasting engineering is evaluating the safety of the blasting dynamic load on the adjacent high-density polyethylene water supply pipeline and controlling the negative impact of the blasting vibration load on the pipeline. According to the special characteristics of the soil layer in Shenzhen coastal city, a field blasting test of a full-scale pre-buried HDPE pipeline was carried out, and the distribution characteristics of the blasting vibration velocity and dynamic strain were analyzed. The finite element model was established by LSDYNA, and the reliability of the calculation model and parameters was verified by comparing with the field test data. At the same time, the dynamic response characteristics of pipelines with different buried depths, operating water conveyance pressures, and diameters under blasting vibration loads were studied. Combined with the circumferential allowable stress control criterion of the pipeline, the safety control standard of the blasting vibration velocity of the HDPE water supply pipeline under different working conditions was proposed. The results show that the circumferential compressive strain of the HDPE pipe is the most affected by blasting vibration, and the pipe with the shortest blasting center distance has the largest response. The vibration velocity and equivalent stress of the pipeline increase with the increase of buried depth, internal pressure, and diameter. The vibration velocity and equivalent stress of the explosion side at the same section of the pipeline are greater than those of the back explosion side. Based on the dimensionless analysis, the vibration velocity prediction model of the buried depth, operating pressure, and diameter of the pipeline is proposed. The safety control velocity of the pipeline is 25 cm/s, and the vibration velocity of the upper surface is 22.5 cm/s according to the Mises yield strength criterion.
format	article
author	Nan Jiang Yuqi Zhang Tingyao Wu Yingkang Yao Xuedong Luo
author_facet	Nan Jiang Yuqi Zhang Tingyao Wu Yingkang Yao Xuedong Luo
author_sort	Nan Jiang
title	Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line
title_short	Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line
title_full	Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line
title_fullStr	Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line
title_full_unstemmed	Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line
title_sort	determination of blasting vibration safety criterion for hdpe pipeline using vibration and strain data in a coastal metro line
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/470bd0fa5d1647ae99e02b3f52466f40
work_keys_str_mv	AT nanjiang determinationofblastingvibrationsafetycriterionforhdpepipelineusingvibrationandstraindatainacoastalmetroline AT yuqizhang determinationofblastingvibrationsafetycriterionforhdpepipelineusingvibrationandstraindatainacoastalmetroline AT tingyaowu determinationofblastingvibrationsafetycriterionforhdpepipelineusingvibrationandstraindatainacoastalmetroline AT yingkangyao determinationofblastingvibrationsafetycriterionforhdpepipelineusingvibrationandstraindatainacoastalmetroline AT xuedongluo determinationofblastingvibrationsafetycriterionforhdpepipelineusingvibrationandstraindatainacoastalmetroline
_version_	1718431580356083712

Determination of Blasting Vibration Safety Criterion for HDPE Pipeline Using Vibration and Strain Data in a Coastal Metro Line

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