Dynamic behaviors of buried reinforced concrete pipelines with gasketed bell-and-spigot joints subjected to tunnel blasting vibration

Xia, Yuqing; Jiang, Nan; Zhou, Chuanbo; Sun, Jinshan; Luo, Xuedong; Wu, Tingyao

doi:10.1016/j.tust.2021.104172

Cited by 11 publications

(5 citation statements)

References 37 publications

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“…According to previous studies, the weakest position of the concrete pipeline with bell-and-spigot is at the joints of the pipeline, so the monitoring points of this experiment are arranged with the joints section of the pipeline. 29,30 The vibration velocity of the pipeline in the field was tested by the blasting vibration tester TC-4850. Three vibration velocity-measuring points D1, D2, and D3 were arranged in the internal section of the pipeline.…”

Section: Full-scale Field Test and Monitoring Schemementioning

confidence: 99%

“…Dynamic response of buried pipeline under blasting vibration is mainly reflected by vibration velocity, stress and strain, 28 and this experiment mainly considers vibration velocity and strain of the concrete pipeline. According to previous studies, the weakest position of the concrete pipeline with bell‐and‐spigot is at the joints of the pipeline, so the monitoring points of this experiment are arranged with the joints section of the pipeline 29,30 …”

Section: Full‐scale Concrete Pipeline Proximity Blast Field Testmentioning

confidence: 99%

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Dynamic response and safety assessment of inner‐wall corroded concrete pipeline in service subjected to blasting vibration

Cao

Jiang

Zhou

et al. 2022

Structural Concrete

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Buried pipelines in urban area are prone to corrosion defects for many years. Ensure the safety of buried corrosion pipelines is a key concern during tunnel blasting excavation. Based on the blasting engineering along Shenzhen Metro Line 12, the field test of full‐scale concrete pipeline adjacent blasting was implemented. The dynamic response of concrete pipeline induced by blasting vibration was analyzed by using the dynamic finite element numerical simulation method, and the reliability of numerical simulation was verified by the field monitoring data. On this basis, considering the corrosion defect morphology of pipeline, the distribution characteristics of peak particle velocity and peak effective stress of concrete pipeline with different corrosion depths, corrosion widths, and corrosion lengths induced by blasting vibration were discussed. The parameter analysis method was used to research the influence of corrosion morphology parameters on the dynamic response of the pipeline, and the corrosion depth of the inner‐wall of the pipeline was defined as the main control parameter of the dynamic response. According to the failure criteria of concrete materials, the safety criterion of corroded concrete pipelines with different service years subjected to blasting vibration was established.

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Section: Full-scale Field Test and Monitoring Schemementioning

confidence: 99%

Section: Full‐scale Concrete Pipeline Proximity Blast Field Testmentioning

confidence: 99%

Dynamic response and safety assessment of inner‐wall corroded concrete pipeline in service subjected to blasting vibration

Cao

Jiang

Zhou

et al. 2022

Structural Concrete

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“…In situ or prototype tests have higher reliability. For example, Yuqing et al [13] conducted prototype tests on the dynamic response characteristics of buried pipes under the action of underground explosions and obtained meaningful data. At present, there are almost no studies in the literature focused on prototype testing to investigate the impact of falling objects on buried pipelines.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Investigation on the Dynamic Response of Buried RC Pipes Induced by Falling Impact

Yao,

Jiang,

Lyu

et al. 2024

Sensors

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Unexpected ground impacts can seriously affect the stability and operational safety of buried pipelines. In this paper, a full-scale modeling test of the dynamic response of a buried concrete pipeline under falling rock impact based on dynamic sensor testing was conducted. A commercially available reinforced concrete pipeline, buried in a clayey soil site, was used, and a 50 kg concrete ball was used to investigate the impact above the pipeline. Considering the purpose of the test, the falling process of the concrete ball and the surface vibration velocity induced by the touchdown of the concrete ball were monitored using a high-speed camera and a vibration signal tester, respectively. The dynamic response signals of the pipe under surface impact were tested using strain gauges and earth pressure gauges combined with dynamic sensors such as dynamic signal tester, and the dynamic response law was analyzed. The experimental results will provide a basis for the design of the impact resistance of reinforced concrete pipes.

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“…Blasting risks can be controlled and preempted depending on the specifc environmental conditions encountered during construction, ensuring the safety of road clearing operations and reducing the interference with the surrounding environment. Under the same blasting vibration intensities, the lower the main vibration frequency, the closer it is to the selfvibration frequency of the protective object, and the greater the possibility of causing damage to the building (structure) [9,10]. Terefore, by reducing the maximum detonation dosage of a single sound and shortening the delay time, the main vibration frequency can be efectively increased, so as to improve the safety of blasting vibration.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Frequency Modulation Damping Effect of Digital Detonator in Road Clearance Blasting

Gao

Cheng

Ren

et al. 2023

Shock and Vibration

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To measure and evaluate the impact of vibration on the surrounding buildings and structures during highway rock burst removal and to formulate scientific and reasonable protective technical measures, the authors used the blasting perilous rock removal project of the K2227+920–K2228+000 section of the Shaanxi G316 road as a case study. The application of frequency modulation blasting vibration damping technology adopting digital electronic detonators was investigated. The difference in vibration peak and frequency between the perforation-by-hole initiation of the detonator and the frequency modulation initiation of the digital electronic detonator is compared. The results showed that by adopting an accurate delay of digital electronic detonators and the damping scheme of adjusting the blasting vibration frequency using the electronic detonators a reduction in blasting vibration velocity can be achieved. For an unchanged blasting scale, hole mesh parameters, and explosive unit consumption, the total blasting time was adjusted in the test. Compared to the hole-by-hole initiation, the blasting vibration velocity at a pier of the G85 Baohan highway bridge located 52 m away was reduced from 0.367 cm/s to 0.229 cm/s, a decrease of 36.7%. The field test demonstrated that frequency modulation and vibration attenuation using digital detonators can reduce blasting vibrations and effectively reduce the influence of blasting construction on surrounding buildings and structures.

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Dynamic behaviors of buried reinforced concrete pipelines with gasketed bell-and-spigot joints subjected to tunnel blasting vibration

Cited by 11 publications

References 37 publications

Dynamic response and safety assessment of inner‐wall corroded concrete pipeline in service subjected to blasting vibration

Dynamic response and safety assessment of inner‐wall corroded concrete pipeline in service subjected to blasting vibration

An Experimental Investigation on the Dynamic Response of Buried RC Pipes Induced by Falling Impact

Experimental Study on Frequency Modulation Damping Effect of Digital Detonator in Road Clearance Blasting

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