Model Test Analysis of Subsurface Cavity and Ground Collapse Due to Broken Pipe Leakage
Source abstract
Abstract
Urban ground collapse is a common geological disaster characterized by its invisible nature, particularly in China, and results in significant socioeconomic losses and even loss of life. Underground pipeline breakage is the most common factor leading to urban ground collapses. Hence, it is essential to study how different types of pipeline breakages initiate the collapse mechanism. In this study, an indoor model test was conducted to directly observe the process of collapse due to broken pipe leakage. A broken pipe was put into a model box and tested by an experimental device. The results showed that among the different pipeline breakage types, vertical damage had the greatest influence on the degree of cavity development and ground collapse. Similarities were observed in the patterns of cavity evolution development and the extent of ground collapse as well, further revealing the significance of the cavity evolution process in predicting ground collapses.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Geotechnical Engineering and Underground Structures · Geophysical Methods and Applications · Landslides and related hazards
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
Wuhan Center, China Geological Survey, Wuhan 430205, China
Funding
National Natural Science Foundation of China · China Geological Survey Project Foundation · Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan)
References (27)
Show source-provided references
1. Investigation on the phenomena and influence factors of urban ground collapse in China10.1007/s11069-022-05304-z ↗
2. Song, G.C., Ye, Y.C., and Liu, Q.R. (2011). Settlement causation and countermeasure analysis of urban roads in Beijing. Urban Roads Bridges Flood Control, 250–252. (In Chinese).
3. Numerical simulation of ground collapse caused by pipeline breakage in Shanghai
4. Investigation of a large ground collapse, water inrush and mud outburst, and countermeasures during subway excavation in Qingdao: A case study10.1016/j.tust.2021.104127 ↗
5. Investigation of catastrophic ground collapse in Xingtai gypsum mines in China10.1016/j.ijrmms.2008.02.012 ↗
6. Study of ground collapse induced by large-diameter horizontal directional drilling in a sand layer using numerical modeling10.1139/cgj-2014-0388 ↗
7. Land settlement in Bangkok, Thailand10.1016/j.enggeo.2005.10.004 ↗
8. The main causes of land settlement in Ho Chi Minh City10.1016/j.proeng.2016.02.058 ↗
9. Sinking cities in Indonesia: ALOS PALSAR detects rapid settlement due to groundwater and gas extraction10.1016/j.rse.2012.10.015 ↗
10. Seismic and geotechnical study of land subsidence and vulnerability of rural buildings10.4236/ijg.2012.324089 ↗
11. Study of land subsidence around the city of Shiraz
12. Liu, C.M., Wei, H.Y., and Zhang, H.J. (2020). Relationship between urban road collapse and underground pipeline. Urban Geotech. Invest. Surv., 183–187. (In Chinese).
13. Analysis of reasons for urban road collapse and prevention and control countermeasures in recent decade of China
14. CFD-DEM joint calculation and simulation of disaster mechanism of pavement collapse caused by pipeline breakage in urban areas
15. Study on drilling ground collapse induced by groundwater flow and prevention based on a coupled CFD-DEM method10.1007/s12205-022-1061-x ↗
16. Computational fluid dynamic simulation of small leaks in water pipelines for direct leak pressure transduction10.1016/j.compfluid.2011.12.016 ↗
17. A coupled approach for the three-dimensional simulation of pipe breakage in variably saturated soil10.1016/j.jhydrol.2017.10.050 ↗
18. Characterizing pipe breakage with a combination of GPR wave velocity algorithms10.1016/j.tust.2020.103740 ↗
19. Analysis of instability mechanism and induced cause of urban pavement in Xining City, China10.1155/2022/3365402 ↗
20. Geomechanical modelling of sinkcavity development using distinct elements: Model verification for a single void space and application to the Dead Sea area10.5194/se-9-1341-2018 ↗
21. Cavity effect on Rayleigh wave dispersionand P-wave refraction10.1007/s11803-021-2006-y ↗
22. Deep cavity detection using propagation of seismic waves in homogenous halfspace and layered soil media10.1007/s42107-020-00288-2 ↗
23. A coupled discrete element model for the simulation of soil and water flow through an orifice10.1002/nag.2677 ↗
24. Experiment and numerical simulation on seepage failure of sand caused by breakage of underground water pipe10.1088/1755-1315/153/3/032033 ↗
25. Evaluation of defective sewer pipe–induced internal erosion and associated ground deformation using laboratory model test10.1139/cgj-2016-0558 ↗
26. Laboratory evaluation of Scour rate and energy dissipation in Gabion Stepped Weirs with considering the effect of Discharge and tail water depth
27. Ali, H., and Choi, J. (2019). Risk prediction of sinkcavity occurrence for different underground soil curves due to breakage from underground sewer and water pipelines. Sustainability, 12.10.3390/su12010310 ↗