Development and applications of common utility tunnels in China

Wang, Tianyu; Tan, Lihai; Xie, Shaoyin; Ma, Baosong

doi:10.1016/j.tust.2018.03.006

Cited by 151 publications

(40 citation statements)

References 17 publications

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“…With rapid urbanization and pressing demands of efficient utilization of urban underground spaces in China, urban underground utility tunnels have quickly developed. In 2015, the Chinese government selected 10 pilot cities for utility tunnel applications and demonstrations, the Ministry of Finance of China has offered at least 3 years of Earmarked Subsidy Funds to these cities [1]. A Chinese utility tunnel typically houses various kinds of urban lifelines (e.g., gas, heat, and sewer pipelines, water supply pipes, telecommunication cables, and electrical lines).…”

Section: Introductionmentioning

confidence: 99%

Quantitative risk assessment of a natural gas pipeline in an underground utility tunnel

Fang

Bai

et al. 2019

Process Safety Progress

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With rapid urbanization in China, many underground utility tunnels have been established these years. This huge underground construction facilitates city life, but may introduce societal risks due to the installation of high-risk pipelines. Natural gas pipelines have the potential to cause catastrophic accident if a gas leakage and a subsequent explosion occurs. The potential hazards in the gas compartments of a utility tunnel are quite different from those in conventional directly buried gas pipelines. This study developed a dynamic quantitative risk analysis method for natural gas pipelines in a utility tunnel. First, potential accident scenarios of natural gas pipelines situated in a utility tunnel were identified and implemented in a Bow-tie diagram based on case studies of typical gas pipeline accidents and expert experience. Then, a Bayesian network was established from the Bow-tie diagram using a mapping algorithm. Based on a comprehensive analysis of the results of probability updating and sensitivity analysis, critical influencing factors were identified. The proposed framework provides a predictive analysis of the gas pipeline accident evolution process from causes to consequences and examines key challenges in gas pipeline risk management in utility tunnels.where P (NM) is the probability of "Near Miss", P (VS-good) represents the probability of good "Ventilation System", and P (VS-poor) indicates the Probability of poor "Ventilation System".

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Section: Introductionmentioning

confidence: 99%

Quantitative risk assessment of a natural gas pipeline in an underground utility tunnel

Fang

Bai

et al. 2019

Process Safety Progress

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“…Utility tunnels were constructed approximately two centuries ago to solve urban water supply and sewer system problems [2]. Currently, the utility tunnel essentially corresponds to a system that incorporates some or all of the electric power, telecommunication, gas, water supply and other municipal cables and pipelines and monitoring equipment [3]. However, several pipelines and cables are placed in a utility tunnel, which can result in many hidden hazards.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method for Risk Assessment of Cable Fires in Utility Tunnel

et al. 2019

Mathematical Problems in Engineering

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Given the flammability of power cables and the high cost of utility tunnel construction, power cable fires cause serious economic losses and are associated with a negative social impact. In the study, a weighted fuzzy Petri net and an event tree are combined to propose a quantitative evaluation method to mitigate cable fire risks in a utility tunnel. First, cable fire risk factors are analyzed. Given the lack of utility tunnel cable fire historical data, fuzzy theory is used to calculate the failure probability of the primary event. Second, a weighted fuzzy Petri net is used for fuzzy reasoning, and an event tree is used to analyze all possible consequences. Subsequently, the numerical simulation method is used to quantify the loss from the cable fire and thereby quantify the risk of cable fire. Finally, the effect of different risk factors on a cable fire is analyzed to determine the main factors that affect cable fires. Simultaneously, the control ability of different control measures with respect to the fire is analyzed to determine key control measures. A case study of a utility tunnel cable cabin in Liupanshui in Guizhou is employed to validate the utility of the proposed method.

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“…Integrated utility tunnel (IUT) is a livelihood project that enhances the overall carrying capacity of the city and the quality of urbanization [1]. In recent years, the demand for the IUT continued to increase, due to the growing population, awareness of environment protection and need for energy efficiency [2]. China has already piloted the IUT in a batch of cities.…”

Section: Introductionmentioning

confidence: 99%

“…In the past few decades, much research has been done on the digitization and intelligence of utility tunnels. For instance, Wang et al [2] introduced the existing and planned utility tunnels in China from 1959 to 2020. Canto-Perello et al [11][12] pointed out the advantages of utility tunnels, calling for sustainable solutions to service congestion, and developed an expert system that uses color-coded scales, Delphi and analytic hierarchy process (AHP) to analyze criticality and threats on utility tunnels.…”

Section: Introductionmentioning

confidence: 99%

A Novel Communication and Monitoring System for Integrated Utility Tunnel

Han¹,

Shao²,

Wang³

et al. 2019

I2M

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This paper attempts to develop a highly reliable security monitoring system for integrated utility tunnel (IUT). For this purpose, a minimum integrated system (MIS) with multiple sensors was designed to acquire the main parameters in the IUT, including air composition, temperature, pipeline pressure, humidity, and shot video/image of the IUT. Then, each MIS was connected to the software system on the ground via a wired network, forming a wire-based IUT communication and monitoring system. Next, three subsystems were designed on Java, including pipeline operation monitoring subsystem, internal environment monitoring subsystem and security monitoring subsystem. The test results show that the data measured by our method agree well with the actual data in the IUT, indicating that the proposed system can effectively monitor various parameters in the IUT. The research findings lay the basis for intelligent monitoring in smart cities, and mark the future trend of IUT management in Chinese cities.

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Development and applications of common utility tunnels in China

Cited by 151 publications

References 17 publications

Quantitative risk assessment of a natural gas pipeline in an underground utility tunnel

Quantitative risk assessment of a natural gas pipeline in an underground utility tunnel

A Novel Method for Risk Assessment of Cable Fires in Utility Tunnel

A Novel Communication and Monitoring System for Integrated Utility Tunnel

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