Integrated Detection of a Complex Underground Water Supply Pipeline System in an Old Urban Community in China

Deng, Shifan; Ma, Shuyue; Zhang, Xiaowen; Zhang, Shiqiang

doi:10.3390/su12041670

Cited by 9 publications

(4 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Underground pipelines encompass essential systems such as drainage, water supply, electricity, communications, gas, and heating, and they are crucial urban infrastructure [1,2]. Due to rapid urbanization and inadequate maintenance, underground pipeline disasters have frequently occurred in China since 1950 [3].…”

Section: Introductionmentioning

confidence: 99%

Tripartite Social Roles of Urban Underground Pipeline Informatization in China

Xie,

Liu,

Feng

et al. 2024

Sustainability

View full text Add to dashboard Cite

Urban underground pipelines (UUPs) are critical infrastructure, and their safe operation has become a key concern in Chinese society. Currently, the tripartite social roles of the local people’s government, pipeline management departments, and the public are crucial in the informatization of urban underground pipelines. In this study, a survey was conducted among 126 professionals and technical personnel involved in underground pipeline informatization across eight cities in different regions of China. A quantitative weighted evaluation model was established using the Project Quantitative Index (PQI) and principal component analysis (PCA) to investigate the value of the tripartite aforementioned social groups in UUP informatization. The results indicate: (1) There is a significant positive correlation between the tripartite social roles and the promotion of UUP informatization. Moreover, the indicators with the highest PQI value are “Establishment of UUP informatization management departments” and “Support the work of the UUP informatization industry association” under the role of the local people’s government. (2) The informatization work of underground pipelines in different cities is affected differently by the tripartite social roles. This suggests that the local people’s government and professional management departments in different cities can proactively leverage their unique advantages in UUP informatization based on their specific circumstances. (3) PCA results showed that the indicators related to the public carried significant weight, indicating that the public also played an important role in UUP informatization. The degree of UUP informatization in the eight studied cities is ranked as follows: Guangzhou > Beijing > Qingdao > Kunming > Shanghai > Chengdu > Wuhan > Sian. This paper further discusses the unique roles and contributions of the tripartite social groups in UUP informatization, aiming to provide decision support for the future construction, management, and safe operation and maintenance of urban underground pipelines in China.

show abstract

Section: Introductionmentioning

confidence: 99%

Tripartite Social Roles of Urban Underground Pipeline Informatization in China

Xie,

Liu,

Feng

et al. 2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…However, as the complexity and detail of pipeline BIM models increase, along with the numerous pipeline variants [15], challenges arise. These challenges are intensified by tight pipeline configurations, overlapping pipeline segments, and complex interactions with other infrastructure elements [16][17][18]. Therefore, rendering pipeline BIM models presents significant challenges.…”

Section: Introduction 1backgroundmentioning

confidence: 99%

A Web3D Rendering Optimization Algorithm for Pipeline BIM Models

Wang,

Huo,

Shen

et al. 2023

Buildings

View full text Add to dashboard Cite

BIM (building information modeling) plays a pivotal role in the construction industry. BIM technology tailored for pipelines offers in-depth semantic information and spatial data, bolstering the utility and implementation of digital twin-associated technologies in both architecture and urban planning. This paper introduces a rendering optimization algorithm rooted in the BSP Tree (Binary Space Partitioning Tree). The algorithm is used to address the challenges of slow loading and poor rendering quality of pipeline BIM models when displayed on the web, which stem from large amounts of model data and complex geometric configurations. Initially, the algorithm delves into the geometric distribution traits of the pipeline BIM model from multiple perspectives, pinpointing the spatial division dimension. Subsequently, it employs an adaptive step size technique for spatial segmentation, harmonizing it with real-world application contexts. Concurrently, any superfluous data that emerge are refined to uphold the structural wholeness of the BIM model. This algorithm is adept at systematically arranging and overseeing the BIM model data. Trial outcomes reveal that the AKDT (Adaptive K-Dimensional Tree) algorithm significantly trims the browser’s initial rendering duration while maintaining the model’s accuracy and semantic uniformity. Moreover, it excels in areas such as rendering frame rate, user interaction responsiveness, and data transmission duration. In essence, the algorithm stands out for its efficiency and precision in rendering pipeline BIM models on web platforms, achieving the desired optimization results.

show abstract

“…The water supply pipeline system is an essential part of urban infrastructure. The safety, stability, reliability, and efficiency of water supply system are crucial to the daily work and lives of the people who depend on it (Deng et al 2020;Chowdhury & Akter 2021). Due to the complex interaction of physical, environmental, and operational factors, the channel may break (Chung et al 2004), and the pressure in the pipeline is very easy to fluctuate significantly, resulting in low pressure or negative pressure.…”

Section: Introductionmentioning

confidence: 99%

Diffusion of point source pollution at the cross joint

Sun

Peng

et al. 2022

Water Supply

View full text Add to dashboard Cite

The cross joint is one of the standard connection types for urban water supply pipelines. The pipeline containing cross joints was taken as the research object using NaCl as the tracer. The turbulent mixing characteristics of water and pollutants at the cross joints and pollutant's migration and diffusion were studied and analysed by numerical analysis and experimental measurement. The primary purpose is to check the comprehensive influence of six factors, such as pipe diameter, inlet flow ratio, outlet flow ratio, location of damage point, flow of brine, and density of brine, on the turbulent mixing of water and brine in the pipeline. The coefficient of variation is used as an evaluation index to evaluate the mixing in the pipeline, and the effective mixing length LEML is used to quantitatively quantify the uniform mixing position of brine in the pipeline. The results show that the inlet flow ratio, outlet flow ratio, and pipe diameter significantly affect LEML in the east outlet of the cross joint. Outlet flow ratio and pipe diameter significantly affect LEML in the cross joint's south outlet direction. In addition, the dimensionless relationship equation representing LEML is fitted through dimensional analysis.

show abstract

Integrated Detection of a Complex Underground Water Supply Pipeline System in an Old Urban Community in China

Cited by 9 publications

References 31 publications

Tripartite Social Roles of Urban Underground Pipeline Informatization in China

Tripartite Social Roles of Urban Underground Pipeline Informatization in China

A Web3D Rendering Optimization Algorithm for Pipeline BIM Models

Diffusion of point source pollution at the cross joint

Contact Info

Product

Resources

About