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List of products by author: X. Xie
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Damage Identification Method Based On Wavelet Energy Band In Shield Tunnel Structure
Abstract: Rail Transit System is a traffic lifeline of a city. It’s crucial for the health service of the shield tunnel structure on the safe operation of the city. The damage identification of tunnel structure (lining cracking, bolt loosening, concrete deterioration and soil erosion after lining of tunnel) is a key technology in structural health monitoring system. However, it’s very difficult to...
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Deformation and Cracks Sensing Method and Application of Intelligent Electric Duct Bank Structure
Abstract: Duct bank is a widely distributed and shallow buried underground structure. It can easily affected by engineering construction activities. In order to meet the demand of early warning of cracking of concrete and health monitoring of structure. The deformation characteristics of the duct bank was simulated using a three-dimensional finite element method to measure its structural performance....
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Different Effects Analysis of Adjacent Construction to Existing Tunnel in Soft Clay
Abstract: With the continuous development and utilization of urban underground space, new urban tunnels will inevitably affect the formation of nearby existing structures. Methods to minimize the environmental impact induced by adjacent construction have been a hot topic of research in recent years. Based on different cases of adjacent construction to the existing tunnels in Shanghai, many different...
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Intelligent Sensing of Shield Tunneling Information in Real-Time via Mobile Application
Abstract: With the rapid development of urbanization in China, a large amount of metro constructions have been carried out in recent years. Dozens of shield TBMs driving simultaneously in the downtown area has raised up challenges for more efficient construction management. The lack of timely information communication and cooperation between all the participants involved in the project, especially the...
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Methodology and analysis for the automatic tunnel deformation detection based on 3D LiDAR point cloud
Abstract: The tunnel deformation monitoring methodology based on 3D LiDAR (Light Detection and Ranging) data shows broad application prospects in recent years due to the high- quality of acquired massive data. The proposed methodology provides a clear processing flow and comprehensive analysis result with adequate accuracy mainly by three parts: data acquisition, data processing and result analysis....
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Protection of Adjacent Buildings Due to Mixshield Tunnelling in Mixed Ground with Round Gravel and Mudstone
Abstract: The micro-disturbed construction in mix ground is a major challenge in the shield tunnelling construction. The Nanning metro line 1 crossing a mass of buildings is confronted with the challenge of round gravel and mudstone. The settlement control scheme consisting of the selection of TBM, tunnelling parameters optimization was put forward before crossing the buildings. Then the mix proportion...
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Solving Tunnel External Loads Based on Betti’s Reciprocal Theorem
Abstract: Soft ground tunnels are vulnerable to a variety of defects during operation. With rapid development of urban rail systems worldwide, especially in China, tunnel structural health assessment has brought extensive attention. Surrounded by soils and groundwater, tunnels are different from bridges, buildings, roadways and other above-ground structures due to the uncertainties associated with the...
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