Author
Yao Chongkai
Bio: Yao Chongkai is an academic researcher from Chang'an University. The author has an hindex of 1, co-authored 1 publications receiving 20 citations.
Papers
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TL;DR: In this article, the composition and function of geotextiles in geotechnical engineering are reviewed based on literatures including the most recent data, with emphasis on green geote-xtiles, intelligent geotextextex, and high-performance geoteXtiles.
Abstract: Most geotextiles consist of polymers of polyolefin, polyester or polyamide family, which involve environmental problems related to soil pollution. Geotextiles can be used for at least one of the following functions: Separation, reinforcement, filtration, drainage, stabilization, barrier, and erosion protection. Due to the characteristics of high strength, low cost, and easy to use, geotextiles are widely used in geotechnical engineering such as soft foundation reinforcement, slope protection, and drainage system. This paper reviews composition and function of geotextiles in geotechnical engineering. In addition, based on literatures including the most recent data, the discussion turns to recent development of geotextiles, with emphasis on green geotextiles, intelligent geotextiles, and high-performance geotextiles. The present situation of these new geotextiles and their application in geotechnical engineering are reviewed.
55 citations
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TL;DR: The purpose of this review is to discuss the recent advances in the development and application of yielding supports in squeezing tunnels, and to make recommendations for further research on these supports.
71 citations
TL;DR: In the face of the complicated and changing geological conditions, safety issue is always a primary concern during the construction phase of tunnel in the mountainous regions of China as mentioned in this paper, and safety issues are always a priority during tunnel construction phase.
Abstract: In face of the complicated and changing geological conditions, safety issue is always a primary concern during the construction phase of tunnel in the mountainous regions of China. This Express Let...
51 citations
TL;DR: Wang et al. as mentioned in this paper designed model tests according to the different water source positions and tunnel lining forms to study the collapsibility of loess and the failure behavior of metro tunnel under high-pressure water environment.
49 citations
TL;DR: Wang et al. as discussed by the authors investigated the damage of metro tunnel caused by collapsible loess under the action of local dynamic water (gushing water) and concluded that the formation of water transport channel is the main reason for the difference of tunnel structural response when water gushing occurs at different locations.
Abstract: In the construction of metro tunnels, water gushing accidents caused by the rupture of underground pipeline often occur, and in loess area, the collapsibility of loess makes this problem more complex and difficult. To investigate the damage of metro tunnel caused by collapsible loess under the action of local dynamic water (gushing water), a model experiment was conducted based on the pipeline water gushing accident happened in the construction of metro tunnel located in loess area. Through the study of similar materials of loess and tunnel lining, the test materials and apparatus were prepared according to similarity criterion. By simulating water gushing environment in the loess stratum, this paper analyzed mechanical characteristics of tunnel (water pressure of surrounding rock, contact pressure and internal force of tunnel lining) and deformation of surrounding rock and tunnel. Furthermore, combining with the process of local collapse of loess in the model experiment, it is concluded that the formation of water transport channel is the main reason for the difference of tunnel structural response when water gushing occurs at different locations. Finally, a three-dimensional spatial model of water transport channel in loess stratum under the environment of local water gushing was established to study the rule of water transport.
43 citations
TL;DR: This paper summarizes the current international research and application status of the underground engineering monitoring system from three aspects of data acquisition, data transmission, and data processing and emphatically introduces the mainstream new technology of the monitoring system.
Abstract: Automatic monitoring system is one of the main means to ensure the safety of underground engineering construction This paper summarizes the current international research and application status of the underground engineering monitoring system from three aspects of data acquisition, data transmission, and data processing and emphatically introduces the mainstream new technology of the monitoring system Furthermore, this paper puts forward specific and implementable technical routes based on the current intelligent technology and the challenges faced by future monitoring, which can provide direction and reference for future research, including high-precision real-time acquisition and safe and reliable transmission of monitoring data, multisource data fusion, and the visual intelligent early warning platform
33 citations