Simulation Study on the Dynamic Ventilation Control of Single Head Roadway in High‐Altitude Mine Based on Thermal Comfort

Nie, Xingxin; Feng, Shanshan; Shudu, Zhang; Gan, Quan

doi:10.1155/2019/2973504

Cited by 34 publications

(22 citation statements)

References 41 publications

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“…To reduce the rate of tunnel tra c accidents, the highway tunnel illumination system should not only have su cient brightness but also meet the requirements of quality. In recent years, the tunnel illumination system has gradually developed from automation to intellectualization [34]. For the intelligent control method, advanced technologies such as artificial intelligence and neural network are adopted to simulate the brightness inside and outside the tunnel by collecting data.…”

Section: Accident Quantity and Tunnel Lengths According To "Jtg/t D7mentioning

confidence: 99%

Spatialtemporal Characteristics of Tunnel Traffic Accidents in China from 2001 to Present

Sun

Wang

Zhang

et al. 2019

Advances in Civil Engineering

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There are often greater risks in the process of tunnel construction, and because of the unpredictable tunnel features, the risks during tunnel operation are also great. Due to the substantial growth of TTAs during the recent years, the safety issues of the tunnel traffic accidents (TTAs) have become a widely discussed topic in China. This study examined 2703 TTAs that occurred in the expressway tunnels of China, from 2001 to the present. The datasets from these accidents were analyzed in detail to determine the temporal and spatial characteristics of the traffic accidents as well as the source of the traffic accident distributions in the expressway tunnels. According to the analysis results, 58% of TTAs took place in the entrance and exit zones, and the rear end accident is the most common accident. In addition, the special festivals are liable to traffic accidents, especially during the Chinese Spring Festival. In order to reduce the accidents, special traffic service needs to be taken in key periods, the expressway tunnel operation departments should improve the management rules, and all the drivers should be educated to be more careful when they enter the tunnel.

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Section: Accident Quantity and Tunnel Lengths According To "Jtg/t D7mentioning

confidence: 99%

Spatialtemporal Characteristics of Tunnel Traffic Accidents in China from 2001 to Present

Sun

Wang

Zhang

et al. 2019

Advances in Civil Engineering

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“…In addition to the above several fiber materials, there are an army of fiber materials, which have the possibility of being used as high-performance geotextile raw materials, among which the most desirable one is nanofiber. Nanofibers are one of the most advanced materials, which can be easily designed into high-performance materials with unique performance, and can greatly enhance the performance of existing geotextiles [128][129][130][131].…”

Section: High Performance Geotextilesmentioning

confidence: 99%

Review of Application and Innovation of Geotextiles in Geotechnical Engineering

Yao

et al. 2020

Materials

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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.

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“…Postgrouting at the pile end can effectively weaken and eliminate these adverse effects and significantly improve the characteristics of the pile-soil interface. In the process of grouting, with the increased grouting pressure and grouting volume, part of the grout overflows and penetrates into the gap between the pile and surrounding soil [38,39]. After solidification, the strength of soil is increased significantly, which greatly improves the lateral friction.…”

Section: Enhancing the Lateral Frictionmentioning

confidence: 99%

Experiment on Improving Bearing Capacity of Pile Foundation in Loess Area by Postgrouting

Zhou

Xie

2019

Advances in Civil Engineering

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Postgrouting technology is an inevitable trend in the development of bored piles in the loess area. To study the behavior of end resistance, lateral friction, and bearing capacity of postgrouting pile and conventional pile, the mechanism of improving the bearing capacity of postgrouting at the end of pile is analyzed by the static load failure test of pile foundation, combined with the principle of grout-soil interaction and Bingham fluid model. The results show that the grout-soil interaction enhances the strength of pile end soil and promotes the exertion of end resistance; the relative displacement of pile-soil decreases, while the lateral friction increases with the change of the interface property of pile-soil; simultaneously, the climb height of grouting is approximately the theoretical analysis value. In addition, postgrouting can obviously improve the bearing characteristics of the pile so that the settlement of the pile foundation is slowed down and the bearing capacity is increased.

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Simulation Study on the Dynamic Ventilation Control of Single Head Roadway in High‐Altitude Mine Based on Thermal Comfort

Cited by 34 publications

References 41 publications

Spatialtemporal Characteristics of Tunnel Traffic Accidents in China from 2001 to Present

Spatialtemporal Characteristics of Tunnel Traffic Accidents in China from 2001 to Present

Review of Application and Innovation of Geotextiles in Geotechnical Engineering

Experiment on Improving Bearing Capacity of Pile Foundation in Loess Area by Postgrouting

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