STUDY ON CHARACTERISTICS OF UPLIFT-BEARING CAPACITY AND INFLUENCE FACTORS OF TUNNEL ANCHORAGE

LIAO Mingjin; AN Wen; TANG Hua; DENG Qin; YU Shangyang

doi:10.13204/j.gyjzG19082020

Volume 51 Issue 4

Aug. 2021

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(4): 139-147

CHEN Yang, NING Jian, REN Chong, YANG Yong. Numerical Study on Shear Performance of Grouped Large Headed Stud Connectors in Prefabricated Steel-Thin UHPC Composite Girder[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(12): 164-174. doi: 10.13204/j.gyjzG23070905

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LIAO Mingjin, AN Wen, TANG Hua, DENG Qin, YU Shangyang. STUDY ON CHARACTERISTICS OF UPLIFT-BEARING CAPACITY AND INFLUENCE FACTORS OF TUNNEL ANCHORAGE[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(4): 139-147. doi: 10.13204/j.gyjzG19082020

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STUDY ON CHARACTERISTICS OF UPLIFT-BEARING CAPACITY AND INFLUENCE FACTORS OF TUNNEL ANCHORAGE

doi: 10.13204/j.gyjzG19082020

1. Wuhan University of Science and Technology, Wuhan 430065, China;
2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

Received Date: 2019-08-20
Available Online: 2021-08-19

Abstract

Abstract

Tunnel anchorage of suspension bridges is the key components bearing loads from main cables. The bearing capacity of tunnel anchorage was mainly influenced by the parameters of surrounding rocks, embedment depth and the appearance of anchor blocks. In order to further verify the inherent laws and parameter sensitivity, considering the influence factors such as embedment, length of anchor blocks and surrounding rock classification, indoor model tests of tunnel anchorage were designed and conducted, and the effects of the influence factors on the uplift bearing capacity for tunnel anchorage were studied. Based on the related parameters of the indoor model tests, numerical simulations for the indoor model tests were conducted. The results showed the numerical simulation results were in good agreements with the results by the model tests, and the influence factors and the damage characteristics obtained by the model tests were in accordance with the results from the numerical simulations. The main influence factors of the uplift-bearing capacity for tunnel anchorage were the classification of surrounding rock, embedment and bottom angles of anchor blocks, and the influence of the length for the anchor blocks was not obvious.
- tunnel anchor,
- bearing capacity,
- model test,
- numerical simulation,
- influence factors

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References(20)

References

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