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A study on impacts of groundwater seepage on artificial freezing process of gravel strata
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Tianliang Wang, Ya-Meng He, Zhen Wu, Jun-jun Li
Railway Sciences | 2023, 2(1) : 1 - 12
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Railway Sciences | 2023, 2(1): 1-12
• Research paper •
A study on impacts of groundwater seepage on artificial freezing process of gravel strata
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Tianliang Wang, Ya-Meng He, Zhen Wu, Jun-jun Li
Affiliations
  • School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
  • State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, China
  • Jinan Design Institute, China Railway Engineering Consulting Group Co., Ltd., Jinan, China
  • School of Civil Engineering, Shijiazhuang Institute of Railway Technology, Shijiazhuang, China
Published: 2023-03-10 doi: 10.1108/RS-01-2023-0004
Outline
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Purpose

This paper aims to study the impacts of groundwater seepage on artificial freezing process of gravel strata, the temperature field characteristics of the strata, and the strata process, closure time and thickness evolution mechanism of the frozen wall.

Design/methodology/approach

In this paper several laboratory model tests were conducted, considering different groundwater seepage rate.

Findings

The results show that there is a significant coupling effect between the cold diffusion of artificial freezing pipes and groundwater seepage; when there is no seepage, temperature fields upstream and downstream of the gravel strata are symmetrically distributed, and the thickness of the frozen soil column/frozen wall is consistent during artificial freezing; groundwater seepage causes significant asymmetry in the temperature fields upstream and downstream of the gravel strata, and the greater the seepage rate, the more obvious the asymmetry; the frozen wall closure time increases linearly with the increase in the groundwater seepage rate, and specifically, the time length under seepage rate of 5.00 m d-1 is 3.2 times longer than that under no seepage; due to the erosion from groundwater seepage, the thickness of the upstream frozen wall decreases linearly with the seepage velocity, while that of the downstream frozen wall increases linearly, resulting in a saddle-shaped frozen wall.

Originality/value

The research results are beneficial to the optimum design and risk control of artificial freezing process in gravel strata.

Underground works  /  Gravel strata  /  Temperature field  /  Groundwater seepage  /  Artificial freezing  /  Frozen wall
Tianliang Wang, Ya-Meng He, Zhen Wu, Jun-jun Li. A study on impacts of groundwater seepage on artificial freezing process of gravel strata[J]. Railway Sciences, 2023 , 2 (1) : 1 -12 . DOI: 10.1108/RS-01-2023-0004
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Funding
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  • the National Natural Science Foundation of China(51978426)
  • the NSFC Young Scientists Fund(41801277)
  • the Science and Technology Research Program of Hebei Education Department(QN2018072)
  • the Program for High-level Talent Fund of Hebei Province(A201903010)
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Year 2023 volume 2 Issue 1
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Article Info
doi: 10.1108/RS-01-2023-0004
  • Receive Date：2023-01-27
  • Online Date：2026-06-11
  • Published：2023-03-10
Article Data
Affiliations
History
  • Received：2023-01-27
  • Revised：2023-02-03
  • Accepted：2023-02-03
Funding
the National Natural Science Foundation of China(51978426)
the NSFC Young Scientists Fund(41801277)
the Science and Technology Research Program of Hebei Education Department(QN2018072)
the Program for High-level Talent Fund of Hebei Province(A201903010)
Affiliations
    School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
    State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou, China
    Jinan Design Institute, China Railway Engineering Consulting Group Co., Ltd., Jinan, China
    School of Civil Engineering, Shijiazhuang Institute of Railway Technology, Shijiazhuang, China

Corresponding:

Tianliang Wang can be contacted at:
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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