Risk Source Analysis and Grade Division of Subway Tunnel Undercrossing the Existing Highway Subjected to the Complicated Geological Environment

Hu, Dehua; Duan, Jingchuan

doi:10.12783/dteees/peee2016/3941

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Wu et al [6] analyzed the influence of geological environment risk factors on the cost of the Fangshan subway line project. Hu and Duan [7] adopted a fuzzy evaluation method to assess and classify the risk sources for a metro tunnel crossing an existing highway; the study considered the impact of the geological environment on the construction of a metro tunnel as a construction risk. Niu et al [8] introduced the Kent method to evaluate the safety risk in a new subway tunnel that was close to an existing tunnel.…”

Section: Introductionmentioning

confidence: 99%

Environmental Risk Assessment of Subway Station Construction to Achieve Sustainability Using the Intuitionistic Fuzzy Analytic Hierarchy Process and Set Pair Analysis

Wang

Liu

Song

et al. 2021

Discrete Dynamics in Nature and Society

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Environmental risks have a significant impact on the sustainability of subway station construction projects. This paper proposes an environmental risk assessment model based on the intuitionistic fuzzy analytic hierarchy process (IFAHP) and set pair analysis (SPA) to deal with the ambiguity and uncertainty in the assessment. An index system for environmental risk assessment is established based on a literature review and the rough set method. Subsequently, the IFAHP is used to calculate the indicator weights to describe the certainty, uncertainty, and hesitation degree of expert decisions in the weighting calculation by means of affiliation, nonaffiliation, and hesitation. Finally, SPA, which can deal with the randomness, uncertainty, and ambiguity of the indicators, is used to assess environmental risk. A case study of two typical stations (Lushan Avenue Station and Huilong Road West Station) of Metro Line 11 in Chengdu, China, is conducted. The case study results are consistent with field surveys. The evaluation results of the proposed model are more objective and reasonable than those of the traditional analytic hierarchy process, the entropy weight method, fuzzy comprehensive evaluation, grey correlation analysis, and technique for order of preference by similarity to an ideal solution (TOPSIS). The research results prove the scientific validity and superiority of the proposed model.

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Section: Introductionmentioning

confidence: 99%

Environmental Risk Assessment of Subway Station Construction to Achieve Sustainability Using the Intuitionistic Fuzzy Analytic Hierarchy Process and Set Pair Analysis

Wang

Liu

Song

et al. 2021

Discrete Dynamics in Nature and Society

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“…In concentrated areas, subway lines are usually laid along a city's main road, so the subway tunnel or station underpasses the road frequently. In overpass sections, retaining walls are often installed, and subway construction will not only affect road safety [1][2][3], but also threaten the stability and safety of the retaining walls. At present, there have been many studies on the stability of retaining walls, including the stability of retaining walls under static loads [4][5][6], the dynamic response of retaining walls [7][8][9][10][11], the behavior of retaining walls affected by deep excavation [12,13], and the time-dependent behavior of piles and retaining walls as a result of excavationinduced soil movement [14].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Complex Subway Station Construction on High Retaining Walls and Appropriate Countermeasures

Wang

et al. 2020

Advances in Civil Engineering

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Anzhen Bridge Station of Beijing metro line 12, which adopts a separated-island platform constructed by the undermining method, passes along the retaining wall of the North Third Ring Road. A numerical simulation method is adopted to study the deformation laws of the retaining wall under the influence of station construction. The simulation data show that the affected retaining wall will have large settlement and tilt, and countermeasures must be taken. Four countermeasures are formulated, and their control effects are analyzed. The calculation results show that the combination of anchor cables and waist beams can effectively control the tilt of the retaining wall, but the control effect on the absolute settlement is not obvious. The control effect of isolation piles is better than that of foundation grouting. The joint control method of anchor cables combined with waist beams, isolation piles, and deep hole grouting makes the deformation meet the target, and according to this measure, a concept of joint control aiming at the influence of the “source,” “propagation,” and “object” is proposed, which can provide a reference for similar projects with a great difficulty in deformation control.

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Risk Source Analysis and Grade Division of Subway Tunnel Undercrossing the Existing Highway Subjected to the Complicated Geological Environment

Cited by 2 publications

References 2 publications

Environmental Risk Assessment of Subway Station Construction to Achieve Sustainability Using the Intuitionistic Fuzzy Analytic Hierarchy Process and Set Pair Analysis

Environmental Risk Assessment of Subway Station Construction to Achieve Sustainability Using the Intuitionistic Fuzzy Analytic Hierarchy Process and Set Pair Analysis

The Influence of Complex Subway Station Construction on High Retaining Walls and Appropriate Countermeasures

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