Creep and Control of the Deep Soft Rock Roadway (DSRR): Insights from Laboratory Testing and Practice in Pingdingshan Mining Area

Chen, Xuyang; Wang, Xufeng; Zhang, Dongsheng; Qin, Dongdong; Wang, Ya; Wang, Jiyao; Chang, Zechao

doi:10.1007/s00603-021-02670-1

Cited by 24 publications

(7 citation statements)

References 27 publications

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“…Case studies like those of the Men Keqing coal mine by Ma et al [9] and the Shandong Anju coal mine by Zhang et al [10] serve as benchmarks, contributing to the development of effective excavation and support strategies under diverse geological conditions. Additionally, studies on foundation pileanchor systems and the behavior of deep soft rock, such as those conducted by Li et al [11] and Xuyang et al [12], have provided valuable preventive strategies and insights into support design for urban construction and mining applications.…”

Section: Literature Reviewmentioning

confidence: 99%

Expression and Analysis of Uncertainty in Deep Foundation Pit Design Scheme Decision-Making

Cui,

Wang,

Chen

et al. 2024

Advances in Civil Engineering

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The burgeoning urbanization of major cities has precipitated a critical examination of deep foundation pit projects, with escalating costs, protracted construction phases, complex site conditions, and specialized technical requirements. Selecting the optimal design scheme from multiple alternatives in a multiattribute decision-making environment poses a significant challenge. This study presents a novel model tailored for the design of deep foundation pits in design-build (DB) contracting projects. The model combines multiattribute ideal point theory with the analytic hierarchy process to evaluate 22 key factors and their uncertainties. It computes the deviations of potential design schemes from ideal benchmarks across all considered attributes. By employing the lexicographic hierarchy aggregation operator, the model aggregates group-level deviations and linguistically weighted evaluations to calculate a comprehensive score for each design scheme. This approach aids in identifying the most suitable design to meet the deep foundation requirements of DB projects. The effectiveness of the model is demonstrated through its application in the decision-making process for a commercial hotel’s deep foundation pit design scheme. The empirical findings affirm the model’s ability to identify critical factors and accurately assess their impact on engineering design decisions in DB contracting projects. Among the four evaluated designs, the continuous retaining wall scheme achieved the lowest group deviation score, marking it as the preferred option. Consequently, this research offers a robust framework for making informed decisions in the design of deep foundation pits within DB contracting projects, effectively handling the complexities of uncertain linguistic evaluations and the collaboration of multiple attributes.

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Section: Literature Reviewmentioning

confidence: 99%

Expression and Analysis of Uncertainty in Deep Foundation Pit Design Scheme Decision-Making

Cui,

Wang,

Chen

et al. 2024

Advances in Civil Engineering

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“…Wang Q [ 28 , 29 ]proposed two methods—roof cutting combined with energy-absorbing anchor rods and square steel-constrained concrete systems—to control roadway deformation. Qin DD [ 30 ] and Chen XY [ 31 ] proposed an internal and external load-bearing structure that affect the stability of roadway surrounding rock and advocated the use of combined support to control the deformation of roadway. Dong LJ [ 32 ] uses traveltime tomography to early identify abnormal areas of complex rock mass geological structures and better predict potential risks in roadways.…”

Section: Introductionmentioning

confidence: 99%

Controlled reconstruction and application research of lateral overlying strata structure in high-gas mines with thick-hard roofs for a fully-mechanized top-caving face

Chang,

Wang,

Qin

et al. 2024

Heliyon

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“…Xiaojie Yang [6] proposed the concept of "cutting and reducing pressure on adjacent tunnel roof". Xuyang Chen [7] studied the constitutive equation of the creep behavior of sandy mudstone and proposed corresponding solutions to improve the stability of the tunnel. Ming Ji [8] analyzed the radial variation of stress and displacement in tunnel surrounding rock.…”

Section: Introductionmentioning

confidence: 99%

Study of Overlying Rock Structure and Intensive Pressure Control Technology of Island Longwall Panel in Extra-Thick Coal Seams

Wang,

Chen,

Wang

2023

Processes

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In response to the severe occurrence of mining pressure in the fully mechanized top coal caving face of the extra-thick coal seam and the problem of strong rock pressure caused by the remaining coal pillars in the mining area on the isolated island fully mechanized top coal caving face, taking the 8102 isolated island working face of Tongxin Coal Mine as the background and by using methods such as on-site measurement and numerical simulation experiments, the characteristics of roof mining in the island longwall panel of extra-thick coal seams were analyzed. Establishing a mechanical model for the mining stress and overlying rock stress arch of an isolated working face, the mechanical characteristics of the isolated working face under special conditions were obtained. The results show that the longwall panel no. 8102 has an asymmetric long-arm T-shaped covering layer structure before mining and a C-shaped covering rock structure during mining, which will exacerbate the degree of mining pressure manifestation in the working face. Directional high-pressure hydraulic fracturing was implemented in the gob of longwall panel no. 8102, and the pressure reduction effect of the advance support section of the gob was obvious, ensuring the safety of the working face.

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Creep and Control of the Deep Soft Rock Roadway (DSRR): Insights from Laboratory Testing and Practice in Pingdingshan Mining Area

Cited by 24 publications

References 27 publications

Expression and Analysis of Uncertainty in Deep Foundation Pit Design Scheme Decision-Making

Expression and Analysis of Uncertainty in Deep Foundation Pit Design Scheme Decision-Making

Controlled reconstruction and application research of lateral overlying strata structure in high-gas mines with thick-hard roofs for a fully-mechanized top-caving face

Study of Overlying Rock Structure and Intensive Pressure Control Technology of Island Longwall Panel in Extra-Thick Coal Seams

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