THM modeling of ground subsidence induced by excavation of

THM modeling of ground subsidence induced by excavation of

Experimental characterization and dependence of rock

Jan 10, 2019 · Wu D, Deng TF, Zhao RK, Wang Y (2018) THM modeling of ground subsidence induced by excavation of subway tunnel. Comput Geotech 94:1–11. Article Google Scholar Yang SQ, Tian WL, Ranjith PG (2017) Failure mechanical behavior of Australian strathbogie granite at high temperatures: insights from particle flow modeling.

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Coupled Effect of Curing Temperature and Moisture on THM

Aug 30, 2020 · Cemented paste backfill (CPB), a mixture of tailings, binder, and water, is widely and continually utilized in underground mines for subsidence control and disposal of surface hazardous waste discharge. The mechanical strength of CPB, which is the key for the backfill structure to play the role of supporting overlying roof and controlling subsidence, is governed …

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THM modeling of ground subsidence induced by excavation of

Feb 01, 2018 · A THM coupled model is developed to investigate the ground subsidence induced by the tunnel excavation, and then the outcomes simulated by this model are compared with that obtained from physical simulation experiments. A good agreement is found between the modeling results and measured data, indicating that the developed model is provided with well …

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Journal of Rock Mechanics and Geotechnical Engineering

The paper focusses on the use of physical modelling in ground movements (induced by underground cavity collapse or mining/tunnelling) and associated soil-structure interaction issues. The paper presents first an overview of using 1g physical models to solve geotechnical problems and soil-structure interactions related to vertical ground movements.

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Challenges and Innovations in Geomechanics: Proceedings of

Jan 14, 2021 · This book gathers the latest advances, innovations, and applications in the field of computational geomechanics, as presented by international researchers and engineers at the 16th International Conference of the International Association for Computer Methods and Advances in Geomechanics (IACMAG 2020/21). Contributions include a wide range of topics in …

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Computers and Geotechnics - Academic Accelerator

THM modeling of ground subsidence induced by excavation of subway tunnel: Hans Petter Jostad · Francesca Palmieri · Lars Andresen · Noel Boylan · Noel Boylan Upper-bound finite-element analysis of axisymmetric problems using a mesh adaptive strategy: Arash Tootoonchi · Arman Khoshghalb · G.R. Liu · G.R. Liu

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MODELING STUDY ON COMPOSITE SOIL NAILING FOR DEEP EXCAVATION

The composite soil nailing is a new technique developed from soil nailing for retaining excavation or improving stability of existing slope. A modeling test of the composite soil nailing is carried out in laboratory to study its behaviors and working mechanism and hence facilitate its development. The retaining structures are modeled according to the similarity rule in which the geometric

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Measurements and predictions of subsidence induced by soil

adopted as a physical model for ground subsidence is not adequate for our study because the subsidence induced by soil consolidation is not a constant in time. Here we intro-duce a hyperbolic model because it is widely used by en-gineers for settlement prediction due to soil consolidation [Kim et al., 2005; Tan et al., 1991].

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Dewatering induced subsidence during excavation in a

May 10, 2017 · The mechanism of subsidence due to foundation dewatering is similar to regional land subsidence induced by large-scale groundwater withdrawal which can be explained by effective stress theory (Kim 2005; Galloway and Burbey 2011). The models used to describe subsidence due to foundation dewatering are built from groundwater flow and soil

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Thermo-Hydro-Mechanical Modeling of Artificial Ground

Mar 23, 2019 · A coupled THM modeling framework based on the concepts of liquid saturation degree (for phase-change front tracking) and effective stress (to reproduce the stress behavior in both frozen and nonfrozen ground) was derived and then applied to the modeling of the ground freezing activity in the Cigar Lake mine.

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Land uplift induced by injection: a feasible method to

Jul 05, 2018 · The results were used to verify the accuracy of the simulator for calculating the THM coupling. The effects of injection quantity, injection time, and injection mode on land uplift were also studied on the constructed model. At last, a land uplift evaluation system was built to quantify the CO2 escape if any.

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Measurements and predictions of subsidence induced by soil

adopted as a physical model for ground subsidence is not adequate for our study because the subsidence induced by soil consolidation is not a constant in time. Here we intro-duce a hyperbolic model because it is widely used by en-gineers for settlement prediction due to soil consolidation [Kim et al., 2005; Tan et al., 1991].

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Guidance on numerical modelling of thermo-hydro-mechanical

THM modeling of ground subsidence induced by excavation of subway tunnel Article Aug 2017 Di Wu Tengfei Deng Runkang Zhao Yinghe Wang In order to …

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Mechanism for large-scale canyon deformations due to

Jul 22, 2020 · Overall, the THM model proposed in this paper integrates the advantages of the above models, and presents an unprecedented in-depth investigation into the hydrogeological characteristics of the

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Overview of extended functions - IBM

Nov 05, 2021 · Class loaders enable applications that are deployed on servers to access repositories of available classes and resources. Application developers and deployers must consider the location of class and resource files, and the class loaders used to access those files, to make the files available to deployed applications.

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Numerical Simulation of Surface Subsidence and Backfill

Jun 17, 2019 · Surface subsidence induced by underground mining is one of the challenging problems in mining engineering, which can destroy ground surface buildings and cause huge economic losses to the mine. In this study, a two-dimensional numerical model, established by the discrete element method code PFC2D, was adopted to investigate the mechanical …

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Simulation of Mining-Induced Ground Damage Using

Using all these aforementioned methods, the ground subsidence characteristics and subsidence parameters [13,16] as well as their dynamics [11] have been studied. The super-large size of the coalface and high-strength mining cause the active period of the subsidence process to be short with the main subsidence values concentrated during this

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The design and construction of shallow-buried tunnels in densely populated urban areas involve many challenges. The ground movements induced by tunneling effects pose potential ri

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THM modeling of ground subsidence induced by excavation of

THM modeling of ground subsidence induced by excavation of subway tunnel. Di Wu, Tengfei Deng, Runkang Zhao, Yinghe Wang. Pages 1-11. Download PDF. Article preview. select article The bearing capacity and failure mechanism of a vertically loaded …

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Coupled Effect of Curing Temperature and Moisture on THM

Aug 30, 2020 · Cemented paste backfill (CPB), a mixture of tailings, binder, and water, is widely and continually utilized in underground mines for subsidence control and disposal of surface hazardous waste discharge. The mechanical strength of CPB, which is the key for the backfill structure to play the role of supporting overlying roof and controlling subsidence, is governed …

Get a Quote
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