Results 1 to 10 of about 1,833 (184)

Improvement of anchor structural unit in FLAC3D and its application to the 110 construction method [PDF]

open access: yesScientific Reports
Numerical simulation is an important method for analyzing the behavior of supports under complex geological conditions. FLAC3D, a widely used analysis tool, assumes the anchor structural unit to be an ideal elastoplastic material, which limits its ability to simulate strength decay in situations involving large deformation.
Zhigang Tao, Tao Zhigang
exaly   +5 more sources

Stability analysis of dam grouting reinforcement based on FLAC3D. [PDF]

open access: yesPLoS One
Ill reservoirs have significant safety hazards, it is urgent to grout and strengthen the dangerous reservoir dams. In order to effectively evaluate the stability of the dam after grouting reinforcement, this paper carried out numerical simulation analysis work.
Qin P.
europepmc   +3 more sources

Analysis of Tunnel Excavation Deformation Based on FLAC3D

open access: yesLecture Notes in Civil Engineering
AbstractDeformation analysis of tunnel excavation is one of the core problems. FLAC3D is used to simulate tunnel excavation, including tunnel modeling, excavation and support, and analyzes the force and deformation characteristics in the construction process.
exaly   +2 more sources

مدل‌سازی هیدرومکانیک نشست تونل در محیط‌های شهری مطالعه موردی تونل مترو خط7 تهران [PDF]

open access: yesAnalytical and Numerical Methods in Mining Engineering, 2021
افزایش جمعیت و توسعه شهرها، نقش تونل­ به‌عنوان راه‌حلی مناسب جهت رفع نیازهای مختلف، بخصوص حمل‌ونقل و کاهش ترافیک سطح شهرها را برجسته­تر می­کند. کنترل و تخمین نشست یکی از مهم‌ترین چالش­های حفر تونل در این مناطق است.
احمد رمضان زاده   +1 more
doaj   +1 more source

Research on stress variation law of floor under coal pillar with different widths based on three-hinged oblique arch

open access: yesMeikuang Anquan, 2023
In order to obtain the overlying strata structure and the stress transfer law of floor under the influence of section coal pillar after the upper protective layer is fully mined, the rational arch axis equation is deduced based on the three-hinged ...
LUO Tongtong   +5 more
doaj   +1 more source

Substantiation of pillar parameters in mining of inclined coal seams in Quang Ninh Province, Vietnam

open access: yesГорные науки и технологии, 2022
Design and operation of auxiliary underground workings in coal mines involves substantiation of parameters of coal pillars and requires development of new approaches to substantiate their geometrics. On the one hand, sufficient stability of a “rock mass –
Viet Nghia Nguyen   +4 more
doaj   +1 more source

Numerical analysis on water inrush catastrophe of concealed collapse column of floor under mining

open access: yesMeikuang Anquan, 2021
In order to study the characteristics and evolution for water inrush catastrophe of concealed collapse column of floor under mining, a concealed collapse column project was taken as the background.
HUANG Yong, LIN Zhibin
doaj   +1 more source

Using Umbrella Arch Method in Design of Tunnel Lining, Case Study: Water Transfer Tunnel of Kani-sib, Urmia lake [PDF]

open access: yesNumerical Methods in Civil Engineering, 2021
The access tunnel of the Urmia Lake for water transfer and restoration project (Kani Sib) is located in the south of West Azerbaijan Province, Iran. Part of this tunnel is located on weak and very loose soil, which in some areas, cannot be stabilized ...
Naser Pashaye   +2 more
doaj   +1 more source

Influence of Gangue Compaction Process on Coal Pillar Supporting Pressure in Goaf

open access: yesMeikuang Anquan, 2020
To study the variation law of gob pressure and abutment pressure on coal pillar with the degree of compacting gangue in gob, by means of laboratory test and numerical simulation, the relationship between the compression modulus of gangue in goaf and the ...
WANG Lei, CAO Hengjiang, JIANG Zilong, WANG Tongxu
doaj   +1 more source

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