2021
DOI: 10.1155/2021/7236077
|View full text |Cite
|
Sign up to set email alerts
|

Numerical Simulation of Cracking Failure and Weakening Law of Roadway Surrounding Rock under High Stress

Abstract: In deep roadway mining, high water pressure causes rock mass cracking and weakens the overall strength, affecting the stability of underground metal mine mining roadways. Therefore, using a numerical simulation method, we analyzed the strain softening characteristics of rocks after the inflexion point of elasticity and studied the strain distribution and the minimum support resistance under high-pressure groundwater conditions. Considering the groundwater pressure and effective porosity on the strain softening… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2

Citation Types

0
4
0

Year Published

2022
2022
2024
2024

Publication Types

Select...
4

Relationship

0
4

Authors

Journals

citations
Cited by 4 publications
(4 citation statements)
references
References 32 publications
(41 reference statements)
0
4
0
Order By: Relevance
“…According to the in situ monitoring data of the underground 400 m roadway in the study area, the roadway section is a semi-circular arch; the section width is 2.8 m; the straight wall height is 1.6 m; the arch height is 1.4 m; and the section area is 6.55 m 2 . The inner surface area of each 1 m long roadway is 9.68 m 2 , and the perimeter length of the roadway section is 10.396 m. The research area was selected to be the surrounding rock of the roadway, in the range of 14 m × 10 m × 1500 m [42], as shown in Figure 21.…”
Section: Overview Of Mining Projectmentioning
confidence: 99%
See 1 more Smart Citation
“…According to the in situ monitoring data of the underground 400 m roadway in the study area, the roadway section is a semi-circular arch; the section width is 2.8 m; the straight wall height is 1.6 m; the arch height is 1.4 m; and the section area is 6.55 m 2 . The inner surface area of each 1 m long roadway is 9.68 m 2 , and the perimeter length of the roadway section is 10.396 m. The research area was selected to be the surrounding rock of the roadway, in the range of 14 m × 10 m × 1500 m [42], as shown in Figure 21.…”
Section: Overview Of Mining Projectmentioning
confidence: 99%
“…inner surface area of each 1 m long roadway is 9.68 m 2 , and the perimeter lengt roadway section is 10.396 m. The research area was selected to be the surrounding the roadway, in the range of 14 m × 10 m × 1500 m [42], as shown in Figure 21. The COMSOL direct solver was used to solve the problem.…”
Section: Overview Of Mining Projectmentioning
confidence: 99%
“…By introducing a tensile fracture softening failure model, he obtained the crack propagation characteristics under single-hole and double-hole drilling conditions. Cheng Shufan [8] analyzed the crack propagation and material damage distribution of rock masses under explosive loads using the HJC model and the virtual-damage crack model of the cleavage cohesion element. Li Qing [9] and Yang Renshu [10], among others, explored the interaction between cracks and stress waves under explosive loads using a transmission-type explosive dynamic caustics optical test system.…”
Section: Introductionmentioning
confidence: 99%
“…The stress transfer technology, later also referred to as depressurization, was invented to reduce the impact of high stress [17]. This approach transfers the high stress around the roadway surface into the deeper stable rock masses by artificially weakening the bearing capacity of surface rocks [18]. The stress transfer technology has been widely applied in roadways subject to complex conditions, such as deep roadways, dynamic roadways, and soft rock roadways.…”
Section: Introductionmentioning
confidence: 99%