Numerical Study of Surrounding Rock Damage in Deep-Buried Tunnels for Building-Integrated Underground Structures
-д хадгалсан:
| -д хэвлэсэн: | Buildings vol. 15, no. 13 (2025), p. 2168-2194 |
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| Үндсэн зохиолч: | |
| Бусад зохиолчид: | , , , , |
| Хэвлэсэн: |
MDPI AG
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| Нөхцлүүд: | |
| Онлайн хандалт: | Citation/Abstract Full Text + Graphics Full Text - PDF |
| Шошгууд: |
Шошго байхгүй, Энэхүү баримтыг шошголох эхний хүн болох!
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MARC
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| 022 | |a 2075-5309 | ||
| 024 | 7 | |a 10.3390/buildings15132168 |2 doi | |
| 035 | |a 3229142891 | ||
| 045 | 2 | |b d20250701 |b d20250714 | |
| 084 | |a 231437 |2 nlm | ||
| 100 | 1 | |a Zhang, Penglin |u School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China; zhang_penglin@chidi.com.cn | |
| 245 | 1 | |a Numerical Study of Surrounding Rock Damage in Deep-Buried Tunnels for Building-Integrated Underground Structures | |
| 260 | |b MDPI AG |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a When deep-buried tunnels are excavated using the drill-and-blast method, the surrounding rock is subjected to combined cyclic blasting loads and excavation-induced stress unloading. Understanding the distribution characteristics of rock damage zones under these conditions is crucial for the design and safety of building-integrated underground structures. This study investigates the relationship between surrounding rock damage and in situ stress conditions through numerical simulation methods. A constitutive model suitable for simulating rock mass damage was developed and implemented in the LS-DYNA (version R12) code via a user-defined material model, with parameters determined using the Hoek–Brown failure criterion. A finite element model was established to analyze surrounding rock damage under cyclic blasting loads, and the model was validated using field data. Simulations were then carried out to explore the evolution of the damage zone under various stress conditions. The results show that with increasing hydrostatic pressure, the extent of the damage zone first decreases and then increases, with blasting-induced damage dominating under lower pressure and unloading-induced shear failure prevailing at higher pressure. When the hydrostatic pressure is less than 20 MPa, the surrounding rock stabilizes at a distance greater than 12.6 m from the tunnel face, whereas at hydrostatic pressures of 30 MPa and 40 MPa, this distance increases to 29.4 m. When the lateral pressure coefficient is low, tensile failure occurs mainly at the vault and floor, while shear failure dominates at the arch waist. As the lateral pressure coefficient increases, the failure mode at the vault shifts from tensile to shear. Additionally, when the horizontal stress perpendicular to the tunnel axis (σH) is less than the vertical stress (σv), variations in the axial horizontal stress (σh) have a significant effect on shear failure. Conversely, when σH exceeds σv, changes in σh have little impact on the extent of rock damage. | |
| 653 | |a Finite element method | ||
| 653 | |a Rock masses | ||
| 653 | |a Mathematical analysis | ||
| 653 | |a Underground structures | ||
| 653 | |a Tunnels | ||
| 653 | |a Constitutive models | ||
| 653 | |a Excavation | ||
| 653 | |a Safety engineering | ||
| 653 | |a Rocks | ||
| 653 | |a Buried structures | ||
| 653 | |a Damage | ||
| 653 | |a Hydrostatic pressure | ||
| 653 | |a Simulation | ||
| 653 | |a Velocity | ||
| 653 | |a Disclaimers | ||
| 653 | |a Blasting | ||
| 653 | |a Pressure | ||
| 653 | |a Failure modes | ||
| 653 | |a Lateral pressure | ||
| 653 | |a Shear | ||
| 653 | |a Mathematical models | ||
| 653 | |a Cyclic loads | ||
| 653 | |a Unloading | ||
| 700 | 1 | |a Zhang, Chong |u Power China Chengdu Engineering Corporation Limited, Chengdu 610072, China | |
| 700 | 1 | |a Chen, Weitao |u Power China Chengdu Engineering Corporation Limited, Chengdu 610072, China | |
| 700 | 1 | |a He Chunhui |u Power China Chengdu Engineering Corporation Limited, Chengdu 610072, China | |
| 700 | 1 | |a Liu, Yang |u School of Civil Engineering, Wuhan University, Wuhan 430072, China | |
| 700 | 1 | |a Chu Zhaofei |u School of Civil Engineering, Wuhan University, Wuhan 430072, China | |
| 773 | 0 | |t Buildings |g vol. 15, no. 13 (2025), p. 2168-2194 | |
| 786 | 0 | |d ProQuest |t Engineering Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3229142891/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/3229142891/fulltextwithgraphics/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3229142891/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |