DLSM Simulation Analysis of the Influence of Blasting Construction on Adjacent Tunnels in Rock Mass with Discontinuities
In order to study the influence of blasting construction of rock mass with discontinuities on adjacent tunnels, a feasible blasting scheme is formulated to ensure the safety of adjacent tunnels during construction. Based on the water resources allocation project in the Pearl River Delta, a tunnel co...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/2214008 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850169302704979968 |
|---|---|
| author | XuHui Li GuoLong Qiao Junwei Guan |
| author_facet | XuHui Li GuoLong Qiao Junwei Guan |
| author_sort | XuHui Li |
| collection | DOAJ |
| description | In order to study the influence of blasting construction of rock mass with discontinuities on adjacent tunnels, a feasible blasting scheme is formulated to ensure the safety of adjacent tunnels during construction. Based on the water resources allocation project in the Pearl River Delta, a tunnel construction model is established by using continuous-discontinuous medium mechanics calculation model, Distinct Lattice Spring Model (DLSM), to simulate the impact of blasting construction of the left tunnel on the right adjacent tunnel. According to the numerical simulation results, the stress wave transmission process of the left tunnel with blasting time t = 18 ms is analyzed. Furthermore, the effects of the positions of the discontinuity, the width of the discontinuity, and the angle between the discontinuity and the horizontal direction on the adjacent tunnel are studied. The modelling results show that the existence of discontinuities plays a certain role in improving the safety of adjacent tunnels in the blasting stage. The farther the distance between the discontinuity and the adjacent tunnel is, the smaller the impact of blasting on the adjacent tunnel is. In the process of blasting, the larger the width of discontinuity is, the more effective it is to block the influence of blasting stress wave on the adjacent tunnel. The smaller the angle between discontinuity and horizontal direction, the smaller the impact of blasting on adjacent tunnels. |
| format | Article |
| id | doaj-art-a82457d624a848a2ad1ce3b9d8832f31 |
| institution | OA Journals |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-a82457d624a848a2ad1ce3b9d8832f312025-08-20T02:20:45ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/2214008DLSM Simulation Analysis of the Influence of Blasting Construction on Adjacent Tunnels in Rock Mass with DiscontinuitiesXuHui Li0GuoLong Qiao1Junwei Guan2Guangdong Pearl River Delta Water Supply Co., Ltd.Guangdong Pearl River Delta Water Supply Co., Ltd.School of Civil EngineeringIn order to study the influence of blasting construction of rock mass with discontinuities on adjacent tunnels, a feasible blasting scheme is formulated to ensure the safety of adjacent tunnels during construction. Based on the water resources allocation project in the Pearl River Delta, a tunnel construction model is established by using continuous-discontinuous medium mechanics calculation model, Distinct Lattice Spring Model (DLSM), to simulate the impact of blasting construction of the left tunnel on the right adjacent tunnel. According to the numerical simulation results, the stress wave transmission process of the left tunnel with blasting time t = 18 ms is analyzed. Furthermore, the effects of the positions of the discontinuity, the width of the discontinuity, and the angle between the discontinuity and the horizontal direction on the adjacent tunnel are studied. The modelling results show that the existence of discontinuities plays a certain role in improving the safety of adjacent tunnels in the blasting stage. The farther the distance between the discontinuity and the adjacent tunnel is, the smaller the impact of blasting on the adjacent tunnel is. In the process of blasting, the larger the width of discontinuity is, the more effective it is to block the influence of blasting stress wave on the adjacent tunnel. The smaller the angle between discontinuity and horizontal direction, the smaller the impact of blasting on adjacent tunnels.http://dx.doi.org/10.1155/2022/2214008 |
| spellingShingle | XuHui Li GuoLong Qiao Junwei Guan DLSM Simulation Analysis of the Influence of Blasting Construction on Adjacent Tunnels in Rock Mass with Discontinuities Advances in Civil Engineering |
| title | DLSM Simulation Analysis of the Influence of Blasting Construction on Adjacent Tunnels in Rock Mass with Discontinuities |
| title_full | DLSM Simulation Analysis of the Influence of Blasting Construction on Adjacent Tunnels in Rock Mass with Discontinuities |
| title_fullStr | DLSM Simulation Analysis of the Influence of Blasting Construction on Adjacent Tunnels in Rock Mass with Discontinuities |
| title_full_unstemmed | DLSM Simulation Analysis of the Influence of Blasting Construction on Adjacent Tunnels in Rock Mass with Discontinuities |
| title_short | DLSM Simulation Analysis of the Influence of Blasting Construction on Adjacent Tunnels in Rock Mass with Discontinuities |
| title_sort | dlsm simulation analysis of the influence of blasting construction on adjacent tunnels in rock mass with discontinuities |
| url | http://dx.doi.org/10.1155/2022/2214008 |
| work_keys_str_mv | AT xuhuili dlsmsimulationanalysisoftheinfluenceofblastingconstructiononadjacenttunnelsinrockmasswithdiscontinuities AT guolongqiao dlsmsimulationanalysisoftheinfluenceofblastingconstructiononadjacenttunnelsinrockmasswithdiscontinuities AT junweiguan dlsmsimulationanalysisoftheinfluenceofblastingconstructiononadjacenttunnelsinrockmasswithdiscontinuities |