Abstract
This study numerically simulated the failure process of a mining-induced landslide at Nattai North, Australia. Results obtained using Discontinuous Deformation Analysis (DDA) matched the conceptual failure process suggested by local geologists and the observed maximum run-out distance. The maximum velocity of the sliding rocks exceeded 40 m/s. Computational results showed that the slope with inward sub-horizontal bedding planes and sub-vertical discontinuities remained stable if the mining-induced high principle stresses did not fracture the rocks near the slope toe. Failure of the rocks near the toe of the slope was a key causal factor in the subsequent landslide. This paper presents the first numerical simulation of the post-failure behavior of the mining-induced landslide at the Nattai North site. It also represents the first DDA simulation to clarify the chain reaction of a mining-induced landslide and demonstrate its applicability in such investigations.
| Original language | English |
|---|---|
| Article number | 105386 |
| Journal | Engineering Geology |
| Volume | 264 |
| DOIs | |
| Publication status | Published - 2020 Jan |
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All Science Journal Classification (ASJC) codes
- Geotechnical Engineering and Engineering Geology
- Geology
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Simulating a mining-triggered rock avalanche using DDA : A case study in Nattai North, Australia. / Do, Trong Nhan; Wu, Jian Hong.
In: Engineering Geology, Vol. 264, 105386, 01.2020.Research output: Contribution to journal › Article
TY - JOUR
T1 - Simulating a mining-triggered rock avalanche using DDA
T2 - A case study in Nattai North, Australia
AU - Do, Trong Nhan
AU - Wu, Jian Hong
PY - 2020/1
Y1 - 2020/1
N2 - This study numerically simulated the failure process of a mining-induced landslide at Nattai North, Australia. Results obtained using Discontinuous Deformation Analysis (DDA) matched the conceptual failure process suggested by local geologists and the observed maximum run-out distance. The maximum velocity of the sliding rocks exceeded 40 m/s. Computational results showed that the slope with inward sub-horizontal bedding planes and sub-vertical discontinuities remained stable if the mining-induced high principle stresses did not fracture the rocks near the slope toe. Failure of the rocks near the toe of the slope was a key causal factor in the subsequent landslide. This paper presents the first numerical simulation of the post-failure behavior of the mining-induced landslide at the Nattai North site. It also represents the first DDA simulation to clarify the chain reaction of a mining-induced landslide and demonstrate its applicability in such investigations.
AB - This study numerically simulated the failure process of a mining-induced landslide at Nattai North, Australia. Results obtained using Discontinuous Deformation Analysis (DDA) matched the conceptual failure process suggested by local geologists and the observed maximum run-out distance. The maximum velocity of the sliding rocks exceeded 40 m/s. Computational results showed that the slope with inward sub-horizontal bedding planes and sub-vertical discontinuities remained stable if the mining-induced high principle stresses did not fracture the rocks near the slope toe. Failure of the rocks near the toe of the slope was a key causal factor in the subsequent landslide. This paper presents the first numerical simulation of the post-failure behavior of the mining-induced landslide at the Nattai North site. It also represents the first DDA simulation to clarify the chain reaction of a mining-induced landslide and demonstrate its applicability in such investigations.
UR - http://www.scopus.com/inward/record.url?scp=85074449259&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074449259&partnerID=8YFLogxK
U2 - 10.1016/j.enggeo.2019.105386
DO - 10.1016/j.enggeo.2019.105386
M3 - Article
AN - SCOPUS:85074449259
VL - 264
JO - Engineering Geology
JF - Engineering Geology
SN - 0013-7952
M1 - 105386
ER -