Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern China
Dangerous rock mass in the overhanging slope of Puerdu town has good free-face condition, high position, and great potential energy, identification and stability evaluation of which is a difficult problem in the disaster prevention. In this paper, the limit equilibrium method was used to evaluate th...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6526417 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561529789087744 |
|---|---|
| author | Wen-Lian Liu Jia-Xing Dong Su-Gang Sui Han-Hua Xu Run-Xue Yang Zhen-Luo Shen |
| author_facet | Wen-Lian Liu Jia-Xing Dong Su-Gang Sui Han-Hua Xu Run-Xue Yang Zhen-Luo Shen |
| author_sort | Wen-Lian Liu |
| collection | DOAJ |
| description | Dangerous rock mass in the overhanging slope of Puerdu town has good free-face condition, high position, and great potential energy, identification and stability evaluation of which is a difficult problem in the disaster prevention. In this paper, the limit equilibrium method was used to evaluate the dangerous rock mass stability in the overhanging slope. Firstly, geomorphic characteristics and the distribution of dangerous rock mass are determined by the field geological survey. Secondly, six dangerous rock masses which may cause more threat are studied, with defining their failure modes and characteristic parameters. Finally, a simplified geological model is established, the stability coefficient of dangerous rock mass under different conditions is calculated by the limit equilibrium method, at the same time, stability analysis of dangerous rock mass is carried out based on the stereographic projection, and the hazard probability is estimated by the empirical formula. Results show that joints obviously developed in the dangerous rock mass of W1, W2, W3, W4, W5, and W6, with falling-type and toppling-type failure modes. In the natural condition, the dangerous rock mass is understable and unstable under the rainstorm and earthquake conditions. Consequently, rainstorm and earthquake are the key triggering factors of the instability and collapse of dangerous rock mass. |
| format | Article |
| id | doaj-art-cad7c3a780194ba0a71a4871c853d7d5 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-cad7c3a780194ba0a71a4871c853d7d52025-02-03T01:24:48ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/65264176526417Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern ChinaWen-Lian Liu0Jia-Xing Dong1Su-Gang Sui2Han-Hua Xu3Run-Xue Yang4Zhen-Luo Shen5Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co., Ltd., Kunming 650051, Yunnan, ChinaYunnan Key Laboratory of Geotechnical Engineering and Geohazards, Kunming 650051, Yunnan, ChinaKunming Prospecting Design Institute of China Nonferrous Metals Industry Co., Ltd., Kunming 650051, Yunnan, ChinaKunming Prospecting Design Institute of China Nonferrous Metals Industry Co., Ltd., Kunming 650051, Yunnan, ChinaFaculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, ChinaFaculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, ChinaDangerous rock mass in the overhanging slope of Puerdu town has good free-face condition, high position, and great potential energy, identification and stability evaluation of which is a difficult problem in the disaster prevention. In this paper, the limit equilibrium method was used to evaluate the dangerous rock mass stability in the overhanging slope. Firstly, geomorphic characteristics and the distribution of dangerous rock mass are determined by the field geological survey. Secondly, six dangerous rock masses which may cause more threat are studied, with defining their failure modes and characteristic parameters. Finally, a simplified geological model is established, the stability coefficient of dangerous rock mass under different conditions is calculated by the limit equilibrium method, at the same time, stability analysis of dangerous rock mass is carried out based on the stereographic projection, and the hazard probability is estimated by the empirical formula. Results show that joints obviously developed in the dangerous rock mass of W1, W2, W3, W4, W5, and W6, with falling-type and toppling-type failure modes. In the natural condition, the dangerous rock mass is understable and unstable under the rainstorm and earthquake conditions. Consequently, rainstorm and earthquake are the key triggering factors of the instability and collapse of dangerous rock mass.http://dx.doi.org/10.1155/2021/6526417 |
| spellingShingle | Wen-Lian Liu Jia-Xing Dong Su-Gang Sui Han-Hua Xu Run-Xue Yang Zhen-Luo Shen Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern China Advances in Civil Engineering |
| title | Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern China |
| title_full | Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern China |
| title_fullStr | Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern China |
| title_full_unstemmed | Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern China |
| title_short | Stability Assessment of Dangerous Rock Mass of an Overhanging Slope in Puerdu Town, Southwestern China |
| title_sort | stability assessment of dangerous rock mass of an overhanging slope in puerdu town southwestern china |
| url | http://dx.doi.org/10.1155/2021/6526417 |
| work_keys_str_mv | AT wenlianliu stabilityassessmentofdangerousrockmassofanoverhangingslopeinpuerdutownsouthwesternchina AT jiaxingdong stabilityassessmentofdangerousrockmassofanoverhangingslopeinpuerdutownsouthwesternchina AT sugangsui stabilityassessmentofdangerousrockmassofanoverhangingslopeinpuerdutownsouthwesternchina AT hanhuaxu stabilityassessmentofdangerousrockmassofanoverhangingslopeinpuerdutownsouthwesternchina AT runxueyang stabilityassessmentofdangerousrockmassofanoverhangingslopeinpuerdutownsouthwesternchina AT zhenluoshen stabilityassessmentofdangerousrockmassofanoverhangingslopeinpuerdutownsouthwesternchina |