An early warning method for a slope based on the increment ratio of anchor cable internal force

• Autorzy: Feng Jincai , Chen Jiaxin , Li Jian , Zhang Yu , Guo Jianhua , Qiu Hongyong

Identyfikatory

DOI

10.24425/ace.2023.144188

• Języki publikacji: EN

Abstrakty

EN

Prestressed anchor cables are active reinforcement to improve slope stability. However, the anchoring is not a permanent guarantee of stability, and the slope retains a potential risk of instability. From the perspective of the internal force of anchor cables, a new early warning method for the safety of the slope is provided, and a slope analysis model is established. With the increase in the strength reduction factor, the internal force increment curves of anchor cables under different prestresses are obtained. The point corresponding to strength reduction factors λ1 and λ2 represents a warning point. Key conclusions are drawn as follows: (1) The internal force of an anchor cable can be used to judge the stability of the slope strengthened by a prestressed anchor cable. (2) A warning index based on the internal force increment ratio of anchor cables is established. (3) The internal force increment ratio of anchor cables eliminates the influence of the initial prestress and is convenient for engineering applications.

Słowa kluczowe

EN

prestressed cable; anchor cable; early warning method; slope; internal force; increment ratio; safety factor

PL

kabel sprężony; kabel kotwiący; metoda wczesnego ostrzegania; zbocze; siła wewnętrzna; współczynnik przyrostu; współczynnik bezpieczeństwa

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2023
• Tom: Vol. 69, nr 1
• Strony: 553--569
• Opis fizyczny: Bibliogr. 40 poz., il., tab.

Twórcy

autor

Feng Jincai

• School of Environmental Science and Engineering, Changzhou University, Changzhou, China

• https://orcid.org/0000-0003-2482-3995

autor

Chen Jiaxin

• School of Environmental Science and Engineering, Changzhou University, Changzhou, China

• https://orcid.org/0000-0002-0275-061X

autor

Li Jian

• School of Civil Engineering, State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China

• https://orcid.org/0000-0003-4466-7379

autor

Zhang Yu

• Water Development Group, Sichuan Water Development Group CO., LTD., Chengdu, China

• https://orcid.org/0000-0002-7650-5983

autor

Guo Jianhua

• School of Civil Engineering, State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China

• https://orcid.org/0000-0003-3557-0698

autor

Qiu Hongyong

• School of Civil Engineering, Changzhou University, Changzhou, China

• https://orcid.org/0000-0003-4354-7121

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