Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics

Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics

As a kind of existing and potential geological disaster at source of avalanche on cliffs or steep slopes, perilous rock has developed in the western area of China widely and it poses a serious threat to highways, railways, pipelines, cities, and mining for a long time. More than ten years of enginee...

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Datum:2013
Hauptverfasser: Chen, H.K., Tang, H.M.
Format: Artikel
Sprache:English
Veröffentlicht: Інститут механіки ім. С.П. Тимошенка НАН України 2013
Schriftenreihe:Прикладная механика
Online Zugang:http://dspace.nbuv.gov.ua/handle/123456789/87768
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics / H.K. Chen, H.M. Tang // Прикладная механика. — 2013. — Т. 49, № 3. — С. 135-144. — Бібліогр.: 16 назв. — рос.

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spelling irk-123456789-877682015-10-25T03:02:15Z Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics Chen, H.K. Tang, H.M. As a kind of existing and potential geological disaster at source of avalanche on cliffs or steep slopes, perilous rock has developed in the western area of China widely and it poses a serious threat to highways, railways, pipelines, cities, and mining for a long time. More than ten years of engineering experience have shown the necessity and importance to pay our attention to the avalanche sources in active collapse mitigation. The support - anchor combined technique is devoted to the active hazard mitigation measures of perilous rock. This paper introduces fracture mechanics to investigate the design procedure of the support - anchor combined technique. To obtain reasonable design parameters of the technique, both stability assessment criterion and three safety classes of protection engineering for perilous rock is proposed, further, stable analysis methods for various types of perilous rock are established by using fracture mechanics. Abiding by the idea that to improve stability coefficient to a higher level, the support force of structure and the anchorage force of anchorbolt from the support - anchor combined technique are introduced into stability analysis methods established above, which can estimate the section dimension of support subunit and the amount of anchorbolt of the technique. Engineering applications of the technique in thousands of protection engineering have identified the remarkable effectiveness. Більш ніж десять років інженерного досвіду в західній частині Китаю показали необхідність і важливість уваги до джерел лавин з метою активного зменшення катастроф. Для вимірювання активного зменшення ризику від небезпечних грунтів розроблена об‘єднана методика «опора-анкер». У роботі застосована механіка руйнування для дослідження процедури створення розрахункової схеми об‘єднаної методики «опора-анкер». Для отримання коректних параметрів схеми запропоновано критерій оцінки стійкості і три класи безпеки інженерного захисту для небезпечних грунтів. Далі на основі механіки руйнування розвинуті стійкі методи аналізу для різних типів небезпечних грунтів. На основі ідеї про покращення коефіцієнтів стійкості до вищого рівня в методи аналізу стійкості введено силу опори в конструкції та силу анкера для анкерного болта в опорі з об‘єднаної методики «опора-анкер». Це дозволяє оцінити в застосованій методиці розмір секції в опорі і кількість анкерних болтів. Інженерні застосування запропонованої методики показали суттєву ефективність у тисячах випадків інженерного захисту. 2013 Article Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics / H.K. Chen, H.M. Tang // Прикладная механика. — 2013. — Т. 49, № 3. — С. 135-144. — Бібліогр.: 16 назв. — рос. 0032-8243 http://dspace.nbuv.gov.ua/handle/123456789/87768 en Прикладная механика Інститут механіки ім. С.П. Тимошенка НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
description As a kind of existing and potential geological disaster at source of avalanche on cliffs or steep slopes, perilous rock has developed in the western area of China widely and it poses a serious threat to highways, railways, pipelines, cities, and mining for a long time. More than ten years of engineering experience have shown the necessity and importance to pay our attention to the avalanche sources in active collapse mitigation. The support - anchor combined technique is devoted to the active hazard mitigation measures of perilous rock. This paper introduces fracture mechanics to investigate the design procedure of the support - anchor combined technique. To obtain reasonable design parameters of the technique, both stability assessment criterion and three safety classes of protection engineering for perilous rock is proposed, further, stable analysis methods for various types of perilous rock are established by using fracture mechanics. Abiding by the idea that to improve stability coefficient to a higher level, the support force of structure and the anchorage force of anchorbolt from the support - anchor combined technique are introduced into stability analysis methods established above, which can estimate the section dimension of support subunit and the amount of anchorbolt of the technique. Engineering applications of the technique in thousands of protection engineering have identified the remarkable effectiveness.
format Article
author Chen, H.K.
Tang, H.M.
spellingShingle Chen, H.K.
Tang, H.M.
Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics
Прикладная механика
author_facet Chen, H.K.
Tang, H.M.
author_sort Chen, H.K.
title Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics
title_short Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics
title_full Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics
title_fullStr Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics
title_full_unstemmed Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics
title_sort study on the support-anchor combined technique to control perilous rock at the source of avalanche by fracture mechanics
publisher Інститут механіки ім. С.П. Тимошенка НАН України
publishDate 2013
url http://dspace.nbuv.gov.ua/handle/123456789/87768
citation_txt Study on the Support-Anchor Combined Technique to Control Perilous Rock at the Source of Avalanche by Fracture Mechanics / H.K. Chen, H.M. Tang // Прикладная механика. — 2013. — Т. 49, № 3. — С. 135-144. — Бібліогр.: 16 назв. — рос.
series Прикладная механика
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AT tanghm studyonthesupportanchorcombinedtechniquetocontrolperilousrockatthesourceofavalanchebyfracturemechanics
first_indexed 2025-07-06T15:26:56Z
last_indexed 2025-07-06T15:26:56Z
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