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Author:

Cao, X. L. (Cao, X. L..) | Gao, W. X. (Gao, W. X..) (Scholars:高文学) | Wu, N. (Wu, N..) | Zhao, H. (Zhao, H..) | Liu, D. H. (Liu, D. H..)

Indexed by:

CPCI-S

Abstract:

Blasting excavation is one of the most commonly used methods in road high cutting slope construction. Under blasting vibration wave, highway excavation process and its operation is directly influenced by the stability of high cutting slope. Therefore, based on the Lutuo Road construction project, a FEM model is established by midas GTS. The stress field, displacement field and velocity distribution and transfer laws is analyzed under blasting vibration. Conclusions about the dynamic response of high cutting slope under blasting vibration are as follows: (1) As the explosion is close to the slope's corner, a stress concentration mainly effected field is formed within a certain altitude of the slope's corner. (2) The displacement and vibration velocity of the high cutting slope has obvious magnification along the vertical direction under blasting vibration, which is similar to natural earthquake effect. (3) Millisecond-delay-control blasting technology is adopted, so the vertical vibration velocity of the buildings which are 80 m away from the blasting source is controlled below 2 cm/s, which is considered to be safe according to the blasting vibration safety control standard.

Keyword:

Author Community:

  • [ 1 ] [Cao, X. L.]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China
  • [ 2 ] [Gao, W. X.]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China
  • [ 3 ] [Wu, N.]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China
  • [ 4 ] [Zhao, H.]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China
  • [ 5 ] [Liu, D. H.]Beijing Rd Engn Cost & Quota Management Stn, Beijing, Peoples R China

Reprint Author's Address:

  • [Cao, X. L.]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China

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Source :

ROCK DYNAMICS: FROM RESEARCH TO ENGINEERING

Year: 2016

Page: 403-408

Language: English

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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