Zobrazeno 1 - 10
of 37
pro vyhledávání: '"R. D. Dick"'
Publikováno v:
Rock Fragmentation by Blasting ISBN: 9781003078104
Rock Fragmentation by Blasting
Rock Fragmentation by Blasting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39d4c9eb13685c0c9d5d2d8db7c7c8e9
https://doi.org/10.1201/9781003078104-13
https://doi.org/10.1201/9781003078104-13
Publikováno v:
Fragblast. 2:269-294
Small-scale crater formation tests were conducted to compare to full scale tests. Sand was used for the cratering tests to simulate cratering in weak geologic materials such as highly weathered rock, soils, and alluvium. The test variables included:
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10973f35ef539cbf4ba788c64851e242
https://doi.org/10.1080/13855149809408778
https://doi.org/10.1080/13855149809408778
Publikováno v:
Fragblast. 2:143-180
Three hundred small-scale explosive charge cratering tests were performed in concrete in an effort to increase the understanding of the cratering process. Charge masses ranged from 1.0 to 19.7 g (10-9 to 10-8 kt). The free face orientations were hori
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06793e6cd9e61454239335ad6dbb0efb
https://doi.org/10.1080/13855149809408883
https://doi.org/10.1080/13855149809408883
Publikováno v:
Rock Mechanics and Rock Engineering. 30:95-111
Joints and bedding planes are present in nearly all geologic media. These discontinuities vary in the extent to which they are open and the material with which they are filled. The presence of such discontinuities affect the ground motions that resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38b9e545fa39c37c68ed169545feb525
https://doi.org/10.1007/bf01020127
https://doi.org/10.1007/bf01020127
Publikováno v:
Fragblast. 1:393-416
A series of model tests are described wherein explosive charges are used to move sand and displace submerged obstacles. The US Navy has shown an interest in being able to provide a clear path to a beachhead for shallow draft craft in time of assault
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f89ef3712fac13d57d9934f4adc9060c
https://doi.org/10.1080/13855149709408406
https://doi.org/10.1080/13855149709408406
Publikováno v:
Rock Mechanics and Rock Engineering. 30:1-18
Results are presented from a testing program to study the effect weak layers embedded in a strong rock strata have on particle velocity when subjected to explosive loading. A similar computational study had been conducted earlier with WONDY — a fin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54e05187cbe770fb826482b11003d6c6
https://doi.org/10.1007/bf01020110
https://doi.org/10.1007/bf01020110
Publikováno v:
Fragblast. 1:285-304
Rock samples (Paintbrush Tuff from the Nevada Test Site) were subjected to high strain rate loading using split-Hopkinson pressure bars. Both competent and granular samples were loaded in compression to 600 MPa with strain rates to 4000 s−1. Sample
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81f6330bf043f16c9dfce679b2ff88fa
https://doi.org/10.1080/13855149709408400
https://doi.org/10.1080/13855149709408400
Publikováno v:
Rock Mechanics and Rock Engineering. 28:37-57
This paper describes an experimental program that was conducted in 1981 through 1983 in the Anvil Points Oil Shale Mine near Rifle, Colorado. The objective was to examine the response of the kerogen rich oil shale to explosive charges in relatively l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d750d47d867fba0c9ffc8588fc6aeed7
https://doi.org/10.1007/bf01024772
https://doi.org/10.1007/bf01024772
Publikováno v:
Journal of Geotechnical Engineering. 120:1684-1703
A total of 51 model tests of cratering and soil loosening were conducted using small charges of pentaerythritol tetranitrate detonated at different depths of burial and different gravitational accelerations in a lunar soil simulant to model condition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e82fbeb8c0a972344e4d8e33f16b22b
https://doi.org/10.1061/(asce)0733-9410(1994)120:10(1684)
https://doi.org/10.1061/(asce)0733-9410(1994)120:10(1684)
Publikováno v:
Journal of Aerospace Engineering. 5:44-58
Twelve model tests of chemical explosives (1 g and 0.25 g) of PETN were conducted at 1 g (=6g [moon]) and 10 g (=60g [moon]) using the geotechnical centrifuge to determine the effect of chemical explosives on cratering and loosening a compacted lunar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ba4d44ae7e1d0b59ad7ccaa04fd237b
https://doi.org/10.1061/(asce)0893-1321(1992)5:1(44)
https://doi.org/10.1061/(asce)0893-1321(1992)5:1(44)