Download or read book High explosive Cratering in Frozen and Unfrozen Soils in Alaska written by North Smith and published by . This book was released on 1980 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High explosive Cratering in Frozen and Unfrozen Soils in Alaska written by North Smith and published by . This book was released on 1980 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explosive cratering tests were conducted in seasonally frozen and thawed gravel at Ft. Richardson near Anchorage, Alaska, and in seasonallly frozen and thawed silt overlying permafrost and in silt permafrost at Ft. Wainwright near Fairbanks, Alaska. Explosive charge weights ranged from 26 to 3120 lb and charge burial depths ranged from about 3 to 40 ft. The cube root of the charge weight scaling was used to determine maximum scaled crater dimensions and optimum scaled depth of burial of the charge. Test results for frozen and thawed gravel were essentially the same because of the low moisture content and the relatively shallow depth of freezing (5 to 6 ft). The optimum depth of burial of the charge for maximizing the apparent radius and depth and the true radius was about 1.8 times the cube root of the charge weight for both the frozen and thawed conditions. In seasonally frozen silt overlying a talik and silt permafrost the maximum scaled crater dimensions and optimum scaled burial depths of the charge were smaller than for the thawed condition except for the true crater dimensions. The channeling of energy in the talik produces maximum crater dimensions and an optimum burial depth for the true crater that is larger than for the thawed condition. The results for the homogeneous silt permafrost were very similar to the frozen gravel results with much smaller maximum crater dimensions and smaller optimum charge burial depths than for the thawed silt overlying permafrost.

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1982 with total page 1060 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CRREL Technical Publications written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1981 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1982-10 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography on Snow Ice and Frozen Ground with Abstracts written by and published by . This book was released on 1983 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Glaciological Data written by and published by . This book was released on 1977 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Report written by and published by . This book was released on 1989 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Polar and Glaciological Literature written by and published by . This book was released on 1981 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Permafrost a Bibliography 1978 1982 written by and published by . This book was released on 1977 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CRREL Benchnotes written by and published by . This book was released on 1976 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book R D Abstracts written by Technology Reports Centre (Great Britain) and published by . This book was released on 1981 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1981 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Peaceful Uses for Nuclear Explosives written by and published by . This book was released on 1964 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book TID written by and published by . This book was released on 1963 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1980 with total page 898 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Excavations in Frozen Ground written by Clifton W. Livingston and published by . This book was released on 1956 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: