Behavior Of Stiff Cylinders Buried In Sand Under Static Loading
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Behavior Of Stiff Cylinders Buried In Sand Under Static Loading
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Author : Charles D. Norman
language : en
Publisher:
Release Date : 1973
Behavior Of Stiff Cylinders Buried In Sand Under Static Loading written by Charles D. Norman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Cylinders categories.
Behavior Of Flexible Cylinders Buried In Sand Under Static And Dynamic Loading
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Author : Gayle E. Albritton
language : en
Publisher:
Release Date : 1968
Behavior Of Flexible Cylinders Buried In Sand Under Static And Dynamic Loading written by Gayle E. Albritton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Materials categories.
The general objective of the investigation was to study experimentally the behavior to failure of flexible, horizontally oriented cylinders buried at various depths in dense, dry sand and subjected to either static or dynamic surface overpressures. Static and dynamic tests were conducted on 33 different cylinders, fabricated of high-yield-strength aluminum. Results indicated that collapse of the cylinders occurred while the strains in the cylinder walls were still in the elastic range. The cylinders buried at the shallow depths (zero to one-half cylinder diameter above the crown) collapsed by a catastrophic snap-through or caving of the crown. For the cylinders buried at depths of three-quarters to two cylinder diameters above the crown, the mode of collapse was an instantaneous elastic buckle that occurred at the spring line or invert of the cylinder. The collapse mode of the cylinders under dynamic overpressure was similar to that of the cylinders collapsing under static overpressure. The results of the investigation verified the applicability of an equation for predicting the static collapse overpressure for smooth-walled, horizontally oriented, buried cylindrical structures and entranceways. The hoop-compression theory was found to be applicable for analyzing the structural design to determine if the cylinder would collapse in the elastic range. (Author).
Buried Structures
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Author : Dr P S Bulson
language : en
Publisher: CRC Press
Release Date : 1984-12-20
Buried Structures written by Dr P S Bulson and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984-12-20 with Architecture categories.
Much of the infrastructure of modern society is buried below ground. Pipeline, conduits and culverts carry the services on which our economies depend and the strength and resilience of such structures is of vital importance. Larger underground construction is becoming more common in cities and towns, and in defence installations. This book brings together the store of theoretical, analytical, experimental and design-based knowledge that has been built up on the subject of buried structures. The author discusses the principles of soil arching, stress distribution and soil properties, as well as the design problems of static and dynamic loads, strength and safety. The stability of thin-walled buried structures receives particular attention, as does the behaviour of underground construction under localized and nuclear explosions. Test facilities and design codes of practice are reviewed, and the range of structures discussed in the book extends from thick- and thin-walled culverts, conduits and water pipelines to arches, domes, spherical shells, vertical capsules, blast shelters and thin-walled road tunnels.
Wes Publications Of Interest To Facilities Engineers
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Author : Waterways Experiment Station (U.S.)
language : en
Publisher:
Release Date : 1976
Wes Publications Of Interest To Facilities Engineers written by Waterways Experiment Station (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Military bases categories.
List Of Publications Of The U S Army Engineer Waterways Experiment Station
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Author : U.S. Army Engineer Waterways Experiment Station
language : en
Publisher:
Release Date : 1985
List Of Publications Of The U S Army Engineer Waterways Experiment Station written by U.S. Army Engineer Waterways Experiment Station and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Hydraulic engineering categories.
List Of Publications Of The U S Army Engineer Waterways Experiment Station
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Author : Rose Mary Peck
language : en
Publisher:
Release Date : 1985
List Of Publications Of The U S Army Engineer Waterways Experiment Station written by Rose Mary Peck and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Coastal engineering categories.
List Of Publications Of The U S Army Engineers Waterway Experiment Station
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Author : United States. Army. Corps of Engineers
language : en
Publisher:
Release Date : 1976
List Of Publications Of The U S Army Engineers Waterway Experiment Station written by United States. Army. Corps of Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
Influence Of Soil Modulus On The Behavior Of Cylinders Buried In Sand
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Author : Jay R. Allgood
language : en
Publisher:
Release Date : 1968
Influence Of Soil Modulus On The Behavior Of Cylinders Buried In Sand written by Jay R. Allgood and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Cylinders categories.
Experimental and theoretical results are given that provide information on the influence of soil properties on the behavior of buried cylinders whose axes are parallel to the surface. Sand type, sand density, and cylinder stiffness were varied in 12 static tests on 5-inch-diameter thin-metal cylinders. The stiffness of these cylinders was less than that of others in the literature for which complete information on soil properties was available. The main contribution of the research presented is that it provides a unified method for determining deflections and the critical buckling load, both of which are based on the one-dimensional confined compression modulus measured in a standard laboratory test. This has not been done heretofore. Also, a relation for arching across buried cylinders is given which permits computation of the thrust at the haunches. Another feature of the work is the development of a matrix solution for determining the interface pressure distribution from measurements of strains in the cylinder. Thus, in effect, the cylinders can be used as biaxial soil pressure sensors. (Author).
The Behavior Of Shallow Buried Cylinders
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Author : Jay R. Allgood
language : en
Publisher:
Release Date : 1965
The Behavior Of Shallow Buried Cylinders written by Jay R. Allgood and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with categories.
Behavior Of Circular Tubes Buried In Sand Under Dynamic Loading
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Author : Algirdas G. Leskys
language : en
Publisher:
Release Date : 1968
Behavior Of Circular Tubes Buried In Sand Under Dynamic Loading written by Algirdas G. Leskys and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Materials categories.
The general objective of this investigation was to study experimentally the behavior to failure of flexible, horizontally oriented circular tubes buried at various depths in dense, dry sand and subjected to dynamic surface overpressures. Dynamic tests were conducted on ten brass tubes in the Small Blast Load Generator. The tubes had a wall thickness of 0.005 inch, an outside diameter of 4 inches, and a specially isolated 5.75-inch-long test section. The tubes were flexible and had a stiffness EI/R3 of 0.018 psi. To examine the effect of depth of burial, tests were conducted in dense, dry sand at depths ranging from 1 to 16 inches, or four tube diameters above the crown. The dynamic tests were conducted at overpressures ranging from 6.2 to 34.9 psi. Measurements were made of the applied overpressure, and the tube deflection was recorded by means of a high-speed camera linked to the pressure-time base. Results indicate that collapse of the tubes was initiated by a buckle that occurred along a longitudinal seam where the tubes were spliced. The dynamic collapse overpressure increased greatly with increased depth of burial down to a depth of one tube diameter; subsequently, the increase in collapse overpressure with increase of burial depth to four tube diameters was insignificant. The dynamic collapse overpressure was approximately the same as the static collapse overpressure as determined from correlation with previously reported results. The results of this investigation have verified the applicability of an equation for predicting the dynamic collapse overpressure of very flexible tubes. (Author).