Theoretical and Experimental Investigation of Buried Concrete Structures. Volume I. Analysis and Experiment

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ISBN 13 :
Total Pages : 111 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Theoretical and Experimental Investigation of Buried Concrete Structures. Volume I. Analysis and Experiment by : J. H. Smith

Download or read book Theoretical and Experimental Investigation of Buried Concrete Structures. Volume I. Analysis and Experiment written by J. H. Smith and published by . This book was released on 1975 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of two parallel, correlated studies concerning the structural behavior of prefabricated soil-covered concrete arches. One study has been analytical in nature and the other experimental in nature. In the analytical work a computer code has been developed which employs an original finite element method for determining both static and dynamic responses of the soil-structure system of interest. Behavior beyond the linear range is provided for in the code. The code is quite general and should also be useful in analyzing a variety of other structures and the user's manual is present in Volume 2 of this report. The experimental work has consisted of laboratory tests on one-third scale models of the actual 18-foot-radius prototype arches. Both bare and soil-covered arches subjected to static as well as dynamic loads have been considered in the laboratory tests. The primary purpose of the experimental study has been to verify the solutions obtained from the computer code, so that the code can be used with maximum confidence for future studies of various parameters that are involved in the response of the arch. (Author).

Theoretical and Experimental Investigation of Buried Concrete Structures. Volume II. User's Guide to Computer Code VANISH.

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ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Theoretical and Experimental Investigation of Buried Concrete Structures. Volume II. User's Guide to Computer Code VANISH. by : W. P. Vann

Download or read book Theoretical and Experimental Investigation of Buried Concrete Structures. Volume II. User's Guide to Computer Code VANISH. written by W. P. Vann and published by . This book was released on 1975 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides details concerning the digital computer code, VANISH, which was developed for analyzing the Static And Dynamic behavior of Nonlinear Interacting Soil Structures and the volume is intended to serve as a user's guide to VANISH. In particular, the code has been designed to be efficient and reliable in determining the response of a soil-covered circular arch used as a aircraft shelter. However, it should also be useful in analyzing a variety of other planar structures. Volume 1 of this report, entitled Summary of Analysis and Experiment gives the fundamental concepts underlying the VANISH code. Nevertheless, most of the knowledge needed merely to use the VANISH code is available from the present volume, and requires only a general understanding of how the code actually solves a given problem. (Author).

Theoretical and Experimental Investigation of Buried Concrete Structures. Volume III. Feasibility Study of Tensile Strain-Rate Sensitivity of Concrete

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ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Theoretical and Experimental Investigation of Buried Concrete Structures. Volume III. Feasibility Study of Tensile Strain-Rate Sensitivity of Concrete by : J. H. Smith

Download or read book Theoretical and Experimental Investigation of Buried Concrete Structures. Volume III. Feasibility Study of Tensile Strain-Rate Sensitivity of Concrete written by J. H. Smith and published by . This book was released on 1975 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: For previous research conducted by the project team on the subject of dynamics of buried structures, it was determined that internal blasts excite an arch predominately in a breathing or tensile mode. The critical stresses and strains resulting from such loadings occur in the first few milliseconds after detonation. These critical values, and their relationship to the failure mechanism of plain concrete was the purpose of this research effort. Since a thorough investigation in this area is expensive and time consuming, a short feasibility study was undertaken and a number of reasonably uncomplicated experiments were conducted as a pilot study. Static and dynamic tensile splitting strength tests were performed with varying stress rates. Two loading techniques, an electro-servo-controlled hydraulic and a drop hammer, were tried. While the shape of the loading function was more easily controlled with the hydraulic system, only the drop hammer method was capable of producing the fast (1 to 40 ms.) rise time to failure that was desired. Conclusions were reached that the tensile failure strength of plain concrete can be accurately determined using a drop hammer equipped with a large capacity dynamic load cell (200,000 pound capacity) for rise times in the above mentioned range. (Author).

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 1346 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Earthquakes and Earthquake Insurance

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ISBN 13 :
Total Pages : 1430 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Earthquakes and Earthquake Insurance by : United States. Congress. House. Committee on Banking, Finance, and Urban Affairs. Subcommittee on Policy Research and Insurance

Download or read book Earthquakes and Earthquake Insurance written by United States. Congress. House. Committee on Banking, Finance, and Urban Affairs. Subcommittee on Policy Research and Insurance and published by . This book was released on 1990 with total page 1430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Masters Theses in the Pure and Applied Sciences

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Publisher : Springer Science & Business Media
ISBN 13 : 1461573882
Total Pages : 414 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, SIld disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna and broader dissemination. tional publishing house to assure improved service Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 30 (thesis year 1985) a total of 12,400 theses titles from 26 Canadian and 186 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work.

Nuclear Science Abstracts

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ISBN 13 :
Total Pages : 764 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Nuclear Science Abstracts by :

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Groundwater-induced geological disasters in underground engineering: Theoretical, experimental, and numerical approaches

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Publisher : Frontiers Media SA
ISBN 13 : 2832541259
Total Pages : 164 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Groundwater-induced geological disasters in underground engineering: Theoretical, experimental, and numerical approaches by : Shengli Yang

Download or read book Groundwater-induced geological disasters in underground engineering: Theoretical, experimental, and numerical approaches written by Shengli Yang and published by Frontiers Media SA. This book was released on 2023-12-21 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water inrush (WI) is one of the most dangerous geological disasters in underground engineering, with significant human casualties and economic losses. To prevent and control WI disasters, great efforts have been made to address WI mechanisms for more than half a century. In particular, the seepage instability theory is hitherto one of the most widely used theoretical models. This theory portrays that the seepage system will undergo structural instability when the initial values of permeability and boundary pressure meet certain conditions, which manifests that the permeability parameter is one of the most valuable indicators to unveil WI mechanisms. However, rock permeability is determined by its internal structural characteristics, which can be affected by water chemical composition, stress environment, and temperature. In this regard, it is of great necessity and importance to facilitate a better understanding of the holistic impacts of multi-field coupling on rock internal structure and deformation failure characteristics. This Research Topic aims to initiate a global forum for presenting and disseminating the latest advancements of WI mechanisms, which entails the characterization of physical and laboratory tests, 3D reconstruction of rock internal structure, numerical approaches, theoretical models under multi-field coupling, and filed date analysis methods.

High Strength Support for Soft Surrounding Rock in Deep Underground Engineering

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Publisher : Springer Nature
ISBN 13 : 9811538441
Total Pages : 193 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis High Strength Support for Soft Surrounding Rock in Deep Underground Engineering by : Qi Wang

Download or read book High Strength Support for Soft Surrounding Rock in Deep Underground Engineering written by Qi Wang and published by Springer Nature. This book was released on 2020-03-02 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the field of surrounding rock control mechanisms and support technologies in underground engineering, and proposes a high-strength support system to address the complex conditions in underground engineering, such as high stress, extremely soft rocks, fault fracture zone and strong mining activity. It also comprehensively discusses the concept and bearing mechanisms of the supporting system, design calculation methods, field application and key construction technologies. The book describes the design and construction of a large-scale mechanical test system, independently developed by the author for high- strength confined concrete arches, which can also be used to define the mechanism of deformation and failure of confined concrete arches. Further, the book explores the application of the confined concrete support system in underground engineering with complex conditions, and its control effect on soft surrounding rock. The first international book presenting the theory and key technologies of high-strength, confined concrete support, it is a valuable reference resource for design, construction and supervision staff in the field of geotechnical engineering, as well as for teachers, students and researchers.

Architectural Construction Materials: Concretes and cements. v. 1. 1964-May l976. v. 2. Jun 1976-Apr 1978

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ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Architectural Construction Materials: Concretes and cements. v. 1. 1964-May l976. v. 2. Jun 1976-Apr 1978 by : United States. National Technical Information Service

Download or read book Architectural Construction Materials: Concretes and cements. v. 1. 1964-May l976. v. 2. Jun 1976-Apr 1978 written by United States. National Technical Information Service and published by . This book was released on 1976 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Technical Abstract Bulletin

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ISBN 13 :
Total Pages : 684 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Technical Abstract Bulletin by :

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Applied Mechanics Reviews

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ISBN 13 :
Total Pages : 578 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Applied Mechanics Reviews by :

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1950 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rock bolting: Theory and application in mining and underground construction

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Publisher : Routledge
ISBN 13 : 1351418181
Total Pages : 796 pages
Book Rating : 4.3/5 (514 download)

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Book Synopsis Rock bolting: Theory and application in mining and underground construction by : Ove Stephansson

Download or read book Rock bolting: Theory and application in mining and underground construction written by Ove Stephansson and published by Routledge. This book was released on 2021-06-23 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: This includes the Proceedings of the international symposium, Abisko, Sweden, 28 August-2 September 1983. Rock bolts today represent the dominant support system in mines and underground structures. Some results and experiences are discussed to give a better understanding of the strength of individual rock bolts and systems of bolts, and the interaction between bolts and rock masses of various types. Topics covered are as follows: rock bolting in theory and experiments; design principles and experience; and ground control and instrumentation: cable bolting.

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 1344 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1976 with total page 1344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Tunnels and Underground Cities: Engineering and Innovation Meet Archaeology, Architecture and Art

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Publisher : CRC Press
ISBN 13 : 1000175367
Total Pages : 711 pages
Book Rating : 4.0/5 (1 download)

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Book Synopsis Tunnels and Underground Cities: Engineering and Innovation Meet Archaeology, Architecture and Art by : Daniele Peila

Download or read book Tunnels and Underground Cities: Engineering and Innovation Meet Archaeology, Architecture and Art written by Daniele Peila and published by CRC Press. This book was released on 2020-05-18 with total page 711 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art. Volume 3: Geological and geotechnical knowledge and requirements for project implementation contains the contributions presented in the eponymous Technical Session during the World Tunnel Congress 2019 (Naples, Italy, 3-9 May 2019). The use of underground space is continuing to grow, due to global urbanization, public demand for efficient transportation, and energy saving, production and distribution. The growing need for space at ground level, along with its continuous value increase and the challenges of energy saving and achieving sustainable development objectives, demand greater and better use of the underground space to ensure that it supports sustainable, resilient and more liveable cities. The contributions cover a wide range of topics, from geological and geotechnical key-factors for tunnel design, excavation geometry using digital mapping, real time monitoring systems, via geotechnical data standardization and management, to drone based deformation monitoring and Probabilistic Fault Displacement Hazard Analysis. The book is a valuable reference text for tunnelling specialists, owners, engineers, archaeologists, architects, artists and others involved in underground planning, design and building around the world, and for academics who are interested in underground constructions and geotechnics.

A Model Study of Dynamically Loaded Square Footings on Dry Sand

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ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis A Model Study of Dynamically Loaded Square Footings on Dry Sand by : Jack K. Poplin

Download or read book A Model Study of Dynamically Loaded Square Footings on Dry Sand written by Jack K. Poplin and published by . This book was released on 1969 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The investigation reported herein was undertaken to develop an approach to modeling displacements of surface and shallow-buried footings on dry sand subject to high-intensity, single-pulse loads. A hypothetical shallow-bured structure with an isolated footing loaded by airblast overpressure produced by detonation of a nuclear weapon was assumed for design of load pulses on nine model footings used: footing widths of 4.5, 6.0, and 7.5 in. and depth-of-burial to footing width ratios of 0, 0.5, and 1.0. The principles of similitude were used to scale length, force, and time in the models. The models were placed in mobile test bins of uniform, fine, dry sand (90 percent relative density) and subjected to dynamic and static loading. Nondimensional load-displacement relations dependent only on depth-of-burial ratio were developed relating maximum displacement to peak dynamic load, footing width, and soil shear strength gradient. When the dynamic response of the footings in the form of reaction-displacement curves was compared with static response, an increase in initial stiffness and ultimate strength was observed for dynamic loading. However, these dynamic increases were greatest when the static shear strength was lowest, i.e. footings on the surface, and were least for footings buried at a depth equal to its width where the static overburden produced a substantial increase in shear strength. (Author).

ERDA Energy Research Abstracts

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ISBN 13 :
Total Pages : 906 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: