Download or read book Evaluation of the Retained Earth MSE Wall System by Foster Geotechnical a Division of L B Foster Company written by Highway Innovative Technology Evaluation Center (U.S.) and published by ASCE Publications. This book was released on 2005-01-01 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Retained Earth MSE Wall System by Foster Geotechnical a Division of L B Foster Company written by and published by Hitec. This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Geo Con VERT Wall System written by Highway Innovative Technology Evaluation Center (U.S.) and published by ASCE Publications. This book was released on 2002-01-01 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepared by the Highway Innovative Technology Evaluation Center (HITEC), a CERF/IIEC Innovation Center This report describes a HITEC evaluation designed to determine the basic capabilites and limitations of the Geo-Con VERT Wall for use as a technically viable permanent excavation support retaining wall system. The evaluation was conducted based on design, construction, performance, and quality assurance information outlined in the HITEC Protocol. The Geo-Con VERT Wall System is an in-situ retaining wall system intended as an alternative to other types of cut walls such as soldier pile and anchored retaining walls. Geo-Con VERT Wall System is comprised of: deep soil mix columns consisting of overlapping or tangent soil-cement columns along the front face backed up by tangent rows of overlapping soil-cement columns; a soil-cement relieving platform overtop the columns; steel beams embedded in the front face soil-cement columns for support of the permanent facing; and permanent facing consisting of precast, reinforced concrete panels or reinforced cast-in-place concrete. The relieving platform is intended to provide internal stability by typing the soil-mix columns together and transferring the load to the bottom of the columns.
Download or read book Evaluation of Precast GeoMega MSE Wall System by the Reinforced Earth Company with Geostrap Polymeric Reinforcement written by and published by . This book was released on 2016-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reliability Analysis of Mechanically Stabilized Earth MSE Walls written by Tanit Chalermyanont and published by . This book was released on 2002 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Stabilized Earth Wall System by TandB Structural Systems written by and published by . This book was released on 2012-03-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Structural Performance of Bridge MSE Retaining Walls written by Zaid SM Momani and published by . This book was released on 2021 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanically Stabilized Earth (MSE) walls have been used extensively since the first MSE wall constructed in California in the early 70's. MSE walls proved that they are reliable, cost-effective, aesthetically pleasing, and easily constructible. However, the design criteria of an MSE wall does not always incorporate the comprehensive behavior. A reasonable number of MSE walls do not perform as expected; a few experienced catastrophic failure. The current study was inspired by multiple MSE walls showing excessive movement of the precast panels in Fort Worth and Hurst, Texas. Three most critical MSE walls were selected for this study. The main focus of this research is to 1) periodically monitor the movement of the walls; 2) evaluate the effect of wall movement on earth reinforcement, precast panels, approach slab, copings and traffic barriers; 3) recommend remedial measures on the earth reinforcement to prevent rupture or pullout; 4) perform several field and lab tests on the backfill soil material to check the integrity of the backfill soil; and 5) develop a 3D Finite Element Modeling (FEM) of an MSE wall using ABAQUS software to predict the actual behavior of an MSE wall and investigate the wall failure criteria. Several non-destructive tests were performed on the critical walls. A laser scanner was used to monitor the movement of the precast panels. Ground Penetrating Radar (GPR) was used to examine the integrity of the earth reinforcement. A subsurface investigation was conducted using Resistivity Imaging (RI) technique to investigate the presence of groundwater table or perched water zones. Regression and structural reliability analyses were carried out to investigate the effect of significant parameters on wall performance and check the integrity of MSE wall design formulas of FHWA (2009), respectively.
Download or read book A Field Study of Construction Deformations in a Mechanically Stabilized Earth Wall written by Nathan Daniel Abele and published by . This book was released on 2006 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanically stabilized earth (MSE) has been used for over thirty years in the United States. The advantages of MSE, including economics, often out weigh their disadvantages. MSE structures are built with a growing frequency and are not likely to disappear in the foreseeable future. Complete understanding of the system has not yet been widely achieved. This thesis is a study of the movement and deformation during construction of a mechanically stabilized earth structure built as a bridge abutment. The MSE wall studied for this research was constructed as part of an ODOT bridge replacement and widening project located in northwest Ohio. The studied MSE system for this project was a Reinforced Earth Company product. The subsurface conditions under the main MSE wall face include an approximate twenty foot thick clay layer over limestone bedrock. Phased construction was used along with both cast in place and precast leveling pads. Some wall facing deformations presented are expected, while others are more difficult to explain. Results of this research provide information that can be used to better understand deformation during the construction process of similar walls constructed in the future. Comparison of these results to performance of other MSE walls may ease concerns of possible larger problems. Further similar work is likely needed to explain some of the trends presented here.
Download or read book Foundations Earth Structures written by and published by . This book was released on 1986 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cal OSHA Pocket Guide for the Construction Industry written by and published by . This book was released on 2015-01-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cal/OSHA Pocket Guide for the Construction Industry is a handy guide for workers, employers, supervisors, and safety personnel. This latest 2011 edition is a quick field reference that summarizes selected safety standards from the California Code of Regulations. The major subject headings are alphabetized and cross-referenced within the text, and it has a detailed index. Spiral bound, 8.5 x 5.5"
Download or read book Evaluation of Soil and Rock Properties written by P. J. Sabatini and published by . This book was released on 2004-10-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents state-of-the-practice information on the evaluation of soil and rock properties for geotechnical design applications. This document addresses the entire range of materials potentially encountered in highway engineering practice, from soft clay to intact rock and variations of materials that fall between these two extremes. Information is presented on parameters measured, evaluation of data quality, and interpretation of properties for conventional soil and rock laboratory testing, as well as in situ devices such as field vane testing, cone penetration testing, dilatometer, pressuremeter, and borehole jack. This document provides the design engineer with information that can be used to develop a rationale for accepting or rejecting data and for resolving inconsistencies between data provided by different laboratories and field tests. This document also includes information on: (1) the use of Geographical Information Systems (GIS) and Personal Data Assistance devices for the collection and interpretation of subsurface information; (2) quantitative measures for evaluating disturbance of laboratory soil samples; and (3) the use of measurements from geophysical testing techniques to obtain information on the modulus of soil. Also included are chapters on evaluating properties of special soil materials (e.g., loess, cemented sands, peats and organic soils, etc.) and the use of statistical information in evaluating anomalous data and obtaining design values for soil and rock properties. An appendix of three detailed soil and rock property selection examples is provided which illustrate the application of the methods described in the document.
Download or read book Design of Roadside Barrier Systems Placed on MSE Retaining Walls written by Roger P. Bligh and published by Transportation Research Board. This book was released on 2010 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 663: Design of Roadside Barrier Systems Placed on MSE Retaining Walls explores a design procedure for roadside barrier systems mounted on the edge of a mechanically stabilized earth (MSE) wall. The procedures were developed following American Association of State Highway and Transportation Officials Load and Resistant Factor Design (LRFD) practices. Appendices A through H to NCHRP Report 663 are available online. Titles of Appendices A through H are as follows: Appendix A: Design of MSE Wall; Appendix B: State-of-Practice Survey; Appendix C: Detailed Drawing of MSE Wall for Bogie Test; Appendix D: Bogie Test MSE Wall Construction Procedure; Appendix E: Detailed Drawing of MSE Wall for TL-3 Test; Appendix F: TL-3 MSE Wall Construction Procedure; Appendix G: Crash Test Vehicle Properties and Information; Appendix H: Crash Test Sequential Photographs--
Download or read book Subsurface Conditions written by Keith Turner and published by Springer. This book was released on 2008-01-26 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterisation of the shallow subsurface has gained in importance as civil and geotechnical engineering and environmental applications have become more dependent on a precise definition of geomechanical and geohydrological properties. A better understanding of the subsurface conditions offers wide-ranging benefits to governments, industry and individual citizens. Subsurface geological modelling became an economic and technologic reality in the late 1980's, when competing 3-D geoscientific information systems were the subject of considerable research and evaluation, especially by the petroleum exploration industry. Investigations in the shallow subsurface impose additional requirements that have only recently become technically and economically achievable. The very shallow urban underground environment, where many infrastructure and utilities elements are located, presents the most difficult characterisation problems. Subsurface modelling techniques have matured, along with modern data base concepts. The evolution of the Internet and Web-browser technologies has expanded information transmission and dissemination capabilities. Subsurface models are being integrated with decision-support systems to provide predictions of technical and economic performance. Yet even the most sophisticated of these models leave some uncertainty in geologic interpretation. A variety of techniques for assessing uncertainty have been developed and are being evaluated.
Download or read book Design of Small Dams written by United States. Bureau of Reclamation and published by . This book was released on 1973 with total page 860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of Pile Foundations written by US Army Corps of Engineers and published by . This book was released on 2005-01-01 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual provides information, foundation exploration and testing procedures, load test methods, analysis techniques, allowable criteria, design procedures, and construction consideration for the selection, design, and installation of pile foundations. The guidance is based on the present state of the technology for pile-soil-structure-foundation interaction behavior. This manual provides design guidance intended specifically for the geotechnical and structural engineer but also provides essential information for others interested in pile foundations such as the construction engineer in understanding construction techniques related to pile behavior during installation. Since the understanding of the physical causes of pile foundation behavior is actively expanding by better definition through ongoing research, prototype, model pile, and pile group testing and development of more refined analytical models, this manual is intended to provide examples and procedures of what has been proven successful. This is not the last nor final word on the state of the art for this technology. We expect, as further practical design and installation procedures are developed from the expansion of this technology, that these updates will be issued as changes to this manual.
Download or read book Evaluation of the SSL MSE Plus Retaining Wall System written by Highway Innovative Technology Evaluation Center (U.S.) and published by Amer Society of Civil Engineers. This book was released on 1999 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaluates the basic capabilities and limitations of the MSE Plus System for use as a technically viable precast mechanically stabilized earth (MSE) retaining wall system. The report considers material, design, construction, performance, and quality assurance. The system features rectangular segmenta
Download or read book Methods for Geochemical Analysis written by Philip A. Baedecker and published by . This book was released on 1987 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical methods used in the Geologic Division laboratories of the U.S. Geological Survey for the inorganic chemical analysis of rock and mineral samples.
