Prediction of Potential Heave of Swelling Soil PDF Download
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Author: LD. Johnson
Publisher:
ISBN:
Category : Capillary pressures
Languages : en
Pages : 8
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Book Description
Methods of characterizing swell behavior and predicting total potential heave of foundation soils were compared with field measurements for three test sections. The methods used included nine empirical procedures, three types of consolidometer tests, and a thermocouple psychrometric soil suction method. It was found that simple classification tests can provide reasonable estimates of field heaves. Predictions of potential heave using the consolidometer were sometimes low and may often represent minimal heaves when compared to field observations. Predictions based on the soil suction method provided reasonable upper limits for all test sites.
Author: LD. Johnson
Publisher:
ISBN:
Category : Capillary pressures
Languages : en
Pages : 8
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Book Description
Methods of characterizing swell behavior and predicting total potential heave of foundation soils were compared with field measurements for three test sections. The methods used included nine empirical procedures, three types of consolidometer tests, and a thermocouple psychrometric soil suction method. It was found that simple classification tests can provide reasonable estimates of field heaves. Predictions of potential heave using the consolidometer were sometimes low and may often represent minimal heaves when compared to field observations. Predictions based on the soil suction method provided reasonable upper limits for all test sites.
Author: Lawrence D. Johnson
Publisher:
ISBN:
Category : Foundations
Languages : en
Pages : 206
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Book Description
Author: Hongyu Tu
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: John D. Nelson
Publisher: John Wiley & Sons
ISBN: 1118415299
Category : Technology & Engineering
Languages : en
Pages : 416
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Book Description
Your guide to the design and construction of foundations on expansive soils Foundation Engineering for Expansive Soils fills a significant gap in the current literature by presenting coverage of the design and construction of foundations for expansive soils. Written by an expert author team with nearly 70 years of combined industry experience, this important new work is the only modern guide to the subject, describing proven methods for identifying and analyzing expansive soils and developing foundation designs appropriate for specific locations. Expansive soils are found worldwide and are the leading cause of damage to structural roads. The primary problem that arises with regard to expansive soils is that deformations are significantly greater than in non-expansive soils and the size and direction of the deformations are difficult to predict. Now, Foundation Engineering for Expansive Soils gives engineers and contractors coverage of this subject from a design perspective, rather than a theoretical one. Plus, they'll have access to case studies covering the design and construction of foundations on expansive salts from both commercial and residential projects. Provides a succinct introduction to the basics of expansive soils and their threats Includes information on both shallow and deep foundation design Profiles soil remediation techniques, backed-up with numerous case studies Covers the most commonly used laboratory tests and site investigation techniques used for establishing the physical properties of expansive soils If you're a practicing civil engineer, geotechnical engineer or contractor, geologist, structural engineer, or an upper-level undergraduate or graduate student of one of these disciplines, Foundation Engineering for Expansive Soils is a must-have addition to your library of resources.
Author: Amer Ali Al-Rawas
Publisher: Taylor & Francis
ISBN: 1134154399
Category : Technology & Engineering
Languages : en
Pages : 540
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Book Description
Expansive Soils provides the reader with easy and specific access to problems associated with expansive soils, characterisitics and treatment, and evaluation and remediation. Set up with contributions from worlwide expert, this main reference guide is intended for engineers, researchers and senior students working on soil
Author: John Nelson
Publisher: John Wiley & Sons
ISBN: 9780471181149
Category : Technology & Engineering
Languages : en
Pages : 290
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Book Description
Essential technical information for building on expansive soils--complete with practical, proven design methods. Expansive Soils examines factors that influence the design offoundations and pavements built on expansive soils, and exploreskey design procedures and remedial measures that address thesefactors effectively. Backed by the authors' extensive research andexperience --including interviews with practicing engineers workingwith expansive soils --this authoritative volume is an importantreference text for geotechnical and foundation engineers,geologists, construction professionals, and students. Easy to understand and apply, Expansive Soils contains: * Site investigation techniques for identification andclassification of expansive soils * Heave prediction methods using different types of data --withrigorous treatment of soil suction theory and measurement,oedometer tests, and more * Alternative design procedures for drilled pier and slab-on-gradefoundations, highway and airfield pavements * Treatment and chemical stabilization techniques --including salttreatment; moisture barriers; lime and cement stabilization; andother procedures * Remedial measures such as drainage control, and removal withreplacement and compaction control * Sample problems illustrating practical applications.
Author: Gary L. Schneider
Publisher:
ISBN:
Category : Soil mechanics
Languages : en
Pages : 83
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Book Description
Author: Joseph C. Goode
Publisher:
ISBN:
Category : Soil mechanics
Languages : en
Pages : 482
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Book Description
Author: Fu Hua Chen
Publisher: Elsevier
ISBN: 044460166X
Category : Technology & Engineering
Languages : en
Pages : 301
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Book Description
Foundations on Expansive Soils provides the practicing engineer with a summary of the state-of-the-art of expansive soils and practical solutions based on the author's experience. The book is organized into two parts. Part I deals with theory and practice, and summarizes some of the theoretical physical properties of expansive soils. It also discusses various techniques employed to found structures on expansive soils such as drilled pier foundation, mat foundation, moisture control, soil replacement, and chemical stabilization. Topics covered include the origin, mineralogical composition, and the basic structure of expansive soils; the migration of water, swelling potential, and swelling pressure; site investigations and laboratory testing; moisture control; and soil stabilization. Part II presents case studies on the following: distress caused by pier uplift; distress caused by the improper design and construction of a drilled pier foundation system; distress caused by heaving of footing pad and floor slab; distress caused by heaving of continuous footings; and distress caused by a rise of ground water.
Author: Lawrence D. Johnson
Publisher:
ISBN:
Category : Clay
Languages : en
Pages : 29
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Book Description
A relatively economical and expedient numerical procedure and computer code based on the finite difference method were developed for predicting heave with time for heterogeneous expansive soils beneath structures idealized as two-dimensional. The computer code will also compute the potential heave assuming saturation of the foundation soils based on McDowell's swell data. The heave with time estimates should be useful for structures near which penetration of rainwater from the ground surface is permitted, provided that ponding of surface water and external water from leaking water and sewer lines does not occur. The potential heave should be useful if the foundation soils become saturated from excessive watering, poor surface drainage, and leaking water and sewer lines. The required input data include the structural load, specific gravity, liquid and plastic limits, initial dry density and water content, coefficient of vertical permeability, ratio of the horizontal to the vertical coefficient of permeability, and swell and suction relationships of the foundation soils.
