Geotechnical Engineering Articles on Environmental XPRT

The Use of a Centrifuge in Geotechnical Engineering Education

Geotechnical centrifuges have been seen to date principally as research machines. A role is now suggested in which centrifuges of modest size and cost can contribute usefully to the education and training of geotechnical engineers in college laboratories. One such machine, which has been used in teaching for 15 years, is described, and examples of the results of a series of simple demonstrations ...

Dec. 1, 1989

By ASTM International

Tyre aggregate applications in geotechnical and geoenvironmental engineering

A Tyre Aggregate (TA) is made from scrap/waste rubber tyres. Four types of tyre aggregates are classified, namely the coarse-grained, fine-grained, random and composite tyre aggregates. Applications of these tyre aggregates are varied, but they are often used as geomaterial fills and highway-pavement components. More recently, TA has found application in geoenvironmental engineering. This paper ...

May 10, 2007

By Inderscience Publishers

Geotechnical Properties of Municipal Solid Waste

A geotechnical testing program was conducted to evaluate the engineering properties of aged solid waste samples retrieved from a landfill that began accepting waste as early as 1940. The conducted tests included water content, specific gravity, Atterberg limits, grain-size distribution, compaction, permeability, consolidation, triaxial, and direct shear. Maximum dry unit weight achieved using the ...

Jun. 1, 1995

By ASTM International

Testing of Geotechnical Fabric for Use as Reinforcement

Twenty-seven commercially available petrochemical-based geotechnical fabrics, both woven and nonwoven, and one fiberglass fabric were evaluated for suitability as reinforcement in an embankment test section to be constructed on soft foundation at Pinto Pass in Mobile Harbor, Ala. by the U.S. Army Corps of Engineers Mobile District. All fabrics were subjected to initial testing in uniaxial tension ...

Dec. 1, 1978

By ASTM International

The Use of Hall Effect Semiconductors in Geotechnical Instrumentation

For the past five years or so Hall effect semiconductors have been increasingly used in the geotechnical engineering laboratories at the University of Surrey. They have been incorporated as sensing elements in local radial and axial strain measuring devices, for the small-strain instrumentation of triaxial specimens, and in small diameter boundary normal and shear stress cells. Triaxial internal ...

Mar. 1, 1989

By ASTM International

Combination of TenCate corporate capabilities offer distinct advantage with both geotechnical and geosystems expertise - Case Study

Mirafi and Geotube Technology combine for demanding, large-scale dewatering project in Brazil. Geotechnical projects come in a variety of sizes and scope — each presenting unique challenges. Many times these challenges are multi-faceted and require engineers to apply different disciplines and use a mix of products and methodologies to solve their project issues. ...

Jan. 1, 2011

By TenCate Geosynthetics Netherlands bv

Influence of Pharmaceutical Effluent on the Physico – Chemical Behavior and Geotechnical Characteristics of Clayey and Silty Soils

Single soil – column studies were carried out to understand the influence o harmaceutical effluent (industrial type) on the physico – chemical behaviour and on the index and strength properties of five soils (two commercial and three natural soils) due to artificial contamination extending to nearly 250 days period. Two modes of operation, two HRTs and two concentrations of effluents, ...

Dec. 17, 2009

By Pondicherry Engineering College

Use and application of Piezocone Penetration testing in Presumpscot Formation

Abstract: This paper examines the advantages and limitations of CPTu and SCPTu as an exploration method for geotechnical engineering of Presumpscot Formation. Discussion will include typical results of CPTu and SCPTu data for Presumpscot Formation, application and use for settlement prediction, bearing capacity analysis, slope stability evaluation, and seismic design considerations. Intent is to ...

Feb. 6, 2017

By Art’s Manufacturing and Supply, Inc. (AMS Inc.)

Pick of the programs: slide & rocsupport

The Geotechnical and Geo-environmental Software Directory (GGSD), established in February 1996 by Mott MAcDonald's Tim Spink, provides the most comprehensive listing of geotechnical/geoenvironmental software available. This directory (www.ggsd.com) is revised every two monthe. Here we summarise updated and new entries in the geotechnical category since February and Spink reviews ...

Dec. 9, 2009

By Rocscience Inc.

Surfactant–enhanced remediation of soils contaminated with petroleum hydrocarbons

An experimental programme was undertaken to reclaim the soils contaminated with petroleum hydrocarbons. Two types of locally available soils, clay with low compressibility and poorly graded sand, were chosen for the study. Both the soils were contaminated with varying percentages of used engine oil and gasoline. Anionic surfactant Sodium Dodecyl Sulphate (SDS) was used to reclaim the contaminated ...

Feb. 4, 2013

By Inderscience Publishers

Smart Monitoring Solutions for a Hassle Free Project

Geotechnical monitoring is very much responsible for the successful completion of any project. This monitoring is done with the help of the geotechnical systems. There are different companies that provide the customized solutions for the geotechnical monitoring. Such solutions include comprehensive programming like designing the systems, installation and delivering on the site, access of the data ...

May 20, 2015

By Soldata Limited

Jet Grouting in contaminated soils

Abstract The jet grouting technique has gained wider acceptance in the U.S. over the past few years as a viable tool for such geotechnical applications as the improvement of foundation soils, slope stabilization, and underpinning (Welsh and Burke, 1991). Jet grouting; however, has recently been used as a method of performing block stabilization of contaminated soils as well as for the ...

Mar. 25, 2014

By Geo-Con, Inc.

Measurement of In Situ Density of Sand in a Chamber by Using a Thermal Conductivity Penetrometer

Reliable in situ testing during soil exploration is of great help to geotechnical engineers in design considerations. This paper describes the theory and the laboratory test results for determination of the density of a sand with a quasi-static penetrometer by measuring its thermal conductivity. Effects of disturbance caused by the penetrometer have been studied. It is shown that it is possible ...

Sep. 1, 1995

By ASTM International

Geotomography in Site Investigation: Simulation Study

Tomography is the reconstruction of images from measurements of line integrals. It is used in a variety of scientific and technical applications. Advances in electronics and computers make the technique accessible to geotechnical engineering. The combination of penetration testing and tomographic reconstruction would result in a powerful site investigation tool.A tomographic software was ...

Jun. 1, 1990

By ASTM International

A New Method to Measure the Effective Porosity of Clays

The effective porosity is a required parameter for the mass flow rate calculations in groundwater hydrogeology. It is also a useful parameter in geotechnical engineering. In this paper, a methodology based on the tracer analysis technique is proposed to measure the effective porosity of clays. A test apparatus was developed and operational conditions were optimized to measure the effective ...

Dec. 1, 1992

By ASTM International

Decontamination of soil contaminated with petroleum grease

Contamination modifies the engineering properties of soil, thereby restricting its further use either as a construction material or as a supporting medium. Due to the scarcity of land, it becomes imperative to reuse the land for infrastructure developmental activities. Out of numerous soil contaminants, automobile grease is one of the most prominent. Considering the cumulative impact of ...

Dec. 15, 2009

By Inderscience Publishers

Research leads to more efficient mining projects

Over the last 10 years underground mining excavations around the world have become more reliable and efficient, thanks to a package of software programs designed intially by researchers at the faculty. Incorporating leading-edge geomechanics research findings into easty-to-use software tools for the geotechnical and mining industries. Professor John curran, Robert M. Smith Chair of Georechnical ...

Dec. 9, 2009

By Rocscience Inc.

ECSMGE CONFERENCE 2015: Managing the Clogging of Groundwater Wells

This is the poster or summary of a paper being presented at the XVI ECSMGE - European Conference on Soil Mechanics & Geotechnical Engineering - in Edinburgh from 13th to 17th September 2015. Groundwater wells are common to many civil engineering projects and their operational performance can play a crucial role. The wells may be part of a construction dewatering system, ...

Sep. 13, 2015

By Geoquip Water Solutions

Random fields in SVSlope and SVFlux

Geotechnical engineering, as a general practice, has always struggled with quantifying the significant amount of variability that can be present at any given site. There may be variability present in field sampling methods, equipment, lab testing procedures, level of training of field personnel, or many other such factors. One particular problematic aspect of slope stability analysis is the ...

Jun. 29, 2010

Interview with Ronald Ebelhar, 2015 Chairman of the ASTM Board

Ron Ebelhar has provided leadership in civil engineering projects and ASTM technical committee work since the 1970s. This year, he brings his experience to his elected position as chairman of the ASTM board of directors. You have worked on dozens of engineering projects since getting your degrees in civil engineering. What are some of the most interesting and challenging jobs you ...

Jan. 8, 2015

By ASTM International

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