Geotechnical Engineering Properties of Solidified Sludge in Qizishan Landfill Site, China

2018 ◽  
pp. 255-262
Author(s):  
Weian Lin ◽  
Kaixi An ◽  
Yunmin Chen ◽  
Liangtong Zhan
Keyword(s):  
Geotechnical Engineering ◽  
Landfill Site ◽  
Engineering Properties

Nanotechnology in Geotechnical Engineering

2011 ◽  
Vol 261-263 ◽  
pp. 524-528 ◽  
Author(s):  
Marzieh Kadivar ◽  
Kazem Barkhordari ◽  
Mehdi Kadivar
Keyword(s):  
Geotechnical Engineering ◽  
Engineering Properties ◽  
Index Properties ◽  
Recent Advances ◽  
Electron Microscopes ◽  
Geotechnical Studies ◽  
Properties Of Soil

The present paper reviews the application of nanotechnology in geotechnical engineering, in which the concept of nanotechnology as well as the new concept of nanosol is explained. We have also given explanation for nanometer additives used in the introduced soil, different forms of nanoparticles, their specific properties, and effects of these nanoparticles on engineering properties of soil including index properties and strength, and analyzed the reasons through which these effects are caused. Furthermore, influence of recent advances in nanoinstruments and electron microscopes as well as their application in geotechnical studies.

Integrating Geophysical and Geotechnical Engineering Methods for Assessment of Pipeline Geohazards

2016 ◽  
Author(s):  
Alastair McClymont ◽  
Erin Ernst ◽  
Paul Bauman ◽  
Nicholas Payne
Keyword(s):  
Slope Failure ◽  
Ground Deformation ◽  
Geotechnical Engineering ◽  
Geophysical Methods ◽  
Slope Instability ◽  
Engineering Properties ◽  
First Case ◽  
Refraction Tomography ◽  
Investigation Methods

Because pipelines can cover extensive distances through diverse terrain, they are subject to various geohazards, including slope failure and earthquake damage, which can have costly environmental and monetary impacts over their designed operational lifetime. Here, we show how geophysical investigative techniques can be used to complement other geotechnical investigation methods to provide a detailed understanding of site geology to best inform geohazard assessments. We pay particular attention to how multiple geophysical methods can be used to obtain spatially continuous measurements of subsurface physical properties, and layer and structural geometries. The geophysical data can then be used to either interpolate or extrapolate geotechnical engineering properties between and away from boreholes and excavations, or optimize the locations of subsequent boreholes or excavations. To demonstrate the utility of our integrated approach of incorporating geophysical methods to geohazard assessments, two case studies are presented. The first case study shows how electrical resistivity tomography (ERT), seismic refraction tomography (SRT) and multichannel analysis of surface wave (MASW) datasets are used to constrain the thickness and extent of potentially sensitive glaciomarine clay layers that are subject to slope instability and structural failure along a proposed pipeline route near Kitimat, British Columbia (BC). A second case study describes how high-resolution ground-penetrating radar (GPR) and seismic reflection surveys are used to locate and characterize fault strands that may cause future ground deformation at a proposed pipeline crossing of the Tintina/Rocky Mountain Trench fault in northeastern BC.

Study on the Geotechnical Engineering Properties of Polluted Soil

2013 ◽  
Vol 353-356 ◽  
pp. 659-662 ◽  
Author(s):  
Zhen Ying Zhang ◽  
Da Zhi Wu ◽  
Li Jun Yan
Keyword(s):  
Shear Strength ◽  
Soil Mechanics ◽  
Geotechnical Engineering ◽  
Friction Angle ◽  
Normal Pressure ◽  
Polluted Soil ◽  
Engineering Properties ◽  
Copper Ore ◽  
Cohesion Force ◽  
Natural Density

To investigate the geotechnical engineering properties of polluted soil, ten soil samples are collected from Anqing copper ore, Anhui Province, China. The geotechnical engineering parameters of the polluted soil are measured in the soil mechanics laboratory. Tests results show that the natural density varies from 1.56 to 2.04t/m3, the moisture content varies from 15.36% to 27.87%, the modulus of the compression varies from 1.27 to 8.10MPa, the cohesion force varies from 32 to 210kPa, and the internal friction angle varies from 25.4 to 57.9 degree. Finally, the properties of the shear strength and the compression are studied, and find that the compressibility of the polluted soil is very big, and the relationship between shear strength and the normal pressure conforms to the law of Coulomb.

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