Imperial College London

DrMichaelDe Freitas

Faculty of EngineeringDepartment of Civil and Environmental Engineering

Distinguished Research Fellow
 
 
 
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Contact

 

m.defreitas

 
 
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Location

 

c/o General OfficeSkempton BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

91 results found

Boltze U, de Freitas MH, 1995, Research into the mobility of a gas phase within a porous network, Engineering Geology Special Publication, No. 9: Engineering Geology of Waste Storage and Disposal, Editors: Bentley, Publisher: Geological Society of London, Pages: 312-322

Book chapter

Butenuth C, de Freitas MH, Schetelig K, 1995, Newer observations and experiments on interactions between mineral surfaces and aqueous solutions in geological systems, Wissenschaft und Umwelt, Vol: 1, Pages: 43-52

Journal article

Azzoni A, de Freitas MH, 1995, Experimentally gained parameters, decisive for rock fall analysis, Rock Mechanics and Rock Engineering, Vol: 28, Pages: 111-124

Journal article

de Freitas MH, de Toledo P, 1995, Discussion; Laboratory testing and parameters controlling the shear strength of filled rock joints, Geotechnique, Vol: 45, Pages: 175-183

Journal article

Boltze U, de Freitas MH, 1994, Monitoring requirements for the calculation of gas emission in changing natural environments, 7th International Congress of the International association of Engineering Geology, Lisbon, Pages: 4771-4779

Conference paper

Park HD, de Freitas MH, 1994, The application of the hoop tension test to a study of the residual stored strain energy within a jointed rock mass, 7th International Congress of the International association of Engineering Geology. Lisbon, Pages: 645-650

Conference paper

de Freitas MH, 1994, Keynote Lecture: Teaching & Training in engineering geology, 7th International Congress of the International association of Engineering Geology, Pages: 57-75

Conference paper

Pereira JP, de Freitas MH, 1993, Mechanisms of shear failure in artificial fractures of sandstone and their implication for models of hydromechanical coupling, Rock Mechanics and Rock Engineering, Vol: 26, Pages: 195-214

Journal article

Butenuth C, de Freitas MH, Al-Samahiji DK, Park HD, Cosgrove JW, Schetelig Ket al., 1993, Technical Note: Observations on the measurement on tensile strength, Int.J.Rock Mech.Min.& Geomech.Abstract, Vol: 30, Pages: 157-162

Journal article

Sadagah BH, de Freitas MH, 1993, Reconnaissance studies for assessing the stability of slopes in weak rock masses in the mountains of western Saudi Arabia, Engineering Geology Special Publication No. 8: The Engineering geology of Weak Rock, Editors: Cripps, Coulthard, Culshaw, Forster, Hencher, Moon, Publisher: Geological Society of London, Pages: 347-352

Book chapter

de Freitas MH, 1993, Weak arenaceous materials, Engineering Geology Special Publication No. 8: The Engineering Geology of Weak Rock, Editors: Cripps, Coulthard, Culshaw, Forster, Hencher, Moon, Publisher: Geological Society of London, Pages: 115-123

Book chapter

de Toledo P, de Freitas MH, 1993, Laboratory testing and parameters controlling the shear strength of infilled rock joints, Geotechnique, Vol: 43

Journal article

Butenuth C, de Freitas MH, Park HD, Cosgrove JW, Schetelig K, van Lent P, Grill Pet al., 1993, Technical Note: Observations on the use of the hoop test for measuring the tensile strength of anisotropic rock, Int.J.Rock Mech.Min.& Geomech.Abstract, Vol: 31, Pages: 733-741

Journal article

Butenuth C, de Freitas MH, Kasig W, Frey MLet al., 1992, Chemically induced crack formation, an intermediate stage of rock weathering, Part I - Survey on principal surface reactions, Wissenschaft und Umwelt, Vol: 4, Pages: 261-266

Journal article

Butenuth C, de Freitas MH, Kulik A, Schetelig Ket al., 1992, Chemically induced crack formation, an intermediate stage of rock weathering, Part II - Angular dependence of velocity and reflectance of acoustic waves on crystals with anisodesmic lattice structure, Wissenschaft und Umwelt, Vol: 4, Pages: 267-276

Journal article

Valdeon L, King MS, de Freitas MH, 1992, Ultrasonic methods for quantifying the degradation of building stones, 7th International Conference on Deterioration and Conservation of Stone. Lisbon, Pages: 697-704

Conference paper

Butenuth C, de Freitas MH, 1991, Reindichte von Gesteinen. Zeitaufwand und Genauigkeit ihrer pykno-metrischen Bestimmung mit n-Heptan als Messfluessigkeit, Geophysik und Geologie, Univ.Leipzig, Vol: IV, Pages: 121-126

Journal article

Mulenga S, de Freitas MH, 1991, Groundwater flow model for Konkola underground copper mine, Zambia, International Conference of Institution of Mining and Metallurgy, Zimbabwe, Pages: 321-328

Conference paper

John SJ, Al-Samahiji DK, de Freitas MH, Cosgrove JW, Clarke BA, Loe N, Tang Het al., 1991, Stress analysis of a unidirectionally loaded hoop specimen, International Society Rock Mechanics Symposium, Aachen, Germany, Pages: 513-518

Conference paper

Butenuth C, de Freitas MH, 1991, A quantitative approach for describing rocks, Geophysik und Geologie, Univ.Leipzig, Vol: IV, Pages: 111-120

Journal article

Sadagah BH, de Freitas MH, Sen Z, 1990, A mathematical representation of jointed rock masses and its application, Mechanics of Jointed and Faulted Rock International Conference, Vienna, Publisher: A.A. Balkema, Pages: 65-70

Conference paper

Xu S, de Freitas MH, 1990, The complete shear stress-vs- shear displacement behaviour of clean and infilled rough joints, Rock Joints: International Symposium, Loen, Norway, Publisher: A.A. Balkema, Pages: 341-348

Conference paper

Sadagah BH, de Freitas MH, 1990, Special purpose engineering geology maps for cut slopes in mountains, 25th International Congress, International Association Engineering Geology, Amsterdam, Pages: 2395-2400

Conference paper

Butenuth C, de Freitas MH, Butenuth G, 1990, A systematic approach to study chemical dissolution and concomitant physical disintegration of rock for construction, 25th International Congress International Association Engineering Geology, Amsterdam, Pages: 3037-3044

Conference paper

Xu S, de Freitas MH, 1990, Kinematic mechanics of shear deformation and the validity of Barton's shear models, International Symposium, Loen, Norway, Publisher: A.A. Balkema, Pages: 767-774

Conference paper

Lee SG, de Freitas MH, 1990, Seismic refraction surveys for predicting the intensity and depth of weathering and fracturing in granitic masses, Engineering Group Special Publication No. 6: Field Testing in Engineering Geology, Editors: Bell, Culshaw, Cripps, Coffey, Publisher: Geological Society of London, Pages: 241-256

Book chapter

Lee SG, de Freitas MH, 1989, A revision of the description and classification of weathered granite and its application to granites in Korea, Quarterly Journal of Engineering Geology, Vol: 22, Pages: 31-48

Journal article

Butenuth C, de Freitas MH, 1989, Phase analysis of preferentially carbonatic rocks: a new application of thermodynamics, TIZ: Magazine for Powder, Granules and Bulk Solids Technology, Vol: 113, Pages: 194-194

Journal article

Butenuth C, de Freitas MH, 1989, Studies of the influence of water upon calcite, International Chalk Symposium, Brighton, UK, Publisher: Thomas Telford, Pages: 103-108

Conference paper

Sadagah BH, de Freitas MH, 1989, Design charts for rock-cut slopes along motorways in southern Saudi Arabia, Journal of the King Abdulaziz University (Earth Sciences), Vol: 2, Pages: 119-145

Journal article

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