Auteur R. W. I. Brachman
Documents disponibles écrits par cet auteur (7)
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Article : texte imprimé
R. Kerry Rowe, Auteur ; M. Z. Islam, Auteur ; R. W. I. Brachman, Auteur |Accelerated aging tests to evaluate the depletion of antioxidants from a high density polyethylene geomembrane are described. The effects of temperature, high pressure, and continuous leachate circulation on the aging of geomembranes in composit[...]
Article : texte imprimé
J. A. Cholewa, Auteur ; R. W. I. Brachman, Auteur ; I. D. Moore, Auteur |Pipe bursting is a construction technique that involves the replacement of an existing buried pipe with potentially much less surface disturbance than traditional cut and cover construction. However, excessive ground movements associated with pi[...]
Article : texte imprimé
M. J. Chappel, Auteur ; R. W. I. Brachman, Auteur ; W. A. Take, Auteur |Wrinkles are buckles or waves that develop from restrained thermal expansion when the geomembrane is left exposed to solar heating. Wrinkles can substantially reduce the effectiveness of the geomembrane as a hydraulic barrier if a hole is at or [...]
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R. P. Krushelnitzky, Auteur ; R. W. I. Brachman, Auteur |The physical response of 100 mm diameter high-density polyethylene, plane-wall pipes is examined when subjected to vertical pressures as large as 3000 kPa. These pressures greatly exceed typical pressures for conventional sewer and culvert appli[...]
Article : texte imprimé
J. A. Cholewa, Auteur ; R. W. I. Brachman, Auteur ; I. D. Moore, Auteur |An existing deteriorated or hydraulically undersized pipe can be replaced with a new pipe by static pipe bursting. Cavity expansion during pipe bursting induces ground movements, which may potentially damage nearby buried utilities if they are i[...]
Article : texte imprimé
W. A. Take, Auteur ; E. Watson, Auteur ; R. W. I. Brachman, Auteur |Geomembranes (GMBs) are widely used as advective barriers in landfill liner systems. When exposed to the sun, GMBs exhibit a network of wrinkles as a result of thermal expansion. These wrinkles disrupt the intimate contact between the GMB and th[...]
Article : texte imprimé
S. Dickinson, Auteur ; R. W. I. Brachman, Auteur ; R. Kerry Rowe, Auteur |Experimental results from physical testing are reported to examine the thickness and hydraulic performance of three geosynthetic clay liners (GCLs) overlying a geonet when subjected to vertical stresses (e.g., as may be found in a secondary leac[...]
