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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Some considerations of in-situ frost heaving.

Janiga, Paul Vincent January 1970 (has links)
No description available.
2

Some considerations of in-situ frost heaving.

Janiga, Paul Vincent January 1970 (has links)
No description available.
3

Evaluation and application of ice segregation parameters for frost heave prediction

Ito, Yuzuru, 1958- 29 June 1993 (has links)
The success of civil engineering construction in cold regions often depends on the assessment of the potential for frost heave. Over the past two decades two models have been presented to the engineering community to identify the frost heave potential, namely: (1) the segregation potential (SP), and (2) the discrete ice lens (DIL) models. These models are based on ice segregation parameters which can be obtained from simple laboratory freezing tests. However, the reliability of the ice segregation parameters obtained from the laboratory freezing tests is still in question. In recognition of the need to improve the reliability of the measurement of ice segregation parameters in a frost heave test, a study was conducted to: (1) investigate several improvements in the step freezing test used to measure ice segregation parameters, (2) examine several approximations used to interpret the laboratory step freezing test results, (3) demonstrate the compatibility of the SP and DIL parameters, (4) propose a method to obtain reliable ice segregation parameters, and (5) demonstrate the applicability of the DIL model to address field frost heave problems. The results of the study indicated: (1) the accuracy of measured ice segregation parameters may be improved if step freezing tests are conducted under shallower temperature gradients and the water intake velocity is accurately and continuously monitored, (2) inappropriate approximations may produce a significant error in the measurement of ice segregation parameters, (3) SP may be defined either by the ratios of the (i) heave velocity/1.09 to the overall temperature gradient of the frozen soil, or (ii) water intake velocity to the temperature gradient of the frozen fringe, (4) the SP and DIL ice segregation parameters are compatible, and (5) the reliability of both models is improved through the demonstration of the compatibility of the ice segregation parameters. The application of the frost heave prediction models was studied based on ice segregation parameters determined with the improved laboratory procedure. A practical method to predict the influence of the groundwater level using the DIL ice segregation parameters was proposed. A probabilistic approach for the DIL frost heave model was developed. / Graduation date: 1994
4

The use of geosynthetics to mitigate frost heave in soils /

Henry, Karen S. January 1998 (has links)
Thesis (Ph. D.)--University of Washington, 1998. / Vita. Includes bibliographical references (p. [149]-156).
5

Design and construction of pavements in cold regions : state of the practice /

Smith, Brad Steven, January 2006 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Civil and Environmental Engineering, 2006. / Includes bibliographical references (p. 73-81).
6

Experimental investigation of the thermal effects of frost susceptible soils

Newell, Zachary Allen. January 2005 (has links) (PDF)
Thesis (M.S.)--Montana State University--Bozeman, 2005. / Typescript. Chairperson, Graduate Committee: Robert Mokwa. Includes bibliographical references (leaves 111-112).
7

Development of a frost heave test apparatus /

Lay, Russell David, January 2005 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Civil and Environmental Engineering, 2005. / Includes bibliographical references (p. 71-75).
8

Frost heave and thaw settlement in tundra environments applications of differential global positioning system technology /

Little, Jonathon. January 2006 (has links)
Thesis (M.S.) University of Delaware, 2006. / Principal faculty advisor: Frederick E. Nelson, Dept. of Geography. Includes bibliographical references.
9

AN INVESTIGATION INTO THE CAUSES AND PREVENTION OF FROST HEAVING OF FOREST TREE SEEDLINGS

Heidmann, L. J. January 1974 (has links)
No description available.
10

Ice lens formation and frost heave from a thermodynamic rheologic perspective.

Smith, Sharon Lee, Carleton University. Dissertation. Geology. January 1992 (has links)
Thesis (Ph. D.)--Carleton University, 1992. / Also available in electronic format on the Internet.

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