Dynamic Properties of Subgrade Soils, Including Environmental Effects

Edris Jr, Earl V.; Lytton, Robert L.

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Dynamic Properties of Subgrade Soils, Including Environmental Effects

1976-05-01
By Edris Jr, Earl V. ; Lytton, Robert L.

File Language:

English

Details

Creators:

Edris Jr, Earl V. ; Lytton, Robert L.
Corporate Creators:

Texas Transportation Institute. Texas A&M University
Corporate Contributors:

Texas State Department of Highways and Public Transportation ; United States. Department of Transportation. Federal Highway Administration
Subject/TRT Terms:

Climatic Design Environmental Impacts Highway Grades Load Tests Modulus Of Resilience Railroad Grade Crossings Soils Subgrade Materials
Publication/ Report Number:

TTI-2-18-74-164-3
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States
Edition:

Interim: September, 1973 - May, 1976
Corporate Publisher:

Texas Transportation Institute. Texas A&M University
Abstract:

Three fine-grained soils, varying in clay content between 20% and 70%, were tested in a unique repet1ttve loading apparatus to determine how soil suction! temperature, and stress state affect the resilient modulus and residual strains expected under highway and railroad loadings. ln developing equations to predict these dynamic properties, three values of so11 suction, stress intensity, and temperature were used in tests of each of the three soils in a statistically designed experiment. A fundamental change in the behavior of the tested soils from "effectively saturated" to effectively unsaturated" occurs at a soil suction corresponding to two percent dry of the optimum moisture content. The critical soil suction is directly related to the clay content of the soils. This relation has important implications for the climatic design and stabilization of highway pavements and railroad grade crossings.
Format:

PDF
Funding:

2-18-74~164
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:14c77bf1f907a05406518d247a3f85765e3b05282ece8fdf1785769dc53a22154de3205cf9d348eaba7c58bfa4e545cfb43dbf1b41cf1c71f57407f9bca12041
Download URL:

https://rosap.ntl.bts.gov/view/dot/85263/dot_85263_DS1.pdf
File Type:

[PDF - 5.03 MB ]

File Language:

English

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