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Title:

SIMPLIFIED METHODS FOR EVALUATING ROAD PRISM STABILITY

Accession Number:

00942523

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States
Order URL: http://www.trb.org/Main/Public/Blurbs/152846.aspx

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Order URL: http://worldcat.org/isbn/0309077486

Abstract:

Mass failure is one of the most common failures of low-volume roads in mountainous terrain. Current methods for evaluating stability of these roads require a geotechnical specialist. A stability analysis program, XSTABL, was used to estimate the stability of 3,696 combinations of road geometry, soil, and groundwater conditions. A sensitivity analysis was carried out to find the most important site-specific variables in estimating slope stability, and two regression equations were developed to predict the factor of safety (FS) for a given road, one with the groundwater below the road fill and one with the groundwater in the road fill. The resulting equations predicted failures on road segments where failures were observed to have occurred. A comparison of the predicted FSs from the regression equations with the FS values predicted by the infinite slope equation showed that both methods predicted similar FSs.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1819, Volume 2, Eighth International Conference on Low-Volume Roads 2003.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Elliot, W
Ballerini, M
HALL, D

Pagination:

p. 95-100

Publication Date:

2003

Serial:

Transportation Research Record

Issue Number: 1819
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

Eighth International Conference on Low-Volume Roads

Location: Reno, Nevada
Date: 2003-6-22 to 2003-6-25
Sponsors: Federal Highway Administration; US Forest Service; U.S. Army Corps of Engineers; US Bureau of Indian Affairs; University of Nevada, Reno; Costa Rica University; Nevada Department of Transportation; and Transportation Research Board.

ISBN:

0309077486

Features:

Figures (4) ; References (15) ; Tables (8)

Uncontrolled Terms:

Mass failure

Subject Areas:

Data and Information Technology; Geotechnology; Highways; Safety and Human Factors; I42: Soil Mechanics

Files:

TRIS, TRB, ATRI

Created Date:

May 13 2003 12:00AM