Section 3: Debris flow initiation potential in gullies

12/10/01


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Table of Contents

Section 3: Debris flow initiation potential in gullies

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Debris flow initiation in gullies

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Debris flow initiation study: objectives

Study areas

Data collection - site selection

Data collection - predictor variables

Data collection - predictor variables conít

Response

Analytical methods

Results

Headwalls vs. Sidewalls

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Median angle of entry

Volume of debris into channel

Minimum failure sizes for ChDF

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What about the GAP criteria?

GWSA and surficial material

GWSA and surficial material

Gully wall failure potential

Channel gradient (SW only)

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Does the 1995 DFIP method work?

GAP 2001: GWFP

GAP 2001: GGPDFI

Author: Tom Millard, M.Sc., P.Geo.

Email: Tom.Millard@gems8.gov.bc.ca

Home Page: https://www.for.gov.bc.ca/rco/research/vanpublicat.htm

Other information:
Presentation at the Coastal Forest Site Rehabilitation Conference, Nanaimo, Nov. 2001.

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