WORKSHOP

MITIGATION OF DEBRIS FLOWS HAZARDS AND RISKS

July 7 to 10, 2003

 

(This workshop is a part of UWI Summer Course GL30D - Analysis and Management of Geohazards and Risks,

23 June to 18 July 2003)

 

ORGANIZED BY:

RAFI AHMAD

UNIT FOR DISASTER STUDIES, DEPARTMENT OF GEOGRAPHY AND GEOLOGY, THE UNIVERESITY OF THE WEST INDIES, MONA, KINGSTON7, JAMAICA

 

SPONSORS:

CARIBBEAN CEMENT COMPANY LIMITED (CCCL) AND

INTERNATIONAL CONSORTIUM ON LANDSLIDES (ICL)

 

WORKSHOP PRESENTERS

 Doug VanDine, PEng/PGeo, Victoria, British Columbia, Canada

With assistance from

 Rafi Ahmad, Unit for Disaster Studies, UWI, Mona, Kingston, Jamaica

 

PROGRAMME

7-8 July 2003, 9.00 am to 5.00 pm

1. Debris Flows and Related Phenomena; History of Knowledge and Research; Examples of Debris Flows (Videos and Slides); Mechanics/ Rheology.

2. Conditions Conducive To Debris Flows:  Drainage Area; Channel Profile; Source of Debris; Climatic Conditions/Source of Water; Triggering Events

3. Character of Debris Flows in Transportation and Deposition Zones.

4. Geomorphic Setting for Debris Flows in Jamaica

5. Debris Flow Recognition, and Hazard and Risk Analyses (Gully Assessment Procedure).

7. Mitigation of Debris Flow Hazards and Risks: Active and Passive Mitigation, Design Considerations for Control Structures and Road Crossings, Types of Control Structures in the Deposition Zone, Road Crossings across Debris Flow Prone Channels.

 

9 July 2003, 9.00 am to 4.30 pm

Field Trip:  To observe some debris flow sites and strategies for mitigation.  Transportation will be provided.(Note: Bring your own refreshments). 

 

10 July 2003, 9.00 am to 10.30am

SPECIAL FEATURE

PROBLEM SOLVING SESSION:

Response to questions/problems raised by concerned citizens and communities on protection and loss reduction.

NOTE: QUESTIONS MUST BE SUBMITTED BY 25JUNE 2003.

 

 

 

 

WORKSHOP COST:

 

J$ 6, 500.00 per person.

Includes refreshments on 7-8 July 2003 and field transport.

 

Make cheques payable to:

“GEOHAZARDS SUMMER COURSE, GEOGRAPHY & GEOLOGY DEPARTMENT, UWI, MONA”

 

EARLY REGISTRATION IS RECOMMENDED AS SEATS ARE LIMITED.

(Please Note: This workshop is a part of UWI Summer Course GL30D - Analysis and Management of Geohazards and Risks, 23 June to 18 July 2003).

 

 

 

 

 

FOR FURTHER INFORMATION

CONTACT:

RAFI AHMAD rahmad@uwimona.edu.jm; geoggeol@uwimona.edu.jm

Voice: 876-927-2728/2129 Fax: 876-977-6029.

 

 

DETAILED PROGRAMME

 

Date

Approx time

Topic

July 7

9:00 to 9:30

Workshop Opening

1 General Introduction to Debris Flow Workshop

1.1  Introduce Instructor

1.2  Introduce Course

9:30 to 10:30

2 Introduction to Debris Flows and their Mechanics

2.1  Definition of Debris Flows and Related Phenomena

2.2  History of Knowledge and Research

10:30 to 11:00

Refreshment Break

11:00 to 12:30

2.3  Examples of Debris Flows (Videos and Slides) (VanDine and Ahmad)

2.4  Mechanics/Rheology

14:00 to 15:30

3 Conditions Conducive To Debris Flows

3.1  Drainage Area

3.2  Creek Profile

3.3  Source of Debris

3.4 Climatic Conditions/Source of Water

3.5  Triggering Events

15.30 to 15.45

Coffee Break

15:45 to 17:00

4 Character of Debris Flows in Transportation and Deposition Zones

4.1  Character of Debris Flows in Transport Zone

4.2  Character of Debris Flows in Deposition Zone

5 Geomorphic Setting for Debris Flows in Jamaica (Ahmad)

July 8

9:00 to 10:30

6 Debris Flow Recognition, and Hazard and Risk Analyses

6.1  Debris Flow Recognition

6.2  General Landslide Hazard and Risk Analysis Terminology

10:30 to 11:00

Refreshment Break

11:00 to 12:30

6.3  Hazard and Risk Analyses (Gully Assessment Procedure)

14:00 to 15:30

7 Mitigation of Debris Flow Hazards and Risks

7.1  Active and Passive Mitigation

7.2  Design Considerations for Control Structures and Road Crossings

15.30 to 15.45

Coffee Break

15:45 to 17:00

7.3  Types of Control Structures in the Deposition Zone

7.4  Road Crossings across Debris Flow Prone Creeks

July 9

8:00 to 9:00

Practical Exercise:  Topographic map and photo interpretation of a typical debris flow including geology, geomorphology, mitigation strategies (VanDine and Ahmad)  (Obligatory for students registered for GL30D Summer Course)

9:00 to 4:30

Field Trip:  To observe some debris flow sites and strategies for mitigation. (Ahmad and VanDine) Transportation will be provided.  (Obligatory for students registered for GL30D Summer Course).

July 10

9:00 to 10:30

General Discussion:  Response to questions/problems raised by concerned citizens and communities on protection and loss reduction.