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Page 1: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Landslide Mitigation

• avoid building or living on steep slopes or at the base of steep slopes

• avoid places where landslides have occurred in the past

Page 2: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

• show areas where debris flows and floods have deposited material; these are obviously dangerous places

Page 3: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

note the to the right of this photo;these are ‘earth flows’ that are gradually moving to the leftencroaching on the highway

Page 4: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Quito, Ecuador: which part of the city appears to bemost at risk from mass wasting?

Page 5: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

House built over creek in Gatlinburg, TN

Page 6: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Slope stabilization techniquesSlope stabilization techniques

Page 7: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Monteagle mountain (I-24), TN

Page 8: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past
Page 9: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past
Page 10: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past
Page 11: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past
Page 12: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Snow avalanche mitigation:

Page 13: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past
Page 14: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

• mitigation for mass wasting tends to have

e.g., it is estimated that damage from mass wasting in California over the next 10 yr will cost $10 billion

• mitigation structures that will reduce damages by 90% can be built for $1 billion, then:

Page 15: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

• for protection from all other types of “earth movements” additional coverage must be purchased from insurance co.

• some victims of mass wasting are eligible for federal assistance and others resort to litigation

Page 16: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Aberfan, Wales, UK

• 144 persons died (116 children)

Page 17: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Los Angeles, California experiences frequent debris flows, some of whichare killers:

Causes of debris flows near Los Angeles:

Page 18: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

3. Frequent wildfires further

denude slopes of vegetation.

Page 19: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Debris flow scarsA ‘thousand cannons’ aimed at Los Angeles

Page 20: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past
Page 21: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

2. Debris retention basins

• Used to capture debris flows and protect downstream areasmust be cleaned out periodically.

Page 22: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

3. Debris flow hazard mapping

Home protection from debris flows

Page 23: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past
Page 24: Landslide Mitigation avoid building or living on steep slopes or at the base of steep slopes avoid places where landslides have occurred in the past

Harvester and Forwarder on Steep Slopes - The European ...Harvester and Forwarder on Steep Slopes - The European Perspective Prof. Dr. Karl Stampfer Institute of Forest Engineering,

Yamal-Land-Cover Land-Use Change (NASA LCLUC) WorkshopGentle slopes (steepness 1-3°) old Cryogenic landslides 1989 Gentle slopes (steepness 3-7°) drained boggy Steep slopes (steepness

Steep Slopes - Lehigh Valley Planning Commissionlvpc.org/pdf/SteepSlopes.pdf · 2 Steep Slopes LEHIGH VALLEY PLANNING COMMISSION Terry J. Lee, Chair Steven L. Glickman, Vice Chair

RAWS-H Remote Automated Weather Stations.campbellsci.com/documents/eu/manuals/raws-h.pdf · Situations to avoid include: 1) large industrial heat sources, 2) rooftops, 3) steep slopes,

Soil Erosion & Sediment Control Plans · Soil Erosion & Sediment Control Plans ... avoid disturbance of steep slopes, wetlands, and other environmentally sensitive areas. 2. Determine

B~ · Coconut and banana plantations on steep lands between Fagaitua ... Excessive soil disturbance or cultivation on steep slopes would pose a threat to watershed values, but the

Landforms and soils of Black Mountain · Black Mountain comprises two main landforms, the ridges and steep-sided slopes of the Umbarra soil-landscape unit, and the gentler fan slopes

Strata Soil Reinforcement Solutions for Slopes and Walls ...€¦ · include retaining walls, reinforced steep slopes, temporary walls and embankments. Strata Systems, Inc. is a manufacturer

TM MAP + MST...is loaded or stored when hot or in high humidity conditions. Avoid forming steep slopes when removing product. If product has caked, cliffed, or has adhered to the storage

Slope Steep slopes often have little or no soil on them because of gravity. Runoff from precipitation tends to erode the slope also. Moderate slopes and

Instrumentation of Steel Sheet Pile Wall and Steep … · Instrumentation of Steel Sheet Pile Wall and Steep Cut Slopes in Piedmont Residual Soils for Research Michael Valiquette

Landslides and Related Mass Wasting Features in the Yakima ... · Canyon mass wasting. Mass wasting is evident in all forms on our drive through the steep-walled canyon. Steep slopes,

Modulation of erosion on steep granitic slopes by …seismo.berkeley.edu/~kirchner/reprints/2001_46_boulder...Modulation of erosion on steep granitic slopes by boulder armoring, as

6. THE AVERAGE SEISMIC COEFFICIENT FOR STEEP SLOPES - … · 6. THE "AVERAGE SEISMIC COEFFICIENT" FOR STEEP SLOPES The frequency domain analysis of the effect of topography on ground

Steep Slopes - Lehigh Valley Planning Commission2 Steep Slopes LEHIGH VALLEY PLANNING COMMISSION Terry J. Lee, Chair Steven L. Glickman, Vice Chair Ron Angle Norman E. Blatt, Jr.,

BUILDING STRUCTURES ON OR NEAR STEEP SLOPESstaffsites.slcschools.org/rdahl/data/_uploaded/8th/Whats...Problems with Building Structure on or Near Steep Slopes The first and probably

Interaction of Strength and Stress in High, Steep Rock Slopes

Retaining Walls and Chapter 730 Steep Reinforced Slopes · Retaining Walls and Chapter 730 Steep Reinforced Slopes ... Semigravity walls rely more on structural resistance through

Image Resource: ...ratt.ced.berkeley.edu/PastProjects/c188/2017... · Toxic Sites 500 ft buffer -3 Steep Slopes Slopes > 8.5 degrees-2 Landslides 100 ft buffer -1 ... We then used

Smooth slopes: dikes up to vertical walls - un-ihe.org · Smooth slopes: dikes up to vertical walls New formulae including zero freeboard and very steep slopes Chapter 5 in EurOtop

HUESKER Two geogrid-reinforced steep slopes as …...HUESKER Two geogrid-reinforced steep slopes as combined structures on columns and piles: Case histories D. Alexiew, H. Hangen,

How Steep Is Too Steep? - Smith Gardner, Inc.€¦ · Example 1 - 20 Acre Landfill With 3.5:1 benched slopes, 80 ft high: 1,470,000 CY With 3:1 slopes, 100 ft high: 1,740,000 CY Airspace

THE LINING OF STEEP LANDFILL SLOPES IN SOUTH AFRICA - 20

IMPORTANCE OF AGE COMPOSITION (BAMBOO CULMS) IN A … for... · bamboo clumps in steep slopes to avoid soil erosion. Fertilization: With the extraction of bamboo poles for value addition,

Ancey,Rentschler)an Exact Solution for Ideal Dam-Break Floods on Steep Slopes

DP2 - Surrey Lands_BK3_18787.pdf · DP2 HAZARD LANDS BL 18423 BL 18787 A. Definitions Steep Slopes Flood Prone B. Development Restrictions Steep Slopes Flood Prone

AS 21 4T B&S · 1. Only mow steep slopes when safe opera-tion assured. 2. Do not mow excessively steep slopes. 3. When mowing steep slopes, meet the appropriate safety measures, e.g

REINFORCED SOIL SLOPES AND EMBANKMENTS · PDF fileREINFORCED SOIL SLOPES AND EMBANKMENTS Design Manual and Installation Guideline For: • Reinforced Steep Slopes • Surficial Stability

VOLCANOES. TYPES OF VOLCANOES Volcanoes are classified by appearance Steep slopes = Strato/composite Volcanoes Gentle slopes = Shield volcano Appearance

Culture The Steep-slope Enjoyment - durbacher.de · –The Steep-slope specialists Durbach’s topography means that wine is grown almost exclusively on steep- slopes with gradients

STRUCTURE OF THE HEADWATER VALLEY SEGMENT IN THE … · action and slope wash. Soil creep is common on steep slopes in the subalpine zone. The slopes are dissected by unchanneled

BEAR VALLEY MITIGATION BANK PROSPECTUS KETCHIKAN … · from gently rolling slopes to very steeply sided slopes (estimated at 45 percent). Steep slopes exist primarily along the site’s

Water Runs Downhill: Managing Runoff on Steep Slopes

Ski jumping is a sport which use steep slopes from the mid-nineteenth century

EFFECT OF INLET DESIGN ON CAPACITY OF CULVERTS ON STEEP SLOPES