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Tuesday, August 31, 2021 | History

3 edition of Slope stability on forest land found in the catalog.

Slope stability on forest land

Roy C. Sidle

Slope stability on forest land

  • 43 Want to read
  • 29 Currently reading

Published by Oregon State University Extension Service, Washington State University Cooperative Extension Service in [Corvallis, Or.?], Pullman, Wash .
Written in

    Subjects:
  • Slopes (Soil mechanics),
  • Forest soils

  • Edition Notes

    StatementRoy C. Sidle.
    SeriesPNW -- 209., PNW (Series) -- 209.
    The Physical Object
    Pagination23 p. :
    Number of Pages23
    ID Numbers
    Open LibraryOL17613331M
    OCLC/WorldCa9007183

      The book describes and quantifies the ef- Roy C. Sidle received Problems in applying these semi-quantitative fects of natural factors and land use on slope his Ph.D. in soil science stability analyses to natural slopes are dis- stability.


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Slope stability on forest land by Roy C. Sidle Download PDF EPUB FB2

Are you sure you want to send a request to delete this work. Your request will be reviewed and you will receive an email when it's by: Forest Service Engineering Staff Washington, DC Slope Stability Reference Guide for National Forests in the United States Volume I11 August While reasonable efforts have been made to assure the accuracy of this publication, in no event will the.

Slope stability studies in the USDA Forest Service have been conducted successfully in accordance with a three-level concept. Level I, the most general, is conducted for watershed analyses, ecosystem management support, and timber sale area planning.

Level I slope stability studies. Forest Land Uses and Stream Environment. Reports new findings, offers a re-analysis of older studies, and summarizes pertinent results in the literature. Past land use, forest fires, road building, poor Logging and conversion of steep lands to grass have increased sediment discharge by factors ranging from to more than 4.

Abstract: The Slope Stability Reference Guide for National Forests in the United States, 1, pages in three volumes, covers stability of both soil and rock slopes. It was written by 23 authors, who are present or former Forest Service engineering geologists, geotechnical engineers and geomorphologists, as an attempt to capture the technical.

The Effects of Forest Land Use on Erosion and Slope Stability Report of a Seminar by Colin L. O'Loughlin East-West Center May Based on paper presentes and d discussed at a seminar held at the East-Wes Honolulut Center 7,- 11 May Organized and cosponsored by the Environmen Polic Institutey t and, East-West Center.

FHWA NHI 6 Slope Stability Soils and Foundations Volume I 6 - 3 December EFFECTS OF WATER ON SLOPE STABILITY Very soft, saturated foundation soils or ground water generally play a prominent role in geotechnical failures in general.

They are certainly major factors in cut slope stability and in. SLOPE STABILITY 1. Purpose. This engineer manual (EM) provides guidance for analyzing the static stability of slopes of earth and rock-fill dams, slopes of other types of embankments, excavated slopes, and natural slopes in soil and soft rock.

Methods for analysis of slope stability are described and are illustrated by examples in the appendixes. various landslide types in Washington State (Part 2), how slope form affects slope stability (Part 3), and how to recognize potentially unstable slopes and landforms (Part 4).

Parts 5, 6, and 7 contain procedures and resources for conducting reviews and assessments of potentially unstable areas in relation to proposed forest practices. Methodology of Slope Stability Analysis It is a method to expresses the relationship between resisting forces and driving forces Driving forces forces which move earth materials ope component of weight of material including vegetation, fill material, or.

Slope stability Causes of instability Mechanics of slopes Analysis of translational slip Analysis of rotational slip Site investigation Remedial measures Soil or rock masses with sloping surfaces, either natural or constructed, are subject to forces associated with gravity and seepage which cause instability.

Understanding slope stability is an important part of land management and planning timber harvest activities. From forest road planning and harvest unit layout to choosing a harvest system, the land manager must evaluate each project for the potential impact to potentially unstable slopes.

Understanding Slope Stability Outside edge of a meander. Theory of Slope Stability. In the lecture part of this course we will discuss a variety of methods of analysis of slope stability and instability. It is essential that the engineering geologist be intimately familiar with all of these methods because they provide ways of.

The effects of forest land use on erosion and slope stability by Colin L. O'Loughlin,East-West Center edition, in English. Using Slope. When writing field notes about a site, technicians include information about the slope of the land.

Sometimes a rough estimate of the average slope is sufficient; sometimes detailed measurements of slope are required. For example, a site description might read: A timber cruise was conducted on 20 acres of mixed conifer forest.

Buy The effects of forest land use on erosion and slope stability: Report of a seminar on FREE SHIPPING on qualified orders The effects of forest land use on erosion and slope stability: Report of a seminar: O'Loughlin, Colin L: : Books. Tsukamoto, Y.and Kasakobe, O.Vegetation influences on debris slide occurences on steep slopes in Japan.

In Symposium on the Effect of Forest Land Use on Erosion and Slope Stability, Honolulu, Hawai, pp. 63 Google Scholar. Mao Z, Bourrier F, Stokes A, Fourcaud T () Three-dimensional modelling of slope stability in heterogeneous montane forest ecosystems.

Ecol Model 22 CrossRef Google Scholar Markart G, Perzl F, Kohl B, et al. () 22nd and 23rd august analysis of flooding events and mass movements in selected communities of Vorarlberg.

Fig. Culmann Aproach to Slope Stability CULMANN METHOD A technique for the calculation of slope stability based upon the assumption of a plane surface of failure through the toe of the slope has been proposed by Culmann (see Taylor, ).

In Fig. the line QS represents a plane potential failure surface. The forces acting on the. forest sites. to investigatethe feasibilityof rehabilitating stream and forest sites damaged by landslides.

to assess alternative silvicultural treatments for maintaining and improving slope stability. to investigate the feasibility and success of using alternative logging methods, including.

Previous studies have shown that the mechanical effects of vegetation roots on slope stability can be classified as additional cohesion effects and anchorage effects. The present study investigated the combined mechanical effects (additional cohesion effects and anchorage effects) of vegetation on a slope with coarse-grained soil in the mountainous region (significantly prone to slope failure.

Geotechncial Investigations and Slope Stability Analysis of a Landslide Dr. Chitra Dr. Manish Gupta Central Soil and Materials Research Station New Delhi, India Abstract- Konkan Railway is passing through the most difficult terrain of foot of Sahyadri hills and along the coast of Arabian sea.

This book also includes portions of 18 AAC 90 adopted by the Department of Environmental Conservation regarding pesticide control, that are Slope stability standards in a riparian area 22 Article 3.

Road construction 11 AAC 95 operation on state land, other public land, or private forest land if all of the following criteria are met: (1. This book is an up-to-date review of research and practice on the use of vegetation for slope stabilization and control of surface erosion caused by water and wind.

From a basic understanding of the principles and practices of vegetation growth and establishment, it describes how vegetation can be treated as an engineering material and used to solve erosion and slope stability problems. of Forest Land Use on Erosion and Slope Stability, May, Honolulu, Hawaii.

2 Gordon Grant, Cooperative Researcher, Pacific Northest Forest and Range Experiment Station, Forest Service, U. Department of Agriculture, Corvallis, OR, and Department of. the forest!!.

C O NTAC T: Tim Farris - USFS Trail Supervisor Office phone: () into the hillside and will help the stability of the wall. 6) Inslope your wallbatter- While building, be existing slope of the land.

Use a grubbing tool to dig into. DRAFT 114 Protection roles of forest and non-forest woody species on slopes in Iran. 73 Ghassem Habibi Bibalani, Baris Majnonian, Ebrahim Adeli, and Homauon Sanii Reinforcement of tree roots in slope stability: A case study from the Ozawa slope in Iwate Prefecture, Japan 81 H.

article{osti_, title {Hillslope stability and land use (). Volume II}, author {Sidle, R C and Pearce, A J and O'Loughlin, C L}, abstractNote {This book emphasizes the natural factors affecting slope stability, including soils and geomorphic, hydrologic, vegetative, and seismic factors and provides information on landslide classification, global damage, and analytical methods.

Get this from a library. The effects of forest land use on erosion and slope stability: report of a seminar. [Colin L O'Loughlin; East-West Environment and Policy Institute (Honolulu, Hawaii)]. I think Soil Strength and Slope Stability l Duncan and Stephen G.

Wright is best book to understand Slope Stability problems. Cite. All Answers (6) 12th May, Nahesson Panjaitan. Lecture Slope Stability. Key Questions. How do friction and cohesion work together to stabilize slopes. What is trying to pull slope material down.

How does the slope angle play a role in slope stability. What is the factor of safety equation. -Discuss slope stability circular and block analyses-Compute safety factor by chart solution. Stability Problems Embankment Fill Firm Soil gShallow translational failure (Infinite Slope) gCircular Failure.

Stability Problems gSliding block failure gLateral squeeze-Lesson 7. This book was released on 25 August with total page pages. Available in PDF, EPUB and Kindle.

Book excerpt: Download or read Slope Stability in Road Construction full HQ book in pdf, epub and kindle. This book written by Edward R. Burroughs and published by.

Get book and read anywhere and anytime you want. Eco- and Ground Bio-Engineering: The Use of Vegetation to Improve Slope Stability. : A. Stokes, Ioannis Spanos, Joanne E. Norris, Erik Cammeraat. Springer Science Business Media, - Nature - pages. 1 Review. In an era where climate change, natural catastrophes and land degradation are major issues, the conservation of soil and 45(1).

3 EFFECTS OF VEGETATION REMOVAL ON SLOPE HYDROLOGY AND STABILITY Title: Effects of deforestation on slopes Author: Brown, C. and Sheu, M. SeriesSource: Journal Geotechnical Engineering Division (ASCE), (2) Peer-reviewed: Yes Code: RTSTAB, BDWFAL, SLSTAB(VR) AbstractIntroduction: The creep and stability of slopes before and after logging were.

The slope face has to be protected by retaining wall supported by buttresses and 4. The slope between the retaining walls has to be terraced. Fig. 7: Rock-waste along the slope over a vast area. The trees on the left top corner look hanging when the soil cover eroded Also, the slope on the other side of the road has developed cracks.

Proper road and drainage design, and effective slope stabilization can reduce erosion potential during road construction on forest areas. Detailed planning of the timber-harvesting operation can minimize runoff and soil loss.

Compaction of the soil surface occurs when logs are moved across the land surface by tractors or skidders. Proceedings, Symposium on Effects of Forest Land Uses on Erosion and Slope Stability, Honolulu, HI, May Underwater Construction of an Impervious Dam Core, (with R.

Phelps and A. Tigoulet), Proceedings, Twenty Fourth Annual Symposium on Engineering Geology and Soils Engineering, Coeur dAlene, ID, March FOREST SLOPE STABILITY PILOT PROJECT UPPER DESCHUTES RIVER, WASHINGTON for Department of Ecology ' by Gerald W.

Thorsen Kurt L. Othberg Open File Report Department of Natural Resources Division of Geology and Earth Resources Olympia, WA   C. OâLoughlin, Effectiveness of introduced forest vegetation for protecting against landslides and erosion in New Zealandâs steeplands.

Proc. Symposium on effects of forest land use on erosion and slope stability, Honolulu, Hawaii, [9] H. Faisal and O. Normaniza, Shear strength of soil containing vegetation roots.

In this study, some methods of soil bioengineering presented in water management such as Live Pole Drains, Live Silt Fences, Brush Layering, Live Fascine, Live Stake and etc. and Steep slope. The increase in the stability of the slope due to vegetation can be seen virtually in the differences between angles of the slopes on which the landslides took place, in the forest area and open land.

Higher angles were observed for landslides on the forested slopes for all locations.The mass of vegetation is only likely to have a major influence on slope stability when larger trees (dbh* of > m) are present.

The loading due to a well stocked forest of 30 to 50 m tree height is in the order of to 2 kN/m2 (Coppin,9). A 30 m high tree having a dbh of approximately m is likely to have a weight of kN. Such trees.