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Thursday, November 19, 2020 | History

2 edition of Steady movement of landslides in fine-grained soils found in the catalog.

Steady movement of landslides in fine-grained soils

Rex L. Baum

Steady movement of landslides in fine-grained soils

a model for sliding over an irregular slip surface

by Rex L. Baum

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Published by U.S. G.P.O., For sale by USGS Map Distribution in [Washington, D.C.], Denver, CO .
Written in English

    Places:
  • Utah.
    • Subjects:
    • Landslides -- Utah.

    • Edition Notes

      Includes bibliographical references (p. 26-28).

      Statementby Rex L. Baum and Arvid M. Johnson.
      SeriesLandslide processes in Utah--observation and theory ;, ch. D, U.S. Geological Survey bulletin ;, 1842, U.S. Geological Survey bulletin ;, 1842-D.
      ContributionsJohnson, Arvid M.
      Classifications
      LC ClassificationsQE75 .B9 no. 1842-D, QE599.U5 .B9 no. 1842-D
      The Physical Object
      Paginationiv, 28 p. :
      Number of Pages28
      ID Numbers
      Open LibraryOL1716949M
      LC Control Number92019448

      The First Southern African Geotechnical Conference was organised by the Geotechnical Division of the South African Institution of Civil Engineering (SAICE) under the auspices of the International Society of Soil Mechanics and Geotechnical Engineering (ISSMGE) and took place at Sun City, South Africa on 5 and 6 May


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Steady movement of landslides in fine-grained soils by Rex L. Baum Download PDF EPUB FB2

Library of Congress Cataloging-in-Publication Data Baum, Rex L. Steady movement of landslides in fine-grained soils: a model for sliding over an irregular slip surface / by Rex L. Baum and Arvid M.

Johnson, by: Steady movement of landslides in fine-grained soils; a model for sliding over an irregular slip surface Bulletin D By: Rex L.

Baum and Arvid M. Johnson. Get this from a library. Steady movement of landslides in fine-grained soils: a model for sliding over an irregular slip surface. [Rex L Baum; Arvid M Johnson; Geological Survey (U.S.)] -- Analysis of a possible mechanism for sliding of landslides on irregular slip surfaces shows how surface roughness can retard movement of landslides Steady movement of landslides in fine-grained soils book fine-grained soils.

Steady movement of landslides in fine-grained soils: a model for sliding over an irregular slip surface / By Rex L. Baum, Arvid M. Johnson and Geological Survey (U.S.) Abstract. Shipping list no.: es bibliographical references (pages ).Mode of access: Internet.

Written by seventy-five world-leading researchers and practitioners, this book provides a state-of-the-art summary of landslide science.

It features both field geology and engineering approaches, as well as modeling of slope failure and run-out using a variety of numerical codes. Abstract. Landslides in fine-grained permafrost soils have been paid much less attention compared to those in temperate regions.

The lack of attention paid to those landslides can be attributed to their remote locations and relatively lower social and economic impacts. The Silt Creek Landslide is a ‐km long by ‐ to ‐m wide composite landslide, where different movement types have occurred in different areas of the displaced mass (Cruden & Varnes, ), located in the forested western Cascade Mountains, Oregon (Figure 1).

steady, downward movement of slope-form-ing soil or rock. Movement is caused by shear stress sufficient to produce permanent deformation, but too small to produce shear failure. There are generally three types of creep: (1) seasonal, where movement is within the depth of soil affected by seasonal changes in soil moisture and soil temperature.

This book is open access under a CC BY license. This volume contains peer-reviewed papers from the Fourth World Landslide Forum organized by the International Consortium on Landslides (ICL), the Global Promotion Committee of the International Programme on Landslides (IPL), University of Ljubljana (UL) and Geological Survey of Slovenia.

Google Scholar Baum RL, Johnson AM () Steady movement of landslides in fine-grained soils—a model for sliding over an irregular slip surface. U.S. Geological Survey Bulletin D Baum RL, Reid MR () Ground water isolation by low-permeability clays in landslide shear zones.

Evaluation of Figure 1 indicates that pore‐water pressures at the time of landslide reactivation were higher when soil swelling (as suggested by vertical deformation) was higher and vice versa; average head above the landslide base and vertical deformation at the time of the three reactivations were and cm, and cm, and Steady movement of landslides in fine-grained soils: a model for sliding over an irregular Steady movement of landslides in fine-grained soils book surface (No.

US Government Printing Office Bolton MD () The strength and dilatancy of sands. Soil creep is the very slow (inches/year), steady, downward movement of soil or rock.

Creep is indicated by curved tree trunks, bent fences or retaining walls, tilted poles or fences, and small soil ripples or ridges. SLIDES Slides are the downslope movements of soil or rock along a surface and can be deep-seated or shallow. (2) Lateral discharge q at each point is in equilibrium with a steady state recharge R [m/h]; (3) The capacity for lateral flux at each point is Tsinθ, where T is the soil transmissivity [m 2 /h], i.e.

hydraulic conductivity [m/h] times soil thickness, h [m]. Assumptions 1 and 2 together imply that lateral discharge (depth integrated per unit contour length), is q = Ra [m 2 /h]. landslide may move upward while other parts move downward.

The lower limit of the rate of movement of landslide ma-terial is restricted in this book by the economic aspect to that actual or po-tential rate of movement which provokes correction or maintenance.

Normal sur-ficial creep is excluded. Also, most types of movement due to freezing and. The study area covered around 50 km 2 on a Standard Topographic Map (STM) with 1/25, scale, in the Giresun Ga3 part of the map, and in Kanlica Village in Giresun province which is between 38°39′54ʺ and 38°42′04ʺ latitudes, 40°54′17ʺ and on 40°45′39ʺ longitudes.

The study area is located at an altitude of m on the southeast flank of Giresun City in North East Turkey (). The term “landslide” describes a wide variety of processes that result in the downward and outward movement of slope-forming materials including rock, soil, artificial fill, or a combination of these.

The materials may move by falling, toppling, sliding, spreading, or flowing. Annual book of ASTM standards, Steady movement of landslides in fine-grained soils; A model for sliding over an irregular slip surface steady landslide motion to occur while rain.

Driven piles installed in soft soils - MB A case history of static loading test on pile subjected to vertical and lateral soil movement Prediction, testing, and analysis of a 50m long pile in soft marine clay - MB A case history and results of international prediction survey Deep compaction of - MB.

Study and information about LANDSLIDES. Landslides are rock, earth, or debris flows on slopes due to gravity. They can occur on any terrain given the right conditions of soil, moisture, and the angle of slope. Integral to the natural process of the earth's surface geology, landslides serve to redistribute soil and sediments in a process that can be in abrupt collapses or in slow gradual slides.

Landslide Landslide is a general term used to describe a variety of geologic processes involving the movement of fine-grained earth, coarse-grained debris, or rock down a slope under the influence of. Slides.

Figure 3. These schematics illustrate the major types of landslide movement. Although many types of mass movements are included in the general term “landslide,” the more restrictive use of the term refers only to mass movements, where there is a distinct zone of weakness that separates the slide material from more stable underlying material.

Baum, R.L., and Johnson, A.M.,Steady movement of landslides in fine-grained soils--A model for sliding over an irregular slip surface, chap. D of Landslide processes in Utah--Observation and theory: U.S. Geological Survey Bulletinp.

D1-D Landslides are a perfect example of such changes of state. The materials involved are soils or fractured rock that consist of individual grains or particles separated by pores or fractures.

On a stable slope, the pressure of individual particles on each other where they are in contact holds the materials together. Earthflows are frequently characterized by alternate phases of surges and very slow movements or quiescence [5,6,7,8].In very slow conditions, an almost steady-state motion occurs, with limited seasonal variations, generally due to changes in pore water pressures [9,10,11,12,13].Many very large earthflows remain in a dormant state for many decades, allowing roads and buildings to be built on.

Landslides in Practice describes the technical tools needed to study landslides-site investigations, soil shear strength properties, and slope stability analyses-and details forty-five methods for stabilizing landslides or preventing instability in soils from occurring.

Most remediation techniques are keyed to the ENR Construction Cost Index to Reviews: 9. A landslide is defined as the movement of a mass of rock, debris, or earth down a slope.

Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity. The term "landslide" encompasses five modes of slope movement: falls, topples, slides, spreads, and flows.

These are further subdivided by the type of. Landslides impact every every U.S. state, although the areas most impacted are the mountainous regions of the Pacific coast, the Appalachians, and the Rocky Mountains.

coarse and fine grained soils for many units. Bedrock: Rock Slide; Mostly Coarse: Debris Slide; steady, downward movement of slope-forming soil or rock.

Movement is. A cohesive soil flow made up of mostly fine grained sediments (e.g., silt, clay and sand) that is triggered by intense rainfall or rapid snow melt. The movement of soil downslope along a planar surface of rupture. The rotational movement of soil downslope along a rotational surface of rupture.

Landslides are classified on the basis of the type of material that existed prior to the landslide and the type of movement that dominates during the landslide. Select from the following list the types of material that might exist prior to a landslide.

Rock b. Soil c. Earth d. Mud e. Debris 8. Landslides 1. LANDSLIDES Kaustubh Sane HJD Institute of Technical Education and Research 2. What are they. Mass movements include: • Landslides • Rock falls • Avalanches • Mud flows • Debris flows • Creep 3.

Anatomy of a rotational landslide 4. Landslides are downslope movements of masses of soil and/or rock. They can cause some of the most spectacular damage attributable to earth movement or ground movement. Landslides include mudflows ("mudslides"), earth slumps, rockfalls, and other types of slope failures.

Landslides can be fast or slow, wet or dry, small or large, shallow or deep. On Jan. 10,a landslide in La Conchita, on the coast north of Ventura, killed 10 people.

It also destroyed 13 homes and damaged The slide occurred after two weeks of steady rain. Landslides The term “landslide” refers to a wide range of mass wasting events that result in rock, soil, or fill moving downhill under the influence of gravity (Figure ).Landslides may be triggered by high rainfall, earthquakes, erosion, deforestation, groundwater pumping, or volcanic eruptions.

They may occur rapidly, such as in some mud and debris flows, or they can be as slow as. A black, fine-grained tabular intrusion between two layers of horizontal sedimentary rock myst logically be a. is slow but steady movement along a fault.

b) causes additional buildup of stress in an area, thereby increasing the likelihood that a strong quake will happen there soon landslides in coastal mountain ranges, or submarine. Landslides 1. Alex K George LAND SLIDES 2.

LANDSLIDES • Landslides are defined as mass movement of rock, debris or earth down a slope and have come to include broad range of motions whereby falling, sliding and flowing under the influence of gravity dislodges earth material.

- Khanna, B.K and Khanna, N.,   Loss of ground from rebound and lateral movement in adjacent excavations; Loss of support caused by lateral soil movement from landslides, downhill creep, and shifting retaining walls. Horizontal deformation of structures associated with vertical deformations may also occur, but such analysis is complex and beyond the scope of this book.

What do we call a landslide in which fine-grained soil moves cohesively but with extensive internal shearing. Earthflow. What do we call a landslide in which rocky material moves incohesively. Debris flow. Which of these are signs that creep has been taking place.

J-shaped trees. Expert contributions on aspects of landslide hazards, encompassing geological modeling and soil and rock mechanics, landslide processes, causes and effects, and damage avoidance and limitation strategies. Reference source for academics and professionals in geo-mechanical and geo-technical engineering, and others involved with research, design, construction and education related to high.

Some Slope-Movement Problems in Windsor County, Vermont, I Eocene to Miocene Biostratigraphy of New Jersey Core ACGS # 4: Implications for Regional Stratigraphy.

C:\Kathy\Government Documents Files\Gov Doc Weeding\Gov Doc Weeding Done\Missoula Is Done\I's\I. Steady movement of landslides in fine-grained soils; a model for sliding over an irregular slip surface. Categories: Publication; Types: Citation; Tags: Bulletin. Stratigraphy, structure, and paleogeography of Pennsylvanian and Permian rocks, San Juan Basin and adjacent .An earthflow is the downslope movement of mostly fine-grained material.

Earthflows can move at speeds within a very wide range, from as low as 1 mm/yr ( in/yr) to 20 km/h ( mph). Though these are a lot like mudflows, overall they are more slow moving and are covered with solid material carried along by flow from are different from fluid flows which are more rapid.Chapter D: Steady movement of landslides in fine-grained soils; a model for sliding over an irregular slip surface Chapter F: Kinematics of the Aspen Grove landslide, Ephraim Canyon, central Utah.