Experimental Investigation of Effects of Sliding Distance on Impact Force from Granular Sliding Mass to a Rigid Obstruction

Amir Ahmadipur, Tong Qiu

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Quantifying the impact force from a sliding mass is very important in risk assessment and engineering design against landslides. It gives insights into the behavior of granular flow and helps understanding the behavior of landslides. There are various parameters such as inclination angle, initial density, friction between granular flow and flow bed, and flow sliding distance, which affect impact force. A series of 2D sand flume experiments were performed to systematically investigate the effects of these parameters on impact force. In this paper the effects of sliding distance were studied by changing the location of a load measurement device along the sand flume. It was observed that depending on the inclination angle, the impact force may decrease or increase by increasing the distance between the flow origin and the obstruction (i.e., load measurement device). At inclination angles smaller than the friction angle of the sand, increasing the sliding distance will result in a reduction of the maximum impact force, while at inclination angles higher than the friction angle of the sand the impact force will increase as the sliding distance increases. In the experiments performed in this study, the maximum impact force decreased by 31% and increased by 92% at 30 and 60°, respectively, when the sliding distance was increased from 0.65 to 2.49 m.

Original languageEnglish (US)
Pages (from-to)333-340
Number of pages8
JournalGeotechnical Special Publication
Volume2018-March
Issue numberGSP 297
DOIs
StatePublished - Jan 1 2018
Event3rd International Foundation Congress and Equipment Expo 2018: Developments in Earth Retention, Support Systems, and Tunneling, IFCEE 2018 - Orlando, United States
Duration: Mar 5 2018Mar 10 2018

Fingerprint

sliding
Sand
Landslides
Friction
sand
friction
landslide
Risk assessment
flume experiment
Experiments
effect
risk assessment
engineering
experiment
parameter

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

Cite this

@article{e84ac1da4bb54a3fa85bde5145add1fe,
title = "Experimental Investigation of Effects of Sliding Distance on Impact Force from Granular Sliding Mass to a Rigid Obstruction",
abstract = "Quantifying the impact force from a sliding mass is very important in risk assessment and engineering design against landslides. It gives insights into the behavior of granular flow and helps understanding the behavior of landslides. There are various parameters such as inclination angle, initial density, friction between granular flow and flow bed, and flow sliding distance, which affect impact force. A series of 2D sand flume experiments were performed to systematically investigate the effects of these parameters on impact force. In this paper the effects of sliding distance were studied by changing the location of a load measurement device along the sand flume. It was observed that depending on the inclination angle, the impact force may decrease or increase by increasing the distance between the flow origin and the obstruction (i.e., load measurement device). At inclination angles smaller than the friction angle of the sand, increasing the sliding distance will result in a reduction of the maximum impact force, while at inclination angles higher than the friction angle of the sand the impact force will increase as the sliding distance increases. In the experiments performed in this study, the maximum impact force decreased by 31{\%} and increased by 92{\%} at 30 and 60°, respectively, when the sliding distance was increased from 0.65 to 2.49 m.",
author = "Amir Ahmadipur and Tong Qiu",
year = "2018",
month = "1",
day = "1",
doi = "10.1061/9780784481608.032",
language = "English (US)",
volume = "2018-March",
pages = "333--340",
journal = "Geotechnical Special Publication",
issn = "0895-0563",
publisher = "American Society of Civil Engineers (ASCE)",
number = "GSP 297",

}

Experimental Investigation of Effects of Sliding Distance on Impact Force from Granular Sliding Mass to a Rigid Obstruction. / Ahmadipur, Amir; Qiu, Tong.

In: Geotechnical Special Publication, Vol. 2018-March, No. GSP 297, 01.01.2018, p. 333-340.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Experimental Investigation of Effects of Sliding Distance on Impact Force from Granular Sliding Mass to a Rigid Obstruction

AU - Ahmadipur, Amir

AU - Qiu, Tong

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Quantifying the impact force from a sliding mass is very important in risk assessment and engineering design against landslides. It gives insights into the behavior of granular flow and helps understanding the behavior of landslides. There are various parameters such as inclination angle, initial density, friction between granular flow and flow bed, and flow sliding distance, which affect impact force. A series of 2D sand flume experiments were performed to systematically investigate the effects of these parameters on impact force. In this paper the effects of sliding distance were studied by changing the location of a load measurement device along the sand flume. It was observed that depending on the inclination angle, the impact force may decrease or increase by increasing the distance between the flow origin and the obstruction (i.e., load measurement device). At inclination angles smaller than the friction angle of the sand, increasing the sliding distance will result in a reduction of the maximum impact force, while at inclination angles higher than the friction angle of the sand the impact force will increase as the sliding distance increases. In the experiments performed in this study, the maximum impact force decreased by 31% and increased by 92% at 30 and 60°, respectively, when the sliding distance was increased from 0.65 to 2.49 m.

AB - Quantifying the impact force from a sliding mass is very important in risk assessment and engineering design against landslides. It gives insights into the behavior of granular flow and helps understanding the behavior of landslides. There are various parameters such as inclination angle, initial density, friction between granular flow and flow bed, and flow sliding distance, which affect impact force. A series of 2D sand flume experiments were performed to systematically investigate the effects of these parameters on impact force. In this paper the effects of sliding distance were studied by changing the location of a load measurement device along the sand flume. It was observed that depending on the inclination angle, the impact force may decrease or increase by increasing the distance between the flow origin and the obstruction (i.e., load measurement device). At inclination angles smaller than the friction angle of the sand, increasing the sliding distance will result in a reduction of the maximum impact force, while at inclination angles higher than the friction angle of the sand the impact force will increase as the sliding distance increases. In the experiments performed in this study, the maximum impact force decreased by 31% and increased by 92% at 30 and 60°, respectively, when the sliding distance was increased from 0.65 to 2.49 m.

UR - http://www.scopus.com/inward/record.url?scp=85048934362&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048934362&partnerID=8YFLogxK

U2 - 10.1061/9780784481608.032

DO - 10.1061/9780784481608.032

M3 - Conference article

AN - SCOPUS:85048934362

VL - 2018-March

SP - 333

EP - 340

JO - Geotechnical Special Publication

JF - Geotechnical Special Publication

SN - 0895-0563

IS - GSP 297

ER -