Experimental Study on Rockfall Impact Force Applied to Frame Shed Tunnels

Abstract. Rockfall protection embankments are ground levees designed to stop falling boulders. This paper investigates the behaviour of geocells to be used as components of these structures. Geocells, or cellular confinement systems, are composite structures associating a manufactured envelope with a granular geomaterial. Single cubic geocells were subjected to the impact resulting from dropping a spherical boulder. The geocells were filled with fine or coarse materials and different boundary conditions were applied on the lateral faces. The response is analysed in terms of the impact force and the force transmitted by the geocell to its rigid base. The influence on the geocell response of both the fill material and the cell boundary conditions is analysed. The aim was to identify the conditions resulting in greatest reduction of the transmitted force and also to provide data for the validation of a specific numerical model.

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An Experimental Study on Impact Force Identification Using Output Response of PVDF Sensor

Sensors and Materials ◽

10.18494/sam.2018.1344 ◽

2018 ◽

pp. 7

Keyword(s):

Experimental Study ◽

Impact Force ◽

Force Identification ◽

Output Response

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Flexible and transparent ‘self-adhesive’ thin film strain, impact, force, pressure, and temperature sensors: an experimental study

10.1088/978-0-7503-3439-6ch15 ◽

2021 ◽

Author(s):

Shreyas P Bhat ◽

B Pavithra ◽

M M Nayak

Keyword(s):

Thin Film ◽

Experimental Study ◽

Impact Force ◽

Temperature Sensors ◽

Force Pressure

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Experimental study on impact force due to collision of rockfall and sliding soil mass caused by seismic slope failure

Landslides ◽

10.1007/s10346-020-01461-z ◽

2020 ◽

Author(s):

Susumu Nakajima ◽

Keita Abe ◽

Masahiro Shinoda ◽

Susumu Nakamura ◽

Hidetaka Nakamura

Keyword(s):

Experimental Study ◽

Slope Failure ◽

Impact Force ◽

Soil Mass ◽

Sliding Soil

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Experimental Study of Evaluating Bio-Mechanical Characteristics of Cushioning System Using Nano-Shock Absorption Pocket

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.321-323.161 ◽

2006 ◽

Vol 321-323 ◽

pp. 161-165

Author(s):

Byung Young Moon ◽

Chun Tae Lee ◽

Kwon Son ◽

S.W. Chung

Keyword(s):

Experimental Study ◽

Mechanical Testing ◽

Mechanical Characteristics ◽

Impact Force ◽

Testing Machine ◽

Shock Absorption ◽

Load Displacement ◽

Porous Grains

This study developed and evaluated a shoe cushioning system to reduce impact force patterns during running. The shoe cushioning system is composed with a polyurethane pocket, which contains water and porous grains to absorb the force against the weight inside the pocket. Load-displacement curves for the shoe cushioning system were obtained from an instrumented testing machine and the results were compared with various pockets that have air, water or grains. Mechanical testing showed that the pocket with 5 g particles was the best for the shoe cushioning system. This founding will be helpful to designing the shoe.

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