چکیده :
A channelized debris flow is usually represented by a mixture of solid particles of various sizes and water
flowing along a laterally confined inclined channel-shaped region to an unconfined area where it slows
down and spreads out into a flat-shaped mass.
The assessment of the mechanical behavior of protection structures upon impact with a flow, as well as
the energy associated to it, are necessary for the proper design of such structures which, in densely populated
areas, can prevent victims and limit the destructive effects of such a phenomenon.
In the present paper, a simplified analysis of the mechanics of the impact of a debris flow is considered
in order to estimate the forces that develop on the main structural elements of a deformable retention
barrier.
For this purpose, a simplified structural model of cable-like retention barriers has been developed – on
basis of the equation of equilibrium of wires under large displacement conditions, – and the restraining
forces, cable stresses and dissipated energies have been estimated.
The results obtained from parametric analyses and full-scale tests have then been analysed and compared
with the proposed model.
پرداخت با کلیه کارتهای عضو شتاب امکان پذیر است.