Roadbed along river is one of main types of highway roadbeds in mountainous areas. Because of the river water effect, the roadbed is not only easily destroyed, but also difficultly restored. The destruction of riverside roadbed is usually regarded as the result of river swash. In fact, it is a dynamic process as a longtime complex interaction of roadbed rock/soil mass and river water, underground water and surface water. In order to investigate the mechanism of dynamic instability, equipment used to simulate the dynamic destruction process is developed. The equipment is composed of three parts. Part 1: rock/soil mass structure model. Part 2: simulation system under dynamic hydraulic boundary conditions. Part 3: measurement system. The present equipment can be used to investigate the mechanism of dynamic instability of the rock mass of roadbed in complex hydraulic boundary conditions and detect the changing regularity of lateral earth pressure acting on retaining structures under different drainage conditions.


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    Title :

    A Model Equipment Used to Investigate Mechanism of Dynamic Instability for Riverside Roadbed


    Contributors:

    Conference:

    First International Conference on Transportation Engineering ; 2007 ; Southwest Jiaotong University, Chengdu, China



    Publication date :

    2007-07-09




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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