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Reinforced earth retaining wall model test apparatus and method
The invention discloses a reinforced earth retaining wall model test apparatus and method. The apparatus includes: a model case (1), a retaining wall panel (5), filling materials (7), a vertical load loading system (10) and a testing system. The filling materials (7) are put inside the model case (1). The retaining wall panel (5) is arranged in front of the model case (1). The vertical load loading system (10) is arranged above the model case (1) and applies vertical pressure to a model. According to the invention, the filling materials (7) are made of mixed cast-steel shots which have a density between 5.2g/cm<3> to 7.0g/cm<3> and an internal friction angle between 28 DEG to 35 DEG. The density of the mixed cast-steel shots is 3-4 times greater than that of ordinary sand filling materials, and the internal friction angle of the mixed cast-steel shots is similar to that of ordinary sands. A stress field is made equivalent by increasing the density of the filling materials, so that the stress state of the filling materials of a retaining wall is made to be equivalent, and the stress and deformation characteristics of the model can be measured effectively. The filling materials can be used repeatedly for many times, which significantly reduces the cost of the testing.
Reinforced earth retaining wall model test apparatus and method
The invention discloses a reinforced earth retaining wall model test apparatus and method. The apparatus includes: a model case (1), a retaining wall panel (5), filling materials (7), a vertical load loading system (10) and a testing system. The filling materials (7) are put inside the model case (1). The retaining wall panel (5) is arranged in front of the model case (1). The vertical load loading system (10) is arranged above the model case (1) and applies vertical pressure to a model. According to the invention, the filling materials (7) are made of mixed cast-steel shots which have a density between 5.2g/cm<3> to 7.0g/cm<3> and an internal friction angle between 28 DEG to 35 DEG. The density of the mixed cast-steel shots is 3-4 times greater than that of ordinary sand filling materials, and the internal friction angle of the mixed cast-steel shots is similar to that of ordinary sands. A stress field is made equivalent by increasing the density of the filling materials, so that the stress state of the filling materials of a retaining wall is made to be equivalent, and the stress and deformation characteristics of the model can be measured effectively. The filling materials can be used repeatedly for many times, which significantly reduces the cost of the testing.
Reinforced earth retaining wall model test apparatus and method
DU YUNXING (author) / LIU HUI (author) / ZHOU FEN (author)
2015-12-02
Patent
Electronic Resource
English
IPC:
E02D
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Model Test of Reinforced Earth Retaining Wall
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