Vacuum prepressing-overloading-dynamic compaction combined consolidometer
A preloading and vacuum technology, applied in the field of geotechnical engineering, can solve the problems that the vacuum degree is difficult to reach the deep soil, it is difficult to meet the practical application of engineering, and the loss of vacuum degree along the way is large, so as to achieve good consolidation drainage effect and shorten the solidification time. The effect of shortening time and increasing value
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[0021] Example 1. The outer walls of the soil sample chamber 4 and the air pressure chamber 2 are cylindrical cavities made of polyvinyl vinyl material (PVC), the cavity height is 1000mm, the inner diameter is 500mm, and the wall thickness is 10mm; The piston 3 separating the air pressure chamber 2 and the soil sample chamber 4 is made of alloy material, with a thickness of 35mm, and a 5mm diameter hole is left in the middle for the drain hose between the drain plate cap 6 and the piston connection chamber 1 to pass through; the air pressure chamber 2 The top cover 7 at the top is made of steel, with a diameter of 600mm and a thickness of 10mm. A circular channel with a diameter of 100mm is reserved at the center of the top cover 7 for the hoop on the outer wall of the piston connecting chamber 1, and the distance between the top cover 7 and the center of the circle is 150 mm. There are four holes with a diameter of 6mm in two orthogonal directions. The four rubber pipes respect...
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