Hollow cylinder compacted soil sample saturation device

Abstract

The invention belongs to the technical field of geotechnical tests and discloses a hollow cylinder compacted soil sample saturation device, which includes a saturator top cover, a locking nut, a three-valve diaphragm, a pull rod, a buckle, a saturator base, a top permeable stone, Inner hollow cylindrical permeable stone, soil sample and bottom permeable stone, the bottom of the top permeable stone is provided with an inner hollow cylindrical permeable stone, the bottom of the hollow cylindrical permeable stone is provided with a bottom permeable stone, and the hollow cylindrical permeable stone is composed of The three-valve diaphragm is fully wrapped. The hollow cylindrical permeable stone and the three-valve diaphragm are located inside the base of the saturator. The three-valve diaphragm is fixed by a buckle. The top cover and the saturator base are connected and fixed by a tie rod. The pull rods are fixedly connected by locking nuts. The invention has a good support and permeable effect on the inner wall of the soil sample through the simple treatment method of adding hollow cylindrical permeable stones, and well solves the problem of HC soil sample saturation.

Description

technical field [0001] The invention relates to a saturation device, in particular to a hollow cylinder compacted soil sample saturation device, which belongs to the technical field of geotechnical tests. Background technique [0002] In indoor soil engineering tests, it is a conventional method to use a soil sample compactor to compact and dry soil to form a remodeled sample, and the soil sample saturation method is generally to use a saturator for 24 hours of water saturation, or to further reflect on a triaxial tester. pressure saturation. The above methods are suitable for conventional geotechnical triaxial tests, and corresponding specifications have been formed. However, for the HC advanced geotechnical test, since the interior of the soil sample is a hollow cylinder, the compaction and saturation equipment of the traditional triaxial soil sample cannot be directly used. The current HC test sample preparation method is generally to cut the undisturbed soil sample wit...

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Problems solved by technology

In particular, similar to the conventional triaxial test soil sample compaction technology, there are also related reports on the research and development of HC soil sample compactor technology. In principle, the inner and outer rings are formed by using three inner and outer valves, and the hollow cylindrical space between the inner and outer rings is It is a soil sample storage bin, and the corresponding top cover is locked by screws through the three pull rods fixed on the base, and then the ring-shaped compaction hammer and the corresponding guide rod device are used to dry the soil samples and compact them to form HC compacted soil However, the above-mentioned compacted HC soil samples cannot be saturated with the conventional triaxial test soil sample saturator device. It is necessary to design and develop a saturation device for HC compacted soil samples to meet the experimental requirements. , we propose a hollow cylinder compacted soil sample saturation device

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