Hollow cylinder compacted soil sample saturation device

Abstract

The invention belongs to the technical field of soil engineering tests, and discloses a hollow cylinder compacted soil sample saturation device. The device comprises a saturator head cover, a lock nut, a trivalve diaphragm, a pull rod, a retaining ring, a saturator base, a top water permeable stone, a hollow cylindrical porous stone, a soil sample and a bottom porous stone, wherein the hollow cylindrical porous stone is arranged at the bottom of the top porous stone; the bottom porous stone is arranged at the bottom of the hollow cylindrical porous stone, the hollow cylindrical porous stone iscompletely coated with the trivalve diaphragm, the hollow cylindrical porous stone and the trivalve diaphragm are arranged inside the saturator bottom, and the trivalve diaphragm is fixed by the retaining ring; the head cover and the saturator base are connected and fixed through the pull rod; and the pull rod is fixedly connected through the lock nut. The hollow cylinder compacted soil sample saturation device has an excellent supporting and water penetrating effect for the inner wall of a soil sample by a simple treatment method for adding the hollow cylindrical porous stone, and can be used for well solving 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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