Hollow cylinder remolded sample preparation device

Abstract

The invention discloses a hollow cylinder remolded sample preparation device. The hollow cylinder remolded sample preparation device comprises a fixed bottom plate, wherein a compacting instrument base is arranged on the fixed bottom plate; a solid guide vertical column is arranged on the compacting instrument base; the axis of the solid guide vertical column is vertical to a horizontal plane; three inner three-petal membranes are attached to the outer side of the solid guide vertical column to form an inner ring; three outer three-pedal membranes are arranged on the compacting instrument base to form an outer ring; outer three-pedal membrane buckling rings are arranged outside the outer ring formed by the outer three-pedal membrane; a hollow cylindrical space formed by the outer ring and the inner ring is a soil sample storage cabin; the soil sample storage cabin is provided with a compacting hammer base; the hammer body of the compacting hammer is inserted into the compacting hammer base; a guide rod is arranged on the upper part of the compacting hammer body. By adopting the hollow cylinder remolded sample preparation device, a hollow cylinder soil sample is prepared by adopting a compacting method, so that convenience is brought to soil sample molding and discharging; the hollow cylinder remolded sample preparation device is convenient to disassemble and assemble, is simple in principle, and has high operational feasibility and extremely large application prospect.

Description

technical field [0001] The invention relates to a device for preparing hollow cylinder remolded soil samples, in particular to a hollow cylinder remolded soil sample preparation device. Background technique [0002] The hollow cylinder (HCA) test is an advanced indoor geotechnical test, which is used to test the static and dynamic response characteristics of the simulated soil under the action of internal and external horizontal loads, vertical loads and torsional shear loads; the preparation method of the hollow cylinder sample is generally Cut the solid cylinder from the inside along the central axis. For example, the patent number is CN204241289U, and the patent name is a technical solution disclosed by the patent of a soft clay hollow cylinder sample inner core drilling device; or by direct pressure such as vacuum Preloading method, such as the patent No. CN103900872A, the technical scheme of the patent titled vacuum preloading preparation device and method for reshaping...

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Problems solved by technology

[0002] The hollow cylinder (HCA) test is an advanced indoor geotechnical test, which is used to test the static and dynamic response characteristics of the simulated soil under the action of internal and external horizontal loads, vertical loads and torsional shear loads; the preparation method of the hollow cylinder sample is generally Cut the solid cylinder from the inside along the central axis. For example, the patent number is CN204241289U, and the patent name is a technical solution disclosed by the patent of a soft clay hollow cylinder sample inner core drilling device; or by direct pressure such as vacuum Preloading method, such as the patent No. CN103900872A, the technical scheme of the patent titled vacuum preloading preparation device and method for reshaping soft clay hollow cylindrical samples; or conventional consolidation methods to form hollow cylindrical samples; traditional geotechnical Test cylindrical samples are generally prepared with a three-valve compactor, but it is much more difficult to prepare hollow cylindrical soil samples by compacting similar principles; for the above reasons, it is necessary to design and develop a compactor for preparing hollow cylindrical soil samples. A variety of equipment to meet the needs of use

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