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Deep-sea sediment soil mechanics in-situ tester capable of carrying submersible vehicle

A deep-sea sediment and tester technology, which is applied in the direction of using stable shear force to test material strength and using stable tension/pressure to test material strength, etc. Due to the limited accuracy and other problems, the effect of easy carrying, light weight and compact structure of the submersible is achieved.

Active Publication Date: 2015-07-15
CHANGSHA RES INST OF MINING & METALLURGY
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Problems solved by technology

Although the principle of hydraulic pressure transmission is used, pistons with different cross-sectional areas are used to amplify the pressure and improve the accuracy, but the measurement accuracy of the existing measuring devices is still very limited, and it is difficult to accurately measure the geomechanical parameters of seabed sediments

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  • Deep-sea sediment soil mechanics in-situ tester capable of carrying submersible vehicle
  • Deep-sea sediment soil mechanics in-situ tester capable of carrying submersible vehicle
  • Deep-sea sediment soil mechanics in-situ tester capable of carrying submersible vehicle

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as Figure 1 ~ Figure 4 Shown is an embodiment of the deep-sea sediment geomechanics in-situ testing instrument capable of carrying a submersible of the present invention. The invention includes a frame and a shear strength testing mechanism and a penetration resistance testing mechanism arranged on the frame. Wherein, the shear strength testing mechanism includes a shear driving device, a shear bar 1, a cross plate 2, a high pressure chamber 3 (such as a titanium high pressure chamber), a magnetic element 4, a torque tester 5 and a torque motor 6, the magnetic element 4 and The torque tester 5 is set in the high-pressure chamber 3 made of titanium. One end of the shear rod 1 is fixedly connected to the cross plate 2, and the other end extends into the high-pressure chamber 3 to connect with the magnetic element 4. The torque teste...

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Abstract

The invention discloses a deep-sea sediment soil mechanics in-situ tester capable of carrying a submersible vehicle. The tester comprises a shear strength testing mechanism and a penetration resistance testing mechanism, wherein the shear strength testing mechanism comprises a shear driving device, a shear rod, a cross plate, a high-pressure chamber, torque testers and a torque motor; the torque testers are arranged in the high-pressure chamber and are used for detecting the torque of the torque motor; one end of the shear rod is fixedly connected with the cross plate, and the other end of the shear rod stretches into the high-pressure chamber and is connected with the torque motor; the shear driving device is used for driving the shear rod to move up and down; the torque motor is used for driving the shear rod and the cross plate to rotate; the penetration resistance testing mechanism comprises a penetration driving device, a penetration rod and a displacement sensor; the penetration rod and the displacement sensor are arranged on the penetration driving device; the penetration rod is connected with the displacement sensor; and the penetration driving device is used for driving the penetration rod to move up and down. The in-situ tester disclosed by the invention has the advantages that the submersible vehicle is convenient to carry, the measuring operation time is reduced, the working efficiency is high and the like.

Description

technical field [0001] The invention relates to a device for testing the mechanical properties of seabed sediments, in particular to a deep-sea sediment geomechanics in-situ tester capable of carrying submersibles. Background technique [0002] In deep sea engineering, the shear resistance and pressure bearing characteristics of seabed sediments are the necessary basis for the design, construction and operation of seabed operation equipment. Therefore, it is necessary to obtain the geomechanical parameters of seabed sediments accurately and efficiently. [0003] At present, the test for the mechanical properties of seabed sediments generally takes deep-sea samples and then completes the test in the laboratory. However, seabed sediments have the characteristics of low bearing capacity, large compression deformation, high sensitivity, and easy to be disturbed by the environment. During the sampling process, they are easily disturbed to change their natural structure; at the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N3/08
Inventor 阳宁李力陈铭程阳锐张明杨永顺易剑
Owner CHANGSHA RES INST OF MINING & METALLURGY
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