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Pressure type rock softening device

A softening device and pressure technology, which is applied in the direction of using stable tension/pressure to test the strength of materials and preparation of samples for testing, can solve the problems of not reflecting the influence of stress on softening characteristics, and achieve simple structure, reasonable design, Easy-to-use effects

Inactive Publication Date: 2013-10-23
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a pressure-type rock softening device that can consider the influence of stress and batch-process the softening of rock specimens in view of the shortcomings that the existing rock saturation softening process cannot reflect the influence of stress on the softening characteristics

Method used

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] see figure 1 and figure 2 , a cylindrical sealed container with an inner diameter of 700 mm and a headroom height of 240 mm is composed of a container bottom plate 6, a container side wall 8 and a container top cover plate 7, and a rubber sealing ring is arranged between the container top cover plate 7 and the container side wall 8 9. Sealed connection by fastening bolts 10, 30 test piece bases 2 are set on the container bottom plate 6, the diameter of each test piece base 2 is 50mm, and the test piece base 2 is provided with water-permeable holes to communicate with the water outlet pipe network 5, In the cylindrical airtight container, there are test piece top covers 3 which are equal in number to the test piece bases 2 and are aligned in pairs. Each test piece top cover 3 is provided with a water inlet and is connected to the water ...

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Abstract

The invention discloses a pressure type rock softening device. At least one test piece base (2) is arranged on a bottom plate (6) of a sealing container, water flowing holes are arranged on the test piece bases (2) and are communicated with a water outlet pipe network (5), test piece top covers (3) are arranged in the sealing container, the quantity of the test piece top covers (3) is equal to that of the test piece bases (2), and each two test piece top covers (3) are aligned with each other, each test piece top cover (3) is provided with a water inlet hole and connected with a water inlet pipe network (4), two ends of a rock test piece (1) are fixedly mounted between the test piece bases (2) and the test piece top covers (3), a sealing soft membrane is wrapped on the side outer wall of the rock test piece (1) so that the rock test piece (1) is hermetically separated from the inner cavity of the sealing container, and the sealing container is connected with a high-pressure water inlet valve (12) and a pressure gauge (13). The pressure type rock softening device can soften a batch of rock test pieces on the basis of stress interferences.

Description

technical field [0001] The invention relates to a rock softening device, in particular to a rock softening strength test for water conservancy and hydropower engineering, underground engineering, traffic engineering, petroleum engineering and other fields, especially for rock softening strength of different excavation and unloading partitions Measuring pressure rock softening device. Background technique [0002] Under the existing technical conditions, the rock mass softening strength test method is first to process the rock into a test piece with a diameter of 50mm and a length of 100mm, then use the water immersion method to make the test piece reach a saturated state, and then perform a uniaxial compressive strength test, and the obtained result is It is the strength of the rock after softening; the softening coefficient can be obtained by comparing the natural moisture content or the compressive strength of the rock specimen in a dry state. The rock softening strength ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N3/10
Inventor 蒋中明付宏渊秦卫星张新敏
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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