Anchor rod combination stress performance test system and evaluation method

A technology of testing system and evaluation method, applied in the direction of using stable shear force to test material strength, using stable tension/pressure test material strength, measuring device, etc., can solve the lack of evaluation methods of bolt combination stress performance , The lack of combined mechanical performance testing of anchoring and supporting materials, the lack of testing and testing methods, etc., to achieve the effect of accurate and effective combined mechanical performance and accuracy

Active Publication Date: 2022-05-31
CHINA UNIV OF MINING & TECH (BEIJING) +1
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Problems solved by technology

[0003] The existing anchor bolt comprehensive test and evaluation system and method have the following problems: the anchor bolt comprehensive test system is mostly a single force test, and the corresponding test and evaluation methods are also analyzed around a single force, and the combined force of anchor support materials Performance testing is relatively lacking; current bolt testing and evaluation methods are mainly based on static testing or dynamic testing, and testing methods based on dynamic and static coupling loading are relatively lacking; methods for evaluating the mechanical performance of bolt combinations are relatively lacking

Method used

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  • Anchor rod combination stress performance test system and evaluation method
  • Anchor rod combination stress performance test system and evaluation method

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Embodiment Construction

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. Reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0025] The terms "a", "an", "the", "said" are used to indicate the presence of one or more elements / components / etc; the terms "including" and "having" are used to indicate open-ended inclusive means and means that additional elements / components / etc may be present in addition to the listed elements / components / etc.

[0026] like Figure 1 to Figure 2 shown, figure 1 A schematic diagram of a system for testing the mechanical perform...

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Abstract

The invention provides an anchor rod combination stress performance test system and an evaluation method. The anchor rod combination stress performance testing system comprises a fixing assembly, a stretching applying assembly, a shearing applying assembly, a torque applying assembly and a monitoring element. The stretching applying assembly comprises a stretching loading oil cylinder used for applying stretching force to the anchor rod body. The shearing applying assembly is used for applying static shearing force and dynamic shearing force to the anchor rod body. The torque applying assembly comprises a rotating motor used for applying torque to the anchor rod body. The monitoring element is connected to the anchor rod body so as to monitor stretching, shearing and torsion borne by the anchor rod body. The system for testing the combined stress performance of the anchor rod can simulate a high-stress environment encountered by the anchor rod main body in a site construction process, and respectively apply a dynamic load, a static load or a dynamic and static coupling load to the anchor rod main body, so that the combined stress performance of the anchor rod main body can be accurately and effectively tested and evaluated.

Description

technical field [0001] The invention relates to the technical field of underground engineering, in particular to a test system and an evaluation method for the mechanical performance of a bolt combination. Background technique [0002] As a common underground engineering anchoring and supporting material, bolts are subjected to the combined action of various external forces in the surrounding rock of coal mine roadways, tunnels and other engineering sites, including axial tension, shear force and torsion force. It is the basis for the parameter design of such supporting materials to clarify the combined force characteristics of anchoring support materials such as bolts. [0003] The comprehensive testing and evaluation systems and methods for bolts in the prior art have the following problems: the comprehensive testing systems for bolts are mostly single stress tests, and the corresponding testing and evaluation methods are also analyzed around a single stress, and the combi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/10G01N3/24G01N3/26G01N3/303
CPCG01N3/10G01N3/24G01N3/26G01N3/303G01N2203/0017G01N2203/0025G01N2203/0021G01N2203/0057G01N2203/0039G01N2203/0266
Inventor 王琦蒋振华李东浩徐传杰江贝黄玉兵
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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