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Device and method for testing comprehensive anchoring performance of basalt fiber bar anchor cable

A technology of basalt fiber and anchoring properties, applied in the field of anchor cables

Active Publication Date: 2021-11-05
WUHAN CENT CHINA GEOLOGICAL SURVEY CENT SOUTH CHINA INNOVATION CENT FOR GEOSCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the problem of scientific evaluation of the comprehensive anchoring performance of basalt fiber-reinforced anchor cables, embodiments of the present invention provide a comprehensive anchoring performance testing device and method for basalt fiber-reinforced anchor cables

Method used

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  • Device and method for testing comprehensive anchoring performance of basalt fiber bar anchor cable
  • Device and method for testing comprehensive anchoring performance of basalt fiber bar anchor cable
  • Device and method for testing comprehensive anchoring performance of basalt fiber bar anchor cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Please refer to figure 1 with 2 Embodiments of the present invention provide a combined anchoring performance testing device for basalt fiber ribs, including anchor cable anchoring systems and data acquisition systems.

[0028] The anchor cable anchoring system includes a test bench, a basalt fiber 2, and a distributed optical fiber 3 bonded to the surface of the basalt fiber 1, and the test bench is provided. The anchor solid section, and the outer anchor section of the other end, the anchoring section Anchor 2 ends of the basalt fiber 2, the outer anchor section anchoring the basalt fiber 2 on the other end.

[0029] Specifically, both ends of the test bench are provided with a baffle 7, and both of the baffles 7 have perforations that are passed through the basalt fiber 2, and the distributed optical fiber 3 is bonded. The basalt fiber 2 ends through the baffle 7 at both ends of the test bench.

[0030] The anchor solid section is disposed at one end of the test bench 1,...

Embodiment 2

[0042] On the basis of Example 1, please refer to figure 1 , 2 And 3, the basalt fiber ribbon anchor cable integrated anchoring performance test device also includes a shear sliding system for simulating the shear stress conditions of the basalt fiber 2.

[0043] Specifically, the shear sliding system includes a two-test bench side plate 27 disposed on both sides of the test bench 1, a shear loading cartridge 19 between the two test bench side plates 27, and The fixed shear distribution shell 31 and push-pull components are bonded to the basalt fiber bond 2.

[0044] The shear dispensing housing 31 is disposed in the length of the basalt fiber 2 and is closely fitted with the basalt fiber 2. Here, the shear dispensing casing 31 can be fixed to the surface of the basalt fiber 2, or the mash-mounted fibers 2 can be clamped through the shear distribution shell 31 to fix it.

[0045] The two described test bench side plate 27 is fixed, and the two test bench side plate 27 is provided ...

Embodiment 3

[0050] On the basis of Example 2, please refer to figure 1 , 2 , 3 and 4, two test bench side plates 27 can be set to be scalable test bench 5.

[0051] Specifically, the scalable test bench 5 includes a left pulling bracket 35 and a right pull retractable bracket 36 connected by the drawer rail 37, and the two test bench side plates 27 are the left pulleration retractable. The opposite sides of the bracket 35 or the right pulling telescopic bracket 36 are opposed. Here, the drawer rail 37 selects a drawer rail having a self-locking function, the left pulling telescoping bracket 35 or the right pull retractable bracket 36 to pull to any position relative to any position and secured in the drawer rail .

[0052] The left pulling telescoping bracket 35 and the right pulling telescoping bracket 36 are opposed to changing the position of the shear loading cartridge 19 to change the length of the entire retractable experimental gantry 5, thereby matches the test bench 1 The length, tha...

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Abstract

The invention provides a device for testing comprehensive anchoring performance of a basalt fiber bar anchor cable. The device comprises an anchor cable anchoring system and a data acquisition system, wherein the anchor cable anchoring system comprises a test bed, a basalt fiber bar arranged right above the test bed and distributed optical fibers bonded to the surface of the basalt fiber bar, one end of the test bed is provided with an anchoring section, the other end is provided with an outer anchoring section, the anchoring section anchors one end of the basalt fiber bar, and the outer anchoring section anchors the other end of the basalt fiber bar; and the data acquisition system comprises a modulation-demodulation instrument and an optical grating which are connected in series with the two ends of the distributed optical fibers, and a center hole jack and a dynamometer which are arranged between the outer anchor section and the end part of the test bed, and the basalt fiber bar passes through the center hole jack and the dynamometer. The device has the beneficial effects that the ductility, the creep property and the shear deformation are accurately measured, and the comprehensive anchoring properties such as the drawing force, the prestress loss, the shear resistance, the ductility and the creep characteristic of the basalt fiber bar anchor cable are analyzed and obtained.

Description

Technical field [0001] The present invention relates to the field of anchor core, in particular, to a comprehensive anchoring performance testing device and method for the anchor cable of basalt fiber gluten. Background technique [0002] With the continuous development of materials scientific, a large number of new fiber reinforced composite anchors (courses) have been carried out to replace the traditional steel anchor (counted) research, among which the tensile strength of basalt fiber is ≥1100MPa. 4 times the ordinary thread steel, the density is 1 / 3 ~ 1 / 4 of ordinary steel bars, and has the advantages of good acid and alkali-resistant corrosion resistance, and the performance stability and low raw material cost under high temperature conditions is the steel bar. Good alternatives, have a wide range of engineering applications, have received increasing attention, anchor (s), anchoring, no longer limited to steel bars and cement mortar. [0003] At present, engineering and res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/10G01N3/12G01N3/24G01N3/28G01N3/02G01N3/06
CPCG01N3/10G01N3/12G01N3/24G01N3/28G01N3/02G01N3/068G01N2203/0003G01N2203/0017G01N2203/0019G01N2203/0025G01N2203/0048G01N2203/0071G01N2203/0641G01N2203/0676G01N2203/0682G01N3/04G01N2203/0252G01N2203/028G01N2203/0411E21D21/02G01M11/083G01M5/0091G01L1/242G01M11/085Y02A10/23E02D5/76G01L11/025G01N3/08
Inventor 代贞伟张彦君付小林叶润青郭进军杜志刚
Owner WUHAN CENT CHINA GEOLOGICAL SURVEY CENT SOUTH CHINA INNOVATION CENT FOR GEOSCIENCES
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