The anchor fullness meter is a portable battery-powered instrument. The overall condition of rock bolts and grouting can be detected and classified on site, and the length of rock bolts can be determined.
Specially developed high-strength plastic chassis, highly integrated host, is more conducive to the handling and carrying of field construction. Exclusive high-capacity lithium battery and portable
The fast charging device solves the problem of lack of electric energy for field construction instruments.
Exclusive Own-Send-in-One Sensor
Rock bolt performance is often compromised by invisible defects. For example: insufficient grouting, poor contact between anchor and grouting or rock and grouting, or because the anchor is broken or shorter than required. The anchor fullness meter can detect various defects that affect the load capacity of the anchor.
The anchor fullness meter adopts ARM9 microprocessor and advanced EDM source technology (frequency bandwidth is twice higher than supermagnetic source, aftershock is short, and energy is continuously controllable), and other types of source can also be selected.
Instrument features:
1. The instrument adopts Linux operating system (independent intellectual property rights), which can directly provide the parameters of bolt length and grouting performance on site (currently unique in China).
2. Can detect reinforced anchors, hollow anchors, resin anchors, anchor bars, etc.
3. Adopt 512M ～ 1G ultra-large capacity CF card, which can maintain long-term work needs.
4. Small and light.
5. Software processing intelligent "fool" type.
6. Exclusively developed special rechargeable battery power supply system, small and light, to ensure the normal operation of the instrument.
ã€Scope of application】
The anchor fullness meter has been widely used in various fields. It is used in hydropower stations and water tunnels, urban traffic and subway tunnels. The Three Gorges Development Corporation also uses this instrument. After many of their test results, the bolts, grouting and surrounding rocks were taken out together to verify with the actual situation, and the results are completely consistent. The literature obtained from these experiments is very valuable.
1. Anchoring quality monitoring. Now, the contractor can inspect the anchoring work as soon as it is over and provide the user with evidence of good anchoring. Anchors with poor grouting can be detected, and contractors and users can easily test the performance of the installed rock bolts.
2. Useful evaluation tools Many users hope that after the completion of the new anchoring work, they can check it by themselves and inspect the old anchoring works of unknown reliability. Engineering consultants can use the anchor fullness meter to control the quality of rock bolts in many fields
3. Contribute to safe construction. "How safe is the rock cave? Is the top of the anchor reliable?" The anchor fullness meter can monitor and ensure the safety of the construction site.
4. Field tests of improved anchors and anchoring methods showed that the actual conditions of the anchors did not fully meet the expected requirements. Now, this deficiency can be eliminated. Anchor rod fullness meter can be used to evaluate the anchor rod and anchoring technology. Manufacturers can use it to check product performance, find faults, and choose the best anchoring method.
5. Anchor rod fullness meter eliminates expensive destructive tests, such as excavation and core pulling and hydraulic pullout tests.
ã€working principle】
There is a spark emission sensor in the probe of the anchor fullness meter (the transmitter has a frequency bandwidth, short aftershock, good repeatability, and controllable energy), which can anchor to a frequency that is 2 times wider than the supermagnetic transducer The rod sends longitudinal and transverse waves. These waves propagate along the anchor rod, and the wave speed depends on the grouting around the anchor rod or at the end where it is reflected back to the probe.
At this time, the probe acts as a receiver to detect the reflected wave, and the reflected wave is analyzed by the computer. By processing and analyzing the signal, the instrument determines the length of the bolt and the overall condition of the rock and grouting. These measurements are displayed on the instrument panel.
[Two ways to provide information]
The test results are completely displayed on the display, the length of the anchor rod is marked, the fullness is quantified numerically, and the defect position is marked.
The grading system divides the anchor rod into four grades of A, B, C and D
ã€specification】
Instrument size (shockproof ABS) 17 × 32 × 31cm
Instrument weight: 2kg
Probe face diameter: Φ25mm
Probe cable length: 10m
Power supply: Rechargeable battery, the battery can work for 8 hours.
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