I. Overview:
The Rock Direct Shear Tester is developed in accordance with the national standards (GBT 50266-2013) "Standard for Test Methods of Engineering Rock Mass," "Test Code for Rock in Highway Engineering" (JTG F41-2005), and "Test Code for Rock in Water Conservancy and Hydropower Engineering" (SL264-2001). It is primarily used for direct shear tests on weak rocks themselves or their structural surfaces (such as joint planes, bedding planes, foliation planes, cleavage planes, etc.) under rated direct shear strength, as well as for shear strength tests at the bonding interface between mortar and rock, and for concrete-to-other-materials bonding surfaces. Its structural performance meets the requirements of the test specifications.
II. Main Technical Parameters:
1Normal Force Rating: F≤500KN
2. Torsional rated pressure: F ≤ 500 KN
3. Normal Space: ≤450mm
4. Horizontal Space: ≤240mm
5、Shearing Load SpeedV0.1~25 KN/S (adjustable)
Positioning control speed: 0.5mm-10mm/s
6、Load Indication Accuracy: 0.01 KN
7. Loading Method: Electric Hydraulic.
8. Load Control Method: Computer servo fully automatic control.
9. Working Voltage: 380V/220V
10. Configuration: Brand-name computers, LCD monitors
11. Total Machine Weight (approx.): 1300 Kg
12. Dimensions: 1100x650x1580mm
13. Multi-way controllers, software, and host are manufactured by the same manufacturer for easy upgrades and modifications. The software boasts independent intellectual property rights, with a certificate of independent intellectual property rights, certificate number: 2019SR0598613, facilitating the addition of new features; multi-way controllers use a single control board card for direct control of both normal and tangential routes, with at least ≥12 control and collection channels.
14. The hydraulic pump utilizes an ultra-quiet Italian进口 Mazak gear pump. System hydraulic pressure ≤ 25 MPa.
III. Key Features:
1. Computerized automatic control, where parameters such as speed, force, and displacement are all controlled and displayed on the computer, with automatic analysis and calculation in the database.
2. Real-time recording of test curves during the testing process, displaying and saving, with high-speed sampling.
3. Data and report processing features provide users with a dedicated report editor for graphic layouts, featuring flexible operations and ease of learning, allowing for convenient printing of test curves and values.
4. Reports available: Shear stress vs. shear displacement curve, displacement vs. displacement curve, shear stress vs. normal displacement, shear stress vs. normal stress curve (provided: C-Φ value). Can simultaneously display stress-strain curve, force-time, force-displacement, and other curves. Key points on the curves can be freely extracted.
5. Real-time display of the current normal and shear force values, peak values, test process information, and current displacement.
6. The software features an automatic zeroing system for displacement and force values, eliminating inconsistencies due to varying human reading errors.
7. Each test's area, height, environmental temperature, and other parameters may be adjusted or filled out based on the actual situation.
8. The testing process can be edited on-site by the operator based on actual conditions, with simple and convenient programming.
9. Pressure-holding points can be set at multiple locations, with speeds and pressure-holding times adjustable at each stage. The system automatically transitions to the next stage upon reaching the preset conditions.
10. With the corresponding auxiliary equipment added, various tests with compressive characteristics can be performed, including uniaxial compressive strength, rock tensile strength, rock elastic modulus Poisson's ratio, and deformation modulus tests under the rated pressure of the legal phase.
Four: Main Operation InterfaceV. Configuration List:
1. Main Unit One Set
2. Oil Source Control System - Set
3. Control Software and Controllers - A Set
4. Electro-hydraulic Servo Control Valve Two Sets
5. Radial High-Precision Sensor (500KN) - Set of Two
6. High-Pressure Fuel Pump Motor (Import) - Set of Two
7. Cutting Attachments (Standard Set Included)
8. Shear-specific Pressure Heads - Two
9. Computers, LCD Monitors
