China YZW30 50 100 200 computer-controlled rock stress direct shear apparatus

YZW30/50/100/200 computer-controlled rock stress direct shear apparatus
Brief Intruduction:
The direct shear apparatus is designed and manufactured according to China national standard <Test Method of Rock for Highway Engineering>(JTG F41-2005) and <Specifications for Rock Test Water Conservancy and Hydroelectric Engineering>(SL264-2001).
Purpose and Application:
* direct shear test of the structural surface of rock (such as: Joint surface, layer inside surface, slice inside surface, crack surface and so on);
* direct shear test of the rock itself and the cementing interface between concrete or mortar and rock ;
* shear strength test of concrete and other materials;
* shearing strength test of various rock, such as: round rock, square rock, cube rock, rock fragment and rock's uniaxial and triaxial compressive strength, tensile strength, shear strength, elastic modulus, wave ratio, permeability, Biot constant, stress sensitivity, dynamic rock mechanics parameters, P wave, S wave velocity, acoustic porosity, fracture toughness and stress orientation and test parameters such as size, Kaiser effect
main technical parameters:
modelYZW30YZW50YZW100YZW200Normal direction rated pressure≤500kN≤300kN≤6000kN≤2000kNNormal direction displayed value precisionGrade IGrade IGrade IGrade ITangential direction rated pressure≤300KN≤500KN≤1000KN≤2000KNTangential direction displayed value precisionGrade IGrade IGrade IGrade ILoads-adding control methodcomputer control and manual stepless speed control system
Overall weight2500kg2500kg3400kg5000kg
Normal direction shearing loads-adding speed0.1~20KN/S(can be set)0.1~20KN/S(can be set)0.1~20KN/S(can be set)0.1~20KN/S(can be set)Load resolution0.01kN0.01kN0.01kN0.01kNdisplacement measurementComputer sampling(0.001mm)Computer sampling(0.001mm)Computer sampling(0.001mm)Computer sampling(0.001mm)Loads-adding method electric hydraulicelectric hydraulicelectric hydraulicelectric hydraulicWorking voltage380V/220V380V/220V380V/220V380V/220VOverall dimensions1200x800x17351200x800x17351300x1000x19001600x1300x1800configurationLenovo computer,color LCD,HP color printerDirect shearing casestandard
Main feature:
1,Computer automatic control, that is, speed, force value, displacement and other parameters are controlled and displayed in the computer, and automatically analyzed and calculated in the database.
2,The test curve will be record in real time during test process, and displayed saved, and sampled at high speed.Data and report processing functions provide users with a special report editing tool for graphic layout, which is characterized by flexible operation, simple and easy to learn, and can easily print test curves and test valuesReport forms can issue: curve of shear stress-shear displacement; curve of shear stress - normal direction displacement, curve of shear stress - normal direction stress(C - Φ value), can display the stress-strain curve at the same time, force - time curve, force - displacement curveReal-time display the current normal direction force value and peak, and tangential direction force value and peak value, test process information, current displacement, etc.The software is equipped with automatic zeroing system of displacement and force value, which eliminates such factors as errors of manual meter readingWith overload protection, when the force or displacement exceeds the rated theoretical value of the testing machine, automatic unloading and stop the testThe area, height, ambient temperature and other parameters of each group of test can be changed or filled in according to the actual situationTwo sets of system control free conversion, ie. manual control system and computer automatic control system.Easy replacement, ensure that the computer virus, not normal boot and other objective factors exist, the work will not be affected.The displacement measurement adopts four displacement meters for diagonal measurement, and the data is transmitted to the computer in real timeThe test procedure can be edited by the operator on-site according to the actual situationThe pressure holding point can be set at any multiple points, the speed at each stage can be set at any time, and the pressure holding time can be set at any time. After reaching the preset conditions, it will automatically switch to the next stage.Main operating interface: