Surrounding rock fracture evaluation instrument

Rock fracturing refers to the process of creating cracks in the rock mass (i.e. surrounding rock) around tunnels, mines, or other underground engineering through human or natural means. This process is usually aimed at improving the permeability of the rock mass, reducing stress concentration, or optimizing the stability of engineering structures.

By evaluating the formation of cracks in the surrounding rock, the propagation path and distribution characteristics of cracks under stress can be understood, thereby optimizing the design of tunnel support structures, fracturing schemes, and improving construction efficiency and safety; In oil and gas development or mineral extraction, rock fracturing can significantly enhance the permeability of reservoirs, thereby improving resource recovery. Evaluating the conductivity and distribution range of cracks can help develop more scientific mining strategies; The formation of cracks in the surrounding rock may cause problems such as rock instability or ground subsidence. Through systematic evaluation, potential risks can be predicted and corresponding measures can be taken to reduce the occurrence of geological disasters.

MacroMR12-150H-HTHPSurrounding rock fracture evaluation instrumentIt is a cabinet style nuclear magnetic resonance imaging system based on rare earth neodymium iron boron permanent magnet materials launched by Suzhou Neway. Its C-shaped large cavity magnet design is suitable for the analysis and imaging of large-sized core samples, and has the characteristics of high resolution, high stability, and convenient operation.

MacroMR12-150H-HTHP Stress Seam Evaluation Instrument Parameters:

Magnetic field strength: 0.3T ± 0.03T

Injection direction: horizontal/vertical

Magnet shape: C-shaped open type

Sample size: diameter ≤ 25.4mm, length ≤ 80mm (high temperature and high pressure)

MacroMR12-150H-HTHP Stress Seam Evaluation Instrument Highlights:

Ø 110/150-C type space, easy injection without pressure

Specially designed for large samples, suitable for rock and soil samples with diameters ranging from 25 to 150mm

Ø High precision constant temperature probe, advanced gradient system

Stable and reliable data collection, achieving more functions and better imaging effects

Ø Rich variety of attachment extensions

Multi specification core gripper and sample chamber

Simulate various real environments (temperature, pressure, fluid, gas, etc.)

Application of MacroMR12-150H-HTHP Stress Seam Evaluation Instrument:

Ø Rock and soil materials (conventional soil, frozen soil)

water content

moisture distribution

Dynamic Migration of Water - Distribution and Spatial Position Migration

Soil freeze-thaw mechanism and determination of unfrozen water content

Ø Cement concrete

Porosity and moisture distribution

Moisture content and moisture content at different levels

Pore size distribution and pore size distribution at different levels

Monitoring of cement hydration/solidification process

Formula/admixture/maintenance research

Acid/salt corrosion/mechanical damage and crack development

Ø Rock

porosity

Moisture content and moisture content at different levels

Pore size distribution and pore size distribution at different levels

Temperature/pressure/fluid multi field coupling experiment

Imaging of rock fracture development

Research on rock blasting/stress/freeze-thaw/acid/salt erosion damage

Application case: