Mechanical properties and temperature field of inclined frozen wall provide reliable basis for solving technical difficulties of inclined frozen mine construction in the water-rich sand stratum. Taken the inclined frozen engineering in northern Shaanxi as an example

thermo-physical and mechanical properties of frozen sand were studied by the combination of laboratory tests

field measurement and the finite element simulation. The variation and causes of freezing pressure in inclined frozen sand well were analyzed and the measured temperatures were compared with numerical results obtained in thermometer holes. It is found that the thermal conductivity of frozen sand initially increases and then decreases with the decrease of temperature

and the internal friction angle of frozen sand was greatly influenced by freezing temperature. The freezing pressure was significantly affected by the freezing temperature

shaft depth and groundwater. The effect of the concrete hydration heating on the frozen wall was in the range of 460 and475 mm. The results provide evidence for the optimization design and stability of inclined mine construction by frozen in the water-rich sand stratum.