Frozen earth area engineering structure foundation horizontal load reaction test device

The utility model relates to a horizontal load reaction test device for an engineering structure foundation in a frozen earth area. The horizontal load reaction test device comprises a combined box body, an environment cooling system, a loading system and a data test system, the device is characterized in that (1) through circulation of refrigerating fluid between a cooling pipe arranged in a soilbody and external refrigerating equipment, soil body cooling and freezing are achieved, and the frozen soil environment can be effectively simulated; (2) a large-volume and large-size combined box body is adopted, a plurality of measuring points of the sensors can be arranged in the box body, the defects of small size of a soil sample and limited functions of a test system in the existing model test are effectively overcome, the combined box body has the functions of splitting and combining, the mobile transportation is convenient, and the indoor model test efficiency is effectively improved.And 3, horizontal and ver