Detection system for double-sided shearing mechanical properties of geocell for railway construction

The utility model relates to railway construction test equipment, and discloses a system for detecting the double-sided shearing mechanical property of an earthwork standard room for railway construction, which comprises a first test box assembly, a second test box assembly and a third test box assembly, the first test box assembly and the third test box assembly are each internally provided with a hollow structure capable of containing test filler and are installed on the bearing platform through a limiting mechanism, and a vertical loading mechanism is arranged above the third test box assembly; the second test box assembly is arranged between the first test box assembly and the third test box assembly through a horizontal loading mechanism, the horizontal loading mechanism can push the second test box assembly to move in the horizontal direction, and a to-be-detected sample in the second test box assembly can make contact with the test filler on the upper side and the test filler on the lower side respecti