The data of plastic geogrid such as yield stress

elongation of yield

tensile force relating to different tensile stretches etc.

were obtained from the tensile test under low temperature. Through analyzing the test results

it is found that 1) The tensile characteristics of plastic geogrid enhance obviously under low temperature. 2) Under low temperature

the larger the cross-sectional area of ribbing is

the wider the increasing extent of tensile force is; while more obvious the decreasing trend of the elongation of yield. Contrarily

with the decreasing of the cross-section area of ribbing

the effect of temperature reducing on tensile force and elongation of yield is weakened gradually. 3) Compared with the unfrozen sample

the tensile characteristics change of the plastic geogrid suffered freeze-thaw cycling is not obvious.