西北地区气象因子对夯土遗址裂隙发育的影响

For the analysis the rammed site's fracture development under effect of meteorological environment of northwestern China, the paper based on the various rammed sites' engineering practices which are Han or Ming dynasty and distributed in Gansu and Qinghai province nearly 10 years and preliminary analysis the relationship between meteorological factors such as rainfall, evaporation, temperature, sunshine and fracture development. The analysis result shows that: Fracture development rate, the average fracture length and the maximum fracture length will tend to increase with the increasing of rainfall, decreasing of evaporation, reducing of temperature and decreasing of sunshine, but the average fracture width and the maximum fracture width will tend to decrease with them, meanwhile, there is threshold in the middle.