Soil Ruins Site Museum Environment And Its Bulk Water Unidirectional Evaporation Factors

Site Museums all have desiccation, salinization, desertification, disease problems of local surface salt concentration. I put forward the concept of unidirectional evaporation, consider that only in site museum environment, mainly cultural relic diseases is caused by unidirectional evaporation, that means soilwater goes oneway-out, not in a circulation.Took the Hanyang Mausoleum for an example, we studied reasons cause soil water loss,the evaporation phenomenon and evaporation rate. I discussed the major factors influencing the evaporation, including the relationship among the temperature and humidity of the environment and the soil water moisture through laboratory simulation study to provide guidance to keep the Site Museum of cultural relics preservation and slow down evaporation. At last, I designed a simulation experiment using soil samples with different moisture content to evaporation, to find safe soil moisture content as the maintenance of safe site museums clay moisture, provide ideas for future conservancy of cultural relic by water keeping or inflowing.Research results show that:even in Hanyang Mausoleum building witch is considered seal and stable, soil water evaporation still can not be sustained,soil site is keeping on desiccating; the high humidity of the air can not inflow the site soil water (not exclude air condensation water), exclude other external water replenishment, unidirectional evaporation is the main course of soil moisture content decreased, result in clay desiccation, salinization, desertification and other diseases; Simulation experiment concluded:temperature and the exchange rate between indoor and outdoor air are the main factors influencing soil evaporation, air humidity is on the minimal impact.