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为了弄清凝结和蒸发对古坟石室中金属锈蚀等埋藏物保存的影响以及高浓度CO2和低浓度O2对埋藏物化学反应的影响，在丘陵地区建造了一个模拟石室的地下空间，并通过测量人工石室的内外环境条件，结果如下：1)自天花板石头室的温度低于地板在冬天,发生冷凝,2)室的相对湿度一直是100%,这是更高,在Tsugeyama古墓,3)室中的O2浓度3 - 4%高于室外空气的二氧化碳浓度是3%左右,这些结果几乎是一样的Tsugeyama古墓,4)可以看到生锈的金属样品在几个月后。

In order to clarify the influences that condensation and evaporation give on the conservation of the buried properties such as metal rust and the influence that high CO2 and low O2 concentrations give on the chemical reactions of the buried properties in the stone chamber of a tumulus, a underground space simulating a chamber was constructed in a hilly area, and by measuring both the inside and outside environmental conditions of the artificial stone chamber, the followings results were obtained.1) Since the ceiling temperature of the stone chamber was lower than that of the floor in the winter, condensation occurred there, 2) the relative humidity in the chamber was always 100%, which was higher that in Tsugeyama tumulus, 3) the O2 concentration in the chamber was by 3 to 4 % higher than that of the outdoor air, and the CO2 concentration was about 3%, These results were almost the same as those in Tsugeyama tumulus, 4) the rust could be seen on the metal samples in a few months.