论文部分内容阅读
易溶盐反复结晶产生的体积膨胀,会对土遗址特别是土遗址表面迹象造成破坏,因此,以易溶盐的含量多少判断其干预时机就显得尤为重要。本研究就易溶盐含量对秦陵陪葬坑土遗址的影响,开展安全含盐量问题的探究。将Na2SO4/Na Cl质量比为1∶1混合盐掺入重塑土样中,经气候箱老化后,利用超景深显微镜测定盐胀面积判断土样被破坏的程度,结果表明含盐超过0.1%,就会导致盐胀面积突然增加,这一指标的获得以及本次实验研究中提出的利用超景深显微镜测定土壤表面盐胀面积评估盐害的方法,为土遗址开展进一步的预防性保护工作提出了初步依据和新的研究方法。
The volumetric expansion caused by the recrystallization of soluble salt will destroy the surface appearance of the earthy site, especially the earthy site. Therefore, it is very important to judge the timing of the intervention by the content of the soluble salt. In this study, the impact of soluble salt content on the site of the burial pit of Qin Tombs was explored to explore the issue of safe salt content. When Na2SO4 / Na Cl mass ratio is 1: 1 mixed salt into the remodeled soil samples, after the weather box is aged, the depth of salt expansion is measured by using the depth of field microscope to determine the degree of destruction of the soil samples. The results show that when the salt content exceeds 0.1% , It will lead to a sudden increase in the area of salt expansion. The method of obtaining this indicator and evaluating salt damage by using the depth of field microscope to determine the surface area of salt expansion in the experimental study is proposed for the further preventive protection of the soil site The initial basis and new research methods.