基于Origin的土遗址防雨水侵蚀调控机理研究——以晋阳古城西城墙为例  

Research on the Rainwater Erosion Prevention Mechanism of Earthen Sites with Origin——Taking the Western Wall of Jinyang Ancient City as an Example

作　　者：尚瑞华 韩鹏举[2] 谷瑞芳 程驰 吴雅娟 刘伟伟 SHANG Ruihua;HAN Pengju;GU Ruifang;CHENG Chi;WU Yajuan;LIU Weiwei(College of Architecture,Taiyuan University of Technology,Taiyuan 030024,China;College of Civil Engineering,Taiyuan University of Technology,Taiyuan 030024,China;College of Water Resources Science and Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Jinci Garden Center,Taiyuan Cultural Relics Protection Research Institute,Taiyuan 030025,China;Taiyuan Institute of Cultural Relics and Archaeology,Taiyuan 030012,China)

机构地区：[1]太原理工大学建筑学院,太原030024 [2]太原理工大学土木工程学院,太原030024 [3]太原理工大学水利科学与工程学院,太原030024 [4]太原市文物保护研究院晋祠园林中心,太原030025 [5]太原市文物保护研究院文物考古研究院,太原030012

出　　处：《太原理工大学学报》2024年第4期686-695,共10页Journal of Taiyuan University of Technology

基　　金：山西省基础研究计划资助项目(202303021212060);山西省文物科技资助项目(2023KT15)。

摘　　要：【目的】通过Origin软件分析,了解晋阳古城西城墙裸土土遗址与草本植物覆盖土遗址的防雨水侵蚀机理及最终效果。【方法】通过Origin软件分析原位人工模拟降雨实验数据的方法,对比植物生长状况对土遗址坡面产流、产沙效果的影响作用。【结果】产流前降雨截留量Q_(0)与新生草产流起始时间T_(0)呈负相关,且Q_(0)遵循枯草>新生草>裸土;新生草产沙系数C_(sy)、产沙强度I_(sy)与降雨强度呈显著正相关,产流、产沙效果遵循规律为裸土>枯草>新生草;裸露土遗址通过形成泥皮面层的方式,保证土体内部少受雨水浸润,适用于干旱气候区;草本植物通过强化土遗址抗冲性,减少土体表面冲刷,适用于半干旱半湿润气候区。【结论】Origin软件分析证实,草本植物提高土遗址抗冲性效果显著,草本植物覆盖土遗址现象利于山西本地土遗址保护,但当极端持续强降雨发生在9-10月间时,草本植物覆盖土遗址是否适用仍待继续研究。【Purposes】 Origin software was adopted to study the mechanism and final effects of rainwater erosion prevention of Earthen Sites with bare soil and herbs in Western Wall of Jinyang Ancient City. 【Methods】 The data analysis method of field artificial simulation rainfall experiment through the software of Origin was used to compare the effects of the underlying surface layer on the runoff and sediment producing processes on the slope surface at different times. 【Findings】 Pre-runoff interception Q_(0) of Fresh Herbs was negatively correlated with runoff starting time T_(0). And Q_(0) was in descending order of Dry Herbs, Fresh Herbs, and Bare Soil. Sediment producing coefficient C_(sy) and sediment producing intensity I_(sy) of Fresh Herbs were positively correlated with rainfall intensity I_(rf). Runoff coefficients C_(ro) and C_(sy) were in descending order of Bare Soil, Dry Herbs, and Fresh Herbs. By forming a mud surface, exposed earthen sites were less affected by rainwater infiltration, making them suitable for arid climate zones. By strengthening anti-erosion, herbal earthen sites reduced soil surface erosion, making them suitable for semi-arid and semi-humid climate areas. 【Conclusions】 Origin analysis confirms that herbal plants have a significant effect on improving the anti-erosion of earthen sites. The phenomenon of herbs covering is beneficial to the protection of local earthen sites in Shanxi. However, when extreme sustained heavy rainfall occurs between September and October, further research is needed to determine whether herbal plants are suitable or not for covering earthen sites.

关 键 词：ORIGIN软件 土遗址 强降雨 侵蚀 雨水 草本 

分 类 号：TU986.5[建筑科学—城市规划与设计]