Comprehensive evaluation of engineering properties of several kinds of traditional modified soils and their application in the restoration of earthen sites
(1. Institute of Geotechnical Engineering，Xi'an University of Technology，Xi'an，Shaanxi 710048，China；2. Shaanxi Engineering Technology Research Center for Urban Geology and Underground Space，Xi?an，Shaanxi 710068，China；3. Shaanxi Hydrogeolog Engineering Geology and Environment Geology Survey Center，Xi?an，Shaanxi 710068，China，4. School of Civil Engineering，
Xi?an University of Architecture and Technology，Xi'an，Shaanxi 710055，China)
Abstract：The restoration technology of earthen sites is a hot issue in the protection engineering. Based on laboratory test，model test and analytic hierarchy process(AHP) theory，the engineering characteristics of traditional modified soil(MS) and its suitability for earthen sites restoration were studied. The results showed that：(1) the engineering properties of the MS were improved by adding a certain proportion of sticky rice，cementitious material or fiber material to the plain soil(PS). The shear strength，impermeability and durability of PS are increased by 1.3‐3.5 times，3‐1 650 times and 1.3‐12.5 times，respectively. (2) Six indexes for comprehensive suitability evaluation of various kinds of MSs during the restoration of earthen sites were put forward，which are the safety，durability，anti-seepage，hygroscopic and desiccant characteristics，economy，construction difficulty. It indicates that the suitability of MS with adding sticky rice and mortar is the better than that of the lime，plant fiber materials. The cement-modified soil should not be used in earthen sites restoration.
朱才辉1，2，3，石 卫2，3，李鑫磊1，陈 平4，邓国华1. 几类传统改性土的工程特性综合评价及在土遗址修复中的应用[J]. 岩石力学与工程学报, 2022, 41(S1): 3033-3043.
ZHU Caihui1，2，3，SHI Wei2，3，LI Xinlei1，CHEN Ping4，DENG Guohua1. Comprehensive evaluation of engineering properties of several kinds of traditional modified soils and their application in the restoration of earthen sites. , 2022, 41(S1): 3033-3043.
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2022, Vol. 41 
