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（1 河南大學(xué)土木建筑學(xué)院， 開封 475004； 2 河南華磊古建集團(tuán)有限公司， 鄭州 451281）
［摘要］遺址土保護(hù)和修復(fù)是不可移動文物研究的難點(diǎn)和重點(diǎn)。以共城遺址為研究對象，對其破壞的現(xiàn)狀進(jìn)行調(diào)研，并進(jìn)行了分類總結(jié)；選取典型部位夯土，進(jìn)行了基本物理指標(biāo)和力學(xué)測試；利用X射線衍射儀和掃描電鏡對城墻內(nèi)外部的夯土進(jìn)行了化學(xué)成分和微觀結(jié)構(gòu)分析。結(jié)果表明，外界的干濕及凍融循環(huán)造成城墻內(nèi)外表面夯土性能差異較大。最后，針對共城遺址修復(fù)和使用時(shí)可能存在的工況，采用數(shù)值模擬方法，對現(xiàn)存的4個(gè)危險(xiǎn)段的4個(gè)工況進(jìn)行了穩(wěn)定性分析。分析結(jié)果表明現(xiàn)有的遺址穩(wěn)定性較好，但隨著遺址土含水率的提高，共城遺址的穩(wěn)定性降低。
［關(guān)鍵詞］共城遺址；遺址土；文物保護(hù)；微觀結(jié)構(gòu)；數(shù)值模擬；修復(fù)保護(hù)
中圖分類號：TU43文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2021)04-0051-07
Study on soil properties and stability of Gongcheng Site in Weihui city
WANG Siyuan1, YUE Jianwei1, WANG Yongfeng1, LI Jiale1, SU Guangwei2, ZHAO Limin1, KONG Qingmei1, WANG Weizhi1
（1 School of Civil Engineering and Architecture， Henan University， Kaifeng 475004， China；2 Henan Hualei Ancient Construction Group Co., Ltd.， Zhengzhou 451281， China）
Abstract:The protection and restoration of site soil are the difficulties and emphases in the study of immovable cultural relics. Taking the Gongcheng Site as the research object, the current situation of its destruction was investigated and classified; The typical rammed soil was selected to carry out basic physical indexes and mechanical tests; The chemical composition and microstructure of the rammed soil inside and outside the city wall were analyzed by X-ray diffraction and scanning electron microscope. The results show that the performance of rammed soil on the inner and outer surface of the city wall is greatly different due to the external dry-wet and freeze-thaw cycles. Finally, according to the possible working conditions of Gongcheng Site during the restoration and use, numerical simulation methods were used to do the stability analysis of four existing dangerous sections under four working conditions. The analysis results show that the existing sites have good stability, but with the increase of the water content of the site soil, the stability of the Gongcheng Site decreases.
Keywords:Gongcheng Site;ruin soil;preservation of cultrual relics;microstructure;numerical simulation;reinforced protection
*河南省科技廳基礎(chǔ)與前沿研究項(xiàng)目（162300410012），河南省教育廳科學(xué)技術(shù)研究重點(diǎn)項(xiàng)目（13A560048，14B560019）。
作者簡介：王思遠(yuǎn)，碩士研究生，Email:15736879552@163.com;通信作者：岳建偉，博士，教授，Email:yjwchn@126.com。
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