天水大地湾遗址F901裂隙灌浆工艺试验研究  

An experimental study of crack grouting technique of house no.F901 at the Dadiwan site in Tianshui

作　　者：杨韬[1] 杨志强 杨金建[1] 王旭阳 赵鸿亮 Yang Tao;Yang Zhiqiang;Yang Jinjian;Wang Xuyang;Zhao Hongliang

机构地区：[1]敦煌研究院保护研究所,甘肃敦煌730030 [2]麦积山石窟艺术研究所,甘肃天水741020

出　　处：《文博》2022年第4期83-88,共6页

摘　　要：大地湾遗址是仰韶时期的重要遗存之一。在自然力作用下,墙体裂隙发育,局部剥离塌落,严重威胁着大地湾遗址F901的长久保存。本文以制作模拟试样筛选适合于遗址本体保护的加固材料和比例。通过干燥时间、抗压强度、线性收缩率、析水性试验等发现:料礓石改性土与当地土按1:10配比,具有较好的抗压强度,线性收缩率、干燥时间、析水性适宜,现场保护效果良好,为遗址保护材料筛选试验积累了经验,可为其他类似的保护修复提供参考和技术指导。The Dadiwan site is one of the most important Neolithic sites in the Gansu region.Due to natural weathering processes,the earthen walls at the site develop cracks and some parts of the walls peel off.These severe weathering processes jeopardize the long-term conservation of the house no.F901 at the Dadiwan site.Through a simulation and screening research,this article develops a recipe that is suitable to be used as the reinforcement material in the protection of the main body of the site.Experimental studies of drying time,compressive strength,and water permeability have shown that the recipe of a modified calcareous soil and the local soil at a ratio of 1:10 can achieve an optimal result of on-site protection in several aspects including good compressive strength,linear shrinkage rate,drying time,and water permeability.This research accumulates good experience for the selection of on-site protection material at archaeological sites,and provides a reference and technical support for the conservation and reinstallation of other similar archaeological sites.

关 键 词：大地湾遗址 F901 裂隙 灌浆 

分 类 号：K878[历史地理—考古学及博物馆学]