贯入法原位测试夯土遗址表面强度的适用性和方法研究  

Application and methodology of the penetration resistance method for in-situ testsof the surface strength of rammed earthen sites

作　　者：毛维佳[1,2,3] 孙满利 梁楚昕[1,2,3] 崔梦鹤 白云峰 裴强强 MAO Weijia;SUN Manli;LIANG Chuxin;CUI Menghe;BAI Yunfeng;PEI Qiangqiang(China-Central Asia“the Belt and Road”Joint Laboratory on Human and Environment Research(Northwest University),Xi’an 710127,China;Key Laboratory of Cultural Heritage Research and Conservation(Northwest University),Ministry of Education,Xi’an 710127,China;School of Cultural Heritage,Northwest University,Xi’an 710127,China;Shaanxi Academy of Archaeology,Xi’an 710109,China;Hohhot Cultural Relics Conservation and Archaeological Research Center,Hohhot 010030,China;Dunhuang Academy,Jiuquan 736200,China)

机构地区：[1]中国-中亚人类与环境“一带一路”联合实验室(西北大学),陕西西安710127 [2]文化遗产研究与保护技术教育部重点实验室(西北大学),陕西西安710127 [3]西北大学文化遗产学院,陕西西安710127 [4]陕西省考古研究院,陕西西安710109 [5]呼和浩特市文物保护与考古研究中心,内蒙古呼和浩特010030 [6]敦煌研究院,甘肃酒泉736200

出　　处：《文物保护与考古科学》2023年第5期66-74,共9页Sciences of Conservation and Archaeology

基　　金：国家重点研发计划(2020YFC1522200)资助。

摘　　要：表面强度是夯土遗址重要的测试指标和加固效果的评价依据。常规的强度测试方法受到取样和运输等因素的制约,不适用于作为夯土遗址如夯土补筑、表面加固等措施的效果评估方法。贯入法是成熟的砂浆强度检测方法,通过改装砂浆贯入仪降低了仪器量程;制作夯土样、室内试验验证了测试的较高精度;标定了夯土样贯入深度测量值与抗压强度的幂函数关系,确定了测强曲线。在夯土遗址现场开展原位测试,分析了布点密度对测试结果精度的影响,并利用测强曲线推算了测试区域的表面抗压强度。本研究提出了一套集“仪器改装-室内标定-现场高密度布点测试”为一体的夯土遗址表面强度评估方法,为土遗址加固效果的评价体系建设提供了参考价值。The surface strength of rammed earthen sites is an important testing index and a basis for evaluation of the reinforcement effect.Restricted by factors such as sampling and transportation,the conventional strength test method is not applicable to the effect evaluation of measures like rammed earth filling and surface reinforcement.Since the penetration resistance method is a common mortar strength testing method,the mortar penetrometer was modified to reduce the measuring range.Sampling and indoor experiments were conducted,proving high accuracy of penetration depth values,and finding the power function relationship between the measured penetration depth and the compressive strength of rammed earth samples.In the in-situ tests,influences of point density on the accuracy of measurement results were analyzed,and the average compressive strength of the tested area was calculated using the strength measurement curve.This research proposes a set of testing methods combining instrument modification,indoor calibration and in-situ multi-point measurement,which is suitable for evaluating the surface strength of rammed earth sites.It provides a reference for the construction of an evaluation system for the reinforcement effect of rammed earthen sites.

关 键 词：夯土遗址 贯入法 表面强度 原位测试 

分 类 号：K878[历史地理—考古学及博物馆学] K854.3[历史地理—历史学]