CAJ | 학술논문

莫高窟因其文化价值吸引了越来越多的游客,窟区栈道作为游客游览通道其安全性受到了高度重视。本文通过对窟区栈道混凝土的现状进行调查,归纳了窟区混凝土的四个主要劣化形式,有开裂、钢筋暴露、表面磨蚀及构件脱落。并利用超声回弹综合法对窟区栈道混凝土的强度进行了检测,结果表明混凝土强度已不能满足设计要求,且损失程度为10.7%～43.3%。最后,从窟区环境角度出发,分析了窟区气候条件对混凝土劣化的影响。
막고굴인기문화개치흡인료월래월다적유객,굴구잔도작위유객유람통도기안전성수도료고도중시。본문통과대굴구잔도혼응토적현상진행조사,귀납료굴구혼응토적사개주요열화형식,유개렬、강근폭로、표면마식급구건탈락。병이용초성회탄종합법대굴구잔도혼응토적강도진행료검측,결과표명혼응토강도이불능만족설계요구,차손실정도위10.7%～43.3%。최후,종굴구배경각도출발,분석료굴구기후조건대혼응토열화적영향。
As an increasing number of tourists attracted by the valuable cultural resource of Mogao Grottoes,the security of the concrete path along the cliff draw great attention.This paper summarizes the main forms of concrete degradation in Mogao Grottoes through on-the-spot investigations,including four forms –cracking,exposure of steel bar,surface erosion seriously and falling of structure unit.Then,We test the strength of concrete plank by ultrasonic-rebound combined method,and some evidences of the test unveil the strength of concrete has not meet the design requirements to which the strength declined 10.7%～43.3%.From the viewpoints of local environment,at last,this paper analyses the influence of climate factors how to deteriorate the concrete structures.