敦煌莫高窟第108窟西壁岩體內溫溼度變化規律研究=A Study on the Variation Laws of Temperature and Relative Humidity in the Rock of the West Wall in Mogao Cave 108, Dunhuang

林波; 王旭東 (著)=Wang, Xu-dong (au.); 郭青林 (著)=Guo, Qing-lin (au.); 楊善龍 (著)=Yang, Shan-long (au.); 陳雨; 李鳳潔

Author

林波 ; 王旭東 (著)=Wang, Xu-dong (au.) ; 郭青林 (著)=Guo, Qing-lin (au.) ; 楊善龍 (著)=Yang, Shan-long (au.) ; 陳雨 ; 李鳳潔

Source

敦煌研究=Dunhuang Research

Volume

n.1 (總號=n.137)

Date

2013.02

Pages

86 - 91

Publisher

敦煌研究編輯部

Publisher Url

http://www.dha.ac.cn/

Location

蘭州, 中國 [Lanzhou, China]

Content type

期刊論文=Journal Article

Language

中文=Chinese

Keyword

監測裝置; 莫高窟; 溫濕度; 巖體

Abstract

敦煌莫高窟保存有大量精美的壁畫,隨著時間的推移,一些洞窟的壁畫產生了酥堿、起甲、空鼓等病害。大量研究表明,鹽分運移和富集是導致壁畫產生病害的主要因素,而巖體內水汽梯度和溫度梯度的存在則為鹽分的運移提供了先決條件。為尋找出溫度和相對濕度在巖體內部的變化規律以及它們之間的相互影響與制約關系,我們在第108窟西壁壁畫脫落處鉆孔安裝了溫濕度監測設備,開展洞窟巖體內溫濕度的長期監測。本文以莫高窟第108窟西壁巖體內最近3年的溫濕度實測數據為依據,通過對溫濕度數據采用橫向、縱向對比,得出如下結論:巖體內淺部區域,在溫度增高的方向上,水汽呈減少的趨勢。在垂直和水平方向上,溫度變化呈周期性,相對濕度則由表向里逐漸升高,且在一定深度內達到穩定。本次研究探索了洞窟巖體內溫度對相對濕度的影響以及溫濕度的變化規律,為進一步分析壁畫病害機制和采取防范措施提供了科學依據。

Lots of beautiful wall paintings have been preserved in the Mogao Grottoes.With the passage of time,some kinds of deterioration have appeared in some caves,such as the disruption,flaking,and detachment.Many studies show that salt migration and enrichment are the causes of the deterioration in wall paintings,while moisture and temperature in the rock determine how the salt migrates.To find out the variation laws and the relationship between temperature and relative humidity in the rock,temperature and relative humidity equipment has been installed in the area where wall paintings have fallen off in Mogao Cave 108 for long-term monitoring.On the basis of collected data on temperature and relative humidity of the western wall in Mogao Cave 108,this paper presents a lateral and longitudinal comparison and comes to the conclusion that in the shallow area of the surrounding rock,as the temperature increases,the water vapor shows a downward trend.In the vertical and horizontal directions,the temperature takes on periodical changes.The relative humidity increases from inside toward the outside of the rock,and then remains stable at a certain depth.This paper presents a study of the influences of temperature on relative humidity and their correlation in the rocks inside the cave,which might be able to provide a scientific basis for determining the deterioration mechanism and the preventive measures for the wall paintings.

ISSN

10004106 (P)

	Search Criteria	Browse