| 莫高窟砂岩有压吸水特性及渗流作用试验研究 |
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| 引用本文： | 郝耐,王永亮,张秀莲,秦新展,何满潮.莫高窟砂岩有压吸水特性及渗流作用试验研究[J].科学技术与工程,2018,18(24). |
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| 作者姓名： | 郝耐 王永亮 张秀莲 秦新展 何满潮 |
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| 作者单位： | 中国矿业大学(北京)深部岩土力学与地下工程国家重点实验室;中国矿业大学(北京)力学与建筑工程学院;中国矿业大学(北京)煤炭资源与安全开采国家重点实验室 |
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| 摘 要： | 为研究液态水渗流作用对莫高窟围岩风化产生的影响,采用深部软岩水理作用智能测试系统进行莫高窟砂岩试样的有压吸水试验,并对砂岩有压吸水特性与无压吸水特性进行对比分析。试验结果表明,两种吸水模式下,试样吸水后最终达到的饱和吸水率相近,但有压吸水的平均吸水速率是无压吸水的11倍。相比于毛细作用,水分的渗流作用对于莫高窟围岩的风化作用更为显著。试验技术为评价莫高窟围岩风化程度提供了可行的手段。
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| 关 键 词： | 莫高窟砂岩 深部软岩水理作用智能测试系统 有压吸水试验 渗流作用 |
| 收稿时间： | 2018/3/2 0:00:00 |
| 修稿时间： | 2018/4/23 0:00:00 |
Experimental Study on Seepage Effect in Water Adsorption with Head Pressure of Sandstone of Mogao Grottoes, Dunhuang, China |
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| Hao Nai,and.Experimental Study on Seepage Effect in Water Adsorption with Head Pressure of Sandstone of Mogao Grottoes, Dunhuang, China[J].Science Technology and Engineering,2018,18(24). |
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| Authors: | Hao Nai and |
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| Institution: | State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing);School of Mechanics & Civil Engineering, China University of Mining and Technology(Beijing),,,, |
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| Abstract: | In order to study the seepage effect of liquid water on weathering of surrounding rocks of Mogao Grottoes, the intelligent test system for water adsorption of deep soft rock was applied to carry out water adsorption test of sandstone samples with head pressure, and the test results of water adsorption of sandstone with head pressure and without head pressure were compared and analyzed. The experimental results show that the saturated water content of the two water absorption modes is similar, however the average water adsorption rate with head pressure is 11 times than that without head pressure. Compared with the capillary effect, the seepage effect plays a more significant role in weathering of surrounding rock of the Mogao Grottoes. The test technique provides a feasible means to evaluate the weathering degree of the surrounding rock of Mogao Grottoes. |
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| Keywords: | sandstone in Mogao Grottoes intelligent test system for water-rock interaction water absorption test with pressure permeability |
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