长江科学院院报

长江科学院院报 >

2015 , Vol. 32 >Issue 12: 55 - 59

DOI: https://doi.org/10.11988/ckyyb.20140390

岩土工程

PS对克孜尔砂岩的加固效果研究

  • 严绍军 ,
  • 叶梦杰 ,
  • 陈鸿亮 ,
  • 皮 雷 ,
  • 李 伟
展开
  • 中国地质大学(武汉) 工程学院,武汉 430074
严绍军(1973-),男,四川绵竹人,副教授,主要从事不可移动岩土文物保护研究工作,(电话)027-67883507

收稿日期: 2014-05-11

  网络出版日期: 2015-12-11

基金资助

国家自然科学基金项目(107KH136514)

收起

Effect of Potassium Silicate on the Reinforcement of Kizil Sandstone

  • YAN Shao-jun ,
  • YE Meng-jie ,
  • CHEN Hong-liang ,
  • PI Lei ,
  • LI Wei
Expand
  • Faculty of Engineering, China University of Geosciences, Wuhan 430074, China

Received date: 2014-05-11

  Online published: 2015-12-11

Fold

摘要

克孜尔石窟位于新疆库车县,是藏传佛教传入中原的中间地带。石窟主要开凿在绝壁砂岩上,由于长时间的风吹日晒,加上位于活动的地震带上,近年来石窟多处坍塌,常有坠石从高处坠落,影响文物的价值并对游客的人身安全造成一定的影响。为了探究PS溶液对克孜尔砂岩的加固机理,首先对砂岩进行了XRD矿物分析,然后设计了不同浓度的PS溶液分别加固砂岩。通过测量不同浓度加固过程中质量、体积和波速的变化过程,并对比前后砂岩微观结构变化来研究PS对克孜尔石窟砂岩的加固机理及规律。结果表明:PS对克孜尔砂岩加固作用效果明显,其中浓度为20%的PS溶液加固效果最好;随着PS溶液逐渐凝固,波速升高;PS在砂岩颗粒与颗粒之间起着胶结作用,增强了砂岩的抗压强度。

关键词： 砂岩; 克孜尔石窟; PS溶液; 加固; 力学强度; 波速

本文引用格式

严绍军 , 叶梦杰 , 陈鸿亮 , 皮 雷 , 李 伟 . PS对克孜尔砂岩的加固效果研究[J]. 长江科学院院报, 2015 , 32(12) : 55 -59 . DOI: 10.11988/ckyyb.20140390

Abstract

Kizil grottoes are mainly digged on the precipice of sandstone in Kuqa of Xinjiang autonomous region, which is the middle route of Tibetan Buddhism being brought into China. Due to long-term weathering and active earthquake, collapses of grottoes have occurred frequently in recent years, detrimental to the value of cultural relics and safety of tourists. In order to explore the mechanism of reinforcing Kizil sandstone by PS (potassium silicate) solution, we first conducted XRD(X-ray diffraction) mineral analysis of sandstones, and then designed PS solutions of different concentrations to strengthen the sandstone respectively. We measured the variations of quality, volume, wave velocity in the presence of PS solutions of different concentrations, and compared the changes of sandstone’s microstructure to research the mechanism and regularity of reinforcement. Results show that the reinforcement effect is obvious, and PS solution of 20% concentration has the best effect; as the PS solution gradually solidifies, wave velocity increases by a large margin; PS plays a cementation role among particles, which enhances the compressive strength of sandstone.

Key words： sandstone; Kizil grottoes; PS solution; reinforcement; mechanical strength; wave velocity

参考文献

[1] 苏伯民,李最雄,胡之德. PS与土遗址作用机理的初步探讨[J]. 敦煌研究,2000, (1):30-35. (SU Bo-min, LI Zui-xiong, HU Zhi-de. Preliminary Discussion on the Mechanism of PS Acting on Soil Relics[J]. Journal of Dunhuang Research, 2000, (1): 30-35. (in Chinese))
[2] 邵明申. PS加固对非饱和遗址土的渗透特性影响研究[D]. 兰州: 兰州大学,2010. (SHAO Ming-shen. Effect of PS Reinforcement on the Permeability Characteristics of Unsaturated Soil Relics[D]. Lanzhou: Lanzhou University, 2010. (in Chinese))
[3] 和法国. 交河故城崖体裂隙灌浆加固研究[D]. 兰州:兰州大学,2009. (HE Fa-guo. Grouting Reinforcement of Fissures in the Cliff of Jiaohe Ancient City[D]. Lanzhou: Lanzhou University, 2009. (in Chinese))
[4] 李最雄,邵明申,陈 锐. PS加固对非饱和遗址土的渗透特性影响研究[J]. 岩土力学,2011, 32(7):2039-2044. (LI Zui-xiong, SHAO Ming-shen, CHEN Rui. Impact of PS on Permeability of Unsaturated Ruins Clay[J]. Rock and Soil Mechanics, 2011, 32(7): 2039-2044. (in Chinese))
[5] 张得煊,王同瑞,王旭东,等. 经PS材料加固后遗址土体热传导性能的试验研究[J]. 岩石力学与工程学报,2011, 30(1):202-207. (ZHANG De-xuan, WANG Tong-rui, WANG Xu-dong, et al. Experimental Study of the Heat Conduction Properties of Earthen Ruins Soil Reinforced by Potassium Silicate Materials[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(1): 202-207. (in Chinese))
[6] 严绍军,方 云,刘俊红.可溶盐对云冈石窟砂岩劣化试验及模型建立[J]. 岩土力学, 2013,34(12): 3410-3416.(YAN Shao-jun, FANG Yun, LIU Jun-hong. Deterioration Experiment with Soluble Salt on Sandstone of Yungang Grottoes and Its Model Creation[J].Rock and Soil Mechanics, 2013,34(12): 3410-3416.(in Chinese))
[7] 张晓平,王思敬,李 黎,等. 硅酸钾材料加固土遗址耐风蚀颗粒元模拟分析[J]. 岩土力学,2012, 33(11):3465-3471.(ZHANG Xiao-ping, WANG Si-jing, LI Li, et al. Particle Simulation on the Effect of Potassium Silicate Reinforcement of Ancient Earthen Site Soil to Reduce Wind Erosion[J]. Rock and Soil Mechanics, 2012, 33(11): 3465-3471.(in Chinese))
[8] 李最雄,王旭东. 榆林窟东崖的岩体裂隙灌浆及其效果的人工地震检测[J]. 敦煌研究,1994,(2):156-170. (LI Zui-xiong, WANG Xu-dong. Artificial Seismic Detection on the Effect of Rock Fracture Grouting in the East Cliff of Yulin Grotto[J]. Journal of Dunhuang Research, 1994, (2): 156-170.(in Chinese))
[9] 赵海英,李最雄,韩文峰,等. PS材料加固西北干旱区土遗址试验研究[J]. 湖南科技大学学报(自然科学版),2008, (1):45-49. (ZHAO Hai-ying, LI Zui-xiong, HAN Wen-feng, et al. Reinforcement of Earthen Ruins in Arid Area of Northwestern China by PS Materials[J]. Journal of Hunan University of Science and Technology (Natural Science), 2008, (1): 45-49. (in Chinese))
[10]严绍军,谭松娥,刘俊红,等.酸对云冈石窟砂岩的劣化作用实验研究[J]. 长江科学院报,2013, 30(9):64-68(YAN Shao-jun, TAN Song-e, LIU Jun-hong, et al. Acid-induced Degradation of Sandstone in Yungang Grottoes[J]. Journal of Yangtze River Scientific Research Institute, 2013, 30(9): 64-68.(in Chinese))
[11]王思敬,王彦兵,邵明申,等. PS溶液渗透对非饱和土的增强效应研究[J]. 工程地质学报,2011, (2):219-224.(WANG Si-jing, WANG Yan-bing, SHAO Ming-shen, et al. Research on Unsaturated Soil Strengthening Effect of PS Filtration[J]. Journal of Engineering Geology, 2011, (2): 219-224.(in Chinese))
[12]邵明申,李最雄. PS对非饱和重塑黏土的土-水特征曲线的影响[J]. 中南大学学报(自然科学版),2011, (5):1432-1436. (SHAO Ming-shen, LI Zui-xiong. Effect of PS on Soil-water Characteristic Curve of Remolded Unsaturated Clay[J]. Journal of Central South University (Natural Science), 2011, (5): 1432-1436. (in Chinese))
[13]李 黎,陈 锐. 经PS加固土遗址水饱和强度及加固效果的环境影响研究[J] .岩石力学与工程学报,2009, 28(5):1074-1080. (LI Li, CHEN Rui. Saturation Strength of Earthen Ruins Reinforced by Potassium Silicate and Influence of Environmental Factors on Reinforcement Effect[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(5): 1074-1080. (in Chinese))
[14]郭青林,王旭东.砂砾岩石窟灌浆材料PS-F 机制研究[J]. 岩石力学与工程学报,2009,28(增2): 3330-3335. (GUO Qing-lin, WANG Xu-dong. Study on Mechanism of PS-F Grouting Material for Sandy Conglomerate Grottoes[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(Sup.2): 3330-3335. (in Chinese))
[15]赵海英,王旭东. PS材料模数、浓度对干旱区土建筑遗址加固效果的影响[J]. 岩石力学与工程学报,2006,25(3):557-562. (ZHAO Hai-ying, WANG Xu-dong. Impact of Modulus and Concentration of Potassium Silicate Material on Consolidating Earthen Architecture Sites in Arid Region[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(3): 557-562. (in Chinese))
[16]陈礼仪,王 胜. 粉煤灰灌浆材料的研究与应用[J]. 成都理工大学学报(自然科学版),2007,34(2):206-209. (CHEN Li-yi, WANG Sheng. Research and Application of Fly Ash Grouting Materials[J]. Journal of Chengdu University of Technology (Natural Science), 2007, 34(2): 206-209. (in Chinese))
Options
文章导航

/

〈 〉

*严禁使用本系统存储、处理、传输涉密信息*
版权所有 © 《长江科学院院报》编辑部
技术支持：北京玛格泰克科技发展有限公司