龙门石窟裂隙防渗灌浆新材料试验研究

发布时间：2018-04-20 11:59

本文选题：龙门石窟 + 防渗灌浆　；参考：《长江科学院院报》2016年06期

【摘要】：因龙门石窟早期使用的超细水泥和环氧树脂材料在后期存在着耐久性较差、泛盐碱等问题,迫切需要选出更有效的裂隙防渗灌浆新材料,以满足龙门石窟的防渗要求。通过对研发的偏高岭土、天然水硬性石灰、硫铝酸盐水泥等5组材料配方的流动性、收缩性、抗压抗折强度等特性进行对比分析,得出偏高岭土、天然水硬性石灰、膨润土3种材料配方适合于现场灌浆。在现场灌浆试验中,确定了灌浆压力为0.1~0.4 MPa,并对材料的可灌性和灌浆参数进行了探讨与分析。同时,为评价灌浆效果,对灌浆材料28 d后的固化程度、密实度、充填程度、黏结程度等进行检验分析,结果表明偏高岭土材料配方的灌浆效果最佳,为更适合于龙门石窟裂隙防渗的灌浆材料。
[Abstract]:Due to the problems of poor durability and pan-salinization in the early use of cement and epoxy resin in Longmen Grottoes, it is urgent to select more effective new materials for anti-seepage grouting in order to meet the impervious requirements of Longmen Grottoes. By comparing and analyzing the fluidity, shrinkage and compressive strength of five groups of materials, such as metakaolin, natural hydro lime, sulphoaluminate cement and so on, it is concluded that metakaolin, natural hydro lime, etc. Three kinds of bentonite materials are suitable for field grouting. In the field grouting test, the grouting pressure is determined to be 0.1m 0.4 MPa, and the irrigation property and grouting parameters of the material are discussed and analyzed. At the same time, in order to evaluate the grouting effect, the solidification degree, compactness, filling degree and bonding degree of grouting materials after 28 days were examined and analyzed. The results showed that the grouting effect of metakaolin was the best. In order to be more suitable for the Longmen Grottoes fissure grouting materials.
【作者单位】：中国地质大学(武汉)工程学院;广州市地下铁道总公司;
【基金】：国家自然科学基金项目(40972183)
【分类号】：TV543;TV441

【相似文献】