水泥稳定浆液最优配比及适用条件研究

doi:10.11799/ce201412032

煤炭工程 ›› 2014, Vol. 46 ›› Issue (12): 97-100.doi: 10.11799/ce201412032

水泥稳定浆液最优配比及适用条件研究

单仁亮,杨昊,郭志明,张雷

中国矿业大学（北京）

收稿日期:2014-02-26 修回日期:2014-03-27 出版日期:2014-12-12 发布日期:2014-12-10
通讯作者: 杨昊 E-mail:yanghao380073@126.com

Research on the Optimal Proportion and Applicable Conditions of Cement Stable Slurry

Received:2014-02-26 Revised:2014-03-27 Online:2014-12-12 Published:2014-12-10

摘要/Abstract

摘要：

为了确定水泥稳定浆液的最优配比，研究了不同水灰比，不同外加剂含量条件下，水泥浆液的析水率，粘度，抗压强度，初、终凝时间的变化特性，结果表明：水灰比为0.8，膨润土掺入量为2.5%，减水剂掺入量为0.8%时，水泥浆液的各项性能指标均满足稳定浆液的要求，且最经济，因此，该配比可作为水泥稳定浆液的最优配比。依据浆液在裂隙中的流动特性，给出了稳定浆液的注浆压力、扩散半径与裂隙宽度的关系表达式。参考已建工程，选取稳定浆液配套的注浆方法。

关键词: 稳定浆液, 最优配比, 水泥注浆, 适用条件, 立井注浆施工, 裂隙宽度

Abstract:

In order to determine the optimal proportion of cement stable slurry, variation characteristics of syneresis rate, viscosity, compressive strength of stone, initial setting time and final setting time, under different water cement ratio and different content of admixture, were studied. Results showed that: when water cement ratio is 0.8, incorporation of bentonite is 2.5% and incorporation of water reducing agent is 0.8%, each performance indexes of cement slurry meet the stable slurry requirement and most economical. Then, this ratio can be treated as the optimal proportion of cement stable slurry. Base on the flow characteristics in fracture, expressions between grouting pressure, diffusion radius and fracture width were given. Referring constructed engineering, the matching grouting methods of cement stable slurry were selected.

Key words: Stable Slurry, Optimal Proportion, Cement Grouting, Applicable Conditions, Shaft Grouting, Fracture Width

中图分类号:

TU457

单仁亮，杨昊，张雷，等. 水泥稳定浆液最优配比及适用条件研究[J]. 煤炭工程, 2014, 46(12): 97-100.

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水泥稳定浆液最优配比及适用条件研究

Research on the Optimal Proportion and Applicable Conditions of Cement Stable Slurry

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