TY -的A2吴Chuangzhou AU - Lv, Gaohang盟——刘,剑盟——汉博盟——张Tiantao AU -谢,圈椅盟——张Xueshen PY - 2021 DA - 2021/09/24 TI -的影响,水灰比的水泥浆液粘度变化渗透灌浆SP - 7126013六世- 2021 AB -扩散半径是一个重要的施工参数,因为它可以极大地影响注浆效果。理论模型在预测扩散半径一直在练习,但仍有重要的理论计算和实际结果之间的差异在实际建设。说明的一个重要原因是水泥灌浆的时间行为,显著影响的水灰比(W / C)。因此,本文通过实验和数值研究W / C的影响粘度变化的灌浆和灌浆过程。首先,水泥浆的表观粘度在不同W / C是由一个旋转粘度计测试在实验室实验。随后,实验室检测的基础上,建立了数值模型探讨W / C对水泥灌浆在砂层的扩散过程。根据实验结果,水泥水泥浆的表观粘度随W / C的增加而减小。此外,表观粘度随时间增加,表观粘度范围的增加先增加然后减少随着W / C增加。根据模拟结果,从0.8到1.1 W / C变化时,扩散半径60分钟经验越来越少明显增加给定渗透注浆的注浆压力下砂层。当W / C 0.9,相对误差达到37.65%,60分钟,略低于0.8。 However, when W/C changes from 0.9 to 1.0, the relative error becomes very narrow (21.36%), and this figure is much lower than that of 0.8 or 0.9. The simulation results are verified by field test, and the relative error is 6%, which proves the effectiveness of the analysis. Therefore, the cement permeation model considering viscosity variation of the grout is a reasonable alternative in the real project. At the same time, the time-dependent behavior of cement grouts should be considered, especially when using cement grouts with a low water-cement ratio in the practical engineering. SN - 1468-8115 UR - https://doi.org/10.1155/2021/7126013 DO - 10.1155/2021/7126013 JF - Geofluids PB - Hindawi KW - ER -