SGER: Soil Solidification by Magnetorheological Fluids

磁流变液（MRFs）在粗粒土临时原位固化中的潜在应用正在研究中。如果磁流变材料被成功地引入土壤的孔隙空间，并通过磁场的应用固化，它们可以显著提高我们在最小干扰下取样饱和或干燥无黏性土壤的能力。孔隙流体冻结的成本节约非常显著。mrfs在岩土工程中的其他潜在应用可能包括：开挖和隧道的土壤稳定，控制渗漏和污染物迁移，减少液化危害，控制机器振动，土壤附加物加速施工前沉降等。目前的探索性实验室计划将包括在mrf稳定土壤中进行水力导电性、刚度、强度、振动引起的体积变化敏感性和开放性切口稳定性的测试。

The potential usage of magnetorheological fluids (MRFs) for temporary in-situsolidification of coarse-grained soils is being investigated. Should magnetorheologicalmaterials be successfully introduced into the pore space of a soil and solidified byapplication of a magnetic field, they could significantly improve our ability to samplesaturated or dry cohesionless soils with minimum disturbance. The cost savings overpore fluid freezing could be very significant. Other potential future applications of MRFsin geotechnical engineering may include: stabilization of soil for excavation andtunneling, control of seepage and contaminant migration, liquefaction hazard reduction,control of machine vibrations, soil surcharging to accelerate pre-construction settlementand others. The present exploratory laboratory program will include tests for hydraulicconductivity, stiffness, strength, volume change susceptibility due to vibration, andstability of open cuts in MRF-stabilized soils.