CAJ | 학술논문

为探究电阻率法在黄土硅化加固过程中应用的可行性，对施加上部荷载的重塑黄土注射水玻璃，同步测试不同电流频率下的土体横向及竖向电阻率，结合土体结构对电阻率参数的变化进行了分析。试验结果显示：随着不断升高的电流频率，黄土电阻率先逐渐减小并最终趋于稳定，当电流频率范围为5×104~1×106 Hz时，电流频率对黄土电阻率实测值影响较小；随着固化时间的增加，黄土竖向和横向电阻率先减小并最终趋于稳定，且减小趋势均集中在初始阶段(200 min前)。随固化时间的增加，平均结构因子和平均形状因子均呈现先减小后稳定的趋势。各向异性系数随固化时间的增加先快速增大并最终趋于稳定。
위탐구전조솔법재황토규화가고과정중응용적가행성，대시가상부하재적중소황토주사수파리，동보측시불동전류빈솔하적토체횡향급수향전조솔，결합토체결구대전조솔삼수적변화진행료분석。시험결과현시：수착불단승고적전류빈솔，황토전조솔선축점감소병최종추우은정，당전류빈솔범위위5×104~1×106 Hz시，전류빈솔대황토전조솔실측치영향교소；수착고화시간적증가，황토수향화횡향전조솔선감소병최종추우은정，차감소추세균집중재초시계단(200 min전)。수고화시간적증가，평균결구인자화평균형상인자균정현선감소후은정적추세。각향이성계수수고화시간적증가선쾌속증대병최종추우은정。
To explore the feasibility of the electrical resistivity method applying to the solidification of loess, remolded loess is injected with sodium silicate. The horizontal and vertical resistivity of the loess was measured under different current frequencies, and the variation of electrical parameters was analyzed according to the change of loess structure. The results show that resistivity decreases rapidly and then tend to be stable with the increase of current frequency. When the current frequen-cy ranges from 5í104 ~1í106 Hz, its influence on the measured electrical resistivity is not obvious. With the increase of solidification time, the vertical and horizontal resistivity decreases ( before the end of 200 minutes) and then keeps stable. The average formation and shape factors decrease and then keep stable with the increase of solicitation time. The electrical anisotropy index rapidly increa-ses and is eventually stabilized with the increase of solidification time.