砾石土层中注浆扩散参数的研究

发布时间：2018-06-24 02:02

本文选题：砾石土 + 注浆模拟试验　；参考：《岩土力学》2015年S1期

【摘要】：采用注浆模拟试验与数值分析等研究方法,探讨了砾石土层中注浆的注浆量、浆液扩散半径及注浆形成的结石体抗压强度等参数预测计算模型,并设计试验对其进行了验证。试验结果表明,砾石土层中注浆的注浆量、浆液扩散半径及结石体的抗压强度等参数预测计算模型计算的注浆量、浆液扩散半径与注浆结石体抗压强度的理论值与试验实测值间虽分别有10%、5%、10%左右的差异,但均相差不大,因此,可用来预测砾石土层实际注浆工程中的注浆量、浆液扩散半径及注浆形成的结石体的抗压强度等参数。研究成果不仅可为砾石土层实际注浆工程实践提供理论支撑,还可为砾石土诱发的滑坡、泥石流等灾害的防灾减灾提供技术参考。
[Abstract]:By means of grouting simulation test and numerical analysis, the prediction models of grouting quantity, slurry diffusion radius and compressive strength of stone formed by grouting in gravel soil are discussed and verified by design test. The experimental results show that the grouting amount calculated by the model can be predicted by the parameters such as grouting quantity in gravel soil, slurry diffusion radius and compressive strength of stone body. Although there is a difference of about 10% between the theoretical value of the diffusion radius of the slurry and the compressive strength of the grouting stone body and the measured value of the test, the difference is not significant. Therefore, it can be used to predict the grouting quantity in the actual grouting project of the gravel soil. The diffusion radius of the slurry and the compressive strength of the stone formed by grouting. The research results can not only provide theoretical support for the actual grouting engineering practice of gravel soil, but also provide technical reference for disaster prevention and mitigation of gravel soil induced landslides, debris flow and other disasters.
【作者单位】：昆明理工大学国土资源工程学院;云南亚融矿业科技有限公司;
【基金】：国家自然科学基金(No.51064012,No.l51264018,No.41402272) 云南省省级人培项目(No.KKSY201421016,KKSY201421061) 云南省教育厅科学研究基金重点项目(No.2014Z031)
【分类号】：TU472

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