托底灌浆新技术的理论分析

Theory Analysis on the Bottom-holder Grout New Technique

本文阐述了托底灌浆这一新技术的概念,并从托底灌浆的水平防渗作用、灌浆加固对岩土介质力学参数的影响、失稳破坏机理的转变、灌浆对下伏岩层的影响等几个方面对托底灌浆的加固机理进行了理论分析,提取出影响灌浆加固形成的素混凝土状盖板稳定的几个控制性因素,为岩溶地基加固处理工程的应用奠定了理论基础。

The article explained the concept of bottom-holder grout,and analyze its strengthen mechanism from following aespects: function of horizontal prevention of seepage,impact on rock soil medium mechanics parameter,the transition on lose stability and destroy mechanism,influence of the hided rock stratum on below.The article offers several control factors on influencing stability of the plain concrete apron formed by grout strengthened.It offers the theoretical foundation for the project application on strengthened and dealt with the abri ground.