单孔波速法和超声波法在复杂岩性地段对注浆质量的检测

Research on Grouting Quality Detection in Complex Lithology Area by Single Hole Wave Velocity Method and Ultrasonic Method

为了给乌鲁木齐绕城高速(东线)项目施工提供可靠的地质勘察资料,保障项目顺利进行。通过对乌鲁木齐绕城高速(东线)急倾斜煤层采空区与注浆工程有关的主要岩层(包括卵石层、强风化基岩、强风化煤层以及中风化基岩层)进行注浆前后单孔波速法和超声波法检测并对比结果。研究表明,注浆前后岩土体横波波速有所提高,密实度得到加固,注浆加固效果良好,单孔波速法和超声波法注浆质量检测技术方法可以在该项目推广应用。

In order to provide reliable geological survey data for the construction of Urumqi beltway(east route)and ensure the project to proceed smoothly,the detection results of single hole wave velocity method and ultrasonic wave velocity method before and after grouting the main rock strata in the goaf of steep inclined coal seam around the city of Urumqi were compared.The rock layers included pebble layer,strongly weathered bedrock,strong weathered coal seam and medium weathered base rock.The results show that the shear wave velocity of rock and soil before and after grouting is improved,the density is strengthened and the effect of grouting reinforcement is good.The single hole wave velocity method and ultrasonic method for grouting quality testing can be applied in the project.