浅析除险加固高压旋喷灌浆质量问题与对策

Primary Analysis on Quality Problems and Countermeasures of High Presure Rotating-jet Grouting in Reinforcement Engineering

通过对高压旋喷灌浆施工技术的特点、流程及施工质量控制、工艺要求等进行探讨,对高压旋喷灌浆施工质量问题进行分析并提出相应对策;为确保工程质量,高压旋喷灌浆应严格按照技术要求进行操作,重点对水压、水量、气量、浆液密度、进浆量、提升速度、回浆密度进行控制。通过具体项目实施,结果表明:高压旋喷注浆施工质量问题通过采取措施是能有效控制的,高喷灌浆对坝体防渗堵漏效果好,对类似的坝体防渗加固工程具有借鉴作用。

The construction quality problems of this grouting technology are discussed and analyzed such as the technical characteristics and process of the construction,as well as the quality control and work requirements of the construction,and finally the countermeasures are put forward,including strictly operating according to technical requirements and majorly controlling water pressure,water volume,gas,slurry density,slurry volume,speed,slurry-return density and so on.The implementation results of this project show that the construction quality of high pressure rotating-jet grouting could be controlled effectively by using some measures,this grouting technology has good effect for dam seepage control,at the same time,it could provide references for similar projects.