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结合某地具体的工程实例,根据场地的岩土工程条件对场地局部区域进行了施工勘察,分析出采空区的特点,拟定了注浆法对采空区进行处理。然后阐述了注浆处理具体设计的各种要求以及对参数的确定,详细分析了在处理过程中遇到的三个孔异常情况处理的方法。施工完后,采用点、面相结合的方法进行质量检测。根据检测孔布置图,经过钻孔、压水试验、跨孔CT扫描技术的效果检测,所得检测结果均达到预期的注浆效果。
According to the specific engineering example in a certain area, the construction site survey is conducted according to the geotechnical conditions of the site, the characteristics of the goaf are analyzed, and the grouting method is formulated to deal with the goaf. Then, the various requirements of the grouting treatment design and the determination of the parameters are expounded. The methods to deal with the abnormal situation of the three holes encountered in the process are analyzed in detail. After construction, the use of point, the method of combining surface quality inspection. According to the layout of the test hole, after drilling, water pressure test, cross-hole CT scanning technology, the test results achieved the expected grouting effect.