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METHOD DEEP CEMENT MIXING WITH EXCELLENT CONSTRUCTION QUALITY
METHOD DEEP CEMENT MIXING WITH EXCELLENT CONSTRUCTION QUALITY
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机译:具有卓越施工质量的深层水泥混合方法
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摘要
PURPOSE: A deep cement mixing method for achieving excellent construction quality and efficiency is provided to improve endurance and service life of deep cement mixing equipment by regulating the rotation speed of a rod according to N-value of soft ground. CONSTITUTION: A deep cement mixing method for achieving excellent construction quality and efficiency comprises a step of penetrating under ground by a drive unit while regulating the rotation speed of a rod according to N-value of soft ground measured in a standard penetration test, a step of pulling up the rod inserted to the designated depth by rotating the rod reversely, and a step of injecting an stabilizing agent to be mixed with the soft ground. The rotation speed of the rod is adjusted to 60~35rpm to N-value of 0~4, 34~20rpm to N-value of 5~10, and 19~1rpm to N-value of 11~20.
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