钻孔取样;
Analyse of SPT and Boring Sample Test of Deep Mixing Piles
深层搅拌桩标准贯入及取芯试验分析
The inspection results indicated that the uniform diameter of pure sand-gravel columns in mud and silt reached 55~ 82 cm, and the boring core sample strength of grouting column reached 4.3~ 11.4 MPa at the age of 28 d.
检测结果表明,挤入淤泥和粉土中的纯砂砾柱平均直径达到55~82cm,28d龄期时水泥砂砾灌浆体取芯的抗压强度达到4.3~11.4MPa。
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