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汉孝城际铁路HXSG-2标段部分低填欠挖段软土地基需采用CFG桩加固处理,为保证加固质量,进行了室内配方试验和成桩试验,在施工中采用长螺旋成孔管内泵压混合料灌注成桩法工艺流程,把好原材料试验检验关,确保桩数长度,水泥、碎石、石屑、粉煤灰用量符合设计要求,加强质量检验等控制环节。
In the HXSG-2 section of HXSG-2 section of Han-Xiao Intercity Railway, soft soil foundation should be strengthened by CFG pile. To ensure the quality of reinforcement, indoor formula test and pile test were carried out. During the construction, Pumping mixed material into pile filling process, the good test of raw materials test to ensure that the length of the pile, cement, gravel, stone chips, fly ash dosage in line with design requirements, and strengthen quality control and other aspects of control.