CFG桩施工工艺探讨

CFG是英语单词Cement Fly-ash Gravel的首字母,意思是水泥粉煤灰碎石桩,其是由粉煤灰、石屑、碎石、砂掺加水和水泥,依托相应的成桩机器加工而成的有一定硬度的可变强度桩。这种桩是硬度较小的混凝土桩,能够有效运用桩间土的负载力,且能够把载荷传输到处于地下的地基中,施工工艺简单,所需资本较少。CFG法适合运用到处理桩端、粉土、沙土、粘性土与有一定硬度的土层、负载力数值在70kPa以上的淤泥、人力进行土料回填等类型的地基中。

Discussion on CFG Pile Construction Technology

CFG is a variable-strength pile with a certain hardness,which is made of fly ash,stone chips,crushed stone,sand mixed with water and cement,and processed by corresponding pile-forming machines.This kind of pile is a relatively hard concrete pile,which can effectively use the load of the soil between the piles,and can transfer the load to the underground foundation.The construction process is simple and the required capital is small.The CFG method is suitable for treating pile ends,silt,sand,cohesive soil and soil layers with a certain hardness,silt with a load capacity of more than 70kPa,and manual backfilling of soil materials.