浅谈钢板桩施工方法之静压法和辅助方法
发布时间：2016-5-16 9:22:02 浏览次数:670静压法
HTg
利用巳打人钢板桩的反力,以液压机构夹紧钢板桩桩体中部压入土中。因机器主体很小，适用于梁下施工，可实现超近距离施工，并可在钢板桩上部自行行走，但钢板桩吊装需特殊的起重机。施工噪音低、振动范围小，但设备投入较大。
Use force beating steel sheet piles, pile clamping plate with hydraulic pressure buried in central. The machine body is very small, which is suitable for the construction of the beam, can realize the super close distance construction, and can walk on the upper part of the steel sheet pile, but the steel sheet pile hoisting requires special crane. Construction noise is low, the vibration range is small, but the equipment investment is big.
辅助方法
Auxiliary method
（a）射水法
(a) waterjetting
在硬质粘土、强风化土层及局部土石块等特殊地质条件下，通过在桩尖设置高压水喷头，以高压水射流使土壤疏松、带走松散土石，从而易于沉桩。
Under special geological conditions such as hard clay, strong weathered soil layer and local rock block, the high pressure water jet is arranged on the top of the pile tip to make the soil loose and take loose soil and rock, so that it is easy to sink.
（b）引孔法
(b) induced hole method
一般以麻花钻在桩体中心按孔径300—400mm进行取钻，可有效疏松土层。
In general, twist drill in pile body center according to the pore size of 300 - 400mm drilling, which can effectively loose soil.
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