Combined snowflake type pile foundation construction system and construction method
A pile foundation and combined technology, applied in the direction of foundation structure engineering, sheet pile wall, soil protection, etc., can solve the problems of lack, reduced construction quality, unable to guarantee the verticality of the pile body, etc., and achieves fast construction speed and foundation cost. The effect of low, excellent engineering benefits
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[0051] Such as figure 1 As shown, the combined snowflake pile foundation construction system of the present invention includes the combined snowflake pile foundation I and supporting construction equipment II.
[0052] Such as figure 2 As shown, the combined snowflake pile foundation I used in the present invention includes snowflake concrete steel sheet pile a and powder spray pile b. The pile point of the snowflake concrete steel sheet pile a is 45°, which is used to reduce the pile sinking resistance; the pile cap is connected with the pile core through the flange.
[0053] Since the powder-sprayed pile b mainly provides pile side friction resistance, the powder-sprayed pile does not enter the bearing layer at the pile end; while the snowflake concrete steel sheet pile provides greater pile side friction resistance and pile end resistance, the snowflake concrete steel sheet pile Need to enter the bearing layer, through the combination of powder spray pile b and snowflake...
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