Concrete filling pile head static cutting and crushing method
A technology of static cutting and crushing method, which is applied in the direction of sheet pile walls, stone processing tools, manufacturing tools, etc., can solve the problems of not being suitable for cast-in-situ piles, and the inability to cut concrete into small blocks, so as to reduce construction costs and labor intensity, The effect of shortening the construction period and easy construction operation
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Embodiment 1
[0032] Example 1: Horizontal cutting of pile heads of cast-in-situ piles with a diameter less than 1000mm
[0033] All the same as the other steps of the comparative example, the difference is that three cutting bodies 3 are used in the step 2), and the cutting bodies are all arranged outside the vertical reinforcement 1 (see figure 2 ). In this case, the cutting force of the cutting body is sufficient to cross the resistance of the steel bar, and the concrete of the cast-in-place pile is cut off along the predetermined position, and the cutting body is arranged outside the vertical steel bar 1, which can prevent the small-diameter pile from falling down during the concrete pouring process. The feed tube touches the cutting body.
Embodiment 2
[0034] Example 2: Horizontal cutting of pile heads of cast-in-situ piles with a diameter greater than 1600mm
[0035] The other steps are the same as those of the comparative example, except that six or more cutting bodies 3 are used in step 2), and the cutting bodies are arranged in the vertical reinforcement 1, and at least one A supporting steel bar 7, the supporting steel bar 7 is in the same horizontal plane as other cutting bodies 3, and another cutting body 3' is also bound to the supporting steel bar 7. Such as image 3 Shown, have shown to have set up two supporting steel bars 7 and cutting body 3 ' in addition. Like this, the cutting body 3 ' on the supporting steel bar 7 can produce horizontal cracks when the concrete in the middle of the reinforcement cage hardens, thereby also producing cutting action to this part concrete, so that the hoisting of step 4) is easier. If no support reinforcement is provided for auxiliary cutting, the large-diameter pile cannot be ...
Embodiment 3
[0036] Example 3: Two-way cutting of cast-in-situ pile head
[0037] 1) Wrap or put isolation material 6 on each vertical steel bar 1 reserved for the reinforcement cage of cast-in-situ pile (belt-shaped isolation material for wrapping, tubular isolation material for wrapping, foam plastic, rubber-plastic material for isolation material) , paper products, etc.) to prevent concrete from bonding to vertical reinforcement.
[0038] 2) Fix multiple cutting bodies 3 with metal, plastic, cotton, linen or other materials horizontally and evenly distributed in a circle on the vertical reinforcement of the reinforcement cage at the design position where the concrete needs to be removed from the cast-in-situ pile inside), generally each vertical steel bar is a binding point; at the same time, a cutting body 3' is vertically fixed with a binding line outside the isolation material 6 of each vertical steel bar 1, see Figure 4 .
[0039] 3) After hoisting the reinforcement cage with the...
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