CN101096848A

CN101096848A - Truncation method of concrete bottling body

Info

Publication number: CN101096848A
Application number: CNA2006100521752A
Authority: CN
Inventors: 邱启园
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-28
Filing date: 2006-06-28
Publication date: 2008-01-02

Abstract

The invention discloses a cutting method of concrete bottling body in architectural working method, which is characterized by the following: arranging amputation structural matter on concrete iron cage; placing the amputation structural matter in the deep pore under the floor; casting concrete till the ungraded concrete over designed elevation; dragging draw matter; flattening the amputation structural matter on carrier on the designed elevation; forming separated interface; freezing; destroying the ungraded section below the separated interface with the separated interface. This method does not restricted by the deep pore under floor and the size of the concrete iron cage, which possesses convenient operation.

Description

A kind of method for cutting of concrete bottling body

The invention belongs to construction techniques, specifically the method for cutting of concrete bottling body.

Common concrete bottling body such as in situ pile or diaphragm wall in the structure foundation Foundation Design, be the degree of depth and the design elevation thereof of calculating concrete bottling body according to factors such as building itself and geological conditionss, behind underground hole-forming, insert reinforcing cage, carry out underwater concreting, because poor quality concrete is squeezed topmost during concrete perfusion, therefore the actual elevation of the final concrete bottling body that forms exceeds poor quality concrete coagulum about 0.5 meter than design elevation, in order to guarantee the quality of Foundation Design, need carry out apparatus to this poor quality concrete coagulum after concrete setting abolishes, but because of the boundary between this poor quality concrete coagulum and the normal concrete setting thing and not obvious, concrete strength after condensing is very big, so bothersome effort of the work of abolishing, and be difficult to form flat surface, for the progress of follow-up engineering is made troubles at normal concrete setting thing top; Particularly the vibratility that crucial is produces when abolishing is broken and can be extended to normal concrete below the design elevation, the micro-cracks that perhaps causes naked eyes to be difficult for seeing; In addition when abolishing because of constructor's poor consciousness, play reasons such as a cutter point offset design absolute altitude control point, bore bit dig into the inclination of angle, the drill rod insertion depth was not enough when sled was disconnected and all can cause bottling body end face off-design absolute altitude.

The ZL94109254.2 patent of invention discloses a kind of " the removal method of cast-in-situ pile or continuous wall poor quality concrete ", this method be reinforcing cage is placed in the deep hole groove after at the appropriate location on reinforcing cage top, be provided with one by tension stress fabric or the formed spool of film along a side in the reinforcing cage, this tension stress fabric or film outer end are connected with several drag-lines, with the offside outside of each drag-line tractive to reinforcing cage; After concrete spouting is finished, pull drag-line so that tension stress fabric or film from spool pull out and be tiled in poor quality concrete that need to remove below formation poor quality concrete and the normal separation interface between concrete; After treating concrete setting, the poor quality concrete that will be positioned at tension stress fabric or film top along separation interface knocks out.But this method is the appropriate location that again tension stress fabric or film is arranged on the reinforcing cage top after reinforcing cage being placed in the deep hole groove, the selection on its operation opportunity causes having significant limitation and operational inconvenience in actual applications: at first owing to be in the reinforcing cage in the deep hole groove tension stress fabric or film to be set, be subjected to being limited in of deep hole groove and reinforcing cage specification, shape to have limited space in the operation; Secondly, formation method according to the deep hole groove, when in the deep hole groove that is forming filled thing (as stabilizing solution) being arranged, with regard to inconvenience tension stress fabric or film are set, and the position of restive tension force fabric or film, therefore in the use of hole forming method, there is limitation, is difficult to be applicable to all hole forming methods.

The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome limitation and the unhandy defective that existing concrete bottling body method for cutting exists, and a kind of method for cutting of new concrete bottling body is provided.For this reason, the present invention is by the following technical solutions:

The method for cutting of concrete bottling body, it is characterized in that: behind pore-forming, measure the distance of concrete bottling body design elevation to underground deep hole bottom, at the position of the inboard corresponding design elevation of reinforcing cage flexible tension is set according to this distance and blocks structure, and this blocks structure and is drawn in by the carrier that is connected on the reinforcing cage, this end that blocks structure is fixed on the carrier, its other end is connected with the traction thing, and described traction thing causes the reinforcing cage top through the edge of reinforcing cage; To have the reinforcing cage that blocks structure afterwards and insert underground deep hole, and surpass design elevation to underground deep hole concrete perfusion to poor quality concrete, traction traction thing forms separation interface with the structure flattening of blocking of drawing on carrier at the design elevation place; Through solidifying the formation bottling body, utilize this separation interface to abolish the part inferior that the above needs of bottling body separation interface are abolished.

As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature:

Described carrier is for being connected the axle shape thing of reinforcing cage inboard in the mode of rotating, the described structure that blocks is wound on this shape thing.So that after concrete spouting is finished, will block structure by the traction thing and pull out from this shape thing and flatten in the design elevation position.

Described carrier is the box that is connected the reinforcing cage inboard, and this box has an outlet; The described structure that blocks overlays in the box.This scheme is owing to be subjected to the protection of box, can effectively guarantee to draw smoothly and form smooth separation interface.

Described carrier is the gripping object that is connected the reinforcing cage inboard; Describedly block the gripped object clamping of the folding back of structure and.This is simple in structure, and volume is little, and is easy to implement.

The described structure that blocks is fabric or membranoid substance, is to want with softness, tension, obstruct upper and lower concrete coagulation.

Describedly be shaped as rectangle, trapezoidal, semicircle, triangle or arc after blocking structure and launching.

Described traction thing is some ropes or metal cable.

A described end that blocks structure connection traction thing is connected with shape retaining member, and the traction thing is a rope or metal cable.The effect of shape retaining member forms the plane that requires after being to guarantee to draw and blocking structure; Obvious, according to the shape of blocking after structure launches, this shape retaining member can be straight or curved shaft.

This method will be blocked structure earlier by the method for measuring and will be arranged on the reinforcing cage, to have the reinforcing cage that blocks structure afterwards again and place underground deep hole, be not subjected to the restriction of underground deep hole and reinforcing cage shape specification and hole forming method, and be provided with when blocking structure easy to operate.

Next, this method is blocked structure by pulling out immediately behind concrete perfusion, block structure and form separation interface in the flattening of design elevation place, this separation interface promptly is the datum when abolishing, be again the plane of disruption when abolishing, the cross section that the part inferior that promptly forms top and the normal concrete setting thing of bottom condense; Thereby after concrete setting forms bottling body; can abolish the above part inferior of bottling body separation interface easily and form the plane at the end face of normal concrete setting thing; the vibratility that produces when this separation interface can effectively be avoided abolishing is broken and is extended to the following normal concrete setting thing of this separation interface, and constructor's poor consciousness, rise the skew of cutter point, bore bit dig into angle, when sled is disconnected factor such as drill rod insertion depth influence and cause the bottling body end face to depart from.

Further, the mode of this method to measure, the position that structure is arranged on corresponding design elevation on the reinforcing cage will be blocked, can effectively guarantee to block the position of structure in underground deep hole and be sitting at the design elevation place, the separation cross section that forms behind concrete perfusion thus also just can be positioned at the design elevation place, and promptly forms consistent with design elevation, smooth concrete bottling body end face after abolishing part inferior.

Fig. 1 is for measuring the schematic diagram of the underground deep hole degree of depth from design elevation.

Fig. 2 is provided with the schematic diagram that blocks the structure position for determining with the underground deep hole degree of depth on the reinforcing cage.

Fig. 3 will be for will have the schematic diagram that the reinforcing cage that blocks structure is inserted underground deep hole.

Fig. 4 finishes rear haulage for concrete spouting and blocks structure launches to form separation interface at the design elevation place schematic diagram.

Fig. 5 is the view of the bottling body after the part inferior more than the separation interface is abolished.

Fig. 6～10 are several schematic diagrames that specifically block structure.

Figure 11 is for being provided with two schematic diagrames that block structure in reinforcing cage.

Below in conjunction with the formation of accompanying drawing and castinplace pile and abolish the present invention done and specify.

(1) measure: as shown in Figure 1, the lining rope 2 that will have weight 4 behind pore-forming sinks to underground deep hole 1, measures the depth H of design elevation 2 to underground deep hole bottom; As shown in Figure 2, according to the depth H of measuring, upwards measuring the height consistent with depth H from the bottom of reinforcing cage 5 promptly is that the position that flexible tension is blocked structure 6 is set.

(2) on reinforcing cage, be provided with and block structure: as shown in Figure 2,, have different set-up modes, see for details hereinafter to the various forms of explanations of blocking structure at the multi-form structure 6 that blocks; But requirement will be blocked the inboard that structure 6 is connected reinforcing cage 5 reliably, and will be loosening, not be shifted, and traction thing 7 then causes the reinforcing cage top through the offside guiding device of reinforcing cage 5 (as be welded on the reinforcing bar pilot hole) as rope.

(3) insert reinforcing cage: as shown in Figure 3, will have the reinforcing cage 5 that cuts off structure 6 with crane and slowly insert underground deep hole 1, and make the bottom of the reliable land in reinforcing cage 5 bottoms at underground deep hole 1; So far, the position of partition structure 6 is promptly consistent with design elevation 2.

(4) concrete perfusion: as shown in Figure 4, concrete perfusion 9 in a conventional manner, until concrete spouting to poor quality concrete is surpassed design elevation position 2, filling thing such as stabilizing solution 8 is therebetween progressively discharged, flatten partition structure carrier 11 on 6 in the position of design elevation 2 formation separation interface 15 from reinforcing cage 5 overhead extensions traction thing 7 this moment.

(5) concrete setting: as shown in Figure 4; stand-by period; make the poor quality concrete of separation interface about in the of 15 and normal concrete setting; promptly form coagulum inferior 10 and normal concrete bottling body 9 thus, and this partition structure 6 promptly forms the separation boundary of the two at the upper and lower that cuts off structure 6.

(6) abolish coagulum inferior: as shown in Figure 5, suitably remove the concrete bottling body earthwork 16 on every side, make in design elevation 2 positions and to abolish mark, in a conventional manner the coagulum in the reinforcing cage outside is abolished, expose reinforcing cage, can see separation interface, continue to abolish, can obtain smooth, with the plane 17, stake top of design elevation position consistency.

Carrier 11 as shown in Figure 6 is shape things, blocks structure 6 and is wound on the same structure of formation picture scroll on the shape thing, is installed with rotary supporting rod 12 at the center of axle shape thing, when installing rotary supporting rod 12 is fixed on the reinforcing cage inboard and gets final product on reinforcing cage.

Carrier 11 as shown in Figure 7 is a box, and this box has an outlet, blocks structure 6 and overlays in the box, and the inner of blocking structure 6 is fixed in the box, and the outer end of blocking structure connects traction thing 7 and is positioned at the exit.

Carrier 11 as shown in Figure 8 is gripping object (anchor clamps); Blocking structure 6 folding back gripped object clampings.

The outer end edges of blocking structure 6 13 as shown in Figure 9 (connect traction thing one end) is linearity, forms the shape of rectangle thus after expansion, thus make with its with have smaller volume and compact conformation after any carrier shown in Fig. 7,8,9 combines; 13 places are connected with direct rod shape shape retaining member 14 at the edge, connect a traction thing thus in the middle part of shape retaining member 14 and can will block the structure expansion.

The outer end edges of blocking structure 13 as shown in figure 10 is arcuation, and is connected with the shape retaining member 14 of arcuation, connects a traction thing 7 as cable wire on shape retaining member, can will block the state that structure keeps flattening after traction.

Figure 11 is for being provided with two schematic diagrames that block structure in reinforcing cage, two with form shown in Fig. 6 or 8 are blocked the middle part that structure is fixed on reinforcing cage side by side, traction thing with the two gets final product to opposite both direction traction respectively, the separation interface that this method forms is more complete, naturally also be more convenient for abolishing, this mode is particularly useful for large-caliber pile.

Blocking structure shown in Fig. 6～11, can be fabric or membranoid substance; Shape after it launches can also be trapezoidal, triangle or other shapes; And the traction thing can not flatten it with some cable tractions when having shape retaining member.

Obvious, this method also can be used for concrete continuous wall, general concrete bottling body are blocked.

Claims

1, a kind of method for cutting of concrete bottling body, it is characterized in that: behind pore-forming, measure the distance (H) of concrete bottling body design elevation (2) to underground deep hole (1) bottom, at the position of the inboard corresponding design elevation (2) of reinforcing cage (5) flexible tension is set according to this distance and blocks structure (6), and this blocks structure (6) and is drawn in by the carrier (11) that is connected on the reinforcing cage (5), this end that blocks structure (6) is fixed on the carrier (11), its other end is connected with traction thing (7), and described traction thing (7) causes the reinforcing cage top through the edge of reinforcing cage; To have the reinforcing cage (5) that blocks structure (6) afterwards and insert underground deep hole (1), surpass design elevation (2) to underground deep hole (1) concrete perfusion to poor quality concrete, traction traction thing (7), structure (6) flattening of blocking that will draw on carrier (11) locates to form separation interface (15) in design elevation (2); Through solidifying the formation bottling body, abolish the above part inferior (10) of bottling body separation interface.

2, the method for cutting of concrete bottling body according to claim 1 is characterized in that described carrier (11) for be connected the axle shape thing of reinforcing cage inboard in the mode of rotating, and the described structure (6) that blocks is wound on this shape thing.

3, the method for cutting of concrete bottling body according to claim 1 is characterized in that described carrier (11) for being connected the box of reinforcing cage inboard, and this box has an outlet; The described structure (6) that blocks overlays in the box.

4, the method for cutting of concrete bottling body according to claim 1 is characterized in that described carrier (11) is for being connected the gripping object of reinforcing cage inboard; Describedly block the gripped object clamping of the folding back of structure (6) and.

5,, it is characterized in that the described structure (6) that blocks is fabric or membranoid substance according to the method for cutting of claim 1,2,3 or 4 described concrete bottling bodies.

6,, it is characterized in that describedly being shaped as rectangle, trapezoidal, semicircle, triangle or arc after blocking structure (6) and launching according to the method for cutting of claim 1,2,3 or 4 described concrete bottling bodies.

7,, it is characterized in that described traction thing (7) is some ropes or metal cable according to the method for cutting of claim 1,2,3 or 4 described concrete bottling bodies.

8, according to the method for cutting of claim 1,2,3 or 4 described concrete bottling bodies, it is characterized in that a described end that blocks structure (6) connection traction thing is connected with shape retaining member (14), traction thing (7) is a rope or metal cable.