DD211247A3 - METHOD AND DEVICE FOR PRODUCING FOUNDATION FEATURES - Google Patents

Abstract

The invention relates to the construction industry. Aim: production of foundations with a minimum of technical equipment. Task: Production of foundation piles in stages (pilgrim paving) with more precise adjustment of reinforcement and concreting shells, without groundwater being able to penetrate into the concreting hull and lateral leakage of concrete from the concreting hull to working joints. After the introduction and emptying of the drill pipe, the reinforcement is lowered on the pole and anchored in the soil. Then the foot of the pile is concreted. In the still fresh concrete of the pile foot, the concreting sleeve is brought so that its lower edge is sealed from the concrete. The concreting of the remaining pile takes place later, and in order to extract the concreting sleeve from the concrete of the pile base which has already been hardened, it consists of two shells, which are hinged at the foot and can therefore be spread on the head of the concreting sleeve. Field of application: Production of foundations.

Description

a) Title of the invention

Method and device for the production of foundation piles

b) Use of the invention

The invention relates to a method and a device for the production of foundations piles, in particular of those for the founding of buildings of Y / ohnungs- and society ßbaus as Plattenrostfundamente.

_c) Characteristics of the known n techtiischen solutions

From numerous public Vorbenutdüngen is known to bring drill pipes into the ground and bring in after removing the soil from the pipe concrete. The advantageous introduction of these drill pipes takes place according to DD-PS 122 838 by means of a special design of the lower edge of the drill pipe to a cutting shoe to the soil layers, especially offset with debris to penetrate quickly. To pull the tube with appropriate building material such. B. concrete is a "method for loading a cavity with flowable material" known and described in DE-PS 22 27 644. Thereafter, the concrete is introduced into the pipe by a double-acting piston vertically moving in the pipe and with a fluid, the piston moving upwards as the concrete rises in the pipe.

The above-mentioned technical solutions are only suitable for the introduction of the entire required concrete for a certain Bohrpfahllänge in the drill pipe, which is then pulled before the curing of the concrete, but in any case must remain in the ground for a certain time to the

To ensure proper execution of the bored pile. A production of bored piles in the so-called pilgrim step method is not possible because after the setting of the concrete, the pipe can not be pulled or only with significantly increased technical effort.

d) Object of the invention

It is the object of the invention to provide a method and the associated apparatus for practicing this method, which make it possible to make foundation piles in any number with a minimum of technical equipment and the full utilization of the same to the process of industrialization of the Housing in the underground area weiterententkeln.

e) depicting the nature of the invention ;

The invention has for its object to develop a method and apparatus that make it possible to produce foundation piles in stages, while allowing accurate adjustment of the reinforcement and the concreting and a penetration of groundwater in the concreting sleeve and a lateral leakage of Concrete from the concreting sleeve to avoid construction joints.

The object is inventively achieved in that the drill pipe is drained to the desired length of the pile and the soil located therein is removed. Thereafter, an adjusting device is arranged on the head of the drill pipe, through the center of a lot rod lowered down to the bottom of the well and then slightly inserted into the soil. Thereafter, the concreting of the pile base and the removal of the adjustment takes place in order to be able to lower a reinforcement cage on the plumb rod.

This step is followed by the placement of guide clamps on the head of the drill pipe for distance guide a concreting necks from the drill pipe, which is then lowered between the guide clamps and introduced into the fresh concrete dec Pfaalfußes and stands on a headband. Following this, the break-down of the breaker pipe is carried out in order to be able to pull the drill pipe afterwards. After pulling the drill pipe, the concreting sleeve is aligned and wedged against the drilling template which was laid prior to dripping the drill pipe. Only after the precise alignment of the concreting, which preferably takes place within the technological break between the concreting of the pile base and the rest of the pile, the pile is concreted to the head, After reaching the dimensional stability of the concrete, consisting of two shells Betonierhülse is spread and their Parts pulled one after the other. The spreading takes place at the pile head by means of mechanical force, z. B. using a winch or hydraulics.

To carry out this. Method are arranged on the upper edge of the drill pipe in rotatable couplings, which are pushed with their existing in the lower area vertical slot on the edge of the drill pipe and clamped there by means of a clamping screw. In the upper part of the coupling, a horizontal bore is provided through which either one axis of the adjusting device or the holder for the curvature of the concreting adapted FUhrungsschelle is guided and clamped therein, wherein the clamping takes place with the aid of a likewise arranged there clamping screw. The adjusting device is cross-shaped, preferably made of round steel and provided with dipsticks and has in its center a partially closed round eyelet, which serves the central lowering of the plumb rod. The reinforcing cage has on its foot, a guide bracket, in the putty a circular opening is present. Vertical bars of the reinforcing cage are just performed as mandrels to under the guide bracket and anchored preferably by its own weight. The concreting sleeve consists of two. Bowls so articulated on their underside,

in that the outer shell lying at a point of impact lies at the opposite point of impact inside, in order not to change the bending radius of the concreting sleeve. In this case, the one impact point at the base of the concreting sleeve is designed as follows: The inner shell has in the pus area a bearing which at its front end has a collar on it. The distance of the collar from the outer edge of the inner shell corresponds to the thickness of the outer. Furthermore, the inner shell has obliquely below the horizontal axis of the abutment a contact point, which is arranged in the direction of the curvature of this shell. The outer shell of the concreting is provided with a vertical, upwardly tapering contactor whose upper limit is adapted in shape to the abutment on the inner shell to obtain a positive support. The support point facing the vertical edge of the outer shell is formed in the pus area as a curve that expires when spreading the shells of the concreting at the support point. The other impact point on the puddle of the concreting sleeve is formed as follows:

The inner shell is provided with the upwardly tapering slot, wherein the contact point located in the direction of the curvature of this shell is also disposed on the inner shell.

The outer shell is provided with the abutment, wherein the collar is located directly on the outer edge of the outer shell and bearing surface behind the inner edge of the Auüenliegenden shell and the inner shell in the region of there arranged, upwardly tapering slot receives. Again, the vertical edge of the outer shell is formed in the pus region as a curve to drain at the contact point can.

Above the impact points of the concreting sleeve in the pusher area and, if required, also below the impact points of the concreting sleeve in the head area, there are arranged pushers which serve to stabilize the concreting sleeve in such a way that the shell of the concreting shroud lying at the impact point in each case

sleeve engages under these guide tabs.

At the top of the concreting sleeve inclined sliding bearings are present on the outer walls of both shells, which are arranged in different planes that 3ie in the mounted state of both shells of the concreting sleeve on each other. In each case, a bolt is arranged in each case on the inner shell, which provides folded over both shells for a firm cohesion of the inner and the outer shell of the concreting sleeve. To increase the frictional connection, the bolt tensions over a drainage curve. Sin arranged on the inner shell console serves as a pressure point for a corresponding lever to open the bolt.

f) execution example

The invention is explained below by way of example. In the drawing show:

the top view of the adjustment, the view in the direction of a to Pig. t, the horizontal section through the coupling with adjusting device,

the vertical section through the coupling with adjusting device

the horizontal section through the coupling with Führungsschelie,

the vertical section through the coupling with Pührschelle,

the plan view of the reinforcing cage, the vertical section through the Beviehrungskorb, the vertical section through the joint area of the concreting sleeve,

the cut a-a after Pig. 9

the view of the outer shell of the concreting sleeve in direction A,

the view of the inner shell of the concreting sleeve in direction A,

FIG. 1: Pig. 2: Pig. 3: Pig. 4: 5: Pig. 6: Pig. 7: Pig. 8th: Pig. 9: Pig. 1.0: Pig. 11: Pig. 12:

Pig. 13: the view of the outer shell of the concreting sleeve in the direction B,

Pig. 14: the view of the inner shell of the concreting sleeve in the direction B,;

15: the closure of the impact of the shells in the upper region of the concreting sleeve,

Fig. 16: the section; cc to Pig. 15 and Fig. Mt shows the section dd after Pig. 16th

From Pig. T it can be seen that on the head of the drill pipe .1, the adjusting device 2 is arranged, which has the dipsticks 3 of FIG. 2 at their ends to the plank rod 4 according to the Pig. 8 to align. In the center of the adjusting device 2 is the partially closed eyelet 5 to lower the pole 4 can. The attachment of the adjusting device 2 to the head of the drill pipe 1 is shown in FIGS. 3 and 4. Thereafter, the ends of the adjusting device 2 are guided through the horizontal opening of the rotatable coupling 6 and secured by means of the clamping screw 7. The located in the internal region of the coupling 6 vertical slot, is used to attach the coupling 6 on the drill pipe 1, wherein the arranged in this area clamping screw 7 a of the attachment of the coupling is used.

In Fig. 5 and 6 it is shown how the holder of the guide clamp S are held in the same manner as the ends of the adjusting device 2 by means of the coupling 6. This guide clamp 8 is used to adjust the concreting 9, which is introduced after concreting the pile base in the drill pipe 1.

Fig. 7 illustrates how the guide bracket 19 are formed with the Lotstangenöse 20. This Lotstangenöse 20 centers the reinforcement cage 21 when lowering into the concreting 9th

The vertical sectional illustration of FIG. 8 shows the mandrels 22 which are arranged below the guide bracket 19 and which anchor.

From Fig. 9 it can be seen how the shells of the concreting 9 are joined together. The outside at the point of impact A

Shell 9 a is located at the impact point B inside and engages behind the guide plate 10 which is fastened above the impact points A and B on the respective outer shell 9a or 9b. The outside at the shock point B shell 9b reads at the shock; point A inside, so that the radius of the concreting sleeve is not changed. The Snde of the outside at the point of impact B shell 9b also engages behind the guide plate 10 in the area of the point B.

From Pig. 10, it can be seen how the shells 9a; 9b once as a front and once as a rear shell on the abutment 1t; 11a sit up.

In Pig. 11, the view of the outer shell 9a of the concreting 9 is shown in the direction of a. In this case, the bearing 11 is located on this outer shell 9a. In the Pig. 12, however, the view of the inner shell 9a is shown in the direction A. At this point is the attachment point 12, against which the formed as a curve foot -1: 3 after Pig. 11 places. The upwardly tapering slot 14 is rotatably seated on the abutment 11. According to Pig. 13, the outer shell 9b is rotatably mounted on the abutment 11 a. The placement of the shell 9a is made possible by the upwardly tapered slot 14 a. The foot 13a is also formed as a curve to run at the contact point 12a, when the shells 9a; 9b of the concreting 9 are spread apart after reaching the dimensional stability. As shown in Fig. 14, the abutment 11a and the abutment point 12a are on the inner shell 9a. FIGS. 15 to 17 show the individual parts of the closure. Thereafter, on the outer walls of both shells 9a; 9b inclined slide bearings 15 present, which are arranged in different planes that they in the assembled state of both shells 9a; 9b of the concreting 9 lie on each other. Each on the inner shell is above the slide bearing 15 of the bolt 16 rotatably mounted, which engages over the outer shell 9a or 9b and both clamped together. The latch 16 is stretched over a flow curve 17 located on the respective outer shell 9a or 9b, in order to accommodate the force action of both shells. 9a; 9b to optimize.

Λη the respective inner shell 9a; 9b, the bracket 13 is attached, which serves as a pressure point for a lever for opening the bolt 16.

Claims (5)

Erfindungsansprüehe 1. A method for the production of foundation piles, in particular for the founding of buildings of Y / ohnungs- and; Gesellschaftsbaus unter'Werwendung of drill pipes from which the Abdistribut the Brdreich is removed and using concreting sleeves, in which a reinforcement cage is introduced, characterized in that an adjusting device is arranged on the head of the drill pipe, Mi ττβ their Mipunkt Ipunkt a plumb rod lowered to the bottom of the well and inserted slightly into the soil, that the pile base is concreted and the adjusting device is removed, that a reinforcing basket lowered with a guide on this lot rod and anchored in the pile base, that the plumb bar pulled out and the reinforcing cage at his Aligning the upper end in the drill pipe that guide clamps are placed on the head of the drill pipe, between which the concreting is introduced into the fresh concrete of the pile base, that the guide clamps are dismantled and the drill pipe pulled, that the concreting a n a drilling template, which was laid on the surface before the drill pipe, is aligned and fixed, that the completion of the pile on the already begun with the setting process concrete of the pile base takes place and after reaching the dimensional stability of the concrete consisting of shells Concrete sleeve spread and the shells are pulled out individually. 2. Apparatus for the production of foundation piles using drill pipes, drilling templates, concreting sleeves with molded slot-forming formwork parts, reinforcement baskets and couplings, characterized in that on the head of the drained and emptied drill pipe (1) couplings (6) are arranged with pushed its existing in the lower area vertical slot on the edge of the drill pipe (1) and secured by means of a clamping screw (7) that in upper area of the coupling (6) a horizontal Boh.- tion is provided, through which either the axis of an adjusting device (2) or the holder of a guide clamp (S) out and with a clamping screw (7a) is braced that in the center of the Adjusting device (2) a plumb rod (4) is arranged temporarily, that the reinforcing cage (21) guide bracket (19), in the center of a Lotstangenöse (20) is arranged, and at its lower end mandrels (22) has that the concreting consists of shells (9a, 9b) which are hinged at their underside so that at a point of impact, the inner shell (9a) at its base an abutment (t1a) having at its front end a collar whose distance from the outer edge of the inner shell (9a) corresponds to the thickness of the outer shell (9b) and has a support point (12a) which extends below the horizontal axis of the abutment (1a) in the direction of the curvature of the shell (9a) is arranged so that at the same point of impact, the outer shell (9b) with a vertical, upwardly tapering slot ItAo-) is provided, whose upper limit in shape to the abutment (1i1a) on the inner shell (9a ) Is adapted to the contact point (12 a) on the inner shell (9 a) facing vertical edge of the outer shell (9 b) is formed in the foot as a curve, that at the other impact point, the inner shell (9 b) with the upwards tapered slot (14) and the contact point (1: 2) provided and the outer shell (9a) with the V / ider camp (11) are provided, wherein the collar of the abutment (11) directly on the outer edge of the outer shell ( 9a) and the bearing surface behind the inner edge of the outer shell (9a) are arranged such that the vertical edge of the outer shell (9a) is again formed in the foot area as a curve that above the points of impact Concreting sleeve (9) and, if necessary, below the closures guide plates (10) on the respective inner shells (9a; 9b) are arranged behind which the respective outer shell (9a; 9b) engages that on the Außenwandüngen the shells (9a, 9b) at the head of the concreting sleeve (9) slide bearings (15) are arranged, which in the mounted state of the shells (9a, 9b) are superimposed on that at the upper impact point respectively inside Shell (9a, 9b) a bolt (16) and a console (1: 8) are arranged and that at the upper impact point each outer shell (9a, 9b) is formed as a curve. 3. Device according to item 2, characterized in that the guide clamp (B) is curved and this curvature of the concreting sleeve (9) corresponds. 4. Device according to item 2, characterized in that , the adjusting device (2) is formed cross-shaped, that in its center is a partially closed eyelet (5) and that at the ends of dip rods (3) are arranged. 5. The device according to item 2, characterized in that the sliding bearing (15) are arranged obliquely to ensure maximum adhesion of the shells (9a, 9b). For this 5 pages drawing.