CN214363445U - Equipment for accurately positioning height of foundation pile and position of reinforcement cage - Google Patents

Abstract

The utility model discloses a device for accurately positioning the height of a foundation pile and the position of a reinforcement cage, which comprises a steel casing, wherein a radial outward-protruding limiting ring is fixed on the side wall of the steel casing; the side wall of the steel casing is also provided with a plurality of reinforcing rib plates, and the lower edge of each reinforcing rib plate is fixed with the limiting ring; the limiting ring is provided with a plurality of vertical holes in a penetrating mode, each vertical hole is internally provided with a bolt in a sliding fit mode, each bolt is provided with a grouting main channel in a penetrating mode along the length direction, each bolt is internally provided with a circle of radial upper nozzles and a circle of radial lower nozzles, grout is sprayed out of the lower nozzles to form bottom nodular concrete, grout is sprayed out of the upper nozzles to form middle nodular concrete, and the limiting ring is placed on the middle nodular concrete. The equipment can effectively avoid the settlement of the steel casing.

Description

Equipment for accurately positioning height of foundation pile and position of reinforcement cage

Technical Field

The utility model relates to a foundation pile pore-forming construction technical field, thereby it protects equipment that a stability realized accurate positioning foundation pile height and steel reinforcement cage position to be used for strengthening the steel during pore-forming that says so.

Background

The foundation pile is widely applied to engineering foundations of structures such as bridges, wind power, tunnels, large-scale venues and the like, a steel pile casing is generally used during construction of the engineering foundation pile, namely a main body of the steel pile casing is placed into a soil body by a static pressure pile machine or a vibration hammer and the like, and the top of the steel pile casing is exposed out of the ground by about 20cm, so that the effects of positioning the center of a pile foundation, protecting walls, preventing hole collapse, stabilizing the height of slurry liquid level in the hole, preventing foreign matters on the ground from falling into an orifice and the like are achieved.

The top surface elevation of the steel pile casing is an important basis for controlling the height of the foundation pile, and specifically, the side wall of the steel pile casing is provided with a measuring point, a worker measures the absolute elevation of the measuring point by using a total station, and the distance between the measuring point and the top surface of the steel pile casing is known, so that the absolute height of the top surface of the steel pile casing on a construction site can be known, and when concrete is poured, people can measure the distance between the top surface of the steel pile casing and the liquid level of the concrete by using a measuring rope with a heavy hammer, so that the top elevation of the foundation pile can be obtained by subtracting the length of the measuring rope from the absolute height of the top surface of the steel pile casing under ideal conditions.

The top elevation of the steel casing is also the basis for controlling the height of the foundation pile reinforcement cage, and specifically, two hanging beams are placed on the top surface of the steel casing, and the reinforcement cage is bound and suspended on the hanging beams through hanging ropes, so that the top elevation of the reinforcement cage can be obtained by subtracting the length of the hanging ropes from the known absolute height of the top surface of the steel casing.

However, in actual construction, the following disadvantages are present. Firstly, because the steel protects a section of thick bamboo from great, it is big to the stability dependence of bottom holding power soil body, nevertheless drilling rod is crept into and is inevitable to be caused shock and disturbance to the steel protects a section of thick bamboo bottom soil body, and the closely knit degree of the different circumferential position's of steel protection bobbin bottom soil body and bearing capacity are just different originally, so the steel protects a section of thick bamboo and inevitably takes place inhomogeneous settlement. In case this situation takes place, urgent handling is difficult, and it is hard to rework, and can't provide accurate positioning basis to foundation pile top surface elevation and steel reinforcement cage top surface elevation again, so the sinking problem of steel pile casing becomes the problem that awaits a urgent solution in the actual construction of foundation pile. In any case, the binding positions of the hanging beam, the top surface of the steel casing and the hanging rope on the hanging beam are lack of corresponding positioning devices, so that the transverse or radial position of the reinforcement cage on the cross section of the foundation pile cannot be ensured, and the elevation of the top surface of the reinforcement cage cannot be positioned due to uneven settlement of the steel casing, so that the thickness of the concrete protective layer outside the reinforcement cage is uneven, and the overall mechanical property of the foundation pile is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an equipment that can effectively avoid the accurate positioning foundation pile height that a steel protects a section of thick bamboo and steel reinforcement cage position.

The technical solution of the utility model is to provide a device for accurately positioning the height of the foundation pile and the position of the reinforcement cage, which comprises a steel casing, wherein a radial outward-protruding limiting ring is fixed on the side wall of the steel casing; the side wall of the steel casing is also provided with a plurality of reinforcing rib plates, and the lower edge of each reinforcing rib plate is fixed with the limiting ring; the limiting ring is provided with a plurality of vertical holes in a penetrating mode, each vertical hole is internally provided with a bolt in a sliding fit mode, each bolt is provided with a grouting main channel in a penetrating mode along the length direction, each bolt is internally provided with a circle of radial upper nozzles and a circle of radial lower nozzles, grout is sprayed out of the lower nozzles to form bottom nodular concrete, grout is sprayed out of the upper nozzles to form middle nodular concrete, and the limiting ring is placed on the middle nodular concrete.

Compared with the prior art, the equipment for accurately positioning the height of the foundation pile and the position of the reinforcement cage has the following advantages.

Firstly, analyzing the working process of the equipment: the steel casing is inserted in place at one time, the steel casing is ensured to be vertical, the limiting ring is directly placed on the soil body, then a bolt is inserted into each vertical hole of the limit ring, cement paste is injected into the soil body by utilizing the main grouting channel of the bolt, thereby forming two node-shaped concretes at the middle part and the bottom part on each bolt, wherein the two node-shaped concretes respectively play their own roles, the node-shaped concrete at the bottom part enhances the anti-settling performance of the bolt, and the node-shaped concrete at the middle part supports the spacing ring, in other words, the spacing ring is placed and supported on the middle node-shaped concrete, thereby effectively avoiding the steel casing from sinking accidentally, therefore, workers measure the absolute elevation of a measuring point by using a total station instrument on site, and the distance between the measuring point and the top surface of the steel casing can be added, so that the absolute height of the top surface of the steel casing can be accurately obtained and used as a basis for controlling the elevation of the top of the foundation pile, then, when concrete is poured, the absolute height of the concrete liquid level, namely the top elevation of the foundation pile, is accurately measured and controlled by using the measuring rope with the heavy hammer; of course, the absolute height of the top surface of the steel pile casing is also used as a basis for controlling the elevation of the top of the reinforcement cage of the foundation pile, so that the thickness of the upper part of the reinforcement cage of the foundation pile reaches the design requirement, and the elevation of the foundation pile is accurately positioned from another angle.

Preferably, the reinforcing rib plates are trapezoidal plates with large upper parts and small lower parts, the side wall of the steel pile casing is further fixedly provided with radially outwards protruding support rings, and the upper edge of each reinforcing rib plate is fixed with the support rings; two bubble type gradienters which are vertical to each other are arranged on the support ring; like this for support ring, reinforcement floor and spacing ring are connected fixedly and are formed wholly, strengthen intensity and firmness that its support was shelved, moreover, have vacated the space of installing two spirit levels of mutually perpendicular, thereby whether audio-visual accurate judgement spacing ring is level, and then ensure that the timing of follow-up foundation pile each height is controlled accurately.

Preferably, the top surface of the steel casing is provided with two limiting grooves, each limiting groove is formed by two pits positioned on the same straight line, and a hanging beam is clamped in each limiting groove; two lifting ropes are bound on each lifting beam, two pin holes are arranged on two sides of each binding point of each lifting beam, and two limiting bolts used for clamping the lifting ropes at the binding points are arranged in the two pin holes; like this, the lateral position of steel reinforcement cage has accurately been injectd, the relative position of steel reinforcement cage in the foundation pile cross section promptly to ensure that the protective layer thickness of steel reinforcement cage outsourcing is even, and then ensure each mechanical properties of foundation pile.

Preferably, the limiting ring is fixed with guide sleeves which correspond to and are communicated with the vertical holes one by one; in this way, it can be further ensured that each bolt remains vertical, further ensuring the level of the stop collar it supports.

Drawings

Fig. 1 is the structure schematic diagram of the utility model discloses the equipment of accurate positioning foundation pile height and steel reinforcement cage position.

Fig. 2 is a schematic view of the structure of fig. 1 after being deflected by a certain angle.

Fig. 3 is the utility model discloses the partly enlarged sectional structure of bolt of the equipment of accurate positioning foundation pile height and steel reinforcement cage position schematic diagram.

The concrete grouting device comprises a steel casing 1, a steel casing 2, a limiting ring 3, a reinforcing rib plate 4, a bolt 5, a grouting main channel 6, an upper nozzle 7, a lower nozzle 8, bottom nodular concrete 9, middle nodular concrete 10, a support ring 11, a limiting groove 12, a hanging beam 13, a limiting bolt 14, a guide sleeve 15 and a bubble type level gauge.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

As shown in fig. 1-3, the device for accurately positioning the height of the foundation pile and the position of the reinforcement cage of the present invention comprises a steel casing 1, wherein a radially outward protruding limiting ring 2 and a support ring 10 are welded and fixed on the side wall of the steel casing 1; the support ring 10 is located above the retainer ring 2 and has a smaller area than the retainer ring 2. A plurality of reinforcing rib plates 3 are welded on the side wall of the steel casing 1, and all the reinforcing rib plates 3 are uniformly distributed along the circumferential direction of the steel casing 1; each reinforcing rib plate 3 is a trapezoidal plate with a large upper part and a small lower part, and the lower edge of each reinforcing rib plate 3 is fixedly welded with the limiting ring 2; the upper edge of each reinforcing rib 3 is welded to the support ring 10. Two bubble levels 15 are arranged on the support ring 10, which are perpendicular to each other. The bubble level 15 is a conventional commercially available structure in that the solution in the vial of the level is left with bubbles that, if horizontal, hover over the vial in a centered position.

A plurality of vertical holes are communicated on the limiting ring 2, guide sleeves 14 which correspond to the vertical holes one by one are fixed on the limiting ring 2, and each guide sleeve 14 is communicated with the corresponding vertical hole. Each vertical hole and the corresponding guide sleeve 14 are internally and slidably matched with a bolt 4, and the bottom end of the bolt 4 is a sharp part convenient for downward insertion.

Each bolt 4 is provided with a main grouting channel 5 in a penetrating way along the length direction, and each bolt 4 is internally provided with a circle of radial upper nozzles 6 and a circle of radial lower nozzles 7. The nozzle can be understood as a branch channel communicating with the main grouting channel 5. The worker injects slurry from the upper opening of the main grouting channel 5 of each bolt 4, so that a part of slurry is sprayed from the lower nozzle 7 to form bottom nodular concrete 8, and the other part of slurry is sprayed from the upper nozzle 6 to form middle nodular concrete 9. Of course, workers have incorporated accelerators into the cement paste to allow the cement paste or concrete nodules to develop strength quickly. The spacing ring 2 is placed on the middle nodular concrete 9. More specifically, the bottom nodular concrete 8 mainly plays a role in preventing the bolt 4 from being stressed and settled, and the middle nodular concrete 9 is used for placing the limiting ring 2 to support the steel casing 1.

The top surface of the steel casing 1 is provided with two limiting grooves 11, each limiting groove 11 is composed of two pits positioned on the same straight line, and a hanging beam 12 is clamped in each limiting groove 11; each hanging beam 12 is bound with two hanging ropes, two pin holes are arranged on two sides of the binding point of each hanging rope of each hanging beam 12, and two limiting bolts 13 used for clamping the hanging ropes at the binding points are arranged in the two pin holes. In other words, every two limit bolts 13 jointly clamp the lifting rope at the binding point of the lifting beam 12, and eight bolts jointly clamp four lifting ropes, so that the transverse position of the reinforcement cage is completely fixed.

Claims (4)

1. The utility model provides an equipment of accurate positioning foundation pile height and steel reinforcement cage position, it includes that steel protects a section of thick bamboo (1), its characterized in that: a radially outward convex limiting ring (2) is fixed on the side wall of the steel casing (1); the side wall of the steel casing (1) is also provided with a plurality of reinforcing rib plates (3), and the lower edge of each reinforcing rib plate (3) is fixed with the limiting ring (2); run through on spacing ring (2) and have a plurality of vertical holes, sliding fit has a bolt (4) in every vertical hole, every bolt (4) have a slip casting main entrance (5) along length direction through, be equipped with radial last spout (6) of round and the radial lower spout (7) of round in every bolt (4), the thick liquid is spout from spout (7) down and is formed end nodular form concrete (8), the thick liquid is spout (6) from last and is formed middle part nodular form concrete (9), spacing ring (2) are shelved on middle part nodular form concrete (9).

2. The apparatus for accurately positioning the height of foundation piles and the position of reinforcement cages according to claim 1, wherein: the reinforcing ribbed plates (3) are trapezoidal plates with large upper parts and small lower parts, the side wall of the steel casing (1) is also fixedly provided with a radially outward protruding support ring (10), and the upper edge of each reinforcing ribbed plate (3) is fixed with the support ring (10); two bubble type gradienters (15) which are vertical to each other are arranged on the support ring (10).

3. The apparatus for accurately positioning the height of foundation piles and the position of reinforcement cages according to claim 1, wherein: the top surface of the steel casing (1) is provided with two limiting grooves (11), each limiting groove (11) is composed of two pits positioned on the same straight line, and a hanging beam (12) is clamped in each limiting groove (11); every hanging beam (12) is bound with two lifting ropes, two pin holes are arranged on two sides of each binding point of every hanging beam (12), and two limiting bolts (13) used for clamping the lifting ropes at the binding points are arranged in the two pin holes.

4. The apparatus for accurately positioning the height of foundation piles and the position of reinforcement cages according to claim 1, wherein: and guide sleeves (14) which correspond to and are communicated with the vertical holes one by one are fixed on the limiting ring (2).

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