CN214738217U

CN214738217U - A concrete pipe pile

Info

Publication number: CN214738217U
Application number: CN202022562838.3U
Authority: CN
Inventors: 官觉芬
Original assignee: Shanghai Yuansu Foundation Engineering Co ltd
Current assignee: Shanghai Yuansu Foundation Engineering Co ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-11-16
Anticipated expiration: 2030-11-09

Abstract

The utility model discloses a concrete pipe pile, comprising a column body, a bearing platform and a pile tip. The bottom of the bearing platform is fixedly connected with the pile tip through expansion screws, and the upper surface of the bearing platform is installed with a second base through a second base. The column body is provided with a stiffening steel plate through a first base, and the stiffening steel plate and the first base are fixedly connected through a metal support block. The utility model adopts two sets of metal support blocks evenly installed around the stiffening steel plate and the first base, the metal support blocks play a supporting and stable role, and prevent the device from cracking due to excessive bearing pressure, and the device from collapsing due to inclination. Therefore, the stability of the device is increased. The anti-corrosion layer poured with epoxy resin and coal tar pitch is installed on the outer ring of the cylinder, which can effectively prevent the problem of reducing the service life of the device caused by wind and rain. Oxidation damage causes erosion to the column, which improves the service life of the concrete pipe pile and the practicability of the device.

Description

Concrete pipe pile

Technical Field

The utility model relates to a building trade tubular pile installation application technical field specifically is a concrete pipe pile.

Background

In the construction process of buildings, the application of the pipe pile is more and more extensive. The horizontal bearing capacity of the traditional tubular pile is only about 1/60 of the vertical bearing capacity. In some projects which have requirements on horizontal bearing capacity, such as foundation pits, side slopes, embankments, soft soil areas and building pile foundations with high requirements on earthquake resistance grades, the use of the tubular piles has great limitation. The bending resistance of the prestressed concrete pipe pile is poor, the failure mode is brittle failure, the prestressed concrete pipe pile is rapidly expanded after cracking, the tensile steel bar quickly reaches the yield limit, the limit bending moment and the cracking bending moment are not much different, and a concrete pipe pile is needed at present, but the existing concrete pipe pile has many problems or defects:

1. the traditional concrete pipe pile has the advantages of high foundation cost, long construction period, poor stability and easy oxidation and damage when being installed; 2. the bearing capacity of the driven tubular pile is not high, the friction between the pile tip and the soil layer is low, the column body is easy to incline, and the service performance of the device is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concrete pipe pile to solve the problem at the bottom of the bearing capacity of the lift-off pipe pile among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a concrete pipe pile, includes cylinder, cushion cap and stake point, expansion screw and stake point fixed connection are passed through to the bottom of cushion cap, the upper surface of cushion cap has the cylinder through the second pedestal mounting, install the steel sheet of putting more energy into through first base on the cylinder, and put more energy into through metal support piece fixed connection between steel sheet and the first base.

Preferably, tapered steel stake point is installed to stake point bottom, and the internally mounted who installs steel thorn stake point around the stake point has the muddy earth bed course, and muddy earth bed course internally mounted has the filling layer.

Preferably, four pile sections are arranged on the outer part of the column body.

Preferably, the anticorrosive coating is installed to the cylinder outer lane, and the anticorrosive coating internally mounted has the steel reinforcement frame, the steel sheet is installed through the buffer layer to steel reinforcement frame inside, install muddy soil layer in the steel sheet, and mix the intraformational evenly distributed of earth and have the spiral reinforcement, mix and install the inner circle in the earth layer.

Compared with the prior art, the utility model discloses an innovation point effect of design is: the concrete pipe pile has reasonable structure and the following advantages:

(1) the two groups of metal supporting blocks are uniformly arranged on the periphery of the stiffening steel plate and the first base, and play a role in supporting stably, so that the phenomenon that the device collapses due to the fact that the device is inclined and cracks caused by overlarge bearing pressure are prevented, the stability of the device is improved, an anticorrosive coating poured by epoxy resin and coal tar pitch is arranged on the outer ring of the cylinder, the problem that the service life of the device is shortened due to wind, rain and rain is blown can be effectively prevented, the corrosion of the cylinder caused by oxidative damage can be prevented, and the service life of the concrete tubular pile and the practicability of the device are improved;

(2) the conical steel pile tip arranged on the pile tip can play a certain protective role on the pile tip when a cone is inserted into soil, ensure the verticality of a pile body and improve the service performance of the device; the device is used in cooperation with the whole body, so that the tubular pile is stable and reliable, the construction speed is fast, the construction period is short, the construction site is civilized and pollution-free, the bearing capacity of a single pile is high, the bending resistance and seismic resistance of the tubular pile are improved, and the manufacturing cost is relatively low.

Drawings

Fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic front view of the cross-sectional structure of the present invention;

fig. 3 is a schematic sectional view of the present invention.

In the figure: 1. a cylinder; 101. a first base; 102. a stiffened steel plate; 103. a second base; 104. pile sections; 105. a metal support block; 2. a bearing platform; 3. pile tip; 301. an expansion screw; 302. a concrete cushion layer; 303. steel pricks; 304. a filling layer; 305. a conical steel pile tip; 4. a reinforcing steel bar frame; 5. an anticorrosive layer; 6. A buffer layer; 7. a steel plate; 8. a muddy soil layer; 9. spiral reinforcing steel bars; 10. and an inner ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a concrete pipe pile, including cylinder 1, cushion cap 2 and stake point 3,

expansion screw

301 and 3 fixed connection of stake point are passed through to the bottom of cushion cap 2, the fastness of improvement device, awl shaped steel stake point 305 is installed to 3 bottoms of stake point, can play certain protective action to the stake point when inserting the centrum in earth, and guarantee the perpendicular of pile body, make the performance of device improve, install steel thorn 303 around stake point 305, when the stake point gets into soil layer, make the area of contact increase of stake point and soil layer, the frictional force reinforcing, thereby the stability of cylinder has been increased, the internally mounted of stake point 305 has concrete bed course 302, concrete bed course 302 internally mounted has filling layer 304, guarantee the fastness of device, prevent to be corroded in the soil.

The upper surface of the bearing platform 2 is provided with a cylinder 1 through a second base 103, the cylinder 1 is embedded and arranged in the second base 103, the stability is improved, four pile sections 104 are arranged outside the cylinder 1, an anti-corrosion layer 5 is arranged outside the cylinder 1, the anti-corrosion layer poured by epoxy resin and coal tar pitch is arranged outside the cylinder, the problem of the reduction of the service life of the device caused by wind, wind and rain can be effectively prevented, the corrosion of the cylinder caused by oxidation damage can also be prevented, the service life of the concrete pipe pile and the practicability of the device are improved, a reinforcing steel bar frame 4 is arranged inside the anti-corrosion layer 5, the firmness of the device is improved, the pressure can be uniformly dispersed, a steel plate 7 is arranged inside the reinforcing steel bar frame 4 through a buffer layer 6, the bearing capacity and the stability of the reinforcing device are improved, a concrete layer 8 is arranged inside the steel plate 7, and spiral reinforcing steel bars 9 are uniformly distributed in the concrete layer 8, an inner ring 10 is arranged in the muddy soil layer 8, a stiffening steel plate 102 is arranged on the column body 1 through a first base 101, the stiffening steel plate 102 is fixedly connected with the first base 101 through a metal supporting block 105, and the metal supporting block 105 plays a supporting role between the stiffening steel plate 102 and the first base 101, so that the device is prevented from collapsing due to cracks and inclination caused by overlarge bearing pressure, and the stability of the device is improved; the device is used in cooperation with the whole body, so that the tubular pile is stable and reliable, the construction speed is fast, the construction period is short, the construction site is civilized and pollution-free, the bearing capacity of a single pile is high, the bending resistance and seismic resistance of the tubular pile are improved, and the manufacturing cost is relatively low.

The working principle is as follows: during the use, at first transport the construction site with basic device, it is fixed with expansion screw 301 with cushion cap 2 and stake point 3, second base 103 through installation on cushion cap 2 is connected with the cylinder 1 and is installed, cylinder 1 is connected with stiffening steel sheet 102 through first base 101 in the top, and fixed with screw and top object, when inserting cylinder 1 underground, will guarantee that the position direction is correct, probably the volume of sinking is great during the initial beating, should take low hammer of carrying, light beat, along with sinking the stake deepening, the sinking speed slows down, the hammer height of lifting can crescent. In the whole piling process, the pile hammer, the pile cap and the pile body are kept on the same axis as much as possible. If necessary, the direction of the pile hammer and the guide rod of the pile frame should be adjusted according to the direction of the pile body. Care should be taken not to make the tube pile eccentrically hammered as much as possible to avoid the tube pile being subjected to bending. When the pile is difficult to sink, whether the drop hammer has inclined eccentricity or not needs to be checked, and particularly whether the pile pad pile cap is suitable or not needs to be checked. If not, the cushion needs to be replaced or replenished. Each pile is driven continuously without interruption, so that the pile is difficult to drive continuously. The pile tip 3 below the column body 1 is driven into the ground, and finally, the top end of the pile is connected with an object to be borne.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A concrete pipe pile, comprising a column (1), a cap (2) and a pile tip (3), characterized in that: the bottom of the cap (2) is connected to the pile tip (301) through an expansion screw (301). 3) Fixed connection, the upper surface of the support platform (2) is installed with a cylinder (1) through the second base (103), and a stiffener is installed on the cylinder (1) through the first base (101). A steel plate (102), and the stiffening steel plate (102) and the first base (101) are fixedly connected through a metal support block (105).

2. A concrete pipe pile according to claim 1, characterized in that: a tapered steel pile tip (305) is installed at the bottom of the pile tip (3), and steel thorns are installed around the tapered steel pile tip (305). (303), a concrete cushion (302) is installed inside the tapered steel pile tip (305), and a filling layer (304) is installed inside the concrete cushion (302).

3 . The concrete pipe pile according to claim 1 , wherein four pile sections ( 104 ) are installed on the outside of the column body ( 1 ). 4 .

4. A concrete pipe pile according to claim 1, characterized in that: an anti-corrosion layer (5) is installed on the outer ring of the cylinder (1), and a steel frame (4) is installed inside the anti-corrosion layer (5). , a steel plate (7) is installed inside the steel frame (4) through the buffer layer (6), a concrete layer (8) is installed in the steel plate (7), and spirals are evenly distributed in the concrete layer (8). A steel bar (9), an inner ring (10) is installed in the concrete layer (8).