CN214363582U

CN214363582U - Plain concrete pile composite foundation

Info

Publication number: CN214363582U
Application number: CN202021423764.9U
Authority: CN
Inventors: 林月东; 黄春满; 林志军
Original assignee: Fujian Quancheng Survey Co ltd
Current assignee: Fujian Quancheng Survey Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-10-08
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a composite foundation of plain concrete pile in building foundation technical field, including plain concrete pile and the pile cap of multiunit landfill in the soil between the stake, multiunit plain concrete pile and pile cap are triangle array form and distribute, it is provided with the back up beam to build between adjacent two sets of pile caps, the top of locking plain concrete pile and pile cap is provided with the mattress pad layer, whole foundation bearing structure forms the triangle array structure of interconnect in the plane, when the ground takes place vibrations, can better resist the influence of eliminating vibrations to the ground structure steadiness, secondly, the back up beam is except being used for connecting the effect of each pile cap reinforcing steadiness, the mattress pad layer is directly laid at the back up beam top, can also be used for bearing the weight of the building load, be whole foundation multiple spot even atress, prevent that local pressure from too big and take place the foundation settlement scheduling problem.

Description

Plain concrete pile composite foundation

Technical Field

The utility model relates to a building foundation technical field specifically is a plain concrete pile composite foundation.

Background

With the rapid development of high-rise buildings, the requirements of the buildings on the strength and deformation of the foundation are continuously improved, the original natural foundation can not meet the design requirements generally, and in order to meet the requirements of the buildings on the strength and deformation of the foundation, a plain concrete pile composite foundation which has higher bearing capacity and can effectively reduce the deformation of the foundation and control the differential deformation is generally adopted. However, when the bearing capacity of the treated foundation soil is low, that is, the rigidity difference between the piles and the soil is too large, most of the load is born by the plain concrete piles, the load born by the soil among the piles is small, and the foundation settlement is increased due to relative delay.

For this reason, patent application number is CN 201420476084.1's utility model discloses a "plain concrete stake composite foundation", only rely on the pile cap lock to be connected between each plain concrete stake and the mattress pad layer in this foundation structure, when actual foundation takes place to shake, can not play better antidetonation effect.

Based on this, the utility model designs a plain concrete stake composite foundation to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plain concrete stake composite foundation to solve above-mentioned technical problem.

In order to realize the purpose, the utility model provides the following technical scheme: the utility model provides a plain concrete pile composite foundation, includes plain concrete pile and pile cap of multiunit landfill in soil between the stake, the multiunit plain concrete pile and pile cap are the distribution of triangular array form, and is adjacent two sets of it is provided with the reinforcing beam to put up between the pile cap, lock the foot the top of plain concrete pile and pile cap is provided with the mattress layer.

Preferably, the pile cap and the plain concrete pile are coaxially arranged, and a first buckling groove matched with the top end of the plain concrete pile in a buckling mode is formed in the bottom of the pile cap.

Preferably, the top of pile cap is provided with the lock joint boss, the bottom of mattress layer forms when watering with lock joint boss complex second lock joint groove.

Preferably, the fastening boss is of a frustum structure with a small upper part and a large lower part.

Preferably, six groups of third buckling grooves are formed in the circumferential array at the upper end of the circumferential side wall of the pile cap, and two ends of the reinforcing beam are buckled in the third buckling grooves on one side, corresponding to the two adjacent pile caps, of each group respectively.

Compared with the prior art, utility model's beneficial effect does:

the utility model discloses plain concrete pile composite foundation includes plain concrete pile and pile cap of multiunit landfill in soil between the stake, multiunit plain concrete pile and pile cap are the triangular array form and distribute, and it is provided with the back up beam to build between adjacent two sets of pile caps, make whole foundation bearing structure form the triangular array structure of interconnect in the plane, when the ground takes place vibrations, can resist the influence of eliminating vibrations to the ground structure steadiness better, secondly, the back up beam is except being used for connecting the effect of each pile cap reinforcing steadiness, the mattress pad layer is directly laid at the back up beam top, can also be used for bearing the weight of building load, be whole foundation multiple spot even atress, prevent that local pressure is too big and take place the foundation settlement scheduling problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

fig. 2 is a schematic cross-sectional top view of the present invention.

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. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides a technical solution: a plain concrete pile composite foundation comprises a plurality of groups of plain concrete piles 2 and pile caps 3 buried in soil 1 between piles, wherein the cross sections of the pile caps 3 are circular cross sections, the cross section diameter of each pile cap 3 is larger than that of each plain concrete pile 2, the pile caps 3 and the plain concrete piles 2 are arranged concentrically, the pile caps 3 with the circular cross sections are convenient to calculate and easy to construct, the effective bearing area is larger, the cross sections of the pile caps 3 can also be polygonal cross sections, such as rectangular, pentagonal, hexagonal, octagonal and the like, as long as the cross section area of each pile cap 3 is larger than that of each plain concrete pile 2, and the lower surface parts of the pile caps 3 can be in contact with the soil 1 between piles; the multiple groups of plain concrete piles 2 and the pile caps 3 are distributed in a triangular array shape, reinforcing beams 4 are erected between every two adjacent groups of pile caps 3, mattress layers 5 are arranged at the tops of the foot-locking plain concrete piles 2 and the pile caps 3, the mattress layers 5 are broken stone mattress layers, of course, the mattress layers 5 can also be composed of sand stones, slag, pebbles, lime soil and the like, and can also be plain concrete mattress layers.

Wherein, pile cap 3 sets up with plain concrete pile 2 is coaxial, the bottom of pile cap 3 is provided with the first lock joint groove 31 of 2 top lock joint cooperations of plain concrete pile, the top of pile cap 3 is provided with lock joint boss 32, the bottom of mattress layer 5 forms when watering with lock joint boss 32 complex second lock joint groove 51, lock joint boss 32 is big end down's frustum structure, six third lock joint grooves 33 of group have been seted up to the circumference lateral wall upper end circumference array of pile cap 3, the both ends of reinforcing beam 4 are respectively in the third lock joint groove 33 of the corresponding one side of two sets of adjacent pile caps 3.

The utility model discloses embodiment of specific application: the machine is in place, holes are formed according to the design requirement, and the holes are cleaned; then pouring plain concrete and vibrating to compact, and finishing the plain concrete pile 2; reserving a pile head, installing a pile cap template at the position of the pile head, and pouring to finish the pile cap 3; after the plain concrete piles 2 and the pile caps 3 are completed and meet the design requirements, a reinforcing beam 4 which is prefabricated and formed in advance is built between every two adjacent pile caps 3, after the reinforcing beam 4 is built, a broken stone mattress layer 5 is laid on the tops of the pile caps 3 and the reinforcing beam 4, the thickness of the mattress layer 5 is 20-30 cm, and the plain concrete pile composite foundation is formed together.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a plain concrete stake composite foundation which characterized in that: plain concrete stake (2) and pile cap (3) including the multiunit landfill in soil (1) between the stake, the multiunit plain concrete stake (2) and pile cap (3) are the distribution of triangular array form, and adjacent two sets of it is provided with reinforcing beam (4) to put up between pile cap (3), lock the foot the top of plain concrete stake (2) and pile cap (3) is provided with mattress layer (5).

2. A plain concrete pile composite foundation according to claim 1, characterised in that: pile cap (3) and plain concrete pile (2) coaxial setting, the bottom of pile cap (3) be provided with plain concrete pile (2) top lock joint complex first lock joint groove (31).

3. A plain concrete pile composite foundation according to claim 1, characterised in that: the top of the pile cap (3) is provided with a buckling boss (32), and the bottom of the mattress layer (5) forms a second buckling groove (51) matched with the buckling boss (32) during pouring.

4. A plain concrete pile composite foundation according to claim 3, characterised in that: the fastening lug boss (32) is of a frustum structure with a small upper part and a large lower part.

5. A plain concrete pile composite foundation according to claim 1, characterised in that: six groups of third buckling grooves (33) are formed in the circumferential array at the upper end of the circumferential side wall of the pile cap (3), and two ends of the reinforcing beam (4) are buckled in the three buckling grooves (33) on one side corresponding to the two adjacent groups of pile caps (3) respectively.