CN216739721U - Tubular pile and raft connecting structure with common pile soil stress - Google Patents

Abstract

The utility model relates to a tubular pile and raft board connecting structure with jointly stressed pile soil, belonging to the technical field of buildings, comprising a tubular pile, wherein one end of the tubular pile is arranged in a soil layer, and the other end of the tubular pile is arranged outside the soil layer; the raft plates are arranged at one ends of the tubular piles extending out of the soil layer and connected with each other; and the common stress piece is arranged between the raft and the tubular pile and is used for simultaneously transmitting the load on the raft to the tubular pile and the soil layer through the raft so as to jointly stress the tubular pile and the soil layer. According to the connecting structure, the upper main body load is simultaneously transmitted to the soil and the piles between the piles through the raft, so that the common stress state of the piles and the soil is more easily achieved; when the pile head is level with the cushion layer, the waterproof material can be formed in one step when being laid outside a building, and the waterproof structure of the pile head of the pipe pile does not need to be processed independently.

Description

Tubular pile and raft connecting structure with common pile soil stress

Technical Field

The utility model relates to the technical field of buildings, in particular to a tubular pile and raft connecting structure with jointly stressed pile soil.

Background

At present, in order to pursue the use effect of an indoor space, a high-rise building is usually realized by limiting the thickness of a shear wall to be equal to that of a brick wall masonry, bearing a larger load by a bottom shear wall than an upper shear wall and only lengthening the length of the shear wall and improving the strength grade of concrete under the condition of the same thickness. When the independent pile foundation is arranged, the foundations of a plurality of shear walls often collide with each other to form a partial independent pile foundation and a partial combined pile foundation. For the high-rise buildings with foundation bases in good soil layers such as cohesive soil layers or completely weathered soil layers, when the bearing capacity of the pure soil is not enough to meet the bearing requirement, the pile-raft foundation with the jointly stressed piles and soil is more economical and applicable.

The common method is that the tubular piles are anchored into a raft cushion cap by 50-100mm, and when the cushion layer is constructed and the waterproof layer is laid, the raft concrete is poured after each tubular pile head is treated with the waterproof joint. When the foundation is stressed, the stress is firstly transmitted to the tubular piles embedded into the raft plates, and after the piles are pressed to deform and squeeze soil, the soil begins to play a bearing role, and the stress of the soil body is lagged behind that of the piles. Because the raft has more pile heads, the waterproof treatment is relatively complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tubular pile and raft connecting structure with jointly stressed pile soil, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a tubular pile and raft connection structure of common atress of stake soil, includes:

one end of the pipe pile is arranged in the soil layer, and the other end of the pipe pile is arranged outside the soil layer;

the raft plates are arranged at one ends of the tubular piles extending out of the soil layer and connected with each other;

and the common stress piece is arranged between the raft and the tubular pile and is used for simultaneously transmitting the load on the raft to the tubular pile and the soil layer through the raft so as to jointly stress the tubular pile and the soil layer.

As a further aspect of the present invention, the common force receiving member includes:

the sand and stone distribution cushion layer is arranged outside the tubular pile and is connected with the soil layer;

the plain bolt cushion layer is arranged outside the tubular pile and connected with the sand and stone distribution cushion layer;

the building waterproof layer sets up the plain bolt bed course is kept away from one side of joining in marriage the grit bed course and is linked to each other with the one end that the tubular pile stretches out the soil layer, the building waterproof layer sets up between raft and tubular pile.

As a further technical solution of the present invention, the tubular pile includes:

a tube body;

the thick round steel plate is fixedly arranged in the pipe body;

and the micro-expansion concrete is arranged on one side of the thick round steel plate close to the raft plate.

As a further technical solution of the present invention, the tubular pile further comprises:

and one end of each bent longitudinal rib is arranged in the micro-expansion concrete, and the other end of each bent longitudinal rib is arranged outside the tube body close to one end of the raft.

As a further technical solution of the present invention, the tubular pile further comprises:

and the stirrups are arranged in the micro-expansion concrete, and two ends of each stirrup are fixedly connected with the two bent longitudinal bars respectively.

Compared with the prior art, the utility model has the beneficial effects that:

1. the load of the upper main body is simultaneously transmitted to the soil and the piles among the piles through the raft plates, so that the common stress state of the piles and the soil is more easily achieved;

2. when the pile head is level with the cushion layer, the waterproof material can be formed in one step when being laid outside a building, and the waterproof structure of the pile head of the pipe pile does not need to be processed independently.

Drawings

FIG. 1 is a cross-sectional view of a connection structure of a pipe pile and a raft plate under the common force of pile soil;

FIG. 2 is a cross-sectional view of a tubular pile in a raft connection structure with the pile soil jointly stressed;

FIG. 3 is a top view of a thick round steel plate in the raft plate connection structure with the pile soil jointly stressed;

fig. 4 is a top view of bending longitudinal bars in the connection structure of the pile and raft plate, which is stressed by the pile soil together.

In the figure: 1-raft, 2-tubular pile, 21-tubular body, 22-thick round steel plate, 23-bending longitudinal bar, 24-stirrup, 25-micro expansion concrete, 3-soil layer, 4-common stress piece, 41-sand-matching cushion layer, 42-plain bolt cushion layer and 43-building waterproof layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The embodiment of the utility model is realized in such a way that the structure for connecting the pile and the raft with the jointly stressed pile and soil, as shown in figure 1, comprises:

one end of the tubular pile 2 is arranged in the soil layer 3, and the other end of the tubular pile is arranged outside the soil layer 3;

the raft plate 1 is arranged at one end of the tubular pile 2 extending out of the soil layer 3 and connected with the tubular pile;

and the common stress piece 4 is arranged between the raft plate 1 and the tubular pile 2 and is used for simultaneously transmitting the load on the raft plate 1 to the tubular pile 2 and the soil layer 3 through the raft plate 1 so as to jointly stress the tubular pile 2 and the soil layer 3.

In practical application, the common stress piece 4 is arranged, so that pile-soil common stress is carried out when the raft plate 1 is connected with the tubular pile 2, namely, the upper main body load is simultaneously transmitted to the soil between piles and the piles through the raft plate 1, the common stress state of the piles and the soil is more easily achieved, and the device is more practical.

As shown in fig. 1, as a preferred embodiment of the present invention, the common force receiving member 4 includes:

the sand and stone distribution cushion layer 41 is arranged outside the tubular pile 2 and is connected with the soil layer 3;

the plain bolt cushion layer 42 is arranged outside the tubular pile 2 and is connected with the sand-mixing cushion layer 41;

and the building waterproof layer 43 is arranged on one side of the plain bolt cushion layer 42, which is far away from the sand-mixing cushion layer 41, and is connected with one end of the tubular pile 2, which extends out of the soil layer 3, and the building waterproof layer 43 is arranged between the raft board 1 and the tubular pile 2.

In one case of the embodiment, in order to effectively exert the common stress characteristic of the pile soil, after the foundation is excavated to the bearing soil layer 3, artificial graded gravel is paved and compacted; sawing 2 ends of the tubular pile to a designed elevation; constructing a C15 plain concrete cushion layer; constructing a raft 1 foundation after laying an external waterproof layer of a building; when the pile head and the cushion layer are level, the building external waterproof material can be formed in one step when being laid, the waterproof structure of the pile head of the tubular pile 2 does not need to be processed independently, and the building external waterproof material is more convenient and practical.

As shown in fig. 2 to 4, as another preferred embodiment of the present invention, the tube pile 2 includes:

a tube body 21;

the thick round steel plate 22 is fixedly arranged in the pipe body 21;

the micro-expansion concrete 25 is arranged on one side of the thick round steel plate 22 close to the raft plate 1;

one end of each bent longitudinal rib 23 is arranged in the micro-expansion concrete 25, and the other end of each bent longitudinal rib is arranged outside one end, close to the raft plate 1, of the pipe body 21;

and the stirrup 24 is arranged in the micro-expansion concrete 25, and two ends of the stirrup 24 are respectively fixedly connected with the two bent longitudinal bars 23.

In the one aspect of this embodiment, through setting up thick round steel plate 22, make things convenient for the bored concrete pile head to fill out the core concrete, tie bed course 42 thick little expansion concrete 25 of flattening 2 pile heads of tubular pile in the construction, buckle and indulge muscle 23 and stirrup 24 cooperation formation steel reinforcement cage and can further improve bulk strength, it is more practical.

The working principle is as follows: after the field is leveled, firstly beating the PHC tubular pile 2 according to the design requirement; after the pipe pile 2 is detected to be qualified, excavating the foundation to a holding soil layer 3 required by the design; cutting off the pile head of the tubular pile 2 to the height of the bottom of the raft plate 1, additionally arranging a reinforcement cage within 1.5 m of the pipe wall of the pile top according to the pile top structure, and pouring C35 micro-expansion concrete 25; after the bearing capacity of the bearing soil layer 3 is detected to be qualified, paving and filling 300-thick artificial graded sandstone and compacting, wherein the compaction coefficient is not less than 0.94; pouring a C15 plain concrete cushion layer and leveling the pile head of the tubular pile 2; and constructing a raft 1 foundation after laying an external waterproof layer of the building.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides a tubular pile and raft connection structure of common atress of stake soil, its characterized in that includes:

one end of the pipe pile is arranged in the soil layer, and the other end of the pipe pile is arranged outside the soil layer;

the raft plates are arranged at one ends of the tubular piles extending out of the soil layer and connected with each other;

and the common stress piece is arranged between the raft plate and the tubular pile and is used for simultaneously transmitting the load on the raft plate to the tubular pile and the soil layer through the raft plate so as to jointly stress the tubular pile and the soil layer.

2. The pile-soil commonly stressed pipe pile and raft connection structure of claim 1, wherein the common stress member comprises:

the sand and stone distribution cushion layer is arranged outside the tubular pile and is connected with the soil layer;

the plain bolt cushion layer is arranged outside the tubular pile and connected with the sand and stone distribution cushion layer;

the building waterproof layer sets up the plain bolt bed course is kept away from one side of joining in marriage the grit bed course and is linked to each other with the one end that the tubular pile stretches out the soil layer, the building waterproof layer sets up between raft and tubular pile.

3. The pile-soil co-stressed tubular pile and raft connection structure of claim 1, wherein the tubular pile comprises:

a pipe body;

the thick round steel plate is fixedly arranged in the pipe body;

and the micro-expansion concrete is arranged on one side of the thick round steel plate close to the raft plate.

4. The pile-soil co-stressed tubular pile and raft connection structure of claim 3, wherein the tubular pile further comprises:

and one end of each bent longitudinal rib is arranged in the micro-expansion concrete, and the other end of each bent longitudinal rib is arranged outside the pipe body close to one end of the raft.

5. The pile-soil co-stressed tubular pile and raft connection structure of claim 4, wherein the tubular pile further comprises:

and the stirrups are arranged in the micro-expansion concrete, and two ends of each stirrup are fixedly connected with the two bent longitudinal bars respectively.

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