CN217679031U

CN217679031U - Prestressed concrete reducing tooth-shaped pile and die thereof

Info

Publication number: CN217679031U
Application number: CN202222094931.5U
Authority: CN
Inventors: 张武; 张良; 张吉晧; 黄志坚
Original assignee: Hunan Zhuogong Building Material Technology Co ltd
Current assignee: Hunan Zhuogong Building Material Technology Co ltd
Priority date: 2022-08-09
Filing date: 2022-08-09
Publication date: 2022-10-28
Anticipated expiration: 2032-08-09

Abstract

The utility model discloses a prestressed concrete reducing tooth-shaped pile and a mould thereof, wherein the prestressed concrete reducing tooth-shaped pile comprises a hollow columnar pile body, and two end parts, a plurality of fine-tooth transverse ribs and a plurality of coarse-tooth transverse ribs are arranged on the pile body; the two end parts are respectively arranged at the two ends of the pile body, and the plurality of thin-tooth transverse ribs and the plurality of thick-tooth transverse ribs are arranged between the two end parts; the two end parts are connected through a plurality of pile body longitudinal ribs which penetrate through a plurality of thin tooth transverse ribs and a plurality of thick tooth transverse ribs; the inner side surface of the pile body longitudinal rib is connected with the pile body. The utility model discloses a prestressed concrete reducing profile of tooth stake is under the same condition of stake type specification and length, because its characteristics that have the pile body reducing have increased pile body external surface area, makes it compare with other equal diameter hollow piles, can obtain bigger contact surface and the frictional force with the soil body, therefore the vertical bearing capacity of single pile can effectively improve.

Description

Prestressed concrete reducing tooth-shaped pile and mould thereof

Technical Field

The utility model belongs to the technical field of the building supporting construction, concretely relates to prestressed concrete reducing profile of tooth stake and mould thereof.

Background

The types of the vertical bearing piles applied in the prior art are as follows: prestressed pipe pile, bamboo joint pile and screw thread pile. The prestressed pipe pile is a prefabricated pile material which is widely applied in the current market and has the largest volume, the pile body is a pipe body with the completely same diameter, the outer surface is smooth, after construction, the frictional resistance provided by the pile and the soil around the pile is effective, and the high compression bearing capacity born by the high-strength pile body is greatly wasted.

Therefore, bamboo joint piles and screw-thread piles appear in the market in recent years, which are of variable cross-section piles developed for improving the circumferential frictional resistance of the piles, but have problems: the length of each section of the variable-section pile body section of the bamboo-joint pile is 1.5m-3m, and the length enables the peripheral surface area of the pile to be limited, so that the available peripheral friction resistance of the pile is limited. The thread shape of the thread of the pile body of the threaded pile is small, the distance between the threads is too small (about 50mm-80 mm), the breakage rate of the thread part of the pile body is extremely high, and the bearing capacity design requirement cannot be met after construction.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a simple structure, it is convenient to make, and the screw tooth part breakage rate of pile body is low when meetting stereoplasm clay layer, gravel layer construction, can satisfy the prestressed concrete reducing profile of tooth stake and the mould that the bearing capacity required.

The utility model adopts the technical proposal that: a prestressed concrete reducing tooth-shaped pile comprises a hollow columnar pile body, wherein two end parts, a plurality of fine-tooth transverse ribs and a plurality of coarse-tooth transverse ribs are arranged on the pile body; the two end parts are respectively arranged at the two ends of the pile body, and the plurality of thin-tooth transverse ribs and the plurality of thick-tooth transverse ribs are arranged between the two end parts; the two end parts are connected through a plurality of pile body longitudinal ribs, and the pile body longitudinal ribs penetrate through the plurality of fine-tooth transverse ribs and the plurality of coarse-tooth transverse ribs; the inner side surface of the pile body longitudinal rib is connected with the pile body.

In the prestressed concrete reducing tooth-shaped pile, a reinforcement cage is arranged in the pile body.

In the prestressed concrete reducing tooth-shaped pile, the cross section of the pile body is a circular ring or a hollow square; when the cross section of the pile body is a circular ring, the end part, the thin tooth transverse rib and the thick tooth transverse rib are circular; when the cross section of the pile body is hollow and square, the end part, the thin tooth transverse rib and the thick tooth transverse rib are square.

The die for the prestressed concrete reducing tooth-shaped pile comprises two half die plates which are coaxially spliced to form a die cavity; the inner wall surface of the half template is provided with a plurality of groups of inserts, each group of inserts is positioned in the same plane vertical to the axis of the half template, and the plurality of groups of inserts are respectively arranged corresponding to the grooves between the end part and the adjacent serration transverse rib, the grooves between the two adjacent serration transverse ribs and the grooves between the serration transverse rib and the adjacent coarse serration transverse rib.

In the die for the prestressed concrete reducing tooth-shaped pile, the die cavity is circular or square.

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

1. the utility model discloses a prestressed concrete reducing profile of tooth stake, under the same condition of stake type specification and length, because its characteristics that have the pile body reducing have increased pile body external surface area, make it compare with other equal diameter hollow piles, can obtain bigger contact surface with the soil body, therefore single pile bearing capacity can effectively improve. Meanwhile, the consumption of concrete can be reduced after the pile body is reduced, and the cost is reduced.

2. The utility model discloses a prestressed concrete reducing profile of tooth stake, its profile of tooth size sets up great, and profile of tooth cross rib is not fragile during the construction, can guarantee pile sinking back pile body integrality to satisfy the technical requirement of single pile design bearing capacity.

3. The utility model discloses a prestressed concrete reducing profile of tooth stake, every section pile body profile of tooth cross rib of its sets up to 1 thick for many thin, and the pile body is provided with many vertical ribs, sets up like this and can form rigidity atress frame jointly through fore-and-aft vertical rib and horizontal thick tooth mould rib, makes the bending resistance loss of pile body reducing department keep in less within range better to reach the equilibrium to the vertical resistance to compression of pile body and horizontal bending resistance ability.

4. The utility model discloses a mould of prestressed concrete reducing profile of tooth stake sets up a coarse tooth die rib at pile shaft section every 1 meter, do not set up in the mould that should correspond the department and insert, can regard as stretch-draw stroke district or mould pile extension district, place and implement production stretch-draw technology operation behind stretch-draw board (or the mould pile extension ware), can produce 5m to 18m, use the reducing profile of tooth stake of the arbitrary length of meter as the unit, can satisfy the long joining in marriage stake demand of engineering project to various stake completely.

5. The utility model discloses a mould of prestressed concrete reducing profile of tooth stake, its preparation method is simple, only need set for the steel that the position installation shape matches that corresponds at current tubular pile or hollow square pile mould inner wall insert can, the mould reforms transform low cost.

Drawings

Fig. 1 is a front view of an embodiment 1 of the prestressed concrete reducing tooth-shaped pile of the present invention.

Fig. 2 is a side view of the prestressed concrete reducing tooth-shaped pile according to embodiment 1 of the present invention.

Fig. 3 is a front view of embodiment 2 of the prestressed concrete reducing tooth-shaped pile of the present invention.

Fig. 4 is a side view of the prestressed concrete reducing tooth-shaped pile according to embodiment 2 of the present invention.

Fig. 5 is a front view of embodiment 3 of the prestressed concrete reducing tooth-shaped pile of the present invention.

Fig. 6 is a side view of the prestressed concrete reducing tooth-shaped pile according to embodiment 3 of the present invention.

Fig. 7 is a front view of the prestressed concrete reducing tooth-shaped pile according to embodiment 4 of the present invention.

Fig. 8 is a side view of the prestressed concrete reducing tooth-shaped pile according to embodiment 4 of the present invention.

Fig. 9 is a front view of embodiment 1 of the die for a prestressed concrete variable-diameter tooth-shaped pile according to the present invention.

Fig. 10 is a sectional view of the prestressed concrete variable diameter tooth pile according to embodiment 1 of the present invention.

Fig. 11 is a front view of embodiment 2 of the die for a prestressed concrete reducing tooth pile according to the present invention.

Fig. 12 is a sectional view of embodiment 2 of the die for a prestressed concrete variable-diameter tooth-shaped pile according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Prestressed concrete reducing tooth-shaped pile

Example 1

As shown in fig. 1-2, the prestressed concrete reducing tooth-shaped pile of the present invention includes a hollow square rectangular pile body, and a reinforcement cage 6 is disposed in the pile body. Two end parts 1, a plurality of fine tooth

transverse ribs

3 and 4 coarse tooth transverse ribs 4 are arranged on the pile body; two ends 1 are respectively arranged at two ends of the pile body, and a plurality of thin-tooth

transverse ribs

3 and 4 thick-tooth transverse ribs 4 are arranged between the two ends. The plurality of fine tooth transverse ribs 3 are divided into five groups, each group comprises three fine tooth transverse ribs 3, and a coarse tooth transverse rib 4 is arranged between two adjacent groups. The two ends are connected through four pile body longitudinal ribs 5, and the pile body longitudinal ribs 5 penetrate through the multiple thin-tooth transverse ribs 3 and the four thick-tooth transverse ribs 4. Four pile body longitudinal ribs 5 are arranged at the centers of four side surfaces of the pile body (as shown in figure 2), and the inner side surfaces of the pile body longitudinal ribs are connected with the pile body. The end part 1, the thin-tooth transverse rib 3 and the thick-tooth transverse rib 4 are square.

Example 2

As shown in fig. 3-4, the structure of the prestressed concrete reducing tooth-shaped pile of the present invention is similar to that of embodiment 1, and the difference is that four longitudinal ribs 5 are disposed at the four side edges of the pile body.

Example 3

As shown in fig. 5-6, the prestressed concrete reducing tooth-shaped pile of the present invention has a structure similar to that of embodiment 1, and is different from the structure in that two pile longitudinal ribs 5 are disposed on four sides of the pile body, and the two pile longitudinal ribs 5 are respectively disposed adjacent to two side edges of the side surface.

Example 4

As shown in fig. 7-8, the structure of the prestressed concrete reducing tooth-shaped pile of the present invention is similar to that of embodiment 1, and the difference is only that: the cross section of the pile body is a circular ring, four pile body longitudinal ribs 5 are arranged on the side face of the pile body and are uniformly arranged along the circumferential direction, and the end part 1, the thin-tooth transverse rib 3 and the thick-tooth transverse rib 4 are circular.

Die for prestressed concrete reducing tooth-shaped pile

Example 1

As shown in fig. 9-10, the utility model discloses a mould of prestressed concrete reducing profile of tooth stake, including two half-mould boards 7, the 7 cross-sections of half-mould board are the V-arrangement, and two coaxial amalgamation one-tenth mould die cavities of half-mould board 7, the mould die cavity is the square. The inner wall surface of the half template 7 is provided with a plurality of groups of inserts 8, each group of inserts 8 is positioned in the same plane vertical to the axis of the half template 7, and the plurality of groups of inserts 8 are respectively arranged corresponding to the grooves 2 between the end part 1 and the adjacent thin tooth transverse rib, the grooves between the two adjacent thin tooth transverse ribs 3 and the grooves between the thin tooth transverse rib 3 and the adjacent thick tooth transverse rib 4.

The production of the prestressed concrete reducing tooth-shaped pile with different pile body longitudinal ribs can be realized by adjusting the position and the shape of the insert 8 in the circumferential direction.

Example 2

As shown in fig. 11-12, the structure of the prestressed concrete reducing tooth-shaped pile mold of the present invention is similar to that of embodiment 1, and the difference is only that: the section of the half mould plate 7 is semicircular, and the mould cavity is circular.

Claims

1. A prestressed concrete reducing tooth-shaped pile is characterized in that: the pile comprises a hollow columnar pile body, wherein two end parts, a plurality of fine-tooth transverse ribs and a plurality of coarse-tooth transverse ribs are arranged on the pile body; the two end parts are respectively arranged at the two ends of the pile body, and the plurality of thin-tooth transverse ribs and the plurality of thick-tooth transverse ribs are arranged between the two end parts; the two end parts are connected through a plurality of pile body longitudinal ribs, and the pile body longitudinal ribs penetrate through the plurality of fine-tooth transverse ribs and the plurality of coarse-tooth transverse ribs; the inner side surface of the pile body longitudinal rib is connected with the pile body.

2. The prestressed concrete reducing tooth-shaped pile as claimed in claim 1, wherein: a reinforcement cage is arranged in the pile body.

3. The prestressed concrete reducing tooth-shaped pile as claimed in claim 1, wherein: the section of the pile body is circular or hollow square; when the cross section of the pile body is a circular ring, the end part, the thin tooth transverse rib and the thick tooth transverse rib are circular; when the cross section of the pile body is hollow and square, the end part, the thin-tooth transverse rib and the thick-tooth transverse rib are square.

4. A die for a prestressed concrete reducing tooth-shaped pile as claimed in any one of claims 1 to 3, wherein: the two half-mould plates are coaxially spliced to form a mould cavity; the inner wall surface of the half template is provided with a plurality of groups of inserts, each group of inserts is positioned in the same plane vertical to the axis of the half template, and the plurality of groups of inserts are respectively arranged corresponding to the grooves between the end part and the adjacent thin tooth transverse rib, the grooves between the two adjacent thin tooth transverse ribs and the grooves between the thin tooth transverse rib and the adjacent thick tooth transverse rib.

5. The die for the prestressed concrete reducing toothed pile as claimed in claim 4, wherein: the die cavity is round or square.