CN220117182U - U-shaped plate pile with improved performance - Google Patents

Abstract

The utility model relates to a U-shaped plate pile with improved performance, which comprises a pile body, wherein a plurality of main ribs and stirrups are arranged in the pile body, the pile body consists of a top part, waist parts which are positioned at the left side and the right side of the top part and extend downwards in a tilting manner, and lower flanges which are positioned at the bottoms of the two waist parts and extend outwards, and the top part and the two waist parts together enclose a positive groove part which extends along the length direction of the pile body; the method is characterized in that: the outer side face of each waist is provided with a convex upper flange extending along the length direction of the pile body, and the upper flanges and the lower flanges are arranged at intervals to form lateral groove parts extending along the length direction of the pile body. The arrangement of the upper flange increases the area of the cloth main rib, and the main rib can be additionally arranged at the position of the upper flange, so that the unilateral bending resistance can be greatly improved, and the unilateral bending resistance application characteristic of the revetment engineering is facilitated.

Description

U-shaped plate pile with improved performance

Technical Field

The utility model belongs to the technical field of pile foundation engineering of various building structure systems, and particularly relates to a U-shaped sheet pile with improved performance.

Background

The U-shaped sheet pile (also called as a Chinese character 'ji' shaped sheet pile) is increasingly widely used due to the advantages of good mechanical properties and convenient manufacture, and is particularly suitable for the enclosure of various buildings during construction, such as the repair of large-scale underground buildings, slopes, tunnels, port and dock walls, river bank protection and the like. The U-shaped plate pile comprises a pile body, wherein the pile body consists of a top, waists which are positioned at the left side and the right side of the top and extend downwards in a tilting manner, and lower flanges which are positioned at the bottoms of the two waists and extend outwards in a horizontal manner, and the cross section of the pile body is in a shape of a Chinese character 'ji' which consists of the top, the two waists and the two lower flanges; in order to facilitate the splicing of the several-shaped sheet piles together to form the protective wall, the side surface of one lower flange is provided with a convex rib extending along the length direction of the lower flange, and the side surface of the other lower flange is provided with a slot extending along the length direction of the lower flange, and the convex rib and the slot can be mutually inserted and spliced.

For example, chinese patent No. ZL201220102189.1 (bulletin No. CN 202543900U) for a concrete sheet pile with a waterproof joint, chinese patent No. ZL201620400951.2 (bulletin No. CN 205712069U) for a "several-shaped sheet pile for easy lifting", all disclose a U-shaped sheet pile with a rib-groove insertion structure.

The quality of the U-shaped sheet pile is directly influenced by the strength performance of the U-shaped sheet pile, so that main reinforcements and stirrups are arranged inside the U-shaped sheet pile, and how much the main reinforcements are distributed is an important factor influencing the strength performance of the U-shaped sheet pile. However, the U-shaped sheet pile has smaller width dimensions at the waist and the top and limited positions at the waist and the top in the areas where the ribs can be distributed, so that the overall strength and mechanical properties of the pile are deficient. The area of the top end of the pile body is small, and as the impact of the pile hammer is easy to generate cracks or corner damages on the top end of the pile body, the appearance of the enclosure is affected, and the structural performance of the U-shaped sheet pile is also affected.

In order to splice two adjacent piles as much as possible when piling, the side surfaces of the two flanges are respectively provided with the convex ribs and the slots, but the thickness of the flanges is limited, so that the cross sections of the convex ribs and the slots are smaller, and in the actual construction process, the convex ribs and the slots are difficult to be inserted and matched together, and the piles are easy to misplace. The water-stopping effect between the traditional U-shaped plate piles is poor, and the water-stopping pile is only suitable for being applied to shore protection projects with low water-stopping and seepage-preventing requirements.

In view of the above, the U-shaped sheet piles of conventional shape have advantages, but also disadvantages.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a U-shaped sheet pile with novel and reasonable structure and improved performance aiming at the prior art.

The technical scheme adopted for solving the technical problems is as follows: the U-shaped plate pile with improved performance comprises a pile body, wherein a plurality of main ribs and stirrups are arranged in the pile body, the pile body consists of a top part, waist parts which are positioned at the left side and the right side of the top part and extend obliquely downwards, and lower flanges which are positioned at the bottoms of the two waist parts and extend outwards, and the top part and the two waist parts form a positive groove part which is surrounded by the two waist parts together and extends along the length direction of the pile body; the method is characterized in that: the outer side face of each waist is provided with a convex upper flange extending along the length direction of the pile body, and the upper flanges and the lower flanges are arranged at intervals to form lateral groove parts extending along the length direction of the pile body.

Preferably, the cross section of the forward groove portion is semicircular or semi-elliptical. The forward groove part abandons the traditional trapezoid cross section and is changed into a semicircle or a semi-ellipse, so that the U-shaped sheet pile can be manufactured in a centrifugal forming mode, and two sheet piles can be obtained by one-step centrifugal forming; in addition, the semicircular or semi-elliptic forward groove part can strengthen the integral strength of the sheet pile, and especially solves the problem of stress concentration cracking at the position of a folding line in the U-shaped sheet.

Further improvement, the top surface of the upper flange is flush with the top surface of the top. The structure can increase the thickness of the upper flange as much as possible, is more beneficial to arranging main ribs in the upper flange, and can also increase the effective cross section area of the whole pile body.

Preferably, the outer end surface of the upper flange is an arched cambered surface or an inclined surface inclined outwards from top to bottom. The cambered surface or the inclined surface is convenient for demoulding.

Further improvement, the top surface of the top is provided with a back rib part which protrudes upwards and extends along the length direction of the pile body; the arrangement of the back rib can further enhance the bending resistance of the sheet pile. The left side surface and the right side surface of the back rib are inclined planes which incline outwards from top to bottom. The inclined plane is arranged to facilitate demoulding.

In a further improvement, a plurality of guide lugs which are arranged at intervals up and down are formed in one lateral groove part, the guide lugs are formed together with the lateral groove part, the guide lugs protrude out of the lateral groove part, and the protruding guide lugs can be inserted into the lateral groove parts which are not provided with the guide lugs in the adjacent other pile body to form a guide.

Compared with the traditional insertion guide of the convex ribs and the slots arranged on the lower flange, the guide area is larger, when the concrete slab pile is spliced to form the protective wall, the pile can be better combined, the damage rate of the lower flange is reduced, the surface area of the lower flange which is mutually abutted against the lower flange is larger, and the two adjacent piles can be spliced together smoothly and firmly; the guide lug is supported between two adjacent flanges, can form the support between two flanges, play the effect of strengthening and stabilizing the flange of both sides, and increase the intensity of pile body.

As an improvement, the bottom of the guide projection protruding out of the lateral groove part is provided with a slope inclined from top to bottom toward the bottom surface of the lateral groove part; the inclined plane is arranged, so that the sheet pile has soil squeezing effect during piling, and the piling is easier. The top surface of the guide lug at the uppermost end is flush with the top surface of the pile body. The structure makes the surface area of the pile head bigger, the stress is more uniform during piling, the pile head is not easy to be damaged, for example, the guide protruding block is lengthened along the pile length direction, and the striking resistance is enhanced during piling.

Further improved, the guide convex block is provided with a filling hole which is vertically communicated. The pouring hole has two functions, namely, the high-pressure water pipe can pass through the pouring hole when piling, and the high-pressure water can be impacted while piling, so that the piling is facilitated; after piling is completed, a spliced wall is formed, concrete can be poured into a space surrounded by the two opposite grooves through the pouring holes, and the waterproof spliced wall is formed and is suitable for being used as a foundation pit enclosure and an urban pipe gallery.

Preferably, the cross section of the lateral groove portion is large and small, and the cross section of the guide projection protruding out of the lateral groove portion is large and small. The guide lug with the small outside and the large inside is matched with the lateral groove part with the large outside and the small inside, so that the guide lug can be inserted into the lateral groove part more easily.

If no guide protruding block is arranged in the lateral groove part, a convex rib is arranged on the side surface of one lower flange along the length direction of the lower flange, a slot is arranged on the side surface of the other lower flange along the length direction of the lower flange, and the convex rib and the slot can be mutually inserted and spliced. In the shore protection process with lower requirements on water seepage of the other side, a certain piling guiding effect is formed on the shore protection process through the cooperation of the convex ribs and the slots, so that adjacent U-shaped plate piles are spliced with each other to form the protective wall.

Compared with the prior art, the utility model has the advantages that: the upper flange which is raised and extends along the length direction of the pile body is additionally arranged at the outer side of the waist of the traditional U-shaped plate pile, the area for distributing main ribs is increased, the main ribs can be additionally arranged at the upper flange, the unilateral bending resistance can be greatly improved, the unilateral bending resistance application characteristics of the revetment project are facilitated, the characteristics of double I-shaped piles are realized, the U-shaped plate pile with the small section height for improving the unilateral bending resistance replaces the original U-shaped plate pile with the non-improved large section height, and the application range of the small pile is widened; and the upper flange and the lower flange are arranged at intervals to form lateral groove parts extending along the length direction of the pile body, after piling, ground soil can enter the lateral groove parts at two sides, the firm degree of inserting the sheet pile into the soil for combination is increased, and the pile body is not easy to topple over after piling.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram showing a first embodiment of the present utility model;

FIG. 3 is a schematic perspective view of a second embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a second embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a third embodiment of the present utility model;

FIG. 6 is a schematic diagram showing a third embodiment of the present utility model;

FIG. 7 is a schematic perspective view of a third embodiment of the present utility model;

FIG. 8 is a schematic perspective view of a fourth embodiment of the present utility model;

fig. 9 is a schematic perspective view of a fourth embodiment of the present utility model;

fig. 10 is a schematic perspective view of a third embodiment of the present utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1-2, is a first embodiment of the present utility model.

A U-shaped plate pile with improved performance comprises a pile body 1 in which a plurality of main ribs and stirrups are arranged, wherein the main ribs can be steel bars or steel strands, one end of the pile body 1 is called a pile head, the opposite end is called a pile tail, the pile head refers to the end of the pile body 1 contacted with a pile hammer of a pile driver, and the pile tail refers to the end of the pile body 1 which is inserted into the ground first. The pile body 1 consists of a top 11, waist parts 12 which are positioned at the left side and the right side of the top 11 and extend obliquely downwards, and lower flanges 13 which are positioned at the bottoms of the two waist parts 12 and extend outwards, wherein the top 11 and the two waist parts 12 together enclose a positive groove part 2 which extends along the length direction of the pile body 1; the cross section of the forward recess portion 2 in this embodiment is semicircular or semi-elliptical.

The outer side surface of each waist 12 is provided with an upper flange 15 protruding and extending along the length direction of the pile body 1, and the upper flanges 15 and the lower flanges 13 are arranged at intervals to form lateral groove parts 3 extending along the length direction of the pile body 1. The top surface of the upper flange 15 is flush with the top surface of the top 11.

The outer end surface of the upper flange 15 in this embodiment is an arched surface or an inclined surface inclined outward from top to bottom.

In the two lower flanges 13 of the pile body 1 in this embodiment, a rib 5 is disposed on a side surface of one lower flange 13 along a length direction thereof, and a slot 6 is disposed on a side surface of the other lower flange 13 along a length direction thereof, where the rib 5 and the slot 6 can be mutually inserted and spliced.

The upper flange 15 which is raised and extends along the length direction of the pile body is additionally arranged on the outer side of the waist 12 of the traditional U-shaped plate pile, the area for distributing main ribs is increased, and the main ribs can be additionally arranged at the position of the upper flange 15, so that the unilateral bending resistance can be greatly improved, the unilateral bending resistance application characteristics of the revetment engineering are facilitated, and the characteristics of the double I-shaped piles are realized; furthermore, the upper flange 15 and the lower flange 13 are arranged at intervals to form the lateral groove parts 3 extending along the length direction of the pile body, after piling, ground soil can enter the lateral groove parts 3 at two sides, the firm degree of the combination of the sheet piles inserted into the soil is increased, and the pile body 1 is not easy to topple over after piling.

As shown in fig. 3-4, is a second embodiment of the present utility model.

The present embodiment differs from the first embodiment in that: the top surface of the top 11 is provided with a back rib 14 which protrudes upwards and extends along the length direction of the pile body; the left and right sides of the back rib 14 are inclined surfaces inclined outwards from top to bottom.

As shown in fig. 5 to 7, a third embodiment of the present utility model is shown.

A U-shaped plate pile with improved performance comprises a pile body 1 in which a plurality of main ribs and stirrups are arranged, wherein one end of the pile body 1 is called a pile head, the opposite end is called a pile tail, the pile head is the end of the pile body 1 contacted with a pile hammer of a pile driver, and the pile tail is the end of the pile body 1 which is inserted into the ground first. The pile body 1 consists of a top 11, waist parts 12 which are positioned at the left side and the right side of the top 11 and extend obliquely downwards, and lower flanges 13 which are positioned at the bottoms of the two waist parts 12 and extend outwards, wherein the top 11 and the two waist parts 12 together enclose a positive groove part 2 which extends along the length direction of the pile body 1; the cross section of the forward recess portion 2 in this embodiment is semicircular or semi-elliptical.

The outer side surface of each waist 12 is provided with an upper flange 15 protruding and extending along the length direction of the pile body 1, and the upper flange and the lower flange 13 are arranged at intervals to form a lateral groove part 3 extending along the length direction of the pile body 1. The top surface of the upper flange 15 is flush with the top surface of the top 11.

One of the side direction groove parts 3 is internally provided with a plurality of guide lugs 4 which are arranged at intervals up and down, the guide lugs 4 are formed together with the side direction groove parts 3, the guide lugs 4 protrude out of the side direction groove parts 3, and the protruding guide lugs 4 can be inserted into the side direction groove parts 3 which are adjacent to the other pile body 1 and are not provided with the guide lugs 4 to form a guide.

The bottom of the guide projection 4 protruding the lateral groove part 3 has a slope 41 inclined toward the bottom surface of the lateral groove part 3 from top to bottom; the top surface of the guide lug 4 at the uppermost end is flush with the top surface of the pile body 1. The cross section of the lateral groove part 3 is in a shape with large outside and small inside, and the cross section of the guide lug 4 protruding out of the lateral groove part 3 is in a shape with small outside and large inside. The guide lug 4 is provided with a filling hole 7 which is vertically communicated.

The guide convex blocks 4 can be inserted into the lateral groove parts 3 which are not provided with the guide convex blocks 4 in the adjacent other pile bodies 1 to form guide, the guide area is larger, the combination between piles is better, the damage rate of lower flanges is reduced, the surface areas of the lower flanges which are mutually abutted against each other are larger, and the two adjacent piles can be spliced together smoothly and firmly; the guide lug 4 is supported between the upper flange 15 and the lower flange 13, can form a support between the upper flange 15 and the lower flange 13, plays a role in strengthening and stabilizing the upper flange 15 and the lower flange 13, and increases the strength of the pile body 1.

As shown in fig. 8 to 10, a fourth embodiment of the present utility model is shown.

The present embodiment is different from the third embodiment in that: the top surface of the top 11 is provided with a back rib 14 which protrudes upwards and extends along the length direction of the pile body; the left and right sides of the back rib 14 are inclined surfaces inclined outwards from top to bottom.

It should be noted that, in the description of the present embodiment, the directions or positional relationships indicated by the terms "front, rear", "left, right", "inner, outer", "upper, lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims (10)

1. The U-shaped plate pile with improved performance comprises a pile body (1) in which a plurality of main ribs and stirrups are arranged, wherein the pile body (1) consists of a top (11), waist parts (12) which are positioned at the left side and the right side of the top (11) and extend downwards in a tilting manner, and lower flanges (13) which are positioned at the bottoms of the two waist parts (12) and extend outwards, and the top (11) and the two waist parts (12) are enclosed together to form a forward groove part (2) which extends along the length direction of the pile body (1); the method is characterized in that: the outer side surface of each waist (12) is provided with an upper flange (15) which protrudes and extends along the length direction of the pile body (1), and the upper flanges (15) and the lower flanges (13) are arranged at intervals to form lateral groove parts (3) which extend along the length direction of the pile body (1).

2. The performance-improved U-shaped sheet pile of claim 1, wherein: the cross section of the positive groove part (2) is semicircular or semi-elliptic.

3. The performance-improved U-shaped sheet pile of claim 1, wherein: the top surface of the upper flange (15) is flush with the top surface of the top (11).

4. A performance improving U-shaped sheet pile according to claim 3, characterised in that: the outer end face of the upper flange (15) is an arched cambered surface or an inclined plane which is inclined outwards from top to bottom.

5. The performance-improved U-shaped sheet pile of claim 1, wherein: the top surface of the top part (11) is provided with a back rib part (14) which protrudes upwards and extends along the length direction of the pile body; the left and right sides of the back rib (14) are inclined planes which incline outwards from top to bottom.

6. A performance-improved U-shaped sheet pile according to any one of claims 1 to 5, characterised in that: one of the side direction groove parts (3) is internally provided with a plurality of guide lugs (4) which are arranged at intervals from top to bottom, the guide lugs (4) are formed together with the side direction groove parts (3), the guide lugs (4) protrude out of the side direction groove parts (3), and the protruding guide lugs (4) can be inserted into the side direction groove parts (3) which are adjacent to the other pile body (1) and are not provided with the guide lugs (4) to form guidance.

7. The performance-improved U-shaped sheet pile of claim 6, wherein: the bottom of the guide lug (4) protruding out of the lateral groove part (3) is provided with an inclined surface (41) inclined towards the bottom surface of the lateral groove part (3) from top to bottom; the top surface of the guide lug (4) positioned at the uppermost end is flush with the top surface of the pile body (1).

8. The performance-improved U-shaped sheet pile of claim 6, wherein: the guide lug (4) is provided with a filling hole (7) which is vertically communicated.

9. The performance-improved U-shaped sheet pile of claim 6, wherein: the cross section of the lateral groove part (3) is in a shape with large outside and small inside, and the cross section of the guide lug (4) protruding out of the lateral groove part (3) is in a shape with small outside and large inside.

10. The performance-improved U-shaped sheet pile of claim 1, wherein: in the two lower flanges (13) of the pile body (1), a convex rib (5) is arranged on the side surface of one lower flange (13) along the length direction of the lower flange, a slot (6) is arranged on the side surface of the other lower flange (13) along the length direction of the lower flange, and the convex rib (5) and the slot (6) can be mutually inserted and spliced.