CN211773573U

CN211773573U - Pile cap structure for steel pipe pile

Info

Publication number: CN211773573U
Application number: CN202020173024.8U
Authority: CN
Inventors: 朱亨思; 吴安康; 郑文钦; 江航
Original assignee: Fujian Fuyuan Construction Engineering Co ltd
Current assignee: Fujian Fuyuan Construction Engineering Co ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-10-27
Anticipated expiration: 2030-02-14

Abstract

The utility model relates to a pile cap structure for steel-pipe pile relates to steel-pipe pile technical field, has solved the problem that appears sliding between tubular pile and the pile cap, and its technical scheme main points are: the body including pile cap, the body includes barrel and cover, barrel week side inner wall is close to the cover part and is provided with the backup pad, form installation space between backup pad and the cover, installation space is provided with the supporting shoe, the supporting shoe bottom is fixed in the backup pad top, the supporting shoe top is fixed in the cover bottom, the backup pad symmetrical slip has the support column, the support column inclines in opposite directions and is provided with the clamp plate that is used for pressing from both sides tight tubular pile periphery side respectively, installation space is provided with and is used for driving support column syntropy or gliding adjustment mechanism dorsad simultaneously, has the advantage that appears sliding between reduction tubular pile and the pile cap.

Description

Pile cap structure for steel pipe pile

Technical Field

The utility model belongs to the technical field of the steel-pipe pile technique and specifically relates to a pile cap structure for steel-pipe pile is related to.

Background

The prestressed concrete pipe pile has the advantages of reliable quality, low construction cost, high construction speed and the like, and is widely used in foundation engineering. During construction, a pile driver is generally adopted to drive the tubular pile into the ground or press the tubular pile into the ground by static force, and the action force of the pile driver during pile driving is large, so that the phenomena of breaking the pile head, locally dropping concrete outside the pile and the like often occur, in order to overcome the phenomena, the prestressed tubular pile with the pile cap is produced, and the bearing capacity of the tubular pile is enhanced through the pile cap.

At present, the chinese utility model patent with publication number CN206916747U discloses a prefabricated pile cap, which comprises a pile cap body. The bottom downwardly extending of pile cap body has annular boss, and the bottom center of annular boss is opened has the recess unanimous with the top shape of precast pile, and the bottom of annular boss outwards extends has the direction boss of loudspeaker form, or the inboard bottom of annular boss recess is the inclined plane that leans out. The pile cap body is also provided with a lifting lug and a hanging hammer frame for hanging the hanging hammer, the hanging hammer frame is arranged on two adjacent sides of the pile cap body, vertical centering lines are drawn on the two side surfaces of the pile cap body, and the projection of the straight line where the hanging hammer is located on the side surface of the pile cap body coincides with the centering lines.

However, in order to facilitate the installation of the pile cap and the tubular pile, the inner diameter of the pile cap is usually larger than the outer diameter of the tubular pile, so that a certain gap is formed between the pile cap and the tubular pile, and the tubular pile and the pile cap can slide. Therefore, when the pile driving hammer is used for sinking the pile, transverse component force is easily generated, so that the striking energy of the diesel pile driving hammer is greatly reduced, meanwhile, the pile cap is easily stressed, deformed and cracked by the transverse component force, the early abrasion of the pile cap is aggravated, and the service life of the pile cap is greatly shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing a pile cap structure for steel-pipe pile has the advantage that reduces to appear sliding between tubular pile and the pile cap.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a pile cap structure for steel-pipe pile, includes the body of pile cap, the body includes barrel and cover, barrel week side inner wall is close to the cover part and is provided with the backup pad, form installation space between backup pad and the cover, installation space is provided with the supporting shoe, the supporting shoe top is fixed in to the supporting shoe bottom, the supporting shoe top is fixed in the cover bottom, the backup pad symmetry slides there is the support column, the support column is provided with the clamp plate that is used for pressing from both sides tight tubular pile periphery side respectively in opposite directions, installation space is provided with and is used for driving the support column syntropy or gliding adjustment mechanism simultaneously dorsad.

Through adopting above-mentioned technical scheme, locate tubular pile one end with the body cover before the use, the clamp plate is located the both sides of tubular pile respectively this moment. Later adjust through adjusting part for the support column is simultaneously towards the direction motion near the tubular pile, press from both sides tight tubular pile until the pinch-off blades, then can carry out pile work, erect the tubular pile during the pile, make the tubular pile keep away from body one side and contact with ground, the effort that the cover received this moment passes through the supporting shoe and transmits for the backup pad, finally acts on the tubular pile, realize the purpose of pile, whole process is simple, convenient, can comparatively effectual reduction appear the possibility of sliding between tubular pile and the pile cap.

The present invention may be further configured in a preferred embodiment as: the supporting block is arranged in the middle of the supporting plate, sliding grooves perpendicular to the central axis of the barrel are symmetrically formed in the supporting plate, the sliding grooves are respectively located on two sides of the supporting block, and the supporting column slides in the sliding grooves.

Through adopting above-mentioned technical scheme, support column sliding connection is in the spout during use, is favorable to the clamp plate to press from both sides tight tubular pile in the both sides of tubular pile.

The present invention may be further configured in a preferred embodiment as: the width of the sliding groove is equal to the width of the supporting column.

Through adopting above-mentioned technical scheme, the cell wall of spout hinders the support column during the use, is favorable to reducing the support column and appears the possibility of rotation.

The present invention may be further configured in a preferred embodiment as: the adjusting mechanism comprises a bidirectional screw rod, the bidirectional screw rod is rotatably connected to the supporting block and is rotatably connected with the barrel, the bidirectional screw rod comprises a forward rotation part and a reverse rotation part, one supporting column is in threaded connection with the forward rotation part, and the other supporting column is in threaded connection with the reverse rotation part.

Through adopting above-mentioned technical scheme, two-way lead screw is rotatory during the use, drives the support column and moves towards being close to the tubular pile or keeping away from the tubular pile direction simultaneously, adjustment mechanism simple structure, convenient to use.

The present invention may be further configured in a preferred embodiment as: one side of the bidirectional screw rod penetrates through the cylinder wall, the end part of the bidirectional screw rod is flush with the peripheral side of the cylinder wall, and a cross-shaped driving part is arranged at one end of the bidirectional screw rod penetrating through the cylinder wall.

Through adopting above-mentioned technical scheme, drive division through outside instrument and produce power and make two-way lead screw rotatory during the use, take outside instrument away after the use, be favorable to reducing the hindrance that the barrel sunk in-process on ground met.

The present invention may be further configured in a preferred embodiment as: the clamping plate is of an arc-shaped plate structure, and the arc-shaped protruding part of the clamping plate is fixedly connected with the supporting column.

Through adopting above-mentioned technical scheme, the clamp plate is the arc structure, is favorable to increasing the size of the area that presss from both sides tight tubular pile, promotes the tight effect of clamp plate.

The present invention may be further configured in a preferred embodiment as: the clamping plate bottom is parallel and level with the barrel bottom, the clamping plate bottom is provided with a guide surface facilitating the entering of the tubular pile.

Through adopting above-mentioned technical scheme, the clamp plate bottom is parallel and level with barrel bottom, is favorable to increasing the area of clamp plate, promotes the tight effect of clamp plate.

The present invention may be further configured in a preferred embodiment as: the bottom of the cylinder body is provided with an annular drag reduction strip, the vertical section of the drag reduction strip is of a triangular structure, and the sharp corner of the triangle faces downwards.

By adopting the technical scheme, the vertical section of the resistance reducing strip is of a triangular structure, so that the resistance of the barrel body when the barrel body sinks into the ground can be reduced through the resistance reducing strip.

To sum up, the utility model discloses a following at least one useful technological effect:

1. tubular pile one end is located with the body cover before using, drives the support column through adjustment mechanism and moves towards the tubular pile direction after that for the tight tubular pile of clamp plate clamp, later can pile, and the effort that the cover received during the pile passes through the supporting shoe and transmits in the backup pad, finally acts on the tubular pile, and whole use is simple, convenient, can comparatively effectual reduction tubular pile and the pile cap between the possibility that appears sliding.

2. The bottom of the cylinder body is provided with the resistance reducing strip, so that the resistance of the body from soil in the process that the tubular pile sinks into the ground can be reduced.

Drawings

FIG. 1 is a schematic internal cross-sectional view of the present embodiment;

FIG. 2 is a schematic structural diagram of the highlight driving portion of the present embodiment;

fig. 3 is a schematic view showing the state of the present embodiment when the clamping plate clamps the tube pile.

Reference numerals: 1. a body; 101. a barrel; 102. a cylinder cover; 2. a support plate; 3. an installation space; 4. a support block; 5. a support pillar; 6. a clamping plate; 7. an adjustment mechanism; 701. a bidirectional screw rod; 8. a chute; 9. a drive section; 10. a guide surface; 11. a drag reducing strip.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a pile cap structure for steel-pipe pile, body 1 including the pile cap. The body 1 includes barrel 101 and the cover 102 of iron and steel material, locates the periphery side of tubular pile one end with body 1 cover before using, later erects the tubular pile and makes the one end of keeping away from body 1 contact with ground, and pile driver hammering pile cap during the use for the tubular pile receives the hammering and sinks into ground.

Referring to fig. 1, a supporting plate 2 is fixed on the inner wall of the circumferential side of the cylinder 101 near the cylinder cover 102, an installation space 3 is formed between the supporting plate 2 and the cylinder cover 102, and after the tubular pile is sleeved on the body 1, the top of the tubular pile contacts with the bottom of the supporting plate 2. The mounting space 3 is provided with a supporting block 4, the bottom of the supporting block 4 is fixedly connected to the middle position of the top of the supporting plate 2, and the top of the supporting block 4 is fixedly connected to the barrel cover 102.

Referring to fig. 1, when the cylinder cover 102 is subjected to a hammering action, the acting force applied to the cylinder cover 102 is transmitted to the support plate 2 through the support block 4, so that the possibility that the cylinder cover 102 is concave under the action of the hammering action is reduced, and the use strength of the body 1 is improved.

Referring to fig. 1, the supporting plate 2 is symmetrically slid with supporting columns 5, and the opposite sides of the supporting columns 5 are respectively provided with a clamping plate 6 for clamping the tubular pile. The mounting space 3 is provided with an adjusting mechanism 7, and when in use, the adjusting mechanism 7 drives the supporting columns 5 to simultaneously move in the same direction or in the opposite direction, so that the clamping plates 6 clamp or loosen the tubular piles.

Referring to fig. 1, the adjusting mechanism 7 includes a bidirectional screw 701, the bidirectional screw 701 is rotatably connected to the supporting block 4, and two ends of the bidirectional screw 701 are respectively rotatably connected to the wall of the cylinder 101. The bidirectional screw 701 comprises a forward rotation part and a backward rotation part, wherein one support column 5 is in threaded connection with the forward rotation part, and the other support column 5 is in threaded connection with the backward rotation part. When the bidirectional screw rod 701 rotates, the two supporting columns 5 are driven to move towards or away from each other at the same time, and clamping or loosening of the clamping plate 6 is achieved.

Referring to fig. 1 and 2, one end of the bidirectional screw 701 penetrates through the wall of the cylinder 101, and the end surface of the bidirectional screw 701 is flush with the outer periphery of the cylinder 101, and the bidirectional screw 701 penetrates through one end of the cylinder 101 and is provided with a cross-shaped driving part 9. When the bidirectional screw rod 701 is used, the tool with the straight or cross-shaped end is inserted into the driving part 9, and then the tool is rotated to drive the bidirectional screw rod 701 to rotate, so that the resistance of the body 1 sinking into the ground is reduced while the bidirectional screw rod 701 is driven to rotate.

Referring to fig. 1, the supporting plate 2 is symmetrically provided with sliding grooves 8, the sliding grooves 8 are perpendicular to the central axis of the cylinder 101, the sliding grooves 8 are respectively located on two sides of the supporting block 4, and the width of the sliding grooves 8 is equal to that of the supporting columns 5. When the supporting column 5 is used, the supporting column 5 slides in the sliding groove 8, and the groove wall of the sliding groove 8 limits the supporting column 5 in the sliding process, so that the possibility of rotation of the supporting column 5 is reduced.

Referring to fig. 1, the clamping plate 6 is located on the side of the supporting column 5 away from the supporting plate 2, and referring to fig. 3 in detail, the clamping plate 6 is in an arc-shaped plate structure and the arc-shaped convex part is fixedly connected with the supporting column 5.

Referring to fig. 1, the bottom of the clamping plate 6 is flush with the bottom of the cylinder 101, which is beneficial to increase the clamping area of the clamping plate 6. The bottom of the clamping plate 6 is provided with a guide surface 10, the guide surface 10 is obliquely arranged, and the distance between the top of the guide surface 10 and the supporting column 5 is greater than the distance between the bottom of the guide surface 10 and the supporting column 5. When in use, the tubular pile is guided by the guide surface 10, so that the obstruction of the tubular pile is reduced, and the tubular pile is conveniently sleeved by the body 1.

Referring to fig. 1, the bottom of the body 1 is fixedly connected with an annular drag reduction strip 11, the vertical section of the drag reduction strip 11 is in a triangular structure, the sharp angle of the triangle is downward, and the body 1 reduces resistance encountered when sinking into the ground through the drag reduction strip 11 when in use.

The use principle is as follows:

referring to fig. 1 and 2, before use, the body 1 is sleeved on one end of the tubular pile, and then a tool is used to drive the driving portion 9, so that the bidirectional screw rod 701 rotates, and at this time, the supporting column 5 drives the clamping plate 6 to move towards the tubular pile at the same time until the clamping plate 6 clamps the tubular pile. Then erect the tubular pile and make the tubular pile keep away from 1 one end of body and contact with ground, can hammer body 1 through the pile driver at last and pile. The whole process is simple and convenient, and the possibility of slippage between the tubular pile and the pile cap is reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a pile cap structure for steel-pipe pile, includes body (1) of pile cap, its characterized in that: body (1) includes barrel (101) and cover (102), barrel (101) week side inner wall is close to cover (102) part and is provided with backup pad (2), form installation space (3) between backup pad (2) and cover (102), installation space (3) are provided with supporting shoe (4), supporting shoe (4) bottom is fixed in backup pad (2) top, supporting shoe (4) top is fixed in cover (102) bottom, backup pad (2) symmetry slip has support column (5), support column (5) incline in opposite directions and do not are provided with clamp plate (6) that are used for pressing from both sides tight tubular pile periphery side, installation space (3) are provided with and are used for driving support column (5) syntropy or gliding adjustment mechanism (7) simultaneously dorsad.

2. The pile cap structure for the steel pipe pile according to claim 1, characterized in that: the supporting block (4) is arranged in the middle of the supporting plate (2), the supporting plate (2) is symmetrically provided with sliding grooves (8) which are perpendicular to the central axis of the barrel body (101), the sliding grooves (8) are respectively located on two sides of the supporting block (4), and the supporting column (5) slides in the sliding grooves (8).

3. The pile cap structure for the steel pipe pile according to claim 2, characterized in that: the width of the sliding groove (8) is equal to that of the supporting column (5).

4. The pile cap structure for the steel pipe pile according to claim 1, characterized in that: the adjusting mechanism (7) comprises a bidirectional screw rod (701), the bidirectional screw rod (701) is rotatably connected to the supporting block (4) and rotatably connected with the cylinder (101), the bidirectional screw rod (701) comprises a forward rotating part and a backward rotating part, one supporting column (5) is in threaded connection with the forward rotating part, and the other supporting column (5) is in threaded connection with the backward rotating part.

5. The pile cap structure for the steel pipe pile according to claim 4, characterized in that: one side of the bidirectional screw rod (701) penetrates through the cylinder wall, the end part of the bidirectional screw rod is flush with the outer peripheral side of the cylinder wall, and a cross-shaped driving part (9) is arranged at one end of the bidirectional screw rod (701) penetrating through the cylinder wall.

6. The pile cap structure for the steel pipe pile according to claim 1, characterized in that: the clamping plate (6) is of an arc-shaped plate structure, and the arc-shaped protruding part of the clamping plate (6) is fixedly connected with the supporting column (5).

7. The pile cap structure for the steel pipe pile according to claim 6, characterized in that: the utility model discloses a tubular pile, including clamping plate (6), barrel (101), guide surface (10) that make things convenient for the tubular pile to get into are provided with clamping plate (6) bottom and barrel (101) bottom parallel and level.

8. The pile cap structure for the steel pipe pile according to claim 6, characterized in that: the bottom of the cylinder body (101) is provided with an annular drag reduction strip (11), the vertical section of the drag reduction strip (11) is of a triangular structure, and the sharp angle of the triangle faces downwards.