CN218090820U

CN218090820U - Deep water pile foundation double-protection barrel structure in complex geological environment

Info

Publication number: CN218090820U
Application number: CN202222002094.9U
Authority: CN
Inventors: 于建华; 陈甫君; 杨振宇; 李松洋; 杨雄; 胡婕
Original assignee: Sichuan Communications Construction Group Co Ltd
Current assignee: Sichuan Communications Construction Group Co Ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-20
Anticipated expiration: 2032-07-28

Abstract

The utility model provides a two pile casings of complicated geological environment deep water pile foundation structure that protects relates to pile body construction technical field under water, has solved the unnecessary inner tube structure that cuts out and can not reuse, causes the problem of wasting of resources. It includes that inner tube and movable sleeve establish the urceolus in the inner tube outside, the inner tube includes that the several gomphosis connects gradually the inner tube sleeve pipe, and the gomphosis is seted up flutedly in the sheathed tube outer wall of inner tube in the inboard, be provided with pressure spring in the recess, pressure spring is connected with the kelly, the activity of kelly runs through the sheathed tube lateral wall of inner tube in the gomphosis in the outside, the kelly is kept away from pressure spring's one end and is not outstanding in the outer wall of inner tube. The inner barrel sleeves are sequentially detachably connected into an inner barrel whole, after the pile foundation is installed, the redundant inner barrel sleeves are directly detached, the detached inner barrel sleeves can be reused, and resource waste caused by cutting is reduced.

Description

Deep water pile foundation double-protection barrel structure in complex geological environment

Technical Field

The utility model relates to a pile body construction technical field under water particularly, relates to a two pile casing structures of deep water pile foundation of complicated geological environment.

Background

The pile casing is a cylindrical hollow barrel rolled by a steel plate and arranged for positioning and guiding drilling holes, preventing orifice collapse, maintaining underground water level and the like in the pile foundation drilling process, and the purpose of embedding the pile casing is achieved by inserting and driving the steel pile casing into a river bed in a vibration pile sinking mode.

The underwater pile foundation steel protects a section of thick bamboo and buries the mode underground is that installation leading truck on the aquatic platform, transfers the steel after the leading truck is fixed and protects a section of thick bamboo, relies on the vibratory hammer directly to protect a section of thick bamboo to squeeze into the riverbed after the steel protects a section of thick bamboo end opening contact to the riverbed in, utilizes the vibratory hammer to insert the in-process of beating a section of thick bamboo and will adjust the leading truck at any time, and when the leading truck was rectified a section of thick bamboo, the central point that the steel protected a section of thick bamboo put and the straightness that hangs down can reach standard requirement. In order to reduce the influence of water flow on embedding of pile casings, in the prior art, a double-pile casing structure is adopted for pile body construction, after the double pile casings are embedded in place in sequence, underwater concrete is poured in a cavity below the surface of a riverbed between the two pile casings, then an outer pile casing is pulled out, the part of the inner pile casing, which exceeds a punching platform, is cut on the water surface, but the cut redundant inner cylinder structure cannot be reused, and resource waste is caused.

SUMMERY OF THE UTILITY MODEL

To the problem, an object of the utility model is to provide a two section of thick bamboo structures that protect of complicated geological environment deep water pile foundation utilizes a plurality of inner tube sleeves to dismantle in proper order and connects into an inner tube wholly, and after the pile foundation installation finishes, directly dismantle the lower redundant inner tube sleeve pipe, the inner tube sleeve pipe after the dismantlement can also reuse, has reduced because the produced wasting of resources of cutting.

The embodiment of the utility model discloses a realize through following technical scheme:

the utility model provides a two pile casings of complicated geological environment deep water pile foundation protect a structure, establishes the urceolus in the inner tube outside including inner tube and activity cover, the inner tube includes the inner tube sleeve pipe that the several gomphosis connects gradually, and the gomphosis is seted up flutedly in the sheathed tube outer wall of inner tube in the inboard, be provided with pressure spring in the recess, pressure spring is connected with the kelly, the kelly activity runs through the sheathed tube lateral wall of inner tube in the gomphosis in the outside, pressure spring's one end is not outstanding in the outer wall of inner tube is kept away from to the kelly.

Preferably, one end of the clamping rod, which is far away from the pressure spring, is of an arc-shaped structure.

Preferably, the inner cylinder sleeve is sleeved with a second sealing ring which is in contact with the inner wall of the adjacent inner cylinder sleeve, and the second sealing ring is positioned below the groove.

Preferably, the bottom parts of the inner cylinder and the outer cylinder are both provided with a binding piece.

Preferably, the outer cylinder comprises a plurality of outer cylinder sleeves which are sequentially connected in an embedded manner, a screw is arranged on the side wall of the outer cylinder, the adjacent outer cylinder sleeves are connected through the screw, one end of the screw does not protrude out of the outer wall of the outer cylinder, and the other end of the screw does not penetrate through the inner wall of the outer cylinder.

Preferably, the screw is sleeved with a sealing washer, and the outer cylinder sleeve is sleeved with a first sealing ring which is in contact with the inner wall of the adjacent outer cylinder sleeve.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

a plurality of inner tube sleeve pipes are fixed into an inner tube body through the clamping rod after being sequentially embedded, after the pile foundation is installed, the redundant inner tube sleeve pipes can be directly disassembled, the disassembled inner tube sleeve pipes can be reused, the resource waste is reduced, the clamping rod does not protrude out of the outer wall and the inner wall of the inner tube, and the normal work of a guide frame for providing a guide effect for the inner tube and a punching hammer is not influenced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a usage status provided by an embodiment of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1;

fig. 3 is an enlarged schematic view of B in fig. 1.

Icon: 1-outer cylinder; 101-outer barrel sleeve; 102-a sealing gasket; 103-a first sealing ring; 104-screw rod; 2-inner cylinder; 201-inner barrel casing; 202-a groove; 203-a pressure spring; 204-a second seal ring; 205-a clamping bar; and 3-edge wrapping.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The present invention will be described in detail with reference to fig. 1 to 3.

Examples

The utility model provides a two pile casings of complicated geological environment deep water pile foundation structure, establishes the urceolus 1 in the inner tube 2 outside including inner tube 2 and activity cover, inner tube 2 includes that the several gomphosis connects gradually inner tube sleeve 201, and the outer wall of the inner tube sleeve 201 of gomphosis in the inboard is seted up flutedly 202, be provided with pressure spring 203 in the recess 202, pressure spring 203 is connected with kelly 205, the activity of kelly 205 runs through the lateral wall of the inner tube sleeve 201 of gomphosis in the outside, the one end that pressure spring 203 was kept away from to kelly 205 is not outstanding in the outer wall of inner tube 2.

The end of the clamping rod 205 far away from the pressure spring 203 is of an arc structure. The arc-shaped end part can reduce the abrasion between the clamping rod 205 and the inner wall of the inner cylinder sleeve 201, the service life is prolonged, and the arc-shaped end part can facilitate the clamping rod 205 to extend into a connected hole.

The inner cylinder sleeve 201 is sleeved with a second sealing ring 204 which is in contact with the inner wall of the adjacent inner cylinder sleeve 201, and the second sealing ring 204 is positioned below the groove 202. The second sealing ring 204 is arranged to seal the engaging gap between adjacent inner barrel sleeves 201, so as to prevent mud or water from entering the inner side of the inner barrel 2 from the engaging gap, and also prevent mud or water from penetrating the inner side of the inner barrel 2 from the hole where the clamping rod 205 is located.

And the bottom parts of the inner barrel 2 and the outer barrel 1 are both provided with a binding piece 3. The bottom of the inner cylinder 2 and the bottom of the outer cylinder 1 are increased in thickness by the edge wrapping piece 3, so that the bottom of the inner cylinder 2 and the bottom of the outer cylinder 1 cannot be easily curled and deformed when the inner cylinder 2 and the outer cylinder 1 are installed.

The outer cylinder 1 comprises a plurality of outer cylinder sleeves 101 which are sequentially connected in an embedded mode, a screw 104 is arranged on the side wall of the outer cylinder 1, the adjacent outer cylinder sleeves 101 are connected through the screw 104, one end of the screw 104 does not protrude out of the outer wall of the outer cylinder 1, and the other end of the screw does not penetrate through the inner wall of the outer cylinder 1. The outer cylinder 1 assembled by arranging the plurality of outer cylinder sleeves 101 can be assembled into outer cylinders 1 with different lengths according to water depth so as to adapt to different water depth environments. The adjacent outer cylinder sleeve 101 is fixed by the arranged screw 104, and one end of the screw 104 protrudes out of the outer wall of the outer cylinder 1, so that the guiding function of the guide frame is not influenced; the other end does not penetrate the inner wall of the outer tube 1, so that the generation of a gap is reduced. The outer barrel 1 and the inner barrel 2 are fixed in different modes, the purpose is that the inner barrel 2 needs to be rapidly disassembled so as to be put into new pile foundation construction at once, the outer barrel 1 is integrally extracted after being used and then put into use, the length of the outer barrel 1 basically does not need to be adjusted, and therefore the outer barrel 1 is fixed by a more complex and stable screw 104 so as to ensure that the structure of the outer barrel 1 is stable in the inserting and beating process.

The screw 104 is sleeved with a sealing washer 102, and the outer cylinder sleeve 101 is sleeved with a first sealing washer 103 contacting the inner wall of the adjacent outer cylinder sleeve 101. A first seal ring 103 is provided to prevent water from penetrating into the inner side of the outer cylinder 1 from the screw hole gap.

The length of the outer cylinder sleeve 101 at the lowermost end is greater than the lengths of the other outer cylinder sleeves 101, and the length of the inner cylinder sleeve 201 is greater than the lengths of the other inner cylinder sleeves 201, so that the assembly frequency of the outer cylinder sleeve 101 and the inner cylinder sleeve 201 is reduced, and the assembly working strength is reduced.

The construction steps are as follows:

1. after the guide frame is fixed, the assembled outer cylinder 1 is inserted and beaten by a vibration hammer, the outer cylinder 1 is inserted into a riverbed in a vertical state by the guide frame, and after the insertion and beating are finished, the top end of the outer cylinder 1 extends out of the water surface.

2. And a hammer with a diameter slightly larger than that of the inner cylinder 2 is used for guiding the hole to a position 8m below the river bed at the central position in the outer cylinder 1, the hole depth, the hole diameter, the inclination rate and the like are required to meet the requirements during hole guiding, and then the assembled inner cylinder 2 is placed in the inner part by using the guide frame and the vibration hammer.

3. C30 underwater concrete is poured in a cavity between the outer cylinder 1 and the inner cylinder 2 and below the surface of the riverbed, so that the stability and the verticality of the inner cylinder 2 under the action of strong water flow are ensured.

4. Utilize the vibratory hammer to extract outside urceolus 1 after pouring, later dismantle the many inner tube sleeve pipes 201 that surpass the platform that punches a hole down, the concrete operation is: the clamping rod 205 is extruded towards the direction of the groove 202 by a tool, the clamping rod 205 is separated from one of the inner cylinder sleeves 201, so that the inner cylinder sleeves 201 are released from being fixed, the redundant inner cylinder sleeves 201 are pulled out by the lifting device, and finally the inner cylinder sleeve 201 at the uppermost end of the inner cylinder 2 is cut by a cutting tool, so that the length of the inner cylinder 2 meets the standard requirement.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a two pile casings of complicated geological environment deep water pile foundation structure, establishes urceolus (1) in the inner tube (2) outside including inner tube (2) and activity cover, its characterized in that, inner tube (2) include inner tube sleeve pipe (201) that the several gomphosis connects in proper order, and the outer wall of inner tube sleeve pipe (201) in the gomphosis inboard is seted up fluted (202), be provided with pressure spring (203) in recess (202), pressure spring (203) are connected with kelly (205), the activity of kelly (205) runs through the lateral wall of inner tube sleeve pipe (201) in the gomphosis outside, the one end that pressure spring (203) were kept away from in kelly (205) does not stand out in the outer wall of inner tube (2).

2. The deep water pile foundation double casing structure in the complex geological environment as claimed in claim 1, wherein the end of the clamping rod (205) far away from the pressure spring (203) is arc-shaped.

3. The dual casing structure for the deep water pile foundation in the complex geological environment as claimed in claim 1, wherein the inner cylinder casing (201) is sleeved with a second sealing ring (204) contacting with the inner wall of the adjacent inner cylinder casing (201), and the second sealing ring (204) is located below the groove (202).

4. The deep water pile foundation double casing structure in the complex geological environment according to claim 1, characterized in that the bottom of the inner cylinder (2) and the bottom of the outer cylinder (1) are provided with a binding piece (3).

5. The deep water pile foundation double pile casing structure in the complex geological environment according to claim 1, characterized in that the outer cylinder (1) comprises a plurality of outer cylinder sleeves (101) which are sequentially connected in a jogged manner, a screw (104) is arranged on the side wall of the outer cylinder (1), the adjacent outer cylinder sleeves (101) are connected through the screw (104), one end of the screw (104) does not protrude out of the outer wall of the outer cylinder (1), and the other end of the screw does not penetrate through the inner wall of the outer cylinder (1).

6. The dual casing structure for the deep water pile foundation in the complex geological environment as claimed in claim 5, wherein the screw rod (104) is sleeved with a sealing washer (102), and the outer cylinder sleeve (101) is sleeved with a first sealing washer (103) contacting with the inner wall of the adjacent outer cylinder sleeve (101).