CN218667523U

CN218667523U - Low-clearance tension-compression pile sinking device

Info

Publication number: CN218667523U
Application number: CN202222892632.6U
Authority: CN
Inventors: 王卫东; 岳建勇; 张凯
Original assignee: East China Architectural Design and Research Institute Co Ltd
Current assignee: East China Architectural Design and Research Institute Co Ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-21
Anticipated expiration: 2032-11-01

Abstract

The utility model relates to a civil engineering stock static pressure pile field specifically is low headroom draws pressure formula pile sinking device, and technical scheme is: the pile sinking equipment consists of a pile pressing cap, a base and a connecting rope; the pile pressing cap is used for ensuring that pile pressing force is uniformly transmitted to the pile top, is arranged on the pile top and is provided with a pile pressing cap pulley block; the base is used for transmitting the counter force of the pile pressing to a building, is fixed on a bottom plate of the building through an anchor rod and is provided with a base pulley block; the connecting rope is used for connecting the pile cap pulley block and the base pulley block together and applying tension. The utility model discloses with the help of the laborsaving effect of assembly pulley, through the quantity that changes the assembly pulley, can be so that the pulling force of exerting is far less than the pile pressing force of direct pile pressing, can greatly reduce the construction degree of difficulty, improve the efficiency of construction.

Description

Low-clearance tension-compression pile sinking device

Technical Field

The utility model relates to a civil engineering stock static pressure pile field specifically is a low headroom draws pressure formula pile sinking device.

Background

The anchor rod static pressure pile technology is used for fixing a pile pressing machine on a (structure) building by utilizing an anchor rod, utilizing the self gravity of the (structure) building as pile pressing counter force (balance weight if necessary) and pressing precast piles into foundation soil in sections, and is commonly used for construction of deviation correction, underpinning, foundation reinforcement and the like of the existing (structure) building. According to the classification of pile pressing modes, common anchor rod static pile presses can be divided into a top pressing type pile press and an embracing pressing type pile press.

A traditional anchor rod static pressure pile machine belongs to a top pressure type anchor rod static pressure pile machine. And (4) applying pile pressing force to the pile top in a jacking and pressing the pile foundation into the foundation soil from the top of the prefabricated pile. The traditional anchor rod static pile machine mainly comprises a portal frame, a counter-force beam, a jack, an electric hoist and the like, wherein the counter-force beam can move up and down along the portal frame and can be fixed with the portal frame through a device such as a bolt and the like; the electric hoist is arranged at the top end of the portal frame and used for hoisting the movable counter-force beam; the jack is fixed on the counter-force beam and used for pressing the pile. In the construction process of the traditional anchor rod static pressure pile machine, firstly, a counter-force beam is adjusted to a proper position by using an electric hoist, a counter-force Liang Yumen type frame is fixed, and then a precast pile is pressed into foundation soil by using a jack; the pile pressing counter-force is transmitted to a building (structure) through the jack, the counter-force beam and the portal frame anchor rod in sequence, so that the smooth proceeding of the pile pressing process is ensured. The traditional anchor rod static pressure pile machine needs to arrange a portal frame on a foundation slab, has higher requirement on clearance and is not suitable for projects with narrow construction space; due to the limitation of the jack stroke, the position of the counter-force beam needs to be adjusted manually and continuously by using the electric hoist, the construction efficiency is low, and the application of the construction method is greatly limited.

The holding type anchor rod static pressure pile machine holds the precast pile by means of a special clamp, and utilizes the friction force between the side surface of the pile foundation and the clamp to transmit pile pressing force to press the pile foundation into the soil. The pressure holding type anchor rod static pressure pile machine is low in clearance height, applicable to construction in narrow and small spaces, almost free of manual intervention in construction and high in efficiency. However, the machine is complex in structure, the holding clamp needs to be replaced according to the construction pile body, pile extension can be affected by the holding clamp, and the machine is inconvenient to use and affects construction.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a low headroom draws pressure formula pile sinking device. Different from the traditional anchor rod static pressure pile machine and the holding type anchor rod static pressure pile machine which directly applies pressure to press the pile, in the technical scheme, the external applied force in the pile pressing process is pulling force, and the pulling force is converted into pile pressing force by means of a pulley block. The biggest advantage of the change is that the applied pulling force is far less than the pile pressing force of directly pressing the pile by means of the labor-saving effect of the pulley blocks and by changing the number of the pulley blocks, so that the construction difficulty can be greatly reduced, and the construction efficiency is improved.

The technical scheme of the utility model is that: a low clearance tension-compression pile sinking device is characterized in that a pile driving hole is formed in a bottom plate of a building, a precast pile downwards penetrates through the pile driving hole, a pile pressing cap is installed at the pile top of the precast pile, and a pile pressing cap pulley block is arranged on the pile pressing cap; the base is arranged above the pile driving hole and fixed on the bottom plate through the anchor rod, and a hole corresponding to the pile driving hole is formed in the base; the precast pile penetrates through the hole; a base pulley block is arranged on the base; the connecting rope is connected with the pile cap pressing pulley block and the base pulley block; the sections of the connecting ropes are not in cross interference, so that the connecting ropes can be pulled.

Based on the technical characteristics: the base pulley blocks are respectively positioned at two sides of the precast pile, and the connecting rope sequentially and continuously passes through the pulleys of the base pulley block at one side, then sequentially and continuously passes through the pulleys of the pile pressing cap pulley block, and finally sequentially and continuously passes through the pulleys of the base pulley block at the other side.

Based on the technical characteristics: one end of the connecting rope is fixed on the base through a pin bolt, and the pin bolt is inserted into a pulley which is passed by the first connecting rope in the pulley block of the base.

Based on the technical characteristics: the length of the connecting rope is determined by the maximum pile pressing length, the number of pulleys of the pile pressing cap pulley block and the base pulley block, and the length is reserved to meet the requirement of tension implementation.

According to the use method of the low-clearance tension-compression pile sinking device, one end of the connecting rope is bound with the base, and the other end of the connecting rope is used for applying tension. Or the two ends of the connecting rope are pulled by applying tension.

The utility model has the advantages that: the pile sinking equipment is simple in structure and clear in stress, and can effectively solve the construction problem in a low-clearance environment without additionally arranging structures such as a portal frame on a bottom plate; by changing the number of the pulley blocks, the applied pulling force is far smaller than the pile pressing force of direct pile pressing, so that the construction difficulty can be greatly reduced, and the construction efficiency is improved; the pile pressing stroke is not limited by the stroke of a jack and the like, the construction tool can be used for simultaneously constructing different pile foundations and does not influence the pile splicing and other work of the pile foundations, the construction efficiency can be effectively improved, and the operation difficulty and the construction cost are reduced. The process has a promoting effect on industry progress, energy conservation and emission reduction.

Drawings

Fig. 1 is a schematic view of a low-clearance tension-compression pile sinking device in an embodiment of the present invention.

Fig. 2 is a top view of the low-clearance tension-compression pile sinking device in the embodiment of the present invention.

Fig. 3 is a front view of the low-clearance tension-compression pile sinking device in the embodiment of the present invention.

Fig. 4 is an exploded view of the structure of the pile cap according to the embodiment of the present invention.

Fig. 5 is an exploded view of the base structure according to the embodiment of the present invention.

The numbers in the figures are as follows:

pressing a pile cap 1; a connecting rope 2; a base 3; an anchor rod 4; prefabricating the pile 5; a cushion bottom surface 6; a bottom plate 7; and (4) tension force 8.

Pile cap cover plate 11; pile cap pressing pulleys 12; and a pile cap pulley bearing 13.

A base bracket 31; a base pulley 32; a base pulley bearing 33; a pin 34.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 3, the pile sinking equipment comprises a pile pressing cap 1, a connecting rope 2 and a base 3. In the installation process, firstly, an anchor rod 4 is installed on a bottom plate 7, a pile driving hole is cut in the bottom plate 7, after the processes are completed, a base 3 is fixed on the bottom plate 7 through the anchor rod 4, and a hole corresponding to the pile driving hole is formed in the base 3; the base 3 and the anchor rods 4 can be connected by welding, bolts and the like, and the number of the anchor rods 4 and the connection mode of the anchor rods with the base 3 are determined according to the types of the anchor rods and the actual engineering requirements; then, the pile pressing cap 1 is arranged at the top of the precast pile 5, and the precast pile 5 penetrates through the hole on the base and the piling hole; and finally, connecting the pile cap pulley block of the pile cap 1 and the base pulley block of the base 1 together by using a connecting rope 2. The sections of the connecting ropes do not interfere with each other in a crossing way, so that the connecting ropes can be pulled.

Fig. 1 and 2 show a schematic of a rope threading manner, wherein the base pulley blocks are respectively positioned at two sides of the precast pile 5, and the connecting rope 2 sequentially and continuously passes through each pulley of the base pulley block at one side, each pulley of the pile pressing cap pulley block and finally sequentially and continuously passes through each pulley of the base pulley block at the other side.

When the device is used, one end of the connecting rope 2 can be bound with the base 3, the other end of the connecting rope is used for applying tension 8, tension can be applied to two ends of the connecting rope simultaneously, and the connecting rope can be determined according to actual engineering requirements; the equipment for applying the tension of the connecting rope 2 and the speed at which the connecting rope 2 is pulled are determined according to the actual requirements.

As shown in fig. 4, the pile cap 1 is used to ensure that the pile-pressing force is uniformly transmitted to the pile top, and is installed on the pile top, and a pile cap pulley frame is arranged on the pile cap cover plate 11. And a pile pressing cap pulley 12 and a pile pressing cap pulley bearing 13 are fixed on the pile pressing cap pulley frame. The pile cap cover plate 11 is used to ensure that the pile pressing force is uniformly applied to the pile top and to fix the pile cap pulley 12. Pile cap pulley 12 is connected to pile cap cover plate 11 through pile cap pulley bearing 13. The material and shape of the pile cap cover plate 11 can be selected according to actual needs. The number of pile cap pulleys 12 and the position on the pile cap plate 11 can be selected according to the actual need.

As shown in fig. 5, the base 3 is used to transmit the pile driving force to the building or structure. The base comprises a base bracket 31, a base pulley 32, a base pulley bearing 33 and a bolt 34 fixedly connected with the rope. The base support 31 can be formed by welding square steel pipes or other materials meeting the strength requirement; the shape of the base can be adjusted according to actual requirements. The base support 31 is provided with a prepared hole for connecting with the anchor rod 4 and a base pulley frame for fixing the pulley. The base pulley 32 is connected to the base pulley housing by a base pulley bearing 33. The pin 34 for fixing the connecting rope binds the connecting rope 2 with the base 3; the pin 34 can be inserted into the first pulley of the set of base pulleys through which the connecting rope passes. For systems where tension is applied to both ends of the connecting rope at the same time, the pin 34 need not be provided.

In the technical scheme, the shapes, sizes and materials of the pile pressing cap and the base can be selected according to actual requirements. The number of the anchor rods for fixing the base is determined according to actual requirements. The equipment for applying the tension on the connecting rope can be selected according to actual conditions; the speed of pulling the connecting rope determines the pile pressing speed and can be determined according to the field requirement. The number of the pulleys on the pile pressing cap and the base can be adjusted according to the maximum pile pressing force designed by the pile pressing machine. The connecting rope can be made of steel wire ropes, and the tensile strength of the connecting rope can meet the pile pressing force requirement. The length of the connecting rope is adjusted according to the maximum pile pressing length, the pile pressing cap, the number of pulleys on the base and the like, enough length is reserved, and the smooth implementation of the tension is guaranteed.

In fig. 1 and 3, a bottom surface 6 of the mat is shown below the bottom plate 7, which is only one illustration.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a low headroom draws pressure formula pile sinking device sets up the pile driving hole on bottom plate (7) of building, and precast pile (5) passes downwards the pile driving hole, its characterized in that: the pile pressing cap (1) is arranged at the pile top of the precast pile (5), and a pile pressing cap pulley block is arranged on the pile pressing cap (1); the base (3) is arranged above the pile driving hole and is fixed on the bottom plate (7) through an anchor rod (4), and a hole corresponding to the pile driving hole is formed in the base (3); the precast pile (5) penetrates through the hole; a base pulley block is arranged on the base (3); the connecting rope (2) is connected with the pile pressing cap pulley block and the base pulley block; the sections of the connecting ropes do not interfere with each other in a crossing manner, so that the connecting ropes (2) can be pulled.

2. The low-clearance tension-compression pile sinking device as claimed in claim 1, wherein: the base pulley block is respectively positioned at two sides of the precast pile (5), and the connecting rope (2) sequentially and continuously passes through the pulleys of the base pulley block at one side, then sequentially and continuously passes through the pulleys of the pile pressing cap pulley block, and finally sequentially and continuously passes through the pulleys of the base pulley block at the other side.

3. The low-clearance tension-compression pile sinking device as claimed in claim 2, wherein: one end of the connecting rope (2) is fixed on the base (3) through a pin bolt (34), and the pin bolt (34) is inserted into a first pulley of the base pulley block through which the connecting rope (2) passes.

4. A low headroom tension compression type pile driving device as claimed in claim 1, 2 or 3, wherein: the length of the connecting rope (2) is determined according to the maximum pile pressing length, the number of the pulleys of the pile pressing cap pulley block and the base pulley block, and the length is reserved to meet the requirement of tension implementation.