CN211898382U

CN211898382U - Pile pulling equipment

Info

Publication number: CN211898382U
Application number: CN202020242700.2U
Authority: CN
Inventors: 江育龙; 胡鹏; 陆庆; 刘玉明
Original assignee: Tengda Construction Group Co Ltd
Current assignee: Tengda Construction Group Co Ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-11-10
Anticipated expiration: 2030-03-03

Abstract

The utility model provides a pile pulling equipment, it belongs to building construction equipment field, this pile pulling equipment is used for pulling out the pile body that sets up in soft ground, it is including pulling out pile sleeve and slider, it is provided with two spout groups to pull out the pile sleeve, spout group is the spout of predetermineeing the contained angle including two all with vertical direction, and two spouts set up respectively in pulling out the both sides that the pile sleeve is relative, the slider is provided with two, every slider all slides and wears to locate in two spouts of a spout group, when pulling out the pile sleeve along vertical direction lapse, the slider can slide to the lower terminal surface of pile body bottom by the up end at pile body top, in order to support the pile body. The sliding piece slides along the sliding groove by means of the gravity of the sliding piece until the sliding piece is abutted to the lower end face of the pile body, so that the energy consumption of pile pulling equipment and the cost of pile pulling construction are reduced. Because the sliding part is positioned on the lower end face of the bottom of the pile body, pile breakage of the pile body in the pile pulling process is avoided, and the reliability and the stability of the pile pulling equipment are improved.

Description

Pile pulling equipment

Technical Field

The utility model relates to a construction equipment field especially relates to a pile pulling equipment for soft ground.

Background

At present, in engineering construction such as old city reconstruction, factory relocation, road construction and the like, a large number of residential houses, old plants and roads need to be dismantled, and pile bodies dug down at original positions need to be pulled out in time so as to be reconstructed or expanded.

In pile pulling construction of a soft foundation, waste pile bodies are pulled out through pile-soil separation. One method is to utilize high pressure rotary spraying chemical slurry to scour the soil around the pile, reduce the friction between the pile body and the soil around the pile, jack the pile body with a jack and pull out the pile body with a crane. The construction method needs high-pressure rotary spraying equipment and a large amount of chemical slurry, has high construction cost, is difficult to effectively judge whether the pile body is separated from the soil body around the pile, is easy to cause pile breakage of the pile body, increases the construction difficulty and improves the construction cost. The other method is that a special obstacle clearing machine and a steel sleeve are adopted, the steel sleeve is driven by a hydraulic vibration hammer to sink to a depth exceeding the length of the original pile body and is accurately positioned, the soil body around the pile is cut or cut by rotating the steel sleeve, the pile body and the soil body around the pile are effectively separated, and then the pile body is pulled out. The method has expensive construction equipment, large engineering quantity and high pile pulling cost.

Therefore, a pile pulling device suitable for soft foundation is needed to solve the problems of high pile pulling cost and easy pile breakage of the pile body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pile pulling equipment to reduce the cost of pile pulling construction, avoid the pile body to pull out the in-process and appear disconnected stake.

To achieve the purpose, the technical proposal adopted by the utility model is that:

a pile pulling apparatus for pulling out a pile body disposed in a soft foundation, comprising:

the pile pulling sleeve is provided with two sliding groove groups, each sliding groove group comprises two sliding grooves which form preset included angles with the vertical direction, and the two sliding grooves are respectively arranged on two opposite sides of the pile pulling sleeve;

the sliding pieces are arranged in two, each sliding piece is arranged in two sliding grooves of one sliding groove group in a sliding mode, and the sliding pieces are configured to be capable of moving from the upper end face of the top of the pile body to the lower end face of the bottom of the pile body when the pile pulling sleeve moves downwards along the vertical direction so as to support the pile body.

Further, the distance between the two sliding grooves on the same side of the pile pulling sleeve is gradually reduced from top to bottom, and the distance between the lowest sliding grooves is smaller than the width of the pile body.

Further, pile pulling equipment still includes the connecting plate, the connecting plate connect in pile pulling sleeve.

Further, the pile pulling equipment further comprises a reinforcing piece, and the reinforcing piece is connected with the top of the pile pulling sleeve and the connecting plate respectively.

Further, the reinforcing piece is provided with two, two the reinforcing piece set up in the relative both sides of pile pulling sleeve.

Further, the connecting plate is a Larsen steel sheet pile.

Furthermore, both ends of the sliding part are connected with limiting parts.

Further, the locating part is a fixing ring, and the fixing ring is connected with the sliding part in a welding mode.

Further, the bottom end of the pile pulling sleeve is provided with a guide cone along the circumferential direction of the pile pulling sleeve.

Further, the preset included angle is 15-25 degrees.

The utility model has the advantages that:

the utility model provides a pair of pile pulling equipment for pull out the pile body that sets up in soft ground, it is including pulling out the pile sleeve, slider and actuating mechanism, it is provided with two spout groups to pull out the pile sleeve, spout group is the spout of predetermineeing the contained angle including two all with vertical direction, and two spouts set up respectively in the both sides that the pile sleeve is relative, the slider is provided with two, every slider all slides and wears to locate in two spouts of a spout group, when pulling out the pile sleeve along vertical direction downstream, the slider can slide to the lower terminal surface of pile body bottom by the up end at pile body top, in order to support the pile body. The sliding piece slides along the sliding groove by means of the gravity of the sliding piece until the sliding piece is abutted to the lower end face of the pile body, the driving mechanism is not needed to drive the sliding piece, and energy consumption of pile pulling equipment and pile pulling construction cost are reduced. Because the sliding part is positioned on the lower end face of the bottom of the pile body, pile breakage of the pile body in the pile pulling process is avoided, and the reliability and the stability of the pile pulling equipment are improved.

Drawings

Fig. 1 is a front view of the pile pulling apparatus provided by the present invention;

fig. 2 is a top view of the pile pulling apparatus provided by the present invention;

fig. 3 is a schematic view of a working process of the pile pulling equipment provided by the present invention;

fig. 4 is a schematic view of a working process of the pile pulling equipment provided by the present invention;

fig. 5 is a schematic view showing a third working process of the pile pulling apparatus provided by the present invention.

In the figure:

10. a pile body; 20. softening the foundation;

1. pile pulling sleeves; 11. a chute; 12. a first opening; 13. a second opening; 2. a slider; 3. a connecting plate; 4. a fixing ring; 5. a guide cone; 6. a reinforcement.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 5, the present embodiment proposes a pile pulling apparatus for pulling out a pile body 10 disposed in a soft foundation 20. The pile pulling apparatus comprises a pile pulling sleeve 1 and a slide 2. Be provided with two spout groups on the pile pulling sleeve 1, spout group is the spout 11 of predetermineeing the contained angle including two all with vertical direction, and two spout 11 set up respectively in the both sides that pile pulling sleeve 1 is relative. The sliding pieces 2 are arranged in two, each sliding piece 2 is arranged in two sliding grooves 11 of one sliding groove group in a sliding mode, when the pile pulling sleeve 1 moves downwards along the vertical direction, the sliding pieces 2 can move from the upper end face of the top of the pile body 10 to the lower end face of the bottom of the pile body 10 to support the pile body 10, and therefore the pile body 10 and the pile pulling sleeve 1 can move upwards jointly along the vertical direction.

In this embodiment, when pile pulling sleeve 1 is located on pile body 10 and when following vertical direction downstream, slider 2 can rely on the gravity of self to slide along spout 11 until the lower terminal surface butt with pile body 10, need not actuating mechanism drive slider 2, has reduced the energy consumption of pile pulling equipment and the cost of pile pulling construction. Because the sliding part 2 is positioned on the lower end face of the pile body 10, pile breakage of the pile body 10 in the pile pulling process is avoided, and the reliability and the stability of the pile pulling equipment are improved.

In this embodiment, pile pulling sleeve 1 is the square sleeve that four steel sheets were enclosed to establish through the welding, and pile pulling sleeve 1 includes consecutive first curb plate, second curb plate, third curb plate and fourth curb plate, and wherein first curb plate sets up with the third curb plate relatively, and the second curb plate sets up with the fourth curb plate relatively. Wherein, the two sliding chutes 11 of each sliding chute group are respectively arranged on the first side plate and the third side plate. Since the two sliding grooves 11 on the first side plate and the two sliding grooves 11 on the third side plate are arranged at the same angle and at the same position, the two sliding grooves 11 on the first side plate are taken as an example for the following description.

As shown in fig. 1, the distance between the two sliding grooves 11 on the first side plate gradually decreases from top to bottom, and the lowermost distance is smaller than the width of the pile body 10. Specifically, a first opening 12 and a second opening 13 are formed between the two sliding grooves 11 on the first side plate, and the first opening 12 is located above the second opening 13. In the horizontal direction, the length of the pile body 10 is greater than the distance between the second openings 13 and less than the distance between the first openings 12, so that the sliding piece 2 can abut against the lower end face of the bottom of the pile body 10, and the pile body 10 and the pile pulling sleeve 1 are supported to move upwards in the vertical direction together. The sliding part 2 is a pin shaft, and both ends of the sliding part 2 are connected with limiting parts to prevent the sliding part 2 from being separated from the sliding groove 11. Specifically, the limiting member is a fixing ring 4, and the fixing ring 4 is fixed to the slider 2 by welding. In other embodiments, the limiting member may also be a cotter pin or a dowel. The limiting member and the sliding member 2 may be fixed by a threaded connection or an interference connection. The structure and the fixing form of the limiting member capable of being fixed to the sliding member 2 are conventional technical means in the art, and are not described in detail in this embodiment.

It should be noted that the preset included angle between the extending direction of the sliding groove 11 and the vertical direction is preferably 15 to 25 ° to improve the sliding efficiency of the sliding member 2 along the sliding groove 11. When the preset included angle is too large, the sliding efficiency of the sliding part 2 along the sliding groove 11 is reduced, and the pile pulling construction efficiency is further reduced. When the above-mentioned contained angle of predetermineeing is too little, increased the design size of spout 11, and then increased pile pulling sleeve 1's size and weight, be unfavorable for pile pulling equipment lightweight and the requirement of low energy consumption.

As shown in fig. 1 and 2, the pile pulling equipment further comprises a connecting plate 3, and the connecting plate 3 is connected with the top end of the pile pulling sleeve 1, so as to reduce the size and weight of the pile pulling sleeve 1 and reduce the energy consumption of the pile pulling equipment. It should be noted that, in pile pulling construction, still need actuating mechanism drive pile pulling equipment to accomplish the construction of pulling out of pile body 10, this actuating mechanism includes vibration hammer and tractor, wherein the vibration hammer is beaten connecting plate 3 in succession, so that the pile pulling sleeve 1 of locating pile body 10 in the cover can follow the horizontal plane of soft ground 20 and move down along vertical direction, the tractor links to each other with connecting plate 3, so as to drive pile pulling sleeve 1 and pile body 10 and move up to the horizontal plane of soft ground 20 along vertical direction jointly more than, accomplish pile pulling construction operation.

In this embodiment, the connecting plate 3 is preferably a larsen steel sheet pile, which is cheap and easy to obtain and has sufficient strength, and can reduce the production cost of the pile pulling equipment on the premise of ensuring the strength of the pile pulling equipment. In order to avoid the interference between the connecting plate 3 and the pile body 10, the connecting plate 3 is arranged on the upper end face of the top of the second side plate on the pile pulling sleeve 1, and the connecting plate 3 is fixedly connected with the pile pulling sleeve 1 through welding.

In order to increase the rate at which the pile pulling sleeve 1 moves downwards in the vertical direction, the bottom end of the pile pulling sleeve 1 is provided with guide cones 5 along its circumference. The guide cone 5 only needs to be capable of increasing the moving speed of the pile pulling sleeve 1 in the vertical direction, and the specific size and structure of the guide cone 5 are not specifically limited in the embodiment.

It is noted that the pile pulling apparatus further comprises a reinforcement 6, which reinforcement 6 is connected to the top of the pile pulling sleeve 1 and the connecting plate 3, respectively, to increase the strength of the pile pulling apparatus.

In this embodiment, reinforcement 6 is right triangle reinforcing steel plate, and two right-angle sides of reinforcing steel plate pass through welding form fixed connection with the top of pile pulling sleeve 1 and the larsen steel sheet pile respectively. The reinforcing pieces 6 are arranged in two, and the two reinforcing pieces 6 are arranged on the upper end face of the top of the first side plate and the upper end face of the top of the third side plate on the pile pulling sleeve 1 respectively.

In order to facilitate understanding of the scheme in this embodiment, pile pulling construction of the pile pulling apparatus is now described:

as shown in fig. 3-5, the pile pulling sleeve 1 is first sleeved on the top of the pile body 10, and the two sliding members 2 are abutted against the upper end surface of the top of the pile body 10. The connecting plate 3 is then continuously hammered by a vibratory hammer to sink the pile pulling sleeve 1 into the soft ground 20, and the two sliding members 2 slide upward along the corresponding sliding grooves 11 under the force of the pile body 10. In the horizontal direction, when the distance between the two sliding parts 2 is greater than the length of the pile body 10, the two sliding parts 2 can continue to slide in the extending direction of the sliding groove 11 under the action of self gravity and move downwards along with the pile pulling sleeve 1. When the pile pulling sleeve 1 moves to the bottom end position of the pile body 10, under the driving of the vibration hammer and the tractor, after the two sliding parts 2 abut against the lower end face of the bottom of the pile body 10, the vibration hammer is closed, the tractor drives the pile pulling sleeve 1 to move upwards along the vertical direction, so that the pile body 10 is pulled out from the soft foundation 20, and finally the pulling construction of the pile body 10 is completed.

The pile pulling equipment provided by the embodiment is suitable for pulling out the waste pile body 10 arranged in the soft foundation 20. Its slider 2 relies on self gravity to slide along spout 11 until with the bottom butt of pile body 10, need not actuating mechanism drive slider 2, has reduced pile pulling equipment's energy consumption and the cost of pile pulling construction. Because the sliding part 2 is positioned on the lower end face of the bottom of the pile body 10, pile breakage of the pile body 10 in the pile pulling process is avoided, and the reliability and the stability of the pile pulling equipment are improved.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Pile pulling apparatus for pulling out a pile body (10) arranged in a soft foundation (20), comprising:

the pile pulling sleeve (1) is provided with two sliding groove groups, each sliding groove group comprises two sliding grooves (11) which form preset included angles with the vertical direction, and the two sliding grooves (11) are respectively arranged on two opposite sides of the pile pulling sleeve (1);

the sliding parts (2) are arranged in two, each sliding part (2) is arranged in two sliding grooves (11) of one sliding groove group in a sliding mode, and the sliding parts (2) are configured to be capable of moving from the upper end face of the top of the pile body (10) to the lower end face of the bottom of the pile body (10) when the pile pulling sleeve (1) moves downwards along the vertical direction so as to support the pile body (10).

2. Pile pulling apparatus according to claim 1, characterised in that the spacing between the two runners (11) on the same side of the pile pulling sleeve (1) decreases gradually from top to bottom, and that the lowermost spacing is smaller than the width of the pile body (10).

3. Pile pulling apparatus according to claim 1, characterised in that it further comprises a connecting plate (3), which connecting plate (3) is connected to the pile pulling sleeve (1).

4. Pile pulling apparatus according to claim 3, characterised in that it further comprises a reinforcement (6), which reinforcement (6) is connected to the top of the pile pulling sleeve (1) and the connecting plate (3), respectively.

5. Pile pulling apparatus according to claim 4, characterised in that said reinforcement (6) is provided in two, two said reinforcements (6) being provided on opposite sides of said pile pulling sleeve (1).

6. A pile pulling apparatus according to claim 3, characterised in that the connection plate (3) is a larsen steel sheet pile.

7. Pile pulling apparatus according to claim 1, characterised in that a stop is connected to both ends of the sliding element (2).

8. Pile pulling apparatus according to claim 7, wherein the stop element is a fixed ring (4), the fixed ring (4) being in welded connection with the slider (2).

9. Pile pulling apparatus according to claim 1, characterised in that the bottom end of the pile pulling sleeve (1) is provided with a guide cone (5) along its circumference.

10. Pile pulling apparatus as claimed in claim 1, wherein the predetermined included angle is between 15 ° and 25 °.