Stable group-anchor static pressure pile structure and a group-anchor static pressure pile method

Abstract

The present invention provides a stable group-anchor static pressure pile structure, comprising a plurality of pressure pile holes arranged on the ground and a pressure pile device for pressure piles. A longitudinal beam is arranged around the pressure pile holes, a transverse beam is arranged above the longitudinal beam, the transverse beam and the longitudinal beam are staggered to form a grid, the pressure pile holes are located in the grid, the pressure pile device is arranged in the transverse beam, the transverse beam is provided with a counterweight vehicle that can move along the transverse beam, the counterweight vehicle and / or the transverse beam have a locking structure, and the locking structure can lock the counterweight vehicle at a specified position on the transverse beam. A group-anchor static pressure pile method comprises: a beam erecting step, erecting longitudinal beams and transverse beams around the pressure pile holes, so that the longitudinal beams and the transverse beams are staggered to form a grid, and the pressure pile holes are located in the grid; a counterweighting step, installing a counterweight vehicle that can move along the transverse beam in the transverse beam, and adjusting the weight of the counterweight vehicle according to the counterweighting needs; a pressure pile step, moving the counterweight vehicle to the specified position and locking it, installing the pressure pile device and starting pressure piles.

Description

Technical Field

[0001] The invention relates to the field of building reinforcement, in particular to a stable group-anchor static pressure pile structure and a group-anchor static pressure pile method. Background Art

[0002] At present, the existing static pressure pile structure is shown in Chinese patent CN2011202813501, which mainly discloses a group anchor static pressure pile structure, including a pile hole, a crossbeam, and a longitudinal beam on the ground. Expansion bolts are planted on the ground, and the heads of the expansion bolts are fixed with connecting lugs through nuts. The connecting lugs press the crossbeam and the longitudinal beam on the ground; a pile driving device is provided on the crossbeam, and a jack on the pile driving device abuts against the pile head in the pile hole.

[0003] The drawback of the prior art is that when the jack applies a positive force to the pile head to compress the pile, the pile head transmits a reverse force to the jack. This reverse force needs to be offset by a supporting force, otherwise the crossbeam and longitudinal beam will be lifted off the ground. In the aforementioned group-anchor static pressure pile structure, this supporting force is provided by expansion bolts, and the transmission path of the supporting force is: ground, expansion bolts, connecting lugs, longitudinal beams, crossbeams, and jacks. Therefore, to provide this supporting force, high standards are required for the tightness of the connection between the ground and the expansion bolts, the rigidity of the connecting lugs, and the tightness of the connection between the connecting lugs and the crossbeams. However, the construction site is located within a building, which is restricted by environmental factors such as floor height and ground material, making it difficult to meet these requirements. As a result, during construction, expansion bolts are easily detached from the ground, connecting lugs break, and crossbeams and connecting lugs become detached. As a result, the group-anchor static pressure pile structure is unable to provide support for the jacks, and the jacks are unable to compress the pile heads. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention aims to provide a stable group-anchor static pile structure and a group-anchor static pile method, which can reliably provide support force to the pile driving device during pile driving.

[0005] A stable group-anchor static pressure pile structure includes a plurality of pressure pile holes set on the ground and a pressure pile device for pressure piles. Longitudinal beams are set around the pressure pile holes, and cross beams are set above the longitudinal beams. The cross beams and the longitudinal beams are staggered to form a grid. The pressure pile holes are located in the grid. The pile device is set in the cross beam. The cross beam is provided with a counterweight vehicle that can move along the cross beam. The counterweight vehicle and / or the cross beam have a locking structure, and the locking structure can lock the counterweight vehicle at a specified position on the cross beam.

[0006] Furthermore, the locking mechanism is arranged on the crossbeam and is located at the intersection of the crossbeam and the longitudinal beam.

[0007] Furthermore, there is one and only one pile hole in each grid.

[0008] Furthermore, the pile driving device includes a movable frame, a pile driving part, and a first driving device, wherein the pile driving part is located on the movable frame; the movable frame can be movably mounted on at least two adjacent beams, and the movable frame can move along the beams under the drive of the first driving device, and the movement path of the pile driving part passes through the pile driving hole.

[0009] Furthermore, the weight of the counterweight vehicle is adjustable.

[0010] Furthermore, the beams are parallel to each other.

[0011] Furthermore, the ground includes planted expansion bolts, the expansion bolts include connecting lugs, and the expansion bolts are connected to the longitudinal beams via the connecting lugs.

[0012] A group-anchor static pile driving method comprises: a beam erecting step, in which longitudinal beams and transverse beams are erected around the pile driving holes so that the longitudinal beams and transverse beams are staggered to form a grid, and the pile driving holes are located in the grid; a counterweight step, in which a counterweight vehicle that can move along the crossbeam is installed in the crossbeam, and the weight of the counterweight vehicle is adjusted according to counterweight requirements; and a pile driving step, in which the counterweight vehicle is moved to a specified position and locked, and a pile driving device is installed to start pile driving.

[0013] The beneficial effect is that the counterweight vehicle can apply pressure to the crossbeam, and this pressure can be used to offset the reaction force generated by the pile driving device on the crossbeam when driving the pile, which is equivalent to being able to reliably provide support for the pile driving device, thereby reducing the load on the expansion bolts and the connecting ears. Therefore, the requirements for the tightness of the connection between the ground and the expansion bolts, the rigidity requirements of the connecting ears, and the tightness of the connection between the connecting ears and the crossbeam are relatively low, and it is easier to achieve this lowered standard in actual construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a top-down view of a group-anchor static pressure pile;

[0015] In the figure: 1. Horizontal beam; 2. Longitudinal beam; 3. Expansion bolt; 4. Pile driving hole; 5. Counterweight vehicle; 6. Pile driving device. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0017] like Figure 1As shown, the pile driving device 6 includes a plurality of pile holes 4 provided on the ground and a pile driving device. The pile holes 4 are surrounded by longitudinal beams 2 parallel to the horizontal plane. A transverse beam 1 parallel to the horizontal plane is provided above the longitudinal beams 2. The transverse beams 1 and longitudinal beams 2 are staggered to form a grid, and the pile holes 4 are located within the grid. Each grid contains only one pile hole 4. The pile driving device 6 is provided on the transverse beam 1 and above the pile holes 4. The transverse beam 1 is provided with a counterweight vehicle 5 that can move along the transverse beam 1. The counterweight vehicle 5 and / or the transverse beam 1 have a locking structure that can lock the counterweight vehicle 5 in a specified position on the transverse beam 1. Preferably, the locking mechanism is provided on the transverse beam 1 at the intersection of the transverse beam 1 and the longitudinal beam 2. The weight of the counterweight vehicle 5 is adjustable, for example, the counterweight vehicle 5 has a compartment for placing sandbags. Preferably, the transverse beams 1 are parallel to each other. The pile driving device 6 shown in the figure is fixedly installed. Less preferably, the pile driving device 6 includes a movable frame, a pile driving unit, and a first drive device, with the pile driving unit located on the movable frame. The movable frame is movably mounted on at least two adjacent crossbeams 1. Driven by the first drive device, the movable frame can move along the crossbeams 1, and the movement path of the pile driving unit passes through the pile driving holes 4. Preferably, expansion bolts 3 are planted on the ground, and the expansion bolts 3 include connecting tabs, which connect the expansion bolts 3 to the longitudinal beams 2 via the connecting tabs. It should be noted that the present invention adopts the specific structure of the pile driving device 6 and the specific structure of using expansion bolts 3 to secure the longitudinal beams 2 and crossbeams 1 as described in Chinese Patent CN2011202813501.

[0018] A group-anchor static pile driving method includes: a beam erection step: erecting longitudinal beams 2 and transverse beams 1 around four pile driving holes, such that the longitudinal beams 2 and transverse beams 1 are staggered to form a grid, with the pile driving holes 4 located within the grid; a counterweighting step: installing a counterweight vehicle 5 within the transverse beam 1 that can move along the transverse beam 1, with the weight of the counterweight vehicle 5 adjusted according to counterweighting needs; and a pile driving step: moving the counterweight vehicle 5 to a designated position and locking it, installing a pile driving device 6, and commencing pile driving. When driving the pile, preferably, a counterweight vehicle 5 is installed at each of the four staggered locations around the pile driving holes to maximize the stability of the transverse and longitudinal beams.

[0019] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A stable group-anchor static pile structure, comprising a plurality of pile holes provided on the ground and a pile driving device for driving the piles, wherein longitudinal beams are provided around the pile holes, and transverse beams are provided above the longitudinal beams, wherein the transverse beams and the longitudinal beams are staggered to form a grid, wherein the pile holes are located in the grid, and the pile driving device is provided in the transverse beams, characterized in that: The crossbeam is provided with a counterweight cart that can move along the crossbeam, and the counterweight cart and / or the crossbeam have a locking structure, and the locking structure can lock the counterweight cart at a specified position of the crossbeam; the pile driving device includes a mobile frame, a pile driving part, and a first driving device, and the pile driving part is located on the mobile frame; the mobile frame can be movably installed on at least two adjacent crossbeams, and the mobile frame can move along the crossbeam under the drive of the first driving device, and the movement path of the pile driving part passes through the pile driving hole; the counterweight cart has a chamber for placing sandbags.

2. The stable group-anchor static pressure pile structure according to claim 1, characterized in that: The locking structure is arranged on the cross beam and is located at the intersection of the cross beam and the longitudinal beam.

3. The stable group-anchor static pressure pile structure according to claim 1, characterized in that: There is only one pile hole in each grid.

4. The stable group-anchor static pressure pile structure according to claim 1, characterized in that: The weight of the counterweight vehicle is adjustable.

5. The stable group-anchor static pressure pile structure according to claim 1, characterized in that: The cross beams are parallel to each other.

6. The stable group-anchor static pressure pile structure according to claim 1, characterized in that: The ground includes a planted expansion bolt, the expansion bolt includes a connecting lug, and the expansion bolt is connected to the longitudinal beam through the connecting lug.

7. A group anchor static pile method, characterized in that include: a beam erection step of erecting longitudinal beams and transverse beams around the pile holes so that the longitudinal beams and transverse beams are staggered to form a grid, and the pile holes are located in the grid; The counterweight step is to install a counterweight vehicle in the crossbeam that can move along the crossbeam, and adjust the weight of the counterweight vehicle according to the counterweight needs; Pile driving steps: Move the counterweight vehicle to the designated position and lock it, install the pile driving device and start pile driving.

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