WO1997043488A1

WO1997043488A1 - Method of constructing a pile structure and apparatus thereof

Info

Publication number: WO1997043488A1
Application number: PCT/CN1997/000045
Authority: WO
Inventors: Guoliang Zhang; Yongjie Xu
Original assignee: Guoliang Zhang; Yongjie Xu
Priority date: 1996-05-14
Filing date: 1997-05-09
Publication date: 1997-11-20
Also published as: AU2689497A

Abstract

A method of constructing a pile structure and an apparatus thereof, the method includes the following steps: making a geological survey in ground to obtain the initial size of the pile shaft and the initial size and position of the protrusions on the side wall of pile, making a hole of pile shaft, making a measurement to the side wall of the hole by the means for forming a hole of the protrusions to decide the actual size and position of the protrusions, making a hole of the protrusions by pressing the ground with the said means, the hole of the pile shaft and the holes of the protrusions are injected with concrete to form a concrete pile, making the other piles by the above steps to form pile structure. According to the method, knowing a geological information at the position of each pile simultaneously with executing the construction, so that the actual bearing capability/deformation is obtained at once, and ununiformal settlement of a building is avoided.

Description

Construction method of pile structure and special equipment thereof

The present invention relates to a pile structure in the field of civil engineering, water conservancy or municipal engineering, in particular to a construction method for a pile for construction or a pile structure for protecting a foundation pit and a dedicated device therefor. BACKGROUND

At present, pile foundations for buildings, especially for high-rise buildings, are generally based on pile foundations. The design of the pile foundations is based on one or more geological survey reports of the site foundation. The condition of the shield at the base of each pile of the foundation and the geological situation of the survey site are very different. This will cause the bearing capacity and settlement of the piles that form the foundation to be different, which will make the completed building Uneven hook settlement occurs, which is why more than 80% of the damage to buildings after construction is caused by the foundation, but there is currently no good way to solve the problem in foundation design and construction. Another disadvantage of the above construction method is that the actual bearing capacity of each pile cannot be understood after construction, and the bearing capacity is generally determined by test piles before and after construction, and the test of one or two test piles cannot represent all piles. Therefore, this method prolongs the construction period and increases the construction cost. Disclosure of the Invention

The purpose of the present invention is to provide a new method and equipment for constructing a pile structure. By using the method and equipment, the true bearing capacity of each pile can be obtained immediately after construction, and the pile hole wall can be completed at the same time as construction. And the measurement of pore soil pressure at the bottom of the pile, so that after the completion of each pile, the real bearing force and the settlement amount of the intended use period can be obtained, and the bearing force and use period of each pile in the pile structure can be obtained The settlement remains essentially the same „

The above object of the present invention is achieved by the following method, which includes the following steps: a) surveying and detecting the pile foundation, roughly understanding the condition of the foundation soil layer, and determining the size of the pile and the lining step size of the pile support and Preliminary position

b) the pile size calculated from the above survey and formation forms a pile hole in the foundation to a specified depth;

c) Detecting the actual soil mechanical properties of the soil near the preliminary position by detecting the soil body of the hole near the preliminary position of the pile body with the pile support and wing hole forming device, Final size and position of pile support wings;

d) using a pile support wing hole forming device to squeeze the soil body of the pile hole wall at the final position of the pile support wing according to the final size of the pile support wing to form a pile support wing hole;

e) The formed pile body hole and pile support wing hole are filled with concrete to form a concrete pile; a pile structure is formed.

In the above step c), when the mechanical properties of the soil at the preliminary position are detected to be poor, the pile support wing hole forming device is moved along the hole wall of the pile body to continue the detection of the hole wall soil until it is detected. The required soil layer is taken as the final position of the corresponding pile support wing.

In the above step c), when the mechanical properties of the soil at the preliminary position are detected to be poor, the position of the soil layer is still used as the final position of the corresponding pile support, but in the above step d), This position forms a pile support wing that is larger than the corresponding preliminary size at that position,

In the above step c), when the mechanical properties of the soil at the preliminary position are detected to be poor, the position of the soil layer is still used as the final position of the corresponding pile support, but in the above step d), A plurality of pile legs with corresponding preliminary dimensions are formed on the soil layer area, and the number is more than the number of pile legs initially determined at the position.

The above-mentioned pile support wings are pile bearing plates and / or pile branches.

The above-mentioned soil mechanical properties are the soil compression mechanical properties.

The mechanical properties of the soil are the friction coefficient of the soil,

In the above step c), the measurement of the mechanical properties of the soil is completed using a sensor.

After the pile body hole and pile support wing hole are formed, insert the pile hole forming quality detector into the pile body hole to inspect the forming technician of the pile body hole and pile support wing hole.

Use the night vision observation system for the quality inspection of the pile hole and pile support wing hole in the waterless hole.

Ultrasonic scanners were used to inspect the quality of the above-mentioned holes in the pile body holes and pile support wing holes containing mud.

After the concrete is poured into the hole of the pile body and the hole of the pile support wing, when the concrete reaches a certain strength, the forming quality of the pile body and the pile support is detected by an ultrasonic instrument.

In step c) above, the computer system is used to calculate the final size and position of the pile support wings. During the construction process, the computer system is used to control the operation of the pile support wing hole forming device. During the construction process, the measured values of the mechanical properties of the soil, the formed pile body, the forming quality of the pile support wing, and its size and position are measured. The relevant signals are converted into digital signals and stored in the computer system. The actual formation of the above-mentioned pile body holes and pile support wing holes is displayed by an image display for easy monitoring.

Insert reinforced or reinforced cages before pouring concrete.

Prestressed tendons are inserted before the concrete is poured. After the concrete reaches a certain strength, the prestressed tendons are prestressed and anchored.

In the above step e), the pouring of the concrete is carried out by using the duct method, the string method and the pumped concrete method.

In the above step b), the hole of the pile body is a positive circulation drilling method, a reverse circulation drilling method, a spiral drilling method, a jet flushing method, a manual digging method, a grab or bucket soil extraction method, Formed by casing squeezing, hammering and punching.

In the above step b), the above-mentioned pile body hole is formed by introducing a hole at the pile position, inserting a protection pipe into the guide hole, using an impact hammer to impact the foundation along the protection pipe to form a hole, and then raising the protection pipe, and then Put a dummy bucket into the hole.

In the above step b), the above-mentioned pile body hole is formed by the spiral drilling method, and the above-mentioned step d) is performed as follows, and the soil layer at the end of the bearing plate in the middle pile support wing is designed according to the design requirements. Hammer the layered reinforcement, put the virtual soil bucket into the bottom of the hole, put it into the pile support wing hole forming device, squeeze the pile support wing holes at the reinforcement position of each layer, lift the virtual soil bucket to form the bearing plate at the bottom of the pile .

The above step b) includes the treatment of clear soil at the bottom of the hole, even if the drilling tool is idling at the original depth until it meets the specified requirements. In addition, the pile support wing holes in step d) above are performed in accordance with the design requirements, The pile branch wing hole forming device is marked with prominent signs at the upper and lower sections of the pile branch wing hole forming device, and the pile branch wings are expanded in the order from top to bottom to form the pile branch wings. After the virtual soil bucket is raised, the piles in the pile branch wings are formed Bottom bearing disk slot.

In the above step b), the above-mentioned pile body hole is formed by the mud wall drilling method, and the above-mentioned step d) is performed in the following manner, lifting the pile support wing hole forming device, and waiting for the pile support wing hole forming device to basically stop shaking Or after turning, it slowly descends into the pile body hole, and at the same time as the above device is put, the supply pipe and the return pipe are locked by special-shaped oil pipe clamps at intervals of 3 to 5 m on the upper and lower section connecting pipes in the pile support wing hole forming device. Depth dimensions are marked on the upper and lower segment connecting pipes in the pile support wing hole forming device, and the pile support wing holes are extruded to form a pile support wing hole according to the required elevation in a prescribed sequence. After performing the above step e), pressure grouting is performed on the bottom end of the pile body and the end of the pile support wing by retaining the grouting tube to strengthen the surrounding soil.

The angle between the squeezing direction of the pile support wing hole and the direction perpendicular to the hole wall of the pile body is ± 90. The above-mentioned pile support wing hole is formed by squeezing the soil around the hole wall of the pile body along the parallel direction of the pile body axis.

Firstly, the soil in the first specified area of the selected position of the wall of the pile hole is slanted upward along the axis of the pile hole axis to form a first cavity constituting the pile support wing hole, and then along the axis of the pile hole, A second cavity forming a pile supporting wing is formed by squeezing the soil in the selected position and the second position of the hole wall of the pile body obliquely downward, and the first cavity and the second cavity together form a pile supporting wing hole. .

The soil in the first specified area of the selected position of the wall of the hole of the pile body is squeezed obliquely upward along the axis of the pile body hole to form a first cavity constituting the wing hole of the pile support. Squeeze the soil in the second specified area of the selected position of the hole wall of the pile body downward in a downward direction to form a second cavity forming a pile support wing hole, and the first cavity and the second cavity together form a pile support wing. hole. The selected location of the specified area is formed by squeezing the soil.

Firstly, a horizontal hole is formed in the surrounding soil within a predetermined area of the selected position of the hole wall of the pile body, and then the soil around the hole wall of the pile body hole located below the hole is oriented parallel to the axis of the pile body from the hole. Squeeze down to form pile support wing holes.

In the process of forming the pile support wing hole, the pile support wing reinforcement material is injected.

One part of the pile material is injected during the process of forming the pile support wing hole, and the other part is injected after the above process. The pile body hole is protected by the wall protection liquid.

The above-mentioned wall protection liquid is cement slurry. After the pile hole forming device is formed by the pile hole forming device, the pile body hole forming device is lifted and injected into the pile body hole until the position where the hole does not collapse in the pile body hole is formed. After the pile supporting wing holes, insert the grouting pipe into the bottom of the pile body hole, and simultaneously put in the granules, then press the cement slurry from the bottom of the grouting pipe through the grouting pipe under high pressure until the entire pile hole is full.

After the pile support wing holes are formed, pile material is injected into the pile body holes and the pile support wing holes.

The pile support wing hole is extruded to form a shape with a long dimension along the axial direction of the pile body hole.

The pile support wing hole is squeezed to form a spiral hole extending axially along the pile body hole.

The above-mentioned pile support wing hole is formed in the process of raising the pile body hole by the pile body hole forming device.

The pile formed above is a plain concrete pile. The above piles are arranged in rows to form a supporting pile structure.

The tops of the piles in the above-mentioned supporting pile structure are connected by coupling beams, and are connected by pile wings formed on each pile itself.

The special equipment of the above method of the present invention includes a pile support wing hole forming device, which is provided with a measuring device for measuring the mechanical properties of the foundation soil when the pile support wing hole is formed.

The measuring device is a sensor.

The sensor includes a pressure head, which is connected to a driving cylinder, which is connected to a pressure indicator.

The measuring device is a soil friction property measuring device.

The equipment also includes the operating system of the above-mentioned pile-support wing hole forming device, which includes a hydraulic station and a computer monitoring and control system.

The hydraulic station includes a hydraulic pressure display.

The computer monitoring and control system includes a data processing unit that converts related signals into digital signals and performs calculations on the related digital signals. The various digital signal displays, memories, and operating keyboards reflect the actual forming conditions of the pile body holes and pile support wing holes. Image display system,

The above computer monitoring and control system includes a work table, which is provided with a keyboard, a display, amplifying device, a pile body hole, a pile support wing hole actual forming image display, a pile support wing hole forming device joystick and a printer .

The image display system is a night vision observation system capable of detecting the quality of dry hole formation. The system includes a color camera capable of capturing images, a monitor displaying the images captured by the camera, and the camera and a power supply. Sealed tube, observation head, video light source, video recorder.

The above observation heads include a horizontal observation head for observing the wall of the hole and a vertical observation head for observing the bottom of the hole.

The above image display system includes an ultrasonic scanner for detecting the quality of the wet hole forming,

The above computer monitoring and control system includes a unit for controlling the operation of the pile branch wing hole forming device,

The pile support wing hole forming device is a hydraulic drive type, and includes a bow support mechanism for forming a pile support wing hole, and an extension of the bow compression mechanism constitutes a pressure head in the measuring device.

The measuring device is a soil friction property measuring device. The above-mentioned pile support wing hole forming device includes a pile support wing hole forming mechanism, which includes a first bow pressing arm and a second bow pressing arm, and the first bow pressing arm and the second bow pressing arm are hinged to each other through their ends. The other end of a bow pressing arm is hinged to the first connecting member, the other end of the second bow pressing arm is hinged to the second connecting member, the first connecting member is rigidly connected to the end of the piston pestle of the driving cylinder, and the second connecting member is The two piston rods are rigidly connected to the end of the other piston rod of the driving cylinder. The two piston rods have opposite movement directions but are arranged coaxially during operation. The driving cylinder includes two pistons. The two piston rods are rigidly connected with the two pistons, respectively.

The above-mentioned pile-support wing hole forming device includes a plurality of groups of pile-support wing hole forming mechanisms, and the multi-component forming mechanism is distributed at a certain distance along the longitudinal and / or transverse direction of the equipment.

The above-mentioned pile-supporting wing hole forming device includes a plurality of groups of pile-supporting wing hole forming mechanisms, which are arranged symmetrically with respect to the longitudinal axis of the equipment.

The above equipment includes a pile body hole forming device, and the pile support wing hole forming device is provided on the pile body hole forming device,

The above-mentioned pile support wing hole forming device includes a main support, on which a driver is fixed, and a pile support wing hole forming mechanism is also provided. The mechanism includes a first bow pressing arm and a second bow pressing arm. One end of the second arch pressing arm is hinged with a power rod driven by the driver, the other end of the first arch pressing arm is hinged with one end of the second arch pressing arm, and the other end of the second arch pressing arm is hinged with the first fixing member. The fixing member is located at the side of the hinge point of the first bow pressing arm and the power rod and at the side of the movement axis of the hinge point of the first bow pressing arm and the second bow pressing arm relative to the moving axis of the hinge point of the power rod and the first bow pressing arm The second fixing member is hinged to one end of the first branch plate, the other end of the first branch plate is a free end portion, and the inside of the first branch plate abuts on the hinge portion of the first bow pressing arm and the second bow pressing arm. A guide plate is also provided on the inner side of the first branch plate. The guide plate is provided with a guide groove in a parallel direction of the first branch plate. The first arch pressing arm and the second arch pressing arm are hinged by a lateral movement axis. Make the above-mentioned lateral movement axis at its Sliding, the guide groove extending toward the bow of the second lateral side of the press arm movement does not occur from the axis to the lateral displacement at the outer side.

The above device includes a main support, which is provided with a driver, and a pile-support wing hole forming mechanism. The mechanism includes a first bow pressing arm and a second bow pressing arm. One end of the first bow pressing arm is hinged with the power rod. The power lever is driven by the driver, the other end of the first bow pressing arm is hinged with one end of the second bow pressing arm, and the other end of the second bow pressing arm is hinged with a fixing member fixed on the main support. A first branch plate is integrally formed on the arch pressing arm, and a second branch plate is formed on the second arch pressing arm.

The above equipment includes a telescopic power squeezer, which can Squeeze the soil around the hole wall of the pile body in a straight line,

The above device includes an extruder that can be inserted into the soil around the hole wall of the pile body in the horizontal direction, and is connected to the driver so that when it is inserted into the soil around the hole wall, the hole can be squeezed down in a parallel direction of the axis of the pile body hole. Soil around the wall.

The above equipment includes a pile hole forming device, which is an excavator,

The above-mentioned earth digger is a submersible drilling rig, a jet punching hole former, a drill bit, a full casing rig, a forward circulation rig, a reverse circulation rig, a grab or bucket dipper.

The above-mentioned earth digger is a spiral drilling rig, which includes a drill pipe, which is a hollow pipe, the pile pipe is provided with a pile support wing hole forming device, and the bottom of the hollow drill pipe is provided with an injectable pile material communicating therewith. Or the nozzle of the wall protection liquid, the top of the drill pipe is in communication with the supply liquid of the injection material.

Another special equipment of the present invention includes a crawler running mechanism, a turntable, a cab located on the turntable, an operation system of a pile support wing hole forming device, and a boom. The bottom of the boom is connected to the turntable and its top is suspended by a sling. ^ The branch hole and / or bearing plate slot hole forming device is guided and fixed by a clamper, and the rear end of the clamper is connected to the turntable.

The above-mentioned equipment includes an operation system for a pile-supported wing hole forming device which is placed on the ground and separated from the pile-supported wing hole forming device.

By adopting the above-mentioned construction method and equipment of the present invention, the bearing capacity and settlement of each foundation pile can be truly obtained, and the bearing capacity and settlement of all the piles are basically kept uniform as a whole, so that the formed foundation will not produce unfavorable conditions. The uniform settlement can greatly reduce the hidden dangers during the use period after construction. In addition, the invention can reduce the foundation exploration workload before construction and reduce or eliminate the need for test piles or pile loading tests before and after construction, thereby greatly reducing the construction cost and shortening the construction period. Furthermore, the present invention penetrates the geological situation of the exploration foundation during the construction process of the pile, so that the bottom of each pile and the cost can be clearly understood, and the cost of the pile foundation is reduced. In addition, since the pile branch / pile bearing plate of the method according to the present invention reaches the highest phase force, the settlement during use is minimized. The advantages of the pile foundation used as a pressure bearing for the building of the present invention are described above, but It is noted that the present invention can be completely used in pile foundations that support tensile forces and overturning support structures, and can evenly resist buoyancy, that is, the building has only a small uniform float, or it can even resist bending moments, that is, Each pile in the supporting structure has a phenomenon of relatively small angular displacement that is substantially consistent. Brief description of the drawings

The present invention is described in detail below with reference to the drawings, in which:

Figures 1A-1C are schematic diagrams of the pile foundation construction method of the present invention, wherein Figure 1A is a schematic diagram of the first stage of the pile foundation construction method of the present invention, and Figure 1B is a schematic diagram of the second stage of the pile foundation construction method of the present invention, and Figure 1C is Schematic diagram of the third stage of the pile foundation construction method of the present invention;

2A-2C are schematic diagrams of a first embodiment in which a pile body hole and a pile branch hole and / or a bearing plate slot hole are simultaneously formed in the method of the present invention, showing three different construction stages;

3A-3C are schematic diagrams of a second embodiment of a pile body hole and a pile branch hole and / or a bearing plate slot hole simultaneously formed in the method of the present invention, showing three different construction stages; Three different construction phases;

5A-5C are schematic diagrams of a fourth embodiment in which a pile body hole and a pile branch hole and / or a bearing plate slot hole are simultaneously formed in the method of the present invention, showing three different construction stages;

6 is a schematic diagram of a first embodiment of the device of the present invention having both a pile hole forming device and a pile branch hole and / or a bearing plate slot hole device;

7 is a schematic diagram of a second embodiment of the device of the present invention having both a pile hole forming device and a pile branch hole and / or a bearing plate slot hole device;

FIG. 8 is a schematic diagram of a first embodiment of a branch hole and / or a bearing plate slot hole forming device in the device of the present invention having a pile body hole forming device and a pile branch hole and / or bearing plate slot hole device;

9 is a schematic diagram of a second embodiment of a branch hole / or bearing plate slot hole forming device in the device of the present invention having a pile body hole forming device and a pile branch hole and / or bearing plate slot hole device;

FIG. 10 is a schematic view of a folded state of the forming apparatus shown in FIG. 9;

11 is a schematic plan view of the working state of the forming device shown in FIG. 9;

FIG. 12 is a schematic diagram of a fourth embodiment of a branch hole and / or bearing plate slot hole forming device in the device of the present invention;

FIG. 13 is a diagram showing a folded state of the device shown in FIG. 12; FIG.

14 is a perspective view of another embodiment of a branch hole and / or bearing plate slot hole forming device in the device of the present invention;

FIG. 15 is a perspective view of another dedicated device of the present invention;

Fig. 16 is a perspective view of an operating system of a pile branch hole forming device in the apparatus of the present invention. The best way to implement the invention

The pile foundation construction method, which is a specific construction method of the pile structure of the present invention, includes the following steps: firstly conducting a geological survey on the foundation of the construction area to understand the soil conditions of the foundation in the area, and of course, it is also possible to do a test pile to understand the geological situation, According to the results of the geological survey, the preliminary pile body number, length, pile diameter, pile position, and the number, length, diameter, and position of the pile wings are drilled down to the prescribed depth with the drill to form a pile hole. As shown in FIG. 1A, the pile support wing hole forming device is then placed in the pile body hole, and the soil is squeezed by the pile support wing hole forming device at the initially determined position of the pile support wing. The extrusion mechanism is connected to the pressure gauge, and the elastic modulus or friction coefficient of the soil is obtained according to the value in the pressure gauge, so that it can be determined whether the soil layer at this position is suitable for making pile wings. If the soil layer is too soft, you can adjust the pile The position of the supporting wing or the size of the supporting wing and the number of supporting wing in the soil layer can meet the original design requirements of the supporting wing at this position. Please refer to Figure 1B. The position of the pile support wing refers to the squeeze detection of the soil layer near the weak soil layer by the above-mentioned pile support wing hole forming device until the required holding layer is found, and then the required quantity of the soil layer position determined in the manner described above is formed. If the soil layer meets the requirements, directly make the initially determined pile branch wing holes, and form the prescribed pile branch wing holes (that is, pile branch holes and / or piles) in the pile body holes in the manner described above. Bearing plate slot). Then, the whole pile hole is scanned with a scanner to check the forming quality of the pile support wing hole and the pile body hole wall. As shown in FIG. 1C, the prestressed tendons are then poured into the concrete, and after the concrete reaches a certain strength, the prestressed tendons are stretched and anchored. In an embodiment, the steps include forming a pile hole with the device 1 of the present invention. As shown in FIG. 2A, the device includes a branch hole and / or a bearing plate slot hole forming device 2 and a drilling device 3, and the pile support wing hole is formed. A pressure rod (not shown) is connected to the device 2. The pressure rod is in communication with a pressure gauge (not shown) on the ground, and then the soil of the hole wall is squeezed in an obliquely upward direction, as shown in FIG. 2B. In the end, the soil on the top of the hole is used as a fulcrum to squeeze the soil on the wall of the hole in an obliquely downward direction to form a branch hole and / or the soil on the top of the hole formed by the bearing plate groove is to be inclined downwardly. The soil of the hole wall is squeezed to form branch holes and / or bearing plate slot holes. As shown in FIG. 2C, when the branch holes and / or bearing plate slot holes are formed by using the device of the present invention to form a pile hole downward Fabrication can also be made during the process of raising the device of the present invention after the pile body is formed. In an embodiment, the steps include forming a pile hole with the device of the present invention, the device comprising a branch hole and / or a bearing plate slot hole forming device 2 and a drilling device 3, and a pressure pestle is connected to the pile support wing hole forming device 2. (In the figure (Not shown), the above pressure rod is in communication with a pressure gauge (not shown in the figure) on the ground, as shown in FIG. 3A, while the pile hole is formed downwards or later, the device of the present invention is used to obliquely upward and obliquely Simultaneously pressing down the hole wall soil to form a pile branch hole and / or a bearing plate slot hole, as shown in Figure 3B, and finally squeezed to form the shape shown in Figure 3C.

As a third embodiment in which the pile body hole and the pile branch hole and / or the bearing plate slot hole are simultaneously formed in the method of the present invention, the steps include forming the pile body hole using the device 1 of the present invention, the device 1 including the branch hole and / or A bearing plate slot hole forming device 2 and a drilling device 3, the pile support wing hole forming device 2 is connected with a pressure rod (not shown in the figure), and the pressure rod and a pressure gauge on the ground (not shown in the figure) ) Communication, as shown in FIG. 4A, during the process of forming the pile hole downward or after forming the pile hole, the above-mentioned branch hole and / or bearing plate slot hole forming device 2 can be used to squeeze the soil obliquely. As shown in FIG. 4B. The dotted line in FIG. 4B is the final squeezed state, and the state shown in FIG. 4C can be formed after the extrusion is completed.

As a fourth embodiment in which the pile body hole is formed simultaneously with the pile branch hole and the bearing plate slot hole in the method of the present invention, the steps include forming the pile body hole with the device 1 of the present invention, the device 1 including a branch hole and / or a bearing Force plate slot hole forming device 2 and drilling device 3, the pile support wing hole forming device 2 is connected with a pressure pestle (not shown in the figure), the above pressure rod and a pressure gauge on the ground (not shown in the figure) As shown in FIG. 5A, when using a device to form a pile hole downward, or when the device 1 is raised after forming the pile hole, a horizontal groove 4 can be formed on the wall of the pile hole, as shown in FIG. 5B. . After that, a specific branch hole and / or bearing plate slot hole forming device 2 (the device will be described later) in the device 1 of the present invention is used to press the soil downward from the horizontal slot 4 to form the branch hole and / Or bearing disk slot, as shown in Figure 5C.

FIG. 6 is an embodiment of the device of the present invention having both a pile hole forming device and a pile branch hole and / or a bearing plate slot hole device. The device 1 includes a diving drill 3, and the diving drill 3 includes a drill rod 5. The rod 5 is provided with a power device 6 and a pump 6A, a drill bit 7 is provided at the bottom of the drill rod, and the drill rod is also provided with one or more branch holes and / or bearing plate slot hole forming devices 2.

FIG. 7 is another embodiment of the device of the present invention. The device 1 includes an auger 8, which includes a driver 9 at the top, a spiral blade 10, a drill rod 11, and one or more branch holes formed in the drill rod 11. And / or bearing plate slot hole forming device 2.

Figure 8 is a form of the branch hole and / or bearing plate slot hole forming device in the device of the present invention, the device 2 includes two extrusion heads 17 that can be horizontally extended, as shown in Figure 8. Two extrusions There is a driving cylinder 18 between the pressure heads. When the driving cylinder 18 is extended, the extrusion head 17 can be extended in the horizontal direction. The two extrusion heads are also connected to one end of the vertical cylinder 19. When the cylinder 19 is extended, The pressing head 17 can be pressed downwards against the soil, and the forming device 2 is particularly suitable for the method shown in FIG. 4. 9 and 10 show a third form of a branch hole and / or bearing plate slot hole extrusion forming device used in the device of the present invention. The device 2 includes an outer tube 29, which is provided with a plurality of forming mechanisms and input reinforcement. The material channel 29A and the outer tube 29 are provided with holes for the forming mechanism to extend. A pump station is provided outside the outer tube. It communicates with the oil cylinder in the forming mechanism through an oil circuit tube (not shown in the figure), as shown in FIG. 10. As shown, a vertical power rod 30 is provided in the forming mechanism, and the power rod 30 is driven by the above-mentioned oil cylinder (not shown in the figure). The rod 30 passes the vertical moving shaft 31 and the upper bow pressing arm 31 and the upper bow pressing arm. 31 hinge, the upper bow pressing arm 32 is articulated with the lower branch plate 34 integrally formed by the lower bow pressing arm through the lateral movement shaft 33, the bottom of the plate 34 is hinged with the lower fixed shaft 35, and the shaft 35 is fixed relative to the outer tube 29. Upper branch The upper end of the plate 36 is hinged to the upper fixed shaft 37, which is fixed relative to the outer tube 29. In Figs. 9 and 10, only the left one (half) and the right one of the two symmetrical forming mechanisms are drawn. It is the same as that on the left, so it is not shown in the figure. Of course, one, three or more synchronization mechanisms may be provided as required. A guide plate 33 is provided inside the upper branch plate 36, and a free end portion 39 of the upper branch plate 36 is located at the connection between the upper bow pressing arm 32 and the lateral movement shaft 33. There are two guide plates 38, which are respectively disposed on both sides of the upper branch plate 36. The guide plate 38 moves the guide groove 38A of the upper lateral movement shaft 33 from the upper side. The lateral movement shaft 33 is also hinged with the upper branch slide plate 40, and the slide plate 40 abuts on the upper branch. The inner side of the plate 36 extends upwards. On both sides of the lower branch plate 34, a composite upper branch plate 41 is provided. The bottom thereof is hinged to the lower fixed shaft 35. The free end portion 42 of the composite lower branch plate 41 is provided with a limiting block 43. A pressure block 44 is provided inside the arch pressing arm 32. FIG. 9 shows the above-mentioned mechanism in an extended state, and FIG. 10 shows the above-mentioned mechanism in a collapsed state. As shown in FIG. 11, the above-mentioned forming device 2 further includes four retaining plates 45 ( 2 on each side), which are respectively provided on both sides of the upper branch plate 36. When the guide arm 46 at the lower end of the upper branch plate 36 inside the retaining plate 45 is inserted in advance, the uncompressed raw soil 48 within the effective width 47 of the branch plate It is impossible to collapse to the space 49 after the holes are formed on both sides, and the action of the upper branch plate slide 40 effectively prevents the soil above the upper branch plate 36 from falling down, ensuring the soil under the supporting force plate. Compact and compact, the advantage of the above device is that it can be avoided during production Branch bore and / or the entire disc floatation device supporting force is also generated when the grooves and apertures formed in an irregular shape, easy to collapse disadvantages.

FIG. 12 shows a fourth type of pile branch hole and / or bearing plate slot hole forming device. The device 2 is similar to the structure of FIG. 10 except that the upper branch plate in the device of FIG. 10 is pressed out first, and then lowered. The branch plate is pressed out, so the device shown in FIG. 10 is suitable for the method shown in FIG. 3, and the device 2 shown in FIG. 11 also has upper and lower branch plates 50, 51, which are simultaneously pressed out, which is suitable for the method shown in FIG. 4. The device 2 shown in FIG. 12 is further provided with an upper arch pressing arm 52 and a lower arch pressing arm 53, and the upper arch pressing arm 52 and the upper branch plate 50 are integrated. The lower branch plate 51 is integrally connected with the lower arch pressing arm 53. The top of the upper bow pressing arm 52 is hinged with the vertical power rod 54. The lever is driven by the driving cylinder. The other end of the upper bow pressing arm 52 is hinged with the lower bow pressing arm 53. The other end of the lower bow pressing arm 53 is hinged with the outer tube 55. The outer tube 55 is provided with a hole for the above mechanism to extend, and FIG. 13 is a folded state of the above device.

The above-mentioned extrusion forming device may be provided with a plurality of extrusion plates or heads in the circumferential direction, so that the bearing plate can be basically formed only after 1-2 times when it is manufactured.

As shown in FIG. 14, another pile branching hole and / or bearing plate slot hole forming device 2 in the device of the present invention includes an outer sleeve 62, which is provided with two pairs of bow pressing arms, each pair of bow pressing The arms include an upper bow pressing arm 63 and a lower bow pressing arm 64. The top end of the upper bow pressing arm 53 is hinged to the connecting member 65. The bottom end of the upper bow pressing arm 63 is hinged to the lower bow pressing arm 64. The end is connected to the connecting member 66. The top of the outer sleeve 62 is provided with a driving cylinder 67. The driving cylinder 67 is provided with an upper piston 68 and a lower piston 69. The upper piston 68 is rigidly connected to the connecting member 66 through a piston rod 70. The lower piston 69 is rigidly connected to the connecting member 65 through a piston rod 71. The middle side arm of the driving cylinder 67 is provided with a mouth 72 for passing liquid, and the bottom side wall of the driving cylinder 67 is provided with a mouth 73 for liquid passage. A mouth 74 is provided at the top for liquid passage. In the initial state of the device, that is, the state shown by the dotted line in the figure, the bow pressing arm in the device is in the retracted position, and the two pistons 68 and 69 in the driving cylinder 67 are in the middle position of the driving cylinder. When the bow pressing arm is to be driven When it is pushed out, oil is pumped into the nozzle 72 in the driving cylinder through the pump, and the oil passes through the nozzles 73 and 74. In this way, the upper piston 68 gradually rises, causing the piston rod 70 to move upward to drive the connecting member 66 to move upward, and down The piston 68 gradually descends, and at the same time, the piston rod 71 moves downwards to drive the connecting member 65 downward. Since the upper and lower bow pressing arms 63 and 64 are equal in length, the pistons 68 and 69 in the driving cylinder are also relatively and symmetrically arranged so that the connecting member 65 and 66 move at the same time so that the hinge points of the upper and lower bow compression arms can move linearly in the horizontal direction. As a result, a branch hole formed in an isosceles triangle can be pressed in the horizontal direction. The bearing plate slot hole of the pile can be formed when it is out.

As shown in FIG. 15, another dedicated device Γ of the present invention includes a track walking mechanism 90 and a turntable.

91, the cab 92 on the turntable 91 and the pile branch hole forming device:-operating system 93, a boom 94, the bottom of the boom 94 is connected to the turntable 91, and the top end of the branch hole and / or bearing is suspended by a sling. The force plate slot forming device 2 is guided and fixed by a clamper 95, and the rear end of the clamper 95 is connected to the turntable 91 described above. The operating system 93 of the above-mentioned pile branch hole forming device is basically the same as the operating system 73 of the pile branch hole forming device shown in FIG. 16 (to be described later), except that the former is provided on the walkable special equipment Γ of the present invention. The latter is related to the branch hole and / or bearing plate slot hole forming device. Separately installed on the ground.

As shown in FIG. 16, the operating system of the pile-supporting wing hole forming device in the device may also be the operating system 73 of the above-mentioned pile-supporting wing hole forming device, which is provided on the ground. The system 73 includes a hydraulic station 76 and a computer. Monitoring and control system 87. The above hydraulic station 76 includes a hydraulic pressure display

The above computer monitoring and control system 87 includes a data processing unit that converts related signals into digital signals and performs operations on the related digital signals. The various digital signal displays and memories described above act as keyboards to reflect the actual conditions of the pile hole and pile support wing hole. Formed image display system and printer.

As can be seen from FIG. 16, the above-mentioned computer monitoring and control system 87 includes a workbench 78, which is provided with a keyboard 79, a display 80, a sound reinforcement device 81, a pile hole, and a pile support wing hole. The actual forming image display 82, the pile support wing hole forming device control lever 83.

The image display system 82 is a night vision observation system capable of detecting the quality of dry hole formation. The system includes a color camera capable of capturing images, a monitor displaying the images captured by the cameras, and the camera and a power source installed on the ground. A sealed tube, an observation head, a light source for video recording, and a video recorder. The above observation head includes a horizontal observation head for observing a hole wall and a vertical observation head (not shown in the figure) for observing a hole bottom.

The image display system includes an ultrasonic scanner (not shown in the figure) for detecting the amount of the shield formed by the wet hole.

The above computer monitoring and control system includes a unit (not shown in the figure) for controlling the longitudinal direction of the pile branch wing hole forming device.

Claims

Rights request

1. A construction method for a pile structure, the steps include:

a) Survey and detect the piling foundation, roughly understand the condition of the foundation soil layer and determine the size of the pile and the lining step size and preliminary position of the pile support; degree;

c) detecting the soil body of the hole near the preliminary position of the pile body hole wall by the pile support wing hole forming device to obtain the actual soil mechanical properties of the soil near the preliminary position, thereby determining 0 piles Final wing size and position;

e) pouring concrete into the formed pile hole and pile support wing hole to form a concrete pile;

f) The other piles in the pile structure are constructed according to the steps described above to form a pile structure composed of a plurality of concrete piles 5.

2. The method according to claim 1, wherein in the step c), when the mechanical properties of the soil at the preliminary position are detected to be poor, the pile is moved along the hole wall of the pile body. The wing hole forming device continues to detect the soil on the hole wall until the required soil layer is detected, and uses the position of the soil layer as the final position of the corresponding pile wing.

0 3. The method according to claim 2, wherein the pile support wings are pile branches,

4. The method according to claim 1, wherein in the step c), when the mechanical properties of the soil at the preliminary position are detected to be poor, the position of the soil layer is still used as The final position of the corresponding pile support wing, but in the step d), a pile support wing of a corresponding preliminary size at the position is formed at the position.

5. The method according to claim 1, characterized in that in step c), when the mechanical properties of the soil at the preliminary position are detected to be poor, the position of the soil layer is still set. As the final position of the corresponding pile support wings, in the step d), a plurality of pile support wings with corresponding preliminary dimensions are formed on the soil layer area, and the number of the pile support wings is greater than the initial value at the position. Determined number of pile supports,

6. The method according to claim 1 or 4, wherein the pile supporting wings are pile bearing plates and / or pile branches.

7. The method according to claim 1, wherein the mechanical properties of the soil body are mechanical properties of soil compression.

8. The method according to claim 1, wherein the mechanical property of the soil body is a friction coefficient of the soil body.

5 9. The method according to claim 1, characterized in that in the step c), the measurement of the soil mechanical shield is performed using a sensor.

10. The method according to claim 1, wherein after the pile hole and the pile support wing hole are formed, the pile hole forming quality detector is inserted into the pile body hole to shape the pile body hole and the pile support wing hole. The technician performs the test.

The method according to claim 10, wherein a quality inspection of the hole in the pile body hole and the pile support wing hole in the waterless hole is performed by using a night vision observation system.

12. The method according to claim 10, wherein an ultrasonic scanner is used for quality inspection of the hole in the pile body and the pile support wing hole in which mud is contained.

13. The method according to claim 1, characterized in that, after the concrete is poured into the pile body hole and the pile support wing hole 5, when the concrete reaches a certain strength, the pile body and the pile support wing are formed by using an ultrasonic instrument. Quality inspection.

14. The method according to claim 1, wherein in step c), a computer system is used to calculate the final size and position of the pile wing.

15. The method according to claim 1, characterized in that, during construction, a computer system is used to control the manipulation of the pile support wing hole forming device.

16. The method according to claim 1, characterized in that during the construction process, the measured signals of the mechanical properties of the soil, the formed mass of the pile body, the forming mass of the pile wing and the relevant signals of its size and position are converted into Digital signal and stored in computer system.

17. The method according to claim 11 or 12, wherein an actual display of the pile hole and the pile support wing hole is displayed by an image display 5 for easy monitoring.

18. The method according to claim 1, characterized in that, before the ^ injection of concrete, a steel bar or a steel bar is inserted.

19. The method according to claim 1, wherein a prestressed tendon is inserted before the concrete is poured, and after the concrete reaches a certain strength, the prestressed tendon is prestressed and anchored.

020. The method according to claim 1, characterized in that, in the step e), the pouring of the concrete is performed by using a duct method, a string method and a pumped concrete method,

21. The method according to claim 1, characterized in that, in the step b), the hole of the pile body is a positive circulation drilling method, a reverse circulation drilling method, a spiral drilling method, and jetting soil The method is formed by manual digging, grabbing or digging with soil, driving into the casing and squeezing, and hammering and punching.

22. The method according to claim 1, characterized in that, in the step b), the 5 pile body holes are formed by introducing holes at the pile positions, and inserting protective tubes into the guide holes, An impact hammer is used to impact the foundation along the protective tube to form a hole, then the protective tube is raised, and then a virtual soil bucket is put into the hole.

23. The method according to claim 1, wherein in the step b), the pile hole is formed by a spiral drilling method, and the step d) is performed in the following manner, and The soil layer at the end of the bearing plate in the middle pile support wing is stratified and strengthened according to the design requirements.

After the bottom of the hole, the pile support wing hole forming device is placed, and the pile support wing holes are extruded at the reinforcement position of each layer, and the virtual soil bucket is raised to form a bearing plate at the bottom of the pile.

24. The method according to claim 23, characterized in that the step b) comprises the treatment of clear soil at the bottom of the hole, even if the drill is idling at the original depth until the prescribed requirements are reached, and the step d) The pile-supporting wing holes in this way are carried out in accordance with the design requirements,

15 The upper and lower sections of the forming device are marked at the prominent positions of the pile support wings, and the pile support wings are expanded from top to bottom to form the pile support wings. After the virtual soil bucket is raised, the pile bottom bearing plate in the pile support wings is formed. Slot.

25. The method according to claim 1, characterized in that, in the step b), the pile hole is formed by a mud wall drilling method, and the step d) is performed in the following manner, The pile support wing hole forming device is lifted, and after the pile support wing hole forming device basically stops shaking or turning, it is lowered into the pile body hole, and the upper and lower sections in the pile support wing hole forming device are simultaneously inserted into the device. The section connecting pipe uses special-shaped tubing clamps to lock the supply and return pipes at intervals of 3 to 5m. The upper and lower section connecting pipes in the pile support wing hole forming device are marked with a depth dimension, and are extruded in the required height and in the prescribed order Pile support wing holes.

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26. The method according to claim 1, wherein after performing step e),

25 Pressure grouting of the bottom end of the pile body and the end of the pile support wing by reserving grouting pipes to reinforce the surrounding soil.

27. The method according to claim 1, wherein an angle between an extrusion direction of the pile support wing hole and a direction perpendicular to the wall of the pile body hole is ± 90 °.

28. The method according to claim, wherein the pile support wing holes are formed by squeezing the soil around the hole wall of the pile body along the parallel direction of the 30 axis of the pile body.

29. The method according to claim 1, characterized in that it first follows the oblique direction of the axis of the pile shaft. The soil in the first specified area of the selected position of the wall of the pile body hole is squeezed upward to form a first cavity constituting the pile support wing hole, and then the pile body hole is slanted downward along the axis of the pile body hole. The soil in the second position of the selected position of the hole wall is extruded to form a second cavity constituting the pile support wing, and the first cavity and the second cavity together form the pile support wing hole.

30. The method according to claim 1, characterized in that the soil in the first specified area of the selected position of the wall of the hole of the pile hole is slanted upwardly along the axis of the pile hole to form a pile support wing hole. At the same time, the soil in the second specified area of the selected position of the wall of the hole of the pile hole is squeezed in an obliquely downward direction of the axis of the pile hole to form a second hole constituting the pile support wing hole. Cavity, the first cavity and the second cavity together form a pile support wing hole.

31. The method according to claim 1, wherein the pile support wing hole is only the soil in a predetermined area of the selected position of the wall of the pile hole wall through the obliquely downward direction along the axis of the pile hole. Formed by extrusion.

32. The method according to claim 1, wherein a horizontal hole is first formed in the surrounding soil within a predetermined area of the selected position of the hole wall of the pile body, and then the hole will be located below the hole from the hole The soil around the hole wall of the pile body hole is squeezed downward along the parallel direction of the shaft axis of the pile body to form the pile support wing hole.

33. The method according to claim 1, wherein the pile support wing reinforcement material is injected during the process of forming the pile support wing holes.

34. The method according to claim 1, wherein part of the pile material is injected during the process of forming the pile support wing hole, and the other part is injected after the process, and the pile body hole is protected by the wall protection liquid. of.

35. The method according to claim 1, wherein the wall protection liquid is cement slurry, which is formed by injecting the pile body hole forming device and injecting the pile body hole after forming the pile body hole by means of the pile body hole forming device. Inside, up to the position where the hole in the pile body does not have a hole, after the pile support wing hole is formed, insert the grouting tube into the bottom of the pile body hole, at the same time, put in pellets, and then pass the grouting tube from the bottom of the grouting tube under high pressure. The opening is pressed into the cement slurry until the entire pile hole is filled.

36. The method according to claim 1, wherein after the pile support wing holes are formed, the pile body holes and the pile support wing holes are injected with pile material.

37. The method according to claim 1, wherein the pile support wing hole is extruded into a shape having a long dimension along the axial direction of the pile body hole.

38. The method according to claim 1, wherein the pile support wing holes are extruded Into a spiral hole extending axially along the pile body hole.

39. The method according to claim 1, wherein the pile support wing hole is formed during the process of forming a pile hole by a pile hole forming device.

40. The method according to claim 1, characterized in that the formed pile is a plain mixed 5-concrete pile.

41. The method according to claim 1, wherein the piles are arranged in a row to form a supporting pile structure,

42. The method according to claim 41, wherein the tops of the piles in the supporting pile structure are connected by coupling beams, and are connected by pile wings formed on each pile itself.

43. A special device for the method according to claim 1, characterized in that the device comprises a pile support wing hole forming device, and the device is provided with a mechanics for the foundation soil when the pile support wing hole is formed. Measuring device for measuring properties.

44. The method according to claim 43, characterized in that the detector is a sensor.

45. The method according to claim 44, wherein the sensor comprises a pressure 5 head, the pressure head is connected to a driving cylinder, and the driving cylinder is connected to a pressure display.

46. The method according to claim 41, wherein the measuring device is a soil friction measuring instrument.

47. The method according to claim 41, wherein the device further comprises an operation system of the pile branch wing hole forming device, and the system includes a hydraulic station and a computer monitoring and control system.

48. The method according to claim 47, wherein the hydraulic station comprises a hydraulic pressure display,

49. The method according to claim 47, wherein the computer monitoring and control system includes a data processing unit that converts related signals into digital signals and performs operations on the related digital signals, the various digital signals Display and memory, operating keyboard, and image display system that reflect the actual formation of the pile hole, pile support wing hole.

50. The method according to claim 49, wherein the computer monitoring and control system comprises an operating table, and the operating table is provided with a keyboard, a display, an amplifying device, a pile hole, and a pile supporting wing hole. Formed image display, pile support wing hole forming device, longitudinal rod and printer.

0 51. The method according to claim 49, wherein the image display system is a night vision observation system capable of detecting dry hole forming quality, and the system includes an image A color camera for shooting, a monitor for displaying images taken by the camera, a sealed tube for installing the camera and a power source, an observation head, a light source for camera, a video recorder.

52. The method according to claim 51, wherein the observation head comprises a horizontal observation head for observing a hole wall and a vertical observation head for observing a hole bottom.

53. The method according to claim 49, wherein the image display system comprises an ultrasonic scanner for detecting the quality of the wet hole forming.

54. The method according to claim 47, wherein the computer monitoring and control system includes a unit that controls the manipulation of the pile branch wing hole forming device.

55. The method according to claim 45, wherein the pile support wing hole forming device is a hydraulic drive type, and comprises a pile support wing hole forming bow pressing mechanism, and an extension of the bow pressing mechanism constitutes Pressure head in the tester.

56. The method according to claim 43, wherein the measuring device is a soil friction property measuring instrument.

57. The method according to claim 43 or 45, wherein the pile support wing hole forming device comprises a pile support wing hole forming mechanism, and the mechanism includes a first bow pressing arm and a second bow pressing arm, The first bow pressing arm and the second bow pressing arm are hinged to each other through their ends, the other end of the first bow pressing arm is hinged to the first connecting member, and the other end of the second bow pressing arm is hinged to the second connecting member. The first connecting piece is rigidly connected to the end of the piston rod of the driving cylinder, the second connecting piece is rigidly connected to the other end of the piston rod of the driving cylinder, and the two piston rods move in opposite directions when working but Coaxially arranged, the drive cylinder includes two pistons, which move in opposite directions but are coaxially arranged during operation, and the two piston rods are rigidly connected to the two pistons, respectively.

58. The method according to claim 43 or 45, wherein the pile-supporting wing hole forming device comprises a plurality of groups of pile-supporting wing hole forming mechanisms, and the multi-component forming mechanism is arranged along a longitudinal direction and / or a transverse direction of the equipment according to certain Pitch distribution,

59. The method according to claim 43 or 45, wherein the pile-supporting wing hole forming device comprises a plurality of groups of pile-supporting wing hole forming mechanisms, and the multi-component forming mechanism is symmetrically arranged with respect to a longitudinal axis of the equipment.

60. The method according to claim 43 or 45, wherein the device comprises a pile body hole forming device, and the pile branch wing hole forming device is provided on the pile body hole forming device.

61. The method according to claim 43, 45 or 60, wherein the pile support wing hole forming device comprises a main support, on which a driver is fixed, and a pile support wing hole forming is further provided. A mechanism comprising a first bow pressing arm and a second bow pressing arm, one end of the first bow pressing arm is hinged with a power rod, the power rod is driven by the driver, and the first bow pressing arm is One end is hinged to one end of the second bow pressing arm, and the other end of the second bow pressing arm is hinged to the first fixing member, the fixing member is located at a side of the hinge point between the first bow pressing arm and the power rod and is at the first Articulated arm and second arched arm

5 points relative to the side of the axis of movement of the hinge point of the power rod and the first bow pressure arm, the second fixing member is hinged to one end of the first branch plate, and the other end of the first branch plate is a free end. The inside of the branch plate is abutted against the hinge portion of the first and second bow pressing arms, and a guide plate is also provided inside the first branch plate, and the guide plate is provided with a guide groove in a parallel direction of the first branch plate. A bow pressing arm and a second bow pressing arm are articulated through a lateral movement shaft, the guide groove can slide the lateral movement shaft in it, and the guide groove is oriented from a position where the lateral movement shaft does not undergo lateral displacement outward The second bow compression arm extends on one side.

62. The method according to claim 43, 45 or 60, wherein the device comprises a main support member provided with a driver, and further provided with a pile support wing hole forming mechanism, the mechanism including a first bow A pressing arm and a second bow pressing arm, one end of the first bow pressing arm is hinged with a power rod, the moving 5 force lever is driven by the driver, and the other end of the first bow pressing arm is pressed with a second bow One end of the arm is hinged, the other end of the second arch pressing arm is hinged with a fixing member fixed on the main support, a first branch plate is integrally formed on the first arch pressing arm, and a second branch is formed on the second arch pressing arm board.

63. The method according to claim 43, 45 or 60, wherein the device comprises a telescopic power squeezer, which can squeeze the pile body in a straight line along the oblique downward direction of the shaft axis of the pile body. Soil around the hole wall.

64. The method according to claim 43, 45 or 60, wherein the device comprises an extruded member that can be inserted into the soil around the hole wall of the pile body in a horizontal direction, and is connected to the driver so that when it is inserted In the soil around the hole wall, you can squeeze down the soil around the hole wall along the parallel direction of the hole axis of the pile body.

5 65. The method according to claim 43, wherein the equipment comprises a pile hole forming device, and the device is an earth excavator.

66. The method according to claim 65, wherein the earth-moving shaper is a submersible drilling rig, a jet punching hole former, a drill bit, a full-hole drilling rig, a positive circulation drilling rig, a reverse circulation drilling rig, and grabbing Earthenware or bucket grab.

67. The method according to claim 65, wherein the earth digger is a spiral drilling rig, which comprises a drill pipe, the drill pipe is a hollow pipe, and the pile pipe is provided with a pile supporting wing. Hole forming The device, the bottom of the hollow drill pipe is provided with a nozzle which can communicate with the pile material or the wall protection fluid, and the top of the drill pipe is in communication with the injection material supply liquid.

68. The method according to claim 43, wherein the equipment comprises a crawler running mechanism, a turntable, a cab located on the turntable, an operating system of a pile-support wing hole forming device, and a boom, and the bottom of the boom Connected to the turntable, the top of which is suspended by a sling to branch holes and / or bearing plate slot hole forming device, the device is guided and fixed by a clamper, the rear end of the clamper is connected to the turntable.

69. The method according to claim 43, wherein the equipment comprises an operation system of a pile-supported wing hole forming device which is placed on the ground and separated from the pile-supported wing hole forming device.