Stirring pile planting and middle digging hole guiding equipment and using method

Abstract

The invention discloses stirring pile planting and middle digging hole guiding equipment and a using method, and relates to the technical field of precast pile planting, the stirring pile planting and middle digging hole guiding equipment specifically comprises a middle digging mechanism capable of conducting middle digging hole guiding, a first power head and a second power head, the first power head and the second power head can be switched, a stirring mechanism is connected to the first power head, and the middle digging mechanism is connected to the second power head; the middle digging mechanism is used for penetrating through a hard stratum to form a through hole channel allowing the stirring mechanism to pass through, or the middle digging mechanism is used for penetrating through a sand stratum to stir and deposit muck so as to provide a hole guiding channel for guiding the precast pile to pass through. A stirring pile planting construction method, a stirring middle digging pile planting construction method and a middle digging hole guiding pile planting construction method are integrated, so that a precast pile can penetrate through a hard rock stratum, iron plate sand and other complex stratums, the geological adaptability is improved, the stirring pile planting efficiency can be improved, the hard stratum rock breaking time and the pile planting time are saved, the precast pile quality is improved, and the construction period is shortened; the economic benefit is improved.

Description

Technical Field

[0001] This invention relates to the field of precast pile installation technology, and more specifically, to a mixing pile installation and mid-drilling pilot hole device. Furthermore, this invention also relates to a method of using the aforementioned mixing pile installation and mid-drilling pilot hole device. Background Technology

[0002] In recent years, with the increasing attention and development of precast pile planting technology, the market for integrated mixing and planting machines has seen gradual growth.

[0003] In related technologies, the integrated mixing and pile planting machine mainly includes a chassis, on which a mixing mechanism is installed. A pile driving mechanism is located next to the mixing mechanism on the chassis. The pile driving mechanism includes a clamping assembly and a crane located next to the clamping assembly. The crane is connected to the chassis, and the clamping assembly is slidably connected to the chassis. A third hydraulic cylinder is located on the chassis to drive the clamping assembly. This type of integrated mixing and pile planting machine is generally only used for softer strata such as backfill and clay. It cannot effectively penetrate complex strata with higher hardness, such as iron plate sand and inclined rock combinations. Furthermore, the sedimentation of the mixed soil hinders the entry of precast piles.

[0004] In summary, how to effectively penetrate complex strata with high hardness and avoid the problem of soil deposition after mixing are problems that urgently need to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the object of the present invention is to provide a mixing pile planting and mid-drilling pilot hole device that can effectively penetrate complex strata with high hardness and avoid the deposition of slag after mixing. Another object of the present invention is to provide a method of using the above-mentioned mixing pile planting and mid-drilling pilot hole device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A mixing pile planting and mid-drilling pilot hole equipment includes: Lower fuselage; The upper fuselage is rotatably connected to the lower fuselage; The power assembly includes a first power head and a second power head, which are located on opposite sides of the upper body. The rotation of the upper body can drive the first power head or the second power head to move to the working position. A mixing mechanism is connected to the first power head, and the mixing mechanism is used for ground mixing and grouting operations. A pile-planting mechanism is used to move precast piles into the mixing holes formed by the mixing mechanism. The tunneling mechanism is connected to the second power head. The tunneling mechanism is used to penetrate hard strata to form a through channel through which the mixing mechanism can pass, or the tunneling mechanism is used to pass through sandy strata to mix sediment and provide a guide channel for guiding the precast pile.

[0007] Preferably, the tunneling mechanism includes an upper platform and a double-rail pile frame. The upper platform is located on the upper body, and the double-rail pile frame is installed on the upper platform. The first power head and the second power head are slidably connected to the two sides of the double-rail pile frame, respectively.

[0008] Preferably, the double-guide rail pile frame is equipped with a fixed pulley and a pressure winch. The pressure winch is connected to the first power head or the second power head via a steel wire rope, and the steel wire rope is threaded through the fixed pulley.

[0009] Preferably, the tunneling mechanism further includes a tunneling drill rod connected to the second power head.

[0010] Preferably, the stirring mechanism includes a stirring drill rod, which includes a polished rod section, a blade drill rod section, and a spiral drill rod section connected in sequence. The two ends of the blade drill rod section are detachably connected to the polished rod section and the spiral drill rod section, respectively. The polished rod section is connected to the first power head.

[0011] Preferably, the pile driving mechanism includes a pile driving platform, and the lower body is connected to the pile driving platform via a hydraulic cylinder. The hydraulic cylinder can drive the pile driving platform to move so that the central pile is aligned with the mixing hole or the pilot hole channel.

[0012] Preferably, the pile driving platform includes a pile clamping box for clamping the precast pile and a pile driving cylinder. The pile driving cylinder is located on the upper side of the pile clamping box and is used to provide downward pressure to drive the precast pile to sink.

[0013] Preferably, the working position includes the center pile position and the side pile position, and the movement of the hydraulic cylinder and the rotation of the upper body are used to move the pile driving platform to the center pile position or the side pile position.

[0014] The present invention also provides a method of using a mixing pile planting and mid-drilling pilot hole equipment, applicable to any of the above-mentioned mixing pile planting and mid-drilling pilot hole equipment, the method of use comprising: The first power head, located in the working position, drives the mixing mechanism to perform mixing and grouting operations. The need to introduce the intermediate excavation mechanism is determined based on the operating status of the mixing mechanism. If so, control the stirring mechanism to rotate onto the vehicle and control the upper body to rotate, so that the second power head drives the middle excavator to the working position; control the middle excavator to operate so as to penetrate the hard stratum; After the tunnel boring machine penetrates the hard stratum, the machine is controlled to rotate and ascend, and the upper body is controlled to rotate so that the mixing mechanism reaches the working position. The mixing mechanism continues to perform mixing and grouting operations until a preset depth is reached. When the preset depth is reached, the machine is controlled to rotate and ascend, and the upper body is controlled to rotate so that the tunnel boring machine reaches the working position. The machine boring machine is then controlled to perform mixing and sedimentation of the slag, and the pile planting mechanism is controlled to implant the precast piles. Otherwise, continue the grouting operation until the preset depth is reached, and control the pile planting mechanism to implant the precast pile.

[0015] Preferably, the conditions requiring the introduction of the tunneling mechanism include: The geological data of the construction site are compared with the travel depth of the mixing mechanism, and the geological structure is determined by the travel speed of the mixing mechanism. If the geological structure is hard rock, iron plate sand, or sandy strata, then it is determined that the tunneling mechanism needs to be introduced.

[0016] The present invention provides a mixing and planting pile and mid-drilling pilot hole device, comprising an upper body, a lower body, a power unit, a mixing mechanism, a pile planting mechanism, and a mid-drilling mechanism. The upper body is rotatable relative to the lower body, allowing either a first or second power head to rotate to a working position. The mixing mechanism is connected to the first power head to perform ground mixing and grouting operations. During mixing, if a hard stratum is encountered, the second power head is switched to drive the mid-drilling mechanism to penetrate the hard stratum and form a through-hole for the mixing mechanism to pass through. Then, the first power head is switched back to the original power head. If a sandy stratum is encountered, the second power head is switched again to drive the mid-drilling mechanism to mix the sand, providing a pilot hole channel to guide the precast pile through, ensuring reliable implantation of the precast pile into the mixing hole. If the mid-drilling mechanism is not required during mixing, the precast pile can be directly implanted into the mixing hole after the mixing mechanism reaches a preset depth.

[0017] The beneficial effects of this invention are: mixing, tunneling, and pile driving are all performed on the same machine; tunneling can effectively penetrate hard strata with high hardness; at the same time, tunneling can stir up the sediment in sandy strata and deliver precast piles to the bottom of the hole, thus improving construction efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the mixing pile planting and mid-excavation pilot hole equipment provided by the present invention; Figure 2 for Figure 1 The front view; Figure 3 for Figure 1 Top view; Figure 4 This is a partial schematic diagram of the stirring drill rod provided by the present invention; Figure 5 This is a schematic diagram of the structure of the drilling rod and the mixing drill rod provided by the present invention; Figure 6 This is a schematic diagram of pile driving during mixing provided by the present invention; Figure 7 This is a schematic diagram of the mixing pile construction provided by the present invention; Figure 8 This is a flowchart illustrating the usage method of the mixing pile planting and drilling equipment provided by the present invention.

[0020] Figures 1-8 In the accompanying drawings, the reference numerals include: 1-Power assembly; 2-Sandy stratum; 3-Mixing mechanism; 4-Intermediate excavation mechanism; 5-Pile planting mechanism; 6-Hard stratum; 7-Sedimentary slag; 8-Precast pile; 11-First power head; 12-Second power head; 31-Smooth rod section; 32-Blade drill rod section; 33-Auger drill rod section; 34-Internal hexagonal joint; 35-External hexagonal joint; 331-Guide plate; 332-Rod cylinder; 333-Support plate; 41-Intermediate drilling rod; 42-Double guide rail pile frame; 43-Upper platform; 44-Pressure winch; 45-Fixed pulley; 51-Pile clamping box; 52-Crossbeam; 53-Pile driving cylinder; 54-Pile seat. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The core of this invention is to provide a mixing and drilling equipment for pile driving, which realizes mixing, drilling, and pile driving operations on the same machine. The drilling operation can effectively penetrate complex strata with high hardness, expand the application range of precast piles, improve construction efficiency, and enhance the bearing capacity of the foundation. At the same time, the drilling operation can stir up the deposited slag and deliver the pile to the bottom of the hole, thus accelerating the construction period. Another core aspect of this invention is to provide a method for using the above-mentioned mixing and drilling equipment for pile driving.

[0023] The mixing and piling equipment and mid-drilling borehole excavation device provided by this invention includes an upper body, a lower body, a power unit 1, a mixing mechanism 3, a piling mechanism 5, and a mid-drilling mechanism 4. Please refer to the following for details. Figure 1 , Figure 2 , Figure 3 .

[0024] The upper body is rotatably connected to the lower body, specifically through a slewing bearing. The lower body is relatively fixed, and the rotation of the upper body enables the rotation of the power unit 1.

[0025] The power assembly 1 includes a first power head 11 and a second power head 12, which are located on opposite sides of the upper body. When the upper body rotates, either the first power head 11 or the second power head 12 can be moved to a working position, specifically the position to be constructed. Specifically, the first power head 11 and the second power head 12 are components capable of providing power, such as providing power for rotational mixing to perform grouting operations.

[0026] The mixing mechanism 3 is connected to the first power head 11. Specifically, the first power head 11 provides the mixing mechanism 3 with the power to mix, enabling the mixing mechanism 3 to penetrate the stratum to carry out mixing and grouting operations until the target depth is reached.

[0027] The pile planting mechanism 5 is used to move the precast pile 8 into the mixing hole formed by the mixing mechanism 3. When the mixing mechanism 3 is operating normally and can mix to the target depth, the mixing mechanism 3 is rotated onto the vehicle after reaching the target depth; the pile planting mechanism 5 is used to pressurize the precast pile 8 to the target depth position in the mixing hole, thus completing the pile planting operation.

[0028] The tunneling mechanism 4 is connected to the second power head 12. The tunneling mechanism 4 is used to penetrate the hard stratum 6 to form a through channel through which the mixing mechanism 3 can pass, or the tunneling mechanism 4 is used to mix the sediment slag 7 to provide a guide channel for the precast pile 8 to pass through.

[0029] In one specific implementation, when the mixing mechanism 3 is operating, if it encounters complex geological conditions such as hard rock layers or iron plate sand, the mixing mechanism 3 alone cannot continue mixing and it is necessary to use the tunneling mechanism 4 to break through the hard geological layer 6. In this case, the mixing mechanism 3 is first rotated onto the vehicle by the first power head 11 and moved out of the geological layer. Then, by rotating the upper body, the second power head 12 and the tunneling mechanism 4 connected to it can be rotated to the position. The second power head 12 drives the tunneling mechanism 4 to penetrate the hard geological layer 6, so as to provide a through channel so that the mixing mechanism 3 can continue to pass through the hard geological layer 6 through the through channel, so that the mixing mechanism 3 can mix to the target depth. Then, the pile planting mechanism 5 can be used to carry out the pile planting operation.

[0030] In another specific implementation, after the mixing and grouting by the mixing mechanism 3 is completed, if the pile cannot be planted due to sandy soil layer 2 and slag deposits, the second power head 12 drives the tunneling mechanism 4 to perform tunneling and pre-drilling. The tunneling mechanism 4 is directly inserted into the inner hole of the precast pile 8 to break up the slag in front and mix the deposited slag 7, ensuring that the pile reaches the target depth. Here, "after the mixing and grouting by the mixing mechanism 3 is completed" can refer to the situation where the tunneling mechanism 4 has not yet penetrated the hard soil layer 6, or it can refer to the situation where the tunneling mechanism 4 has already penetrated the hard soil layer 6.

[0031] In this embodiment, the second power head 12 can be detachably connected to the digging mechanism 4. The power of the second power head 12 is greater than that of the first power head 11. Therefore, the second power head 12 can serve as an auxiliary power source for stirring. Specifically, after removing the digging mechanism 4 from the second power head 12, a structure with a long rod can be connected to it to stir to a deeper location. Unlike the stirring mechanism 3 carried by the first power head 11, the detachable long rod of the second power head 12 can be assembled to meet the usage requirements of the target stirring depth.

[0032] Based on the above, the stirring mechanism 3 connected to the first power head 11 can also be configured with an assembled long rod to meet the usage requirements of different target depths by driving the stirring mechanism 3 through the first power head 11. The specific configuration can be flexibly set according to the actual situation.

[0033] like Figure 6 In this embodiment, the specific construction process of mixing and excavating piles is as follows: the mixing and excavating piles and the excavation pilot hole equipment are in place; like Figure 6 a. The first power head 11 and its connected mixing mechanism 3 are mixed and positioned, and the grout is injected by mixing through the mixing mechanism 3 until the target depth is reached; like Figure 6b. When encountering hard rock formations or iron plate sand, rotate the upper body to bring the second power head 12 to the working position, and use the middle excavation mechanism 4 to break through the rock formation through the second power head 12; like Figure 6 c. For example Figure 6 d. Continue mixing to the target depth using the mixing mechanism 3. After mixing is complete, the mixing mechanism 3 rotates onto the vehicle, and the pile is planted using the pile planting mechanism 5. like Figure 6 e. For example Figure 6 f. When encountering sandy soil layer 2 or slag deposits that prevent pile planting, switch the second power head 12 to drive the middle excavation mechanism 4 to perform middle excavation and lead hole drilling. Combine the precast pile 8 with the middle excavation mechanism 4 to plant the pile in the form of middle excavation. The middle excavation mechanism 4 stirs up the deposited slag and the precast pile 8 reaches the bottom of the mixing hole. Once the pile planting is complete, the mixing and planting equipment and the central excavation and pilot hole equipment will be moved.

[0034] Based on the above embodiments, please refer to Figure 1 The excavator 4 includes an upper platform 43 and a double guide rail pile frame 42. The upper platform 43 is located on the upper body, and the double guide rail pile frame 42 is installed on the upper platform 43. The first power head 11 and the second power head 12 are respectively slidably connected to the two sides of the double guide rail pile frame 42.

[0035] The double-guide rail pile frame 42 can provide guidance for the up and down movement of the first power head 11 and the second power head 12, thus ensuring the reliability of the up and down movement of the mixing mechanism 3 and the tunneling mechanism 4.

[0036] Both the mixing mechanism 3 and the tunneling mechanism 4 can rotate to break through the strata. The first power head 11 and the second power head 12 can provide reliable rotational power. The mixing mechanism 3 and the tunneling mechanism 4 can be loaded and unloaded by sliding the first power head 11 and the second power head 12 relative to the double guide rail pile frame 42. Specifically, the first power head 11 can move while providing rotational power so that the mixing mechanism 3 can move down while mixing, until the mixing mechanism 3 stops working after mixing to the target depth.

[0037] Specifically, the dual-guide rail pile frame 42 is equipped with two guide rails corresponding to the first power head 11 and the second power head 12 respectively, so as to provide reliable guidance when either the first power head 11 or the second power head 12 moves.

[0038] Based on any of the above embodiments, please refer to Figure 1 The double-rail pile frame 42 is equipped with a fixed pulley 45 and a pressure winch 44. The pressure winch 44 is connected to the first power head 11 or the second power head 12 by a steel wire rope, and the steel wire rope is threaded through the fixed pulley 45.

[0039] In one specific implementation, a single pressurized winch 44 is provided to provide both downward pressure and lifting power. Specifically, the mixing mechanism 3 connected to the first power head 11 requires pressurization to penetrate the ground; while the tunneling mechanism 4 connected to the second power head 12 requires pressurization to break through the hard ground layer 6. The different pressurization requirements of the two mechanisms can be achieved by adjusting the output parameters of the pressurized winch 44, without the need for separate configuration. When the first power head 11 is operating, the wire rope is connected to it; when switching to the second power head 12, the wire rope is disconnected from the first power head 11 and connected to the second power head 12. This simple operation does not affect construction efficiency.

[0040] Specifically, the fixed pulley 45 is fixed to the double guide rail pile frame 42, which only changes the direction of force on the wire rope and does not move with the movement of the first power head 11 and the second power head 12, thus ensuring the stability of power output.

[0041] In this embodiment, the number of fixed pulleys 45 is not limited to a single one; the specific number of fixed pulleys 45 can be determined according to the actual situation. For example, multiple pulleys can be set to distribute the tension of the wire rope, improve the stability of the lifting and lowering of the first power head 11 or the second power head 12, and avoid uneven loading.

[0042] Based on any of the above embodiments, please refer to Figure 1 , Figure 5 The tunneling mechanism 4 also includes a tunneling drill pipe 41 connected to the second power head 12.

[0043] The drilling rod 41 is specifically connected to the second power head 12 and is used for rock breaking and clearing obstacles in hard strata 6 and slag-deposited strata.

[0044] During the drilling and pile planting in the middle section, that is, when the upper body rotates to drive the second power head 12 to the working position, the middle section drill rod 41 is in place and penetrates the hard stratum 6 or mixes the sediment slag 7, etc.

[0045] Specifically, when using the central excavation mechanism 4 to perform central excavation pilot hole, the central excavation drill rod 41 is connected to the second power head 12; if central excavation pilot hole is not required, and the second power head 12 provides auxiliary power for stirring, the combined drill rod can be installed on the second power head 12. Even with the limited stroke of the second power head 12, it can still meet the stirring operation at the target depth.

[0046] Based on any of the above embodiments, please refer to Figure 1 , Figure 4 The stirring mechanism 3 includes a stirring drill rod, which includes a smooth rod section 31, a blade drill rod section 32, and a spiral drill rod section 33 connected in sequence. The two ends of the blade drill rod section 32 are detachably connected to the smooth rod section 31 and the spiral drill rod section 33, respectively.

[0047] The bare rod section 31 is connected to the first power head 11 to provide power for the rotation of the mixing drill rod, so that the mixing drill rod can rotate to perform mixing operations to form a mixing hole.

[0048] The blade drill rod section 32 can be disassembled and assembled as needed. When disassembling the blade drill rod section 32, simply connect the polished rod section 31 and the auger drill rod section 33. Specifically, "as needed" refers to the required mixing depth; different depths correspond to different assembly forms of the mixing drill rod. The bottom of the mixing drill rod, i.e., the bottom of the auger drill rod section 33, is connected to a mixing drill bit, used to drill through the formation so that the mixing drill rod can perform mixing operations.

[0049] Specifically, the bare rod section 31 includes a rod cylinder 332, a guide tube, a support plate 333, an external hexagonal connector 35, and an internal hexagonal connector 34. The external hexagonal connector 35 and the internal hexagonal connector 34 are respectively fixed to both ends of the rod cylinder 332. The support plate 333 is a hexagonal plate with a hole in the middle. The support plate 333 is fixed to the rod cylinder 332 at equal intervals. The guide tube passes through the round hole on the support plate 333 and is fixed to the rod cylinder 332. The two ends of the guide tube are connected to the round holes on the external hexagonal connector 35 and the internal hexagonal connector 34, respectively.

[0050] Specifically, the structures of the spiral drill rod section 33 and the blade drill rod section 32 are the same as those of the polished rod section 31. The difference is that the spiral drill rod section 33 has spiral blades on the outside of the rod cylinder 332, while the blade drill rod section 32 has detachable blades on the outside of the rod cylinder 332.

[0051] When connecting the auger drill rod section 33 and the blade drill rod section 32, the external hexagonal connector 35 of the auger drill rod section 33 and the internal hexagonal connector 34 of the blade drill rod section 32 are connected. After connection, they can be axially fixed using locking devices such as pins. After the auger drill rod section 33 and the blade drill rod section 32 are connected, their guide pipes can be connected to transport the concrete for grouting, achieving the effect of mixing and grouting simultaneously.

[0052] Based on any of the above embodiments, please refer to Figure 1 The pile driving mechanism 5 includes a pile driving platform. The lower body is connected to the pile driving platform through a hydraulic cylinder. The hydraulic cylinder can drive the pile driving platform to move so that the central pile is aligned with the mixing hole or the pilot hole channel.

[0053] During actual operation, due to the difference in position between the first power head 11 (mixing) and the second power head 12 (digging), alignment adjustments are required. Specifically, the operation of the pile driving platform requires precise alignment of the center pile and the borehole position. The center pile is the center of the pile driving, while the specific borehole position refers to the mixing hole formed by the mixing mechanism 3 or the pilot hole channel when the digging mechanism 4 participates in the operation. Therefore, the pile driving platform can be directly driven to move horizontally for alignment adjustment via a hydraulic cylinder, completing the alignment without moving the entire machine, thus improving construction efficiency.

[0054] The specific hydraulic cylinder is used for alignment and adjustment, while the pile-driving platform's own pile-driving cylinder 53 provides the power for pile driving. In actual application, the crane first lifts the precast pile 8 into the pile clamping box 51, which clamps the precast pile 8. The pile-driving platform's pile-driving cylinder 53 then starts pressurizing, continuously pressurizing until the precast pile 8 reaches the design depth, thus completing the pile driving operation. If a hard stratum 6 or slag deposit is encountered, the second power head 12 drives the central excavation mechanism 4 to guide the drilling before proceeding with the pile driving operation.

[0055] Based on any of the above embodiments, please refer to Figure 1 The pile driving platform includes a pile clamping box 51 for clamping the precast pile 8 and a pile driving cylinder 53. The pile driving cylinder 53 is located on the upper side of the pile clamping box 51 and is used to provide downward pressure to drive the precast pile 8 to sink.

[0056] By placing the pile-driving cylinder 53 on the upper side of the pile clamping box 51, the structure of the pile-driving cylinder 53 pressurizing from top to bottom can achieve a compact structure and direct and effective power transmission. It is compatible with the equipment layout of the integrated mixing-excavation-pile planting of this application, avoids interference with components such as the first power head 11, the second power head 12 and the double guide rail pile frame 42, and ensures the reliability of integrated collaborative operation.

[0057] Specifically, the precast pile 8 can be pressed downward by the pile driving cylinder 53, so as to directly and efficiently drive the pile to overcome the ground resistance, avoid the situation that there is still soil residue after the intermediate excavation, avoid the situation of the precast pile 8 being eccentrically loaded, and ensure the verticality of the precast pile 8 being implanted.

[0058] In this embodiment, the inverted pile driving platform eliminates the need to occupy the bottom space of the pile driving platform, avoids interference with components such as the first power head 11 and the second power head 12, and ensures the verticality of the pile driving. It is suitable for the integrated design layout of mixing pile driving and central excavation pilot hole.

[0059] Based on any of the above embodiments, the working position includes the center pile position and the side pile position. The movement of the hydraulic cylinder and the rotation of the upper body are used to cooperate in moving the pile driving platform to the center pile position or the side pile position.

[0060] The central pile is the core pile in the area to be constructed, while the side piles are auxiliary piles arranged to the side of the central pile. The bearing function of the side piles and the central pile is the same.

[0061] In this application, the central excavation device is used to excavate pilot holes for the central pile position and the side pile position. Specifically, by rotating the upper body, the pile driving platform can be moved to the central pile position or the side pile position through fine adjustment by the hydraulic cylinder. The continuous construction of the central pile position and the side pile position can be met by only rotating the upper body and moving the hydraulic cylinder, without the need for frequent relocation of the whole machine, thus improving construction efficiency.

[0062] By using hydraulic cylinders and rotating upper body, it is possible to successfully install piles at both the side pile and center pile positions through the central excavation borehole, ensuring the uniformity and stability of the entire foundation's bearing capacity.

[0063] With the double-guide rail pile frame 42 providing reliable and stable guidance for the first power head 11 and the second power head 12, the first power head 11 or the second power head 12 can be driven up and down along the double-guide rail pile frame 42 by the pressure winch 44, regardless of whether it is aligned with the center pile position or the side pile position, to ensure the depth and verticality of the central excavation pilot hole.

[0064] The mixing drill rod of the mixing mechanism 3 and the middle excavation drill rod 41 of the middle excavation mechanism 4 can both support multi-section splicing. Therefore, they can be adapted to the different depth requirements that may exist at the side pile position and the middle pile position, and the construction of different side pile positions can be completed without changing the core equipment.

[0065] Taking one specific implementation as an example, after the mixing and planting equipment and the central excavation and pilot hole equipment are in place, the mixing and grouting at the central pile position is first completed by the first power head 11 and the mixing mechanism 3. When encountering a hard stratum 6, the second power head 12 is switched to break the rock. After breaking the rock, the mixing mechanism 3 mixes the rock to the target depth before planting the pile. If the situation of deposited slag 7 is encountered, the central excavation mechanism 4 and the precast pile 8 are combined before planting the pile.

[0066] After the central pile is installed, there is no need to move the entire machine. Simply rotate the upper body to turn the central excavation mechanism 4 and the mixing mechanism 3 to the side pile position. Then, the position of the pile driving platform is finely adjusted by the hydraulic cylinder to align the central pile with the hole position of the side pile. Repeat the mixing and pile installation operations until all side pile positions in the same construction unit are completed. Similarly, when constructing side pile positions, if hard strata 6, sandy strata 2, or slag deposits are encountered, the central excavation mechanism 4 can be used to create a pilot hole to form a through channel or pilot hole channel. Details will not be elaborated here.

[0067] In addition to the aforementioned mixing pile planting and mid-drilling pilot hole equipment, this invention also provides a method of using the mixing pile planting and mid-drilling pilot hole equipment disclosed in the above embodiments. Please refer to [link / reference needed]. Figure 8 The usage method includes: The first power head 11, which is in the working position, drives the mixing mechanism 3 to perform mixing and grouting operations. Determine whether it is necessary to introduce the intermediate excavator mechanism 4 based on the operating status of the mixing mechanism 3; If so, control the mixing mechanism 3 to rotate onto the vehicle and control the upper body to rotate, so that the second power head 12 drives the middle excavator 4 to the working position; control the middle excavator 4 to operate so that it can penetrate the hard stratum 6 or mix the sediment slag 7. After the tunnel boring machine 4 penetrates the hard stratum 6, the tunnel boring machine 4 is controlled to rotate onto the upper vehicle, and the upper body is controlled to rotate so that the mixing mechanism 3 reaches the working position. The mixing mechanism 3 is controlled to continue mixing and grouting operations until the preset depth is reached. When the preset depth is reached, the mixing mechanism 3 is controlled to rotate onto the upper vehicle, and the upper body is controlled to rotate so that the tunnel boring machine 4 reaches the working position. The tunnel boring machine 4 is controlled to mix and deposit the slag, and the pile planting mechanism 5 is controlled to perform pile planting operations.

[0068] Otherwise, continue the grouting operation until the preset depth is reached, and control the operation of the pile planting mechanism 5 to implant the precast pile 8.

[0069] In this embodiment, please refer to Figure 7 If the central excavation mechanism 4 is not required for introduction, then mixing and planting can be performed. The specific process is as follows: the equipment is positioned; the first power head 11 drives the mixing mechanism 3 to operate, the mixing drill rod and mixing drill bit of the mixing mechanism 3 are positioned, and the grouting is mixed until the target depth is reached; the mixing mechanism 3 rotates onto the upper vehicle, moves the pile pressing platform of the planting mechanism 5, and the central pile is aligned with the mixing hole formed after the mixing mechanism 3 reaches the target depth; the crane lifts the precast pile 8 into the pile clamping box 51; the pile is pressed to the standard depth by the pile pressing cylinder 53; the planting is completed, and the equipment is moved.

[0070] In this embodiment, if the tunneling mechanism 4 is required to perform tunneling to stir the deposited slag 7, the specific process is as follows: the equipment is positioned; the pile driving platform is moved to align the pile driving center; the upper body is rotated to bring the second power head 12 to the working position, and the tunneling mechanism 4 is rotated by the second power head 12 to stir the deposited slag 7 and provide a pilot hole channel to guide the precast pile 8 through, so that the structure formed by the precast pile 8 and the tunneling drill rod 41 of the tunneling mechanism 4 is implanted in the form of tunneling. The tunneling drill rod 41 stirs the deposited slag and reaches the bottom of the hole with the precast pile 8.

[0071] In this embodiment, if the tunneling mechanism 4 is required to perform tunneling and pre-drilling to penetrate the hard stratum 6, the specific process is as follows: when the mixing mechanism 3 reaches the corresponding depth of the hard stratum 6, the mixing mechanism 3 rotates onto the upper vehicle, and the upper body rotates until the second power head 12 rotates to the working position. The tunneling mechanism 4 connected to the second power head 12 then operates to break through the hard stratum 6. After breaking through, the tunneling mechanism 4 rotates onto the upper vehicle, and the mixing mechanism 3 continues to mix and grout to the target depth.

[0072] Based on the above embodiments, the conditions for introducing the tunneling mechanism 4 include: Based on the comparison between the travel depth of the mixing mechanism 3 and the geological data of the site to be constructed, and combined with the travel speed of the mixing mechanism 3, the geological structure is determined. If the geological structure is hard rock, iron plate sand, or sandy stratum 2, then it is determined that the tunneling mechanism 4 needs to be introduced.

[0073] Specifically, when the geological structure consists of hard rock layers or hard sandy strata 6, the excavator 4 needs to break through the rock layers to form a through channel for the mixing mechanism 3 to pass through. This allows the mixing mechanism 3 to continue mixing after passing through the hard strata 6 until the target depth is reached and mixing is stopped, followed by pile planting. If the mixing mechanism 3 reaches the sandy strata after passing through the hard strata 6, pile planting will generate sediment 7. The excavator 4 needs to mix the sediment 7 to form a pilot hole channel, allowing the precast pile 8 to reach the bottom of the mixing hole with the mixing of the excavator 4, and then the precast pile 8 can be implanted. After implantation, the excavator 4 can rotate and be loaded onto the vehicle.

[0074] Specifically, by analyzing the geological data of the construction site, the exact depth of the hard rock layer, slab sand, or sandy layer 2 can be determined. This, combined with the travel depth of the mixing mechanism 3, determines whether the site has reached the stage where the tunnel boring machine 4 needs to be introduced for operations. Furthermore, by combining the travel speed of the mixing mechanism 3, the type of layer (hard rock, slab sand, or sandy layer 2) can be accurately determined. For example, when moving from a soft layer to a hard rock layer or slab sand layer, the mixing speed will significantly slow down. By comparing this with the travel depth and geological data, an accurate determination can be made, ensuring the reliability and effectiveness of the tunnel boring machine 4's introduction operation.

[0075] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0076] The above provides a detailed description of the mixing pile planting and mid-drilling pilot hole equipment and its usage method provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A mixing pile planting and intermediate excavation borehole device, characterized in that, include: Lower fuselage; The upper body is rotatably connected to the lower body; The power assembly (1) includes a first power head (11) and a second power head (12). The first power head (11) and the second power head (12) are located on both sides of the upper body. The rotation of the upper body can drive the first power head (11) or the second power head (12) to move to the working position. A mixing mechanism (3) is connected to the first power head (11). The mixing mechanism (3) is used for stratum mixing and grouting operations. The pile planting mechanism (5) is used to move the precast pile (8) into the mixing hole formed by the mixing mechanism (3); The tunneling mechanism (4) is connected to the second power head (12). The tunneling mechanism (4) is used to penetrate the hard stratum (6) to form a through channel through which the mixing mechanism (3) can pass, or the tunneling mechanism (4) is used to pass through the sandy stratum (2) and mix the deposited slag (7) to provide a guide channel for the precast pile (8) to pass through.

2. The mixing pile planting and intermediate excavation equipment according to claim 1, characterized in that, The tunneling mechanism (4) includes an upper platform (43) and a double guide rail pile frame (42). The upper platform (43) is located on the upper body, and the double guide rail pile frame (42) is installed on the upper platform (43). The first power head (11) and the second power head (12) are respectively slidably connected to the two sides of the double guide rail pile frame (42).

3. The mixing pile planting and intermediate excavation borehole equipment according to claim 2, characterized in that, The double-rail pile frame (42) is equipped with a fixed pulley (45) and a pressure winch (44). The pressure winch (44) is connected to the first power head (11) or the second power head (12) by a steel wire rope, and the steel wire rope is threaded through the fixed pulley (45).

4. The mixing pile planting and intermediate excavation borehole equipment according to claim 3, characterized in that, The tunneling mechanism (4) also includes a tunneling drill rod (41) connected to the second power head (12).

5. The mixing pile planting and intermediate excavation borehole equipment according to claim 1, characterized in that, The stirring mechanism (3) includes a stirring drill rod, which includes a smooth rod section (31), a blade drill rod section (32), and a spiral drill rod section (33) connected in sequence. The two ends of the blade drill rod section (32) are detachably connected to the smooth rod section (31) and the spiral drill rod section (33), respectively. The smooth rod section (31) is connected to the first power head (11).

6. The mixing pile planting and intermediate excavation borehole equipment according to claim 1, characterized in that, The pile planting mechanism (5) includes a pile driving platform. The lower body is connected to the pile driving platform through a hydraulic cylinder. The hydraulic cylinder can drive the pile driving platform to move so that the central pile is aligned with the mixing hole or the pilot hole channel.

7. The mixing pile planting and intermediate excavation borehole equipment according to claim 6, characterized in that, The pile driving platform includes a pile clamping box (51) for clamping the precast pile (8) and a pile driving cylinder (53). The pile driving cylinder (53) is located on the upper side of the pile clamping box (51) and is used to provide downward pressure to drive the precast pile (8) to sink.

8. The mixing pile planting and intermediate excavation borehole equipment according to claim 7, characterized in that, The working positions include the center pile position and the side pile position. The movement of the hydraulic cylinder and the rotation of the upper body are used to move the pile driving platform to the center pile position or the side pile position.

9. A method for using a mixing pile planting and mid-drilling pilot hole equipment, characterized in that, The method of using the mixing pile planting and drilling equipment according to any one of claims 1 to 8 includes: The first power head (11) in the working position is controlled to drive the mixing mechanism (3) to perform mixing and grouting operations; Determine whether the middle excavation mechanism (4) needs to be introduced based on the operating status of the mixing mechanism (3). If so, control the stirring mechanism (3) to rotate onto the vehicle and control the upper body to rotate, so that the second power head (12) drives the middle excavator (4) to the working position; control the middle excavator (4) to operate so as to penetrate the hard stratum (6). After the tunneling mechanism (4) penetrates the hard stratum (6), the tunneling mechanism (4) is controlled to rotate onto the upper vehicle, and the upper body is controlled to rotate so that the mixing mechanism (3) reaches the working position. The mixing mechanism (3) is controlled to continue mixing and grouting until the preset depth is reached. When the preset depth is reached, the mixing mechanism (3) is controlled to rotate onto the upper vehicle, and the upper body is controlled to rotate so that the tunneling mechanism (4) reaches the working position. The tunneling mechanism (4) is controlled to mix and deposit slag, and the pile planting mechanism (5) is controlled to operate to implant the precast pile (8). Otherwise, continue the grouting operation until the preset depth is reached, and control the pile planting mechanism (5) to plant the precast pile (8).

10. The method of use according to claim 9, characterized in that, The conditions requiring the introduction of the tunneling mechanism (4) include: Based on the comparison between the travel depth of the mixing mechanism (3) and the geological data of the site to be constructed, and combined with the travel speed of the mixing mechanism (3), the geological structure is determined. If the geological structure is hard rock, iron plate sand, or sandy strata (2), then it is determined that the tunneling mechanism (4) needs to be introduced.

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