A pile driving device for a precast pile wall and a composite pile driver

Abstract

The present invention discloses a pile driving device for a precast pile wall and a composite pile driver. Among them, the pile driving device includes a pile driving assembly for sinking precast piles to form a precast pile wall, and a column for supporting the pile driving assembly. The pile driving assembly includes a first pile driving mechanism for clamping a first precast pile, and a second pile driving mechanism for clamping the first precast pile and / or a second precast pile. The first pile driving mechanism includes a first clamping unit for clamping the side wall of the first precast pile body, and the first clamping unit forms a first clamping space for clamping the first precast pile. The second pile driving mechanism includes a second clamping unit for clamping the side wall of the first precast pile and / or the second precast pile, and the second clamping unit forms a second clamping space for clamping the first precast pile and / or the second precast pile, and the second clamping space is aligned with the first clamping space in the precast pile sinking direction. The present invention has the advantages of good construction quality.

Description

Technical Field

[0001] The invention relates to the technical field of construction, and in particular to pile driving equipment for prefabricated pile walls and a composite pile driver. Background Art

[0002] "Two walls in one" means that during the foundation pit construction phase, the underground prefabricated pile wall is used as a retaining structure to retain soil and stop water; during the permanent use of the structure, it is used as the outer wall of the main basement structure, and by setting an effective connection with the horizontal beam and slab components inside the main underground structure, no additional outer wall of the underground structure is required. As a retaining structure that integrates retaining soil, stopping water, anti-seepage and the outer wall of the basement structure, the two-wall-in-one has very significant technical and economic effects and has been applied in a large number of deep foundation projects at home and abroad. Therefore, the two-wall-in-one is a foundation treatment method worthy of promotion.

[0003] However, there are many problems in the current construction process of two walls in one. The two walls in one are usually formed by splicing the retaining piles together. The retaining piles are usually large in size and weight. Due to the limitations of production conditions and transportation requirements, the length of the retaining piles usually ranges from a few meters to more than ten meters. However, the length required for foundation treatment is usually tens of meters, which exceeds the length of a single retaining pile. Therefore, pile connection construction is usually required, but pile connection construction requires additional equipment, increases construction costs, and is inconvenient for construction. In addition, in order to ensure that the retaining piles can sink normally, the soil for retaining pile construction usually needs to be pre-treated before construction. After pre-treatment, the soil becomes a pile sinking groove with a width and depth greater than the size of the retaining piles, and the pile sinking groove is filled with concrete slurry. During the retaining pile planting process, after the lower section pile enters the pile sinking groove, it is easy to deviate or twist because its width and depth are greater than the size of the retaining pile, which makes it difficult for the upper section pile to dock with the lower section pile, thereby affecting the construction quality. Summary of the invention

[0004] The purpose of the invention is to solve the problem of poor construction quality in the existing two-wall-in-one construction process.

[0005] To achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] A pile sinking device for a prefabricated pile wall comprises a pile sinking assembly for sinking prefabricated piles to form a prefabricated pile wall, and a column supporting the pile sinking assembly, wherein the pile sinking assembly comprises a first pile sinking mechanism for holding a first prefabricated pile, and a second pile sinking mechanism for holding the first prefabricated pile and / or a second prefabricated pile;

[0007] The first pile driving mechanism comprises a first clamping unit which clamps the side wall of the first precast pile, and the first clamping unit forms a first clamping space which clamps the first precast pile;

[0008] The second pile driving mechanism includes a second clamping unit that clamps the side wall of the first precast pile and / or the second precast pile. The second clamping unit forms a second clamping space for clamping the first precast pile and / or the second precast pile, and the second clamping space is aligned with the first clamping space in the direction of precast pile sinking.

[0009] Furthermore, in the above pile driving equipment for the precast pile wall, the following features are also included: Horizontally, the second pile driving mechanism includes at least two groups of second clamping units. Different second clamping units form second clamping spaces for clamping different first precast piles and / or second precast piles, and the second clamping spaces formed by adjacent second clamping units are connected; When the first precast pile is docked with the second precast pile, the second clamping unit is in a clamped state, and at least during the sinking process of the first precast pile, the first clamping unit is in a clamped state;

[0010] Alternatively, the second pile driving mechanism is fixed to the lower part of the side wall of the column;

[0011] Alternatively, the first pile driving mechanism and / or the second pile driving mechanism are slidably connected to the side wall of the column;

[0012] And / or, horizontally, the first pile driving mechanism includes at least two groups of first clamping units, and different first clamping units form first clamping spaces for clamping the same first precast pile.

[0013] Furthermore, in the above pile driving equipment for the precast pile wall, the following features are also included: The first pile driving mechanism includes a mounting plate and a limiting arm rotatably connected to the mounting plate, and the mounting plate is slidably connected to the side wall of the column.

[0014] Furthermore, in the above pile driving equipment for the precast pile wall, the following features are also included: A buckle structure is provided on the side of the limiting arm away from the mounting plate. The buckle structure, the limiting arm, and the mounting plate form a first clamping space that is at least partially enclosed in the circumferential direction of the precast pile;

[0015] And / or, an adjusting structure is provided between the mounting plate and the side wall of the column, which can be used to adjust the horizontal and / or vertical position of the first clamping unit

[0016] Furthermore, in the above pile driving equipment for the precast pile wall, the following features are also included: The pile driving assembly includes at least two groups of first pile driving mechanisms arranged at intervals in the direction of precast pile sinking, and / or the first pile driving mechanism includes at least two groups of first clamping units arranged at intervals in the direction of precast pile sinking;

[0017] The first clamping spaces formed by the first clamping units are aligned in the direction of precast pile sinking, and the distance between adjacent first pile driving mechanisms is adjustable;

[0018] Alternatively, the distance between adjacent first pile driving mechanisms is fixed.

[0019] Further, the pile driving equipment for the precast pile wall described above further has the following features: The first clamping unit and / or the second clamping unit includes at least one adjustable clamping element, and a driving element is provided above or below the clamping element; The driving element includes a linear transmission unit and an adjustment unit, and the moving direction of the execution part of the linear transmission unit is perpendicular to the side wall of the pile body of the precast pile; The adjustment unit connects the linear transmission unit and the adjustable clamping element.

[0020] Further, the pile driving equipment for the precast pile wall described above further has the following features: The adjustment unit includes a first wedge block and a second wedge block that are slidably fitted through an inclined plane. The first wedge block is connected to the execution part of the linear transmission unit, and the second wedge block is connected to the adjustable clamping element.

[0021] Further, the pile driving equipment for the precast pile wall described above further has the following features: The sliding contact surfaces of the first wedge block and the second wedge block are inclined planes. In the direction from the top to the bottom of the column, the shortest distance between the central axis of the first clamping space and / or the second clamping space and the inclined line of the inclined plane gradually increases.

[0022] Further, the pile driving equipment for the precast pile wall described above further has the following features: The pile driving equipment further includes an equipment platform. The column is fixed on the equipment platform. A traveling mechanism is provided below the equipment platform. The traveling mechanism includes crawlers and / or traveling wheels. The traveling mechanism can drive the pile driving equipment to move along the arrangement direction of the precast pile wall;

[0023] and / or, the pile driving equipment further includes a hoisting mechanism. The pulley block of the hoisting mechanism is arranged at the top of the column. The rope passes through the pulley block and is connected to the first pile driving mechanism, and can drive the first pile driving mechanism to reciprocate in the direction of precast pile sinking;

[0024] and / or, the pile driving assembly further includes a pile gripper that can reciprocate in the direction of precast pile sinking. The pile gripper includes a clamping hole adapted to the shape of the precast pile, and the pile gripper is relatively close to the top of the column relative to the first pile driving mechanism;

[0025] and / or, the pile driving equipment further includes a support assembly. The support assembly includes a diagonal tie rod and / or a cage connected to the column;

[0026] and / or, it further includes an anti-collision pad provided on the side of the second pile driving mechanism facing the first pile driving mechanism and / or the side of the first pile driving mechanism facing the second pile driving mechanism. The anti-collision pad includes at least one of rubber, sponge, and silica gel.

[0027] The present invention also proposes the following technical solutions:

[0028] A composite pile driver includes any one of the above-mentioned pile driving equipment for precast pile walls, and further includes a column and a milling groove assembly slidably connected to the column. The milling groove assembly can reciprocate in the direction of precast pile sinking.

[0029] The pile sinking equipment for precast pile walls provided by the present invention has the following advantages: The pile sinking assembly includes a first pile sinking mechanism for clamping the first precast pile, and a second pile sinking mechanism for clamping the first precast pile and / or the second precast pile; Therefore, the first pile sinking mechanism and the second pile sinking mechanism can alternately clamp the first precast pile to complete the sinking construction of the first precast pile, improving the pile sinking efficiency; The first clamping space of the first pile sinking mechanism and the second clamping space of the second pile sinking mechanism are aligned in the sinking direction of the precast pile. In addition, the docking quality between the first precast pile and the second precast pile can be improved, thereby improving the construction quality. And when the first precast pile and the second precast pile are docked, the second clamping unit is in a clamped state, indicating that the second clamping unit clamps the second precast pile, and the second precast pile is in a fixed state and will not shift or twist.

[0030] In addition, in the transverse direction, the second pile sinking mechanism includes at least two groups of second clamping units. Different second clamping units form second clamping spaces for clamping different first precast piles and / or second precast piles, and the second clamping spaces formed by adjacent second clamping units are connected. That is, different second clamping units can clamp two precast piles spliced horizontally in the precast pile wall, so as to ensure that the included angle between the precast piles forming the precast pile wall is a predetermined included angle, thereby improving the splicing quality of the precast piles in the transverse direction and ensuring that the formed precast pile wall is straight.

[0031] In addition, in the transverse direction, the first pile sinking mechanism includes at least two groups of first clamping units. Different first clamping units form first clamping spaces for clamping the same first precast pile, which can improve the clamping stability of the first pile sinking mechanism for the first precast pile, thereby ensuring that the angle between the precast pile and the soil during sinking is a predetermined angle, thereby improving the construction quality.

[0032] The composite pile driver provided by the present invention, because it includes the above-mentioned pile sinking equipment for precast pile walls, has the technical effects of the above-mentioned pile sinking equipment for precast pile walls, and is provided with a milling groove assembly slidably connected to the column. The milling groove assembly can reciprocate along the sinking direction of the precast pile; The movement of the milling groove assembly in this way can cut the soil sufficiently and can realize the milling groove process before the precast pile sinks. Therefore, through the composite pile driver, two processes of milling groove and pile sinking can be realized, rather than being constructed by two different construction machines respectively, avoiding the ineffective time increased by switching back and forth between different construction machines and improving the construction efficiency. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic diagram of a pile driving device;

[0035] Figure 2 It is a schematic diagram of another pile driving device;

[0036] Figure 3 It is a schematic diagram of yet another pile driving device;

[0037] Figure 4 It is a schematic diagram of another pile driving device;

[0038] Figure 5 It is a schematic diagram of the first pile driving mechanism;

[0039] Figure 6 It is a schematic diagram of the first pile driving mechanism in another state;

[0040] Figure 7 It is a schematic diagram of another first pile driving mechanism;

[0041] Figure 8 It is Figure 7 A schematic diagram from another angle;

[0042] Figure 9 It is a schematic diagram of the structure of another first clamping unit;

[0043] Figure 10 It is Figure 9 A schematic diagram from another angle;

[0044] Figure 11 It is a schematic diagram of yet another pile driving device;

[0045] Figure 12 It is a schematic diagram of the adjusting structure;

[0046] Figure 13 It is a schematic diagram of another adjusting structure;

[0047] Figure 14 It is a schematic diagram during the construction of yet another pile driving device;

[0048] Figure 15 It is a schematic diagram of a composite pile driver;

[0049] Figure 16 It is a schematic diagram of another second pile driving mechanism;

[0050] Figure 17 It is a schematic diagram of yet another second pile driving mechanism.

[0051] In the attached drawings:

[0052] 01, Column; 02, Prefabricated pile;

[0053] 1. First pile sinking mechanism; 11. First clamping unit; 12. First clamping space; 13. Mounting plate; 14. Limiting arm; 15. Buckle structure; 151. Clamping block; 152. Fixing groove; 16. Adjustment structure; 161. Traveling unit; 1611. Traveling trolley; 162. Rotary support; 1621. Rotary part 1; 1622. Rotary part 2; 163. Telescopic unit;

[0054] 2. Second pile sinking mechanism; 21. Second clamping unit; 22. Second clamping space; 23. Roller;

[0055] 3. Clamping element; 31. Clamping plate; 311. Friction plate;

[0056] 4. Driving element; 41. Linear transmission unit; 411. Actuator;

[0057] 42, regulating unit; 421, wedge one; 422, wedge two;

[0058] 51. Equipment platform; 52. Traveling mechanism; 53. Hoisting mechanism; 54. Pile clamp; 55. Support assembly; 56. Anti-collision pad; 57. Connecting rod; 58. Telescopic rod; 59. Pulley seat;

[0059] 6. Milling groove assembly. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0061] For the convenience of explanation and illustration, at the same construction site, two piles are butted up and down along the sinking direction of the precast pile 02 , the upper section of the pile is the first precast pile 02 , and the lower section of the pile is the second precast pile 02 .

[0062] <Example 1>

[0063] See also Figures 1 to 4, a pile driving device for a precast pile wall provided in this embodiment includes a pile driving assembly for driving a precast pile 02 to form a precast pile wall, and a column 01 supporting the pile driving assembly. The pile driving assembly includes a first pile driving mechanism 1 for clamping the first precast pile 02. The first pile driving mechanism 1 includes a first clamping unit 11 for clamping the side wall of the first precast pile 02, and the first clamping unit 11 forms a first clamping space 12 for clamping the first precast pile 02. The pile driving assembly further includes a second pile driving mechanism 2 for clamping the first precast pile 02 and / or the second precast pile 02. The second pile driving mechanism 2 includes a second clamping unit 21 for clamping the side wall of the first precast pile 02 and / or the second precast pile 02, and the second clamping unit 21 forms a second clamping space 22 for clamping the first precast pile 02 and / or the second precast pile 02. The second clamping space 22 is aligned with the first clamping space 12 in the sinking direction of the precast pile 02, which can ensure that when both the first pile driving mechanism 1 and the second pile driving mechanism 2 clamp the first precast pile 02, the alignment of the first clamping space 12 and the second clamping space 22 helps the precast pile 02 to sink along a predetermined angle. When the first precast pile 02 is docked with the second precast pile 02, the second clamping unit 21 is in a clamped state, and at least the first clamping unit 11 is in a clamped state during the sinking process of the first precast pile 02.

[0064] During the use of the pile driving device, the first pile driving mechanism 1 and the second pile driving mechanism 2 can alternately clamp the first precast pile 02. Specifically, the first pile driving mechanism 1 clamps the side wall of the first precast pile 02 and sinks together with the first precast pile 02. When the first precast pile 02 sinks to a predetermined distance, the second pile driving mechanism 2 clamps the side wall of the first precast pile 02 to fix the first precast pile 02, and then the first pile driving mechanism 1 releases. It moves a predetermined distance in the opposite direction of the sinking direction of the precast pile 02 and then clamps the side wall of the first precast pile 02 again. At this time, the second pile driving mechanism 2 releases, and the first pile driving mechanism 1 and the first precast pile 02 continue to sink in the above manner. By repeating this several times, the sinking construction of the first precast pile 02 is realized. Through the sinking construction with high frequency and short stroke, the stability of the pile sinking can be improved.

[0065] During the use of the pile driving device, the first pile driving mechanism 1 can also clamp the first precast pile 02, and the second pile driving mechanism 2 clamps the second precast pile 02 already in the soil. Since the first clamping space 12 of the first pile driving mechanism 1 and the second clamping space 22 of the second pile driving mechanism 2 are aligned in the sinking direction of the precast pile 02, the accuracy during the docking of the first precast pile 02 and the second precast pile 02 can be ensured, and the docking quality during the docking of the first precast pile 02 and the second precast pile 02 can be improved.

[0066] The pile driving assembly in the pile driving equipment provided in this embodiment includes a first pile driving mechanism 1 that holds the first precast pile 02 tightly, and a second pile driving mechanism 2 that holds the first precast pile 02 and / or the second precast pile 02 tightly. Therefore, the first pile driving mechanism 1 and the second pile driving mechanism 2 can alternately hold the first precast pile 02 tightly to complete the sinking construction of the first precast pile 02, improving the pile driving efficiency. The first holding space 12 of the first pile driving mechanism 1 and the second holding space 22 of the second pile driving mechanism 2 are aligned in the sinking direction of the precast pile 02, and when the first precast pile 02 is docked with the second precast pile 02, the second holding unit 21 is in a tightened state, indicating that the second holding unit 21 holds the second precast pile 02 tightly, and the second precast pile 02 is in a fixed state and will not shift or twist. Therefore, the docking quality of the first precast pile 02 and the second precast pile 02 can be improved, thereby improving the construction quality.

[0067] <Example Two>

[0068] In this embodiment, the same parts as those in Embodiment 1 are given the same reference numerals and the same text descriptions are omitted.

[0069] During the construction of the precast pile wall, the side walls of adjacent precast piles 02 are connected to form a precast pile wall. The two adjacent pile positions in the arrangement direction of the precast pile wall are respectively called the first working position and the second working position according to the sequence of their pile driving. After all the piles at the first working position are constructed, the piles at the second working position are then constructed. The problem is that due to the pre-treatment of the foundation, the piles at the first working position may continue to sink due to their own weight. At this time, without a guiding and limiting structure to restrain them, they are very likely to deflect or shift, which will increase the difficulty of docking the piles at the second working position with the piles at the first working position, affect the quality of the finally formed precast pile wall, and cause the wall to be uneven. Another possible situation is that the piles at the first working position do not continue to sink due to their own weight, but during the sinking process of the piles at the second working position, since their side walls are connected to the side walls of the piles at the first working position, the piles at the second working position may drive the piles at the first working position to sink together, resulting in the elevation of the piles at the first working position being inconsistent with the original predetermined elevation, and even causing the piles at the first working position to tilt. The technical solution provided in this embodiment can solve this problem.

[0070] Compared with Embodiment 1, the pile driving equipment for a precast pile wall provided in this embodiment also has such a different structural design:

[0071] Please refer to Figure 11 and Figure 14 , in the transverse direction, the second pile driving mechanism 2 includes at least two groups of second holding units 21. Different second holding units 21 form second holding spaces 22 for holding different first precast piles 02 and / or second precast piles 02 tightly, and the second holding spaces 22 formed by adjacent second holding units 21 are connected.

[0072] It can be understood that the second pile sinking mechanism 2 can hold the precast piles 02 at the first station and the second station simultaneously. Alternatively, the second pile sinking mechanism 2 holds the precast pile 02 at the first station, and the first pile sinking mechanism 1 drives the first precast pile 02 at the second station to sink. When the first precast pile 02 at the second station sinks to a position where it can be held by the second pile sinking mechanism 2, since the second pile sinking mechanism 2 includes at least two sets of second holding units 21 in the transverse direction, the second pile sinking mechanism 2 can hold the first precast pile 02 at the second station on the basis of holding the precast pile 02 at the first station; and during this process, since the first holding space 12 and the second holding space 22 formed by the second pile sinking mechanism 2 and the first pile sinking mechanism 1 are aligned in the sinking direction of the precast pile 02, the second pile sinking mechanism 2 can ensure that the axis of the precast pile 02 located in the second holding space 22 is aligned with the axis of the precast pile 02 held by the first pile sinking mechanism 1. Moreover, the pile at the first station is held by the second pile sinking mechanism 2, and the pile at the second station sinks under the limitation of the first pile sinking mechanism 1. It is equivalent that the pile at the first station is fixed and the pile at the second station sinks stably. Then, the splicing accuracy when the side walls of the precast piles 02 at the first station and the second station are spliced with each other can be improved, thereby improving the wall surface quality of the precast pile wall formed by this pile sinking equipment.

[0073] It can be understood that the second pile sinking mechanism 2 has at least one opening in the splicing direction of the precast pile wall for avoiding the precast pile 02 to prevent the second pile sinking mechanism 2 from colliding with the precast pile 02 during its movement. The second pile sinking mechanism proposed in this embodiment is generally an inclined concave shape, and actually it can also be other structures such as an L shape.

[0074] In addition, please refer to Figure 14 , the second pile sinking mechanism 2 can be fixed at the lower part of the side wall of the column 01; in this way, the first pile sinking mechanism 1 and the second pile sinking mechanism 2 can be separated to avoid mutual influence during their operation.

[0075] In addition, please refer to Figure 11 , the second pile sinking mechanism 2 can also be slidably connected to the side wall of the column 01; in this way, the adjustment ability of the second pile sinking mechanism 2 can be improved, which is convenient for adjusting the position of the precast pile 02 and improving the overall adaptability of the pile sinking equipment.

[0076] In addition, please refer to Figure 16 , a plurality of rollers 23 can be arranged on the second pile sinking mechanism 2 to guide and limit the precast pile 02 passing through the second pile sinking mechanism 2.

[0077] Alternatively, please refer to Figure 17 , the second pile sinking mechanism 2 can be set in a telescopic structural form, and both the telescopic part and the fixed part are provided with the second holding units 21 and the rollers 23, which can improve the general performance of the equipment.

[0078] In the pile driving equipment provided in this embodiment, in the transverse direction, the second pile driving mechanism 2 includes at least two groups of second clamping units 21. Different second clamping units 21 form second clamping spaces 22 for clamping different first precast piles 02 and / or second precast piles 02, and the second clamping spaces 22 formed by adjacent second clamping units 21 are communicated. That is, different second clamping units 21 can clamp two precast piles 02 spliced horizontally in the precast pile wall, so as to ensure that the included angle between the precast piles 02 forming the precast pile wall is a predetermined angle, thereby improving the splicing quality of the precast piles 02 in the transverse direction and ensuring that the formed precast pile wall is straight.

[0079] <Embodiment Three>

[0080] In this embodiment, the same parts as those in Embodiments One and Two are given the same reference numerals, and the same textual descriptions are omitted.

[0081] Compared with Embodiments One and Two, the pile driving equipment for a precast pile wall provided in this embodiment also has the following different structural designs:

[0082] Please refer to Figure 1 、 Figure 5 and Figure 6 , in the transverse direction, the first pile driving mechanism 1 includes at least two groups of first clamping units 11. Different first clamping units 11 form first clamping spaces 12 for clamping the same first precast pile 02. Through the two groups of first clamping units 11, the precast pile 02 can be stably clamped, improving the control ability of the first pile driving mechanism 1 over the precast pile 02 and preventing it from falling off or slipping.

[0083] Please continue to refer to Figure 5 and Figure 6 , the first pile driving mechanism 1 includes a mounting plate 13 and a limiting arm 14 rotatably connected to the mounting plate 13. The mounting plate 13 is slidably connected to the side wall of the column 01 through a pulley seat 59. And, a buckle structure 15 may be provided on the side of the limiting arm 14 away from the mounting plate 13. The buckle structure 15 includes a clamping block 151 and a fixing groove 152. Figure 5 and Figure 6 The way shown in Figure 5 is that the clamping block 151 and the fixing groove 152 are respectively arranged on two different limiting arms 14. As shown in

[0084] And, please refer to Figure 5 and Figure 6, a support platform is provided outside the limit arm 14. The driving element 4 in the first clamping unit 11 is arranged on the support platform, and the clamping element 3 is arranged inside the limit arm 14. With this arrangement, the support platform can provide a certain supporting effect on the driving element 4, improving the stability of the equipment. The driving element 4 can be selected as an element with a linear telescopic function such as a hydraulic cylinder. The clamping element 3 includes a clamping plate 31, and the clamping plate 31 can have a large clamping area with the side wall of the pile body, improving the clamping stability of the first clamping unit 11.

[0085] For the pile driving equipment provided in this embodiment, the first clamping unit 11 is arranged on the limit arm 14. Before the first pile driving mechanism 1 clamps the precast pile 02, the limit arm 14 can be in an open state as Figure 6 shown, which is convenient for the precast pile 02 to enter the first clamping space 12. When the precast pile 02 enters the first clamping space 12, the limit arm 14 can be in a closed state as Figure 5 shown, which can limit the precast pile 02. At the same time, when the first clamping unit 11 loosens or slips, the precast pile 02 can also be limited within a certain circumferential range by the limit arm 14 and the mounting plate 13, and will not tip over, avoiding the occurrence of safety accidents.

[0086] <Example Four>

[0087] In this embodiment, the parts that are the same as those in Embodiments One to Three are given the same reference numerals and the same textual descriptions are omitted.

[0088] Compared with Embodiments One to Three, the pile driving equipment for a precast pile wall provided in this embodiment also has the following different structural designs:

[0089] Please refer to Figures 11 to 12 , an adjusting structure 16 is provided between the mounting plate 13 of the first pile driving mechanism 1 and the side wall of the column 01. The adjusting structure 16 is slidably connected to the column 01. The adjusting structure 16 includes a traveling unit 161 and a slewing bearing 162. The traveling unit 161 includes two sets of traveling trolleys 1611 arranged vertically and can slide in two mutually perpendicular directions within its plane. The slewing bearing 162 is connected to the traveling unit 161. The slewing bearing 162 includes a first slewing part 1621 and a second slewing part 1622. The first slewing part 1621 is connected to the traveling unit 161, and the second slewing part 1622 is connected to the mounting plate 13 of the part of the first pile driving mechanism 1 that is rotatably connected to the limit arm 14. The second slewing part 1622 can rotate along the axis of the first slewing part 1621.

[0090] For the convenience of understanding, in Figure 11A three-dimensional coordinate system is marked. In the walking unit 161, two sets of moving trolleys move along the Y-axis and Z-axis directions respectively. The axis of the first slewing part 1621 is the X-axis, that is, the second slewing part 1622 rotates along the X-axis. That is, the first pile driving mechanism 1 can reciprocate in the Y-axis and Z-axis directions through the adjustment of the walking unit 161, and can also rotate along the X-axis through the adjustment of the slewing bearing 162.

[0091] In addition, please refer to Figure 13 and in combination with Figure 11 and Figure 12 At the right end of the first slewing part 1621 of the slewing bearing 162, a telescopic unit 163 can be connected. Specifically, the telescopic unit 163 can adopt the form of a telescopic cylinder or a hydraulic cylinder, etc. The telescopic unit 163 can reciprocate along the X-axis direction, so that the first pile driving mechanism 1 can reciprocate along the X-axis direction for adjustment.

[0092] The adjustment structure 16 in the pile driving equipment provided in this embodiment includes a walking unit 161, a slewing bearing 162, and a telescopic unit 163. The walking unit 161 can drive the first pile driving mechanism 1 to move in the Y-axis and Z-axis directions. The slewing bearing 162 can drive the first pile driving mechanism 1 to rotate along the X-axis. The telescopic unit 163 can drive the first pile driving mechanism 1 to move in the X-axis direction. The adjustment structure 16 improves the adjustment ability of the first pile driving mechanism 1, enables it to easily hold the precast pile 02, and is convenient for adjusting the alignment of the axes of the first pile driving mechanism 1 and the second pile driving mechanism 2. It can be understood that corresponding structures can also be provided on the second pile driving mechanism 2 to adjust the axis of the second pile driving mechanism 2.

[0093] <Embodiment Five>

[0094] In this embodiment, for the parts that are the same as those in Embodiments 1 to 4, the same reference numerals are given, and the same text descriptions are omitted.

[0095] Compared with Embodiments 1 to 4, the pile driving equipment for a precast pile wall provided in this embodiment also has the following different structural designs:

[0096] Please refer to Figure 3 , Figure 4 , Figure 7 and Figure 8, the pile driving assembly includes at least two groups of first pile driving mechanisms 1 arranged at intervals along the sinking direction of the precast pile 02. The first clamping units 11 in the first pile driving mechanism 1 form a first clamping space 12, and different first clamping units 11 are aligned in the sinking direction of the precast pile 02. Therefore, different first clamping units 11 can clamp two positions of the precast pile 02 at vertical intervals, improving the clamping stability. It can be understood that at least two groups of first clamping units 11 arranged at intervals along the sinking direction of the precast pile 02 can also be provided in the first pile driving mechanism 1, which can also achieve clamping of two positions of the precast pile 02 at vertical intervals. It can be understood that two groups of first clamping units 11 arranged at horizontal intervals can also be provided in the first pile driving mechanism 2, which can achieve clamping of two positions of the precast pile 02 at horizontal intervals.

[0097] Specifically, please refer to Figure 3 , the two first pile driving mechanisms 1 arranged at intervals are connected by a connecting rod 57, that is, the distance between adjacent first pile driving mechanisms 1 is fixed.

[0098] Please refer to Figure 4 , Figure 7 and Figure 8 , the two first pile driving mechanisms 1 arranged at intervals are connected by a telescopic rod 58, that is, the distance between adjacent first pile driving mechanisms 1 is adjustable.

[0099] During the use of the pile driving equipment provided in this embodiment, first, the two groups of first pile driving mechanisms 1 drive the precast pile 02 to fall a certain distance, and then the second pile driving mechanism 2 clamps the precast pile 02. At this time, the first pile driving mechanism 1 close to one end of the second pile driving mechanism 2 loosens, and then this first pile driving mechanism 1 moves a predetermined distance in the opposite direction of the sinking direction of the precast pile 02 through the telescopic rod 58, and then clamps the precast pile 02 again. Then, the first pile driving mechanism 2 far from one end of the second pile driving mechanism 2 loosens, and this first pile driving mechanism 1 moves a predetermined distance in the opposite direction of the sinking direction of the precast pile 02 through the telescopic rod 58, and then clamps the precast pile 02 again; when both groups of first pile driving mechanisms 1 move upward a predetermined distance and clamp the side wall of the precast pile 02, the second pile driving mechanism 2 loosens, and the two groups of first pile driving mechanisms 1 carry out the sinking construction of the precast pile 02 according to the previous working mode, and this process is repeated several times to realize the sinking construction of the whole precast pile 02.

[0100] The advantage of such a setting is that during the whole construction process, the precast pile 02 is always clamped by the two groups of first pile driving mechanisms 1 or one group of first pile driving mechanisms 1 and one group of second pile driving mechanisms 2, and the precast pile 02 is always in a state of being clamped at two points, which can effectively maintain the clamping stability of the pile driving assembly to the precast pile 02. Moreover, in this way, the total height of the pile driving equipment does not need to be very high, it has good low clearance, and the construction safety is good.

[0101] The pile sinking equipment provided in this embodiment has a pile sinking assembly including at least two groups of first pile sinking mechanisms 1 arranged at intervals along the sinking direction of the precast pile 02. Therefore, it can achieve clamping at multiple positions arranged at intervals in the length direction of the precast pile 02, which is equivalent to the form of multi-point clamping, can effectively improve the clamping stability of the pile sinking assembly for the precast pile 02, and improve the safety during the construction of the pile sinking equipment.

[0102] <Example Six>

[0103] In this embodiment, the parts that are the same as those in Embodiments 1 to 5 are given the same reference numerals and the same textual descriptions are omitted.

[0104] Compared with Embodiments 1 to 5, the pile sinking equipment for a precast pile wall provided in this embodiment also has the following different structural designs:

[0105] Please refer to Figure 9 and Figure 10 and, and assist in referring to Figures 1 to 8 . The first clamping unit 11 includes at least one adjustable clamping element 3, and a driving element 4 is provided above the clamping element 3; of course, the driving element 4 can also be arranged below the clamping element 3. The driving element 4 includes a linear transmission unit 41 and an adjustment unit 42. The moving direction of the execution part 411 of the linear transmission unit 41 is perpendicular to the side wall of the pile body of the precast pile 02, so that the clamping element 3 can be attached to and clamped with the plane of the side wall of the pile body. The adjustment unit 42 connects the linear transmission unit 41 and the adjustable clamping element 3. The linear transmission unit 41 can be selected from hydraulic cylinders, air cylinders or other components with linear telescopic functions.

[0106] Specifically, the adjustment unit 42 includes a first wedge block 421 and a second wedge block 422. One of them is connected to the execution part 411 of the linear transmission unit 41, and the other is connected to the adjustable clamping element 3. In the figure, the first wedge block 421 is connected to the linear transmission unit 41, and the second wedge block 422 is connected to the clamping element 3. The first wedge block 421 and the second wedge block 422 are in sliding fit through inclined surfaces. Further, the sliding contact surfaces of the first wedge block 421 and the second wedge block 422 are inclined surfaces. In the direction from the top to the bottom of the column 01, the shortest distance between the central axis of the first clamping space 12 and the inclined line of the inclined surface gradually increases because the driving element 4 is arranged above the clamping element 3 in this embodiment; if the driving element 4 is arranged below the clamping element 3, then in the direction from the bottom to the top of the column 01, the shortest distance between the central axis of the first clamping space 12 and the inclined line of the inclined surface gradually increases. Further, a mortise and tenon structure or other structures such as matching concave and convex parts can be arranged between the first wedge block 421 and the second wedge block 422 to keep the first wedge block 421 and the second wedge block 422 relatively slidable, but prevent the first wedge block 421 and the second wedge block 422 from disengaging.

[0107] In addition, the clamping element 3 includes a clamping plate 31 and a friction plate 311. The clamping plate 31 is connected to the second wedge block 422, and the friction plate 311 is arranged on the other side of the clamping plate 31. The reason for this setting is that the clamping element 3 may be easily worn when clamping the side wall of the pile body and needs to be frequently replaced. With this setting, only the friction plate 311 needs to be replaced. In addition, if the pile body has irregular structures such as concavities and convexities, the shape of the friction plate 311 can also be set to be consistent with the shape of the pile body to facilitate the clamping of the clamping element 3 to the pile body.

[0108] Of course, the second clamping unit 21 can also be designed according to the first clamping unit 11 in this embodiment, which will not be elaborated here.

[0109] In the pile driving equipment proposed in this embodiment, the driving element 4 is arranged above the clamping element 3, specifically, it can be arranged above the limiting arm 14, which can avoid collision between the limiting arm 14 and other components of the pile driving equipment when the limiting arm 14 is opened or closed. In addition, the clamping element 3 and the driving element 4 are connected by an adjusting unit 42. The sliding contact surfaces of the first wedge block 421 and the second wedge block 422 of the adjusting unit 42 are inclined planes. With this setting, the vertical movement driven by the driving element 4 can be converted into the horizontal movement required by the clamping element 3. At the same time, after the clamping element 3 clamps the precast pile 02, if the precast pile 02 moves under the action of an external force, since the clamping element 3 and the driving element 4 are connected by the adjusting unit 42, the force required to cause the relative sliding between the first wedge block 421 and the second wedge block 422 will definitely be greater than the force in the same direction of the clamping element 3 and the driving element 4, thereby improving the clamping stability of the clamping element 3 for the precast pile 02.

[0110] <Embodiment Seven>

[0111] In this embodiment, the parts that are the same as those in Embodiments One to Six are given the same reference numerals and the same textual descriptions are omitted.

[0112] Compared with Embodiments One to Six, the pile driving equipment for a precast pile wall provided in this embodiment also has the following different structural designs:

[0113] Please refer to Figures 1 to 4 、 Figure 11 、 Figure 14 and Figure 15 , the pile driving equipment includes an equipment platform 51. The column 01 is fixed on the equipment platform 51. A traveling mechanism 52 is provided below the equipment platform 51. The traveling mechanism 52 includes crawlers and / or traveling wheels. The traveling mechanism 52 can drive the pile driving equipment to move along the arrangement direction of the precast pile wall. The advantage of this setting is that it can increase the traveling function of the pile driving equipment, which is more convenient during the construction of the precast pile wall and improves the construction efficiency.

[0114] Please continue to refer to Figures 1 to 4 、Figure 11 , Figure 14 and Figure 15 , the pile driving equipment further includes a hoisting mechanism 53. The pulley block of the hoisting mechanism 53 is arranged at the top of the column 01, and its driving part (not shown in the figure) can be arranged on the equipment platform 51. A rope (not shown in the figure) can pass through the pulley block and be connected to the first pile driving mechanism 1 to drive the first pile driving mechanism 1 to reciprocate in the sinking direction of the precast pile 02. That is, it can be used as the power source when the first pile driving mechanism 1 moves, and can also limit the movement speed of the first pile driving mechanism 1 to ensure the stability of the precast pile 02 during pile driving.

[0115] Please continue to refer to Figures 1 to 4 , Figure 11 , Figure 14 and Figure 15 , the pile driving equipment further includes a pile gripper 54 that can reciprocate in the sinking direction of the precast pile 02. The pile gripper 54 includes a clamping hole adapted to the outer shape of the precast pile 02, and the pile gripper 54 is relatively close to the top of the column 01 with respect to the first pile driving mechanism 1. The reason for such a setting is that on the basis of the original first pile driving mechanism 1 and the second pile driving mechanism 2 tightly holding the side wall of the precast pile 02, adding a gripper that can clamp the end of the precast pile 02 can clamp the precast pile 02 between the times when the precast pile 02 is tightly held by the first pile driving mechanism 1 and / or the second pile driving mechanism 2. Or, the pile gripper 54 is set to be rotatable by a certain angle. Or, the pile gripper 54 is set not to be connected to the column, and the hoisting mechanism 53 can drive the pile gripper to move arbitrarily. When the rope of the hoisting mechanism 53 drops, the pile gripper 54 can be docked with the precast pile 02 stacked at the construction site, and then the precast pile 02 can be brought into the space defined by the first pile driving mechanism, realizing the process of the pile driving equipment directly grasping the precast pile 02 stacked at the construction site.

[0116] Please continue to refer to Figures 1 to 4 , Figure 11 , Figure 14 and Figure 15 , the pile driving equipment further includes a support assembly 55. The support assembly 55 includes a diagonal tie rod and / or a cage connected to the column 01. The diagonal tie rod can adjust the verticality of the column 01, and the cage can improve the stability of the column 01 during construction.

[0117] Please refer to Figure 14 , the pile driving equipment further includes a collision prevention pad 56 arranged on the side of the second pile driving mechanism 2 facing the first pile driving mechanism 1 and / or on the side of the first pile driving mechanism 1 facing the second pile driving mechanism 2. The collision prevention pad 56 includes at least one of rubber, sponge, and silica gel. The advantage of such a setting is that it can prevent the first pile driving mechanism 1 and the second pile driving mechanism 2 from colliding due to improper operation or other reasons during construction, improve the overall safety performance of the equipment, and avoid damage to the first pile driving mechanism 1 and the second pile driving mechanism 2 caused by collision.

[0118] <Embodiment 8>

[0119] In this embodiment, the same parts as those in Embodiments 1 to 7 are given the same figure marks, and the same text descriptions are omitted.

[0120] Compared with Embodiments 1 to 7, this embodiment provides a composite pile driver, including any one of the pile driving equipment for prefabricated pile walls in Embodiments 1 to 7, which also includes a column 01 and a milling groove assembly 6 slidably connected to the column 01, and the milling groove assembly 6 can reciprocate along the sinking direction of the prefabricated pile 02.

[0121] Specifically, the slot milling assembly 6 can slide along the length direction of the column 01 to complete the vertical slot milling; and the slot milling assembly 6 can also reciprocate between the two columns 01, that is, reciprocate along the arrangement direction of the prefabricated pile wall to complete the horizontal slot milling. In addition, the slot milling assembly 6 can also be set to rotate along the length direction of the column 01, so that the rotating slot milling can be achieved.

[0122] The composite pile driver provided in this embodiment includes the above-mentioned pile sinking equipment for prefabricated pile walls, has the technical effect of the above-mentioned pile sinking equipment for prefabricated pile walls, and is provided with a milling groove assembly 6 slidably connected to the column 01, which can reciprocate along the sinking direction of the prefabricated pile 02; the milling groove assembly 6 can fully cut the soil body by such movement, and can realize the milling groove process before the sinking of the prefabricated pile 02. Therefore, the composite pile driver can realize the two processes of milling groove and pile sinking, instead of using two construction machines for construction separately, avoiding the invalid time increased by switching back and forth between different construction machines, and improving the construction efficiency.

[0123] In the above-mentioned embodiments 1 to 8, during the working process, as the working environment changes, at least part of the technical implementation methods of embodiments 1 to 8 can be combined or replaced.

[0124] The technical principle of the present invention is described above in combination with specific embodiments, but it should be noted that the above descriptions are only for explaining the principle of the present invention and cannot be interpreted as a specific limitation on the protection scope of the present invention in any way. Based on the explanation here, technicians in this field can think of other specific embodiments or equivalent replacements of the present invention without paying creative work, which will fall within the protection scope of the present invention.

Claims

1. A pile driving device for a precast pile wall, comprising a pile driving assembly for driving precast piles to form a precast pile wall, and a column for supporting the pile driving assembly, characterized in that: The pile sinking assembly includes a first pile sinking mechanism for clamping the first precast pile, and a second pile sinking mechanism for clamping the first precast pile and / or the second precast pile; The first pile sinking mechanism includes a first clamping unit for clamping the side wall of the first precast pile body, and the first clamping unit forms a first clamping space for clamping the first precast pile; The second pile sinking mechanism includes a second clamping unit for clamping the side wall of the first precast pile and / or the second precast pile body, and the second clamping unit forms a second clamping space for clamping the first precast pile and / or the second precast pile. The second clamping space is aligned with the first clamping space in the direction of precast pile sinking; In the transverse direction, the second pile sinking mechanism includes at least two groups of second clamping units. Different second clamping units form second clamping spaces for clamping different first precast piles and / or second precast piles, and the second clamping spaces formed by adjacent second clamping units are connected. When the first precast pile is docked with the second precast pile, the second clamping unit is in a clamped state, and at least when the first precast pile sinks, the first clamping unit is in a clamped state.

2. The pile driving device for a precast pile wall according to claim 1, characterized in that, The second pile sinking mechanism is fixed to the lower part of the side wall of the column; Alternatively, the first pile sinking mechanism and / or the second pile sinking mechanism are slidably connected to the side wall of the column.

3. The pile driving device for a precast pile wall according to claim 1, characterized in that, In the transverse direction, the first pile sinking mechanism includes at least two groups of first clamping units, and different first clamping units form first clamping spaces for clamping the same first precast pile.

4. The pile driving device for a precast pile wall according to claim 1, characterized in that, The first pile sinking mechanism includes a mounting plate and a limiting arm rotatably connected to the mounting plate, and the mounting plate is slidably connected to the side wall of the column.

5. The pile driving device for a precast pile wall according to claim 4, characterized in that, A clamping structure is provided on the side of the limiting arm away from the mounting plate, and the clamping structure, the limiting arm and the mounting plate form a first clamping space that is at least partially enclosed in the circumferential direction of the precast pile.

6. The pile driving device for a precast pile wall according to claim 4, characterized in that, An adjusting structure is provided between the mounting plate and the side wall of the column, which can be used to adjust the transverse and / or longitudinal positions of the first clamping unit.

7. The pile driving device for a precast pile wall according to claim 1, characterized in that, The pile sinking assembly includes at least two groups of first pile sinking mechanisms arranged at intervals in the direction of precast pile sinking, and / or the first pile sinking mechanism includes at least two groups of first clamping units arranged at intervals in the direction of precast pile sinking; The first clamping spaces formed by the first clamping units are aligned in the direction of precast pile sinking, and the distance between adjacent first pile sinking mechanisms is adjustable; Alternatively, the distance between adjacent first pile sinking mechanisms is fixed.

8. The pile driving device for a precast pile wall according to any one of claims 1 to 7, characterized in that, The first clamping unit and / or the second clamping unit includes at least one adjustable clamping element, and a driving element is provided above or below the clamping element; the driving element includes a linear transmission unit and an adjusting unit, and the moving direction of the execution part of the linear transmission unit is perpendicular to the side wall of the precast pile body; the adjusting unit connects the linear transmission unit and the adjustable clamping element.

9. The pile driving device for a precast pile wall according to claim 8, characterized in that, The adjusting unit includes a first wedge block and a second wedge block that are slidably matched through an inclined plane. The first wedge block is connected to the execution part of the linear transmission unit, and the second wedge block is connected to the adjustable clamping element.

10. The pile driving device for a precast pile wall according to claim 9, characterized in that, The sliding contact surfaces of the first wedge block and the second wedge block are inclined planes. In the direction from the top to the bottom of the column, the shortest distance between the central axis of the first clamping space and / or the second clamping space and the inclined line of the inclined plane gradually increases.

11. The pile driving device for a precast pile wall according to any one of claims 1 to 7, characterized in that, The pile driving equipment further includes an equipment platform, the column is fixed on the equipment platform, a traveling mechanism is provided under the equipment platform, the traveling mechanism includes crawlers and / or traveling wheels, and the traveling mechanism can drive the pile driving equipment to move along the arrangement direction of the precast pile wall.

12. The pile driving device for a precast pile wall according to any one of claims 1 to 7, characterized in that, The pile driving equipment further includes a hoisting mechanism, the pulley block of the hoisting mechanism is arranged at the top of the column, a rope passes through the pulley block and is connected to the first pile driving mechanism, and can drive the first pile driving mechanism to reciprocate in the precast pile sinking direction.

13. The pile driving device for a precast pile wall according to any one of claims 1 to 7, characterized in that, The pile driving assembly further includes a pile gripper that can reciprocate in the precast pile sinking direction, the pile gripper includes a clamping hole adapted to the shape of the precast pile, and the pile gripper is relatively closer to the top of the column than the first pile driving mechanism.

14. The pile driving device for a precast pile wall according to any one of claims 1 to 7, characterized in that, The pile driving equipment further includes a support assembly, the support assembly includes a diagonal tie rod and / or a cage connected to the column.

15. A pile sinking device for a precast pile wall according to any one of claims 1 to 7, characterized in that, It further includes an anti-collision pad provided on the side of the second pile driving mechanism facing the first pile driving mechanism and / or the side of the first pile driving mechanism facing the second pile driving mechanism, and the anti-collision pad includes at least one of rubber, sponge and silica gel.

16. A composite pile driver, characterized in that, A pile driving equipment for a precast pile wall according to any one of claims 1 to 15, further includes a column and a milling groove assembly slidably connected to the column, and the milling groove assembly can reciprocate in the precast pile sinking direction.

Images