Integrated bored pile hole cleaning system

Abstract

The integrated drilling pile hole cleaning system comprises a circulating drilling machine main machine and a mud and sand separation system which are arranged on a crawler-type moving platform, the mud and sand separation system comprises a mud and sand separator, a sand outlet, a slurry outlet and a feeding port are formed in the mud and sand separator, the circulating drilling machine main machine is externally connected with a drilling rod, and a backflow hole is formed in the middle of the drilling rod; the backflow hole is communicated with the feeding port through a mud pump, the sand outlet is externally connected with a sand bag, and the slurry outlet is communicated to a pile hole through a mud pipe. The circulating drilling machine main machine and the mud and sand separation system are arranged on the crawler-type moving platform, transfer of the integrated drilling pile hole cleaning system can be rapidly achieved, the drilling rod is designed to be attached to the surface of a pile hole through folding of a sleeve when pressure is kept during grouting, pile hole supporting is formed, the surface of the pile hole is prevented from collapsing, and the drilling efficiency is improved. Meanwhile, in combination with treatment of the mud-sand separator, the quality of the guided mud is improved, part of residues are prevented from floating in the mud or precipitating at the bottom of a hole, and the construction quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bored pile hole cleaning, and more specifically to an integrated bored pile hole cleaning system. Background Art

[0002] In order to ensure the smooth advancement of the bored pile during the drilling process of the rotary drilling rig, mud with a larger specific gravity is often poured into the pile hole to form a mud skin on the hole wall. The internal water pressure provided by the mud balances the soil pressure in the pile hole to prevent the risk of hole wall collapse.

[0003] However, when the rotary drilling rig uses the drill bit to remove the drilling debris in the hole, some residue will inevitably float in the mud or settle at the bottom of the hole. In order to ensure that the concrete poured in the bored pile does not have the problem of mud or broken piles, the pile foundation hole needs to be cleaned to clean the sediment at the bottom of the hole and filter the mud in the hole. Therefore, a device for pile foundation hole cleaning - sediment separator came into being.

[0004] The residues flushed out by the traditional single sediment separator are directly discharged on the construction site and cannot be properly treated, which has a great impact on the surrounding working environment. On the other hand, the separation efficiency of the traditional sediment separator is low, and the sand content in the treated mud is still relatively high. For the pile holes formed by the current drill rods, due to their relatively rough surface, they have a great impact and are prone to collapse.

[0005] Therefore, the present invention carries out the transformation of the sediment separator equipment and proposes an integrated combined bored pile hole cleaning device. Summary of the invention

[0006] The invention provides an integrated bored pile hole cleaning system to solve the problem that the existing bored pile hole cleaning system has a single function and poor hole cleaning efficiency.

[0007] According to one aspect of the present invention, there is provided an integrated bored pile hole cleaning system, comprising a circulating drilling rig main unit and a mud-sand separation system installed on a crawler mobile platform, the mud-sand separation system comprising a mud-sand separator, the mud-sand separator being provided with a sand outlet, a slurry outlet and a feed inlet, the circulating drilling rig main unit being externally connected to a drill rod, a reflux hole being provided in the middle of the drill rod, the reflux hole being connected to the feed inlet through a mud pump, the sand outlet being externally connected to a sand bag, and the slurry outlet being connected to the pile hole through a mud pipe.

[0008] Preferably, on the basis of the above scheme, the drill rod includes a mounting rod with a return hole, a connecting rod, a lifter and a cutting head, one end of the connecting rod is connected to the mounting rod, and the other end of the connecting rod head is equipped with a connector, the lifter includes a foldable sleeve, an upper sleeve, a lower sleeve and a mounting head, the upper sleeve is sealed and slidably mounted on the connecting rod, the lower sleeve is fixed on the mounting head, the upper part of the sleeve is fixed on the upper sleeve, and the lower part of the sleeve is fixed on the lower sleeve; an installation cavity is provided on the installation head, the connector is inserted into the installation cavity, and the cutting head is installed at the bottom of the installation head.

[0009] Preferably, based on the above solution, a slot is provided at the end of the connector, and a protrusion adapted to the slot is provided at the end of the cutting head.

[0010] Preferably, based on the above solution, two spiral adjustment holes are arranged opposite to each other on the outer circumferential surface of the mounting head, and a plug is arranged on the connector, and the plug is inserted into the adjustment hole.

[0011] Preferably, based on the above scheme, a connecting wing is rotatably mounted on the end of the connecting rod via a mounting shaft, the connecting wing is arc-shaped and an arc-shaped pressure plate is provided at the end thereof, and the pressure plate intermittently abuts against the inner side surface of the sleeve.

[0012] Preferably, based on the above solution, a through hole is provided on the bottom of the upper sleeve, and the connecting wing is inserted into the through hole and extends outward.

[0013] Preferably, based on the above solution, a guide column is provided on the end face of the mounting head close to the connector, an arc-shaped guide hole is provided on the connecting wing, and the guide column is adapted to the guide hole.

[0014] Preferably, based on the above scheme, the crawler mobile platform includes a frame and a crawler mounted on the frame, the frame is provided with a swivel seat, and a travelling frame with a slide rail is provided on the swivel seat, the slide rail is provided with a mounting seat, and the mounting seat is provided with a mud pipe hoist.

[0015] The integrated bored pile hole cleaning system of the present invention can quickly realize the transfer of the integrated bored pile hole cleaning system by arranging a circulating drilling rig main unit and a mud and sand separation system on a crawler mobile platform. Combined with the design of the drill rod, when the grouting pressure is maintained, the casing can be folded and fitted on the pile hole surface to form support for the pile hole and prevent the pile hole surface from collapsing. At the same time, combined with the treatment of the mud and sand separator, the quality of the mud after introduction is improved, and some residues are prevented from floating in the mud or settling at the bottom of the hole, thereby improving its construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0017] Figure 1 It is a schematic diagram of the principle structure of the integrated bored pile hole cleaning system of the present invention;

[0018] Figure 2 The structural diagram of the integrated bored pile hole cleaning system of the present invention without the circulating drilling rig host;

[0019] Figure 3 A side view of the integrated bored pile hole cleaning system of the present invention without the circulation drilling rig mainframe;

[0020] Figure 4 This is a first state diagram of the drill rod of the present invention;

[0021] Figure 5 A cross-sectional view of a drill pipe in a first state of the present invention;

[0022] Figure 6 A second state diagram of the drill rod of the present invention;

[0023] Figure 7 A cross-sectional view of a drill rod in a second state of the present invention;

[0024] Figure 8 An exploded view of the drill pipe of the present invention;

[0025] Fig. 9 is a cross-sectional view of a mud-sand separator of the present invention;

[0026] Fig.10 is a three-dimensional diagram of a sieve tray of the present invention;

[0027] Fig.11 A top view of the sieve tray of the present invention;

[0028] Description of Figure Numbers:

[0029] Crawler mobile platform 1, frame 11, crawler 12, slewing seat 13, slide rail 14, travel frame 15, mounting seat 16, mud pipe hoist 17

[0030] Circulation drilling machine main body 2, drill rod 21, return hole 22, mounting rod 23, connecting rod 24, mounting shaft 241, connecting wing 242, pressing plate 243, guide hole 244, lifter 25, sleeve 251, upper sleeve 252, insertion hole 253, lower sleeve 254, mounting head 26, mounting cavity 261, adjustment hole 262, guide column 263, connector 27, card slot 271, latch 272, cutting head 28, protrusion 281;

[0031] Mud and sand separation system 3, mud and sand separator 31, sand outlet 32, slurry outlet 33, feed inlet 34, separation kettle 35, sieve plate 351, separation layer 352, inner layer 353, outer layer 354, pyramid 355, sieve hole 356;

[0032] Mud pump 4 , mud pipe 41 , pile hole 42 . DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0035] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0036] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0037] In the embodiments shown in the drawings, the indications of directions (such as up, down, left, right, front and back) used to explain the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, the indications of these directions also change accordingly.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0040] See also Figure 1 , and combined with Figure 2 and Figure 3 As shown, an integrated bored pile hole cleaning system of the present invention comprises a circulating drilling rig main unit 2 and a mud-sand separation system 3 mounted on a crawler 12-type mobile platform 1, the mud-sand separation system 3 comprises a mud-sand separator 31, the mud-sand separator 31 is provided with a sand outlet 32, a slurry outlet 33 and a feed inlet 34, the circulating drilling rig main unit is externally connected to a drill rod 21, a return hole 22 is provided in the middle of the drill rod 21, the return hole 22 is connected to the feed inlet 34 through a mud pump 4, the sand outlet 32 ​​is externally connected to a sand bag, and the slurry outlet 33 is connected to the pile hole 42 through a mud pipe 41.

[0041] Specifically, the crawler 12-type mobile platform 1 of the present invention includes a frame 11 and a crawler 12 installed on the frame 11, a swivel seat 13 is provided on the frame 11, and a travel frame 15 with a slide rail 14 is provided on the swivel seat 13, a mounting seat 16 is installed on the slide rail 14, and the mounting seat 16 is installed with a mud pipe 41 hoist 17.

[0042] When in use, the circulating drilling machine and the mud-sand separation system 3 are transported to the construction site to be processed through the crawler 12-type mobile platform 1, and the rotating drilling machine is started to drive the drill rod 21 to drill a hole at the designed position. During the drilling process, the generated mud is introduced into the feed port 34 of the mud-sand separator 31 through the reflux hole 22 by the mud pump 4, and the mud and sand are separated by the mud-sand separator 31. The separated mud and sand are discharged into the sand bag through the sand outlet 32 ​​for packaging, so as to avoid the mud and sand from polluting the surrounding working environment; and the separated mud is guided into the formed pile hole 42 through the slurry outlet 33, and the soil pressure in the pile hole 42 is balanced by the internal water pressure provided by the mud to prevent the risk of hole wall collapse.

[0043] During the pile drilling process, due to the soil quality, for example, when the soil quality is relatively soft, the soil quality on the surface of the pile hole 42 formed during the pile drilling process is relatively soft, so the surface of the pile hole 42 is uneven, resulting in the pile hole 42 collapsing due to the slurry injected during the grouting process. In view of the above problems, the drill rod 21 of the present application improved by the present invention has a specific structure as follows: Figure 3 shown.

[0044] The drill rod 21 of the present invention includes a mounting rod 23 with a return hole 22, a connecting rod 24, a lifter 25 and a cutting head 28. The mounting rod 23 is connected to a circulating drilling rig main unit 2 installed on a crawler 12-type mobile platform 1. The mounting rod 23 is driven to rotate by the circulating drilling rig main unit 2 to drive the connecting rod 24 at the other end of the mounting rod 23 to rotate.

[0045] The end of the connecting rod 24 of the present invention is installed with a connector 27, and the lifter 25 includes a foldable sleeve 251, an upper sleeve 252, a lower sleeve 254 and a mounting head 26. The sleeve 251 is retractable. In actual operation, the sleeve 251 is made of a high-toughness metal sleeve 251 or a high-strength plastic tube. The upper sleeve 252 of the present invention is sealed and slidably mounted on the connecting rod 24, and the lower sleeve 254 is fixed on the mounting head 26. The upper part of the sleeve 251 is fixed on the upper sleeve 252, and the lower part of the sleeve 251 is fixed on the lower sleeve 254 to form a sealed structural state; the mounting head 26 of the present invention is provided with a mounting cavity 261, one end of the connector 27 is fixed to the connecting rod 24, and the other end of the connector 27 is inserted into the mounting cavity 261, and the cutting head 28 is installed at the bottom of the mounting head 26. For the specific structure, please refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 shown.

[0046] It should be noted that, in order to facilitate the return of mud, the middle parts of the mounting rod 23, the connecting rod 24, the connector 27 and the cutting head 28 of the present invention are all provided with return holes 22 for returning mud.

[0047] During use, when the cutting head 28 at the bottom interacts with the inner end face of the hole and drilling is performed, the mud generated passes through the reflux hole 22 in the cutting head 28, the reflux hole 22 in the middle of the connecting head, and then through the reflux hole 22 of the connecting rod 24 and the mounting rod 23, and is guided into the mud-sand separator 31 for rapid separation.

[0048] Please continue reading Figure 3 As shown, in order to limit the telescopic height of the lifter 25, the present invention designs the connecting rod 24 to have a structure that is large in the middle and small at both ends. The upper part of the connecting rod 24 is connected to the connecting rod 24 by threads, and an internal thread is designed in the return hole 22 at the lower end of the connecting rod 24. The connector 27 is T-shaped, and a return hole 22 is designed at its center position. The upper part of the connector 27 is provided with an external thread that is compatible with the internal thread on the connecting rod 24. The connector 27 passes through the mounting hole on the mounting head 26, extends upward and is fixed to the end of the connecting rod 24.

[0049] When the cutting head 28 at the bottom just starts to act on the inner end face of the pile hole 42, the connecting head and the cutting head 28 are meshed with each other, that is, the lifter 25 is in an extended state at this time. As the cutting depth increases, the mud generated will gradually increase, and the increased mud will be introduced into the connecting head through the return hole 22 on the cutting head 28 and enter the accommodating cavity. Due to the effect of gravity, the lower sleeve 254 fixed on the mounting head 26 will move downward. During the movement, due to the limitation of the movement of the middle connecting head in the accommodating cavity, the middle sleeve will bend to form a protrusion. The protrusion formed by the bending of the sleeve can act on the inner edge surface of the pile hole 42, which can not only support it, but also level it, so as to reduce the problem that the molding surface of the pile hole 42 is too rough, which will cause scouring after grouting and cause the pile hole 42 to collapse.

[0050] It should be noted that a slot 271 is provided at the end of the connector 27 of the present invention, and a protrusion 281 adapted to the slot 271 is provided at the end of the cutting head 28, that is, when the cutting head 28 starts to move and cut, the slot 271 and the protrusion 281 can act to achieve mutual engagement between the two, so as to achieve the transmission of force and compensate for the force transmitted from the connecting rod 24, the connecting head and the mounting head 26.

[0051] The outer circumferential surface of the mounting head 26 of the present invention is provided with two oppositely arranged and spirally shaped adjustment holes 262, and the connector 27 is provided with a pin 272, which is inserted into the adjustment hole 262 to further limit the height of the connector 27 in the mounting head 26 rising or falling in the accommodating cavity.

[0052] In actual use, the protrusion formed by the expansion and contraction of the sleeve has limited strength. In order to ensure its force on the surface of the pile hole 42, the end of the connecting rod 24 of the present invention is rotatably mounted with a connecting wing 242 through a mounting shaft 241. The connecting wing 242 is arc-shaped and an arc-shaped pressure plate 243 is provided at its end. The pressure plate 243 intermittently abuts against the inner side of the sleeve 251. An insertion hole 253 is provided at the bottom of the upper sleeve 252. The connecting wing 242 is inserted into the insertion hole 253 and extends outward to control the expansion or retraction of the connecting wing 242.

[0053] When the sleeve is in an extended state, the connecting wing 242 is retracted inside the upper sleeve 252 under the force of the inner edge of the sleeve, and the end of the pressure plate 243 abuts against the inner edge of the sleeve. When the sleeve is in a contracted state, that is, the middle part of the sleeve is folded, at this time, due to the loss of external restraining force, the connecting wing 242 automatically opens to abut against the inner edge of the folded sleeve to form a support, which acts on the inner edge of the pile hole 42.

[0054] In order to ensure the smoothness of its movement, the present invention provides a guide column 263 on the end surface of the mounting head 26 close to the connector 27 , and an arc-shaped guide hole 244 is provided on the connecting wing 242 , and the guide column 263 is adapted to the guide hole 244 .

[0055] Please continue reading Figure 1 and Figure 2 As shown, the crawler 12-type mobile platform 1 of the present invention includes a frame 11 and a crawler 12 installed on the frame 11, a swivel seat 13 is provided on the frame 11, and a travel frame 15 with a slide rail 14 is provided on the swivel seat 13, a mounting seat 16 is installed on the slide rail 14, and the mounting seat 16 is installed with a mud pipe 41 hoist 17.

[0056] When in use, the swivel seat 13 can be rotated to drive the circulating drilling rig main unit 2 and the mud-sand separation system 3 installed thereon to rotate to adapt to position processing at different angles. The relative position of the mud pipe 41 hoist 17 can be adjusted through the slide rail 14 to prevent the mud pipe 41 from folding and affecting its mud transportation efficiency.

[0057] Please continue reading Fig. 9 , Bin just got married Fig.10 and Fig.11 As shown, it should be noted that the mud and sand separator 31 of the present invention includes a separation kettle 35 and a sieve plate 351 installed in the separation kettle 35. The separation kettle 35 is conical, and the sieve plates 351 are installed in the separation kettle 35 at multiple intervals. Adjacent sieve plates 351 form a separation layer 352. A feed port 34 is provided on the separation kettle 35, and the feed port 34 is introduced tangentially to the separation kettle 35. In this way, after the reflux mud is introduced, it will rotate along the inner edge surface of the sieve plate 351, and rotate rapidly under the high pressure of the mud. With the action of centrifugal force, the mud with lower density will be thrown outward and thrown out through the fan disk, while the mud and sand particles with higher density will remain in the middle and be gradually output downward and discharged through the sand outlet 32 ​​at the bottom of the separation kettle 35, and the slurry outlet 33 at the top of the separation kettle 35 will quickly discharge the mud between the fan disk and the separation kettle 35.

[0058] In order to improve the mud and sand separation effect and efficiency, the present invention also distributes the sieve plate 351 into an inner layer 353 and an outer layer 354. The inner layer 353 is arranged near the center of the sieve plate 351, and the outer layer 354 is arranged at the principle center of the sieve plate 351. The surface of the inner layer 353 is provided with a trapezoidal pyramid 355, and the surface of the outer layer 354 is provided with a sieve hole 356. When the mud acts tangentially on the surface of the sieve plate 351 through the feed port 34, the mud rotates at a high speed and is thrown out to the outer layer 354 by the rotational force, and enters the space between the separation kettle 35 and the screen through the sieve hole 356 to achieve the mud separation. The mud and sand with higher density are gradually deposited to the center of the sieve plate 351 due to the action of gravity and the action of the pyramid 355 to further reduce its centrifugal force, and are discharged outward through the sand outlet hole in the center of the sieve plate 351.

[0059] Compared with the prior art, the present invention is assembled through a crawler 12-type mobile platform 1, which has better mobility, so that the bored pile hole cleaning equipment can be moved according to the needs of on-site construction, while also reducing the risk of lifting operations.

[0060] The sediment separator of the present invention uses an eco-bag to modify the silt discharge port of the sediment separator, which can effectively and centrally treat the residue and avoid the discharged residue from polluting the environment. The invention integrates the walking system, the power system, the control system and the hole cleaning device, so that only one operator is required to complete the hole cleaning operation of the equipment during the production process, which greatly reduces the construction cost. Therefore, the invention has great promotion value in bored pile hole cleaning construction.

[0061] Finally, the method of the present application is only a preferred implementation scheme and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated bored pile hole cleaning system, characterized in that: The utility model comprises a circulating drilling rig main body and a mud-sand separation system installed on a crawler mobile platform, wherein the mud-sand separation system comprises a mud-sand separator, and the mud-sand separator is provided with a sand outlet, a slurry outlet and a feed inlet. The circulating drilling rig main body is externally connected to a drill rod, a reflux hole is provided in the middle of the drill rod, the reflux hole is connected with the feed inlet through a mud pump, the sand outlet is externally connected to a sand bag, and the slurry outlet is connected to the pile hole through a mud pipe.

2. An integrated bored pile hole cleaning system as claimed in claim 1, characterized in that: The crawler type mobile platform comprises a frame and a crawler mounted on the frame, a slewing seat is arranged on the frame, a travelling frame with a slide rail is arranged on the slewing seat, a mounting seat is arranged on the slide rail, and a mud pipe hoist is arranged on the mounting seat.

3. An integrated bored pile hole cleaning system as claimed in claim 1, characterized in that: The mud-sand separator comprises a separation kettle and a sieve plate installed in the separation kettle. The sieve plates are installed in the separation kettle at intervals. Adjacent sieve plates form a separation layer. The separation kettle is provided with a feed port, and the feed port is introduced tangentially to the separation kettle.

4. An integrated bored pile hole cleaning system as claimed in claim 1, characterized in that: The drill rod includes a mounting rod with a return hole, a connecting rod, a lifter and a cutting head. One end of the connecting rod is connected to the mounting rod, and the other end of the connecting rod head is equipped with a connector. The lifter includes a foldable sleeve, an upper sleeve, a lower sleeve and a mounting head. The upper sleeve is sealingly slidably sleeved on the connecting rod, the lower sleeve is fixed on the mounting head, the upper part of the sleeve is fixed on the upper sleeve, and the lower part of the sleeve is fixed on the lower sleeve; the mounting head is provided with a mounting cavity, the connector is inserted into the mounting cavity, and the cutting head is mounted on the bottom of the mounting head.

5. An integrated bored pile hole cleaning system as claimed in claim 4, characterized in that: The end of the connector is provided with a slot, and the end of the cutting head is provided with a protrusion matched with the slot.

6. An integrated bored pile hole cleaning system as claimed in claim 4, characterized in that: Two spiral adjustment holes are arranged opposite to each other on the outer circumferential surface of the mounting head, and a plug is arranged on the connector, and the plug is inserted into the adjustment hole.

7. An integrated bored pile hole cleaning system as claimed in claim 4, characterized in that: A connecting wing is rotatably mounted on the end of the connecting rod via a mounting shaft. The connecting wing is arc-shaped and an arc-shaped pressing plate is arranged at the end thereof. The pressing plate intermittently presses against the inner side surface of the sleeve.

8. An integrated bored pile hole cleaning system as claimed in claim 7, characterized in that: The bottom of the upper sleeve is provided with an insertion hole, and the connecting wing is inserted into the insertion hole and extends outward.

9. An integrated bored pile hole cleaning system as claimed in claim 8, characterized in that: The end surface of the mounting head close to the connector is provided with a guide column, the connecting wing is provided with an arc-shaped guide hole, and the guide column is adapted to the guide hole.

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