Slurry solidification treatment device and treatment method in pile foundation construction

Abstract

The invention belongs to the technical field of slurry solidification, and discloses a slurry solidification treatment device and method in pile foundation construction.The slurry solidification treatment device in pile foundation construction comprises a filtering mechanism and a pressing head, the filtering mechanism is used for conducting solid-liquid separation on slurry, and the pressing head is in power connection with a driver; the volume of the slurry in the filtering mechanism is compressed under the action of the driver; the filtering mechanism comprises a water bowl, a mesh basket and a gauze element which are stacked in sequence, the water bowl and the mesh basket are both hemispherical, a water collecting space is formed between the water bowl and the mesh basket, and the gauze element is attached to the inner wall of the mesh basket; the pressure head is provided with an incomplete sphere, a circular ring and an abutting ring; when the pressing head abuts against the filtering mechanism, the outer surface of the abutting ring makes contact with the gauze element, and a compression space is formed between the spherical surface of the incomplete ball and the gauze element. According to the invention, the solidification treatment of the slurry can be effectively realized, the separated water can be reutilized, the separated silt can be backfilled and utilized, and the pollution to the environment is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of mud solidification, and in particular relates to a mud solidification treatment device and a treatment method in pile foundation construction. Background Art

[0002] Pile foundation construction refers to the construction process of the building foundation. The pile foundation consists of piles and pile caps. Pile foundation construction methods include: hammering method, vibration method, pressure method and water jet method.

[0003] A large amount of mud will be generated during the pile foundation construction process. The mud treatment method is mostly to use on-site mining of mud pools, apply curing agent through the mud bucket of the excavator and stir the mud. Although this treatment method is low in cost, it has the following disadvantages: first, it wastes limited land resources; second, it is easy to cause secondary pollution; during the treatment process, the mud bucket of the excavator is used to stir the mud. If the operation is improper, it is easy to damage the anti-seepage layer of the mud pool, and the drilling waste fluid is easy to seep into the ground and pollute the groundwater; third, the treatment process is primitive and cannot meet future environmental protection requirements.

[0004] For this purpose, a mud solidification treatment device and a treatment method in pile foundation construction are proposed. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a mud solidification treatment device and a treatment method in pile foundation construction, which solves the environmental problems caused by the on-site excavation and mixing solidification adopted in the prior art.

[0006] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0007] In a first aspect, the present invention provides a mud solidification treatment device in pile foundation construction, comprising a filtering mechanism and a pressure head, wherein the filtering mechanism is used to separate the mud into solid and liquid, and the pressure head is connected to a driver power and compresses the volume of the mud in the filtering mechanism under the action of the driver;

[0008] The filtering mechanism comprises a water bowl, a net basket and a gauze which are stacked in sequence, the water bowl and the net basket are both hemispherical, a water collecting space is formed between the water bowl and the net basket, and the gauze is attached to the inner wall of the net basket;

[0009] The pressure head is provided with an incomplete sphere, a circular ring and a contact ring, the circular ring is distributed along the outer ring of the incomplete sphere, the contact ring is distributed along the outer ring of the circular ring, the spherical curvature of the incomplete sphere is smaller than the curvature of the inner wall of the basket, and the outer surface curvature of the contact ring is equal to the curvature of the inner wall of the basket;

[0010] When the pressure head contacts the filter mechanism, the outer surface of the contact ring contacts the gauze, and a compression space is formed between the spherical surface of the incomplete sphere and the gauze.

[0011] In the present invention, the mud is pumped into the filtering mechanism by the mud pump, and the water bowl, the mesh basket and the gauze can effectively hold the mud that has not been filtered. After the mud is quantitatively injected, the pressure head, under the action of the driver, moves closer to the water bowl and compresses the mud in space, and the water in the mud escapes through the mesh holes of the gauze, while the silt is intercepted. The water escaping outward passes through the mesh basket and falls into the water collecting space between the water bowl and the mesh basket, and the silt is further compacted by the pressure head, reducing its own volume and reducing its own water content.

[0012] Specifically, the main functions of the mesh basket are: first, to hold the mesh and transfer the pressure on the mesh during filtration to the water bowl to prevent the mesh from being broken and failing due to excessive force; second, to standardize the laying shape of the mesh and facilitate the cooperation with the resistance ring of the pressure head; third, to form a certain interval between the mesh and the water bowl, which serves as a water gathering space for the convergence of escaping water flow;

[0013] When the pressure head is pressed down, the outer surface of the resistance ring first contacts the gauze and then contacts the mesh basket. The incomplete sphere, the circular ring and the resistance ring cooperate with each other to form a closed space above the gauze to prevent the mud from escaping outward. Specifically, the resistance ring contacts the gauze, closing the gap between the resistance ring and the gauze, so that the mud will not escape from the gap during filtration. The circular ring closes the space between the incomplete sphere and the resistance ring. The spherical curvature of the incomplete sphere is smaller than the curvature of the inner wall of the mesh basket, so that a compressed space is formed between the spherical surface of the incomplete sphere and the gauze. The volume of this limited compressed space is smaller than the volume of the mud to be treated. Therefore, the mud can be compressed. Under the extrusion effect, the moisture in the mud escapes through the mesh holes of the gauze, while the remaining mud and sand are continuously compacted and solidified in the limited space.

[0014] In a second aspect, the present invention provides a method for solidifying mud in pile foundation construction, which uses the above-mentioned device for solidifying mud in pile foundation construction to solidify the mud.

[0015] The beneficial effects of the present invention are as follows: the present invention can effectively realize the solidification treatment of mud, the separated water can be reused, and the separated silt can be backfilled and utilized, so as to avoid pollution to the environment. Specifically, the mud is pumped into the filtering mechanism by the mud pump, and the water bowl, the mesh basket and the gauze can effectively hold the mud that has not been filtered. After the mud is quantitatively injected, the pressure head, under the action of the driver, moves closer to the water bowl and compresses the mud in space. The water in the mud escapes through the mesh holes of the gauze, while the silt is intercepted. The water escaping outward passes through the mesh basket and falls into the water collecting space between the water bowl and the mesh basket, and the silt is further compacted and solidified by the pressure head, thereby reducing its own volume and its own water content. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0018] Figure 2 For the embodiment of the present invention Figure 1 A partial enlarged view of the middle A;

[0019] Figure 3 For the embodiment of the present invention Figure 1 A partial enlarged view of point B in the middle;

[0020] Figure 4 For the embodiment of the present invention Figure 1 Schematic diagram of the structure of the medium water bowl;

[0021] Figure 5 For the embodiment of the present invention Figure 4 A partial enlarged view of point C in the middle;

[0022] Figure 6 For the embodiment of the present invention Figure 4 A partial enlarged view of point D in the middle;

[0023] Figure 7 For the embodiment of the present invention Figure 1 Top view of the middle screen;

[0024] Figure 8 For the embodiment of the present invention Figure 1 Schematic diagram of the structure of the medium pressure head;

[0025] Fig. 9 For the embodiment of the present invention Figure 1 Top view of the middle rack;

[0026] The main component symbols are described as follows:

[0027] 1. Water bowl; 11. Water outlet; 12. Rotating shaft; 13. Binding pile; 14. Mushroom nail;

[0028] 2. Net basket;

[0029] 3. gauze; 31. second cable tie; 32. first cable tie; 33. telescopic ring;

[0030] 4. Bearing with seat;

[0031] 5. Gear motor;

[0032] 6. Driver;

[0033] 7. Pressure head; 71. Incomplete sphere; 72. Ring; 73. Resistance ring; 74. Power rod; 75. Guide rod;

[0034] 8. rack; 81. guide hole; 82. via hole;

[0035] 9. Catheter;

[0036] 10. Compress space. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is described in detail below in conjunction with specific embodiments and their accompanying drawings. The embodiments recorded herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention; these descriptions are explanatory and exemplary and should not be construed as limitations on the embodiments of the present invention and the scope of protection of the present invention. In addition to the embodiments recorded herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims of this application and its specification, including technical solutions that adopt any obvious replacements and modifications to the embodiments recorded herein.

[0038] Example 1

[0039] like Figure 1 , 2 As shown in , 8, this embodiment provides a mud solidification treatment device in pile foundation construction, including a filtering mechanism and a pressure head 7. The filtering mechanism is used to separate the mud into solid and liquid. The pressure head 7 is connected to the driver 6 and compresses the volume of the mud in the filtering mechanism under the action of the driver 6;

[0040] The filtering mechanism comprises a water bowl 1, a net basket 2 and a gauze 3 which are stacked in sequence. The water bowl 1 and the net basket 2 are both hemispherical, a water collecting space is formed between the water bowl 1 and the net basket 2, and the gauze 3 is attached to the inner wall of the net basket 2;

[0041] The pressure head 7 is provided with an incomplete sphere 71, a ring 72 and a contact ring 73. The ring 72 is distributed along the outer ring of the incomplete sphere 71, and the contact ring 73 is distributed along the outer ring of the ring 72. The spherical curvature of the incomplete sphere 71 is smaller than the curvature of the inner wall of the basket 2, and the curvature of the outer surface of the contact ring 73 is equal to the curvature of the inner wall of the basket 2.

[0042] When the pressure head 7 contacts the filtering mechanism, the outer surface of the contact ring 73 contacts the gauze 3 , and a compression space 10 is formed between the spherical surface of the incomplete sphere 71 and the gauze 3 .

[0043] In this embodiment, the mud is pumped into the filtering mechanism by the mud pump, and the water bowl 1, the mesh basket 2 and the gauze 3 can effectively hold the mud that has not been filtered. After the mud is quantitatively injected, the pressure head 7, under the action of the driver 6, moves closer to the water bowl 1 and compresses the mud in space, and the water in the mud escapes through the mesh holes of the gauze 3, while the silt is intercepted. The water escaping outward passes through the mesh basket 2 and falls into the water collecting space between the water bowl 1 and the mesh basket 2, and the silt is further compacted by the pressure head 7 to reduce its own volume and reduce its own water content.

[0044] Specifically, the functions of the mesh basket 2 are: first, to hold the mesh 3 and transfer the pressure on the mesh 3 during filtration to the water bowl 1 to prevent the mesh 3 from being broken and failing due to excessive force; second, to standardize the laying shape of the mesh 3 and facilitate the cooperation with the abutment ring 73 of the pressure head 7; third, to form a certain interval between the mesh basket 2 and the water bowl 1, which serves as a water collection space for the convergence of the escaping water flow;

[0045] When the pressure head 7 is pressed down, the outer surface of the resistance ring 73 first contacts the gauze 3 and then contacts the basket 2. The incomplete sphere 71, the circular ring 72 and the resistance ring 73 cooperate with each other to form a closed space above the gauze 3 to prevent the mud from escaping outward. Specifically, the resistance ring 73 contacts the gauze 3 and closes the gap between the resistance ring 73 and the gauze 3, so that the mud will not escape from the gap during filtration. The circular ring 72 closes the space between the incomplete sphere 71 and the resistance ring 73. The spherical curvature of the incomplete sphere 71 is smaller than the curvature of the inner wall of the basket 2, so that a compression space 10 is formed between the spherical surface of the incomplete sphere 71 and the gauze 3. The volume of this limited compression space is smaller than the volume of the mud to be treated. Therefore, the compression of the mud can be achieved. Under the extrusion effect, the moisture in the mud escapes through the mesh holes of the gauze 3, and the remaining mud and sand are continuously compacted and solidified in the limited space.

[0046] Example 2

[0047] like Figure 2 , 4 As shown, this embodiment provides a mud solidification treatment device in pile foundation construction. The difference from Embodiment 1 is that the inner wall array of the water bowl 1 has a plurality of mushroom nails 14 for supporting the net basket 2. The net basket 2 is stacked on the inner side of the water bowl 1, and a water collecting space is formed between the net basket 2 and the water bowl 1 through the mushroom nails 14; the net basket 2 is connected to the mushroom nails 14 by bundling, and the mushroom-shaped head of the mushroom nail 14 limits the bundling.

[0048] In this embodiment, the mushroom nail 14 is used to support the net basket 2. In addition, the mushroom nail 14 itself has a certain height. While the mushroom nail 14 provides support, it forms a water collecting space between the net basket 2 and the water bowl 1. The water collecting space is used to gather the escaping water flow. The mushroom head of the mushroom nail 14 can be designed to be flat to increase the contact area with the net basket 2, thereby reducing the pressure drop on the net basket 2 and reducing the deformation of the net basket 2. The net basket 2 is fixed by bundling, which can be done by using iron wire with an outer skin. The iron wire passes through the net basket 2 and is tied to the mushroom nail 14.

[0049] Example 3

[0050] like Figure 3 , 4 As shown in Figures 6, this embodiment provides a mud solidification treatment device for pile foundation construction. The difference from Example 1 is that a water outlet 11 is provided at the bottom of the water bowl 1, and the water outlet 11 is connected to the conduit 9.

[0051] In this embodiment, the water outlet 11 provides an external discharge channel for the water flow filtered out to prevent the water flow from continuously accumulating in the water collecting space, and the conduit 9 can adjust the terminal position of the water flow discharge.

[0052] Example 4

[0053] like Figure 4 , 5 As shown in Figures 7, this embodiment provides a mud solidification treatment device for pile foundation construction. The difference from Example 1 is that a binding pile 13 is provided on the upper surface of the bowl edge of the water bowl 1, a first cable tie 32 is provided on the outer circle of the gauze 3, the end of the first cable tie 32 is connected to the telescopic ring 33, and a second cable tie 31 is provided in the center of the gauze 3.

[0054] In this embodiment, the gauze mesh 3 is fixed as follows: there are a plurality of first straps 32 on the outer ring of the gauze mesh 3, and the elastic expansion ring 33 at the end of the first strap 32 is put on the binding pile 13, so as to pull the gauze mesh 3 apart and unfold the gauze mesh 3, and the second strap 31 in the center of the gauze mesh 3 is tied to the net basket 2, so that the gauze mesh 3 is concave downward and attached to the curved surface of the net basket 2.

[0055] Example 5

[0056] like Figure 1 , 5 As shown, this embodiment provides a mud solidification treatment device in pile foundation construction. The difference from Example 1 is that a rotating shaft 12 symmetrically distributed 180° is provided on the outer side of the bowl edge of the water bowl 1. The rotating shaft 12 cooperates with the seat bearing 4, and one of the rotating shafts 12 is connected to the reduction motor 5.

[0057] In this embodiment, the reduction motor 5 can apply a large torque at a lower speed, thereby driving the rotating shaft 12 of the water bowl 1 to rotate about the seat bearing 4. The seat bearing 4 is used to provide a lower friction coefficient and support the water bowl 1; the water bowl 1 can pour out the compacted and solidified mud and sand therein by rotating.

[0058] Example 6

[0059] like Figure 1 , 8 As shown in Figures 9 and 9, this embodiment provides a mud solidification treatment device in pile foundation construction. The difference from Example 1 is that it also includes a frame 8, and the driver 6 is fixed on the upper surface of the frame 8 with the output end facing downward. The output end of the driver 6 passes through the frame 8. The pressure head 7 is also provided with a guide rod 75 and a power rod 74. The upper end of the power rod 74 is connected to the driver 6. The frame 8 is provided with a guide hole 81 and a through hole 82 for passing the output end of the driver 6. A copper sleeve is installed in the guide hole 81, and the guide rod 75 passes through the copper sleeve; the driver 6 selects any one of a screw lift, a cylinder, and a hydraulic cylinder.

[0060] In this embodiment, the driver 6, as a provider of pressing and lifting power for the pressure head 7, can be more adaptively selected according to actual needs and limited conditions of the construction site, such as an electric screw lift, a pneumatically driven cylinder, or a hydraulically driven hydraulic cylinder;

[0061] The guide rod 75 on the pressure head 7 cooperates with the copper sleeve in the guide hole 81 to guide the up and down movement of the pressure head 7. The wear of the movement occurs on the copper sleeve. The guiding function can be restored by replacing the copper sleeve with lower cost, avoiding the need to replace the guide rod 75 or the frame 8.

[0062] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A mud solidification treatment device in pile foundation construction, characterized in that: It comprises a filtering mechanism and a pressure head (7), wherein the filtering mechanism is used for performing solid-liquid separation on mud, and the pressure head (7) is dynamically connected to a driver (6) and compresses the volume of mud in the filtering mechanism under the action of the driver (6); The filtering mechanism comprises a water bowl (1), a net basket (2) and a gauze (3) stacked in sequence, the water bowl (1) and the net basket (2) both being hemispherical, a water collecting space being formed between the water bowl (1) and the net basket (2), and the gauze (3) being attached to the inner wall of the net basket (2); The pressure head (7) is provided with an incomplete sphere (71), a circular ring (72) and a contact ring (73); the circular ring (72) is distributed in a circular shape along the outer circle of the incomplete sphere (71); the contact ring (73) is distributed in a circular shape along the outer circle of the circular ring (72); the spherical curvature of the incomplete sphere (71) is smaller than the curvature of the inner wall of the basket (2); the curvature of the outer surface of the contact ring (73) is equal to the curvature of the inner wall of the basket (2); When the pressure head (7) contacts the filtering mechanism, the outer surface of the contact ring (73) contacts the gauze (3), and a compression space (10) is formed between the spherical surface of the incomplete sphere (71) and the gauze (3).

2. A mud solidification treatment device in pile foundation construction according to claim 1, characterized in that: The inner wall array of the water bowl (1) is provided with a plurality of mushroom nails (14) for supporting the net basket (2); the net basket (2) is stacked on the inner side of the water bowl (1) and forms a water collecting space between the mushroom nails (14) and the water bowl (1).

3. A mud solidification treatment device in pile foundation construction according to claim 2, characterized in that: The net basket (2) is connected to the mushroom nail (14) by means of bundling, and the mushroom-shaped head of the mushroom nail (14) limits the position of the bundling piece.

4. The mud solidification treatment device in pile foundation construction according to claim 1 is characterized by: A water outlet hole (11) is provided at the bottom of the water bowl (1), and the water outlet hole (11) is connected to a conduit (9).

5. The mud solidification treatment device in pile foundation construction according to claim 1, characterized in that: The water bowl (1) is provided with a binding stake (13) on the upper surface of the bowl edge, the outer ring of the gauze (3) is provided with a first cable belt (32), the end of the first cable belt (32) is connected to a telescopic ring (33), and the center of the gauze (3) is provided with a second cable belt (31).

6. The mud solidification treatment device in pile foundation construction according to claim 1, characterized in that: The water bowl (1) is provided with rotating shafts (12) symmetrically distributed at 180 degrees along the outer side of the bowl, the rotating shafts (12) cooperate with the seat bearing (4), and one of the rotating shafts (12) is connected to the reduction motor (5).

7. The mud solidification treatment device in pile foundation construction according to claim 1, characterized in that: The machine also comprises a frame (8), wherein the driver (6) is fixed on the upper surface of the frame (8) in a posture where the output end is downward, and the output end of the driver (6) passes through the frame (8). The pressure head (7) is also provided with a guide rod (75) and a power rod (74), and the upper end of the power rod (74) is connected to the driver (6). The frame (8) is provided with a guide hole (81) and a through hole (82) for passing the output end of the driver (6), and a copper sleeve is installed in the guide hole (81), and the guide rod (75) passes through the copper sleeve.

8. The mud solidification treatment device in pile foundation construction according to claim 7, characterized in that: The driver (6) is selected from any one of a screw lift, a pneumatic cylinder and a hydraulic cylinder.

9. A method for solidifying mud in pile foundation construction, characterized in that: The mud solidification treatment device in pile foundation construction described in any one of claims 1 to 8 is used to perform mud solidification treatment.

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