Double-wheel milling deep-mixing cement-soil mixing wall slurry coring device

Abstract

The utility model discloses a double-wheel milling deep mixing cement soil mixing wall slurry coring device, which comprises a connecting pipe connected with a motor at the top of a drilling machine, the bottom of the connecting pipe is in threaded connection with a connector, a coring pipe is arranged at the bottom end of the connector and comprises a positive pipe and a negative pipe, a semi-sphere is arranged on the inner top wall of the positive pipe, and the inner top wall of the negative pipe is provided with a hollow ball. And an arc hole is formed in the side wall of the inner top of the main pipe. Core drilling and sampling are conducted on the stirring wall after two weeks of the stirring wall are completed, a drilling machine drives the coring pipe to conduct water injection and coring on different depths of the stirring wall through the multiple connecting pipes, the positioning strip is arranged at the connecting position of the positive pipe and the negative pipe, and therefore the positive pipe and the negative pipe can be connected in a clamped mode to form the coring pipe. By arranging the arc holes and the filter screen plates on the two sides of the coring pipe, redundant liquid can be conveniently filtered in the coring process of the stirring wall, a sample core of the stirring wall can be compacted in the pipe and can be conveniently taken out for detection subsequently, and then the effect of conveniently performing slurry coring on the stirring wall is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a double-wheel milling and deep-stirring cement-soil mixing wall slurry coring device. Background Art

[0002] The twin-wheel milling machine is a high-end, specialized piece of equipment used in underground continuous wall construction. A hydraulic system drives the two milling wheels at the bottom of the milling cutter head to rotate in opposite directions, cutting and crushing the rock while feeding. Simultaneously, the mixture of milled rock, soil, and mud is discharged from the slot, enabling continuous drilling and gaining footage. The slag-laden mud discharged to the surface is purified by multiple mud treatment devices and then returned to the slot section via a grouting pump for continued use.

[0003] The mixing wall method uses rotating blades of a mixer to mix a curing agent such as lime or cement with soft soil to reinforce the foundation. First, the rotating mixing blades are lowered to the predetermined reinforcement depth. Then, the rotating blades of the mixing shaft are lifted from the bottom up while the curing agent (cement slurry or quicklime) is pressed in. This allows the curing agent to be thoroughly mixed with the soil particles, and after a certain period of time, it solidifies into a cylindrical reinforced soil. The deep mixing method, as opposed to shallow surface mixing, is named for the deep mixing performed within the hole by drilling. The deep mixing method utilizes a deep mixing machine to forcibly mix materials such as powder or slurry with the soil, thereby generating a physical-chemical reaction within the soil, forming a reinforced body with integrity, water stability, and a certain strength. This reinforced body, combined with the original soil, forms a composite foundation, anti-seepage wall, or retaining wall.

[0004] After the mixing wall is completed, its wall strength, anti-seepage performance and wall quality need to be tested. The mixing wall is underground. In order to obtain data on the mixing wall, it is necessary to drill holes in the underground mixing wall to take samples. However, the traditional drilling core tube has no drainage structure inside, which causes the inside to become muddy after coring, making it impossible to test the mixing wall. For this reason, we designed a double-wheel milling deep mixing cement soil mixing wall slurry coring device to facilitate coring testing of the double-wheel milling deep mixing cement soil mixing wall. Utility Model Content

[0005] The purpose of the utility model is to provide a double-wheel milling deep-stirring cement soil mixing wall slurry coring device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-wheel milling deep-mixing cement-soil mixing wall slurry coring device, comprising a connecting pipe connected to the top motor of the drilling machine, the bottom of the connecting pipe is threadedly connected to a connecting head, the bottom end of the connecting head is provided with a coring pipe, and the coring pipe includes a positive pipe and a reverse pipe, the inner top wall of the positive pipe is provided with a semi-circular sphere, and the inner top side wall of the positive pipe is provided with an arc hole, the inner wall of the arc hole is provided with a filter plate, the front top of the positive pipe is provided with a threaded hole, positioning strips are provided on both sides of the front of the positive pipe, and a positioning groove compatible with the positioning strip is provided on the back of the reverse pipe, and an arc plate is provided on the side of the positive pipe.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Preferably, a circular groove that is compatible with the connecting head is opened at the bottom of the connecting pipe, and the bottom end of the connecting pipe overlaps with the top end of the core pipe. By setting the connecting pipe, the connecting head and the core pipe, it is convenient to drill holes and take cores on the mixing wall after deep mixing of cement soil by double-wheel milling, detect and collect detailed mixing data inside the mixing wall, and facilitate the normal construction of the subsequent mixing wall.

[0009] Preferably, the front of the connector and the bottom of the front of the connecting tube are both provided with screw holes of the same diameter, and the shape of the connector is cylindrical. The connector is divided into two semi-cylinders, and the two semi-cylindrical connectors are fixedly connected to the top of the positive tube and the reverse tube respectively. By setting up two semi-cylindrical connectors, it is convenient to subsequently close and assemble the positive tube and the reverse tube, and it is also convenient to disassemble the core tube for sampling in subsequent coring.

[0010] Preferably, arc holes are provided on both sides of the inner top walls of the positive tube and the reverse tube, and filter plates are provided on the inner walls of the four arc holes. By providing arc holes and filter plates on both sides of the positive tube and the reverse tube, it is convenient for the core sampling tube to squeeze and filter the liquid inside the tube when taking samples of the stirring wall, and it is also convenient to empty the air in the tube, which is convenient for subsequent coring of the stirring wall.

[0011] Preferably, the specifications and models of the positive tube and the reverse tube are the same, and threaded holes of the same diameter are provided on both sides of the front of the positive tube and the reverse tube. By setting threaded holes on the front of the positive tube and the reverse tube, it is convenient to fix the positive tube and the reverse tube together through locking bolts to form a complete core tube.

[0012] Preferably, the sides of the positive tube and the reverse tube are fixedly connected with arc plates, and the sides of the positive tube and the reverse tube away from the arc plates are provided with arc grooves adapted to the arc plates. By arranging arc plates on the sides of the positive tube and the reverse tube, the positive tube and the reverse tube can be more tightly connected.

[0013] Beneficial effects

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] The utility model is to carry out core sampling of the mixing wall two weeks after the completion of the mixing wall, so that the drilling machine drives the core sampling tube through multiple connecting tubes to inject water and sample the cores at different depths of the mixing wall; by arranging a positioning strip at the connection between the positive tube and the reverse tube, it is convenient for the positive tube and the reverse tube to be snap-connected and form the core sampling tube; by arranging arc holes and filter plates on both sides of the core sampling tube, it is convenient to filter excess liquid during the process of coring the mixing wall, so that the sample core of the mixing wall can be compacted in the tube and convenient for subsequent removal and detection, thereby achieving the effect of facilitating the slurry coring detection of the mixing wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-section structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the top-sectional structure of the utility model;

[0019] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.

[0020] In the figure: 1, connecting pipe; 2, connecting head; 3, core tube; 301, positive tube; 302, reverse tube; 4, semi-circular ball; 5, arc hole; 6, filter plate; 7, threaded hole; 8, positioning strip; 9, positioning groove; 10, arc plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4The utility model provides a technical solution: a double-wheel milling deep-mixing cement soil mixing wall slurry coring device, comprising a connecting pipe 1 connected to the top motor of the drilling machine, the bottom of the connecting pipe 1 is threadedly connected to a connecting head 2, and the bottom end of the connecting head 2 is provided with a coring pipe 3, and the bottom of the connecting pipe 1 is provided with a circular groove adapted to the connecting head 2, and the bottom end of the connecting pipe 1 is overlapped with the top end of the coring pipe 3. By arranging the connecting pipe 1, the connecting head 2 and the coring pipe 3, it is convenient to drill and coring on the mixing wall after the double-wheel milling deep-mixing cement soil, detect and collect detailed mixing data inside the mixing wall, and facilitate the normal construction of the subsequent mixing wall.

[0023] The core sampling tube 3 includes a positive tube 301 and a reverse tube 302. The front of the connector 2 and the bottom of the front of the connecting tube 1 are both provided with screw holes of the same diameter, and the shape of the connector 2 is cylindrical. The connector 2 is divided into two semi-cylinders. The two semi-cylindrical connectors 2 are fixedly connected to the top of the positive tube 301 and the reverse tube 302 respectively. By setting up two semi-cylindrical connectors 2, it is convenient to subsequently close and assemble the positive tube 301 and the reverse tube 302, and it is also convenient to disassemble the core sampling tube 3 for sampling in subsequent coring.

[0024] The inner top wall of the positive tube 301 is provided with a semicircular ball 4, which is convenient for diverting the slurry inside the core sampling tube 3 through the semicircular ball 4, and the inner top side wall of the positive tube 301 is provided with an arc hole 5, and the inner wall of the arc hole 5 is provided with a filter plate 6. Arc holes 5 are provided on both sides of the inner top wall of the positive tube 301 and the reverse tube 302, and the inner walls of the four arc holes 5 are provided with filter plates 6. By providing arc holes 5 and filter plates 6 on both sides of the positive tube 301 and the reverse tube 302, it is convenient for the core sampling tube 3 to squeeze and filter the liquid inside the tube when taking the stirring wall sample, and it is also convenient to empty the air in the tube, which is convenient for subsequent coring of the stirring wall.

[0025] A threaded hole 7 is provided at the top of the front side of the positive tube 301. The specifications and models of the positive tube 301 and the reverse tube 302 are the same, and threaded holes 7 of the same diameter are provided on both sides of the front side of the positive tube 301 and the reverse tube 302. By providing threaded holes 7 on the front sides of the positive tube 301 and the reverse tube 302, it is convenient to fix the positive tube 301 and the reverse tube 302 together by locking bolts to form a completed core tube 3.

[0026] Positioning strips 8 are provided on both sides of the front of the positive tube 301, and a positioning groove 9 adapted to the positioning strips 8 is provided on the back of the reverse tube 302. An arc plate 10 is provided on the side of the positive tube 301. The sides of the positive tube 301 and the reverse tube 302 are fixedly connected with the arc plate 10, and an arc groove adapted to the arc plate 10 is provided on the side of the positive tube 301 and the reverse tube 302 away from the arc plate 10. By arranging the arc plates 10 on the sides of the positive tube 301 and the reverse tube 302, the positive tube 301 and the reverse tube 302 can be more tightly connected.

[0027] In this embodiment, core sampling of the mixing wall is carried out two weeks after the completion of the mixing wall, so that the drilling machine drives the core sampling tube 3 through multiple connecting tubes 1 to perform water injection and core sampling at different depths of the mixing wall. By providing a positioning strip 8 at the connection between the positive tube 301 and the reverse tube 302, it is convenient for the positive tube 301 and the reverse tube 302 to be snapped together to form the core sampling tube 3. By providing arc holes 5 and filter plates 6 on both sides of the core sampling tube 3, it is convenient to filter excess liquid during the process of coring the mixing wall, so that the sample core of the mixing wall can be compacted in the tube and convenient for subsequent removal and testing, thereby achieving the effect of facilitating slurry coring of the mixing wall.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-wheel milling deep mixing cement soil mixing wall slurry coring device, characterized by: The invention comprises a connecting pipe (1) connected to a motor at the top of a drilling machine, wherein the bottom of the connecting pipe (1) is threadedly connected to a connecting head (2), the bottom end of the connecting head (2) is provided with a core tube (3), and the core tube (3) comprises a positive tube (301) and a reverse tube (302), the inner top wall of the positive tube (301) is provided with a semicircular sphere (4), and the inner top side wall of the positive tube (301) is provided with an arc hole (5), the inner wall of the arc hole (5) is provided with a filter plate (6), the front top of the positive tube (301) is provided with a threaded hole (7), both sides of the front of the positive tube (301) are provided with positioning strips (8), and the back of the reverse tube (302) is provided with a positioning groove (9) adapted to the positioning strip (8), and the side of the positive tube (301) is provided with an arc plate (10).

2. A double-wheel milling deep mixing cement soil mixing wall slurry coring device according to claim 1, characterized in that: A circular groove adapted to the connector (2) is provided at the bottom of the connecting tube (1), and the bottom end of the connecting tube (1) is overlapped with the top end of the core tube (3).

3. The double-wheel milling deep mixing cement soil mixing wall slurry coring device according to claim 1, characterized in that: The front of the connector (2) and the bottom of the front of the connecting tube (1) are both provided with screw holes of the same diameter, and the connector (2) is cylindrical in shape. The connector (2) is divided into two semi-cylinders, and the two semi-cylinder connectors (2) are fixedly connected to the top of the positive tube (301) and the reverse tube (302), respectively.

4. The double-wheel milling deep mixing cement soil mixing wall slurry coring device according to claim 1, characterized in that: Circular arc holes (5) are provided on both sides of the inner top walls of the positive tube (301) and the reverse tube (302), and filter plates (6) are provided on the inner walls of the four circular arc holes (5).

5. The double-wheel milling deep mixing cement soil mixing wall slurry coring device according to claim 1, characterized in that: The specifications and models of the positive tube (301) and the reverse tube (302) are the same, and threaded holes (7) of the same diameter are provided on both sides of the front of the positive tube (301) and the reverse tube (302).

6. The double-wheel milling deep mixing cement soil mixing wall slurry coring device according to claim 1, characterized in that: The sides of the positive tube (301) and the reverse tube (302) are fixedly connected to the arc plate (10), and the sides of the positive tube (301) and the reverse tube (302) away from the arc plate (10) are both provided with arc grooves adapted to the arc plate (10).

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