Device and method for improving flatness of underground continuous wall

Abstract

The invention discloses a device and method for improving the flatness of an underground continuous wall, comprising a base plate, wherein the base plate is a plate-like structure with a strip groove in the middle, and threaded through holes are provided on the base plate surface on both sides of the strip groove for nut connection; one side of the base plate is connected to a double-wheel milling machine, and the other side is connected to a boss; one side surface of the boss is a strip-shaped protruding structure, and the other side surface is provided with a step structure; the protruding structure of the boss is engaged with the strip groove of the base plate, and both sides of the boss are connected to the base plate by bolts; a plurality of hole repairing cones and a plurality of hole repairing blocks are welded on the surface of the boss; the device has the characteristics of simple structure, easy use, and can be effectively cooperated with the double-wheel milling machine on site, without the need for additional lining, thereby greatly reducing the cost while ensuring the hole repairing effect.

Description

Technical Field

[0001] The invention belongs to the field of underground continuous wall construction, and in particular relates to a device and a method for improving the flatness of an underground continuous wall. Background Art

[0002] In the process of urban underground space construction, underground continuous walls are generally used as the retaining structure of foundation pits; as buildings become deeper and deeper, the requirements for retaining structures are getting higher and higher. The verticality of the trenches formed by traditional trenching equipment and the flatness of the holes can no longer meet the construction requirements of ultra-deep ground continuous walls; the existing technology uses double-wheel milling for trenching construction. The trenching quality of the double-wheel milling is high, and the verticality of the trench holes is guaranteed, but the surface flatness of the trench holes is not good. For walls that use underground continuous walls as permanent structures, lining is also required, which increases the construction steps and construction costs. Therefore, it is necessary to design a device and method for improving the flatness of underground continuous walls, by repairing holes on the inner wall of the permanent structure wall, thereby improving its flatness, and no additional lining is constructed for the underground continuous wall under construction. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a device and method for repairing and leveling slot holes, which effectively improves the levelness of the slot holes formed by double-wheel milling. It has the characteristics of simple structure, convenient use, and can be effectively matched with the double-wheel milling on site, without the need for additional lining, which greatly reduces the cost while ensuring the hole repairing effect.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A device and method for grooving and repairing holes in underground continuous walls, comprising a base plate, one side of which is welded and fixed on a double-wheel milling machine, and the other side is connected to a boss via a nut; countersunk holes on both sides of the boss are connected to the base plate via nuts, a repairing cone and a repairing block are welded to the upper part of the boss; the repairing cone is welded to the top of the upper step of the boss; and the repairing block is welded to the secondary step of the boss.

[0006] Preferably, the substrate is a concave plate structure with threaded through holes on both sides of the substrate.

[0007] Furthermore, the recessed plate has a depth of 25 mm, and the threaded hole of the base plate is an M14 threaded through hole.

[0008] Preferably, the lower part of the boss is a convex plate structure, the upper part is a step structure, and both sides of the boss are countersunk hole structures.

[0009] Furthermore, the convex plate is 25mm deep and cooperates with the base plate to become the main force-bearing part during the hole repair process. A hole repair cone is welded on the top of the step structure, and a hole repair block is welded on the secondary step. The countersunk holes on both sides of the boss are used for nut connection, and the nut head is located in the countersunk hole.

[0010] Preferably, the repairing cone is a combined structure of a cylinder and a cone, and is welded to the upper part of the boss.

[0011] Furthermore, there are six hole repairing cones evenly distributed on the top of the boss to achieve the hole repairing function.

[0012] Preferably, the hole repairing block is a conical block, which is welded on the secondary step at the upper part of the boss.

[0013] Furthermore, there are four hole repairing blocks for realizing the hole repairing function.

[0014] Preferably, the above-mentioned method for improving the flatness of an underground continuous wall comprises the following steps:

[0015] S1, the bottom surface of the base plate is welded to the side surface of the double-wheel milling machine, and the boss is connected to the base plate through a nut when repairing the hole;

[0016] S2, start the double-wheel milling machine, the rotation of the double-wheel milling machine drives the hole repairing device to rotate, and the hole repairing cone and the hole repairing block on the hole repairing device form a circular hole repairing track as they rotate;

[0017] S3, the double-wheel milling machine rotates at a certain speed and sinks to repair the hole, and the repair cone and the repair block are dragged from the circular track to a spiral repair track;

[0018] S4, controls the relationship between the rotation speed and the sinking speed, so that the spiral hole repairing trajectory shrinks to form a hole repairing on the entire surface; several hole repairing devices are installed on both sides of the double-wheel milling machine to improve the hole repairing efficiency.

[0019] The beneficial effects of the present invention are:

[0020] This solution utilizes the milling equipment required for underground continuous wall construction, namely the double-wheel milling machine as the power mechanism of the entire device, and no independent power mechanism is required to drive it, which effectively simplifies the structure of the equipment and reduces the cost of use; the device is simple to use and easy to install and disassemble; the use of the device effectively improves the flatness of the slot hole and can avoid the step of additionally applying an inner lining to the inner wall of the permanent ground-connected wall, thereby reducing construction costs and shortening construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the hole repairing device;

[0022] Figure 2 is a schematic diagram of the structure of the substrate;

[0023] Figure 3 is a schematic diagram of the structure of the boss;

[0024] Figure 4 It is the structural schematic diagram of the hole repairing cone;

[0025] Figure 5 It is a structural schematic diagram of the hole repair block;

[0026] The reference numerals in the figure are: base plate 1, threaded through hole 11, boss 2, hole repairing block 3, hole repairing cone 4. DETAILED DESCRIPTION

[0027] Embodiment 1:

[0028] like Figure 1~Figure 5 As shown, a device and method for improving the flatness of underground continuous walls include a base plate 1, one side of the base plate 1 is welded and fixed on a double-wheel milling machine, and one side is connected to a boss 2 through a nut. The countersunk holes on both sides of the boss 2 are connected to the base plate 1 through nuts, and six repairing cones 4 and four repairing blocks 3 are welded on the upper part of the boss 2. The repairing cone 4 is welded to the top of the upper step of the boss; the repairing block 3 is welded to the secondary step of the boss.

[0029] Preferably, the substrate is a concave plate structure with threaded through holes on both sides of the substrate.

[0030] Furthermore, the bottom of the base plate is welded with the double-wheel milling machine to play the role of fixing the base.

[0031] Preferably, the lower part of the boss is a convex plate structure, the upper part is a step structure, and both sides of the boss are countersunk hole structures.

[0032] Furthermore, the convex plate cooperates with the base plate and becomes the main force-bearing part in the hole repairing process. A hole repairing cone is welded on the top of the step structure, and a hole repairing block is welded on the secondary step. The countersunk holes on both sides of the boss are used for nut connection, and the nut heads are located in the countersunk holes. The boss and the base plate are connected and fixed by nuts, so that the entire hole repairing device is fixed on the double-wheel milling machine.

[0033] Preferably, the repairing cone is a combined structure of a cylinder and a cone.

[0034] Furthermore, there are six hole repairing cones evenly distributed on the top of the boss to achieve the hole repairing function.

[0035] Preferably, the hole repairing block is a conical block.

[0036] Furthermore, there are four hole repairing blocks for realizing the hole repairing function.

[0037] Embodiment 2:

[0038] The method of using the above-mentioned underground continuous wall slotting and hole repairing device is as follows:

[0039] S1, multiple base plates 1 are fixed on both sides of the double-wheel milling machine by welding through reasonable arrangement.

[0040] S2, align the boss 2 and the base plate 1 through the countersunk hole and the threaded hole, insert the nut and tighten it, and complete the installation of the entire hole repairing device.

[0041] S3, the double-wheel milling machine adjusts its position so that the milling head is aligned with the slot, starts the double-wheel milling machine, sets the double-wheel milling machine speed and sinking speed, and the double-wheel milling machine sinks to start drilling.

[0042] S4, the double-wheel milling machine rotates to drive the hole repairing device to rotate, and the hole repairing cone 4 and the hole repairing block 3 on the hole repairing device form a circular hole repairing track as they rotate. The double-wheel milling machine rotates at a certain speed and sinks to repair the hole. The hole repairing cone 4 and the hole repairing block 3 are dragged by the circular track to form a spiral hole repairing track. The relationship between the rotation speed and the sinking speed is controlled to shrink the spiral hole repairing track to form a hole repairing the entire surface. During the hole repairing process, the hole repairing cone scrapes off the protruding part of the groove wall to make the groove wall smooth, and the hole repairing block squeezes the groove wall to make the groove wall smooth.

[0043] S5, after the hole is repaired to the bottom of the groove, stay at the bottom of the groove for a while and then lift up the double-wheel milling machine to continue repairing the hole until the hole repair is completed.

[0044] The above-mentioned embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The embodiments and features in the embodiments in this application can be combined with each other in any way without conflict. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A hole repairing method based on a device for improving the flatness of underground continuous walls, characterized in that: The device for improving the flatness of an underground continuous wall comprises a base plate (1), the base plate (1) being a plate-like structure with a strip groove in the middle, and threaded through holes (11) for nut connection are provided on the surface of the base plate (1) on both sides of the strip groove; one side of the base plate (1) is connected to a double-wheel milling machine, and the other side is connected to a boss (2); one side of the surface of the boss (2) is a strip-shaped raised structure, and the other side of the surface is provided with a step structure; the raised structure of the boss (2) is engaged with the strip groove of the base plate (1), and both sides of the boss (2) are connected to the base plate (1) by bolts; a plurality of hole repairing cones (4) and a plurality of hole repairing blocks (3) are welded to the surface of the boss (2); The hole repairing method includes the following steps: S1, the bottom surface of the base plate (1) is welded to the side surface of the double-wheel milling machine, and the boss (2) is connected to the base plate (1) through a nut when repairing the hole; S2, starting the double-wheel milling machine, the rotation of the double-wheel milling machine drives the hole repairing device to rotate, and the hole repairing cone (4) and the hole repairing block (3) on the hole repairing device form a circular hole repairing trajectory as they rotate; S3, the double-wheel milling machine rotates at a certain speed and sinks to repair the hole, and the repair cone (4) and the repair block (3) are dragged from a circular track to a spiral repair track; S4, controls the relationship between the rotation speed and the sinking speed, so that the spiral hole repairing trajectory shrinks to form a hole repairing on the entire surface; several hole repairing devices are installed on both sides of the double-wheel milling machine to improve the hole repairing efficiency.

2. The hole repairing method according to claim 1, characterized in that: The height of the upper step of the boss (2) is determined by the hole repair size and the double-wheel milling size; the boss (2) has countersunk holes on both sides for nut connection, and the nut heads are located in the countersunk holes.

3. The hole repairing method according to claim 1, characterized in that: The repairing cone (4) is welded to the top of the step on the upper part of the boss (2); the repairing cone (4) is a combination of a cylinder and a cone.

4. The hole repairing method according to claim 1, characterized in that: The hole repairing block (3) is welded to the secondary step on the upper part of the boss (2); the hole repairing block (3) is a conical block.

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