Orifice sewage drainage device for curtain grouting drilling

Abstract

The utility model relates to the technical field of curtain grouting construction, and discloses an orifice sewage drainage device for curtain grouting drilling, which comprises a water collecting hopper of a cavity structure with an opening at the top, and a through hole matched with an orifice pipe of curtain grouting drilling to penetrate through is arranged at the center of the bottom of the water collecting hopper. A pipe opening sealing piece for preventing sewage from leaking from the through hole is further installed at the through hole, a drainage hole is formed in the side wall, and a drainage pipe connector is installed at the drainage hole. According to the orifice sewage drainage device for curtain grouting drilling, the end of an orifice pipe of curtain grouting drilling can extend into the cavity structure of the water collecting hopper through the through hole in the bottom of the water collecting hopper, meanwhile, the sealing performance is guaranteed through the pipe orifice sealing piece, and water leakage from the bottom of the water collecting hopper is prevented; during curtain grouting construction, waste water and waste slurry generated by drilling enter the cavity structure of the water collecting hopper through the orifice pipe and then are externally connected with a drainage pipeline through the drainage pipe connector, the waste water and the waste slurry are discharged into a drainage ditch in real time, and therefore the water accumulation problem of a construction gallery is avoided, and meanwhile a fire-fighting water bag does not need to be arranged.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain grouting construction, in particular to a hole mouth sewage drainage device used for curtain grouting drilling. Background Art

[0002] Curtain grouting is an engineering measure that uses grouting to fill the gaps in the foundation to form a water-blocking curtain to reduce the seepage pressure acting on the bottom of the building or reduce the seepage volume. According to different geological conditions and engineering needs, curtain grouting can be selected from top-down segmented grouting, bottom-up segmented grouting, comprehensive grouting and orifice sealing methods. The orifice sealing method and the top-down segmented drilling grouting with in-hole circulation are the most commonly used methods, and are suitable for projects with poor geological conditions, difficult grouting plugs or high anti-seepage requirements.

[0003] In order to prevent high-pressure grouting from damaging the concrete, before the curtain grouting construction, the orifice pipe is buried first, and then the drilling and grouting construction is carried out section by section. When drilling each section, the wastewater and waste slurry generated by drilling and grouting will flow back from the orifice pipe. If the water retaining device is not installed, the bottom plate of the construction corridor will be seriously flooded, which will be inconvenient to pass, unsightly, and poor on-site civilized construction. The conventional solution is to use fire water bags filled with sand, surround the drilling rig or the hole, and reserve drainage ditches. If there is a lot of backwater, the sewage will still overflow the fire water bag and cannot fully play the role of enclosure; and the water bag is heavy and difficult to transport. When encountering the construction of the middle row of curtain holes, the distance from the drainage ditch is far, and a longer distance of fire water bags needs to be laid. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a device for draining sewage from a hole during curtain grouting drilling, which solves the problem of discharging waste water and waste slurry generated by drilling and grouting.

[0005] The technical solution adopted by the utility model is:

[0006] A device for draining sewage from an orifice during curtain grouting drilling, comprising a water collecting bucket; the water collecting bucket is arranged on the ground at the location where the curtain grouting drilling is performed, and is a cavity structure with an opening at the top; a through hole is provided at the bottom center of the water collecting bucket, a drainage hole is provided on the side wall, and a drainage pipe joint is installed at the drainage hole; the orifice pipe of the curtain grouting drilling hole passes through the through hole at the bottom of the water collecting bucket, and its pipe end can extend into the cavity of the water collecting bucket; a pipe mouth seal is also installed at the through hole of the water collecting bucket to prevent sewage from leaking from the through hole.

[0007] Furthermore, the pipe mouth seal includes a pair of clips that can clamp the orifice pipe, the bottom of the clip is a semicircular plate body with a radius larger than the radius of the through hole at the bottom of the water collecting bucket, and a clamp plate is formed vertically upward on the inner edge of the semicircular plate body; a plurality of screws are arranged circumferentially at the through hole at the bottom of the water collecting bucket, and the semicircular plate bodies of the pair of clips are detachably installed at the position of the through hole at the bottom of the water collecting bucket through nuts and screws, and the clamp plates of the pair of clips are connected by bolts to clamp the outer wall of the tube body of the orifice pipe.

[0008] Furthermore, the pipe mouth seal also includes a first rubber sealing pad arranged between the semicircular plate body of the clip and the bottom plate of the water collecting hopper.

[0009] Furthermore, a second rubber sealing pad is provided at the contact point between the clamp plate and the outer wall of the tube body of the orifice tube.

[0010] Furthermore, the drainage pipe joint is connected to a drainage pipe that can extend to a drainage ditch.

[0011] Furthermore, the drainage pipeline includes a first drainage pipeline and a second drainage pipeline, the first drainage pipeline is installed between the water collecting bucket and the drainage pump, and the second drainage pipeline is installed between the drainage pump and the drainage ditch.

[0012] The beneficial effects of the utility model are:

[0013] The orifice sewage drainage device used for curtain grouting drilling can extend the orifice pipe end of the curtain grouting drilling hole into the cavity structure of the water collecting bucket through the through hole at the bottom of the water collecting bucket, and at the same time ensure the sealing through the pipe mouth seal to prevent water leakage from the bottom of the water collecting bucket; during the curtain grouting construction, the wastewater and waste slurry generated by the drilling hole is discharged into the cavity structure of the water collecting bucket through the orifice pipe, and then connected to the drainage pipeline through the drainage pipe joint, and the wastewater and waste slurry is discharged into the drainage ditch in real time, thereby avoiding the problem of water accumulation in the construction corridor, and at the same time, there is no need to lay fire water bags. The orifice sewage drainage device used for curtain grouting drilling is simple to make, easy to install, and can be reused, which is conducive to the promotion and application in curtain grouting construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the orifice sewage drainage device of the utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the orifice sewage drainage device of the utility model;

[0016] Figure 3 and Figure 4 This is a schematic diagram of the use status of the orifice sewage drainage device of the utility model;

[0017] In the figure, 1 is a water collecting bucket, 2 is a through hole, 3 is a drainage hole, 4 is a drainage pipe joint, 5 is an orifice pipe, 6 is a pipe mouth seal, 7 is a clip, 8 is a semicircular plate, 9 is a clamp plate, 10 is a screw rod, 11 is a bolt, 12 is a first rubber sealing pad, 13 is a second rubber sealing pad, 14 is a drainage pipeline, 15 is a drainage ditch, 16 is a first drainage pipeline, 17 is a second drainage pipeline, and 18 is a drainage pump. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings of the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0019] This embodiment provides a device for draining sewage from a hole during curtain grouting drilling. Figure 1 and Figure 2 As shown, the orifice sewage drainage device used for curtain grouting drilling includes a water collecting bucket 1, which is a circular cavity structure with an opening on the top. The water collecting bucket 1 has a diameter of 600 mm and is made of welded steel plates. A through hole 2 with a diameter of 200-250 mm is opened at the center of the bottom of the water bucket. The function of the through hole 2 is to allow the orifice pipe 5 of the curtain grouting drilling to pass through the bottom of the water collecting bucket 1, so that the pipe end of the orifice pipe 5 can extend into the cavity of the water collecting bucket 1; a drainage hole 3 is provided on the side wall of the water collecting bucket 1, and a drainage pipe joint 4 is welded and installed on the outside of the drainage hole 3 of the water collecting bucket 1. The function of the drainage pipe joint 4 is to connect the drainage pipeline; in addition, a pipe mouth seal 6 is also installed at the through hole 2 of the water collecting bucket 1 to prevent sewage from leaking from the through hole 2.

[0020] The pipe mouth seal 6 can be a rubber seal that can be sleeved on the orifice pipe 5 and sealed with the bottom of the water collecting bucket 1 cavity. However, the orifice pipe 5 will shake during the curtain grouting construction process; in order to ensure absolute sealing, such as Figure 2 As shown, the pipe mouth seal 6 in this embodiment includes a pair of clamps 7 that can clamp the orifice pipe 5, the bottom of the clamp 7 is a semicircular plate 8 with a radius larger than the radius of the through hole 2 at the bottom of the water collecting bucket 1, and a clamp plate 9 is formed vertically upward on the inner edge of the semicircular plate 8, and the semicircular plate 8 and the clamp plate 9 are welded to form the clamp 7.

[0021] Considering the installation of the clip 7, Figure 1 and Figure 2As shown, in this embodiment, four screws 10 are circumferentially welded at the through hole 2 at the bottom of the water collecting bucket 1, and holes for the screws 10 to pass through are opened on the semicircular plate 8 of the clamp 7, so that the semicircular plate 8 of a pair of clamps 7 can be detachably installed at the position of the through hole 2 at the bottom of the water collecting bucket 1 through nuts and screws 10; at the same time, the two sides of the clamp plate 9 of a pair of clamps 7 are connected by bolts 11, so that the pair of clamps 7 can clamp the outer wall of the orifice tube 5, thereby ensuring the sealing between the water collecting bucket 1 and the orifice tube 5. In order to increase the sealing effect, as shown in FIG. Figure 2 As shown, in this embodiment, a first rubber sealing pad 12 is added between the semicircular plate body 8 of the clamp 7 and the bottom plate of the water collecting bucket 1; at the same time, a second rubber sealing pad 13 is added at the contact point between the clamp plate 9 of the clamp 7 and the outer wall of the tube body of the orifice tube 5; the first rubber sealing pad 12 and the second rubber sealing pad 13 are used to increase the sealing effect.

[0022] The method of using the orifice sewage drainage device for curtain grouting drilling is as follows:

[0023] Before curtain grouting construction, the orifice pipe 5 is buried first, and then drilling and grouting construction is carried out section by section; Figure 3 As shown, before construction, the water collecting bucket 1 is arranged on the ground at the curtain grouting drilling site, so that the end of the orifice pipe 5 extends into the cavity of the water collecting bucket 1 through the through hole 2 at the bottom center of the water collecting bucket 1; then a pair of clips 7 are installed, and the rubber sealing pad is adjusted to ensure the sealing effect; finally, the drainage pipe 14 is connected through the drainage pipe joint 4, and the other end of the drainage pipe 14 is moved into the drainage ditch 15. At this time, the drilling and grouting construction can be carried out, and the waste water and waste slurry generated during the construction process enter the cavity of the water collecting bucket 1 from the end of the orifice pipe 5, and are discharged into the drainage ditch 15 through the drainage pipe 14 in real time, thereby solving the problem of water accumulation on the bottom plate of the construction corridor, and there is no need to lay fire water bags filled with sand. Example 2

[0024] On the basis of Example 1, when the middle row of curtain holes is constructed, the orifice pipe 5 is far away from the drainage ditch 15, so the speed of wastewater and waste slurry generated by drilling and grouting will be greater than the drainage speed, so that the wastewater and waste slurry will overflow from the cavity of the water collecting bucket 1. In order to solve this problem, Figure 4 As shown, in this embodiment, the drainage pipeline 14 is arranged in two sections, including a first drainage pipeline 16 and a second drainage pipeline 17 .

[0025] Among them, the first drainage pipe 16 is installed between the water collecting bucket 1 and the drainage pump 18, and the second drainage pipe 17 is installed between the drainage pump 18 and the drainage ditch 15; the drainage pump 18 adopts commercially purchased finished equipment. The drainage pump 18 is turned on during the drilling and grouting construction process to increase the discharge speed of wastewater and waste slurry to prevent it from overflowing from the cavity of the water collecting bucket 1.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for draining sewage from a hole during curtain grouting drilling, characterized in that: It includes a water collecting bucket; the water collecting bucket is arranged on the ground at the curtain grouting drilling hole, which is a cavity structure with an opening on the top, a through hole is opened at the bottom center of the water collecting bucket, a drainage hole is arranged on the side wall, and a drainage pipe joint is installed at the drainage hole; the orifice pipe of the curtain grouting drilling hole passes through the through hole at the bottom of the water collecting bucket, and the pipe end can extend into the cavity of the water collecting bucket; the through hole of the water collecting bucket is also installed with a pipe mouth seal to prevent sewage from leaking from the through hole.

2. The device for draining sewage from a hole during curtain grouting drilling according to claim 1, characterized in that: The pipe mouth seal includes a pair of clips that can clamp the orifice pipe, the bottom of the clip is a semicircular plate body with a radius larger than the radius of the through hole at the bottom of the water collecting bucket, and a clamp plate is formed vertically upward on the inner edge of the semicircular plate body; a plurality of screws are arranged circumferentially at the through hole at the bottom of the water collecting bucket, and the semicircular plate bodies of the pair of clips are detachably installed at the position of the through hole at the bottom of the water collecting bucket through nuts and screws, and the clamp plates of the pair of clips are connected by bolts to clamp the outer wall of the tube body of the orifice pipe.

3. The device for draining sewage from a hole during curtain grouting drilling according to claim 2, characterized in that: The pipe mouth sealing member also includes a first rubber sealing pad arranged between the semicircular plate body of the clip and the bottom plate of the water collecting hopper.

4. The device for draining sewage from a hole during curtain grouting drilling according to claim 2, characterized in that: A second rubber sealing pad is provided at the contact point between the clamp plate and the outer wall of the tube body of the orifice tube.

5. The device for draining sewage from a hole during curtain grouting drilling according to claim 1, characterized in that: The drainage pipe joint is connected with a drainage pipe which can extend to a drainage ditch.

6. The device for draining sewage from a hole during curtain grouting drilling according to claim 5, characterized in that: The drainage pipeline comprises a first drainage pipeline and a second drainage pipeline. The first drainage pipeline is installed between the water collecting bucket and the drainage pump, and the second drainage pipeline is installed between the drainage pump and the drainage ditch.

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