A hole cleaning device for diaphragm wall pumping reverse circulation

Abstract

The utility model discloses a kind of underground continuous wall pump suction reverse circulation's hole cleaning device, including slurry pump, hole cleaning pipe, into slurry pipe, slurry outlet pipe and bracket, the bracket is set at underground continuous wall hole position, the slurry pump is set on bracket, the hole cleaning pipe is set on the bottom interface of slurry pump, the slurry outlet pipe is set on the side interface of slurry pump, the into slurry pipe is worn in bracket, and is fixedly connected with bracket;The utility model is by in hole support stand slurry pump, hole cleaning pipe is set below, negative pressure is generated in hole cleaning pipe when slurry pump works, make sediment suction from tank bottom, slurry pump is not needed to be placed to tank bottom, reduce the equipment occupied space, it is still able to carry out hole cleaning before and after that steel reinforcement cage is placed, improve the flexibility of construction site. Meanwhile, the device uses modular design, convenient for quick disassembly and movement.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground continuous wall construction technical field, concretely relates to a kind of underground continuous wall pump suction reverse circulation's hole cleaning device. BACKGROUND

[0002] At present, underground continuous wall hole cleaning mainly adopts two hole cleaning modes of pump suction reverse circulation and gas lift reverse circulation, wherein pump suction circulation is to place submersible pump to groove bottom, and extract groove bottom slurry and sediment, and this slurry replacement mode can only be carried out before placing reinforcement cage.But in actual operation process, from placing reinforcement cage to concrete pouring, time is often long, with the extension of time, groove bottom sediment becomes thicker and thicker, but hole cleaning cannot be continued after reinforcement cage is placed, and concrete pouring quality cannot be guaranteed.The present application improves the hole cleaning mode of pump suction reverse circulation, and provides a device that can effectively clean holes before and after placing reinforcement cage. SUMMARY

[0003] In order to solve the problems in the prior art, the utility model provides a hole cleaning device for underground continuous wall pump suction reverse circulation with reasonable structure design.

[0004] The technical scheme of the utility model is as follows:

[0005] A hole cleaning device for underground continuous wall pump suction reverse circulation, comprising a slurry pump, a hole cleaning pipe, a slurry inlet pipe, a slurry outlet pipe and a bracket, the bracket is arranged at the position of the hole of the underground continuous wall, the slurry pump is arranged on the bracket, the hole cleaning pipe is arranged on the bottom interface of the slurry pump, the slurry outlet pipe is arranged on the side interface of the slurry pump, the slurry inlet pipe is arranged on the bracket and fixedly connected with the bracket.

[0006] Further, the hole cleaning pipe comprises a plurality of standard sections and a bottom section, the standard section comprises a steel pipe and flanges arranged at both ends of the steel pipe, and the bottom section comprises a steel pipe and a flange arranged at one end of the steel pipe, and the other end of the steel pipe is in the shape of a horn.

[0007] Further, a flow meter is arranged on the slurry outlet pipe, and the flow meter is used to monitor the slurry flow rate and the amount of hole cleaning slurry in real time.

[0008] Further, a control valve is arranged on the slurry outlet pipe, and the control valve is used to adjust the slurry flow rate and pressure.

[0009] Further, a lifting ring is arranged on the bracket, which facilitates the overall lifting and moving of the device.

[0010] The utility model has the following beneficial effects:

[0011] 1) This utility model uses a mud pump erected at the borehole opening and a cleaning pipe installed below it. When the mud pump is working, it generates negative pressure in the cleaning pipe, which causes the sediment to be sucked out from the bottom of the tank. It eliminates the need to place the mud pump at the bottom of the tank, reducing the space occupied by the equipment. It also enables the cleaning of the borehole to be carried out before and after the steel cage is installed, thus improving the flexibility of the construction site.

[0012] 2) This utility model not only optimizes the construction process, but also significantly improves the hole cleaning efficiency, effectively solving the limitations of traditional hole cleaning methods in continuous wall construction; at the same time, the device adopts a modular design, which is convenient for quick disassembly and movement.

[0013] 3) This utility model installs a control valve and a flow meter on the discharge pipe of the mud pump, realizing the data-driven monitoring of pressure regulation and mud flow during the hole cleaning process; enabling operators to monitor the hole cleaning progress and effect in real time.

[0014] 4) After the hole cleaning process is completed, the lower hole cleaning pipe is removed and the mud pump can continue to be used for mud recycling during the concrete pouring process; thus, the construction resources are maximized and the construction cost is reduced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the hole-cleaning tube structure of this utility model;

[0017] In the diagram: 1. Cleaning pipe; 101. Steel pipe; 102. Flange; 2. Slurry outlet pipe; 3. Lifting ring; 4. Control valve; 5. Flow meter; 6. Slurry pump; 7. Slurry outlet pipeline; 8. Slurry inlet pipe; 9. Slurry inlet pipeline; 10. Bracket. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, a diaphragm wall pump suction reverse circulation hole cleaning device includes a mud pump 6, a hole cleaning pipe 1, a slurry inlet pipe 8, a slurry inlet pipeline 9, a slurry outlet pipe 2, a slurry outlet pipeline 7, a control valve 4, a flow meter 5, and a bracket 10.

[0020] The mud pump 6, the inlet pipe 8, and the outlet pipe 2 are all fixed on the bracket 10 to form an integrated device. The bracket 10 is equipped with lifting rings 3 for easy hoisting and movement. The design of the bracket 10 ensures the stability of the overall device and can withstand greater working pressure during construction.

[0021] The bottom of the slurry outlet pipe 2 is connected to the interface of the side of the slurry pump 6. The control valve 4 and the flow meter 6 are arranged at the position above the bracket 10 of the slurry outlet pipe 2. The valve 4 is used to adjust the slurry flow and pressure, and to ensure the circulation efficiency of the slurry in the hole cleaning process. The flow meter 6 is used to monitor the slurry flow rate and the amount of hole cleaning slurry in real time during the hole cleaning process, so as to keep the optimization of the hole cleaning efficiency.

[0022] The top of the slurry outlet pipe 2 is connected to the slurry outlet pipe 7 for slurry outlet delivery.

[0023] The slurry pump 6 is arranged on the bracket 10. The flange plate is arranged at the bottom of the pump shell of the slurry pump 6 and is connected to the flange of the hole cleaning pipe 1. The hole cleaning pipe 1 is spliced and lengthened by a plurality of standard sections, and a bottom section is arranged at the bottom. Figure 2 As shown in the figure, the standard section includes a steel pipe 101 and a flange plate 102 arranged at both ends of the steel pipe 101. The flange plates 102 are connected between adjacent standard sections. The bottom section includes a steel pipe 101 and a flange plate 102 arranged at one end of the steel pipe 101. The flange plate 102 is connected between the bottom section and the standard section. The bottom of the steel pipe 101 of the bottom section is in a trumpet shape, so as to increase the area of absorbing the sediment and improve the hole cleaning effect.

[0024] The slurry inlet pipe 8 passes through the hole of the bracket 10 and is inserted into the underground continuous wall hole. The slurry inlet pipe 8 is also connected to the slurry inlet pipe 9 for slurry inlet delivery.

[0025] Construction process:

[0026] The hole cleaning operation steps are: preparing hole cleaning⟶ installing and lowering the hole cleaning pipe section by section to the predetermined depth → installing the slurry pump → connecting the slurry inlet and outlet pipes → starting the slurry pump, adjusting the control valve and the flow meter, and starting the hole cleaning operation → continuing the hole cleaning by integral hoisting and shifting → removing the hole cleaning device after the hole cleaning operation is completed.

[0027] The device can realize hole cleaning before and after the reinforcement cage is placed. The construction method is: taking soil for trenching of the underground continuous wall⟶ wall brushing → hole cleaning → placing the reinforcement cage → detecting the thickness of the sediment → (if the thickness of the sediment is not satisfied, the device is used for secondary hole cleaning) → pouring concrete.

[0028] The hole cleaning device can clean the hole before the reinforcement cage is placed. After the reinforcement cage is placed, if the thickness of the sediment at the bottom of the trench does not meet the requirements, the device can be used for secondary hole cleaning. Because the diameter of the hole cleaning pipe of the device is D100~D160, the device can be installed in the reinforcement cage. This makes the construction more flexible. The diameter of the steel pipe can be selected according to the hole cleaning depth and the power of the slurry pump to meet the needs of different construction environments.

[0029] The above embodiments are only preferred embodiments of the present application, and are not a limitation on the technical solutions of the present application. Any technical solutions that can be realized on the basis of the above embodiments without creative labor should be considered to fall within the scope of protection of the present application.

Claims

1. A hole cleaning device for diaphragm wall pumping reverse circulation, characterized in that, The device comprises a mud pump (6), a hole cleaning pipe (1), a mud inlet pipe (8), a mud outlet pipe (2) and a bracket (10), the bracket (10) is arranged at the position of the underground continuous wall hole, the mud pump (6) is arranged on the bracket (10), the hole cleaning pipe (1) is arranged on the bottom interface of the mud pump (6), the mud outlet pipe (2) is arranged on the side interface of the mud pump (6), and the mud inlet pipe (8) is arranged on the bracket (10) and is fixedly connected with the bracket (10).

2. A hole cleaning device for diaphragm walling pump and reverse circulation according to claim 1, wherein, The hole cleaning pipe (1) comprises a plurality of standard sections and a bottom section, the standard section comprises a steel pipe (101) and a flange plate (102) arranged at both ends of the steel pipe (101), and the bottom section comprises a steel pipe (101) and a flange plate (102) arranged at one end of the steel pipe (101), and the other end of the steel pipe (101) is in a trumpet shape.

3. The hole cleaning device of claim 1, wherein, The mud outlet pipe (2) is provided with a flow meter (5), and the flow meter (5) is used for monitoring the mud flow rate and the hole cleaning mud amount in real time.

4. The hole cleaning device of claim 1, wherein, The mud outlet pipe (2) is provided with a control valve (4), and the control valve (4) is used for adjusting the mud flow rate and pressure.

5. The underground diaphragm wall hole cleaning device of claim 1, wherein, The bracket (10) is provided with a lifting ring (3), so that the device can be hoisted and moved as a whole.

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