Foundation pit water stopping mechanism

Abstract

The utility model discloses a foundation pit water stopping mechanism which comprises a foundation pit, a second retaining wall is arranged on the periphery of the foundation pit, a first retaining wall is arranged on the periphery of the second retaining wall, a water stopping curtain is arranged on the periphery of the first retaining wall, a middle cavity is formed between the first retaining wall and the second retaining wall, supporting columns are installed at the four corners in the middle cavity, and the supporting columns are arranged in the middle cavity. Water containing impurities and silt in the foundation pit is pumped out through the impurity pump and pumped into the middle cavity through the connecting pipe and the inlet pipe which are connected with the impurity pump, and then the water is filtered twice through the first filter screen and the second filter screen; and water with impurities and silt filtered out becomes clean and is stored at the bottom of the middle cavity for reuse, in this way, water in the foundation pit can be conveniently stopped, pumped out and filtered, and the foundation pit water stopping mechanism is convenient to operate and high in efficiency and has the impurity and silt filtering function.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a foundation pit water stopping mechanism. Background Art

[0002] At present, in the field of construction, foundation pit refers to the space below the ground excavated for the construction of building foundations and basements. Through the excavation of the foundation pit, the foundation construction work can be carried out according to the position specified by the design. In order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit, foundation pit support measures are usually adopted around and inside the foundation pit to support, reinforce and protect the side walls, bottom of the foundation pit and the surrounding environment, so that the foundation of the later construction is more stable. In addition, during the excavation of the foundation pit, when the groundwater level is higher than the excavation bottom, the groundwater will seep into the foundation pit, and the foundation pit is prone to water in the rainy season and flood season. Therefore, a foundation pit water-stopping mechanism needs to be set around the foundation pit. Since the traditional method of foundation pit water-stopping is mostly to use the method of multi-hole rotary spraying between piles, the overall convenience is not high, and the impurities and sediment in the water cannot be filtered at the same time during the water-stopping process, which increases the waste of water resources. Utility Model Content

[0003] The purpose of the utility model is to provide a foundation pit water-stopping mechanism to solve the problem raised in the above-mentioned background technology that the traditional method of foundation pit water-stopping mostly utilizes the method of multi-hole rotary spraying between piles, which is not very convenient to use as a whole, and cannot filter impurities and sediment in the water at the same time during the water-stopping process, thereby increasing the waste of water resources.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit water-stopping mechanism comprises a foundation pit, a second retaining wall is arranged on the outer periphery of the foundation pit, a first retaining wall is arranged on the outer periphery of the second retaining wall, a water retaining curtain is arranged on the outer periphery of the first retaining wall, a middle cavity is formed between the first retaining wall and the second retaining wall, support columns are installed at the four corners of the middle cavity, the middle and upper parts of the four support columns respectively penetrate the four corners of the second filter screen, the tops of the four support columns are clamped with clamping columns, the lower parts of the four clamping columns respectively penetrate the four corners of the first filter screen, the right side of the middle cavity is connected with an inlet pipe, the left inner part of the inlet pipe is connected with the right end of the connecting pipe, the left end of the connecting pipe is connected with the right side of the impurity pump, the bottom of the impurity pump is connected with the top end of the thick pipe, the bottom end of the thick pipe penetrates the buckle cover and extends downward, submersible motors are installed on the front and rear sides of the inner part of the buckle cover, and the output ends of the two submersible motors are fixedly connected to the corresponding bladed spiral rods respectively.

[0005] As an optimal technical solution of the utility model, the bottom of the right rear end of the middle cavity is connected to the right end of the suction tube, the left end of the suction tube is connected to the right side of the submersible pump, the top of the submersible pump is connected to the bottom of the outlet pipe, and the right end of the outlet pipe extends to the right side of the outer periphery of the water retaining curtain.

[0006] As a preferred technical solution of the utility model, top blocks are sleeved on the four support columns at the four bottom corners of the second filter screen.

[0007] As a preferred technical solution of the utility model, the exteriors of the two submersible motors are both provided with sealing shells.

[0008] As a preferred technical solution of the utility model, a curved trough box is installed at the inner rear of the second retaining wall, and a plurality of first through pipes and second through pipes are equidistantly distributed on the front and rear sides of the bottom of the curved trough box.

[0009] As a preferred technical solution of the utility model, a multi-hole rotary spraying mechanism is installed on the left side of the bottom end of the foundation pit.

[0010] As a preferred technical solution of the present utility model, the first filter screen and the second filter screen are both made of stainless steel.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The water containing impurities and silt in the foundation pit is pumped out through the impurity pump, and pumped into the middle cavity through the connecting pipe and the inlet pipe connected to the impurity pump, and then filtered twice through the first filter net and the second filter net. The water filtered out of impurities and silt becomes clean and is stored at the bottom of the middle cavity for reuse. In this way, the water in the foundation pit can be conveniently pumped out and filtered. When pumping water in the foundation pit, two submersible motors are added to drive the spiral rod with blades to rotate, which reduces the accumulation of impurities and silt in the bottom water. The first retaining wall and the second retaining wall play a protective role on the foundation pit blades, thereby making the foundation pit water-stopping mechanism easy to operate, efficient and with the function of filtering impurities and silt;

[0013] 2. Use a submersible pump to pump out the water inside the middle cavity and discharge it to the outside of the foundation pit through a drainage pipe, thus reducing the waste of water resources for secondary use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a diagram showing the internal structure of the utility model;

[0015] Figure 2 It is a cutaway stereogram of the utility model;

[0016] Figure 3 It is a top perspective view of the utility model;

[0017] Figure 4 It is a main perspective view of the utility model.

[0018] In the figure: 1, foundation pit; 2, multi-hole rotary spraying mechanism; 3, first retaining wall; 4, second retaining wall; 5, middle cavity; 6, water retaining curtain; 7, inlet pipe; 8, connecting pipe; 9, impurity pump; 10, thick pipe; 11, buckle cover; 12, submersible motor; 13, bladed spiral rod; 14, sealing shell; 15, suction pipe; 16, submersible pump; 17, outlet pipe; 18, first filter screen; 19, second filter screen; 20, support column; 21, clamping column; 22, top block; 23, curved arc trough box; 24, first through pipe; 25, second through pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-4 The utility model provides a foundation pit water stopping mechanism, including a foundation pit 1, a second retaining wall 4 is arranged on the outer periphery of the foundation pit 1, a first retaining wall 3 is arranged on the outer periphery of the second retaining wall 4, a water retaining curtain 6 is arranged on the outer periphery of the first retaining wall 3, a middle cavity 5 is formed between the first retaining wall 3 and the second retaining wall 4, support columns 20 are installed at the four corners of the middle cavity 5, the middle and upper parts of the four support columns 20 respectively penetrate the four corners of the second filter screen 19, the tops of the four support columns 20 are clamped with clamping columns 21, the lower parts of the four clamping columns 21 respectively penetrate the four corners of the first filter screen 18, the right side of the middle cavity 5 is connected with an inlet pipe 7, the left inner part of the inlet pipe 7 is connected with the right end of the connecting pipe 8, the left end of the connecting pipe 8 is connected with the right side of the impurity pump 9, the bottom of the impurity pump 9 is connected with the top end of the thick pipe 10, the bottom end of the thick pipe 10 penetrates the buckle cover 11 and extends downward, the front and rear sides of the inner part of the buckle cover 11 are installed with submersible motors 12, the output ends of the two submersible motors 12 are respectively connected to the corresponding belt The blade spiral rod 13 is fixedly connected, and the water containing impurities and silt inside the foundation pit 1 is first pumped out through the impurity pump 9, and is pumped into the middle cavity 5 through the connecting pipe 8 and the inlet pipe 7 connected to the impurity pump 9, and then filtered twice through the first filter screen 18 and the second filter screen 19. The water filtered out of impurities and silt becomes clean and is stored at the bottom of the middle cavity 5 for reuse. In this way, the water in the foundation pit 1 can be conveniently pumped out and filtered, and the first filter screen 18 is installed on the clamping column 21 and the second filter screen 19 is installed on the support column 20. The clamping column 21 is clamped on the support column 20, so that the first filter screen 18 and the second filter screen 19 are easy to disassemble, and two submersible motors 12 are added when extracting water from the foundation pit 1 to drive the blade spiral rod 13 to rotate, thereby reducing the accumulation of impurities and silt in the bottom water, and the first retaining wall 3 and the second retaining wall 4 play a protective role on the foundation pit 1.

[0021] The bottom of the right rear end of the middle cavity 5 is connected to the right end of the suction pipe 15, the left end of the suction pipe 15 is connected to the right side of the submersible pump 16, the top of the submersible pump 16 is connected to the bottom of the outlet pipe 17, and the right end of the outlet pipe 17 extends to the right side of the outer periphery of the water retaining curtain 6. The inside of the middle cavity 5 is filtered by the first filter net 18 and the second filter net 19, so that the water inside the middle cavity 5 becomes clean and free of impurities, and then the water inside the middle cavity 5 is pumped out by the submersible pump 16 and discharged to the outside of the foundation pit 1 through the discharge pipe 17, thereby reducing the waste of water resources for secondary use.

[0022] Top blocks 22 are sleeved on the four corners of the bottom of the second filter screen 19 on the four support columns 20 . The top blocks 22 arranged at four angles support the second filter screen 19 and facilitate the removal of the second filter screen 19 from the support columns 20 .

[0023] The two submersible motors 12 are both covered with a sealing shell 14 , which protects the submersible motors 12 .

[0024] A curved arc trough box 23 is installed at the inner rear part of the second retaining wall 4, and a plurality of first through pipes 24 and second through pipes 25 are equidistantly distributed on the front and rear sides of the bottom of the curved arc trough box 23. By adding the curved arc trough box 23, the accumulated water in the foundation pit 1 is stored, and by increasing the fluidity of the first through pipes 24 and the second through pipes 25, the damage caused by the scouring of the accumulated water inside the foundation pit 1 is reduced.

[0025] A multi-hole jet-jet mechanism 2 is installed on the left side of the bottom end of the foundation pit 1. Drilling operation: place the jet-jet drill at the position where the hole needs to be drilled, and then use the power provided by the hydraulic system to press the drill rod and the drill bit down in the vertical direction to start the drilling operation; Water jet principle: the jet-jet drill injects high-pressure water jets into the rock formation through the water jet device. The high-pressure water jet can effectively break the rock and form cutting force, which is convenient for subsequent drilling operations; Slag discharge principle: while drilling, the jet-jet drill injects water jets into the bottom of the hole through the conveying pipe inside the drill rod. Under the action of the jet, the rock cuttings will be sucked into the pipe inside the drill pipe together with the water, and transported to the ground through the pipe, thereby realizing the function of quickly discharging the rock cuttings; Cutting principle: The design feature of the drill bit is that it has a rotary cutting function, and uses the high-speed rotating drill pipe to drive the drill bit to cut the rock. At the same time, the water injection holes around the drill bit will continuously provide cooling and lubricating water flow to the cutting area, reduce friction heat, and extend the service life of the drill bit. The rotary jet drilling rig can efficiently perform drilling operations, quickly remove rock cuttings, and improve drilling efficiency. The first filter 18 and the second filter 19 are both made of stainless steel and have high corrosion resistance.

[0026] In the utility model, the water containing impurities and silt in the foundation pit 1 is first pumped out by the impurity pump 9, and is pumped into the middle cavity 5 through the connecting pipe 8 and the inlet pipe 7 connected to the impurity pump 9, and then filtered twice by the first filter screen 18 and the second filter screen 19. The water filtered out of impurities and silt becomes clean and is stored at the bottom of the middle cavity 5 for reuse. In this way, the water in the foundation pit 1 can be conveniently pumped out and filtered, and two submersible motors 12 are added to drive the bladed spiral rod 13 to rotate when pumping water in the foundation pit 1, thereby reducing the accumulation of impurities and silt in the bottom water. The first retaining wall 3 and the second retaining wall 4 play a protective role on the foundation pit 1, thereby making the foundation pit water-stopping mechanism easy to operate, efficient and with the function of filtering impurities and silt.

[0027] The water inside the middle cavity 5 is pumped out by a submersible pump 16 and discharged to the outside of the foundation pit 1 through a drain pipe 17, thereby reducing the waste of water resources for secondary use and reducing the waste of water resources.

Claims

1. A foundation pit water stopping mechanism, comprising a foundation pit (1), characterized in that: The outer periphery of the foundation pit (1) is provided with a second retaining wall (4), the outer periphery of the second retaining wall (4) is provided with a first retaining wall (3), the outer periphery of the first retaining wall (3) is provided with a water retaining curtain (6), a middle cavity (5) is formed between the first retaining wall (3) and the second retaining wall (4), support columns (20) are installed at the four corners of the middle cavity (5), the middle and upper parts of the four support columns (20) respectively penetrate the four corners of the second filter screen (19), the tops of the four support columns (20) are clamped with clamping columns (21), and the lower parts of the four clamping columns (21) respectively penetrate the first filter screen (19), and the lower parts of the four clamping columns (21) respectively penetrate the first filter screen (19). The four corners of the filter screen (18) are connected to the right side of the middle cavity (5) with an inlet pipe (7), the left interior of the inlet pipe (7) is connected to the right end of the connecting pipe (8), the left end of the connecting pipe (8) is connected to the right side of the impurity pump (9), the bottom of the impurity pump (9) is connected to the top of the thick pipe (10), the bottom end of the thick pipe (10) passes through the buckle cover (11) and extends downward, and the front and rear sides of the buckle cover (11) are both installed with submersible motors (12), and the output ends of the two submersible motors (12) are respectively fixedly connected to the corresponding bladed spiral rods (13).

2. The foundation pit water stopping mechanism according to claim 1, characterized in that: The bottom of the right rear end of the middle cavity (5) is connected to the right end of the suction pipe (15), the left end of the suction pipe (15) is connected to the right side of the submersible pump (16), the top of the submersible pump (16) is connected to the bottom of the outlet pipe (17), and the right end of the outlet pipe (17) extends to the right side of the outer periphery of the water retaining curtain (6).

3. The foundation pit water stopping mechanism according to claim 1, characterized in that: Top blocks (22) are sleeved on the four support columns (20) at the four corners of the bottom of the second filter screen (19).

4. The foundation pit water stopping mechanism according to claim 1, characterized in that: The exteriors of the two submersible motors (12) are both covered with sealing shells (14).

5. The foundation pit water stopping mechanism according to claim 1, characterized in that: A curved trough box (23) is installed at the inner rear portion of the second retaining wall (4), and a plurality of first through pipes (24) and second through pipes (25) are equidistantly distributed on the front and rear sides of the bottom of the curved trough box (23).

6. The foundation pit water stopping mechanism according to claim 1, characterized in that: A multi-hole rotary spraying mechanism (2) is installed on the left side of the bottom end inside the foundation pit (1).

7. The foundation pit water stopping mechanism according to claim 1, characterized in that: The first filter screen (18) and the second filter screen (19) are both made of stainless steel.

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