Deep foundation pit exploratory hole gushing water centralized pumping drainage device

Abstract

The utility model relates to the technical field of exploratory hole pumping and drainage, and discloses a deep foundation pit exploratory hole gushing water centralized pumping and drainage device which comprises a water stop steel plate and a basement bottom plate, a through opening is formed in the middle of the upper end of the water stop steel plate, a U-shaped frame plate is welded in the through opening, a flat plate is welded to the right end of the U-shaped frame plate, and the flat plate is welded to the right end of the U-shaped frame plate. Two mounting holes are formed in the upper portion of the right end of the flat plate, a fixing mechanism is mounted on the upper portion of the outer surface of the flat plate through the two mounting holes, an exploration hole site is formed in the middle of the basement bottom plate, and the lower portion of the outer surface of the U-shaped frame plate and the lower portion of the outer surface of the flat plate are both inserted into the exploration hole site. And dense meshes are arranged at the joints of the exploration hole positions and the U-shaped frame plate and the flat plate. The deep foundation pit exploratory hole gushing water centralized pumping drainage device is short in pumping period, low in pumping cost, convenient and fast to operate, suitable for the situation of large water pressure difference, good in leaking stoppage effect and suitable for being widely used.

Description

Technical Field

[0001] The utility model relates to the technical field of exploration hole pumping and drainage, in particular to a device for concentrated water gushing out of deep foundation pit exploration holes. Background Art

[0002] During the construction of deep foundation pits, when excavation reaches the designed elevation, due to the large head difference between the inside and outside of the pit, the complexity of the soil layer and construction factors, water may sometimes gush out of the remaining exploration holes, making it impossible to continue construction of the foundation pit or basement, and causing major safety hazards to the deep foundation pit and the surrounding environment. At present, there are several methods to deal with water gush from deep foundation pit exploration holes: one is the bottom water dewatering method, the second is the sand bag or earth surrounding weir, and the third is grouting to seal the exploration hole. The first method is to lead the gushing water into a water pit, set a water pump with corresponding flow rate and well bottom depth according to the unit gushing water volume, and discharge the gushing water out of the pit through the water pump. The disadvantages of this method are long pumping cycle, high pumping cost and inconvenient operation; the second method is mostly used for pipe burst rescue of embankments, which is suitable for situations where the water pressure difference is not too large. However, the head difference between the inside and outside of the pit in a deep foundation pit is large, which will cause the sand bag or earth cofferdam to be too high, and the cofferdam itself also has the risk of collapse; the third method seems simple and easy, but when the gushing water is caused by pressurized water, the water pressure is high and the plugging is easy to fail. Therefore, we have launched a centralized pumping and drainage device for gushing water from deep foundation pit exploration holes. Utility Model Content

[0003] The main purpose of the utility model is to provide a device for centralized pumping and drainage of water gushing from an exploration hole in a deep foundation pit, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A device for centralized pumping and drainage of water gushing from an exploration hole in a deep foundation pit comprises a waterstop steel plate and a basement floor plate, a through opening is provided in the middle of the upper end of the waterstop steel plate, a U-shaped frame plate is welded inside the through opening, a flat plate is welded to the right end of the U-shaped frame plate, two mounting holes are provided in the upper right end of the flat plate, a fixing mechanism is installed on the upper outer surface of the flat plate through the two mounting holes, an exploration hole is provided in the middle of the basement floor plate, and the lower outer surface of the U-shaped frame plate and the lower outer surface of the flat plate are both inserted into the interior of the exploration hole, a dense mesh is provided at the connection between the exploration hole, the U-shaped frame plate and the flat plate, the interior of the exploration hole is filled with in-hole filling material, a top cover plate is commonly provided between the upper inner frame of the U-shaped frame plate and the upper left end of the flat plate, and the upper inner side and the lower inner side of the U-shaped frame plate and the flat plate are both filled with micro-expansive concrete.

[0006] Preferably, the waterstop steel plate, U-shaped frame plate and flat plate are all made of patterned galvanized steel plate with a thickness of 3 mm, the length of the U-shaped frame plate is greater than that of the flat plate, and the U-shaped frame plate and the flat plate are welded to form a square sleeve.

[0007] Preferably, the basement floor comprises a floor cushion layer, an isolation waterproof layer, a paint waterproof layer, a cement mortar layer, an additional layer of coiled material and a main waterproof layer. The paint waterproof layer, the cement mortar layer, the additional layer of coiled material and the main waterproof layer form a convex structure and are arranged at the connection between the dense mesh and the U-shaped frame plate and the flat plate.

[0008] Preferably, the fixing mechanism includes a mounting frame, the upper front and upper rear portions of the mounting frame are fixedly connected to support plates, a screw is movably connected between the lower portions of the opposite surfaces of the two support plates through a bearing, and a stabilizing plate is movably connected to the middle portion of the outer surface of the screw through a bearing.

[0009] Preferably, the outer front and rear portions of the screw rod are both threadedly connected with fixing clamps, the middle portion of the front end of the screw rod is fixedly connected with a handle, the left frame wall and the right frame wall of the mounting frame are jointly and movably connected with two bolts, and the outer right portions of the two bolts are both threadedly connected with nuts.

[0010] Preferably, the lower end surfaces of the two fixing clamping plates are in contact with the upper end surface of the installation frame, and the distance between the left frame wall and the right frame wall of the installation frame is consistent with the thickness of the flat plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In the utility model, by setting a U-shaped frame plate, a flat plate and a basement floor plate, the U-shaped frame plate and the flat plate are first welded into a square casing and inserted into the exploration hole, and then the pumping pipe inserted in the square casing can be used to centrally pump out the water in the exploration hole. The pumping cycle is short and the cost is low. The pumping device is easy to operate and is suitable for the situation of large water pressure difference, and the plugging effect is good;

[0013] 2. In the utility model, by setting a fixing mechanism, by putting the installation frame on the flat plate, and then firmly fixing the installation frame and the flat plate by bolts and nuts, and then rotating the screw to drive the two fixing clamps to move backward, the water pumping pipe can be clamped and fixed, thereby improving the stability of the water pumping pipe during the working process, and can clamp two water pumping pipes at the same time, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a centralized pumping and drainage device for water gushing from a deep foundation pit exploration hole according to the utility model;

[0015] Figure 2This is a schematic diagram of the overall structure of a fixing mechanism of a concentrated pumping and drainage device for water gushing from a deep foundation pit exploration hole according to the utility model;

[0016] Figure 3 It is a schematic diagram of the connection between the casing and the exploration hole of a deep foundation pit exploration hole water gushing centralized pumping and drainage device of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of casing plugging of a centralized pumping and drainage device for water gushing from a deep foundation pit exploration hole.

[0018] In the figure: 1. Waterstop steel plate; 2. Through-port; 3. U-shaped frame plate; 4. Flat plate; 5. Mounting hole; 6. Fixing mechanism; 7. Basement floor; 8. Exploration hole position; 9. Close mesh; 10. Filling material in the hole; 11. Top cover plate; 12. Micro-expanding concrete; 61. Mounting frame; 62. Support plate; 63. Screw; 64. Stabilizing plate; 65. Fixing splint; 66. Handle; 67. Bolt; 68. Nut. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A device for centralized pumping and drainage of water gushing from an exploration hole in a deep foundation pit comprises a water-stopping steel plate 1 and a basement floor 7, a through opening 2 is provided in the middle of the upper end of the water-stopping steel plate 1, a U-shaped frame plate 3 is welded inside the through opening 2, a flat plate 4 is welded to the right end of the U-shaped frame plate 3, two mounting holes 5 are provided in the upper right end of the flat plate 4, a fixing mechanism 6 is installed on the upper outer surface of the flat plate 4 through the two mounting holes 5, an exploration hole 8 is provided in the middle of the basement floor 7, and the lower outer surfaces of the U-shaped frame plate 3 and the flat plate 4 are both inserted into the exploration hole 8, a dense mesh 9 is provided at the connection between the exploration hole 8, the U-shaped frame plate 3 and the flat plate 4, the inside of the exploration hole 8 is filled with an in-hole filling material 10, a top cover plate 11 is provided between the upper inner frame of the U-shaped frame plate 3 and the upper left end of the flat plate 4, and the upper and lower inner sides of the U-shaped frame plate 3 and the flat plate 4 are both filled with micro-expansive concrete 12.

[0024] In this embodiment, the waterstop steel plate 1, the U-shaped frame plate 3 and the flat plate 4 are all made of patterned galvanized steel plate with a thickness of 3 mm. The length of the U-shaped frame plate 3 is greater than that of the flat plate 4, and the U-shaped frame plate 3 and the flat plate 4 are welded into a square sleeve, which is convenient for extending the pumping pipe into the square sleeve for pumping and drainage; the basement floor 7 includes a floor cushion layer, an isolation waterproof layer, a paint waterproof layer, a cement mortar layer, a coiled material additional layer and a main waterproof layer. The paint waterproof layer, the cement mortar layer, the coiled material additional layer and the main waterproof layer form a convex structure and are arranged at the connection between the dense mesh 9 and the U-shaped frame plate 3 and the flat plate 4, which enhances the leak-proof effect at the connection and improves the waterproof performance.

[0025] The fixing mechanism 6 comprises a mounting frame 61, the upper front and the upper rear of the mounting frame 61 are fixedly connected with a support plate 62, the lower parts of the opposite surfaces of the two support plates 62 are interlaced and movably connected by a screw rod 63 through a bearing, and the middle part of the outer surface of the screw rod 63 is interlaced and movably connected with a stabilizing plate 64 through a bearing; the outer front and the outer rear of the screw rod 63 are threadedly connected with a fixing clamping plate 65, and the front middle part of the screw rod 63 is fixedly connected with a handle 66, and the left frame wall and the right frame wall of the mounting frame 61 are interlaced and movably connected with two bolts 67, and the outer right parts of the two bolts 67 are threadedly connected with nuts 68; the lower end surfaces of the two fixing clamping plates 65 are in contact with the upper end surface of the mounting frame 61, so that the mounting frame 61 plays a limiting role on the two fixing clamping plates 65, and the spacing between the left frame wall and the right frame wall of the mounting frame 61 is consistent with the thickness of the flat plate 4, so that the mounting frame 61 is just stuck on the flat plate 4, so that the mounting frame 61 is installed and fixed firmly.

[0026] It should be noted that the utility model is a device for centralized pumping and drainage of water gushing from deep foundation pit exploration holes. During use, after the foundation pit is excavated to the designed elevation, according to the location of the exploration hole in the geological survey report or the location of the gushing hole, the water pump and the drainage pipe are first passed through the opening 2 of the water-stopping steel plate 1 and then put aside for temporary pumping. That is, the water-stopping steel plate 1 is passed on the drainage pipe in advance, and then a U-shaped frame plate is placed in the opening 2. After the drainage pipe is straightened, the remaining flat plate 4 is sealed to assemble it into a pumping and drainage square sleeve. Each structure is connected by a weld and the weld is full. Then, the pumping and drainage square sleeve is inserted into the exploration hole 8, and the water gushing from the exploration hole 8 can be centrally pumped and drained through the pumping pipe that has been passed through in advance. The pumping cycle is short and the cost is low. The pumping and drainage device is easy to operate and is suitable for situations where the water pressure difference is large. Before pumping water, the pumping pipe first puts the mounting frame 61 on the flat plate 4, and then bolts it. 67 and nut 68, firmly install the installation frame 61 and the plate 4, and then place the two water pumping pipes on the rear side of the two fixed clamps 65 respectively, and then rotate the handle 66 to drive the screw 63 to rotate, which can drive the two fixed clamps 65 to move backward, so that the water pumping pipes can be clamped and fixed, thereby improving the stability of the water pumping pipes during work, and can clamp two water pumping pipes at the same time, improving practicality. After the water in the exploration hole 8 is extracted, the exploration hole 8 can be filled with the hole filling material 10 through the pumping square casing to seal it, and then the micro-expansion concrete 12 is filled into the pumping square casing and the concrete top cover plate 11 is installed to achieve further sealing of the exploration hole 8, and then the bottom plate cushion layer, isolation waterproof layer, paint waterproof layer, cement mortar layer, roll material additional layer and main waterproof layer arranged in the basement floor 7 can enhance the waterproof effect of the connection and also enhance the plugging effect.

[0027] The above shows and describes the basic principle and main features of the utility model and the 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 claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A device for centralized pumping and drainage of water gushing from a deep foundation pit exploration hole, comprising a water-stop steel plate (1) and a basement floor (7), characterized in that: The water-stop steel plate (1) has a through opening (2) in the middle of the upper end, a U-shaped frame plate (3) is welded inside the through opening (2), a flat plate (4) is welded at the right end of the U-shaped frame plate (3), two mounting holes (5) are provided at the upper right end of the flat plate (4), a fixing mechanism (6) is installed at the upper outer surface of the flat plate (4) through the two mounting holes (5), an exploration hole (8) is provided in the middle of the basement floor (7), and the lower outer surface of the U-shaped frame plate (3) and the flat plate are connected to each other. The lower part of the outer surface of (4) is inserted into the interior of the exploration hole (8), a dense mesh (9) is provided at the connection between the exploration hole (8) and the U-shaped frame plate (3) and the flat plate (4), the interior of the exploration hole (8) is filled with hole filling material (10), a top cover plate (11) is provided between the upper part of the inner frame of the U-shaped frame plate (3) and the upper part of the left end of the flat plate (4), and the upper and lower sides of the interior of the U-shaped frame plate (3) and the flat plate (4) are filled with micro-expansion concrete (12).

2. A centralized pumping and drainage device for water gushing from deep foundation pit exploration holes according to claim 1, characterized in that: The water stop steel plate (1), the U-shaped frame plate (3) and the flat plate (4) are all made of patterned galvanized steel plate with a thickness of 3 mm. The length of the U-shaped frame plate (3) is greater than that of the flat plate (4), and the U-shaped frame plate (3) and the flat plate (4) are welded to form a square sleeve.

3. The device for centralized drainage of water gushing from deep foundation pit exploration holes according to claim 2 is characterized in that: The basement floor (7) comprises a floor cushion layer, an isolation waterproof layer, a coating waterproof layer, a cement mortar layer, a coiled material additional layer and a main waterproof layer. The coating waterproof layer, the cement mortar layer, the coiled material additional layer and the main waterproof layer form a convex structure and are arranged at the connection between the dense mesh (9) and the U-shaped frame plate (3) and the flat plate (4).

4. The device for centralized drainage of water gushing from deep foundation pit exploration holes according to claim 1, characterized in that: The fixing mechanism (6) comprises a mounting frame (61), the upper front portion and the upper rear portion of the mounting frame (61) are both fixedly connected to support plates (62), a screw rod (63) is movably connected between the lower portions of the opposing surfaces of the two support plates (62) through a bearing, and a stabilizing plate (64) is movably connected to the middle portion of the outer surface of the screw rod (63) through a bearing.

5. The device for centralized drainage of water gushing from deep foundation pit exploration holes according to claim 4 is characterized in that: The front and rear portions of the outer surface of the screw rod (63) are both threadedly connected to a fixing clamp (65), the middle portion of the front end of the screw rod (63) is fixedly connected to a handle (66), and two bolts (67) are interlaced and movably connected between the left frame wall and the right frame wall of the installation frame (61), and nuts (68) are threadedly connected to the right portions of the outer surfaces of the two bolts (67).

6. A centralized pumping and drainage device for water gushing from deep foundation pit exploration holes according to claim 5, characterized in that: The lower end surfaces of the two fixing clamps (65) are in contact with the upper end surface of the installation frame (61), and the distance between the left frame wall and the right frame wall of the installation frame (61) is consistent with the thickness of the plate (4).

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