Tunnel open cut section deep foundation pit

Abstract

The utility model provides a tunnel open cut section deep foundation pit which comprises a deep foundation pit body, drainage openings are formed in the two sides of the bottom end in the deep foundation pit body respectively, drainage grooves are formed in the bottom ends of the drainage openings respectively, and filter plates are fixedly connected to the positions, close to the drainage openings, of the inner walls of the two sides in the drainage grooves. A plurality of filtering holes are formed in the top end of the filtering plate, and a plurality of crushing blades are installed at the top end of the filtering plate at equal intervals. According to the device, in the process that the water suction pump drains water into the deep foundation pit body, the filter plate and the filter holes are used in cooperation, sludge can be blocked on the filter plate, the motor and the crushing blades are used in cooperation, the sludge on the filter plate is crushed, the situation that the sludge blocks the drainage groove is avoided, and the drainage efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of open-cut deep foundation pits for tunnels, and more specifically, particularly relates to an open-cut deep foundation pit for tunnels. Background Art

[0002] Open-cut deep pits refer to projects with excavation depths exceeding 5 meters, or projects with depths less than 5 meters but with particularly complex geological conditions, surrounding environment, and underground pipelines. When excavating deep pits, a large amount of water can easily seep into the pit, seriously affecting the construction progress. At present, drainage troughs are usually set up inside the deep pits, and pumps are used for drainage. However, during the drainage process, the soil in the deep pits mixes with water, easily forming silt that causes the drainage troughs to be blocked, seriously affecting the drainage efficiency.

[0003] Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a deep foundation pit of the open-cut section of the tunnel is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a deep foundation pit of an open-cut tunnel section, which is achieved by the following specific technical means:

[0005] A deep foundation pit of an open-cut tunnel section comprises a deep foundation pit body, drainage outlets are respectively provided on both sides of the bottom end inside the deep foundation pit body, drainage grooves are respectively provided at the bottom ends of a pair of drainage outlets, filter plates are fixedly connected to the inner walls on both sides of the drainage grooves at positions close to the drainage outlets, a plurality of filter holes are provided on the top of the filter plate, and a plurality of crushing blades are equidistantly installed on the top of the filter plate.

[0006] Furthermore, a plurality of working boxes are installed at the bottom end of the filter plate, a motor is installed inside the working box, and the output end of the motor is transmission-connected to the central shaft of the crushing blade through a coupling.

[0007] Furthermore, a scraper is provided at the bottom end of the crushing blade, and the scraper is fitted with the top end of the filter hole.

[0008] Furthermore, a plurality of installation chambers are equidistantly arranged inside the bottom end of the deep foundation pit body, and a water pump is installed inside the installation chamber.

[0009] Furthermore, water suction ports are provided on both sides of the installation chamber, the water suction ports are communicated with the drainage groove, and the water pump is connected to the water suction ports.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model discloses a deep foundation pit of an open-cut section of a tunnel, which facilitates the drainage of water inside the deep foundation pit body through the coordinated use of a drainage port, a drainage trough, a water pump and a drainage port. In the process of the water pump draining water inside the deep foundation pit body, the coordinated use of the filter plate and the filter hole can block the silt on the filter plate, and the coordinated use of the motor and the crushing blade can crush the silt on the filter plate, thereby avoiding the blockage of the drainage trough caused by the silt, thereby greatly improving the drainage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0013] Figure 2 The utility model Figure 1 A magnified schematic diagram of the structure in the middle.

[0014] Figure 3 It is a side plane sectional view of the drainage trough of the utility model.

[0015] Figure 4 It is a top plan cross-sectional view of the drainage trough of the utility model.

[0016] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0017] 1. Deep foundation pit body; 2. Drainage outlet; 3. Drainage trough; 301. Filter plate; 302. Filter hole; 303. Crushing blade; 304. Working box; 305. Motor; 4. Installation chamber; 401. Water pump; 402. Water outlet. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0019] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example:

[0022] As attached Figure 1 To Attachment Figure 4 As shown:

[0023] The utility model provides a deep foundation pit of an open-cut section of a tunnel, comprising a deep foundation pit body 1, drainage ports 2 are respectively provided on both sides of the bottom end inside the deep foundation pit body 1, drainage grooves 3 are respectively provided at the bottom ends of a pair of drainage ports 2, filter plates 301 are fixedly connected to the inner walls on both sides of the drainage grooves 3 at positions close to the drainage ports 2, a plurality of filter holes 302 are provided on the top of the filter plate 301, and a plurality of crushing blades 303 are equidistantly installed on the top of the filter plate 301.

[0024] Among them, several working boxes 304 are installed at the bottom end of the filter plate 301, and a motor 305 is installed inside the working box 304. The output end of the motor 305 is connected to the central axis of the crushing blade 303 through a coupling. The setting of the motor 305 facilitates the rotation of the crushing blade 303.

[0025] A scraper is provided at the bottom end of the crushing blade 303 , and the scraper fits with the top of the filter hole 302 . The scraper is provided to facilitate cleaning of the surface of the filter plate 301 .

[0026] Among them, a plurality of installation chambers 4 are equidistantly arranged inside the bottom end of the deep foundation pit body 1, and a water pump 401 is installed inside the installation chamber 4. The arrangement of the water pump 401 facilitates the removal of water from the drainage trough 3.

[0027] Wherein, water suction ports 402 are provided on both sides of the installation chamber 4 , the water suction ports 402 are communicated with the drainage groove 3 , and the water pump 401 is connected to the water suction ports 402 .

[0028] The working principle of this embodiment: through the coordinated use of the drain port 2, the drainage trough 3, the water pump 401 and the water pump port 402, it is convenient to discharge the water inside the deep foundation pit body 1. In the process of the water pump 401 draining the deep foundation pit body 1, the coordinated use of the filter plate 301 and the filter hole 302 can block the silt on the filter plate 301, and the coordinated use of the motor 305 and the crushing blade 303 can break the silt on the filter plate 301 to avoid the blockage of the drainage trough 3 caused by the silt, thereby greatly improving the drainage efficiency.

[0029] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A deep foundation pit of an open-cut tunnel section, comprising a deep foundation pit body (1), characterized in that: Drainage outlets (2) are respectively provided on both sides of the bottom end of the deep foundation pit body (1), and drainage grooves (3) are respectively provided at the bottom ends of a pair of the drainage outlets (2). A filter plate (301) is fixedly connected to the inner walls on both sides of the drainage groove (3) at a position close to the drainage outlet (2), and a plurality of filter holes (302) are provided on the top end of the filter plate (301), and a plurality of crushing blades (303) are equidistantly installed on the top end of the filter plate (301).

2. The deep foundation pit of the open-cut tunnel section according to claim 1, characterized in that: A plurality of working boxes (304) are installed at the bottom end of the filter plate (301), a motor (305) is installed inside the working box (304), and the output end of the motor (305) is transmission-connected to the central axis of the crushing blade (303) through a coupling.

3. The deep foundation pit of the open-cut tunnel section according to claim 1, characterized in that: A scraper is provided at the bottom end of the crushing blade (303), and the scraper is in contact with the top end of the filtering hole (302).

4. The deep foundation pit of the open-cut tunnel section according to claim 1, characterized in that: A plurality of installation chambers (4) are arranged at equal distances inside the bottom end of the deep foundation pit body (1), and a water pump (401) is installed inside the installation chamber (4).

5. The deep foundation pit of the open-cut tunnel section as claimed in claim 4, characterized in that: Water suction ports (402) are provided on both sides of the installation chamber (4), the water suction ports (402) are communicated with the drainage groove (3), and the water pump (401) is connected to the water suction ports (402).

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