Municipal drainage pipeline unblocking keeping device in open cut tunnel construction

Abstract

The utility model relates to the technical field of tunnel construction, and provides a device for keeping a municipal drainage pipeline unblocked in open cut tunnel construction. Five groups of drainage pipelines which are connected in series and have the middle sections sunken downwards are mounted on the outer side of a side wall of an open-cut tunnel and in a foundation pit below a bottom plate, the five groups of drainage pipelines which are connected in series and have the middle sections sunken downwards are connected with a foundation pit soil body through fixing devices, the fixing devices are arranged on the drainage pipelines in a sleeving mode through hoops, and reinforcing steel bars are welded to the hoops. The tail ends of the reinforcing steel bars are inserted into soil to stabilize the drainage pipeline, after the drainage pipeline is laid and the fixing device is installed, C35 concrete is used for pouring, in the C35 concrete pouring process, the fixing device can prevent pouring concrete from impacting or pressing the drainage pipeline to cause toppling or shifting of the drainage pipeline, and the drainage pipeline fixing device is simple in structure, convenient and fast to install, high in economic benefit and suitable for popularization and application. And durability and practicability are high, long-term utilization can be achieved, and meanwhile the construction period can be effectively shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a device for ensuring the unobstructed flow of municipal drainage pipes during open-cut tunnel construction. Background Technique

[0002] In order to effectively relieve the increasing pressure on the urban traffic network, the application of urban road underpass tunnels is becoming more and more extensive. During tunnel construction, due to the large number and various types of urban underground municipal drainage pipes, it causes certain difficulties for open-cut tunnel construction. In traditional open-cut tunnel construction, the method of pipeline relocation is often used to avoid the influence of underground pipelines on construction. The traditional line relocation requires the relocation of pipelines, which is not only time-consuming and complicated, but also affects the construction period and has low economic benefits, increasing the construction difficulty and construction period of open-cut tunnels.

[0003] Therefore, it is urgent to develop a device for ensuring the unobstructed flow of municipal drainage pipes during open-cut tunnel construction to overcome the deficiencies of the prior art. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies of the prior art and provide a device for ensuring the unobstructed flow of municipal drainage pipes during open-cut tunnel construction to reduce the construction difficulty of open-cut tunnels.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for ensuring the unobstructed flow of municipal drainage pipes during open-cut tunnel construction includes five groups of drainage pipes connected in series with the middle section sunken downward, and joints for connecting adjacent two groups of drainage pipes; a number of fixing devices are sleeved on the drainage pipes, and the ends of the fixing devices are inserted into the soil; the five groups of drainage pipes connected in series with the middle section sunken downward are installed in the foundation pit outside the side wall of the open-cut tunnel and under the bottom plate, and both ends of the five groups of drainage pipes are connected to the municipal drainage pipes.

[0007] Preferably, the fixing device includes a hoop sleeved on the drainage pipe and a steel bar fixedly connected to the hoop, and the end of the steel bar is inserted into the soil.

[0008] Preferably, the five groups of drainage pipes are the first drainage pipe, the second drainage pipe, the third drainage pipe, the fourth drainage pipe, and the fifth drainage pipe in sequence. One end of the first drainage pipe is connected to the municipal pipe, the empty end of the first drainage pipe is connected to the second drainage pipe, the empty end of the second drainage pipe is connected to the third drainage pipe, the empty end of the third drainage pipe is connected to the fourth drainage pipe, the empty end of the fourth drainage pipe is connected to the fifth drainage pipe, and the empty end of the fifth drainage pipe is connected to the municipal pipe. The first drainage pipe, the third drainage pipe, and the fifth drainage pipe are parallel to the ground, and the second drainage pipe and the fourth drainage pipe are perpendicular to the ground.

[0009] Preferably, the drainage pipe is made of HDPE drainage pipe.

[0010] Preferably, the joint is a PVC pipe joint.

[0011] Preferably, the fixing devices are spaced 50 cm apart.

[0012] The utility model discloses a device for ensuring the unobstructed flow of municipal drainage pipes during open-cut tunnel construction, which has the following beneficial effects.

[0013] In the device of the utility model, five groups of drainage pipes with a downwardly concave middle section connected in series are installed in the foundation pit outside the side wall of the open-cut tunnel and under the bottom slab. The five groups of drainage pipes with a downwardly concave middle section connected in series are connected to the foundation pit soil through fixing devices. The fixing devices are sleeved on the drainage pipes through hoop fasteners, and steel bars are welded on the hoop fasteners, and the ends of the steel bars are inserted into the soil, so as to stabilize the drainage pipes. When the laying of the drainage pipes is completed and the installation of the fixing devices is completed, C35 concrete is poured. During the pouring process of the C35 concrete, the fixing devices can prevent the poured concrete from impacting or pressing the drainage pipes and causing them to fall or shift. The structure of the utility model is simple, the installation is convenient, the economic benefit is high, the durability and practicability are strong, it can be used for a long time, and at the same time, the construction period can be effectively saved. Description of the Drawings

[0014] Figure 1 It is a front view structural schematic diagram of the utility model.

[0015] In the drawings: 1. Drainage pipe; 11. First drain pipe; 12. Second drain pipe; 13. Third drain pipe; 14. Fourth drain pipe; 15. Fifth drain pipe; 2. Joint; 3. Fixing device; 31. Hoop fastener; 32. Steel bar; 4. Tunnel side wall; 5. Foundation pit. Detailed Embodiment

[0016] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0017] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. Embodiment

[0018] The utility model discloses a device for ensuring the unobstructed flow of municipal drainage pipes during open-cut tunnel construction, which is used to avoid the scenarios of steel casing offset and sinking.

[0019] Referring to Figure 1 , a device for maintaining the normal drainage of municipal drainage pipes during open-cut tunnel construction, which includes five groups of drainage pipes 1 connected in series with the middle section sunken downward, joints 2 for connecting adjacent two groups of drainage pipes 1, and the joints 2 adopt 90° PVC pipe joints 2; the five groups of drainage pipes 1 connected in series with the middle section sunken downward are installed in the foundation pit 5 under the side wall 4 of the open-cut tunnel and under the bottom plate, and both ends of the five groups of drainage pipes 1 are connected to the municipal drainage pipes 1. Specifically, in this embodiment, the drainage pipes 1 adopt HDPE drainage pipes with an inner diameter of 1000 mm. The five groups of drainage pipes 1 are the first drainage pipe 11, the second drainage pipe 12, the third drainage pipe 13, the fourth drainage pipe 14, and the fifth drainage pipe 15 in sequence. One end of the first drainage pipe 11 is connected to the municipal pipe, the empty end of the first drainage pipe 11 is connected to the second drainage pipe 12, the empty end of the second drainage pipe 12 is connected to the third drainage pipe 13, the empty end of the third drainage pipe 13 is connected to the fourth drainage pipe 14, the empty end of the fourth drainage pipe 14 is connected to the fifth drainage pipe 15, and the empty end of the fifth drainage pipe 15 is connected to the municipal pipe. The first drainage pipe 11, the third drainage pipe 13, and the fifth drainage pipe 15 are parallel to the ground, the second drainage pipe 12 and the fourth drainage pipe 14 are perpendicular to the ground. A number of fixing devices 3 are sleeved on the drainage pipes 1, and the ends of the fixing devices 3 are inserted into the soil body; the first drainage pipe 11 and the fifth drainage pipe 15 are placed above the ground outside the foundation pit 5, and the third drainage pipe 13 is placed at the bottom of the foundation pit 5.

[0020] In this embodiment, the interval between the fixing devices 3 is 50 cm. The fixing device 3 includes a hoop 31 sleeved on the drainage pipe 1 and a steel bar 32 welded to the hoop 31, and the end of the steel bar 32 is inserted into the soil body. The steel bar 32 adopts C15 threaded steel bar 32. In this embodiment, preferably, the steel bars 32 in the fixing devices 3 sleeved on the second drainage pipe 12 and the fourth drainage pipe 14 are obliquely inserted into the foundation pit soil body at an angle of 45°, and the steel bars 32 in the fixing devices 3 sleeved on the first drainage pipe 11, the third drainage pipe 13, and the fifth drainage pipe 15 are vertically inserted into the foundation pit soil body.

[0021] After the drainage pipes 1 are laid and the fixing devices 3 are installed, C35 concrete is poured. During the pouring process of the C35 concrete, the fixing devices 3 can prevent the poured concrete from impacting or pressing the drainage pipes 1 and causing them to fall or shift. The utility model has a simple structure, convenient installation, high economic benefits, strong durability and practicability, can be used for a long time, and can effectively save the construction period.

[0022] The above are only the preferred embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. The substitution may be the substitution of some structures, devices, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present utility model and its inventive concept shall be covered within the protection scope of the present utility model.

Claims

1. A device for ensuring the unobstructed flow of municipal drainage pipelines during open-cut tunnel construction, characterized in that, It includes five groups of drainage pipes (1) with the middle section serially connected and sunken downward, and joints (2) for connecting adjacent two groups of drainage pipes (1); several fixing devices (3) are sleeved on the drainage pipes (1), and the ends of the fixing devices (3) are inserted into the soil body; the five groups of drainage pipes (1) with the middle section serially connected and sunken downward are installed in the foundation pit (5) under the side wall (4) of the open-cut tunnel and under the floor, and both ends of the five groups of drainage pipes (1) are connected to the municipal drainage pipes (1).

2. The device for ensuring the unobstructed flow of municipal drainage pipes during open-cut tunnel construction according to claim 1, wherein, The fixing device (3) includes a hoop (31) sleeved on the drainage pipe (1), and a steel bar (32) fixedly connected to the hoop (31), and the end of the steel bar (32) is inserted into the soil body.

3. The device for ensuring the unobstructed flow of municipal drainage pipes during open-cut tunnel construction according to claim 1, wherein, The five groups of drainage pipes (1) are successively the first drainage pipe (11), the second drainage pipe (12), the third drainage pipe (13), the fourth drainage pipe (14), and the fifth drainage pipe (15). One end of the first drainage pipe (11) is connected to the municipal pipe, the empty end of the first drainage pipe (11) is connected to the second drainage pipe (12), the empty end of the second drainage pipe (12) is connected to the third drainage pipe (13), the empty end of the third drainage pipe (13) is connected to the fourth drainage pipe (14), the empty end of the fourth drainage pipe (14) is connected to the fifth drainage pipe (15), and the empty end of the fifth drainage pipe (15) is connected to the municipal pipe. The first drainage pipe (11), the third drainage pipe (13), and the fifth drainage pipe (15) are parallel to the ground, and the second drainage pipe (12) and the fourth drainage pipe (14) are perpendicular to the ground.

4. The device for ensuring the unobstructed flow of municipal drainage pipelines during open-cut tunnel construction according to claim 1, characterized in that, The drainage pipe (1) is made of HDPE drainage pipe.

5. The device for ensuring the unobstructed drainage of municipal drainage pipes during open-cut tunnel construction according to claim 1, characterized in that, The joint (2) adopts a PVC pipe joint (2).

6. The device for ensuring the unobstructed drainage of municipal drainage pipelines during the open-cut tunnel construction according to claim 1 or 2, characterized in that, The distance between the fixing devices (3) is 50 cm.

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