Transformation construction structure of drainage box culvert connecting hoistway

Abstract

The utility model discloses a transformation construction structure for connecting a drainage box culvert with a hoistway. The transformation construction structure comprises the drainage box culvert under a road, an excavation groove is excavated in the road, and the end of the drainage box culvert is located in the excavation groove; a reaming groove is drilled in the end face of the drainage box culvert, and a lengthening pipe formed by a corrugated pipe is installed in the reaming groove. The lengthened pipe is installed in a reaming groove of the drainage box culvert in an extending mode, the exterior of the lengthened pipe is wrapped by a backfill concrete layer, stress is limited in the drainage box culvert, and the drainage box culvert is lengthened through the lengthened pipe to be communicated into a hoistway. And the pipe body and the drainage box culvert cannot be butted and lengthened to connect the hoistway.

Description

Technical Field

[0001] The utility model relates to a reconstruction construction structure for connecting a drainage box culvert with a shaft, and belongs to the technical field of municipal drainage construction. Background Art

[0002] During the renovation of the old city, the newly built shaft will be some distance away from the old drainage culvert, so the drainage culvert needs to be lengthened to connect with the shaft.

[0003] The existing technology for lengthening the drainage box culvert is shown in Chinese Patent Publication No. CN109252458B. An adjustable tensioning mechanism is installed on the outside of the drainage box culvert to pull the pipe body and the end face of the drainage box culvert to connect and lengthen. When the drainage box culvert is located at a limited length in the municipal road excavation, the pipe body and the drainage box culvert cannot be connected and lengthened to connect the well. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a reconstruction construction structure for connecting a drainage box culvert to a well.

[0005] The utility model is achieved through the following technical solutions.

[0006] The utility model provides a reconstruction construction structure for connecting a drainage box culvert to a well, comprising:

[0007] In the drainage box culvert under the road, an excavation groove is excavated on the road, and the end of the drainage box culvert is located in the excavation groove;

[0008] An expansion groove is drilled in the end face of the drainage box culvert, and an extension pipe consisting of a corrugated pipe is installed in the expansion groove.

[0009] The drainage box culvert is extended and connected to a well through an extension pipe; a well cover is installed on the top of the well.

[0010] The front ends of the expansion grooves of the extension pipe and the drainage box culvert are sprayed with a foaming rubber layer for sealing.

[0011] The expansion grooves of the extension pipe and the drainage box culvert are filled with a backfill concrete layer, the backfill concrete layer wraps the outside of the extension pipe, and the backfill concrete layer is flush with the end face of the drainage box culvert.

[0012] The end surface where the backfill concrete layer is connected to the drainage box culvert is coated with a waterproof layer, and the waterproof layer is covered with an elastic sealing layer.

[0013] The outside of the extension pipe in the excavated groove is backfilled with a backfill concrete layer B, which presses the elastic sealing layer. The road layer is paved on the backfill concrete layer B to form a road as a whole with the previous road.

[0014] The beneficial effects of the present invention are as follows: the extension pipe is extended into the expansion groove installed in the drainage culvert, the outside of the extension pipe is wrapped by a backfill concrete layer and the force is limited in the drainage culvert, and the drainage culvert is extended and connected to the well through the extension pipe, which solves the problem that when the drainage culvert is located in a municipal road with a limited excavation length, the pipe body and the drainage culvert cannot be docked and extended to connect to the well. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the top view of the structure of the utility model with an excavated groove on the road;

[0016] Figure 2 It is a structural diagram of the utility model;

[0017] Figure 3 This is a structural diagram of the utility model in which the foamed rubber layer wraps the extension pipe in the drainage box culvert;

[0018] In the figure: 1-road; 11-excavation trench; 2-drainage box culvert; 21-expansion trench; 3-extension pipe; 4-well; 41-manhole cover; 5-foam rubber layer; 6-backfill concrete layer; 61-elastic sealing layer; 7-backfill concrete layer B. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the described solution.

[0020] like Figures 1 to 2 shown.

[0021] The present application discloses a reconstruction construction structure for connecting a drainage box culvert to a well, comprising:

[0022] Drainage culvert 2, drainage culvert 2 has been constructed under road 1 before, and an excavation groove 11 is excavated on road 1. The end of drainage culvert 2 is in the excavation groove 11. In order to ensure the passage of vehicles on road 1, the length of excavation groove 11 is limited, which makes it impossible to install an adjustable tensioning mechanism on the outside of drainage culvert 2.

[0023] A reaming groove 21 is drilled in the end face of the drainage culvert 2, and an extension pipe 3 composed of a corrugated pipe is installed in the reaming groove 21. The extension pipe 3 extends the drainage culvert 2 and connects it to the well 4. A manhole cover 41 is installed on the top of the well 4.

[0024] A foam layer 5 is sprayed on the front end of the expansion groove 21 of the extension pipe 3 and the drainage culvert 2. The foam layer 5 wraps the bottom of the front end of the extension pipe 3 to seal it, so that the sewage in the drainage culvert 2 enters the extension pipe 3.

[0025] The expansion groove 21 of the extension pipe 3 and the drainage culvert 2 is filled with a backfill concrete layer 6, and the backfill concrete layer 6 wraps the outside of the extension pipe 3. The backfill concrete layer 6 is flush with the end face of the drainage culvert 2 by roughening; the end face where the backfill concrete layer 6 and the drainage culvert 2 are connected is coated with a waterproof layer, and the waterproof layer is covered with an elastic sealing layer 61. Under the sealing action of the waterproof layer and the elastic sealing layer 61, the backfill concrete layer 6 is prevented from leaking.

[0026] The outside of the extension pipe 3 in the excavated groove 11 is backfilled with a backfill concrete layer B7, and concrete or asphalt is laid on the backfill concrete layer B7 to form a road as a whole with the previous road 1.

[0027] An excavation groove 11 with a limited length is excavated in the road 1, and an expansion groove 21 is drilled at the end of the drainage culvert 2 in the excavation groove 11. The extension pipe 3 extends into the expansion groove 21 installed in the drainage culvert 2. The outside of the extension pipe 3 is wrapped by a backfill concrete layer 6 and the force is limited within the drainage culvert 2. The drainage culvert 2 is extended by the extension pipe 3 and connected to the well 4, which solves the problem that when the drainage culvert is in a municipal road with a limited excavation length, the pipe body and the drainage culvert cannot be docked and extended to connect to the well.

Claims

1. A reconstruction construction structure for connecting a drainage box culvert to a well, characterized in that: include: A drainage box culvert (2) under a road (1), an excavation groove (11) is excavated on the road (1), and an end portion of the drainage box culvert (2) is located in the excavation groove (11); An expansion groove (21) is drilled in the end surface of the drainage box culvert (2), and an extension pipe (3) composed of a corrugated pipe is installed in the expansion groove (21).

2. The reconstruction construction structure of the drainage box culvert connected to the well as claimed in claim 1 is characterized in that: The drainage box culvert (2) is extended through an extension pipe (3) and is connected to a well (4); a well cover (41) is installed on the top of the well (4).

3. The reconstruction construction structure of the drainage box culvert connected to the well as claimed in claim 1 is characterized in that: The front ends of the expansion grooves (21) of the extension pipe (3) and the drainage box culvert (2) are sprayed with a foaming rubber layer (5) for sealing.

4. The reconstruction construction structure of the drainage box culvert connected to the well as claimed in claim 1 is characterized in that: The expansion groove (21) of the extension pipe (3) and the drainage box culvert (2) is filled with a backfill concrete layer (6), the backfill concrete layer (6) wraps the outside of the extension pipe (3), and the backfill concrete layer (6) is flush with the end surface of the drainage box culvert (2).

5. The reconstruction construction structure of the drainage box culvert connected to the well as claimed in claim 4 is characterized in that: The end surface where the backfill concrete layer (6) and the drainage box culvert (2) meet is coated with a waterproof layer, and the waterproof layer is covered with an elastic sealing layer (61).

6. The reconstruction construction structure of the drainage box culvert connected to the well as claimed in claim 1 is characterized in that: The outside of the extension pipe (3) in the excavated groove (11) is backfilled with a backfill concrete layer B (7), the backfill concrete layer B (7) presses the elastic sealing layer (61), and the road layer is laid on the top of the backfill concrete layer B (7) to form a road as a whole with the previous road (1).

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