Underground comprehensive pipe gallery outgoing line working well

Abstract

The utility model discloses an underground comprehensive pipe gallery outgoing line working well which comprises a well body structure and a cover plate assembly horizontally arranged on the top wall of the uppermost well section in a covering mode. The two well mouth assemblies comprise prefabricated wellbores with the bottoms communicating with the cover plate assembly and well lids covering the top walls of the prefabricated wellbores. The platform assemblies are vertically arranged in the well body structure at intervals in the horizontal direction and fixed to the inner wall of the well body structure. And the two crawling ladders are fixed on the inner wall of the well body structure. By adopting the mechanism, each well section can be sequentially constructed from top to bottom, the safety is high, the construction efficiency is improved, and the working well integrally extends underground, so that the occupied plane space is small, the road traffic cannot be influenced, and meanwhile, the requirement that various outgoing line nodes are connected in the well and then go out of the outer side of a road can be met.

Description

Technical Field

[0001] This utility model relates to integrated utility tunnels, specifically to an underground integrated utility tunnel outlet working well. Background Technology

[0002] The outgoing manhole structure, usually located on the outside of the road, is an important part of the integrated utility tunnel. After the tunnel is built, it can integrate various engineering pipelines such as power, communication, heating, and water supply. Various outgoing nodes are connected in the form of branch trenches or branch tunnels and then outgoing to the outside of the road. The trunk integrated utility tunnel can also incorporate rainwater and sewage systems to ensure the normal operation of important urban infrastructure.

[0003] Chinese patent CN106592625B discloses a structure for connecting the outgoing lines of an integrated utility tunnel in urban roads. The structure includes an integrated utility tunnel, an outgoing well of the integrated utility tunnel, a road reserved trench, a user connection well, an outgoing area, an outgoing hole, a pipeline compartment in the road reserved trench, and reserved holes in the side wall of the connection well. The integrated utility tunnel is located in the tunnel strip outside the road sidewalk. A reserved trench is set within the road red line area, and a user connection well is provided at the end of the tunnel strip.

[0004] However, the integrated utility tunnel outlet well in the aforementioned patent, like most existing outlet working wells, occupies a large overall structural planar space and has redundant planar dimensions. During construction, it requires significant road occupancy, affecting the normal operation of urban traffic. Moreover, the internal structural space and pipeline channel layout lack systematic planning, which can easily lead to problems such as insufficient maintenance space and pipeline intersection interference. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an underground integrated pipe gallery outlet working well. Using this working well will effectively improve construction efficiency. Moreover, the working well extends underground as a whole, which makes the plane space occupied small and will not affect road traffic.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model discloses an underground integrated utility tunnel outlet working well, comprising:

[0008] The well structure includes several well sections arranged sequentially from top to bottom. The inner diameter of the well sections gradually decreases from top to bottom. One side wall of the uppermost well section is connected to the inner end of the first conduit, and one side wall of the lowermost well section is connected to the inner end of the second conduit.

[0009] A cover plate assembly, wherein the cover plate assembly is horizontally installed on the top wall of the uppermost well section;

[0010] Two wellhead assemblies, the two wellhead assemblies including a prefabricated well cylinder whose bottom is connected to a cover plate assembly and a well cover covering the top wall of the prefabricated well cylinder;

[0011] The platform components are arranged horizontally and vertically within the well structure and fixed to the inner wall of the well structure. Each platform component is provided with a closed platform and a passage for a ladder to pass through.

[0012] Two ladders are fixed to the inner wall of the well structure. The top of each ladder is positioned opposite the outlet of a prefabricated well shaft, and the bottom of each ladder is connected to the bottom wall of the well structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] It can carry out construction on each well section sequentially from top to bottom, which is safe, easy to construct, shortens the construction period, and improves construction efficiency. Moreover, the working well extends underground as a whole, which reduces the space occupied and will not affect road traffic. In addition, the working well has a built-in ladder, which makes maintenance easy. At the same time, it can meet the requirements of various outgoing nodes to connect inside the well and then outgoing to the outside of the road. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of an underground integrated pipe gallery outlet working well according to the present invention;

[0016] Figure 2 for Figure 1 Top view of the structure shown;

[0017] Figure 3 for Figure 1 A cross-sectional view of the structure shown along the AA direction;

[0018] Figure 4 for Figure 1 A cross-sectional view of the structure shown in the BB direction;

[0019] Figure 5 for Figure 1 A cross-sectional view of the structure shown in the CC direction.

[0020] The numbers in the diagram are as follows: 1. Primary lining well wall; 11. Secondary lining well wall; 12. First conduit; 13. Second conduit; 14. Sealant; 15. Primary lining hidden beam; 16. Secondary lining hidden beam; 17. Subbase; 2. Precast cover plate; 21. Cast-in-place cover plate; 3. Precast well shaft; 31. Well cover; 4. Ring beam; 5. Ladder; 6. Frame beam; 61. Support beam; 62. Steel grating; 63. Embedded steel plate; 7. Secondary lining base plate; 8. Sump; 81. Grating. Detailed Implementation

[0021] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] like Figure 1-2 As shown, this utility model provides an underground integrated utility tunnel outgoing working shaft, comprising:

[0023] The well structure includes several well sections arranged sequentially from top to bottom. The inner diameter of the well sections gradually decreases from top to bottom. One side wall of the uppermost well section is connected to the inner end of the first conduit 12, and one side wall of the lowermost well section is connected to the inner end of the second conduit 13.

[0024] Preferably, the sidewall of each well section includes a primary lining well wall 1 and a secondary lining well wall 11 that is tightly fitted onto the inner wall of the primary lining well wall. The primary lining well wall 1 of the lowest well section has a barrel-shaped structure.

[0025] Preferably, the first conduit 12 and the second conduit 13 are located on opposite sides of the well structure. The second conduit 13 is sealed to the primary lining well wall 1 of the corresponding well section by sealant 14 to prevent water infiltration. A primary lining hidden beam 15 is provided between the upper part of the second conduit 13 and the primary lining well wall 1, and a secondary lining hidden beam 16 is provided between the upper part of the second conduit 13 and the secondary lining well wall 11. The primary lining hidden beam 15 and the secondary lining hidden beam 16 can play a role in load-bearing and support, preventing the primary lining well wall 1 and the secondary lining well wall 11 above the second conduit 13 from causing pressure damage to it.

[0026] Preferably, the well section consists of three segments, which ensures sufficient space within the working well while controlling construction costs.

[0027] A cover plate assembly is horizontally installed on the top wall of the uppermost well section; preferably, the cover plate assembly includes two precast cover plates 2 arranged coplanarly and a cast-in-place cover plate 21. The cast-in-place cover plate 21 is fixedly installed between the two precast cover plates 2, and the gap between the two precast cover plates 2 and the cast-in-place cover plate 21 is filled with mortar to ensure a tight connection between the cast-in-place cover plate 21 and the two precast cover plates 2.

[0028] The system includes two wellhead assemblies, each comprising a prefabricated well shaft 3 whose bottom communicates with a cover plate assembly, and a well cover 31 covering the top wall of the prefabricated well shaft. Preferably, the two wellhead assemblies are located on opposite sides of the cover plate assembly and are staggered.

[0029] The platform components are arranged horizontally and vertically within the well structure and fixed to the inner wall of the well structure. Each platform component is provided with a closed platform and a passage for a ladder to pass through.

[0030] In one embodiment of this utility model, the enclosed platform includes at least two frame beams 6 spaced apart on the left and right sides. The front and rear ends of each frame beam 6 are fixed to the inner wall of the well structure. The right wall of the rightmost frame beam is fixed to the right inner wall of the well structure via a support beam 61. The rightmost frame beam and support beam 61 are arranged in a T-shape. The enclosed platform consists of steel grating 62 laid on part of the top wall of the T-shaped structure and between adjacent frame beams 6. The steel grating 62 provides a platform for construction personnel to stand, perform maintenance, and place items. The vertically staggered arrangement of the top wall of the T-shaped structure enclosed by steel grating provides a certain level of safety protection. A passageway is formed at the other part of the top wall of the T-shaped structure not enclosed by steel grating.

[0031] Two ladders 5 are fixed to the inner wall of the well structure. The top of each ladder is opposite to the outlet of a prefabricated well shaft, and the bottom of each ladder is connected to the bottom wall of the well structure.

[0032] Preferably, the two ladders extend downward through a channel at each platform component.

[0033] like Figure 1 as well as Figure 5 As shown, preferably, the bottom wall of the well structure includes a primary lining well wall 1, on which a secondary lining plate 7 is cast. A water collection pit 8 is provided in the middle of the secondary lining plate 7, and a grate 81 is provided at the opening of the water collection pit 8. The water collection pit 8 and the secondary lining plate 7 form a funnel structure; the water collection pit 8 can collect groundwater seepage, rainwater and other wastewater.

[0034] like Figure 1 As shown, preferably, a ring beam 4 is provided between the cover plate assembly and the top wall of the primary lining well wall, and the ring beam 4 is fixedly sleeved on the secondary lining well wall 11 of the uppermost well section. The ring beam is sealed to the cover plate assembly and the primary lining well wall respectively by grouting, which is a sealing grouting mortar made of cement, sand and additives.

[0035] like Figure 1 as well as Figure 3-4 As shown, preferably, the upper part of the frame beam 6, which is not connected to the support beam 61, is provided with a pre-embedded steel plate 63; the pre-embedded steel plate 63 can increase the bending stiffness and strength of the frame beam 6, and can also prevent the occurrence of cracks in the bottom plate of the beam.

[0036] When using this utility model, the outgoing well is constructed at the location where the integrated pipe gallery needs to connect the outgoing lines. Then, the first conduit 12 and the second conduit 13 are used for wiring, which can meet the connection of various nodes. When it is necessary to inspect or repair the pipeline in the well, the staff can open one of the well covers 31 and enter the well through the corresponding prefabricated well cylinder 3 via the ladder 5. Moreover, different prefabricated well cylinders 3 can be selected to enter according to different needs, so as to directly enter the bottom of the well or enter the steel grating 62 at different positions to inspect and repair different positions in the well. It is safer, more reliable and more user-friendly to use. At the same time, the water collected in the sump 8 can be pumped out after a certain period of time to prevent excessive water accumulation and soaking of the pipeline in the well.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An underground utility tunnel outlet work well, characterized in that The utility model relates to a well body structure, a cover plate assembly, two wellhead assemblies, a platform assembly and two climbing ladders. The well body structure comprises a plurality of well segments arranged in sequence from top to bottom and communicated with each other, the inner diameters of the well segments gradually decrease from top to bottom, one side wall of the uppermost well segment is communicated with the inner end of a first threading pipe, and one side wall of the lowermost well segment is communicated with the inner end of a second threading pipe. The cover plate assembly is horizontally arranged on the top wall of the uppermost well segment. The two wellhead assemblies comprise prefabricated well shafts communicated with the cover plate assembly and well covers arranged on the top wall of the prefabricated well shafts. The platform assembly is arranged in the well body structure in a horizontal direction and fixed to the inner wall of the well body structure. Each platform assembly is provided with a closed platform and a passage for the climbing ladders.

2. The underground utility tunnel outlet work well according to claim 1, characterized in that: The two climbing ladders are fixed to the inner wall of the well body structure, the top of each climbing ladder is arranged opposite to the outlet of one prefabricated well shaft, and the bottom of each climbing ladder is connected to the bottom wall of the well body structure.

3. The utility tunnel outlet work well according to claim 2, characterized in that: The side wall of each well segment comprises a primary lining wall and a secondary lining wall closely arranged on the inner wall of the primary lining wall.

4. The utility tunnel outlet work well according to claim 3, characterized in that: The primary lining wall of the lowermost well segment is in a barrel structure.

5. The utility work well of the underground utility tunnel according to claim 1, characterized in that: The first threading pipe and the second threading pipe are arranged on opposite sides of the well body structure.

6. The utility tunnel access shaft of claim 1, wherein: The second threading pipe is sealed with the primary lining wall by a sealing glue, an initial lining hidden beam is arranged between the upper part of the second threading pipe and the primary lining wall, and a secondary lining hidden beam is arranged between the upper part of the second threading pipe and the secondary lining wall.

7. The utility tunnel access shaft of claim 1, wherein: The well segment has three segments.

8. The utility tunnel access shaft of claim 7, wherein: The cover plate assembly comprises two prefabricated cover plates arranged in the same plane and a cast-in-place cover plate fixedly arranged between the two prefabricated cover plates.

9. The utility tunnel access shaft of claim 3, wherein: The two wellhead assemblies are arranged on the two sides of the cover plate assembly and staggered.

10. The utility tunnel access shaft of claim 3, wherein: The closed platform comprises at least two frame beams arranged in a left-right staggered manner. The front and rear ends of the frame beams are fixed to the inner wall of the well body structure. The right wall of the rightmost frame beam is fixed to the right inner wall of the well body structure by a support beam. The rightmost frame beam and the support beam are arranged in a T-shaped structure. The closed platform is a steel grating arranged on part of the top wall of the T-shaped structure and between the adjacent frame beams. The positions of the part of the top wall of the T-shaped structure sealed by the steel grating are arranged in a staggered manner. The other part of the top wall of the T-shaped structure not sealed by the steel grating forms a passage. A pre-embedded steel plate is arranged on the upper part of the frame beam not connected to the support beam. The two climbing ladders extend downward through the passage at each platform assembly. The bottom wall of the well body structure comprises a primary lining wall. A secondary lining bottom plate is arranged on the primary lining wall. A sump is arranged in the middle of the secondary lining bottom plate. A grate is arranged at the opening of the sump. The sump and the secondary lining bottom plate are in a funnel structure. A ring beam is arranged between the cover plate assembly and the top wall of the primary lining wall. The ring beam is fixedly arranged on the secondary lining wall of the uppermost well segment. The ring beam is sealed with the cover plate assembly and the primary lining wall by seat mortar.

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