CN220813282U - A clear water blind drain apron for collecting discharge tunnel sewage - Google Patents
A clear water blind drain apron for collecting discharge tunnel sewage Download PDFInfo
- Publication number
- CN220813282U CN220813282U CN202320919063.1U CN202320919063U CN220813282U CN 220813282 U CN220813282 U CN 220813282U CN 202320919063 U CN202320919063 U CN 202320919063U CN 220813282 U CN220813282 U CN 220813282U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- clear water
- sewage
- tunnel
- collecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000010865 sewage Substances 0.000 title claims abstract description 37
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 7
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000009417 prefabrication Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004588 polyurethane sealant Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a clear water blind drain cover plate for collecting and discharging tunnel sewage, which is characterized in that the cross section of the cover plate is inverted omega-shaped, the middle part of the cover plate is a U-shaped concave section, the left side and the right side of the upper edge of the concave section are provided with side plates inclined to the concave section, the longitudinal front end of the cover plate is provided with a concave head structure, the longitudinal rear end of the cover plate is provided with a convex head structure, and the convex head structures and the concave head structures of adjacent cover plates can be mutually overlapped. The utility model can be used for collecting the flushing sewage in the tunnel, realizes the separation and discharge of the sewage, and can meet the environmental protection requirement; the cover plate combines the functions of the sewage side ditch and the clear water blind ditch cover plate, so that the space in the tunnel can be used for reducing the tunnel excavation section, and the engineering investment is saved; the industrialized prefabrication mode is favorable for transportation, installation and replacement, and the cover plate can be quickly opened when needed without breaking the pavement, so that the influence on traffic can be reduced.
Description
Technical field:
The utility model belongs to the technical field of tunnels and underground engineering, and particularly relates to a clear water blind drain cover plate for collecting and discharging tunnel sewage.
The background technology is as follows:
According to the requirements of the first volume civil engineering (JTG 3370.1-2018) of the design specification of highway tunnels, a longitudinal drainage system is preferably arranged in the tunnel according to the principle of separating and discharging surrounding rock crevice water and operation flushing sewage. The tunnel with the drilling and blasting method is usually designed with two independent drainage systems, and sewage flushing in the tunnel and water separation and discharge of surrounding rock cracks of the tunnel are carried out. In order to meet the requirements of cleaning, separating and discharging in a tunnel, a traditional tunnel design method is to set a sewage side ditch for collecting flushing water in the tunnel and a clear water hidden ditch for collecting surrounding rock crevice water outside a secondary lining structure of the tunnel, wherein the clear water hidden ditch is usually arranged outside a travelling lane range and is positioned below the sewage side ditch, and the following problems exist in actual engineering application at all times: 1) A larger space is reserved in the tunnel to set an independent clear water blind ditch and a sewage side ditch, and the clear water blind ditch is additionally provided with a separation cover plate, so that the tunnel excavation section is enlarged, and the engineering investment is increased; 2) The clear water blind drain maintenance steps are complicated, and the sewage side drain and the clear water blind drain cover plate are required to be lifted in sequence first and then restored in sequence after the maintenance is finished; 3) When the clear water blind ditch is overhauled in the tunnel operation period, a part of driving areas are usually required to be closed for a long time, normal traffic of vehicles is influenced, and even certain traffic safety hidden trouble exists.
The utility model comprises the following steps:
the utility model provides a clear water blind drain cover plate for collecting and discharging tunnel sewage, which is used for realizing the function of sewage side channels, achieving the purposes of intensively utilizing the space in a tunnel, reducing the tunnel excavation size and engineering investment, facilitating the quick overhaul of the clear water blind drain in the tunnel operation stage and reducing the influence on tunnel traffic.
In order to achieve the above object of the present utility model, the following technical solutions are adopted:
A clear water blind drain apron for collecting discharge tunnel sewage, the apron transversal is down omega form, and the middle part is U-shaped concave section, and there is the curb plate of concave section slope downwards in the left and right sides of concave section upper edge, and the apron has concave structure in longitudinal front end, and the longitudinal rear end has protruding structure, and the protruding structure and the concave structure of adjacent apron can overlap joint each other.
Further, the central positions of the left side plate and the right side plate are respectively provided with a lifting hole, a lifting ring is arranged in the lifting holes, the lifting rings are covered with an openable steel cover plate, and the openable steel cover plate is in a normally closed state in a flat state.
Further, the overlapping surface of the convex head structure and the concave head structure, which are overlapped with each other, is coated with epoxy joint glue.
Further, the bottom of the groove of the concave section of the cover plate is provided with a cement mortar layer.
Further, the apron is integrated into one piece's prefabricated reinforced concrete structure.
The further preferable scheme is that the left side plate and the right side plate of the cover plate incline towards the concave section, and the transverse gradient is 0.5% -1%.
Further preferably, the length of the single cover plate is 50-100 cm, the width is 50cm, and the thickness is 8cm.
Further preferably, the diameter of the arc of the inner bottom of the U-shaped concave section is 15-20 cm.
Further preferably, the depth and the height of the raised head structure and the recessed head structure are 4cm.
The utility model has the beneficial effects that:
(1) The clear water blind drain cover plate capable of collecting and discharging tunnel sewage provided by the utility model has the cross section of an inverted omega shape, and the space formed by the concave section can be used for collecting and discharging sewage in the tunnel so as to realize the environmental protection requirement of sewage separation and discharge.
(2) The clear water blind drain cover plate capable of collecting and discharging tunnel sewage can be prefabricated industrially, the service life and quality of the cover plate can be improved, the construction efficiency is improved, quick installation and replacement are realized, the tunnel pavement is not required to be broken, the occupied driving area can be reduced as much as possible, and accordingly the influence on traffic is reduced.
(3) The clean water blind drain cover plate structure capable of collecting and discharging tunnel sewage provided by the utility model can combine the functions of the sewage side drain and the clean water blind drain cover plate, can intensively utilize the space in the tunnel, reduces the tunnel excavation area and saves engineering investment.
(4) The clear water blind drain cover plate capable of collecting and discharging tunnel sewage provided by the utility model has the technical scheme that the adjacent cover plates are mutually overlapped by adopting the concave-convex head structure, and the joint materials are arranged at the joint, so that uneven settlement between the cover plates can be avoided, and flushing sewage is prevented from seeping downwards into the clear water blind drain.
Description of the drawings:
FIG. 1 is a cross-section of a tunnel ditch arrangement in an embodiment;
FIG. 2 is a diagram of a reinforcement of a cover plate structure in an embodiment;
FIG. 3 is a schematic view of a recess of a cover plate in an embodiment;
FIG. 4 is a schematic view of a raised head structure of a cover plate in an embodiment;
fig. 5 is a schematic view of a lifting ring of the cover plate in an embodiment.
The figure shows: 1. cover plate, 2, sewage side ditch, 3, clear water blind ditch, 4, cable ditch, 5, repair canal (cable ditch cover plate), 6, ditch body concrete, 7, longitudinal drain pipe, 8, transverse drain pipe, 9, secondary lining, 10, primary support, 11, prefabricated cover plate reinforcing steel bar, 12, concave head structure, 13, convex head structure, 14, lifting hole, 15, openable steel cover plate, 16, lifting ring, 17, asphalt pavement, 18, cement concrete surface layer, 19, cement concrete base layer, 20, inverted arch backfill.
The specific embodiment is as follows:
The features of the present utility model will be described in further detail below with reference to the accompanying drawings.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is intended to include the plural unless the context clearly indicates otherwise. In the present utility model, the terms such as "upper", "lower", "middle", "front", "rear", "end", etc. refer to the directions or positional relationships based on the directions or positional relationships shown in the drawings, but are merely relational terms used for convenience in describing the structural relationships of the various components or elements of the present utility model, and are not meant to designate any one component or element of the present utility model, and are not meant to limit the present utility model. In a specific embodiment, referring to fig. 1-5, a clear water underdrain cover plate for collecting drain tunnel sewage is designed. The cover plates 1 are positioned outside the range of the traffic lane and are in lap joint with the repair path (cable trench cover plate) 5 in a through length mode, and are shown in fig. 1. Referring to fig. 2 to 5, the cross section of the cover plate 1 is inverted omega-shaped, the middle part of the cover plate is a U-shaped concave section, and side plates inclining to the concave section are arranged at the left side and the right side of the upper edge of the concave section. For convenient transportation and installation, the longitudinal length of the cover plate 1 is 50-100 cm, the width is 50cm, the thickness is 8cm, the diameter of the arc at the inner bottom of the concave section in the middle of the cover plate is 15-20 cm, and the gradient range of the inclination of the left side plate and the right side plate of the cover plate to the concave section is preferably 0.5-1%. The cover plate 1 is an integrally formed precast reinforced concrete structure, the grade of the concrete and the reinforcing steel bars are determined according to the actual condition of engineering, and the reinforcing steel bar arrangement condition is shown in fig. 2. The longitudinal front end of each section cover plate 1 is provided with a concave head structure 12, and the longitudinal rear end is provided with a convex head structure 13, see fig. 3 and 4. The depth and height of the raised head structure and the recessed head structure are both 4cm. The raised structures 13 and the recessed structures 12 of the adjacent segment cover plates 1 can be mutually matched and overlapped, so that a plurality of segment cover plates 1 are longitudinally spliced along the tunnel, and a continuous recessed space formed by the U-shaped recessed sections is used as a sewage side ditch 2 for collecting and discharging flushing sewage in the tunnel. The rectangular space surrounded by the clear water blind drain cover plate and the peripheral drain body concrete 6 is used as the clear water blind drain 3, and after the surrounding rock crevice water outside the secondary lining 9 structure of the tunnel enters the clear water blind drain 3 through the longitudinal drain pipe 7 and the transverse drain pipe 8,
And is discharged out of the tunnel along the longitudinal direction of the tunnel. The central positions of the left side plate and the right side plate are respectively provided with a lifting hole 14, a lifting ring 16 is arranged in the lifting holes, an openable steel cover plate 15 is covered on the lifting holes, and the openable steel cover plate 15 is normally closed when seen in fig. 5.
The construction process of the utility model is described as follows, and the parts not mentioned are all the prior art:
The prefabricated cover plate 1 is transported into a tunnel to carry out site assembly construction through a plurality of procedures such as formwork supporting, steel frame binding, concrete pouring, curing and the like in a prefabrication factory, a raised head structure 13 of a previous section of cover plate is placed above a recessed head structure 12 of a next section of cover plate, epoxy joint glue is smeared on a joint surface where the raised head structure and the recessed head structure are mutually lapped, each section of cover plate 1 is sequentially installed and pressed to form a continuous sewage side ditch 2, and the longitudinal gradient of the sewage side ditch 2 formed by assembling each section of cover plate 1 is consistent with that of a tunnel road. After the installation is finished, the joints among the adjacent cover plates 1, the left side plate and the right side plate of the cover plates, the asphalt pavement 17 and the repair channel (cable trench cover plate) 5 are required to be embedded with polyurethane sealant, and cement mortar is smeared at the central position of the trench bottom of the concave section of the cover plate, so that flushing sewage is prevented from seeping downwards into the lower clear water underdrain 3.
The foregoing is a description of the basic principles, features, and aspects of the present utility model, but is not intended to limit the scope thereof. It should be noted that several variations and modifications can be made without departing from the spirit of the utility model, which is defined in the appended claims and their equivalents.
Claims (9)
1. A clear water blind drain apron for collecting and discharging tunnel sewage, its characterized in that, the apron transversal is down omega form, and the middle part is U-shaped concave section, and there is the curb plate that inclines to concave section on the left and right sides of concave section upper edge, and the apron is indulged the front end and is had concave structure, and it has protruding structure to indulge the rear end, but the protruding structure and the concave structure overlap joint each other of adjacent apron.
2. The cover plate for a clear water drain for collecting and draining sewage from a tunnel according to claim 1, wherein the side plates of the lower concave section which are positioned on the left and right sides of the upper edge of the lower concave section are inclined, the center positions of the side plates are provided with lifting holes, and lifting rings are arranged in the side plates and can open the steel cover plate.
3. The clear water underdrain cover plate for collecting and draining tunnel sewage as recited in claim 1, wherein epoxy joint glue is arranged at the lap joint of the raised head structure and the recessed head structure of adjacent cover plates.
4. The cover plate for a clear water underdrain as recited in claim 1, wherein a bottom of the U-shaped recessed section is provided with a layer of cement mortar.
5. The cover plate for a clear water drain for collecting and draining tunnel sewage according to claim 1, wherein the left and right side plates of the cover plate are inclined to the concave section, and the inclined transverse gradient is 0.5% -1%.
6. The cover plate for a clear water underdrain as recited in claim 1, wherein the cover plate has a length of 50-100 cm, a width of 50cm and a thickness of 8cm.
7. The cover plate for a clear water drain for collecting sewage from a drain tunnel according to claim 1, wherein the diameter of the arc of the inner bottom of the U-shaped concave section is 15-20 cm.
8. The cover plate for a clear water drain for collecting and draining tunnel sewage according to claim 1, wherein the depth and the height of the raised head structure and the recessed head structure are 4cm.
9. The cover plate for a clear water underdrain as recited in claim 1, wherein said cover plate is an integrally formed precast reinforced concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320919063.1U CN220813282U (en) | 2023-04-21 | 2023-04-21 | A clear water blind drain apron for collecting discharge tunnel sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320919063.1U CN220813282U (en) | 2023-04-21 | 2023-04-21 | A clear water blind drain apron for collecting discharge tunnel sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220813282U true CN220813282U (en) | 2024-04-19 |
Family
ID=90709938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320919063.1U Active CN220813282U (en) | 2023-04-21 | 2023-04-21 | A clear water blind drain apron for collecting discharge tunnel sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220813282U (en) |
-
2023
- 2023-04-21 CN CN202320919063.1U patent/CN220813282U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20060165489A1 (en) | Structure of intermediate wall of three arch excavated tunnel and method for constructing the same | |
| JP2000511978A (en) | Composite concrete metal stiffeners for metal plate arched structures | |
| CN111365018B (en) | Cover arch reinforcement method suitable for small tunnel clearance | |
| CN111778864A (en) | Bridge with small box girders prefabricated in longitudinal sections and construction method | |
| CN111877182B (en) | Novel construction method for upper structure of multi-chamber continuous UHPC box girder bridge | |
| CN111271087B (en) | Construction method for arch prefabricated lining structure with post-cast strip connection | |
| CN104947714A (en) | End sealing door structure for immersed tube tunnel | |
| CN113668612A (en) | Modular combined prefabricated electric power working well and construction method thereof | |
| CN114673169A (en) | Multi-layer large-span deep foundation pit cover-excavation forward-backward combined construction method for urban core area | |
| CN220813282U (en) | A clear water blind drain apron for collecting discharge tunnel sewage | |
| CN112012763B (en) | Construction method of double-layer primary support multi-arch tunnel structure | |
| CN212452316U (en) | Bridge with small box girders prefabricated in longitudinal sections | |
| CN112900294A (en) | Lining structure for box culvert repair and construction method thereof | |
| CN110056071B (en) | Municipal rainwater pipeline assembly module and construction method | |
| CN215108944U (en) | Arch subway station is opened up and is built structure of plugging into | |
| CN212103531U (en) | Environment-friendly temporary road system | |
| CN113187487B (en) | Construction method of double-layer full-section frozen underground excavation station structure of subway | |
| CN210599100U (en) | There is tiny fragments of stone, coal, etc. tunnel center ditch manhole | |
| CN212477466U (en) | Large-span culvert structure and prefabricated box culvert | |
| CN210104806U (en) | Basement outer wall post-cast strip closed in advance | |
| CN215948100U (en) | Underdrain reinforcing combination system | |
| CN218406755U (en) | Subsection connection structure of prefabricated overhaul channel of subway | |
| CN114395984B (en) | Girder construction method of bridge-tunnel cooperative construction structure | |
| CN212195397U (en) | Assembled carwash groove | |
| CN114382011B (en) | Beam-free construction method of bridge-tunnel cooperative construction structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |