CN207295638U - The draining deep layer tunnel of small flow channel is set - Google Patents
The draining deep layer tunnel of small flow channel is set Download PDFInfo
- Publication number
- CN207295638U CN207295638U CN201721327995.8U CN201721327995U CN207295638U CN 207295638 U CN207295638 U CN 207295638U CN 201721327995 U CN201721327995 U CN 201721327995U CN 207295638 U CN207295638 U CN 207295638U
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- CN
- China
- Prior art keywords
- tunnel
- small flow
- flow channel
- main body
- deep layer
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Abstract
The utility model discloses a kind of draining deep layer tunnel for setting small flow channel, including：Tunnel main body, its section are circle；The block of two strips, what the length direction of its along the tunnel main body was spaced is symmetricly set on the tunnel bottom part body；A groove for the circulation of small flow current is formed between two blocks；The bottom of each block is bonded the tunnel bottom part body and sets, and two block sides relative to each other are vertically arranged.The utility model is in the case of deep tunnel evacuation procedure later stage flow is less after the rain, form higher flow velocity, if necessary erosion and deposition current are formed in deep tunnel starting point moisturizing after the emptying of deep tunnel, continue to carry out waterpower self-cleaning to deep layer tunnel silt, silt is rinsed current and takes to after tunnel tail end through the deep tunnel of sand pump discharge, silting phenomenon can be mitigated, reduce the dredging difficulty of deep tunnel, pipe is reduced and form this.
Description
Technical field
It the utility model is related to deep layer tunnel field, more particularly to a kind of draining deep layer tunnel that small flow channel is set.
Background technology
Deep tunnel engineering is the lifting and in-depth on the basis of the original pipe network of harnessing the river in city.According to the preliminary design side of deep tunnel
Case, usually has the function of that combined sewage is regulated and stored, drains flooded fields, transferred.Pollution for cutting down just rain, can make full use of existing shallow-layer
On the basis of drainage system conveying capacity, the combined sewage of shallow-layer drainage system overflow is adjusted using deep layer tunnel system
Store.Shallow-layer sewer system is pumped into by deep layer tunnel drain pump after rain, is transported to sewage treatment plant's processing.When lasting drop
When rain causes basin perimeter to have water logging risk, start deep layer tunnel tail end water drainage pump group and exercise function of flood drainage.Deep tunnel is played and regulated and stored
During function, current are substantially static in tunnel, and silt easily deposits in tunnel floor.After rain in deep tunnel evacuation procedure, because row
Empty pump discharge is small, and deep tunnel flow section is big, therefore water velocity is low, and silt is difficult to start up.With conventional municipal drainage pipeline
Compare, tunnel size is big, and buried depth is also relatively deep, and operating condition is complicated, therefore its clear pipe of dredging supports difficulty than conventional municipal drainage pipeline
It is much larger.No matter take artificial dredging or carry out mechanical dredging using special equipment, the technical difficulty and cost of dredging are all very
Greatly.
Utility model content
One purpose of the utility model is to solve at least the above, and provides the advantages of at least will be described later.
The utility model also has a purpose to be to provide a kind of draining deep layer tunnel for setting small flow channel, including：
Tunnel main body, its section are circle；
The block of two strips, what the length direction of its along the tunnel main body was spaced is symmetricly set on the tunnel
Hole bottom part body；A groove for the circulation of small flow current is formed between two blocks；The bottom fitting institute of each block
The setting of tunnel bottom part body is stated, two block sides relative to each other are vertically arranged.
Preferably, the draining deep layer tunnel of the small flow channel of setting, further includes：
The deflector of two strips, it is corresponded with described two blocks；Length of the deflector along the tunnel main body
Direction is spent to set；
The bottom surface of the deflector is attached at the inner wall of tunnel main body, and deflector one end is set up, and the other end connects downwards
Connect corresponding block；With being progressively stepped up close to corresponding block, the thickness of the deflector；
Multiple diversion trenches, it is intervally installed on the deflector, and each diversion trench is each parallel to the tunnel master
The circumferencial direction of body；Each diversion trench is recessed downwards the groove of formation by deflector.
Preferably, the draining deep layer tunnel of the small flow channel of setting, the block inside set multiple holes.
Preferably, the draining deep layer tunnel of the described small flow channel of setting, the groove formed between described two blocks
Depth be tunnel main body radius 1/5-1/4.
Preferably, the draining deep layer tunnel of the described small flow channel of setting, the groove formed between described two blocks
Width be tunnel main body radius 1/8-1/6.
Preferably, the draining deep layer tunnel of the small flow channel of setting, the section of the diversion trench is arc-shaped.
The utility model includes at least following beneficial effect：The deep tunnel evacuation procedure later stage less situation of flow after the rain
Under, higher flow velocity is formed, erosion and deposition current is formed in deep tunnel starting point moisturizing after the emptying of deep tunnel if necessary, continues to deep layer tunnel
Silt carries out waterpower self-cleaning, and silt is rinsed current and takes to after tunnel tail end discharges deep tunnel through sand pump,
Silting phenomenon can be mitigated, reduce the dredging difficulty of deep tunnel, pipe is reduced and form this.
The further advantage, target and feature of the utility model embody part by following explanation, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Brief description of the drawings
Fig. 1 is the structure diagram of the draining deep layer tunnel of the utility model；
Fig. 2 is the structure diagram of the deflector of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to explanation
Book word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or its combination.
In the description of the utility model, term " transverse direction ", " longitudinal direction ", " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on orientation shown in the drawings or
Position relationship, is for only for ease of description the utility model and simplifies description, is not instruction or implies signified device or member
Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
As shown in Figure 1, the utility model provides a kind of draining deep layer tunnel for setting small flow channel, including：
Tunnel main body 1, its section are circle；
The block 2 of two strips, what the length direction of its along the tunnel main body 1 was spaced is symmetricly set on described
Tunnel bottom part body；A groove for the circulation of small flow current is formed between two blocks 2；The bottom patch of each block 2
Close 1 bottom of tunnel main body to set, two sides relative to each other of block 2 are vertically arranged.
In another embodiment, as shown in Figure 1, 2, the draining deep layer tunnel of the small flow channel of setting, further includes：
The deflector 3 of two strips, it is corresponded with described two blocks 2；Deflector 3 is along the tunnel main body 1
Length direction set；
The bottom surface of the deflector 3 is attached at the inner wall of tunnel main body 1, and 3 one end of deflector is set up, and the other end is downward
Connect corresponding block 2；With being progressively stepped up close to corresponding block 2, the thickness of the deflector 3；
Multiple diversion trenches 4, it is intervally installed on the deflector 3, and each diversion trench 4 is each parallel to the tunnel
The circumferencial direction of main body 1；Each diversion trench 4 is by the groove that depression is formed downwards of deflector 3.
In another embodiment, the draining deep layer tunnel of the small flow channel of setting, the inside of block 2 sets more
A hole.
In another embodiment, the draining deep layer tunnel of the small flow channel of setting, the section of the diversion trench 4 is
Arc-shaped.
The utility model sets small flow channel in tunnel bottom part body, and deep tunnel evacuation procedure later stage flow is less after the rain
In the case of, higher flow velocity is formed, erosion and deposition current is formed in deep tunnel starting point moisturizing after the emptying of deep tunnel if necessary, continues to deep layer
Tunnel silt carries out waterpower self-cleaning, and silt is rinsed after current take tunnel tail end to and is discharged deeply through sand pump
Tunnel, you can mitigate silting phenomenon, reduce the dredging difficulty of deep tunnel, reduce pipe and form this.And since deep layer tunnel uses
Shield-tunneling construction, tunnel section outer contour are circle, and bear larger internal water pressure and pressure from surrounding rock, it is impossible to as shallow-layer canal case or
Bottom local subsidence is formed small flow channel by culvert pipe like that, therefore the method being locally filled with using bottom forms small flow channel.Deep tunnel
Radius set small flow channel to take according to design maximum stream flow and considering flow section after determine, the width b of small flow channel
Reach sediment moving incipient velocity according to the smaller time slot interior energy of flow with depth h to determine, sediment moving incipient velocity is according to actual silt grain
Footpath data is calculated by empirical equation.Moisturizing erosion and deposition flow is determined according to the flow speed value that small flow channel domestic demand reaches, when washing away
Length is determined according to main tunnel length and erosion and deposition efficiency.Above-mentioned parameter is verified and optimized as necessary by model test is carried out；
And deflector 3 is provided with inner side, multiple diversion trenches are set on deflector 3, the water of small flow can be flowed into
Row effectively collects, and carries out water conservancy diversion.
Although the embodiment of the utility model is disclosed as above, it is not restricted in specification and embodiment
Listed utilization, it can be applied to the field of various suitable the utility model completely, for those skilled in the art,
Other modification is easily achieved, therefore under the universal limited without departing substantially from claim and equivalency range, this reality
Specific details is not limited to new and shown here as the legend with description.
Claims (6)
- A kind of 1. draining deep layer tunnel that small flow channel is set, it is characterised in that including：Tunnel main body, its section are circle；The block of two strips, what the length direction of its along the tunnel main body was spaced is symmetricly set on the tunnel master Body bottom；A groove for the circulation of small flow current is formed between two blocks；The bottom of each block is bonded the tunnel Hole bottom part body is set, and two block sides relative to each other are vertically arranged.
- 2. the draining deep layer tunnel of small flow channel is set as claimed in claim 1, it is characterised in that further include：The deflector of two strips, it is corresponded with described two blocks；Length side of the deflector along the tunnel main body To setting；The bottom surface of the deflector is attached at the inner wall of tunnel main body, and deflector one end is set up, the other end downwards connection with Its corresponding block；With being progressively stepped up close to corresponding block, the thickness of the deflector；Multiple diversion trenches, it is intervally installed on the deflector, and each diversion trench is each parallel to the tunnel main body Circumferencial direction；Each diversion trench is recessed downwards the groove of formation by deflector.
- 3. the draining deep layer tunnel of small flow channel is set as claimed in claim 1, it is characterised in that set inside the block Multiple holes.
- 4. the draining deep layer tunnel of small flow channel is set as claimed in claim 1, it is characterised in that between described two blocks The depth of the groove of formation is the 1/5-1/4 of tunnel main body radius.
- 5. the draining deep layer tunnel of small flow channel is set as claimed in claim 1, it is characterised in that between described two blocks The width of the groove of formation is the 1/8-1/6 of tunnel main body radius.
- 6. the draining deep layer tunnel of small flow channel is set as claimed in claim 2, it is characterised in that the section of the diversion trench For arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721327995.8U CN207295638U (en) | 2017-10-16 | 2017-10-16 | The draining deep layer tunnel of small flow channel is set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721327995.8U CN207295638U (en) | 2017-10-16 | 2017-10-16 | The draining deep layer tunnel of small flow channel is set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207295638U true CN207295638U (en) | 2018-05-01 |
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ID=62415225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721327995.8U Expired - Fee Related CN207295638U (en) | 2017-10-16 | 2017-10-16 | The draining deep layer tunnel of small flow channel is set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207295638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080366A (en) * | 2019-04-15 | 2019-08-02 | 河海大学 | It is a kind of to regulate and store the bed protection structure of tunnel waterpower sand discharge dredging for deep layer |
-
2017
- 2017-10-16 CN CN201721327995.8U patent/CN207295638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080366A (en) * | 2019-04-15 | 2019-08-02 | 河海大学 | It is a kind of to regulate and store the bed protection structure of tunnel waterpower sand discharge dredging for deep layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20181016 |