CN212250137U - Waterproof type lining cutting of active control pressure - Google Patents
Waterproof type lining cutting of active control pressure Download PDFInfo
- Publication number
- CN212250137U CN212250137U CN202020699289.1U CN202020699289U CN212250137U CN 212250137 U CN212250137 U CN 212250137U CN 202020699289 U CN202020699289 U CN 202020699289U CN 212250137 U CN212250137 U CN 212250137U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pipe
- lining
- drainage
- tunnel
- 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
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model belongs to the technical field of tunnel design and construction technique and specifically relates to a waterproof type lining cutting of active control pressure, waterproof lining cutting body sets up water drainage pipeline outward, and water drainage pipeline is connected with the wall bushing and constitutes the intercommunication, and in the wall bushing runs through tunnel lining cutting and converges the escape canal in the tunnel, is provided with pressure relief device on the wall bushing, the intercommunication state between pressure relief device control wall bushing and the escape canal. The utility model has the advantages that: 1) according to the design pressure control standard, a protective measure for actively discharging pressure to prevent the structural body from being damaged when the external water level is influenced by the natural environment and the pressure change is large is solved; 2) the underground water is discharged according to the need from the design aspect, so that the ecological environment is protected, the structural design boundary is clear, the excessive structural reinforcement of the lining design standard which contains the extreme pressure state standard can be effectively reduced, the investment is reduced, and the structural safety is protected.
Description
Technical Field
The utility model belongs to the technical field of tunnel design and construction technique and specifically relates to a waterproof type lining cutting of active control pressure.
Background
The foundation construction project blooms all the time, the tunnel buries deeply and deeply, the requirement on environmental protection is higher and higher, and a waterproof lining structure is needed to be adopted when underground water needs to be effectively protected in a water source culvert and a high-level protection area. The tunnel crossing conditions are more and more complex, the basic data accumulation is severe in environment due to large span of a project area, the historical data accumulation is less, and the main problem to be solved at present is to ensure the whole life cycle of the structure to be safe to use and reasonably save investment through short-term collection and deduction confirmation. The design water pressure of the tunnel in the hilly mountain of the hilly mountain is influenced by the height difference of peripheral mountains, seasonal rainwater conditions and the like, and the design boundary conditions change greatly. The design structure needs to be greatly strengthened according to the whole life cycle, but the load-bearing times are limited, the working condition service efficiency is low, the investment is large, and effective measures need to be fully utilized in the design.
Disclosure of Invention
The utility model aims at providing a waterproof type lining cutting of active control pressure according to above-mentioned prior art not enough, make the outer groundwater of lining cutting discharge by the escape canal in the tunnel after can assembling through setting up drainage system to realize the off-load of lining cutting, guarantee the structural strength of lining cutting and improve its factor of safety.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a waterproof type lining cutting of active control pressure, includes the lining cutting body, the lining cutting body is strutted in tunnel periphery, its characterized in that: the lining structure is characterized in that a drainage pipeline is arranged outside the lining body, the drainage pipeline is connected with a wall penetrating pipe and forms communication, the wall penetrating pipe penetrates through the tunnel and converges into a drainage ditch in the tunnel, a pressure relief device is arranged on the wall penetrating pipe, and the pressure relief device controls the communication state between the wall penetrating pipe and the drainage ditch.
The pressure relief device comprises a pressure gauge, a controllable switch valve and a constant pressure relief device which are sequentially arranged along the water flow direction of the through-wall pipe, wherein the pressure gauge is used for measuring the water pressure in the through-wall pipe, the controllable switch valve is used for controlling the communication state between the through-wall pipe and the drainage ditch, and the constant pressure relief device can be used for controlling the opening and closing state of the controllable switch valve according to the measurement data of the pressure gauge.
The drainage pipeline is a circumferential drainage pipe and a longitudinal drainage pipe which are arranged outside the lining body, and the circumferential drainage pipe is communicated with the longitudinal drainage pipe and is collected in the wall penetrating pipe.
And a one-way maintenance valve is arranged on the water drainage pipeline.
An application method of the waterproof lining related to the active pressure control is characterized in that: when the water pressure outside the lining body reaches a set value through the measurement of a pressure gauge, the constant pressure relief device automatically opens the controllable switch valve to automatically drain water; when the pressure outside the lining body is reduced and drainage is not needed, the controllable switch valve can be closed actively to stop drainage.
And the drainage pipeline is backwashed by pouring a dissolved crystallization solution into the one-way maintenance valve.
The utility model has the advantages that: 1) the water level pressure control standard is designed, and a protective measure for preventing the structural body from being damaged by actively beating and pressing when the external water pressure changes greatly is solved; 2) the underground water is discharged according to the need from the design aspect, so that the ecological environment is protected, the structural design boundary is clear, the excessive structural strengthening investment which does not meet the standards exceeding the design age limit can be effectively reduced, and the structural safety is protected; 3) reasonable pressure standard can be set, the equipment can be replaced, and the maintenance and protection are convenient; 4) an interface is provided for tunnel e-management.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of the present invention;
fig. 2 is a schematic view of the longitudinal section structure of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-2, the labels 1-15 are respectively shown as: the device comprises a primary support 1, a geotextile buffer layer 2, a porous shell type annular blind pipe 3, a PVC waterproof board 4, a geotextile protective layer 5, secondary lining concrete 6, a wall penetrating pipe 7, a pressure release valve 8, a pressure gauge 9, a controllable switch valve 10, a constant pressure release device 11, a tunnel drainage ditch 12, a buffer layer and waterproof layer 13, a longitudinal blind pipe 14 and a one-way maintenance valve 15.
Example (b): the active pressure control waterproof lining in the embodiment can realize underground water unloading for generating pressure on the lining, thereby ensuring the structural strength of the lining and improving the safety coefficient of the lining.
Specifically, as shown in fig. 1, a lining is arranged on the periphery of the tunnel, and the lining sequentially comprises a primary support 1, a geotextile buffer layer 2, a porous shell type annular blind pipe 3, a PVC waterproof plate 4, a geotextile protective layer 5 and two lining concretes 6 from outside to inside. The primary support 1 and the secondary lining concrete 6 are main structures of the lining. Porous shell formula hoop blind pipe 3 is as a part in the drainage system of waterproof type lining cutting in this embodiment, it assembles groundwater in the hoop, both sides at porous shell formula hoop blind pipe 3 are provided with geotechnological cloth buffer layer 2 and PVC waterproof board 4 respectively, wherein geotechnological cloth buffer layer 2 is used for buffering the pressure of preliminary bracing 1 to porous shell formula hoop blind pipe 3, avoid porous shell formula hoop blind pipe 3 to receive too big pressure and take place to damage, thereby improve its life when guaranteeing porous shell formula hoop blind pipe 3 result of use, and PVC waterproof board 4 is then used for avoiding the inside seepage of groundwater. The geotextile protective layer 5 is arranged on the inner side of the PVC waterproof board 4, the geotextile protective layer 5 is mainly used for protecting the porous shell type annular blind pipe 3 and the PVC waterproof board 4 on the outer side of the geotextile protective layer, the geotextile buffer layer 2 and the PVC waterproof board 4 are prevented from being influenced by the secondary lining concrete 6, and the geotextile buffer layer 2 and the PVC waterproof board 4 are the buffer layer and the waterproof layer 13 shown in the figure 2.
Referring to fig. 1 and 2, the drainage system in this embodiment further includes longitudinal blind pipes 14 in addition to the porous shell type circumferential blind pipes 3, the longitudinal blind pipes 14 are arranged along the lining circumferential direction, and these longitudinal blind pipes 14 are used for connecting a plurality of porous shell type circumferential blind pipes 3 arranged at intervals along the lining, so that these porous shell type circumferential blind pipes 3 can be connected therewith to form a communicating pipe, thereby facilitating the collection and drainage of groundwater. As shown in fig. 1, the groundwater collected through the longitudinal blind pipes 14 may flow into the tunnel gutters 12 through the wall pipes 7 and be discharged through the tunnel gutters 12, wherein the wall pipes 7 are disposed through the tunnel.
As shown in fig. 1, a pressure release valve 8 is provided in the pipe of the through-wall pipe 7, and the pressure release valve 8 is used for controlling the communication state between the through-wall pipe 7 and the tunnel drainage ditch 12, i.e. whether the through-wall pipe 7 is opened for drainage or closed for drainage. As shown in fig. 1, the pressure relief valve 8 includes a pressure gauge 9, a controllable switch valve 10, and a constant pressure relief device 11, wherein the pressure gauge 9 is used for measuring the water pressure in the through-wall pipe 7, the controllable switch valve 10 is used for actually controlling the flow state of the through-wall pipe 7, and the constant pressure relief device 11 is used for collecting the measurement data of the pressure gauge 9.
When the measured data of the pressure gauge 9 shows that the water pressure of the through-wall pipe 7 reaches the designed pressure threshold set by the constant pressure relief device 11, the constant pressure relief device 11 controls the controllable switch valve 10 to be opened, at the moment, the through-wall pipe 7 starts to drain water, namely, the underground water collected by the porous shell type annular blind pipe 3 and the longitudinal blind pipe 14 is discharged into the tunnel drainage ditch 12. And when the normal water pressure is lower than the design pressure threshold, the controllable switch valve 10 is in a closed state.
In a specific application of the embodiment, the method includes the following steps:
when the water pressure outside the lining body reaches a set value through the measurement of the pressure gauge 9, the constant pressure relief device 11 automatically opens the controllable switch valve 10 to carry out automatic drainage;
when the outside of the lining body needs to be drained, the controllable switch valve 10 can be actively opened to conduct active drainage;
and the controllable switch valve 10 can be closed actively to stop draining when the pressure outside the lining body is reduced and the draining is not needed.
That is to say, the lining can be unloaded by adopting an active or automatic mode so as to adapt to the requirements of different actual working conditions, thereby further ensuring the structural stability and the safety of the lining.
As shown in fig. 2, a one-way maintenance valve 15 is further arranged on the longitudinal blind pipe 14 at intervals, and the one-way direction of the one-way maintenance valve 15 means that only liquid can be poured into the longitudinal blind pipe 14 from the one-way maintenance valve 15, but the groundwater in the longitudinal blind pipe 14 cannot flow out from the one-way maintenance valve 15. In specific implementation, the one-way maintenance valve 15 is arranged, so that liquid for dissolving the crystallization solution can be poured into the longitudinal blind pipe 14 through the one-way maintenance valve 15 in a dry season to reversely flush the longitudinal blind pipe 14, and therefore blockage caused by foreign matters is avoided, and the pipeline is always kept in a smooth state.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.
Claims (4)
1. The utility model provides a waterproof type lining cutting of active control pressure, includes the lining cutting body, the lining cutting body is strutted in tunnel periphery, its characterized in that: the lining structure is characterized in that a drainage pipeline is arranged outside the lining body, the drainage pipeline is connected with a wall penetrating pipe and forms communication, the wall penetrating pipe penetrates through the tunnel and converges into a drainage ditch in the tunnel, a pressure relief device is arranged on the wall penetrating pipe, and the pressure relief device controls the communication state between the wall penetrating pipe and the drainage ditch.
2. An actively controlled pressure waterproof lining as claimed in claim 1 wherein: the pressure relief device comprises a pressure gauge, a controllable switch valve and a constant pressure relief device which are sequentially arranged along the water flow direction of the through-wall pipe, wherein the pressure gauge is used for measuring the water pressure in the through-wall pipe, the controllable switch valve is used for controlling the communication state between the through-wall pipe and the drainage ditch, and the constant pressure relief device can be used for controlling the opening and closing state of the controllable switch valve according to the measurement data of the pressure gauge.
3. An actively controlled pressure waterproof lining as claimed in claim 1 wherein: the drainage pipeline is a circumferential drainage pipe and a longitudinal drainage pipe which are arranged outside the lining body, and the circumferential drainage pipe is communicated with the longitudinal drainage pipe and is collected in the wall penetrating pipe.
4. An actively controlled pressure waterproof lining as claimed in claim 3 wherein: and a one-way maintenance valve is arranged on the water drainage pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020699289.1U CN212250137U (en) | 2020-04-30 | 2020-04-30 | Waterproof type lining cutting of active control pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020699289.1U CN212250137U (en) | 2020-04-30 | 2020-04-30 | Waterproof type lining cutting of active control pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212250137U true CN212250137U (en) | 2020-12-29 |
Family
ID=73996690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020699289.1U Active CN212250137U (en) | 2020-04-30 | 2020-04-30 | Waterproof type lining cutting of active control pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212250137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322112A (en) * | 2020-04-30 | 2020-06-23 | 中铁上海设计院集团有限公司 | Waterproof lining capable of actively controlling pressure and application method thereof |
| CN113417674A (en) * | 2021-07-30 | 2021-09-21 | 同济大学 | Water pressure resistant device capable of adjusting and limiting high-water-pressure-discharge tunnel pressure in subareas |
-
2020
- 2020-04-30 CN CN202020699289.1U patent/CN212250137U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322112A (en) * | 2020-04-30 | 2020-06-23 | 中铁上海设计院集团有限公司 | Waterproof lining capable of actively controlling pressure and application method thereof |
| CN113417674A (en) * | 2021-07-30 | 2021-09-21 | 同济大学 | Water pressure resistant device capable of adjusting and limiting high-water-pressure-discharge tunnel pressure in subareas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111322112A (en) | Waterproof lining capable of actively controlling pressure and application method thereof | |
| CN212250137U (en) | Waterproof type lining cutting of active control pressure | |
| CN211228626U (en) | Automatic pressure relief device for anti-floating of basement bottom plate | |
| CN205557464U (en) | Type of can decontaminating intelligence flood control dam | |
| CN207017319U (en) | A kind of waterproof construction of waterproof or weak permeable place building foundation pit | |
| CN205840166U (en) | A kind of prevent unrestrained water gutter for steel building roofing | |
| CN207469194U (en) | Lift adjustment dropping equipment | |
| CN210315898U (en) | Continuous winding glass fiber reinforced plastic sewage deep tunnel pipeline | |
| CN201635068U (en) | Drainage system for land reclamation from sea | |
| CN111945676B (en) | Water tank, gate opening and closing device and control method of gate opening and closing device | |
| CN210482395U (en) | Basement drainage blind ditch | |
| CN209368854U (en) | Foundation pit side-wall infiltration current-collecting device | |
| CN208996003U (en) | Power station outlet vertical shaft with discharge structure | |
| CN207761710U (en) | One kind being used for seasonal frost region tunnel portal section center pipe trench structure | |
| CN207063010U (en) | A kind of hypogee treating seepage water drainage structure | |
| CN107059948B (en) | Reset processing method and system for floating open cut tunnel structure | |
| CN112030905A (en) | Structure for emptying and taking water by using diversion tunnel and control method | |
| CN110700206A (en) | Overhauling system and implementation method of large-water-depth scoop type stilling pool | |
| CN215483041U (en) | Intelligent green drainage system of deep basal pit engineering | |
| CN218562264U (en) | Drainage structure of diversion vent hole | |
| CN216973464U (en) | Emergent inspection shaft of hydrophobic french drain of basement bottom plate | |
| CN220167131U (en) | Pressure relief system for basement waterproof board | |
| CN219909026U (en) | Basement seepage treatment structure | |
| CN108643235B (en) | Underwater tunnel wastewater pump room | |
| CN217419871U (en) | Rain and sewage diversion system in fire dike of oil tank field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |