CN111119995B - Dynamic monitoring and dredging drainage system and method for water pressure and flow velocity at back of tunnel lining - Google Patents
Dynamic monitoring and dredging drainage system and method for water pressure and flow velocity at back of tunnel lining Download PDFInfo
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- CN111119995B CN111119995B CN202010112058.0A CN202010112058A CN111119995B CN 111119995 B CN111119995 B CN 111119995B CN 202010112058 A CN202010112058 A CN 202010112058A CN 111119995 B CN111119995 B CN 111119995B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 238000012544 monitoring process Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007689 inspection Methods 0.000 claims description 24
- 239000010865 sewage Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
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- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 230000008859 change Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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Abstract
The invention discloses a dynamic monitoring and dredging drainage system and a dynamic monitoring and dredging drainage method for water pressure and flow velocity at the back of a tunnel lining, which comprises the following steps: the seepage water at the back of the lining enters the main drainage pipe under the drainage action of a plurality of drainage pipes of the annular drainage pipe, enters the longitudinal drainage pipe through the main drainage pipe and is discharged out of the tunnel through the longitudinal drainage pipe; when the interior of the longitudinal drainage pipe is blocked, the flow velocity sensor and the pressure sensor transmit abnormal signals, then acting force is applied to the rotor in the dredging structure, so that the rotor can move in the longitudinal drainage pipe in a directional mode, dirt in the longitudinal drainage pipe is pushed to the dirt discharging structure, and the longitudinal drainage pipe is dredged. The longitudinal water discharge pipes are distributed along the length direction of the longitudinal water discharge pipes and are arranged corresponding to the rotor in position, so that the divided-area monitoring and the divided-area dredging of the tunnel are realized, the silting paragraph is accurately positioned and the desilting work is timely carried out, and the operation and the maintenance of the tunnel are easier to realize.
Description
Technical Field
The invention relates to the technical field of highway tunnel construction and operation maintenance, in particular to a dynamic monitoring and dredging drainage method for water pressure and flow velocity at the back of a tunnel lining.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The tunnel water-proof and drainage engineering is an important work in the tunnel construction and operation period, the tunnel water leakage is one of the main defects of the tunnel in the operation period, and the theory of ten tunnels and nine leaks is provided. At present, the existing tunnel circumferential drainage system is single, mainly comprises a circumferential spring blind pipe, the coverage area of the blind pipe is small, the blind pipe has no flow collection function, and water flow at the back of a tunnel lining cannot effectively flow into the longitudinal drainage pipe; the tunnel back-attached water stop strip is usually only used for waterproof treatment at tunnel construction joints and settlement joints, has no diversion function, and when the back-attached water stop strip is poor in construction quality, back lining running water often permeates into the tunnel through the construction joints.
When extreme meteorological disasters such as sudden downburst rainstorm and the like occur, because a tunnel waterproof system is in saturated operation, accumulated water behind a lining cannot be discharged in time, water pressure is increased rapidly in a short time, the tunnel lining bears higher water pressure, the tunnel lining is cracked and a waterproof board fails, and at the moment, a treatment scheme is usually to drill holes in the lining for discharging water, so that the water pressure behind the lining is reduced, but the drilling holes can cause structural damage of the lining; simultaneously when the longer back of tunnel operation time, vertical drainage system often appears local blocking phenomenon, leads to crossing the water section and reduces, and drainage ability greatly reduced also can lead to tunnel lining water pressure behind one's back to increase, leads to drainage system to damage, because tunnel behind one's back drainage system is located inside tunnel lining, the drain pipe blocks up the position and is difficult to discover, consequently can not clear up the plug in time.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide a method for dynamically monitoring water pressure and flow rate of a tunnel lining rear drainage system and dredging and guiding drainage.
To solve the above technical problems, one or more embodiments of the present invention provide the following technical solutions:
one aspect of the present invention provides a dynamic monitoring and dredging drainage system for water pressure and flow velocity behind a tunnel lining, comprising: a circumferential flow guide drainage system, a longitudinal drainage system and a water pressure-flow rate monitoring system, wherein,
the annular flow guide drainage system is arranged between the primary tunnel supporting structure and the secondary tunnel lining and comprises a plurality of annular drainage pipes which are distributed in the length direction of the tunnel, and each annular drainage pipe is arranged along the annular direction of the tunnel; the annular drainage pipe comprises a drainage main pipe and a plurality of drainage pipes, the drainage pipes are distributed in the length direction of the drainage main pipe in a branching manner, a main pipe spring is arranged in the drainage main pipe, and a drainage pipe spring is arranged in the drainage pipe;
the longitudinal drainage system is arranged along the longitudinal direction of the tunnel, is arranged between the primary tunnel supporting structure and the secondary tunnel lining, and comprises a longitudinal drainage pipe and a dredging structure, the dredging structure comprises a plurality of movers arranged in the longitudinal drainage pipe and a sewage discharge structure arranged on the longitudinal drainage pipe, and the movers move to convey sewage in the longitudinal drainage pipe to the sewage discharge structure to be discharged; the annular drain pipe and the back-attached water stop are connected with the longitudinal drain pipe;
the water pressure-flow rate monitoring systems are distributed at different positions of the longitudinal drain pipe and comprise connecting pipelines and monitoring chambers, one ends of the connecting pipelines are connected with the longitudinal drain pipe, the other ends of the connecting pipelines extend upwards to the monitoring chambers, displays arranged at the ends of the connecting pipelines are respectively connected with flow rate sensors and pressure sensors arranged in the connecting pipelines, and the monitoring chambers are provided with observation ports;
the rotor is arranged corresponding to the water pressure-flow rate monitoring system.
The second aspect of the invention provides a dynamic monitoring and dredging drainage method for water pressure and flow velocity behind a tunnel lining, which comprises the following steps:
the seepage water at the back of the lining enters the main drainage pipe under the drainage action of a plurality of drainage pipes of the annular drainage pipe, enters the longitudinal drainage pipe through the main drainage pipe and is discharged out of the tunnel through the longitudinal drainage pipe;
when the interior of the longitudinal drainage pipe is blocked, the flow velocity sensor and the pressure sensor transmit abnormal signals, then acting force is applied to the rotor in the dredging structure, so that the rotor can move in the longitudinal drainage pipe in a directional mode, dirt in the longitudinal drainage pipe is pushed to the dirt discharging structure, and the longitudinal drainage pipe is dredged.
Compared with the prior art, the beneficial effects of the above one or more embodiments of the invention are as follows:
1. the water pressure-flow velocity monitoring system is distributed along the length direction of the longitudinal drain pipe and is arranged corresponding to the rotor, so that the regional monitoring and regional dredging of the tunnel are realized, the siltation section is accurately positioned, the desilting work is timely performed, and the operation and maintenance of the tunnel are easier to realize;
2. a plurality of branch drainage tubes are arranged on the circumferential drainage pipe of the circumferential flow guide drainage system, so that large-scale water seepage drainage can be performed into the circumferential drainage pipe, and the drainage capability of water collection behind the lining is improved.
3. The water pressure-flow velocity monitoring system can monitor the water pressure and the flow velocity in the longitudinal drain pipe, and can judge whether the drainage system runs in a full load state or not in sudden conditions such as rainstorm according to the change of the water pressure flow velocity so as to judge whether water flow behind the lining is introduced outside a roadside ditch or a tunnel hole by accessing other drainage pipes.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic structural diagram of a front view of a dynamic monitoring and drainage system for water pressure and flow velocity behind a tunnel lining according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a side-expanded view of a dynamic monitoring and drainage system for water pressure and flow velocity behind a tunnel lining according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a back-attachment water stop according to an embodiment of the present invention;
FIG. 4 is an enlarged partial view of a back-mounted waterstop according to an embodiment of the invention;
FIG. 5 is a front view structural schematic diagram of a circumferential drain pipe according to an embodiment of the present invention;
fig. 6 is a schematic structural plan view of the circumferential drain pipe according to the embodiment of the present invention.
In the figure:
1. the system comprises a water pressure-flow rate monitoring system, 1-1 parts of a pressure sensor, 1-2 parts of a flow rate sensor, 1-3 parts of a display, 1-4 parts of a switch valve, 1-5 parts of a fire fighting pipe joint, 1-6 parts of a monitoring chamber, 1-8 parts of a wiring reserved pipe;
2. 2-1 parts of a back-attached water stop, 2-2 parts of a side flow guide pipe, 2-3 parts of a side flow guide hole, 2-4 parts of a central flow guide pipe, 2-5 parts of a central flow guide hole and flow guide ribs;
3. 3-1 parts of annular drainage pipe, 3-2 parts of main pipe spring, 3-3 parts of drainage pipe and 3-3 parts of drainage pipe spring;
4. 4-1 parts of a longitudinal water drainage pipe, 4-2 parts of an inspection well, 4-3 parts of a pulley fixing shaft, 4-4 parts of a rotor, 4-5 parts of a dragging rope, 4-6 parts of a rope connecting ring and a wire rewinding device;
5. a transverse drain pipe;
6. a four-way connector 6-1 and a four-way connector fixing ring;
7. a three-way connector 7-1 and a three-way connector fixing ring;
8. the method comprises the following steps of maintenance roads, 9, cable trenches, 10, cable trench brackets, 11, communication pipelines, 12, tunnel secondary lining, 13, tunnel primary support, 14, tunnel pavement, 15 and roadside ditches.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. 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 invention 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 invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
One aspect of the present invention provides a dynamic monitoring and dredging drainage system for water pressure and flow velocity behind a tunnel lining, comprising: a circumferential flow guide drainage system, a longitudinal drainage system and a water pressure-flow rate monitoring system, wherein,
the annular flow guide drainage system is arranged between the primary tunnel supporting structure and the secondary tunnel lining and comprises a plurality of annular drainage pipes which are distributed in the length direction of the tunnel, and each annular drainage pipe is arranged along the annular direction of the tunnel; the annular drainage pipe comprises a drainage main pipe and a plurality of drainage pipes, the drainage pipes are distributed in the length direction of the drainage main pipe in a branching manner, a main pipe spring is arranged in the drainage main pipe, and a drainage pipe spring is arranged in the drainage pipe; the spring is strengthened the hose, can avoid tunnel to strut with hose extrusion deformation, guarantees smooth drainage.
The longitudinal drainage system is arranged along the longitudinal direction of the tunnel, is arranged between the primary tunnel supporting structure and the secondary tunnel lining, and comprises a longitudinal drainage pipe and a dredging structure, the dredging structure comprises a plurality of movers arranged in the longitudinal drainage pipe and a sewage discharge structure arranged on the longitudinal drainage pipe, and the movers move to convey sewage in the longitudinal drainage pipe to the sewage discharge structure to be discharged; the annular drain pipe and the back-attached water stop are connected with the longitudinal drain pipe;
the water pressure-flow rate monitoring systems are distributed at different positions of the longitudinal drain pipe and comprise connecting pipelines and monitoring chambers, one ends of the connecting pipelines are connected with the longitudinal drain pipe, the other ends of the connecting pipelines extend upwards to the monitoring chambers, displays arranged in the monitoring chambers are respectively connected with flow rate sensors and pressure sensors arranged in the connecting pipelines, and the monitoring chambers are provided with observation ports;
the rotor is arranged corresponding to the water pressure-flow rate monitoring system.
In some embodiments, a plurality of through holes are formed in the sidewall of the upper side of the draft tube, and the through holes are distributed along the length direction of the draft tube. The through holes can drain accumulated water in the coverage range of the drainage tube into the drainage main pipe more thoroughly.
Furthermore, a plurality of drainage tubes are distributed on two sides of the main drainage tube, and the drainage tubes on the two sides are distributed in a staggered mode.
Further, the draft tube is disposed obliquely upward with respect to the main drain pipe.
Furthermore, the included angle between the drainage tube and the main drainage pipe is 30-60 degrees. The water flowing into the drainage tube is convenient to be drained into the main drainage pipe.
In some embodiments, a plurality of inspection wells are arranged in the longitudinal direction of the longitudinal drainage pipe, a rotor is arranged in the longitudinal drainage pipe section between two adjacent inspection wells, a traction structure is arranged in each inspection well, and the traction structures in the two inspection wells are respectively connected with two opposite ends of the rotor through ropes.
When dredging a certain section of longitudinal drainage pipe, the traction structures in two adjacent inspection wells simultaneously perform opposite actions, so that the stator moves towards one direction, the dirt in the longitudinal drainage pipe is pushed into the inspection well, and the dirt is discharged through the inspection well. After the sewage blockage is completely drained, the actions of the traction structures in the two adjacent inspection wells are reversed, then the stators are pulled reversely, and sewage is drained repeatedly or the rotor is pulled to the original position.
Furthermore, a transverse drain pipe is further arranged inside the tunnel pavement and transversely arranged, one end of the transverse drain pipe is connected with the longitudinal drain pipe, and the other end of the transverse drain pipe extends out of the tunnel.
Because the rotor is arranged in the longitudinal water drainage pipe, certain blocking effect on water flow in the longitudinal water drainage pipe can be achieved, and excessive water flow can be timely discharged by arranging the transverse water drainage pipe.
In some embodiments, the tunnel water-stopping device further comprises a plurality of back-attached water-stopping belts which are all arranged at the crack of the tunnel, each back-attached water-stopping belt comprises a body and a diversion layer, the diversion layer is attached to the body, side diversion pipes are arranged on two sides of the body, and a plurality of side diversion holes are arranged on the side diversion pipes; a central guide pipe is arranged in the guide layer, and a plurality of central guide holes are formed in the central guide pipe;
the side honeycomb duct and the central honeycomb duct are both connected with the longitudinal water discharge pipe.
If the position of back of the body formula waterstop stagnant water oozes the infiltration, the water that oozes can get into in the water conservancy diversion pipe through the water conservancy diversion hole to flow into vertical drain pipe through the honeycomb duct, be convenient for effectively collect this part infiltration, prevent in the infiltration inflow tunnel.
Furthermore, a flow guide rib is connected between the central flow guide pipe and the side flow guide pipe, and the flow guide rib is obliquely and downwards arranged. The diversion ribs can lead surrounding rock water into the central diversion pipe of the back-attached water stop and enter the central diversion pipe through the central diversion hole.
In some embodiments, the hydraulic-flow rate monitoring system includes a fire hose coupling disposed at an end of the connecting line within the monitoring chamber. When the worker knows that the drainage system is in full-load operation according to the detected flow velocity and pressure signals, a fire fighting pipeline can be connected to the fire fighting pipe joint, and accumulated water on the back of the lining is smoothly discharged.
The second aspect of the invention provides a dynamic monitoring and dredging drainage method for water pressure and flow velocity behind a tunnel lining, which comprises the following steps:
the seepage water at the back of the lining enters the main drainage pipe under the drainage action of a plurality of drainage pipes of the annular drainage pipe, enters the longitudinal drainage pipe through the main drainage pipe and is discharged out of the tunnel through the longitudinal drainage pipe;
when the interior of the longitudinal drainage pipe is blocked, the flow velocity sensor and the pressure sensor transmit abnormal signals, then acting force is applied to the rotor in the dredging structure, so that the rotor can move in the longitudinal drainage pipe in a directional mode, dirt in the longitudinal drainage pipe is pushed to the dirt discharging structure, and the longitudinal drainage pipe is dredged.
In some embodiments, the method further comprises the step of directing the slit seepage water to the longitudinal drain pipe using a back-attached water stop.
Furthermore, the gap seepage water in the tunnel enters the side flow guide pipe through the side flow guide holes, and the water which does not flow into the side flow guide pipe flows to the central flow guide pipe under the flow guide effect of the flow guide ribs and enters the central flow guide pipe through the central flow guide holes.
Examples
As shown in fig. 1 and fig. 2, the dynamic monitoring and drainage system for water pressure and flow velocity at the back of the tunnel lining comprises an annular diversion drainage system, a water pressure-flow velocity monitoring system, a longitudinal drainage system, a transverse drainage system and a drainage system, wherein the annular drainage system, the transverse drainage system and the water pressure-flow velocity monitoring system 1 can be connected with a longitudinal drainage pipe through a four-way 6 or a three-way 7.
As shown in fig. 5 and 6, the circumferential drainage system is composed of a back-attached water stop 2 and circumferential drainage pipes 3, wherein a plurality of circumferential drainage pipes 3, such as 2, 3, 4, 5 or more, are distributed in the length direction of the tunnel, and each circumferential drainage pipe 3 is arranged along the circumferential direction of the tunnel, and the specific number is determined according to the length of the tunnel and the specific construction environment; the circumferential drainage pipe 3 comprises a drainage main pipe and a plurality of drainage pipes 3-2, the number of the drainage pipes can be 5, 10, 15, 20 and the like, the drainage pipes 3-2 are distributed in the length direction of the drainage main pipe in a branching manner, a main pipe spring 3-2 is arranged in the drainage main pipe, and a drainage pipe spring 3-3 is arranged in the drainage pipe 3-2. The drainage tubes are distributed on two sides of the drainage main pipe, the drainage tubes on the two sides are distributed in a staggered manner, the drainage tubes are obliquely arranged upwards relative to the drainage main pipe, and the included angle between the drainage tube and the drainage main pipe is 30 degrees to 60 degrees, such as 30 degrees, 35 degrees, 40 degrees, 45 degrees, 50 degrees, 55 degrees and 60 degrees.
As shown in fig. 3 and 4, the number of the back-attached water stops is multiple, such as 2, 3, 4, 5 or more, the specific number is determined according to the length of the tunnel and the specific construction environment, and the back-attached water stops are all arranged at the crack of the tunnel, each back-attached water stop comprises a body and a diversion layer, the diversion layer is attached to the body, the two sides of the body are both provided with side diversion pipes 2-1, and the side diversion pipes 2-1 are provided with a plurality of side diversion holes 2-2; a central guide pipe 2-3 is arranged in the guide layer, and a plurality of central guide holes 2-4 are arranged on the central guide pipe 3-2; the lateral honeycomb duct 2-1 and the central honeycomb duct 2-3 are both connected with the longitudinal water discharge pipe 4. A guide rib 2-5 is connected between the central guide pipe 2-3 and the side guide pipe 2-1, and the guide rib 2-5 is arranged obliquely downwards.
The water pressure-flow rate monitoring system 1 comprises a plurality of, such as 2, 3, 4, 5 or more than two, which are distributed at different positions of a longitudinal drain pipe and comprise a connecting pipeline and monitoring chambers 1-6, wherein one end of the connecting pipeline is connected with the longitudinal drain pipe 4, the other end of the connecting pipeline extends upwards to the monitoring chambers 1-6, displays 1-4 arranged in the monitoring chambers 1-6 are respectively connected with flow rate sensors 1-2 and pressure sensors 1-1 arranged in the connecting pipeline, and observation ports are arranged in the monitoring chambers 1-6; one end of the connecting pipeline, which is positioned in the monitoring chamber, is provided with a fire-fighting pipe joint 1-5. When extreme weather such as unexpected rainstorm, if the drain pipe velocity of flow is normal, can look over the interior water pressure distribution situation of drainage system often through water pressure monitored control system this moment, with fire control union coupling to fire control union coupling 1-5 in, increase drainage channel, discharge into outside tunnel roadside ditch or the tunnel cave with water through the bright tube to this reduces lining cutting back water pressure, avoids the lining cutting structural damage that the lining drilling brought.
Pre-buried pipelines and monitoring caverns 1-6 are arranged in a tunnel secondary lining 12, the pre-buried pipelines are connected with a longitudinal drain pipe 4 through a tee joint 7, a pressure sensor 1-1 is arranged in the pre-buried pipelines, the pre-buried pipelines are connected to a communication cable in a cable trench 9 through a circuit and are transmitted to a tunnel monitoring room, and the lining water pressure behind the tunnel is monitored at the moment; the flow velocity sensor 1-2 is placed at the bottom end of the embedded pipe, is connected to a tunnel monitoring room through a circuit, and can monitor the water flow velocity of the longitudinal drain pipe of the tunnel at any time.
The pressure and water flow monitoring system is numbered, the corresponding tunnel position is positioned, the maintenance and the positioning during the operation and the maintenance of the tunnel are convenient, and the real-time data can be observed through the pressure flow rate display 1-3 during the regular inspection of the tunnel; when the longitudinal drain pipe 4 or the transverse drain pipe 5 is blocked under normal conditions, water flow behind the lining is not smooth, water pressure behind the lining is increased, and the position where the blockage occurs can be checked through the water pressure and flow rate monitoring system at the moment.
The longitudinal drainage system comprises a longitudinal drainage pipe 4, an inspection well 4-1, a pulley fixing shaft 4-2, a rotor 4-3, a dragging rope 4-4, rope connecting rings 4-5, a wire rewinding device 4-6 and the like, wherein the rope connecting rings 4-5 are arranged at two opposite ends of the rotor 4-3, the wire rewinding device 4-6 is arranged on the pulley fixing shaft 4-2, the whole traction device is arranged in the inspection well 4-1, and the dragging rope 4-4 is wound on the wire rewinding device 4-6.
The length direction of the longitudinal drainage pipe is provided with a plurality of inspection wells, a rotor is arranged in the longitudinal drainage pipe section between every two adjacent inspection wells, a traction structure is arranged in each inspection well, and the traction structures in the two inspection wells are connected with the two opposite ends of the rotor through ropes respectively.
When the blocking position is determined, the drainage pipe can be dredged through the rotor 4-3, so that the smoothness of the drainage pipe is ensured; when dredging a certain section of longitudinal drainage pipe, the traction structures in two adjacent inspection wells simultaneously perform opposite actions, so that the stator moves towards one direction, the dirt in the longitudinal drainage pipe is pushed into the inspection well, and the dirt is discharged through the inspection well. After the sewage blockage is completely drained, the actions of the traction structures in the two adjacent inspection wells are reversed, then the stators are pulled reversely, and sewage is drained repeatedly or the rotor is pulled to the original position.
The back-attached water stops are all arranged at the crack of the tunnel, each back-attached water stop comprises a body and a flow guide layer, the flow guide layer is attached to the body, side flow guide pipes are arranged on two sides of the body, and a plurality of side flow guide holes are formed in the side flow guide pipes; a central guide pipe is arranged in the guide layer, and a plurality of central guide holes are formed in the central guide pipe;
the side honeycomb duct and the central honeycomb duct are both connected with the longitudinal water discharge pipe. And a flow guide rib is connected between the central flow guide pipe and the side flow guide pipe, and the flow guide rib is obliquely and downwards arranged.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a water pressure behind tunnel lining, velocity of flow dynamic monitoring and dredge drainage system which characterized in that: the method comprises the following steps: a circumferential flow guide drainage system, a longitudinal drainage system and a water pressure-flow rate monitoring system, wherein,
the annular flow guide drainage system is arranged between the primary tunnel supporting structure and the secondary tunnel lining and comprises a plurality of annular drainage pipes which are distributed in the length direction of the tunnel, and each annular drainage pipe is arranged along the annular direction of the tunnel; the annular drainage pipe comprises a drainage main pipe and a plurality of drainage pipes, the drainage pipes are distributed in the length direction of the drainage main pipe in a branching manner, a main pipe spring is arranged in the drainage main pipe, and a drainage pipe spring is arranged in the drainage pipe;
the longitudinal drainage system is arranged along the longitudinal direction of the tunnel, is arranged between the primary tunnel supporting structure and the secondary tunnel lining, and comprises a longitudinal drainage pipe and a dredging structure, the dredging structure comprises a plurality of movers arranged in the longitudinal drainage pipe and a sewage discharge structure arranged on the longitudinal drainage pipe, and the movers move to convey sewage in the longitudinal drainage pipe to the sewage discharge structure to be discharged; the annular drain pipe and the back-attached water stop are connected with the longitudinal drain pipe;
the water pressure-flow rate monitoring systems are distributed at different positions of the longitudinal drain pipe and comprise connecting pipelines and monitoring chambers, one ends of the connecting pipelines are connected with the longitudinal drain pipe, the other ends of the connecting pipelines extend upwards to the monitoring chambers, displays arranged in the monitoring chambers are respectively connected with flow rate sensors and pressure sensors arranged in the connecting pipelines, and the monitoring chambers are provided with observation ports;
the rotor is arranged corresponding to the water pressure-flow rate monitoring system.
2. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: the lateral wall of the upper side of the drainage tube is provided with a plurality of through holes, and the through holes are distributed along the length direction of the drainage tube.
3. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: the drainage tubes are distributed on two sides of the main drainage tube, and the drainage tubes on the two sides are distributed in a staggered mode.
4. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: the draft tube is arranged obliquely upward relative to the main drainage pipe.
5. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: the included angle between the drainage tube and the main drainage pipe is 30-60 degrees.
6. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: the length direction of the longitudinal drainage pipe is provided with a plurality of inspection wells, a rotor is arranged in the longitudinal drainage pipe section between every two adjacent inspection wells, a traction structure is arranged in each inspection well, and the traction structures in the two inspection wells are connected with the two opposite ends of the rotor through ropes respectively.
7. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: the tunnel is characterized by further comprising a transverse drain pipe, wherein the transverse drain pipe is arranged inside the tunnel pavement and transversely arranged, one end of the transverse drain pipe is connected with the longitudinal drain pipe, and the other end of the transverse drain pipe extends out of the tunnel.
8. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: the tunnel water-stopping device is characterized by also comprising a plurality of back-attached water-stopping belts which are all arranged at the crack of the tunnel, wherein each back-attached water-stopping belt comprises a body and a flow guide layer, the flow guide layer is attached to the body, side flow guide pipes are arranged on two sides of the body, and a plurality of side flow guide holes are formed in the side flow guide pipes; a central guide pipe is arranged in the guide layer, and a plurality of central guide holes are formed in the central guide pipe;
the side honeycomb duct and the central honeycomb duct are both connected with the longitudinal water discharge pipe.
9. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: and a flow guide rib is connected between the central flow guide pipe and the side flow guide pipe, and the flow guide rib is obliquely and downwards arranged.
10. The tunnel lining back water pressure, flow rate dynamic monitoring and evacuation system of claim 1, wherein: in the water pressure-flow velocity monitoring system, one end of the connecting pipeline, which is positioned in the monitoring cavity, is provided with a fire-fighting pipe joint.
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| CN202010112058.0A CN111119995B (en) | 2020-02-24 | 2020-02-24 | Dynamic monitoring and dredging drainage system and method for water pressure and flow velocity at back of tunnel lining |
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| CN202010112058.0A CN111119995B (en) | 2020-02-24 | 2020-02-24 | Dynamic monitoring and dredging drainage system and method for water pressure and flow velocity at back of tunnel lining |
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