CN112855261A - Drainage device, system and method suitable for TBM tunnel induced polarization instrument - Google Patents
Drainage device, system and method suitable for TBM tunnel induced polarization instrument Download PDFInfo
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- CN112855261A CN112855261A CN202011620062.4A CN202011620062A CN112855261A CN 112855261 A CN112855261 A CN 112855261A CN 202011620062 A CN202011620062 A CN 202011620062A CN 112855261 A CN112855261 A CN 112855261A
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- 230000010287 polarization Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract 3
- 230000009471 action Effects 0.000 claims description 2
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 13
- 238000005553 drilling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000405070 Percophidae Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000005641 tunneling 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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
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- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
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- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geochemistry & Mineralogy (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a drainage device, a system and a method suitable for a TBM tunnel induced polarization instrument, and the technical scheme is as follows: the water-saving drainage device comprises a drainage pipeline, wherein one end of the drainage pipeline is connected with a drill bit, the drill bit is provided with a water outlet for water to flow in from a water source area, and the other end of the drainage pipeline is used for discharging the water. The tunnel induced polarization detector can be used for detecting the scale and the spatial position of a water source in the TBM excavation process and then discharging the water source through a drainage pipeline with a drill bit and a water outlet, so that the possible water burst disaster can be solved in advance.
Description
Technical Field
The invention relates to the technical field of tunnels, in particular to a drainage device, a drainage system and a drainage method suitable for a TBM tunnel induced polarization instrument.
Background
The construction of the TBM (full-face tunnel boring machine) has the advantages of small boring pollution, good boring effect, high boring efficiency, safer boring and the like, and more tunnels constructed by the TBM are adopted at present. The tunnel construction under the condition of the water-rich stratum often encounters adverse geological disasters such as water inrush and the like, the condition of machine damage and even casualties can occur, serious economic loss is brought, and the tunnel construction method becomes a key factor for restricting the tunnel safety construction. The induced polarization method can be used for detecting the scale and the spatial position of a sudden water burst disaster source in advance by means of sensitive reaction to a water body, and plays an important role in tunnel engineering.
Generally, a drainage system of tunnel engineering is composed of a longitudinal drainage blind ditch, a transverse drainage blind ditch, a circumferential drainage blind ditch and a drainage blind ditch, water can flow through a drainage pipeline in the drainage process, crystals such as calcareous rocks and carbonates are blocked after long-term use, the water pressure outside a tunnel is increased, the resistance of a supporting structure is influenced, and the drainage pipeline arranged inside a lining is inconvenient to maintain. Therefore, it is particularly important to make advance drainage in time when tunnel engineering is carried out, the induced polarization method can be used for ascertaining the scale and the spatial position of a sudden water inrush disaster source in advance, and the principle of 'mainly drainage and blockage removal combination' is generally adopted in current tunnel drainage, so that a reliable and effective advance drainage method for tunnel engineering is needed at present.
In summary, the existing drainage system still mainly arranges a drainage channel in the tunnel, but does not have a device which can combine with the TBM to drain water in advance and effectively.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a drainage device, a system and a method suitable for a tunnel induced polarization instrument of a TBM (tunnel boring machine), which can be used for solving the possible water inrush disaster in advance by utilizing a tunnel induced polarization detector to find out the scale and the spatial position of a water source and then draining the water source through a drainage pipeline with a drill bit and a water outlet in the TBM excavation process.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a drainage device suitable for a TBM tunnel induced polarization instrument, including a drainage pipeline, where one end of the drainage pipeline is connected to a drill bit, the drill bit is provided with a water outlet for water to flow into from a water source region, and the other end of the drainage pipeline is used for draining water.
As a further implementation mode, a cavity is formed in the drill bit, and a plurality of water outlets communicated with the cavity are formed in the circumferential direction of the drill bit.
As a further implementation, the edge of the water outlet is polished smooth.
In a second aspect, the embodiment of the invention also provides a drainage system suitable for the TBM tunnel induced polarization instrument, which comprises the drainage device.
As a further implementation mode, the drainage pipeline penetrates through the cutter head to be connected with the power device, and the drainage pipelines are evenly distributed along the circumferential direction of the cutter head.
As a further implementation mode, two water drainage pipelines are arranged.
As a further implementation mode, when the drainage system works, the drainage pipeline is disconnected from the power device and is connected with the hose.
As a further implementation mode, the cutter head is rigidly connected with the main bearing, and a plurality of induced polarization electrodes and blades are distributed on the surface of the cutter head.
In a third aspect, an embodiment of the present invention further provides a drainage method suitable for a TBM tunnel induced polarization apparatus, where the drainage system includes:
the drill bit drills on the tunnel face under the action of the power device, and the power device is stopped after the drill bit enters the water source area; and connecting the drainage pipeline with a hose, wherein the water body enters the drainage pipeline through the water outlet and is introduced into the drainage ditch or the blind ditch through the hose.
As a further implementation mode, the residual water quantity of the water source can be monitored in real time through the induced polarization electrode in the water drainage process.
The beneficial effects of the above-mentioned embodiment of the present invention are as follows:
(1) in one or more embodiments of the invention, in the TBM excavation process, after the tunnel induced polarization detector is used for detecting the scale and the spatial position of a water source, the drill bit is connected with the drainage pipeline, so that the water body in the water source region enters the drainage pipeline through the water outlet, the drainage pipeline leads the water body into the drainage ditch or blind ditch, and finally the water body is discharged out of the tunnel, and the possible water inrush disaster is solved in advance.
(2) The drainage pipeline arrangement of one or more embodiments of the invention does not affect the normal construction of the TBM, when the TBM is constructed, the drainage system does not work, and when the TBM stops the construction, the drainage system starts to work; after the water body is discharged, the power device provides power to bring back the drainage pipeline, and the continuous construction of the TBM cutter head on the tunnel face is not influenced.
(3) The drill bit of one or more embodiments of the invention can adopt different drill bits and types according to different working conditions, and has wide application range.
(4) The edge of the water outlet of one or more embodiments of the invention is polished smooth, so that blockage caused by long-time drainage can be prevented.
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 block diagram of the present invention according to one or more embodiments;
FIG. 2 is a schematic diagram of a cutter head configuration according to one or more embodiments of the present invention;
FIG. 3 is a front view of a drill bit according to one or more embodiments of the present invention;
FIG. 4 is a side view of a drill bit according to one or more embodiments of the present invention;
the device comprises a water discharge pipeline 1, a water discharge pipeline 2, a main bearing 3, a cutter head 4, a blade 5, a water outlet 6, a drill bit 7, a water source region 8, an induced polarization electrode 9 and a power device.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. 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 application 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 example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "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;
for convenience of description, the words "up", "down", "left" and "right" in this application, if any, merely indicate that the directions of movement are consistent with those of the figures themselves, and are not limiting in structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting in this application.
The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected directly or indirectly through an intermediate medium, or the two components can be connected internally or in an interaction relationship, and the terms can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows:
the embodiment provides a drainage device suitable for a TBM tunnel induced polarization instrument, which comprises a drainage pipeline 1 and a drill bit 6, wherein the drill bit 6 is installed at one end of the drainage pipeline 1, and the other end of the drainage pipeline 1 is connected with a power device 9 or a hose.
Further, as shown in fig. 3 and 4, a cavity is formed inside the drill 6, the drill 6 is provided with a water outlet 5 communicated with the cavity, and the water body in the water source region enters the drill 6 from the water outlet 5 and enters the drainage pipeline 1 through the drill 6.
The water outlets 5 are distributed along the circumference of the drill bit 6, and the number of the water outlets 5 can be two, three or other numbers. In order to prevent blockage caused by long-time drainage, the edge of the water outlet 5 is polished smooth.
Further, the drill bit 6 may be of different types and types according to different conditions, such as a horseshoe bit, a beveled pseudo-blade bit, a duckbill bit, a cross bit, or an X bit. In this embodiment, the drainage pipeline 1 and the drill 6 are made of high-strength metal materials.
During TBM construction, after a tunnel induced polarization detector finds out a water source, forward construction is stopped, power is provided by a power device 9, and a hole is drilled on the tunnel face in a directional drilling mode.
The drill bit continues to drill forwards under the drive of the power device 9, after entering the water source area, the water body enters the drainage pipeline 1 through the water outlet 5, is introduced into the drainage ditch or the blind ditch through the drainage pipeline 1 and is finally discharged out of the tunnel.
Example two:
the embodiment provides a drainage system suitable for a TBM tunnel induced polarization instrument, as shown in FIG. 1, the drainage system comprises the drainage device of the first embodiment, and further comprises a cutter head 3, a main bearing 2 and a power device 9, wherein the main bearing 2 is a key component of the TBM, and a large gear ring of the main bearing 2 is rigidly connected with the cutter head 3.
The plurality of drainage pipelines 1 vertically penetrate through the cutter head 3 and are evenly distributed along the circumferential direction of the cutter head 3. In order to not influence the rotation of the main bearing 2 and the propulsion of the TBM tunneling machine and ensure the normal work of the drainage pipeline 1, the position of the drainage pipeline 1 in the cutter head 3 is determined according to the practical situation of the size of the cutter head 3, and the distance between the center of the general drainage pipeline 1 and the center of the cutter head 3 is 2/5-3/5 of the radius of the cutter head 3.
In order to ensure that the drainage pipeline 1 does not affect the normal construction of the TBM, the embodiment adopts two drainage pipelines 1 which are distributed in a central symmetry way around the cutter head 3. When the TBM stops construction, the drainage system starts to work.
Further, when the TBM is constructed, the drainage pipeline 1 is connected with a power device 9, and the power device 9 is an existing device capable of providing drilling power, which is the prior art and is not described herein again. When the TBM stops construction, the drainage pipeline 1 is connected with a hose.
As shown in fig. 2, a plurality of induced polarization electrodes 8 and blades 4 are distributed on the surface of the cutter head 3, and the arrangement modes of the induced polarization electrodes 8 and the blades 4 are the same as those of the existing tunnel induced polarization instrument, and are not described again here. The residual water amount of the water source can be monitored in real time through the induced polarization detector in the drainage process so as to adjust the engineering scheme at any time.
Example three:
the embodiment provides a drainage method suitable for a TBM tunnel induced polarization instrument, and the drainage system according to the second embodiment includes:
when the TBM is tunneled forwards, the drainage pipeline 1 and the drill bit 6 are both within the circumferential range of the cutter head 3, the induced polarization electrode 8 on the cutter head 3 stops continuing to construct forwards after detecting the front water source region 7, and the drainage system drills a hole on the tunnel face by the drill bit 6 in a directional drilling mode; the drainage device 9 provides power to make the drill 6 drive the drainage pipeline 1 to be constructed forwards.
The drill bit 6 is driven by the power device 9 to continue to drill forwards, and after entering the water source area, the connection between the power device 9 and the drainage pipeline 1 is removed, and the drainage pipeline 1 is connected with the hose. The water body enters the drainage pipeline 1 through the water outlet 5, is introduced into the drainage ditch or the blind ditch through the drainage pipeline 1 and is finally led out of the tunnel.
The residual water amount of the water source can be monitored in real time through the induced polarization electrode 8 in the drainage process so as to adjust the engineering scheme at any time.
After the water body is discharged, the power device 9 provides power to bring the drainage pipeline 1 back, and the continuous construction of the TBM cutter head on the tunnel face is not influenced.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The drainage device is characterized by comprising a drainage pipeline, wherein one end of the drainage pipeline is connected with a drill bit, the drill bit is provided with a water outlet through which water flows from a water source region, and the other end of the drainage pipeline is used for discharging the water.
2. The drainage device suitable for the TBM tunnel induced polarization instrument as claimed in claim 1, wherein the drill bit is internally provided with a cavity, and a plurality of water outlets communicated with the cavity are formed in the circumferential direction of the drill bit.
3. The drainage device suitable for the TBM tunnel induced polarization instrument as claimed in claim 1 or 2, wherein the edge of the water outlet is polished smooth.
4. A drainage system suitable for TBM tunnel induced polarimeters, comprising a drainage device according to any one of claims 1 to 3.
5. The drainage system suitable for the TBM tunnel induced polarization instrument as claimed in claim 4, wherein the drainage pipeline passes through the cutter head and is connected with the power device, and a plurality of drainage pipelines are uniformly distributed along the circumferential direction of the cutter head.
6. The drainage system suitable for the TBM tunnel induced polarization instrument as claimed in claim 5, wherein two drainage pipelines are provided.
7. The drainage system suitable for the TBM tunnel induced polarization instrument as claimed in claim 5, wherein when the drainage system is in operation, the drainage pipeline is disconnected from the power device and connected with the hose.
8. The drainage system suitable for the TBM tunnel induced polarization instrument as claimed in claim 5, wherein the cutterhead is rigidly connected with the main bearing, and a plurality of induced polarization electrodes and blades are distributed on the surface of the cutterhead.
9. A drainage method suitable for a TBM tunnel induced polarimeter, wherein the drainage system according to any one of claims 4 to 8 is adopted, comprising:
the drill bit drills on the tunnel face under the action of the power device, and the power device is stopped after the drill bit enters the water source area; and connecting the drainage pipeline with a hose, wherein the water body enters the drainage pipeline through the water outlet and is introduced into the drainage ditch or the blind ditch through the hose.
10. The draining method for the TBM tunnel induced polarization instrument as claimed in claim 9, wherein the residual water amount of the water source can be monitored in real time by the induced polarization electrode during the draining process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011620062.4A CN112855261A (en) | 2020-12-30 | 2020-12-30 | Drainage device, system and method suitable for TBM tunnel induced polarization instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011620062.4A CN112855261A (en) | 2020-12-30 | 2020-12-30 | Drainage device, system and method suitable for TBM tunnel induced polarization instrument |
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| CN112855261A true CN112855261A (en) | 2021-05-28 |
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