CN111119999A - Mine method underwater tunnel inflatable type water retaining wall - Google Patents
Mine method underwater tunnel inflatable type water retaining wall Download PDFInfo
- Publication number
- CN111119999A CN111119999A CN202010050034.7A CN202010050034A CN111119999A CN 111119999 A CN111119999 A CN 111119999A CN 202010050034 A CN202010050034 A CN 202010050034A CN 111119999 A CN111119999 A CN 111119999A
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- air bag
- tunnel
- inflatable
- retaining wall
- steel plate
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000005065 mining Methods 0.000 claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 23
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 23
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000009412 basement excavation Methods 0.000 description 7
- 239000011435 rock Substances 0.000 description 7
- 229920003266 Leaf® Polymers 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- E21F17/103—Dams, e.g. for ventilation
- E21F17/107—Dams, e.g. for ventilation inflatable
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses an inflatable water retaining wall for an underwater tunnel by a mining method, which comprises: a reinforced concrete base; the bottom of the inflatable air bag is fixed on the reinforced concrete base, and two sides of the inflatable air bag are fixed on the side walls of the tunnel supporting structure; the cover-shaped steel plate is arranged outside the air bag and located on the reinforced concrete base, the top surface of the cover-shaped steel plate is flush with the construction road, and the cover-shaped steel plate is driven to move upwards or fall down through expansion and compression of the air bag. The inflatable water retaining wall for the underwater tunnel by the mining method is suitable for the inflatable water retaining wall in the construction process of the underwater tunnel by the mining method, and the inflatable water retaining wall can be quickly put into use when water burst occurs in the tunnel, blocks incoming water and provides buffer time for emergency rescue; the tunnel can be stored in a non-working state, and the internal space of the tunnel is not occupied; the tunnel is convenient to dismantle after being communicated.
Description
Technical Field
The invention relates to the technical field of construction safety devices in tunnels, in particular to an inflatable water retaining wall for an underwater tunnel by a mining method.
Background
The tunnel penetrating through the river and the sea is often an important node in a modern urban traffic system, and the most commonly adopted construction method of the current underwater tunnel mainly comprises the following steps: the mining method tunnel is widely applied to the field environment with deep water depth and complex geological conditions, and representative projects include mansion gate hang-an submarine tunnel, Qingdao jiao bay submarine tunnel and the like.
Different from a shield tunnel, the excavation surface of a mine-method underwater tunnel is open, when the mine-method underwater tunnel passes through a water-rich weak stratum or a rock stratum with crack development, a water gushing accident is easy to happen to the excavation surface, the construction progress is influenced slightly, and the safety of personnel and equipment in the tunnel is threatened seriously. When meeting the stratum condition, the method generally adopts grouting to reinforce and block water, and is assisted with a mechanical pumping and discharging method for pretreatment. However, due to uncertainty of underground engineering environment and different grouting reinforcement effects due to different time and place, the paraglider submarine tunnel and the jiao zhou bay submarine tunnel have excavation surface water gushing conditions with different degrees in the excavation process after grouting, so that at least one construction temporary water retaining device is generally arranged behind the excavation surface of the mine underwater tunnel to deal with the conditions.
The current conventional temporary water retaining device for construction is in the form that: at excavation face rear, one concrete wall is pour to the complete section of country rock to be connected with peripheral country rock through radial anchor rope (pipe), reserve the door opening on the wall and install singly open or two division steel construction door leafs, this door only can open towards excavation face direction one-way, and the door leaf is installed compressible sealing rubber strip with the door frame periphery. When the tunnel is normally constructed, the door leaf is in an open state; when the water inrush accident happens to the working face, the door leaf is closed to stop the incoming water. Such a water deflector has several limitations:
1) the door purlin invades the tunnel clearance to form the bottleneck of the transport vehicle;
2) in order to meet the sealing requirement, the concrete door purlin can only be driven by setting a threshold and obliquely building a steel plate bridge and the like, and if the door leaf is closed, heavy obstacles such as the steel plate bridge and the like need to be removed, the emergency efficiency is undoubtedly influenced;
3) the device is required to be arranged in a section with complete surrounding rock and high strength, and the position is not freely selected;
4) the later-period dismantling of the temporary construction is difficult;
5) the concrete door purlin pouring and steel structure door leaf welding manufacturing process is complex, and the manufacturing cost is high.
Disclosure of Invention
The invention aims to provide an inflatable water retaining wall for an underwater tunnel with a mining method, which is suitable for the underwater tunnel with the mining method and can be quickly put into use when water inrush occurs in the tunnel.
In order to achieve the purpose, the invention discloses a concrete technical scheme of an inflatable water retaining wall of an underwater tunnel by a mining method, which comprises the following steps:
the utility model provides a mine method underwater tunnel inflatable breakwater, includes: a reinforced concrete base; the bottom of the inflatable air bag is fixed on the reinforced concrete base, and two sides of the inflatable air bag are fixed on the side walls of the tunnel supporting structure; the cover-shaped steel plate is arranged outside the air bag and located on the reinforced concrete base, the top surface of the cover-shaped steel plate is flush with the construction road, and the cover-shaped steel plate is driven to move upwards or fall down through expansion and compression of the air bag.
Furthermore, the cover-shaped steel plate is rectangular, and a bearing support is arranged at the position vertical to the axis of the tunnel.
Furthermore, one side of the cover-shaped steel plate, which is close to the water-facing side, is fixed on the reinforced concrete base through the hinged support, one side of the cover-shaped steel plate, which is close to the back water side, is movably connected with the reinforced concrete base through the movable support, and the cover-shaped steel plate freely rotates around the hinged support.
Furthermore, the air bag is connected with an inflator pump through an inflation tube, an inflation nozzle for inflating is arranged on the air bag, and the inflator pump is connected with the inflation nozzle on the air bag through the inflation tube so as to inflate the air bag.
Furthermore, a pressure gauge for displaying and controlling the air supply amount is arranged on the air charging pipe.
Furthermore, a tangible hole is reserved on the cover-shaped steel plate close to the inflating nozzle so as to facilitate inflation.
Further, the air bag comprises a stressed framework, and the stressed framework is made of high-strength synthetic fiber fabric.
Furthermore, the inner surface and the outer surface of the air bag are both provided with rubber layers, and the expansion of the air bag is realized through the elasticity of the rubber layers.
Further, the reinforced concrete base is provided with one-way slope near the side of the backwater, and is formed with the water catch bowl that is the V type through between one-way slope and the tunnel bottom plate, is provided with immersible pump and pre-buried drain pipe in the water catch bowl.
The inflatable water retaining wall for the underwater tunnel by the mining method has the advantages that:
1) the inflatable water retaining wall is suitable for an underwater tunnel construction process by a mining method, and can be quickly put into use when water burst occurs in the tunnel, so that incoming water is blocked, and buffering time is provided for emergency; the tunnel can be stored in a non-working state, and the internal space of the tunnel is not occupied; the tunnel is convenient to dismantle after being communicated;
2) when no water burst accident occurs, the air bag can be accommodated below the cover-shaped steel plate, so that the air bag does not occupy the clearance of the tunnel, and construction and travelling are facilitated;
3) when a water burst accident occurs, the air bag is inflated only through the inflator pump, and the cover-shaped steel plate is pushed by the inflated air bag to form the water retaining wall, so that the operation is convenient and rapid;
4) the device is not limited by surrounding rock conditions, and the position of the water retaining wall is more freely arranged;
5) after the tunnel is communicated, only the air bag needs to be removed, and the bottom plate is poured, so that the removal is convenient and rapid;
6) the construction method has simple process and relatively lower cost.
Drawings
FIG. 1 is a top view of the inflatable retention wall of the present invention;
FIG. 2 is a side view of the inflatable retention wall of the present invention in a stowed position;
FIG. 3 is a side view of the inflatable retention wall of the present invention in an operational configuration;
FIG. 4 is an axial view of the tunnel with the inflatable retention wall of the present invention in the stowed position;
FIG. 5 is an axial view of the tunnel with the inflatable retention wall of the present invention in the operational state.
In the figure: 1. a reinforced concrete base; 2. an air bag; 3. a cap-shaped steel plate; 4. pre-burying a drain pipe; 5. a sump; 6. an inflator pump; 7. a pressure gauge; 8. an air charging nozzle; 9. a side wall of the tunnel supporting structure; 10. a wedge block; 11. a water collection tank; 12. a working surface of an underwater tunnel by a mining method; 13. and the hinged support is hinged.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, the inflatable water-retaining wall for an underwater tunnel by a mining method of the present invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the inflatable water retaining wall for the underwater tunnel by the mining method comprises a reinforced concrete base 1, an air bag 2 and a cover-shaped steel plate 3. The air bag 2 is in an operating state as shown in figures 3 and 5, and the air bag 2 is inflated to block the lower section of the tunnel; in the stored state of the airbag 2 shown in fig. 2 and 4, the airbag 2 is stored below the cover-shaped steel plate 3 after being deflated.
Further, the cover-shaped steel plate 3 is arranged outside the air bag 2, the cover-shaped steel plate 3 is rectangular, a force bearing support is arranged at the position perpendicular to the axis 2 of the tunnel, and the cover-shaped steel plate 3 is driven to move upwards or fall down through expansion and compression of the air bag 2. The air bag 2 is in an air-out accommodating state during normal construction of the mine-method underwater tunnel, and is covered with the cover-shaped steel plate 3, and the top surface of the cover-shaped steel plate 3 is flush with a construction road, so that construction vehicles can pass through the air bag.
Furthermore, one side of the cover-shaped steel plate 3 close to the water-facing side is fixed on the reinforced concrete base 1 through a plurality of hinged supports 13, one side close to the back water side is movably connected with the reinforced concrete base 1 through a movable support, and the cover-shaped steel plate 3 can freely rotate around the hinged support 13 on the water-facing side.
Further, the bottom of the air bag 2 is anchored on the reinforced concrete base 1 through a wedge block 10, two sides of the air bag are fixed on the side wall 9 of the tunnel supporting structure through cold bonding, the anchoring and bonding modes can be replaced by bolt pressing plates and the like, and all anchoring surfaces and binding surfaces are subjected to waterproof treatment through waterproof sealant.
Further, the air bag 2 is connected with an inflator pump 6 through an inflation tube, an inflation nozzle 8 for inflating is arranged on the air bag 2, and the inflator pump 6 is connected with the inflation nozzle 8 on the air bag 2 through the inflation tube so as to inflate the air bag 2. In addition, a pressure gauge 7 for displaying and controlling the air supply amount is arranged on the air charging pipe.
In addition, as shown in fig. 1, a shaped hole is reserved on the cover-shaped steel plate 3 near the inflating nozzle 8 to facilitate inflation.
Further, the airbag 2 includes a stressed frame, which is a high-strength synthetic fiber fabric. In addition, the inner surface and the outer surface of the airbag 2 are provided with rubber layers (preferably ethylene propylene diene monomer rubber layers) whose elasticity is utilized to achieve expansion of the airbag 2.
Further, the cross section of the reinforced concrete base 1 is in the shape of two supporting legs, the supporting legs are embedded into surrounding rock below the tunnel bottom plate, the top surface of the reinforced concrete base 1 is lower than the height of the tunnel pavement, a one-way slope is arranged on the backwater side of the reinforced concrete base 1, and a V-shaped water collecting tank 11 is formed between the one-way slope and the tunnel bottom plate. A submersible pump and a pre-buried drain pipe 4 are arranged in the water collecting tank 11. After the emergency rescue is finished, the air bag 2 is slowly deflated, accumulated water flows into the V-shaped water collecting tank 11 through the water retaining wall, is collected into the water collecting pit 5 through the pre-buried drain pipe 4, and is pumped to a position close to a waste water pump room through the submersible pump. At the same time, the cap-shaped steel plate 3 rotates along the hinge support 13, falls closed and returns to the original position.
The working process of the inflatable water retaining wall of the underwater tunnel by the mining method is described in the following with reference to the attached drawings:
as shown in fig. 2, the underwater tunnel is deflated during normal construction in the mine method, the air bag 2 is housed below the cover-shaped steel plate 3, and the top surface of the cover-shaped steel plate 3 is flush with the construction road, so that the construction vehicle can travel.
As shown in figure 3, when a water burst accident occurs on the working surface 12 of the underwater tunnel by the mining method, an inflator pump 6 is connected with an inflating nozzle 8 on an air bag 2 through an inflating pipe so as to inflate the air bag 2, and the air supply amount is controlled through a pressure gauge 7 on the inflating pipe. The cover-shaped steel plate 3 is jacked up after the air bag 2 is expanded, the cover-shaped steel plate 3 is obliquely lapped on the air bag 2, and the cover-shaped steel plate and the air bag form a water retaining wall together.
After the emergency rescue is finished, the rubber air bag 2 is slowly deflated, accumulated water flows into the V-shaped water collecting tank 11 through the water retaining wall, is collected into the water collecting pit 5 through the pre-buried drain pipe 4, and is pumped to a position close to a waste water pump room through the submersible pump. At the same time, the cap-shaped steel plate 3 rotates along the hinge support 13, falls closed and returns to the original position.
The inflatable water retaining wall for the underwater tunnel by the mining method is suitable for the inflatable water retaining wall in the construction process of the underwater tunnel by the mining method, and the inflatable water retaining wall can be quickly put into use when water burst occurs in the tunnel, blocks incoming water and provides buffering time for emergency rescue; the tunnel can be stored in a non-working state, and the internal space of the tunnel is not occupied; the tunnel is convenient to dismantle after being communicated; when no water burst accident occurs, the air bag can be accommodated below the cover-shaped steel plate, so that the air bag does not occupy the clearance of the tunnel, and construction and travelling are facilitated; when a water burst accident occurs, the air bag is inflated only through the inflator pump, and the cover-shaped steel plate is pushed by the inflated air bag to form the water retaining wall, so that the operation is convenient and rapid; the device is not limited by surrounding rock conditions, and the position of the water retaining wall is more freely arranged; after the tunnel is communicated, only the air bag needs to be removed, and the bottom plate is poured, so that the removal is convenient and rapid; the construction method has simple process and relatively lower cost.
The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.
Claims (9)
1. The utility model provides a mine method underwater tunnel inflatable breakwater which characterized in that includes:
a reinforced concrete base (1);
the bottom of the inflatable air bag (2) is fixed on the reinforced concrete base (1), and the two sides of the inflatable air bag are fixed on the side wall (9) of the tunnel supporting structure; and
the cover-shaped steel plate (3) is arranged outside the air bag (2) and located on the reinforced concrete base (1), and the top surface of the cover-shaped steel plate (3) is flush with the construction road and is expanded and compressed through the air bag (2) to drive the cover-shaped steel plate (3) to move upwards or fall down.
2. The mine method underwater tunnel inflatable water retaining wall as claimed in claim 1, wherein the cover-shaped steel plate (3) is rectangular, and a bearing support is arranged at a position vertical to the tunnel axis (2).
3. The mining underwater tunnel inflatable water retaining wall as claimed in claim 1 or 2, wherein one side of the cover-shaped steel plate (3) close to the water-facing side is fixed on the reinforced concrete base (1) through a hinged support (13), one side close to the water-backing side is movably connected with the reinforced concrete base (1) through a movable support, and the cover-shaped steel plate (3) freely rotates around the hinged support (13).
4. The mining underwater tunnel inflatable water retaining wall as claimed in claim 1, wherein the air bag (2) is connected with an inflator pump (6) through an inflation tube, an inflation nozzle (8) for inflation is arranged on the air bag (2), and the inflator pump (6) is connected with the inflation nozzle (8) on the air bag (2) through the inflation tube so as to inflate the air bag (2).
5. The mining underwater tunnel inflatable water retaining wall as claimed in claim 4, wherein the inflation tube is provided with a pressure gauge (7) for displaying and controlling the air supply amount.
6. The mining underwater tunnel inflatable water retaining wall as claimed in claim 4, wherein a shaped hole is reserved on the cover-shaped steel plate (3) near the inflating nozzle (8) for inflation.
7. The mining underwater tunnel inflatable water retaining wall as claimed in claim 1, wherein the air bag (2) comprises a stressed framework, and the stressed framework is made of high-strength synthetic fiber fabric.
8. The mining underwater tunnel inflatable water retaining wall as claimed in claim 1, wherein the inner surface and the outer surface of the air bag (2) are both provided with rubber layers, and the expansion of the air bag (2) is realized through the elasticity of the rubber layers.
9. The mining method underwater tunnel inflatable type water retaining wall as claimed in claim 1, wherein a one-way slope is arranged at a position, close to a backwater side, of the reinforced concrete base (1), a V-shaped water collecting tank (11) is formed between the one-way slope and a tunnel bottom plate, and a submersible pump and an embedded drain pipe (4) are arranged in the water collecting tank (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050034.7A CN111119999A (en) | 2020-01-17 | 2020-01-17 | Mine method underwater tunnel inflatable type water retaining wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050034.7A CN111119999A (en) | 2020-01-17 | 2020-01-17 | Mine method underwater tunnel inflatable type water retaining wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111119999A true CN111119999A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010050034.7A Pending CN111119999A (en) | 2020-01-17 | 2020-01-17 | Mine method underwater tunnel inflatable type water retaining wall |
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| Country | Link |
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| CN (1) | CN111119999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215597A (en) * | 2021-12-14 | 2022-03-22 | 郑州工程技术学院 | Urban rainstorm tunnel disaster intelligent early warning system capable of building water retaining wall |
-
2020
- 2020-01-17 CN CN202010050034.7A patent/CN111119999A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215597A (en) * | 2021-12-14 | 2022-03-22 | 郑州工程技术学院 | Urban rainstorm tunnel disaster intelligent early warning system capable of building water retaining wall |
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