CN209586442U - Disposal structure for water burst of underground river next to tunnel - Google Patents
Disposal structure for water burst of underground river next to tunnel Download PDFInfo
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- CN209586442U CN209586442U CN201920215880.2U CN201920215880U CN209586442U CN 209586442 U CN209586442 U CN 209586442U CN 201920215880 U CN201920215880 U CN 201920215880U CN 209586442 U CN209586442 U CN 209586442U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 241001669679 Eleotris Species 0.000 claims abstract description 26
- 238000002955 isolation Methods 0.000 claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims description 22
- 239000004567 concrete Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 239000011435 rock Substances 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 8
- 239000004570 mortar (masonry) Substances 0.000 claims description 6
- 239000011083 cement mortar Substances 0.000 claims description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 230000001771 impaired effect Effects 0.000 abstract description 2
- 108091006146 Channels Proteins 0.000 description 42
- 238000010276 construction Methods 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000008093 supporting effect Effects 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000005323 carbonate salts Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
A disposal structure next to the tunnel underground river water burst comprises a water drainage branch tunnel positioned below a tunnel; the drainage branch tunnel is communicated with the underground river through a channel, a drain pipe and an isolation strip are connected with the underground river side on one side of the tunnel and the tunnel, the isolation strip comprises a sleeper beam and a water-proof wall connected above the sleeper beam, and reinforcing beams are arranged at the upper connecting point and the lower connecting point of the cross section of the intersection of the channel and the drainage branch tunnel. The utility model discloses a setting of passageway can introduce sluicing branch tunnel with the plenty of gushing water of underground river, the final discharge mountain body, the setting of stiffening beam, the fastening nature of tie point has been guaranteed, the setting of the median between underground river and tunnel, the structural integrity of impaired underground river cliff one side has both been guaranteed, can effectually prevent again that the underground river from gushing water and erode with water pressure the water erosion in tunnel, and the setting of drain pipe, can be when underground river water pressure and water level are too big, carry out the drainage operation, further reduce the influence of underground river to tunnel structure.
Description
Technical field
The utility model belongs to constructing tunnel field, in particular to a kind of disposition structure close to tunnel underground river water burst.
Background technique
China has a vast territory, and complicated geology is changeable, and with the construction and development of China railways and highway, some routes can be through
Massif is crossed, this needs tunneling just to guarantee the unobstructed of route, but due to that can have Karst Fissures, the water burst of preservation in massif
Constructing tunnel or tunnel can be damaged to operate the safety used, it is especially more when assigning aquaporin, and there are in the case where underground river, tunnel
The erosion that not only will receive water burst also suffers from destruction caused by water burst hydraulic pressure, and when encountering the rainy day, underground river is dropped by atmosphere in massif
The supply of water, water level increase, and head pressure increases, and underground river is even more greatly to aggravate to the harmfulness in tunnel, previous to be arranged by tunnel
Ditch draining, or drained by drain cavern and collector pipe, it is difficult in a short time to drain the water burst on underground river, and due to underground river
Water yield it is larger, common drainage measure is difficult to effectively reduce or be discharged the water in underground river, and when underground river is close to tunnel
Not only to consider effectively to drain, also need the hydraulic pressure for preventing underground river to the impact in tunnel, it is therefore desirable to which providing one kind can effectively be discharged
Close to tunnel underground river water burst and the disposition structure that prevents hydraulic pressure from washing away.
Utility model content
The utility model proposes a kind of disposition structures close to tunnel underground river water burst, exist for solving tunnel close to underground river
When, the problems such as discharge of underground river water burst and underground river water burst hydraulic pressure are to the harm in tunnel, specific technical solution is as follows:
A kind of disposition structure close to tunnel underground river water burst, wherein tunnel is closed on underground river, is located at below tunnel, comprising being located at
Sluicing branch hole below tunnel；It is connected between sluicing branch hole and underground river by channel.
Tunnel side underground river side and tunnel are connected with drainpipe, and described drainpipe one end is connected to tunnel bottom draining
Ditch, one end pass through rock mass and are connected to underground river.
It is connected with isolation strip close to tunnel side underground river side, the isolation strip includes the water proof connected above sleeper beam and sleeper beam
Wall, the sleeper beam and core wall are arranged along underground river palisades broken edges line；Filled with backfill material, institute between the isolation strip and tunnel
Stating backfill material is mortar flag stone, graded broken stone or concrete, and the mortar flag stone includes cement mortar and slabstone.
Drainpipe is connected between the underground river and tunnel, described drainpipe one end is connected with tunnel bottom gutter, one end
Sequentially pass through backfill material, core wall is connected with underground river.
The cross section upper connection point and low connection point of the channel and sluicing branch hole intersection are provided with reinforcing beam,
The length of the reinforcing beam to the length perpendicular to channel to.
The channel is arch gate-shaped, and top is semicircle shape, and lower part is two to be parallel to each other for connecting two endpoints of semicircle
A vertical edge；Anchor pole is provided between on the channel cross-section circumferential direction.
Long upwards to be sloped downwardly close to sluicing branch hole one, the channel interior bottom side is provided with channel in the channel
Rhone, the branch rhone drop-over of the rhone and sluicing branch hole bottom.
Lining cutting beam is provided in the lining cutting in the channel, the lining cutting beam shape is consistent with channel cross-section shape, described
Lining cutting beam is to be detachably connected with vertical edge joint in semicircle endpoint.
The lining cutting beam is connected with buttcover plate in end at semicircle endpoint, at the endpoint that two vertical edges are connect with semicircle endpoint
It is connected with buttcover plate.
Sluicing branch hole is not connected to one end with channel and the main hole of sluicing connect, the main hole that sluices be located at tunnel lower section and
Across tunnel, rock mass, open at one end setting are goed deep into the main hole one end that sluices.
The utility model has the following beneficial effects:
A large amount of water bursts on underground river can be introduced into sluicing branch hole by the utility model by the setting in channel by channel, then
The main hole that sluices is introduced by sluicing branch hole, massif is finally discharged, wherein being provided with reinforcement in the crosspoint in channel and sluicing branch hole
Beam ensure that the tightness of tie point, by the channel drainage slot and branch rhone drop-over in channel, ensure that the smoothness of water flow
Property；Supporting and reinforcing when ground settlement and tunnel also ensure the structural stability in channel, and the knot when massif is constructed and is drained
Structure safety；The setting of isolation strip and backfill material between underground river and tunnel, both ensure that the structure of impaired underground river palisades side was complete
Whole property, and can effectively prevent underground river water burst from washing away to the water erosion and hydraulic pressure in tunnel, it is ensured that tunnel structure is without damage,
The drainpipe on underground river and tunnel drainage ditch is wherein connected, draining can be carried out, into one in underground river hydraulic pressure and excessive water level
Step reduces influence of the underground river to tunnel structure.The utility model can be applied simultaneously in construction usage in branch hole and two aspect of tunnel
Thus work is saved working hour, and by various structures measures such as channel, drainpipe and isolation strip, administer to underground river, maximum journey
The safety and stabilization that ensure that tunnel structure of degree.
Detailed description of the invention
Fig. 1 is close to tunnel underground river water burst position plan view；
Fig. 2 is the disposition structure connection diagram close to tunnel underground river water burst；
Fig. 3 is structure connection diagram at underground river；
Fig. 4 is sluicing branch hole and channel interconnection schematic diagram；
Fig. 5 is channel lining section figure；
Fig. 6 is channel lining cutting general assembly drawing；
Fig. 7 is connector full-page proof side view；
Fig. 8 is connector full-page proof front view.
Appended drawing reference: the tunnel 1-；The main hole of 2- sluicing；3- sluicing branch hole；The underground river 4-；The channel 5-；The gutter 6-；7- draining
Pipe；8- backfill material；The isolation strip 9-；91- sleeper beam；92- core wall；10- anchor pole；11- branch rhone；12- reinforcing beam；The channel 13-
Rhone；14- connector；141- buttcover plate；142- lining cutting beam.
Specific embodiment
By taking Yunnan Province's highway projects as an example, which is typical karst landform, and Highway house wears
Cross 1 surrounding massif Karst Fissures of tunnel development, the 1 position stratum of tunnel be soluble carbonate salt rock, lithology be limestone and
Dolomite occurs a large amount of solution cavities and large-scale fissure zone in construction period hole.
1 longitudinal slope of tunnel is unidirectional slope, and the outlet of tunnel 1 is counter-slope excavation construction, and 500m is completed in the construction of 1 export structure of tunnel
Afterwards, wherein there is 1 section of the tunnel 200m inverted arch to swell, after lead to longitudinal cracking, subsequent inverted arch construction joint, 1 transverse drainage of tunnel
A large amount of water bursts in ditch 6, water yield maximum reach 25000m3/h, and wherein inverted arch protuberance maximum position water yield is maximum, and hydraulic pressure is maximum,
Because water yield is very big, 1 blow section inverted arch of tunnel protuberance crack location is treated in journey and is found, most serious position tunnel is swelled
There are underground underground river 4 on the right side of 1 garage direction of road, this 4 horizontal direction of underground river is communicated with inverted arch, 4 top position of vertical direction underground river
The 50cm below inverted arch fill surface, bottom position and inverted arch bottom maintain an equal level, 4 Vertical tunnel of underground river, 1 axis direction depth 4m, underground river
4 trends are substantially parallel with 1 axis direction of tunnel, it has been found that underground river 4 length about 40m.
To ensure that water burst and hydraulic pressure do not impact tunnel 1 in underground river 4, safety and hidden danger of quality is discharged, such as Fig. 1 and figure
Shown in 2, a kind of disposition structure close to tunnel underground river water burst is provided, the sluicing branch hole 3 comprising being located at 1 lower section of tunnel is described to let out
It is connected between water branch hole 3 and underground river 4 by channel 5, sluicing branch hole 3 is not connected to one end with channel 5 and the main hole 2 that sluices connects
It connects, the main hole 2 that sluices is located at 1 lower section of tunnel and across tunnel 1, and rock mass, open at one end setting are goed deep into main 2 one end of hole that sluices；
The channel 5 is sloped downwardly in sluicing branch hole 3, and angle with horizontal plane angle is 37 °, length 18m, 5 size of channel
For wide 2m × long 1.5m arch door shape；The 5 inside bottom side of channel is provided with channel drainage slot 13, the channel drainage slot 13 with
11 drop-over of branch rhone of 3 bottom of sluicing branch hole.
As shown in figure 3,1 side underground river of tunnel, 4 side and tunnel 1 are connected with drainpipe 7, described 7 one end of drainpipe connects
It is connected to 1 bottom discharge ditch 6 of tunnel, one end passes through rock mass and is connected to underground river 4, wherein for connecting close to 1 side underground river of tunnel, 4 side
There is isolation strip 9, the isolation strip 9 includes the core wall 92 connected above sleeper beam 91 and sleeper beam 91, the sleeper beam 91 and core wall
92 arrange along 4 palisades broken edges line of underground river；91 making material of sleeper beam is armored concrete, the length of sleeper beam 91 and underground
For the length of breakage palisades with length, sleeper beam 91 width 1m, high 0.5m inside set 22 lengthways main steel bar of upper layer and lower layer φ, spacing at underground river 4
15cm, and lateral 12 stirrup of φ, spacing 25cm are set, sleeper beam 91 is located at 1 two lining wall outer lower side underground underground river of tunnel, 4 bottom.
In the present embodiment, setting concrete core wall is pushed up on the top of sleeper beam 91 to underground river 4, and 92 height of core wall is pushed up according to sleeper beam 91
Remaining complementary space setting is pushed up to underground river 4, length and sleeper beam 91 are consistent, are plain concrete with a thickness of 30cm, concrete grade is
C30, on the top of core wall 92, the position 10cm, every 5m reserve 4 φ 200mmPVC drainpipes 7, center spacing 50cm down, and length is
To the distance between the gutter 6 in tunnel 1, this reserved drainpipe 7 sets as underground river 4 from the deposit that channel 5 drains core wall 92
It applies, main function is as the part of channel 5 on underground river 4 is blocked or water level or when larger water, and draining when can not drain in time is set
It applies；After the completion of sleeper beam 91, core wall 92 and drainpipe 7 are constructed, according to 4 sections of underground river inverted arch under design drawing construction ground and face upward again
Arch filling；Filled with backfill material 8 between the isolation strip 9 and tunnel 1, the backfill material 8 is mortar flag stone, the mortar flag stone packet
Aqueous cement mortar and slabstone.
As shown in figure 4, the cross section upper connection point and low connection point in the channel 5 and 3 intersection of sluicing branch hole are equal
It is provided with reinforcing beam 12, the reinforcing beam 12 is steel I-beam and the upper and lower part for being disposed side by side on crosspoint, the reinforcement
The length of beam 12 to the length perpendicular to channel 5 to；The channel 5 is arch gate-shaped, and top is semicircle shape, and lower part is connection semicircle two
Two to be parallel to each other the vertical edge of a endpoint；
In the present embodiment, 5 supporting construction of channel includes preliminary bracing and liner supporting, and preliminary bracing includes anchor pole
10, steel mesh, steel arch-shelf and gunite concrete, as shown in figure 5, anchor pole 10 is arranged at intervals on the circumferential direction of 5 cross section of channel；Anchor pole
10 be 22 grouting rock bolt of φ, long 1.5m, steel mesh be φ 8, spacing 20cm × 20cm, arch be I14 I-steel, spacing 0.8m,
Preliminary bracing thickness 20cm；As shown in fig. 6, lining cutting is plain concrete lining cutting, lining thickness 25cm, concrete grade C30, lining
Lining cutting beam 142 is provided in block, the lining cutting beam 142 is list Pin steel I-beam, and 142 shape of lining cutting beam and channel 5 are transversal
Face shape is consistent.
As shown in Figure 7 and Figure 8, the lining cutting beam 142 is bolted at semicircle endpoint with vertical edge connector 14；The lining
It builds the end at semicircle endpoint of beam 142 and is welded with buttcover plate 141, buttcover plate 141 is square plate, in two vertical edges and semicircle endpoint
Buttcover plate 141 is welded at the endpoint of connection.
In conjunction with Fig. 1 and Fig. 8, a kind of construction party of disposition structure close to tunnel underground river water burst is further illustrated
Method, the specific steps are as follows:
4 position of underground river is set Step 1: surveying, and corresponding 4 position of underground river digs gutter 6 in 1 bottom surface of tunnel, then according to draining
4 position of ditch 6 and underground river, it is long to the main hole 2 of sluicing excavated across tunnel 1 in Vertical tunnel 1, and in main 2 two sides of hole that sluice, parallel
In tunnel 1, sluicing branch hole 3 is excavated in long measurement upwards；
Step 2: excavating channel 5 from sluicing branch hole 3 to 4 direction of underground river in 4 dry season of underground river, in channel 5, length is adopted upwards
With the method for facing upward digging, facing upward degree of proaching talent is 37 °, using stage excavation from top to bottom on cross section, wherein in 3 He of sluicing branch hole
The position upper connection point and low connection point that channel 5 intersects install I-steel reinforcing beam；
Step 3: one section of the excavation in channel 5, the one section of supporting of every excavation and reinforcing, supporting and reinforcing process include anchor pole 10
Construction, hang steel mesh, set up arch, gunite concrete, lining shuttering installation, lining concrete pour and the maintenance of lining cutting and
Form removable, wherein pre-buried lining cutting beam 142 in lining cutting, wherein lining cutting beam 142 is welded to connect steel plate at semicircle and vertical edge node；
Step 4: cleaning out base needed for sleeper beam 91 on 4 avris of underground river in palisades breakage close to 1 side of tunnel on underground river 4
Bottom position after supporting module carries out the reinforcing bar binding of sleeper beam 91, carries out sleeper beam 91 according to 91 design size surveying setting-out of sleeper beam
Concreting, after conserving and reaching prescribed strength, form removal；
Step 5: in the position of 91 upper surface surveying setting-out core wall 92 of sleeper beam, and supporting module casting concrete, pacifying
7 position of reserved drainpipe when decking and casting concrete；
Step 6: the filling backfill material 8 in sleeper beam 91, the core wall 92 respectively gap between tunnel 1, to 1 inverted arch of tunnel
Corresponding 4 sections of underground river is constructed again, and equal 7 installation site of reserved drainpipe in filling backfill material 8 and construction inverted arch, wherein for
The 4 non-breakage in palisades side of underground river directly sets downwards drainage hole by the gutter 6 in tunnel 1 and installs drainpipe 7, thus complete
At the construction of disposition structure.
Obviously, above-described embodiment is only intended to clearly illustrate made by the outstanding feature of the utility model and illustrates, and is not
It is the restriction to the utility model embodiment；For those skilled in the art, basis is used above explained
On can still make other variations or changes in different ways, if not carrying out inventive improvements to it, belong to the utility model
Protection scope.
Claims (10)
1. a kind of disposition structure close to tunnel underground river water burst, wherein tunnel (1) is closed on underground river, is located at below tunnel (1), special
Sign is: comprising being located at the sluicing branch hole (3) below tunnel (1)；Pass through channel between sluicing branch hole (3) and underground river (4)
(5) it is connected to.
2. a kind of disposition structure close to tunnel underground river water burst according to claim 1, it is characterised in that: the tunnel
(1) side underground river (4) side and tunnel (1) are connected with drainpipe (7), and described drainpipe (7) one end is connected to tunnel (1) bottom row
Ditch (6), one end pass through rock mass and are connected to underground river (4).
3. a kind of disposition structure close to tunnel underground river water burst according to claim 1, it is characterised in that: close to tunnel
(1) side underground river (4) side is connected with isolation strip (9), and the isolation strip (9) includes to connect above sleeper beam (91) and sleeper beam (91)
Core wall (92), the sleeper beam (91) and core wall (92) are arranged along underground river (4) palisades broken edges line；
Filled with backfill material (8) between the isolation strip (9) and tunnel (1), the backfill material (8) is mortar flag stone, graded broken stone
Or concrete, the mortar flag stone include cement mortar and slabstone.
4. a kind of disposition structure close to tunnel underground river water burst according to claim 3, it is characterised in that: the underground river
(4) it being connected between tunnel (1) drainpipe (7), described drainpipe (7) one end is connected with tunnel (1) bottom discharge ditch (6), and one
End sequentially passes through backfill material (8), core wall (92) is connected with underground river (4).
5. a kind of disposition structure close to tunnel underground river water burst according to claim 1, it is characterised in that: the channel
(5) it is provided with reinforcing beam (12) with the cross section upper connection point of sluicing branch hole (3) intersection and low connection point, it is described to add
The length of brutal (12) to the length perpendicular to channel (5) to.
6. a kind of disposition structure close to tunnel underground river water burst according to claim 5, it is characterised in that: the channel
It (5) is arch gate-shaped, top is semicircle shape, and lower part is two to be parallel to each other the vertical edge for connecting two endpoints of semicircle；It is described logical
Anchor pole (10) are provided between on the circumferential direction of road (5) cross section.
7. a kind of disposition structure close to tunnel underground river water burst according to claim 6, it is characterised in that: the channel
(5) long upwards to be sloped downwardly close to sluicing branch hole (3) one, the internal bottom side of the channel (5) is provided with channel drainage slot
(13), branch rhone (11) drop-over of the rhone (13) and sluicing branch hole (3) bottom.
8. a kind of disposition structure close to tunnel underground river water burst, feature according to any one of claim 5 to 7 exist
In: it is provided with lining cutting beam (142) in the lining cutting of the channel (5), lining cutting beam (142) shape and channel (5) cross section shape
Shape is consistent, and the lining cutting beam (142) is detachably connected at semicircle endpoint with vertical edge connector (14).
9. a kind of disposition structure close to tunnel underground river water burst according to claim 8, it is characterised in that: the lining cutting beam
(142) end is connected with buttcover plate (141) at semicircle endpoint, is connected at the endpoint that two vertical edges are connect with semicircle endpoint pair
Fishplate bar (141).
10. a kind of disposition structure close to tunnel underground river water burst according to claim 1, it is characterised in that: the sluicing
Branch hole (3) connect with channel (5) connection one end and the main hole (2) of sluicing, the main hole (2) of sluicing be located at tunnel (1) lower section and
Across tunnel (1), rock mass, open at one end setting are goed deep into main hole (2) one end that sluices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920215880.2U CN209586442U (en) | 2019-02-20 | 2019-02-20 | Disposal structure for water burst of underground river next to tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920215880.2U CN209586442U (en) | 2019-02-20 | 2019-02-20 | Disposal structure for water burst of underground river next to tunnel |
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| Publication Number | Publication Date |
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| CN209586442U true CN209586442U (en) | 2019-11-05 |
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| CN201920215880.2U Active CN209586442U (en) | 2019-02-20 | 2019-02-20 | Disposal structure for water burst of underground river next to tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943310A (en) * | 2021-02-07 | 2021-06-11 | 中交一公局集团有限公司 | Construction method for cross spanning section of upper-layer tunnel and lower-layer tunnel |
-
2019
- 2019-02-20 CN CN201920215880.2U patent/CN209586442U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943310A (en) * | 2021-02-07 | 2021-06-11 | 中交一公局集团有限公司 | Construction method for cross spanning section of upper-layer tunnel and lower-layer tunnel |
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