CN109736884B - Treatment structure for water gushing in underground river close to tunnel and construction method of treatment structure - Google Patents
Treatment structure for water gushing in underground river close to tunnel and construction method of treatment structure Download PDFInfo
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- CN109736884B CN109736884B CN201910126258.9A CN201910126258A CN109736884B CN 109736884 B CN109736884 B CN 109736884B CN 201910126258 A CN201910126258 A CN 201910126258A CN 109736884 B CN109736884 B CN 109736884B
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- 238000010276 construction Methods 0.000 title claims abstract description 25
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 20
- 239000011435 rock Substances 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 5
- 239000004567 concrete Substances 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 238000009412 basement excavation Methods 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 239000011378 shotcrete Substances 0.000 claims description 4
- 239000011083 cement mortar Substances 0.000 claims description 3
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- 239000000758 substrate Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 239000011440 grout Substances 0.000 claims 2
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 238000011010 flushing procedure Methods 0.000 abstract 1
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000006028 limestone Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Lining And Supports For Tunnels (AREA)
Abstract
A kind of disposal structure of surging water of the river of the close-proximity tunnel and its construction method, the disposal structure includes the drainage branch hole located under the tunnel; the drainage branch hole is communicated with the hidden river through a channel, a drain pipe and a separation belt are connected between the hidden river edge on one side of the tunnel and the tunnel, the separation belt comprises a sleeper beam and a water separation 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 hole. According to the invention, a large amount of water burst of the hidden river can be introduced into the drainage branch hole through the arrangement of the channel, the mountain is finally discharged, the reinforcing beam is arranged, the fastening performance of the connecting point is ensured, the isolation belt between the hidden river and the tunnel is arranged, the structural integrity of one side of the damaged hidden river rock wall is ensured, the hydraulic erosion and the hydraulic flushing of the hidden river water burst to the tunnel can be effectively prevented, and the drainage pipe is arranged, so that the drainage operation can be performed when the hidden river water pressure and the water level are overlarge, and the influence of the hidden river on the tunnel structure is further reduced.
Description
Technical Field
The invention belongs to the field of tunnel construction, and particularly relates to a disposal structure for water gushing in a buried river close to a tunnel and a construction method thereof.
Background
The tunnel construction method has the advantages that the tunnel is wide in amplitude staff in China, the geology is complex and changeable, along with the construction and development of railways and highways in China, some lines can pass through mountain bodies, the smoothness of the lines is guaranteed by excavating tunnels, however, due to karst cracks in the mountain bodies, the existing water gushes can damage the safety of tunnel construction or tunnel operation, especially when water gushes are more channels and a hidden river exists, the tunnel can be corroded by water gushing water pressure and can be damaged by water gushing water pressure, when rainy days are met, the hidden river in the mountain bodies is supplied with atmospheric precipitation, the water level is increased, the water head pressure is increased, the damage of the hidden river to the tunnel is greatly aggravated, the water gushing water is drained through tunnel drainage ditches in the past, or the hidden river is difficult to drain through drainage holes and water collecting pipes in a short time, and due to the fact that the water gushing amount of the hidden river is large, common drainage measures are difficult to effectively reduce or drain water in the hidden river, when the hidden river is close to the tunnel, the effective drainage is considered, the water gushing of the hidden river is required to be effectively drained, and the water pressure of the tunnel is prevented from being constructed, when the hidden river is close to the tunnel is required to be effectively drained, the water pressure is increased, the water pressure of the hidden river is needed, and the water is effectively is drained, and the water is required to be drained, and the water is well and the water is well and is prevented from being close to the tunnel to be drained.
Disclosure of Invention
The invention provides a disposal structure of surging water of a closed-loop river and a construction method thereof, which are used for solving the problems of discharging surging water of the closed-loop river, harm of the surging water pressure of the closed-loop river to the tunnel and the like when the closed-loop river is in close-loop condition, and the concrete technical scheme is as follows:
a disposal structure for surging water in close proximity to a tunnel, wherein the hidden river is close to the tunnel and is positioned below the tunnel, and comprises a drainage branch hole positioned below the tunnel; the drainage branch hole is communicated with the hidden river through a channel.
The hidden river edge at one side of the tunnel is connected with a drain pipe, one end of the drain pipe is connected with a drain ditch at the bottom of the tunnel, and the other end of the drain pipe penetrates through a rock body and is communicated with the hidden river.
The underground river edge near one side of the tunnel is connected with a separation belt, the separation belt comprises a sleeper beam and a water-proof wall connected above the sleeper beam, and the sleeper beam and the water-proof wall are arranged along the broken edge line of the underground river rock wall; the gap between the isolation belt and the tunnel is filled with backfill, wherein the backfill is mortar rubble, graded broken stone or concrete, and the mortar rubble comprises cement mortar and rubble.
The drainage pipe is connected between the hidden river and the tunnel, one end of the drainage pipe is connected with the drainage ditch at the bottom of the tunnel, and the other end of the drainage pipe sequentially penetrates through the backfill and the waterproof wall to be connected with the hidden river.
The upper connecting point and the lower connecting point of the cross section of the intersection of the channel and the drainage branch hole are respectively provided with a reinforcing beam, and the long direction of the reinforcing beam is perpendicular to the long direction of the channel.
The channel is in an arch door shape, the upper part of the channel is semicircular, and the lower part of the channel is provided with two parallel vertical edges which connect two endpoints of the semicircle; and an anchor rod is arranged between the annular directions of the cross section of the channel.
The passageway is upwards for being close to the drainage branch hole one side downward sloping in the length, the inside bottom side of passageway is provided with passageway water drainage tank, water drainage tank and the branch water drainage tank of drainage branch hole bottom are in the same direction as the connection.
A lining beam is arranged in the lining of the channel, the shape of the lining beam is consistent with the shape of the cross section of the channel, and the lining beam is detachably connected with a vertical joint at a semicircular end point; the lining beam is connected with an abutting plate at the end part of the semicircular end point, and the abutting plate is connected at the end points of the two vertical edges connected with the semicircular end point.
The main drainage hole is positioned below the tunnel and spans across the tunnel, one end of the main drainage hole penetrates into the rock mass, and the other end of the main drainage hole is opened.
The construction method of the disposal structure of the water burst of the underground river close to the tunnel comprises the following specific steps:
firstly, measuring the position of a hidden river, digging a drainage ditch on the bottom surface of a tunnel corresponding to the position of the hidden river, and measuring and digging a main drainage hole and a branch drainage hole according to the positions of the drainage ditch and the hidden river;
step two, excavating a channel from a drainage branch hole to the direction of the river in the period of the river withered water, adopting a upward excavation method on the length of the channel, and adopting layered excavation from top to bottom on the cross section, wherein a reinforcing beam is arranged at the upper connecting point and the lower connecting point of the intersection position of the drainage branch hole and the channel;
step three, excavating a channel, namely excavating a section of support and reinforcing a section of support, wherein the support and reinforcing procedures comprise anchor rod construction, reinforcing steel bar net hanging, arch erection, shotcrete, lining template installation, lining concrete pouring, maintenance and template dismantling of lining, and lining is embedded with lining beams in the lining;
step four, cleaning out the substrate position required by the sleeper beam on the side of the hidden river at the position of the hidden river near the tunnel side and at the broken part of the rock wall, measuring and paying off according to the design size of the sleeper beam, supporting a template to carry out reinforcement binding of the sleeper beam, carrying out concrete pouring of the sleeper beam, and dismantling the template after maintenance reaches the specified strength;
measuring the position of a paying-off water-proof wall on the upper surface of the sleeper beam, supporting a template for casting concrete, and reserving a drain pipe position when installing the template and casting the concrete;
and step six, filling backfill in gaps between the sleeper beam and the waterproof wall and the tunnel respectively, re-constructing the inverted arch of the tunnel corresponding to the hidden river section, and reserving drain pipe installation positions during filling backfill and constructing the inverted arch, wherein a drain hole is directly drilled downwards from a tunnel drain on one side of the hidden river rock wall and a drain pipe is installed, so that the construction of the disposal structure is completed.
The invention has the following beneficial effects:
according to the invention, a large amount of water burst of the underground river can be introduced into the drainage branch hole through the channel, and then introduced into the drainage main hole through the drainage branch hole, and finally discharged out of the mountain, wherein the reinforcing beam is arranged at the intersection of the channel and the drainage branch hole, so that the tightness of the connection point is ensured, the channel drainage channel in the channel is connected with the branch drainage channel in sequence, and the smoothness of water flow is ensured; the support and reinforcement during channel excavation also ensure the structural stability of the channel and the structural safety during mountain construction and drainage; the setting of median and backfill between the hidden river and the tunnel not only has guaranteed the structural integrity of impaired hidden river rock wall one side, but also can effectually prevent that the hidden river from gushing water and water pressure erodes to the hydraulic erosion and the water pressure of tunnel, has guaranteed that the tunnel structure is not damaged, wherein connects the drain pipe of hidden river and tunnel escape canal, can carry out drainage operation when hidden river water pressure and water level are too big, further reduces the influence of hidden river to the tunnel structure. When the invention is used in construction, the construction can be carried out on both the branch hole and the tunnel, thus the working time is saved, and the underground river is treated by various structural measures such as a channel, a drain pipe, an isolation belt and the like, so that the safety and the stability of the tunnel structure are ensured to the greatest extent.
Drawings
FIG. 1 is a plan view of a position of a surging water in close proximity to a tunnel;
FIG. 2 is a schematic view of a connection of a disposal structure proximate to a tunnel underdrain gush;
FIG. 3 is a schematic view of a structure connection at a hidden river;
FIG. 4 is a schematic illustration of cross-connect of drainage tunnels with channels;
FIG. 5 is a sectional view of a tunnel liner;
FIG. 6 is a tunnel lining assembly drawing;
FIG. 7 is a side view of a joint bulk sample;
fig. 8 is a front view of a joint sample.
Reference numerals: 1-tunneling; 2-draining main hole; 3-draining branch holes; 4-a river; 5-channel; 6-drainage ditch; 7-a drain pipe; 8-backfilling; 9-isolating belts; 91-sleeper beams; 92-a water-proof wall; 10-anchor rod; 11-branch drainage grooves; 12-reinforcing beams; 13-a channel drain; 14-linker; 141-an abutment plate; 142-lining the beam.
Detailed Description
Taking a highway project in Yunnan province as an example, the region where the project is located is a typical karst landform, karst cracks of mountain bodies around a tunnel 1 where the highway passes are developed, stratum at the position where the tunnel 1 is located is soluble carbonate rock, lithology is limestone and dolomite, and a large number of karst caves and large-scale crack zones appear in the tunnel during construction.
The longitudinal slope of the tunnel 1 is a unidirectional slope, the outlet of the tunnel 1 is a reverse slope excavation construction, after the construction of the outlet structure of the tunnel 1 is finished for 500m, a 200m section of inverted arch of the tunnel 1 is raised to cause longitudinal cracking, then a large amount of water is gushed in an inverted arch construction joint and a transverse drainage ditch 6 of the tunnel 1, the water inflow is up to 25000 m/h, the water inflow is maximum at the position of the raised maximum of the inverted arch, the water pressure is maximum, the water inflow is extremely high, the raised cracking position of the inverted arch of the water-gushing section of the tunnel 1 is treated, an underground river 4 is found to be arranged at the position of the raised maximum, the tunnel 1 is arranged on the right side in the vehicle direction, the horizontal direction of the underground river 4 is communicated with the inverted arch, the top of the vertical direction underground river 4 is 50cm below the inverted arch filling surface, the bottom position is leveled with the bottom of the inverted arch, the depth 4m in the vertical direction of the tunnel 1 is equal to the axial direction, the trend of the underground river 4 is basically parallel to the axial direction of the tunnel 1, and the length of the underground river 4 is found to be 40m.
In order to ensure that water burst and water pressure in the underground river 4 do not affect the tunnel 1, and discharge safety and hidden quality hazards, as shown in fig. 1 and 2, a disposal structure of water burst in the underground river close to the tunnel is provided, which comprises a water discharge branch hole 3 positioned below the tunnel 1, wherein the water discharge branch hole 3 is communicated with the underground river 4 through a channel 5, one end of the water discharge branch hole 3 is not communicated with the channel 5 and is connected with a water discharge main hole 2, the water discharge main hole 2 is positioned below the tunnel 1 and spans across the tunnel 1, one end of the water discharge main hole 2 penetrates into a rock body, and one end of the water discharge main hole 2 is arranged in an open manner; the channel 5 is inclined downwards at one side of the drainage branch hole 3, the included angle between the channel 5 and the horizontal plane is 37 degrees, the length is 18m, and the size of the channel 5 is an arch door shape with the width of 2m and the length of 1.5 m; the bottom side in the channel 5 is provided with a channel water drainage groove 13, and the channel water drainage groove 13 is connected with a branch water drainage groove 11 at the bottom of the drainage branch hole 3.
As shown in fig. 3, the side of the hidden river 4 at one side of the tunnel 1 is connected with a drain pipe 7 with the tunnel 1, one end of the drain pipe 7 is connected with a drain ditch 6 at the bottom of the tunnel 1, and the other end of the drain pipe passes through a rock body and is communicated with the hidden river 4, wherein for the side of the hidden river 4 near the tunnel 1, a separation belt 9 is connected, the separation belt 9 comprises a sleeper beam 91 and a water-proof wall 92 connected above the sleeper beam 91, and the sleeper beam 91 and the water-proof wall 92 are arranged along the broken edge line of the rock wall of the hidden river 4; the sleeper beam 91 is made of reinforced concrete, the length of the sleeper beam 91 is the same as the length of a broken rock wall at the underground river 4, the sleeper beam 91 is 1m wide and 0.5m high, an upper layer phi 22 and a lower layer phi 22 of longitudinal main reinforcements are arranged in the sleeper beam, the interval is 15cm, transverse phi 12 stirrups are arranged, the interval is 25cm, and the sleeper beam 91 is positioned at the bottom of the underground river 4 outside and below two lining side walls of the tunnel 1.
In this embodiment, a concrete water-proof wall is arranged from the top of the sleeper beam 91 to the top of the hidden river 4, the height of the water-proof wall 92 is set according to the residual space from the top of the sleeper beam 91 to the top of the hidden river 4, the length is consistent with that of the sleeper beam 91, the thickness is 30cm, the concrete is plain concrete, the concrete grade is C30, 4 phi 200mmPVC drain pipes 7 are reserved every 5m at the position of 10cm from the top of the water-proof wall 92, the center distance is 50cm, the length is the distance between the water-proof wall 92 and the drain ditch 6 of the tunnel 1, and the reserved drain pipes 7 are used as reserve facilities for draining water from the hidden river 4, and mainly serve as drain facilities when the channel 5 of the hidden river 4 is blocked locally or the water level is large and the water level cannot be drained timely; after the sleeper beam 91, the waterproof wall 92 and the drain pipe 7 are constructed, constructing an inverted arch and filling the inverted arch of the 4 sections of the underground river again according to the design drawing; and a backfill 8 is filled between the isolation belt 9 and the tunnel 1, wherein the backfill 8 is a mortar rubble, and the mortar rubble comprises cement mortar and rubble.
As shown in fig. 4, the upper connection point and the lower connection point of the cross section of the intersection of the channel 5 and the drainage branch hole 3 are respectively provided with a reinforcing beam 12, the reinforcing beams 12 are i-shaped steel beams and are arranged at the upper part and the lower part of the intersection side by side, and the long direction of the reinforcing beams 12 is perpendicular to the long direction of the channel 5; the channel 5 is in an arch door shape, the upper part of the channel is semicircular, and the lower part of the channel is provided with two parallel vertical edges which connect two endpoints of the semicircle;
in this embodiment, the channel 5 supporting structure includes an initial supporting structure and a lining supporting structure, the initial supporting structure includes anchor rods 10, a reinforcing mesh, a steel arch frame and sprayed concrete, as shown in fig. 5, the anchor rods 10 are arranged at intervals in the circumferential direction of the cross section of the channel 5; the anchor rod 10 is a phi 22 mortar anchor rod, the length is 1.5m, the reinforcing mesh is phi 8, the spacing is 20cm multiplied by 20cm, the arch frame is I14I-steel, the spacing is 0.8m, and the thickness of the primary support is 20cm; as shown in FIG. 6, the lining is a plain concrete lining, the thickness of the lining is 25cm, the concrete grade is C30, a lining beam 142 is arranged in the lining, the lining beam 142 is a single I-beam, and the shape of the lining beam 142 is consistent with the shape of the cross section of the channel 5.
As shown in fig. 7 and 8, the lining beam 142 is bolted to the vertical joint 14 at the ends of the semicircle; the end part of the lining beam 142 at the semicircular end point is welded with an abutting plate 141, the abutting plate 141 is a square steel plate, and the end points of the two vertical edges connected with the semicircular end points are welded with the abutting plate 141.
Referring to fig. 1 and 8, a construction method of a disposal structure of water gushing in a dark river close to a tunnel is further described, and specific steps are as follows:
firstly, measuring the position of a hidden river 4, digging a drainage ditch 6 on the bottom surface of a tunnel 1 corresponding to the position of the hidden river 4, digging a main drainage hole 2 crossing the tunnel 1 in the long direction of a vertical tunnel 1 according to the drainage ditch 6 and the position of the hidden river 4, and measuring the digging of branch drainage holes 3 on two sides of the main drainage hole 2 and parallel to the long direction of the tunnel 1;
step two, in the period of water shortage of the hidden river 4, excavating a channel 5 from the drainage branch hole 3 to the hidden river 4, adopting a upward excavation method for the length of the channel 5, wherein the upward excavation angle is 37 degrees, adopting layered excavation from top to bottom on the cross section, and installing I-steel reinforcing beams at the upper connecting point and the lower connecting point of the crossing position of the drainage branch hole 3 and the channel 5;
step three, excavating a channel 5, namely excavating a section of support and reinforcing a section, wherein the support and reinforcing process comprises anchor rod 10 construction, steel bar net hanging, arch erection, shotcrete spraying, lining template installation, lining concrete pouring, maintenance and template dismantling of lining, wherein lining beams 142 are embedded in the lining, and the lining beams 142 are welded with steel plates at semicircular and vertical edge nodes.
Step four, cleaning the needed substrate position of the sleeper beam 91 on the side of the hidden river 4 at the side of the hidden river 4 close to the tunnel 1 at the damaged part of the rock wall, measuring and paying off according to the design size of the sleeper beam 91, erecting a template to bind the reinforcing steel bars of the sleeper beam 91, pouring concrete of the sleeper beam 91, and dismantling the template after the maintenance reaches the specified strength;
measuring the position of a paying-off waterproof wall 92 on the upper surface of a sleeper beam 91, supporting a template for pouring concrete, and reserving the position of a drain pipe 7 when installing the template and pouring the concrete;
and step six, filling backfill 8 in gaps between the sleeper beams 91 and the waterproof wall 92 and the tunnel 1 respectively, re-constructing the inverted arch of the tunnel 1 corresponding to the section of the hidden river 4, and reserving the installation positions of the drain pipes 7 during filling the backfill 8 and constructing the inverted arch, wherein the unbroken part on one side of the rock wall of the hidden river 4 is directly punched with drain holes downwards from the drain ditch 6 of the tunnel 1 and is provided with the drain pipes 7, thereby completing the construction of the disposal structure.
It is to be understood that the above examples are presented solely for the purpose of clearly illustrating the salient features of the present invention and are not intended to limit the scope of the present invention; other variations and modifications of the present invention will be apparent to those of skill in the art, and it is intended to cover all such modifications and variations of this invention without departing from the scope of the invention as defined by the appended claims.
Claims (2)
1. The utility model provides a handle structure immediately adjacent tunnel river gush water, wherein the river is close to tunnel (1), is located tunnel (1) below, its characterized in that: comprises a drainage branch hole (3) positioned below the tunnel (1); the drainage branch hole (3) is communicated with the hidden river (4) through a channel (5);
the underground river (4) on one side of the tunnel (1) is connected with a drain pipe (7) along with the tunnel (1), one end of the drain pipe (7) is connected with a drain ditch (6) at the bottom of the tunnel (1), and the other end of the drain pipe penetrates through a rock body and is communicated with the underground river (4);
the underground river (4) side close to one side of the tunnel (1) is connected with a separation belt (9), the separation belt (9) comprises a sleeper beam (91) and a waterproof wall (92) connected above the sleeper beam (91), and the sleeper beam (91) and the waterproof wall (92) are arranged along a broken edge line of a rock wall of the underground river (4);
a backfill (8) is filled between the isolation belt (9) and the tunnel (1), wherein the backfill (8) is a grout rubble, graded broken stone or concrete, and the grout rubble comprises cement mortar and rubble;
a drain pipe (7) is connected between the hidden river (4) and the tunnel (1), one end of the drain pipe (7) is connected with a drain ditch (6) at the bottom of the tunnel (1), and the other end of the drain pipe sequentially penetrates through the backfill (8) and the waterproof wall (92) to be connected with the hidden river (4);
the upper connecting point and the lower connecting point of the cross section of the intersection of the channel (5) and the drainage branch hole (3) are respectively provided with a reinforcing beam (12), and the long direction of the reinforcing beam (12) is perpendicular to the long direction of the channel (5);
the channel (5) is in an arch door shape, the upper part of the channel is in a semicircle shape, and the lower part of the channel is provided with two parallel vertical edges connecting two endpoints of the semicircle; an anchor rod (10) is arranged between the annular directions of the cross section of the channel (5);
the channel (5) is inclined downwards at one side close to the water drainage branch hole (3) in the length direction, a channel drainage groove (13) is formed in the bottom side of the inside of the channel (5), and the channel drainage groove (13) is connected with a branch drainage groove (11) at the bottom of the water drainage branch hole (3) in sequence;
a lining beam (142) is arranged in the lining of the channel (5), the shape of the lining beam (142) is consistent with the cross section of the channel (5), and the lining beam (142) is detachably connected with a vertical joint (14) at a semicircular end point; the end part of the lining beam (142) at the semicircular end point is connected with an abutting plate (141), and the end points of the two vertical edges connected with the semicircular end point are connected with abutting plates (141);
the water draining branch hole (3) is not connected with one end communicated with the channel (5) and the water draining main hole (2), the water draining main hole (2) is located below the tunnel (1) and spans the tunnel (1), one end of the water draining main hole (2) penetrates into a rock body, and one end of the water draining main hole is open.
2. The construction method of a disposal structure immediately adjacent to a tunnel river surge according to claim 1, comprising the specific steps of:
firstly, measuring the position of a hidden river (4), digging a drainage ditch (6) on the bottom surface of a tunnel (1) corresponding to the position of the hidden river (4), and measuring and digging a main drainage hole (2) and a branch drainage hole (3) according to the positions of the drainage ditch (6) and the hidden river (4);
step two, excavating a channel (5) from a drainage branch hole (3) to the direction of the river (4) in the dry period of the river (4), adopting a pitching method for excavating the channel (5) in a long upward direction, adopting layered excavation from top to bottom on the cross section, and installing a reinforcing beam (12) at the upper connecting point and the lower connecting point at the crossing position of the drainage branch hole (3) and the channel (5);
step three, excavating a channel (5), wherein each excavating section of support and reinforcing section comprises anchor rod (10) construction, steel bar net hanging, arch erection, shotcrete, lining template installation, lining concrete pouring, and lining maintenance and template removal, wherein lining beams (142) are embedded in the lining;
step four, cleaning the needed substrate position of the sleeper beam (91) on the side of the hidden river (4) at the position of the hidden river (4) close to one side of the tunnel (1) at the damaged part of the rock wall, measuring and paying off according to the design size of the sleeper beam (91), supporting a template to carry out reinforcement binding of the sleeper beam (91), carrying out concrete pouring of the sleeper beam (91), and dismantling the template after curing reaches the specified strength;
measuring the position of a paying-off waterproof wall (92) on the upper surface of a sleeper beam (91), supporting a template to pour concrete, and reserving the position of a drain pipe (7) when the template is installed and the concrete is poured;
step six, filling backfill (8) in gaps between the sleeper beams (91) and the waterproof walls (92) and the tunnel (1) respectively, re-constructing the inverted arch of the tunnel (1) corresponding to the section of the hidden river (4), and reserving the installation positions of the drainage pipes (7) when filling the backfill (8) and constructing the inverted arch, wherein the non-broken part on one side of the rock wall of the hidden river (4) is directly downwards provided with drainage holes from the drainage ditch (6) of the tunnel (1) and is provided with the drainage pipes (7), thereby completing the construction of the disposal structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126258.9A CN109736884B (en) | 2019-02-20 | 2019-02-20 | Treatment structure for water gushing in underground river close to tunnel and construction method of treatment structure |
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| CN201910126258.9A CN109736884B (en) | 2019-02-20 | 2019-02-20 | Treatment structure for water gushing in underground river close to tunnel and construction method of treatment structure |
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| CN109736884A CN109736884A (en) | 2019-05-10 |
| CN109736884B true CN109736884B (en) | 2024-03-15 |
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| CN111271118B (en) * | 2020-03-30 | 2024-06-04 | 中铁二院工程集团有限责任公司 | Drainage structure suitable for reconstruction of karst tunnel bottom structure and construction method thereof |
| CN111963241A (en) * | 2020-08-31 | 2020-11-20 | 蒙方葵 | Tunnel ponding auxiliary drainage traffic device |
| CN113622956B (en) * | 2021-08-31 | 2022-12-06 | 中铁十八局集团有限公司 | Construction method for high-speed railway double-track tunnel to penetrate through vertical mud gushing karst cave |
| CN114215558B (en) * | 2021-11-30 | 2023-10-10 | 西北矿冶研究院 | Plugging method for near-flooding civil mining tunnel of tailing pond |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922303A (en) * | 2010-08-30 | 2010-12-22 | 中铁第四勘察设计院集团有限公司 | Method for treating tunnel passing through underground river karst hall |
| CN204899979U (en) * | 2015-08-19 | 2015-12-23 | 中国水利水电第十四工程局有限公司 | Diverging device of water section is gushed on rich pool underground river of tunnel |
| CN105888693A (en) * | 2016-06-01 | 2016-08-24 | 中国云南路建集团股份公司 | Treating construction method for water burst of small underground river of highway tunnel |
| CN108119160A (en) * | 2017-12-13 | 2018-06-05 | 中国铁建大桥工程局集团有限公司 | A kind of reinforcement means close to underground river karst tunnel stratum |
| CN108222963A (en) * | 2017-12-27 | 2018-06-29 | 中铁二院工程集团有限责任公司 | The not contour longeron carrying stalk floor type lining cutting of tunnel bottom setting longitudinal direction collection drainage gallery and its drainage system construction |
| CN108343468A (en) * | 2018-04-24 | 2018-07-31 | 中铁二院工程集团有限责任公司 | Tunnel Engineering crosses underground river transverse direction temporary drainage construction |
-
2019
- 2019-02-20 CN CN201910126258.9A patent/CN109736884B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922303A (en) * | 2010-08-30 | 2010-12-22 | 中铁第四勘察设计院集团有限公司 | Method for treating tunnel passing through underground river karst hall |
| CN204899979U (en) * | 2015-08-19 | 2015-12-23 | 中国水利水电第十四工程局有限公司 | Diverging device of water section is gushed on rich pool underground river of tunnel |
| CN105888693A (en) * | 2016-06-01 | 2016-08-24 | 中国云南路建集团股份公司 | Treating construction method for water burst of small underground river of highway tunnel |
| CN108119160A (en) * | 2017-12-13 | 2018-06-05 | 中国铁建大桥工程局集团有限公司 | A kind of reinforcement means close to underground river karst tunnel stratum |
| CN108222963A (en) * | 2017-12-27 | 2018-06-29 | 中铁二院工程集团有限责任公司 | The not contour longeron carrying stalk floor type lining cutting of tunnel bottom setting longitudinal direction collection drainage gallery and its drainage system construction |
| CN108343468A (en) * | 2018-04-24 | 2018-07-31 | 中铁二院工程集团有限责任公司 | Tunnel Engineering crosses underground river transverse direction temporary drainage construction |
Non-Patent Citations (3)
| Title |
|---|
| 宜万铁路别岩槽隧道岩溶及岩溶水治理技术;朱鹏飞;;铁道标准设计(第03期);107-112 * |
| 武隆隧道暗河突水特点与整治技术分析;张小华, 刘清文;现代隧道技术(第03期);62-67 * |
| 隧道岩溶及特大涌水治理与施工技术;赵克东;;铁道建筑(第10期);52-55 * |
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