CN113217031A - Water plugging treatment method for tunneling roadway fault - Google Patents
Water plugging treatment method for tunneling roadway fault Download PDFInfo
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- CN113217031A CN113217031A CN202110600494.7A CN202110600494A CN113217031A CN 113217031 A CN113217031 A CN 113217031A CN 202110600494 A CN202110600494 A CN 202110600494A CN 113217031 A CN113217031 A CN 113217031A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 281
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000005641 tunneling Effects 0.000 title abstract description 13
- 238000011161 development Methods 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 claims description 13
- 230000001052 transient effect Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000011440 grout Substances 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims 6
- 230000002950 deficient Effects 0.000 claims 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 238000004381 surface treatment Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 2
- 238000004080 punching Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 10
- 239000002352 surface water Substances 0.000 description 9
- 239000003673 groundwater Substances 0.000 description 6
- 230000004520 agglutination Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/381—Setting apparatus or devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
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Abstract
The invention provides a tunneling roadway fault water plugging treatment method which comprises temporary plugging and drainage, wherein a water collecting device is used for carrying out temporary plugging and drainage on a water outlet point, the influence of water in the water outlet point on a roadway is reduced, then exploration is carried out, the development condition of a geological structure is found in detail, particularly the condition of an area near the water outlet point is found, the positions and the number of drain holes and grouting holes are determined based on the exploration condition, a drilling tool is used for punching, then grouting work is carried out, and then basal plane repairing is carried out on the water outlet point. The invention provides a method for processing water plugging of a tunneling roadway fault, which comprises the steps of firstly utilizing a water collecting device to temporarily plug a water outlet point which appears, reducing the influence of water in the roadway on the roadway, meanwhile, clearly knowing the change of underground water level through the arrangement of a water drainage cavity, a water pressure tester, an alarm and the like, realizing early warning, realizing the control of underground water pressure through the arrangement of an electromagnetic valve, and reducing the influence of the underground water pressure on the roadway.
Description
Technical Field
The invention relates to the technical field of water plugging treatment of a tunneling roadway, in particular to a fault water plugging treatment method of the tunneling roadway.
Background
In the process of tunneling a tunnel, a phenomenon of geological fault is inevitably encountered, and in the geological fault, even when the tunnel is planned, due to geological reasons, although a groundwater layer in the geology is avoided as much as possible, surface water on the ground or groundwater in the ground is very easy to flow out at the fault due to the existence of the fault surface and the fault zone, so after the whole tunnel is tunneled, the surrounding rock arranged on the outer side of the lining of the tunnel is softened due to the groundwater around the whole tunnel and the hydrodynamic pressure, and further the supporting pressure of the lining is further increased, and in addition, due to the soaking of the groundwater and the hydrodynamic pressure, the lining also has the gap, so that water enters the tunnel, and the whole tunnel is started to be collapsed, therefore, the process of tunneling the tunnel, the treatment of water blockage at a fault is increasingly important.
At present, in the tunnelling process, can set up the lining cutting in the tunnel, it is concrete, when the tunnelling, need strut the tunnel, and then make a whole and stable rock area that forms around the tunnel, in order to reach the purpose with country rock combined operation, and utilize the compression spray gun to spray the rock wall surface with the concrete, wall formation rock arch around the tunnel, the supporting role of full play country rock, the rock face also can be sealed simultaneously, and then reduce rock area weathering deformation, the life in extension tunnel, and the way of current waterproof leaking stoppage is: before the waterproof layer is drilled on the lining, grouting is carried out in the drilled holes to plug up water leakage points, and then the waterproof effect of the waterproof layer is assisted to eliminate water seepage of the tunnel.
How to solve the above technical problems is the subject of the present invention.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a reasonable-design method for treating water plugging of a tunneling roadway fault.
The technical scheme adopted by the invention for solving the technical problems is as follows: a fault water plugging treatment method for a driving roadway comprises the following steps:
s1, temporary plugging and drainage: defining the position of a water outlet point on a lining surface in a roadway, pretreating the roadway surface around the water outlet point on the lining surface of the roadway, simultaneously covering the water outlet point by using a water collecting device, wherein the tail end of the water collecting device is provided with a communicating pipeline, and the communicating pipeline is communicated with a water discharging pipeline in the roadway;
s2, exploration: in the face of the existing water outlet situation, a three-dimensional seismic exploration technology is utilized to find out the development situation of a geological structure around the water outlet point in detail, and then a transient electromagnetic detection technology is utilized to find out the situation of an area near the water outlet point, so that a data basis is provided for the next water plugging treatment step;
s3, drilling: based on the exploration condition of the steps, determining the position and the number of the grouting holes, determining the position and the number of the water drainage holes by a group hole dredging mode, and distinguishing the two holes, wherein the depth of the water drainage holes is greater than that of the grouting holes, and a water drainage cavity is arranged at the head end of the water drainage holes;
s4, pipe placing: the head end of a water drain pipe penetrates through the water drain hole to the water drain cavity, the tail end of the water drain pipe is provided with a water drain valve, the water drain valve is communicated with a water drain pipeline in a roadway, and the water drain pipe is in contact with the water drain hole and is reinforced through slurry;
s5, grouting: according to the geological structure development condition near the verified water outlet point, the grouting pipe carries out three-dimensional grouting from outside to inside and from shallow to deep on the region of the water outlet point through the grouting hole, and during deep grouting, cotton yarn is adopted to accelerate agglutination for pretreatment around the grouting pipe, so that the grouting effect is improved for preventing slurry leakage, and meanwhile, a transient electromagnetic detection technology is utilized for detection, and a water outlet cavity is reserved;
s6, basal plane treatment: at the moment, after grouting, the water amount is reduced specifically until the water amount disappears completely, the whole water collecting device is collected, and then basal plane treatment is carried out on the water outlet to finish the repair.
It is worth noting that when the water drainage cavity is reserved, the outer side of the lining waterproof layer may be a mountain body or a ground water layer, when the water drainage cavity belongs to the ground water layer, the slurry amount during grouting is controlled by using a transient electromagnetic technology, when the water drainage cavity belongs to the mountain body, the water drainage cavity is arranged at a gap of the mountain body, a drilling tool is used for arranging the water drainage cavity at the gap, and meanwhile, according to the position of a water outlet point, the water outlet reason is analyzed by combining the geological structure of the water outlet point, if the water drainage reason is changed through geology, the number of the water drainage holes can be increased or decreased at the position of the original water outlet point according to the specific geological structure, particularly the change of the ground tax water layer.
Preferably, when the pretreatment is carried out, in order to further improve the adsorption effect of the water collecting hopper and the roadway surface and further enhance the drainage work, the waterproof daub is used for smearing and leveling the cracks near the water outlet, and the small strands of seepage water of the peripheral rock cracks around the water outlet point are also blocked and reinforced in advance.
Preferably, an inflation pipeline is spirally wound outside the grouting pipe, the grouting pipe is placed in the grouting hole, the inflation pipeline is inflated by using the inflation device, the grouting pipe is fixed in the grouting hole, and the influence of vibration during grouting on the lining can be effectively reduced.
The temporary occlusion drainage step comprises: s101, smearing an oily paint around the water outlet, and treating the whole peripheral surface of the water outlet to be smooth; s102, placing a water collecting hopper at the water outlet, and adsorbing the water collecting hopper at the water outlet by using a rubber sucker arranged at the opening of a water collecting opening of the water collecting hopper and the water outlet; s103, connecting a water outlet of the water collecting hopper with the communicating pipeline, and communicating the communicating pipeline with a drainage pipeline in the roadway.
Preferably, the oil-based paint may be a waterproof primer, a lubricating grease, or the like.
Preferably, when the water collecting hopper is placed, due to the existence of roadway water pressure, the water collecting hopper is placed with certain difficulty, and the following steps can be adopted for operation.
Further, the temporary occlusion drainage step comprises: s101, preprocessing the periphery of a water outlet, and arranging a lantern ring around the water outlet by using a nail gun; s102, sleeving the water collecting tank in the lantern ring, connecting the communicating pipeline with the water collecting tank, and communicating the communicating pipeline with a drainage pipeline in the roadway.
Preferably, a filter screen is arranged at the head end part of the water drain pipe.
Preferably, an alarm is arranged on the drain valve.
Further, the electromagnetic water valve, the water pressure tester and the alarm are electrically connected.
On the basis of the original grouting structure, through the cooperation of the electromagnetic water valve and the water pressure tester, underground water pressure can be increased in rainy seasons when surface water flows into the underground through the gap, and the control of the underground water pressure can be realized by controlling the electromagnetic water valve.
According to the fault water plugging treatment method for the tunneling roadway surface, provided by the invention, the water collection device is used for temporarily plugging the existing water outlet point, the existing water quantity is plugged, meanwhile, the whole water quantity is drained, the water in the whole roadway is discharged, the influence of the water in the roadway on the roadway is reduced, and the service life of the roadway is prolonged.
The invention utilizes the unique drainage mode, monitors the water pressure at the fault by reserving the drainage cavity, the drainage pipeline arranged in the reserved hole and the water pressure tester reserved in the drainage pipeline, and further can know the water quantity change on the whole roadway, thereby judging the change of the whole roadway and improving the early warning performance of the whole roadway.
According to the invention, by utilizing the unique grouting mode, the inflation pipeline is wound outside the whole grouting pipe, the grouting pipe is placed in the grouting hole, and meanwhile, the inflation pipeline is inflated by the inflation device, and the grouting pipe is fixed in the grouting hole, so that the influence of vibration during grouting on the lining can be effectively reduced.
Drawings
FIG. 1 is a schematic view of the structure at a fault of the present invention;
FIG. 2 is a schematic diagram of the construction structure at the fault position of the present invention;
FIG. 3 is a schematic three-dimensional structure of the present invention at the water outlet;
FIG. 4 is a front view of the present invention at the point of water egress;
FIG. 5 is a schematic cross-sectional view taken along line A-A of the present invention;
FIG. 6 is a schematic cross-sectional view taken along line B-B of the present invention;
FIG. 7 is a schematic cross-sectional view taken along line C-C of the present invention;
wherein the figures are identified as: 1. a roadway; 2. lining; 3. a water outlet point; 4. a water collection device; 41. a water collecting hopper; 42. a rubber suction cup; 41', a collar; 42', a water collection trough; 5. a communicating pipe; 6. a water discharge pipeline; 7. grouting holes; 8. a water drain hole; 9. a water drainage cavity; 10. a drain pipe; 11. and (4) grouting pipes.
Detailed Description
Example one
Referring to fig. 1 to 7, the embodiment is a method for processing water plugging of a tunneling roadway fault, and includes the following steps:
s1, temporary plugging and drainage: the method comprises the steps of defining the position of a water outlet point on the surface of a lining 2 in a roadway 1, preprocessing the roadway surface around the water outlet point 3 on the lining surface of the roadway, covering the water outlet point by using a water collecting device 4, arranging a communicating pipeline 5 at the tail end of the water collecting device 4, and communicating the communicating pipeline with a drainage pipeline 6 in the roadway;
s2, exploration: in the face of the existing water outlet situation, a three-dimensional seismic exploration technology is utilized to find out the development situation of a geological structure around the water outlet point in detail, and then a transient electromagnetic detection technology is utilized to find out the situation of an area near the water outlet point, so that a data basis is provided for the next water plugging treatment step;
s3, drilling: based on the exploration condition of the steps, determining the position and the number of the grouting holes 7, determining the position and the number of the water drainage holes 8 by a group hole dredging mode, and distinguishing the two holes, wherein the depth of the water drainage holes is greater than that of the grouting holes, and a water drainage cavity 9 is arranged at the head end of each water drainage hole;
s4, pipe placing: the head end of a water drain pipe 10 penetrates through the water drain hole to the water drain cavity, the tail end of the water drain pipe is provided with a water drain valve, the water drain valve is communicated with a water drain pipeline in a roadway, and the water drain pipe is in contact with the water drain hole and is reinforced through slurry;
s5, grouting: according to the geological structure development condition near the verified water outlet point, the grouting pipe 11 carries out three-dimensional grouting from outside to inside and from shallow to deep on the region of the water outlet point through a grouting hole, and during deep grouting, cotton yarn is adopted to accelerate agglutination for pretreatment around the grouting pipe, so that the grouting effect is improved for preventing slurry leakage, and meanwhile, a transient electromagnetic detection technology is utilized for detection, and a water outlet cavity is reserved;
s6, basal plane treatment: at the moment, after grouting, the water amount is reduced specifically until the water amount disappears completely, the whole water collecting device is collected, and then basal plane treatment is carried out on the water outlet to finish the repair. Specifically, the two ends of the fixed rope are respectively fixedly connected with the two ends of the top and the bottom of the first fixed ring, and the fixed rope passes through the sliding wheel and is fixedly connected with the first movable ring at one end fixedly connected with the bottom end of the first movable ring.
Preferably, an inflation pipeline is spirally wound outside the grouting pipe, the grouting pipe is placed in the grouting hole, the inflation pipeline is inflated by using the inflation device, the grouting pipe is fixed in the grouting hole, and the influence of vibration during grouting on the lining can be effectively reduced.
Preferably, when the pretreatment is carried out, in order to further improve the adsorption effect of the water collecting hopper and the roadway surface and further enhance the drainage work, the waterproof daub is used for smearing and leveling the cracks near the water outlet, and the small strands of seepage water of the peripheral rock cracks around the water outlet point are also blocked and reinforced in advance.
The temporary occlusion drainage step comprises: s101, smearing an oily paint around the water outlet, and treating the whole peripheral surface of the water outlet to be smooth; s102, placing the water collecting hopper 41 at the water outlet, and adsorbing the water collecting hopper at the water outlet by using a rubber sucker 42 arranged at the opening of the water collecting hopper and the water outlet; s103, connecting the water outlet of the water collecting hopper 41 with the communication pipeline 5, and communicating the communication pipeline 5 with a drainage pipeline 6 in the roadway.
Preferably, the oil-based paint may be a waterproof primer, a lubricating grease, or the like.
Preferably, when the water collecting hopper is placed, due to the existence of roadway water pressure, the water collecting hopper is placed with certain difficulty, and the following steps can be adopted for operation.
Further, the temporary occlusion drainage step comprises: s101, preprocessing the periphery of a water outlet, and arranging a lantern ring 41' on the periphery of the water outlet by using a nail gun; s102, the water collecting tank 42' is sleeved in the lantern ring, the communication pipeline is connected with the water collecting tank, and the communication pipeline is communicated with a drainage pipeline in the roadway.
Preferably, a filter screen is arranged at the head end part of the water drain pipe.
Preferably, an alarm is arranged on the drain valve.
Further, the electromagnetic water valve, the water pressure tester and the alarm are electrically connected.
The arrangement of the water leakage cavity and the arrangement of the early warning structures such as the water pressure tester, the alarm and the like facilitates the measurement of the water pressure tester, so as to monitor the water pressure at a fault, particularly in rainy season, the amount of underground water is increased by the permeation of surface water through a gap, the increase of the amount of surface water can also enhance the dynamic water pressure if the dynamic water pressure exists outside the lining waterproof layer due to the increase of the amount of surface water, further has certain influence on the lining of the whole roadway, increases the probability of the water outlet point of the roadway and has certain influence on the safety of the roadway, the early warning structure is specially arranged, when the water pressure slowly increases, the early warning structure has the function of implementing real-time pressure relief when the water pressure reaches a certain water pressure, and has the condition of sudden water pressure increase or water pressure explosion decrease, the whole geological structure changes, and can implement the monitoring of the geological change around the whole roadway, early warning can be realized.
The working principle is as follows: according to the determined geological condition, the route of the roadway is further determined, when the roadway is determined, the underground water layer in the geological layer is avoided as far as possible, in the tunneling process of the roadway, the situation of geological faults cannot be avoided, and fault water flows caused by end gaps in the faults, so that the whole roadway can be easily collapsed when the whole device is used for the next step, and large defects are caused.
The method comprises the steps of utilizing a water collecting device to temporarily block and drain water outlet points according to the conditions of the existing water outlet points, reducing the influence of water in the water outlet points on a roadway, then exploring, determining the applicable environment of the whole roadway, utilizing a three-dimensional seismic exploration technology to find out the geological structure development condition in detail, simultaneously utilizing a transient electromagnetic detection technology to find out the condition of an area near the water outlet points, determining the positions and the number of drainage holes based on the exploration condition of the steps, determining the positions and the number of grouting holes, distinguishing the two holes, using a drilling tool to punch holes, penetrating the head end of a drainage pipe through the drainage holes into a drainage cavity, installing a drainage valve at the tail end of the drainage pipe, communicating the drainage valve with a drainage pipeline, performing three-dimensional grouting from outside to inside on the area of the drainage points through the grouting holes according to the verified condition, from shallow to deep, during deep grouting, the periphery of a grouting pipe is pretreated by adopting a cotton yarn accelerating coagulant, so that the leakage of the grout is mainly prevented, the whole grouting effect is improved, and meanwhile, a transient electromagnetic detection technology is utilized for detection, and a water drainage cavity is reserved; at this time, after grouting, the water amount starts to be reduced specifically until the water amount disappears completely, and then the broken gap is repaired, and then the repair is completed.
It is worth noting that when the pipe is placed, a water drainage cavity needs to be arranged at the end part of one end through which the water drainage pipe penetrates, the water drainage pipe penetrates through the water drainage hole to the water drainage cavity, a water drainage valve is arranged at the tail end of the water drainage pipe, and the water drainage pipe is connected with a set roadway water drainage pipeline.
After the water pressure tester is arranged in the drainage pipe, the subsequent tunneling work can affect the built roadway, particularly the whole fault, the water seepage of underground water or surface water through the gap can be influenced to a certain extent, the water seepage process of the underground water or the surface water through the gap can be accelerated, so that a gap is generated in the lining, and the safety of the whole roadway is further influenced, therefore, the mode of the gap can not determine the damage cause of the gap, the water plugging mode is generally adopted for plugging water by grouting, but the water quantity change positioned on the outer side of the lining can not be determined, therefore, the depth of the whole drainage hole is larger than that of the grouting hole, a water drainage cavity is arranged at the head end of the drainage hole, a water pressure tester is arranged in the drainage pipe, and due to the arrangement of the water drainage cavity and the arrangement of early warning structures such as the water pressure tester and the alarm, the water pressure tester is convenient to measure, so that the water pressure at a fault is monitored, particularly in rainy seasons, surface water permeates through a gap to increase the underground water amount, if dynamic water pressure exists on the outer side of a lining waterproof layer due to the increase of the surface water amount, the dynamic water pressure is also enhanced, the lining of the whole roadway is influenced to a certain extent, the probability of the water outlet point of the roadway is increased, and the safety of the roadway is influenced to a certain extent.
The technical features of the present invention which are not described in the above embodiments may be implemented by or using the prior art, and are not described herein again, of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and variations, modifications, additions or substitutions which may be made by those skilled in the art within the spirit and scope of the present invention should also fall within the protection scope of the present invention.
Claims (8)
1. A fault water plugging treatment method for a driving roadway surface is characterized by comprising the following steps:
s1, temporary plugging and drainage: the method comprises the steps of defining the position of a water outlet point on the surface of a lining (2) in a roadway (1), preprocessing the roadway surface around the water outlet point (3) on the lining surface of the roadway, simultaneously covering the water outlet point by using a water collecting device (4), and arranging a communicating pipeline (5) at the tail end of the water collecting device (4) to communicate the communicating pipeline with a drainage pipeline (6) in the roadway;
s2, exploration: in the face of the existing water outlet situation, a three-dimensional seismic exploration technology is utilized to find out the development situation of a geological structure around the water outlet point in detail, and then a transient electromagnetic detection technology is utilized to find out the situation of an area near the water outlet point, so that a data basis is provided for the next water plugging treatment step;
s3, drilling: based on the exploration condition of the steps, determining the position and the number of the grouting holes (7) by a group hole dredging mode, determining the position and the number of the water drainage holes (8), distinguishing the two holes, wherein the depth of the water drainage holes is greater than that of the grouting holes, and a water drainage cavity (9) is arranged at the head end of the water drainage holes;
s4, pipe placing: the head end of a drain pipe (10) penetrates through the drain hole to the drain cavity, the tail end of the drain pipe is provided with a drain valve, the drain valve is communicated with a drain pipeline in a roadway, and the drain pipe is in contact with the drain hole and is reinforced by slurry;
s5, grouting: according to the geological structure development condition near the verified water outlet point, the grouting pipe (11) carries out three-dimensional grouting from outside to inside and from shallow to deep on the region of the water outlet point through a grouting hole, and during deep grouting, cotton yarn accelerated coagulation is adopted around the grouting pipe for pretreatment, so that the slurry leakage is prevented, the grouting effect is improved, meanwhile, the transient electromagnetic detection technology is utilized for detection, and a water outlet cavity is reserved;
s6, basal plane treatment: at the moment, after grouting, the water amount is reduced specifically until the water amount disappears completely, the whole water collecting device is collected, and then basal plane treatment is carried out on the water outlet to finish the repair.
2. The excavation roadway fault water plugging treatment method according to claim 1, characterized in that: the temporary occlusion drainage step comprises:
s101, smearing an oily paint around the water outlet, and treating the whole peripheral surface of the water outlet to be smooth;
s102, placing a water collecting hopper (41) at the water outlet, and adsorbing the water collecting hopper at the water outlet by using a rubber sucker (42) arranged at the opening of a water collecting opening of the water collecting hopper and the water outlet;
s103, connecting a water outlet of the water collecting hopper (41) with the communicating pipeline (5), and communicating the communicating pipeline (5) with a drainage pipeline (6) in the roadway.
3. The excavation roadway fault water plugging treatment method according to claim 1, characterized in that: the temporary occlusion drainage step comprises:
s101, preprocessing the periphery of a water outlet, and arranging a lantern ring (41') around the water outlet by using a nail gun;
s102, sleeving a water collecting tank (42') in the lantern ring, connecting the communication pipeline with the water collecting tank, and communicating the communication pipeline with a drainage pipeline in the roadway.
4. The fault water plugging treatment method for the heading roadway surface according to claim 1, characterized by comprising the following steps: the base surface treatment step comprises:
s601, determining the condition of the water outlet point, and primarily judging the geological structure of the water outlet point;
s602, after the preliminary judgment, further detecting the vicinity of a water outlet point by using a concrete quality detection device;
s603, through further detection results, adopting different repairing modes, and when only a small strand of seepage water appears at a water outlet point, smearing and leveling by adopting waterproof daub; when a large crack appears at a water outlet point, a plurality of anchor rods are arranged along the cracked gap in a staggered manner, concrete grout is sprayed on the cracked gap, and after the concrete grout is completely solidified, the concrete grout is subjected to face repairing; if the concrete at the water outlet is defective, cutting off the concrete at the water outlet, removing the defective concrete, arranging a plurality of anchor rods on the cut concrete in a criss-cross manner, spraying concrete grout on the broken gap, and finishing the concrete after the concrete is completely solidified.
5. The excavation roadway fault water plugging treatment method according to claim 1, characterized in that: the head end part of the water drain pipe is provided with a filter screen.
6. The excavation roadway fault water plugging treatment method according to claim 1, characterized in that: the water drain pipeline is provided with a water pressure tester, and the water drain valve is an electromagnetic water valve.
7. The excavation roadway fault water plugging treatment method according to claim 4, characterized in that: an alarm is arranged on the water drain valve.
8. The excavation roadway fault water plugging treatment method according to claim 5, characterized in that: the electromagnetic water valve, the water pressure tester and the alarm are electrically connected.
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| CN202110600494.7A CN113217031A (en) | 2021-05-31 | 2021-05-31 | Water plugging treatment method for tunneling roadway fault |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439505A (en) * | 2021-11-29 | 2022-05-06 | 陕西彬长孟村矿业有限公司 | Three-dimensional grouting method for roadway of roadway engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439505A (en) * | 2021-11-29 | 2022-05-06 | 陕西彬长孟村矿业有限公司 | Three-dimensional grouting method for roadway of roadway engineering |
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Application publication date: 20210806 |