CN109944256A - A kind of underground engineering vertical lift well restoring and fastening method - Google Patents
A kind of underground engineering vertical lift well restoring and fastening method Download PDFInfo
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- CN109944256A CN109944256A CN201910262022.8A CN201910262022A CN109944256A CN 109944256 A CN109944256 A CN 109944256A CN 201910262022 A CN201910262022 A CN 201910262022A CN 109944256 A CN109944256 A CN 109944256A
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Abstract
The invention discloses a kind of underground engineering vertical lift well restoring and fastening methods, comprising the following steps: a, carries out curtain-grouting to elevator surrounding side wall and bottom plate；B, elevator surrounding side wall and underplate concrete face cement slurry are polished to exposing base；C, base's lacing wire of more L-types is drilled and is implanted on the elevator surrounding side wall and bottom plate after polishing；D, after the completion of bar planting, in elevator surrounding side wall and bottom plate substrate surface brushing interface glue；E, steel bushing is set in elevator, and there are gaps between steel bushing and elevator surrounding side wall and bottom plate, and the steel plate lacing wire of more L-types is provided on steel bushing drum outer wall；F, after steel bushing is installed, grouting material is poured between steel bushing and hoistway wall.Method construction is simple in the present invention is convenient, can be realized and carries out repairing and reinforcement to the vertical lift well for having already appeared leakage, avoids accumulating a large amount of mud and sewage because of infiltration in elevator, to ensure the normal work of elevator.
Description
Technical field
The present invention relates to underground engineering field, in particular to a kind of underground engineering vertical lift well restoring and fastening method.
Background technique
In order to develop and use Underground Space Resource, people built as lower room, underground railway, vcehicular tunnel, underwater
The underground engineerings such as tunnel, underground common trench and street crossing underpass.In underground engineering construction, in order to which the later period installs vertical electricity
Ladder, it will usually carry out vertical lift well construction, often will do it elevator surrounding side wall and underplate concrete pours, so as to will be electric
Stair shaft is kept apart with prime stratum.
When elevator sidewall and underplate concrete are when there is crack in the later period, since elevator sidewall and plate outer side are
Ground layer soil body has underground water more abundant, and a large amount of mud can be then accumulated in elevator and gush Sha Xianxiang with water burst, are led
Sending a telegraph ladder can not work normally.For this purpose, when the mass defects such as crack occur in elevator sidewall and underplate concrete, how to electricity
Stair shaft carries out repairing and reinforcement processing to avoid its infiltration, is the project that concrete construction personnel need to discuss and study.
Summary of the invention
Present invention aims at: for when there are the mass defects such as crack in elevator sidewall and underplate concrete, how
The problem of repairing and reinforcement processing is to avoid its infiltration is carried out to elevator, a kind of underground engineering vertical lift well repairing and reinforcement is provided
Method after handling former elevator sidewall and bottom plate base, and pours setting in elevator sidewall and bottom plate
Impervious layer avoids accumulating a large amount of mud and sewage because of infiltration in elevator to realize the repairing and reinforcement to vertical lift well,
Ensure the normal work of elevator.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of underground engineering vertical lift well restoring and fastening method, comprising the following steps:
A, curtain-grouting is carried out to elevator surrounding side wall and bottom plate；
B, elevator surrounding side wall and underplate concrete face cement slurry are polished to exposing base；
C, base's lacing wire of more L-types is drilled and is implanted on the elevator surrounding side wall and bottom plate after polishing；
D, after the completion of bar planting, in elevator surrounding side wall and bottom plate substrate surface brushing interface glue；
E, steel bushing is set in elevator, and there are gap between steel bushing and elevator surrounding side wall and bottom plate,
The steel plate lacing wire of more L-types is provided on steel bushing drum outer wall；
F, after steel bushing is installed, grouting material is poured between steel bushing and hoistway wall.
The present invention guarantees elevator surrounding soil by carrying out curtain-grouting to surrounding side wall and bottom plate before elevator is reinforced
Body solidifies without cavity, and injection slurry can penetrate into soil body gap, and water flow is truncated with this after solidification, with impervious leakage-stopping
Effect, by polishing elevator surrounding side wall and underplate concrete face cement slurry to exposing base, and the elevator after polishing
Base's lacing wire of more L-types is drilled and is implanted on surrounding side wall and bottom plate, and in elevator surrounding side wall and bottom plate base table
Interface glue is brushed in face, to ensure that subsequent newly-increased impervious layer is connect reliably with elevator original concrete, by being arranged in elevator
Steel bushing, and there are gaps between steel bushing and elevator surrounding side wall and bottom plate, and between steel bushing and hoistway wall
Grouting material is poured, due to being provided with the steel plate lacing wire of more L-types on steel bushing drum outer wall, it is ensured that steel bushing and the newly-increased grouting bed of material
Connection is reliable, i.e., impervious layer structure is formed outside elevator surrounding side wall and bottom plate, and the steel bushing is both used as and pours impervious layer
Template, itself be also used as together impervious barrier, further prevent Groundwater infiltration elevator in, this method construction is simple side
Just, it can be realized the repairing and reinforcement to vertical lift well, avoid accumulating a large amount of mud and sewage because of infiltration in elevator, ensure
The normal work of elevator.
As a preferred solution of the present invention, the steel bushing includes the sidewall steel plate of steel plate of baseplate and surrounding, the side wall
Steel plate is located at steel plate of baseplate surrounding and forms with steel plate of baseplate welding in elevator.Using such steel bushing barrel structure,
Not only it is convenient for installation of the steel bushing in elevator, but also the verticality of adjustment sidewall steel plate and steel plate of baseplate can be facilitated.
As a preferred solution of the present invention, base's lacing wire is shifted to install with the steel plate lacing wire.By drawing base
Muscle is shifted to install with steel plate lacing wire, so that two kinds of lacing wire dispersed placements, are conducive to improve newly-increased impervious layer and elevator original coagulation
The attachment force of soil, steel bushing.
As a preferred solution of the present invention, the long 140mm of base's lacing wire, bending end long 50mm, implantation depth 80mm,
And all base's lacing wire implantation positions are in quincuncial arrangement.After base's lacing wire is implanted into elevator surrounding side wall and bottom plate,
The long 60mm of base's lacing wire exposed junction.
As a preferred solution of the present invention, the long 100mm of steel plate lacing wire, the long 50mm of bending end, and all steel plates are drawn
Muscle is in quincuncial arrangement in the setting position of steel bushing drum outer wall.By being arranged in this way in the sidewall steel plate of steel plate of baseplate and surrounding
Steel plate lacing wire after, positioned convenient for the size to steel plate apart from hoistway wall, so that the welding of steel bushing is more square
Just quickly.
As a preferred solution of the present invention, before to elevator surrounding side wall and bottom plate curtain-grouting, first in elevator
Draining dredging is carried out, to facilitate carry out subsequent construction.
As a preferred solution of the present invention, after the grouting material solidification wait pour, antirust treatment is carried out to steel bushing inner wall, is kept away
Exempt from steel bushing inner wall to corrode.
As a preferred solution of the present invention, the antirust treatment is in the first brushing twice epoxy iron red shop primary coat of steel bushing inner wall
Material, then brush three epoxy glass flake coating materials.By the way that two kinds of antirusting paints are successively arranged in steel bushing inner wall, be conducive to mention
High rustless property.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
The present invention guarantees elevator surrounding soil by carrying out curtain-grouting to surrounding side wall and bottom plate before elevator is reinforced
Body solidifies without cavity, and injection slurry can penetrate into soil body gap, and water flow is truncated with this after solidification, with impervious leakage-stopping
Effect, by polishing elevator surrounding side wall and underplate concrete face cement slurry to exposing base, and the elevator after polishing
Base's lacing wire of more L-types is drilled and is implanted on surrounding side wall and bottom plate, and in elevator surrounding side wall and bottom plate base table
Interface glue is brushed in face, to ensure that subsequent newly-increased impervious layer is connect reliably with elevator original concrete, by being arranged in elevator
Steel bushing, and there are gaps between steel bushing and elevator surrounding side wall and bottom plate, and between steel bushing and hoistway wall
Grouting material is poured, due to being provided with the steel plate lacing wire of more L-types on steel bushing drum outer wall, it is ensured that steel bushing and the newly-increased grouting bed of material
Connection is reliable, i.e., impervious wall construction is formed outside elevator surrounding side wall and bottom plate, and the steel bushing is both used as and pours impervious layer
Template, itself be also used as together impervious barrier, further prevent Groundwater infiltration elevator in, this method construction is simple side
Just, it can be realized the repairing and reinforcement to vertical lift well, avoid accumulating a large amount of mud and sewage because of infiltration in elevator, ensure
The normal work of elevator.
Detailed description of the invention
Fig. 1 is underground engineering vertical lift well restoring and fastening method flow chart of the present invention.
Fig. 2 is underground engineering vertical lift well repairing and reinforcement structural schematic diagram of the present invention.
Marked in the figure: 1- elevator, 11- elevator sidewall, 12- elevator bottom plate, 2- steel bushing, 21- steel plate of baseplate,
22- sidewall steel plate, the lacing wire of 3- base, 4- steel plate lacing wire, 5- impervious layer.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment
The present embodiment provides a kind of underground engineering vertical lift well restoring and fastening methods；
As Figure 1-Figure 2, the underground engineering vertical lift well restoring and fastening method in the present embodiment, including following step
It is rapid:
A, curtain-grouting is carried out to 1 surrounding side wall of elevator and bottom plate；
B, elevator surrounding side wall and underplate concrete face cement slurry are polished to exposing base；
C, base's lacing wire 3 of more L-types is drilled and is implanted on the elevator surrounding side wall and bottom plate after polishing；
D, after the completion of bar planting, in elevator surrounding side wall and bottom plate substrate surface brushing interface glue；
E, steel bushing 2 is set in elevator, and there are gap between steel bushing and elevator surrounding side wall and bottom plate,
The steel plate lacing wire 4 of more L-types is provided on steel bushing drum outer wall；
F, after steel bushing is installed, grouting material impervious layer 5 is poured between steel bushing and hoistway wall.
The present invention guarantees elevator surrounding soil by carrying out curtain-grouting to surrounding side wall and bottom plate before elevator is reinforced
Body solidifies without cavity, and injection slurry can penetrate into soil body gap, and water flow is truncated with this after solidification, with impervious leakage-stopping
Effect, by polishing elevator surrounding side wall and underplate concrete face cement slurry to exposing base, and the elevator after polishing
Base's lacing wire of more L-types is drilled and is implanted on surrounding side wall and bottom plate, and in elevator surrounding side wall and bottom plate base table
Interface glue is brushed in face, to ensure that subsequent newly-increased impervious layer is connect reliably with elevator original concrete, by being arranged in elevator
Steel bushing, and there are gaps between steel bushing and elevator surrounding side wall and bottom plate, and between steel bushing and hoistway wall
Grouting material is poured, due to being provided with the steel plate lacing wire of more L-types on steel bushing drum outer wall, it is ensured that steel bushing and the newly-increased grouting bed of material
Connection is reliable, i.e., impervious wall construction is formed outside elevator surrounding side wall and bottom plate, and the steel bushing is both used as and pours impervious layer
Template, itself be also used as together impervious barrier, further prevent Groundwater infiltration elevator in, this method construction is simple side
Just, it can be realized the repairing and reinforcement to vertical lift well, avoid accumulating a large amount of mud and sewage because of infiltration in elevator, ensure
The normal work of elevator.
It is first clear to carrying out draining in elevator before to elevator surrounding side wall and bottom plate curtain-grouting in the present embodiment
It becomes silted up, to facilitate carry out subsequent construction.Manually use water pump pump drainage to road surface city planting ductwork in ponding in elevator, in elevator
It builds after slag, mud etc. are cleared up to concentrate and transport.
In the present embodiment, in order to guarantee quality and safety after the completion of elevator is reinforced, prevent broke-out diseases from gushing Sha Xianxiang,
Curtain-grouting, the cloth well format of the curtain-grouting are as follows: the bottom hole spacing borehole wall >=300mm are carried out to elevator surrounding side wall and bottom plate
Rectangle cloth hole, pitch-row 500mm；Well is outer apart from the borehole wall >=300mm cloth hole, pitch-row 500mm.
In the present embodiment, polishing elevator surrounding side wall and underplate concrete face, grinding depth about 1cm polish off cement
Slurry is finally cleared up buffed surface, is cleaned, is dried, for surface holes until exposing solid base's (exposing fresh stone)
Hole and uneven place are smoothed out with epoxy resin mortar.
In the present embodiment, when being implanted into base's lacing wire, positioning first is carried out to elevator sidewall 11 and elevator bottom plate 12 and is put
Line is marked bore position with marking pen, is drilled using electric hand drill, and bit diameter is compared with the base big 1~2mm of lacing wire diameter, hole
It is in quincuncial arrangement away from 200 × 200mm, after pore-forming, Ying Xianyong wire brush carries out borehole cleaning, then the compressed air oil-free with cleaning
Or dust in manual air blowing cylinder cleaning hole, a small amount of industry third should not be stained with clean cotton yarn when necessary less than 3 times repeatedly by handling
Ketone cleans hole wall, if after pore-forming cannot bar planting in time, need to observe hole location repeatedly, check whether crack or other damages,
The related measure of guard aperture is carried out in time.Base's lacing wire is process using 10 screw-thread steel of HRB400E Φ, and base's lacing wire is long
140mm, bending end long 50mm, implantation depth 80mm, the long 60mm of exposed junction after implantation.According to bar planting depth, in base's lacing wire
Then upper mark implantation depth is inserted to hole, side insert edge is slowly rotated to same direction, until meet implantation depth, anchor at this time
Gu agent is overflowed out of hole.The reinforcing bar of implantation must orientation immediately, keep the gap between the reinforcing bar and hole wall of implantation uniform.Anchor
Gu before agent is not up to curing time as defined in products instruction, maintenance should be stood, planted reinforcing bar must not be disturbed, makes it not by outer
Power effect, until condensation, and send special messenger's scene protection.Chemical time≤13min of summer gel, curing time≤
60min。
In the present embodiment, the steel bushing 2 includes the sidewall steel plate 22 of steel plate of baseplate 21 and surrounding, the sidewall steel plate 22
It is located at 21 surrounding of steel plate of baseplate and is formed with steel plate of baseplate welding in elevator.Using such steel bushing barrel structure, both
Convenient for installation of the steel bushing in elevator, and the verticality of adjustment sidewall steel plate and steel plate of baseplate can be facilitated.
In the present embodiment, steel plate of baseplate and sidewall steel plate use Q235-B grades of steel, thick 6mm, reply steel plate bonding before processing
Face is polished, and removing rust and oxidation film are removed, until there is metallic luster, and inside galvanized anticorrosive is handled.According to live electricity
Stair shaft dimensioned steel plate, steel plate of baseplate and sidewall steel plate can be welded by plurality of steel plates.The steel plate lacing wire uses
10 screw-thread steel of HRB400E Φ is process, and is welded in steel plate of baseplate and sidewall steel plate, spacing 200 × 200mm, quincunx
Arrangement, and the long 100mm of steel plate lacing wire, the long 50mm of bending end.As being arranged in steel plate of baseplate and surrounding sidewall steel plate
It after steel plate lacing wire, is positioned convenient for the size to steel plate apart from hoistway wall, so that the welding of steel bushing is more convenient
Quickly.
In the present embodiment, it must be cleared up in elevator surrounding side wall and bottom plate substrate surface full coat interface glue, substrate surface
Completely, without ash, grease stain, bright water and other glues are floated, guarantee concrete base layer surface without loose structure.Using coating process, will match
Interface glue round brush, paintbrush or the scraper set uniformly are applied to substrate surface, and not trickled with interface glue is advisable, and carries out
Stipulated time hangs.
In the present embodiment, when carrying out installation steel bushing, first mounting base steel plate, steel plate of baseplate is apart from elevator bottom plate
100mm, it is fixed after leveling, then sidewall steel plate is installed, sidewall steel plate is fixed after leveling apart from elevator sidewall 100mm, finally will
The sidewall steel plate and steel plate of baseplate of surrounding are welded to connect, and the external corner at steel plate and steel plate splicing uses Size of welds for the weldering of 6mm
Seam connection, other stitching portions such as external corner are connected using the butt weld of full penetration groove, and the credit rating of weld seam is second level.
In the present embodiment, base's lacing wire 3 is shifted to install with the steel plate lacing wire 4.By making base's lacing wire and steel plate
Lacing wire shifts to install, so that two kinds of lacing wire dispersed placements, are conducive to improve newly-increased concrete layer and elevator original concrete, steel bushing
The attachment force of cylinder.
In the present embodiment, after steel bushing is installed, poured using IV class strength cement-based grouting material, compression strength must not
It is faster than concrete lift using the intensity of the grouting material lower than C35, and in the case where water burst gushes sand, in steel bushing after pouring
Impervious layer is formed between hoistway wall.Grouting material uses mechanical stirring, mixing time 2~3 minutes, stirs evenly.The side of pouring
Formula uses gravity grouting method, and grouting should be continuous, cannot be interrupted and shorten grouting time as far as possible, forbid to vibrate in filling process.It fills
The curing temperature of slurry and steel plate bonding is not less than 15 DEG C, after pouring construction, should stand 72h and carry out supporting for solidification process
Shield, during maintenance, being reinforced position must not be by the influence of any shock and vibration.The temperature of care environments should meet injection material
Expect the regulation of products instruction.
In the present embodiment, after the grouting material solidification wait pour, antirust treatment is carried out to steel bushing inner wall, is avoided in steel bushing
Wall corrodes.The antirust treatment is then to brush three epoxies in the first brushing twice epoxy iron red shop primer of steel bushing inner wall
Glass flake coating materials, thickness cannot be less than 400um.Before brushing, by grouting material residue, welding slag, greasy dirt, the dust of surface of steel plate
Equal sundries are cleaned out.Direction should be kept consistent when brushing, brush uniformly, it is neat to connect stubble.Second is brushed after first layer is dry
Time, second time brushing direction should be vertical with first pass, connects a batch straight uniform.Successively brushing investment precoat.
In the present embodiment, when trimming, before counterpart should oil by base material distance away from the outer surface within the scope of groove 20mm,
Dirt, iron rust etc. are cleaned out, and expose metallic luster.At steel plate butt welding prepared by groove, and using machining groove, angle is
30~35 °.When steel plate counterpart, alignment clearance is 1~4mm, and root face is 1~2mm, and tack welding is 2 points, is located at both ends, length is
10~15mm, 2 ° of reversible deformation, and accomplish that two sides flushes.Backing run requires through welding, forming, and heavy wall welding bead bottom welding bead to weld
Meat thickness must not be less than 3mm.Twice welding line joint should be staggered 20mm or more at weld bond, not allow connector to be overlapped.Before weldering carefully
Check the defects of tack welding whether there is crackle, it can formal welding after should being handled completely such as discovery.Guarantee the starting the arc and receives arc
The quality at place, arc crater will fill up, it is ensured that weldquality.Timely scarfing cinder in welding process, the smooth reinforcement of weld of face of weld
Gentle transition, arc crater are answered full.According to steel plate model and welding position, selects to be suitable for core diameter and welding current, guarantee weldering
Seam and steel plate fusion are good.Welding ground should contact well with steel plate, prevent steel plate of burning because of the starting the arc.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in original of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within reason.
Claims (8)
1. a kind of underground engineering vertical lift well restoring and fastening method, which comprises the following steps:
A, curtain-grouting is carried out to elevator surrounding side wall and bottom plate；
B, elevator surrounding side wall and underplate concrete face cement slurry are polished to exposing base；
C, base's lacing wire of more L-types is drilled and is implanted on the elevator surrounding side wall and bottom plate after polishing；
D, after the completion of bar planting, in elevator surrounding side wall and bottom plate substrate surface brushing interface glue；
E, steel bushing is set in elevator, and there are gaps between steel bushing and elevator surrounding side wall and bottom plate, in steel
The steel plate lacing wire of more L-types is provided on sleeve outer wall；
F, after steel bushing is installed, grouting material is poured between steel bushing and hoistway wall.
2. underground engineering vertical lift well restoring and fastening method according to claim 1, which is characterized in that the steel bushing
Sidewall steel plate including steel plate of baseplate and surrounding, the sidewall steel plate is located at steel plate of baseplate surrounding simultaneously and steel plate of baseplate is in electricity
Welding forms in stair shaft.
3. underground engineering vertical lift well restoring and fastening method according to claim 1, which is characterized in that the base draws
Muscle is shifted to install with the steel plate lacing wire.
4. underground engineering vertical lift well restoring and fastening method according to claim 1, which is characterized in that the base draws
The long 140mm of muscle, bending end long 50mm, implantation depth 80mm, and all base's lacing wire implantation positions are in quincuncial arrangement.
5. underground engineering vertical lift well restoring and fastening method according to claim 1, which is characterized in that the steel plate is drawn
The long 100mm of muscle, the long 50mm of bending end, and all steel plate lacing wires are in quincuncial arrangement in the setting position of steel bushing drum outer wall.
6. underground engineering vertical lift well restoring and fastening method according to claim 1, which is characterized in that elevator
Before surrounding side wall and bottom plate curtain-grouting, first to carrying out draining dredging in elevator.
7. underground engineering vertical lift well restoring and fastening method according to claim 1, which is characterized in that filling to be poured
After slurry curing, antirust treatment is carried out to steel bushing inner wall.
8. underground engineering vertical lift well restoring and fastening method according to claim 7, which is characterized in that at the antirust
Reason is in the first brushing twice epoxy iron red shop primer of steel bushing inner wall, then brushes three epoxy glass flake coating materials.
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| CN201910262022.8A CN109944256B (en) | 2019-04-02 | 2019-04-02 | Method for repairing and reinforcing vertical elevator shaft of underground engineering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910262022.8A CN109944256B (en) | 2019-04-02 | 2019-04-02 | Method for repairing and reinforcing vertical elevator shaft of underground engineering |
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| CN109944256B CN109944256B (en) | 2020-10-16 |
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| JPH08284194A (en) * | 1995-04-11 | 1996-10-29 | Seibu Polymer Corp | Repairing material for concrete structure under ground and repairing method therefor |
| US20040050006A1 (en) * | 2000-10-30 | 2004-03-18 | Park Sang Tae | Composite panel for reparing, reinforcing con'c body and method of using the same |
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