CN103015538A - Leakage prevention device and leakage treatment method for concrete structure deformation joint - Google Patents
Leakage prevention device and leakage treatment method for concrete structure deformation joint Download PDFInfo
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- CN103015538A CN103015538A CN2011102827369A CN201110282736A CN103015538A CN 103015538 A CN103015538 A CN 103015538A CN 2011102827369 A CN2011102827369 A CN 2011102827369A CN 201110282736 A CN201110282736 A CN 201110282736A CN 103015538 A CN103015538 A CN 103015538A
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Abstract
The invention discloses a leakage prevention device for a concrete structure deformation joint. The leakage prevention device comprises a deformation joint body. A first water stop is arranged at the middle part of the deformation joint body and divides the deformation joint body into an upper layer and a lower layer. The lower layer is filled with leakage plugging agent. The upper layer is filled with non-solidified materials. Second water stops are arranged above the upper layer, are fixedly arranged on the two sides of the opening of the deformation joint and are depressed towards the internal part of the deformation joint body. Since the leakage plugging agent is injected into the lower layer of the deformation joint by adopting a high-pressure grouting construction method, the non-solidified materials are injected into the upper layer of the deformation joint by adopting a low-pressure grouting construction method and the detachable or built-in sealing water stops are installed at the opening of the deformation joint, the leakage prevention device has the advantages that the leakage can be effectively prevented from occurring in the deformation joint, the leakproof time is longer, the influence caused by the environment is avoided, the stability is better and the popularization and application values are great.
Description
Technical field
The present invention relates to building field, particularly relate to a kind of percolator and method for treating seepage of concrete structure deformation joint.
Background technology
Develop rapidly along with society, more and more new large scale of constructions, the building of large scale are constantly built, because building is too huge, consider the impact of the factors such as flexible, sedimentation and antidetonation, adopt the way of prearrangement of deformation amount seam during design, to solve the problem on deformation that produces because of factors such as the temperature difference, sedimentation and antidetonations, yet because the factor affecting of the aspects such as technology, design, material, construction and cost, the waterproof at deformation joint position is to become weak link, seepage very easily occurring, almost is nine leakages of ten seams.Deformation joint oozes, leaks, cause the seam both sides mouldy because of infiltration, the pollution blackout of leaking, affect the attractive in appearance of building and use function, the even more serious durability that will have influence on structure and safety, the seepage of deformation joint has become one of key factor of workmanship, therefore make structural safety and normal the use for guaranteeing, must conscientiously administer leakage problems.Because its leakage cause complicated and changeable, the seepage of deformation joint have become the focus of paying close attention in the industry, administer also more thorny.
The seepage main cause of deformation joint has: 1, concrete placing is front to the waterstop in the deformation joint, does not take feasible fixation or fixing means improper; 2, waterstop joint lap-joint bonding is bad, can not form the water proof ring of sealing; 3, because concrete vibrating is not tight, the place leaves the space at waterstop, becomes the passage of percolating water; 4, uneven because of foundation settlement, building produces distortion, and waterstop is overstepped the extreme limit by drawing crack, causes percolating water.
Because the formed concretion body strength of oil soluble polyurethane is large, anti-permeability is good, but elasticity is little, plugging effect is relatively poor at the water burst place, all is the injected water based polyurethane generally, allows aqueous polyurethane and water react, expand, leakage area is blocked to reach the effect of leak stopping, but the time one is long, still Seepage can occur.
The gel of soluble polyurethane forms induration in deformation joint with after the water reaction, induration can absorb certain moisture and swelling, and then produces pressure, blocks leakage passage.Weak point is in the situation of the long-term dehydration of induration of water absorption and swelling, also can dehydration shrink, and the induration after shrinking again meet water can not swelling or swelling ratio not enough, then very likely cause having lost waterproof effect and " the multiple leakage ".
Generally to the administration way avris borings of adopting at concrete faulted joint in concrete broken crack, bury Water slop injector, ejection for water plugging more.This has certain stagnant water effect, but begins again after a while to leak.If in a sidetracking hole of concrete faulted joint, shutoff is not done again at former concrete faulted joint place, and slurries just can't enter the deformation joint depths.After slurries were injected into, there was water the below of slurries, and water is incompressible, and the top deformation joint is without constraint, slurries under very little pressure-acting, the very natural top that flows to, and having condensed.Above being stitched by the pressure extrusion deformation in the unconfined situation, at this moment just be identified as slip casting and finish.The water of below, slit remains water, and the top only is the gel of one deck polyurethane, in case behind the polyurethane expander dehydration drying shrinkage on top layer, begin again seepage.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of percolator and method for treating seepage of concrete structure deformation joint, has preferably anti-seepage effect, has guaranteed the reliability and stability of building.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the percolator that a kind of concrete structure deformation joint is provided, comprise the deformation joint body, described deformation joint body middle part is provided with the first waterstop, described the first waterstop is divided into the upper and lower with the deformation joint body, and described lower floor is filled with sealing agent, and described upper strata is filled with non-solidifying substance, top, described upper strata is provided with the second waterstop, and described the second waterstop is fixed on the sealing both sides of deformation joint.
In a preferred embodiment of the present invention, the sealing of described deformation joint body is provided with groove, and described the second waterstop is arranged in the groove, and the second waterstop is to deformation joint body sunken inside.
In a preferred embodiment of the present invention, described the second waterstop is built-in rubber fastening band, built-in rubber fastening band both sides are adhesive with respectively rubber strip, and the rubber strip top covers the layer of metal cover plate, and described built-in rubber fastening band is fixed by crab-bolt or adhesive.
In a preferred embodiment of the present invention, described the second waterstop is steel plate water stopper, and described built-in sealing steel plate water stopper is directly fixing by crab-bolt or adhesive.
In a preferred embodiment of the present invention, described deformation joint body both sides evenly offer respectively some inclined holes, be provided with intrusion pipe in the described inclined hole, described intrusion pipe comprises upstream face high pressure pouring pipe and back side low-pressure injection pipe, described upstream face high pressure pouring pipe is connected with deformation joint lower floor, described back side low-pressure injection pipe is connected with the deformation joint upper strata, and described intrusion pipe is the setting of 30-60 degree.
In a preferred embodiment of the present invention, described the first waterstop comprises Water slop injector and high pressure plug.
In a preferred embodiment of the present invention, a kind of method for treating seepage of concrete structure deformation joint in turn includes the following steps:
One, removes the seepage place foreign material, along deformation joint two side perforatings, hole to the 1/2-2/3 degree of depth of groundwork thickness, the aperture is 12-16mm, pitch-row is between the 150mm-300mm, the first waterstop is installed, and screw high pressure plug on the first waterstop, deformation joint is divided into the upper and lower, imbed upstream face high pressure pouring pipe in the deformation joint both sides, described upstream face high pressure pouring pipe is connected with deformation joint lower floor, then adopts the high-pressure slip-casting mode to deformation joint lower floor pressure injection sealing agent, until anhydrous oozing out in the seam;
Two, offer some inclined holes in the deformation joint both sides, inclined hole is the setting of 30-60 degree, and the aperture is 18-30mm, pre-buried back side low-pressure injection pipe in inclined hole, described back side low-pressure injection pipe passes into the deformation joint upper strata, then with epoxy mortar sealing back side low-pressure injection pipe;
Three, in the punching of deformation joint both sides unwrapping wire, implant crab-bolt with anchoring adhesive in the hole, the crab-bolt spacing is 200-400mm, suitably encrypts at corner;
Four, cleaning and repair distortion seam both sides basic unit, polish downwards basic unit and repairing form the groove that the degree of depth is not more than 10mm, built-in rubber fastening band or built-in sealing steel plate water stopper are installed, and are fixed with crab-bolt or adhesive.
Five, use grouting machine by back side low-pressure injection pipe non-solidifying substance to be poured on the deformation joint upper strata, after having filled non-solidifying substance in the deformation joint, use steel wire that back side low-pressure injection pipe is tightened, finish the seepage treatment of deformation joint.
In a preferred embodiment of the present invention, in the step 4, built-in rubber fastening band is installed to be comprised the steps: to adopt first the special (purpose) rubber adhesive respectively to paste the thick rubber strip of 2mm-3mm one in the deformation joint both sides, built-in rubber fastening band is placed on the deformation joint, the bonding width of built-in rubber fastening band in the basic unit of deformation joint both sides respectively is not less than 100mm, place again rubber strip one in built-in rubber fastening band both sides, then on rubber strip, respectively cover the layer of metal cover plate and fix with crab-bolt.
In a preferred embodiment of the present invention, described rubber strip adopts the thick butyl rubber waterproof sealing adhesive tape of 2mm-3mm.
In a preferred embodiment of the present invention, in the step 4, built-in sealing steel plate water stopper is installed to be comprised the steps: first built-in sealing steel plate water stopper and deformation joint both sides basic unit contact surface to be carried out grinding process, then with sqtructural adhesive built-in sealing steel plate water stopper is placed on the deformation joint and with crab-bolt and is fixed, check afterwards the steel plate both sides, tamp the slit with modified epoxy clay or slurries.
The invention has the beneficial effects as follows: the present invention adopts the high-pressure slip-casting form of construction work to inject sealing agent in deformation joint lower floor, adopt the low-pressure grouting form of construction work to pour into non-solidifying substance on the deformation joint upper strata, detachable or built-in hermetic seal band are installed at deformation joint sealing place, can prevent effectively that seepage from appearring in deformation joint, and the antiseep time is longer, can not be subject to the impact of environment, stability better has popularizing value.
Description of drawings
Fig. 1 is the detachable waterstop leakage preventing structure that concrete structure deformation joint of the present invention adopts the chemical anchor bolts anchoring;
Fig. 2 is the local enlarged diagram of A among Fig. 1;
Fig. 3 is that concrete structure deformation joint of the present invention adopts adhesive to solidify to form the detachable waterstop leakage preventing structure of anchored end anchoring;
Fig. 4 is the middle-set-type waterstop leakage preventing structure that concrete structure deformation joint of the present invention adopts the chemical anchor bolts anchoring;
Fig. 5 is that concrete structure deformation joint of the present invention adopts adhesive to solidify to form the middle-set-type waterstop leakage preventing structure of anchored end anchoring;
The mark of each parts is as follows in the accompanying drawing: 1, rubber strip, 2, built-in rubber fastening band, 3, metal cover board, 4, pad, 5, nut, 6, crab-bolt, 7, back side low-pressure injection pipe, 8, non-solidifying substance, 9, sealing agent, 10, upstream face high pressure pouring pipe, the 11, first waterstop.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
The embodiment of the invention comprises:
A kind of percolator of concrete structure deformation joint, comprise the deformation joint body, described deformation joint body middle part is provided with the first waterstop 11, described the first waterstop 11 is divided into the upper and lower with the deformation joint body, described lower floor is filled with sealing agent 9, described upper strata is filled with non-solidifying substance 8, and top, described upper strata is provided with the second waterstop, and described the second waterstop is fixed on the sealing both sides of deformation joint.
Described the second waterstop is built-in rubber fastening band 2, and built-in rubber fastening band 2 both sides are adhesive with respectively rubber strip 1, and rubber strip 1 top covers layer of metal cover plate 3, and described built-in rubber fastening band 2 is fixed by crab-bolt 6 or adhesive; Described the second waterstop also can be built-in sealing steel plate water stopper, and described built-in sealing steel plate water stopper is directly fixing by crab-bolt 6 or adhesive.Described the second waterstop is to deformation joint body sunken inside, so that the second sealing with a deformation range, can prevent from making the second waterstop generation seepage owing to injecting too much non-solidifying substance 8.
A kind of method for treating seepage of concrete structure deformation joint in turn includes the following steps:
Step 1, the inner antiseepage of deformation joint are processed:
1, remove construction obstacle, to remove the construction that deformation joint surface cap, cleaning fracture faces decorative layer and other leak stopping units lost efficacy residual, the materials such as cleaning seam inner foam, deformation joint surface and internal cleaning is clean, observe concrete seepage place, indicate seepage place;
2, along deformation joint two side perforatings, the aperture is 12-16mm, holes to the 1/2-2/3 degree of depth of groundwork thickness, pitch-row is between the 150mm-300mm, can suitably adjust the punching spacing according to the pulp situation at scene, eyelet is arranged along the fracture strike dislocation, can be done suitable adjustment according to the field operation condition;
3, the first waterstop 11 is installed, is screwed the high pressure plug on the first waterstop 11, deformation joint is divided into the upper and lower;
4, imbed upstream face high pressure pouring pipe 10 in the deformation joint both sides, described upstream face high pressure pouring pipe 10 is connected with deformation joint lower floor, adopt the method for high pressure leaking stoppage to utilize aqueous polyurethane sealing agent 9 high pressure leaking stoppage machine pressure injection to enter deformation joint lower floor, and guarantee that pressure injection is closely knit;
5, observed 3-5 days, to the position of part still seepage, carry out the secondary high-pressure leak stopping, until anhydrous oozing out in the seam;
6, in case of as because of the deformation joint structure reason or repeatedly adopt the construction of the operations such as boring method construction causes can't punching in the deformation joint both sides, then adopt following method to construct:
1) the deformation joint inwall is embedded back lining materials, pre-buried upstream face high pressure pouring pipe 10 of while, upstream face high pressure pouring pipe 10 gos deep into the deformation joint lower interior part as far as possible, and upstream face high pressure pouring pipe 10 interval 0.5-1.5m arrange one;
2) adopt special-purpose perfusion equipment that deformation joint lower floor is poured into, pouring material is water-based or oiliness polyurethane leak-stopping agent 9, after slurries flow out, seal immediately upstream face high pressure pouring pipe 10 mouths of pipe, observed 3-5 days, part still seepage place is poured into again.
1, open inclined hole at distortion tape edge spacing 1.5-2 rice, inclined hole is the setting of 30-60 degree, and the aperture is 18-30mm, and it is inner that described inclined hole passes into the deformation joint upper strata, pre-buried back side low-pressure injection pipe 7 in inclined hole;
2, adopt the modified epoxy mudding to close back side low-pressure injection pipe 7 mouths of pipe, and guarantee that the pipe outside is closely knit, set up back side low-pressure injection pipe 7 in partial structurtes complexity or corner portions, in case individual tubes is blocked when follow-up construction;
1, as requested unwrapping wire punching is implanted chemical anchor bolts 6 with chemical adhesive;
2, the preferred 300mm of chemical anchor bolts 6 spacings can suitably encrypt at corner.
Step 4, the built-in rubber fastening band 2 of installation or built-in sealing steel plate water stopper:
1, base treatment: built-in hermetic seal band 2 or built-in sealing steel plate water stopper are installed are now cleared up the also repair distortion seam both sides interior basic unit of each 100mm scope, and should accomplish that basic unit is firm, closely knit, smooth; Basic unit and the repairing formation degree of depth of can inwardly polishing in case of necessity is not more than the 10mm groove;
2, built-in rubber fastening band 2 is installed:
1) anchored end adopts chemical anchor bolts 6 anchorings (such as Fig. 1, shown in Figure 3):
(1) at butyl rubber sealant adhesive tape, built-in rubber fastening band 2 and metal cover board 3 and the punching of chemical anchor bolts 6 correspondence positions, the large 2-3mm of aperture ratio chemical anchor bolts 6 diameters;
(2) directly built-in rubber fastening band 2 is pasted on the deformation joint both sides with the butyl rubber sealant adhesive tape, covers pad 4 and nut 5, and compress with chemical anchor bolts 6.
2) anchored end adopts the anchored end anchoring (such as Fig. 2, shown in Figure 4) that adhesive solidification forms
(1) adopt the matching gel stick to solidify to form anchored end;
(2) directly at the built-in rubber fastening band 2 of anchored end anchoring.
3, built-in sealing steel plate water stopper is installed:
1) built-in sealing steel plate water stopper is pasted the position and polish, expose wet look;
2) at built-in sealing steel plate water stopper and the punching of chemical anchor bolts 6 correspondence positions, the large 2-4mm of aperture ratio chemical anchor bolts 6 diameters;
3) adopt the modified epoxy binding material to paste built-in sealing steel plate water stopper, and compress with chemical anchor bolts 6, guarantee that built-in sealing steel plate water stopper and concrete surface conjunction are closely knit, after the glue sclerosis, can carry out the construction of lower step.
1, checks whether each back side low-pressure injection pipe 7 is unobstructed, repair as obstructed as far as possible;
2, non-solidifying substance 8 is carried out the heating of nothing fire, guarantee its trickling performance;
3, adopt special equipment that non-solidifying substance 8 is poured in the deformation joint along back side low-pressure injection pipe 7, perfusion is sequentially for from low to high, sealing back side low-pressure injection pipe 7 when having material to overflow in the back side low-pressure injection pipe 7, until all have material to overflow in all back side low-pressure injection pipes 7, wait for 1-2 hour, in the highest back side low-pressure injection pipe 7, again pour into, guarantee that material is closely knit in the seam, thereby finish the seepage treatment of deformation joint.
The present invention adopts the high-pressure slip-casting form of construction work to inject sealing agent 9 in deformation joint lower floor, adopt the low-pressure grouting form of construction work to pour into non-solidifying substance 8 on the deformation joint upper strata, detachable or built-in hermetic seal band are installed at deformation joint sealing place, can prevent effectively that seepage from appearring in deformation joint, and the antiseep time is longer, can not be subject to the impact of environment, stability better has popularizing value.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes manual of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the percolator of a concrete structure deformation joint, it is characterized in that: comprise the deformation joint body, described deformation joint body middle part is provided with the first waterstop (11), described the first waterstop (11) is divided into the upper and lower with the deformation joint body, described lower floor is filled with sealing agent (9), described upper strata is filled with non-solidifying substance (8), and top, described upper strata is provided with the second waterstop, and described the second waterstop is fixed on the sealing both sides of deformation joint.
2. the percolator of concrete structure deformation joint according to claim 1, it is characterized in that: the sealing of described deformation joint body is provided with groove, and described the second waterstop is arranged in the groove, and the second waterstop is to deformation joint body sunken inside.
3. the percolator of concrete structure deformation joint according to claim 1, it is characterized in that: described the second waterstop is built-in rubber fastening band (2), built-in rubber fastening band (2) both sides are adhesive with respectively rubber strip (1), rubber strip (1) top covers layer of metal cover plate (3), and described rubber fastening band (2) is fixed by crab-bolt (6) or adhesive.
4. the percolator of concrete structure deformation joint according to claim 1, it is characterized in that: described the second waterstop is built-in sealing steel plate water stopper, described built-in sealing steel plate water stopper is directly fixing by crab-bolt (6) or adhesive.
5. the percolator of concrete structure deformation joint according to claim 1, it is characterized in that: described deformation joint body both sides evenly offer respectively some inclined holes, be provided with intrusion pipe in the described inclined hole, described intrusion pipe comprises upstream face high pressure pouring pipe (10) and back side low-pressure injection pipe (7), described upstream face high pressure pouring pipe (10) is connected with deformation joint lower floor, described back side low-pressure injection pipe (7) is connected with the deformation joint upper strata, and described intrusion pipe is the setting of 30-60 degree.
6. the percolator of concrete structure deformation joint according to claim 1, it is characterized in that: described the first waterstop (11) comprises Water slop injector and high pressure plug.
7. the method for treating seepage of a concrete structure deformation joint is characterized in that: in turn include the following steps:
One, remove the seepage place foreign material, along deformation joint two side perforatings, hole to the 1/2-2/3 degree of depth of groundwork thickness, the aperture is 12-16mm, pitch-row is between the 150mm-300mm, the first waterstop (11) is installed, and screw high pressure plug on the first waterstop (11), deformation joint is divided into the upper and lower, imbed upstream face high pressure pouring pipe (10) in the deformation joint both sides, described upstream face high pressure pouring pipe (10) is connected with deformation joint lower floor, then adopts the high-pressure slip-casting mode to deformation joint lower floor pressure injection sealing agent (9), until anhydrous oozing out in the seam;
Two, offer some inclined holes in the deformation joint both sides, inclined hole is the setting of 30-60 degree, the aperture is 18-30mm, pre-buried back side low-pressure injection pipe (7) in inclined hole, described back side low-pressure injection pipe (7) passes into the deformation joint upper strata, then with epoxy mortar sealing back side low-pressure injection pipe (7);
Three, in the punching of deformation joint both sides unwrapping wire, implant crab-bolt (6) with anchoring adhesive in the hole, crab-bolt (6) spacing is 200-400mm, suitably encrypts at corner;
Four, cleaning and repair distortion seam both sides basic unit, polish downwards basic unit and repairing form the groove that the degree of depth is not more than 10mm, built-in rubber fastening band (2) or built-in sealing steel plate water stopper are installed, and are fixed with crab-bolt (6) or adhesive.
Five, use grouting machine by back side low-pressure injection pipe (7) non-solidifying substance (8) to be poured on the deformation joint upper strata, after having filled non-solidifying substance (8) in the deformation joint, use steel wire that back side low-pressure injection pipe (7) is tightened, finish the seepage treatment of deformation joint.
8. the method for treating seepage of concrete structure deformation joint according to claim 7, it is characterized in that: in the step 4, built-in rubber fastening band (2) is installed to be comprised the steps: to adopt first the special (purpose) rubber adhesive respectively to paste the thick rubber strip (1) of 2mm-3mm one in the deformation joint both sides, built-in rubber fastening band (2) is placed on the groove of deformation joint sealing, the bonding width of built-in rubber fastening band (2) in the basic unit of deformation joint both sides respectively is not less than 100mm, place again one rubber strip (1) in built-in rubber fastening band (2) both sides, then on rubber strip (1), respectively cover layer of metal cover plate (3), and fixing with crab-bolt (6).
9. the method for treating seepage of concrete structure deformation joint according to claim 8 is characterized in that: the thick butyl rubber waterproof sealing adhesive tape of described rubber strip (1) employing 2mm-3mm.
10. the method for treating seepage of concrete structure deformation joint according to claim 7, it is characterized in that: in the step 4, built-in sealing steel plate water stopper is installed to be comprised the steps: first built-in sealing steel plate water stopper and deformation joint grooves on two sides contact surface to be carried out grinding process, then with sqtructural adhesive built-in sealing steel plate water stopper is placed on the deformation joint and also is fixed with crab-bolt (6), check afterwards the steel plate both sides, tamp the slit with modified epoxy clay or slurries.
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| CN201110282736.9A CN103015538B (en) | 2011-09-22 | 2011-09-22 | The percolator of a kind of concrete structure deformation joint and method for treating seepage |
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