CN103015538B - The percolator of a kind of concrete structure deformation joint and method for treating seepage - Google Patents
The percolator of a kind of concrete structure deformation joint and method for treating seepage Download PDFInfo
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- CN103015538B CN103015538B CN201110282736.9A CN201110282736A CN103015538B CN 103015538 B CN103015538 B CN 103015538B CN 201110282736 A CN201110282736 A CN 201110282736A CN 103015538 B CN103015538 B CN 103015538B
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Abstract
The invention discloses the percolator of a kind of concrete structure deformation joint, including movement joint body, it is provided with the first waterstop in the middle part of described movement joint body, movement joint body is divided into the upper and lower by described first waterstop, described lower floor is filled with sealing agent, and described upper strata is filled with uncured material, and described upper strata is provided above the second waterstop, described second waterstop is fixed on the sealing both sides of movement joint, and the second waterstop is to movement joint body sunken inside.The present invention uses high-pressure slip-casting form of construction work to inject sealing agent in movement joint lower floor, low-pressure grouting form of construction work is used to irrigate uncured material on movement joint upper strata, dismountable type or built-in hermetic seal band are installed at movement joint sealing, movement joint can be effectively prevented seepage occurs, and the antiseep time is longer, will not be affected by environment, stability is preferable, has popularizing value.
Description
Technical field
The present invention relates to building field, particularly relate to percolator and the method for treating seepage of a kind of concrete structure deformation joint.
Background technology
Along with developing rapidly of society, more and more new big scale of constructions, the building of large scale are constantly built, owing to building is the hugest, impact in view of factors such as flexible, sedimentation and antidetonations, the way of prearrangement of deformation amount seam is used during design, the problem on deformation produced because of factors such as the temperature difference, sedimentation and antidetonations with solution, factor yet with aspects such as technology, design, material, construction and costs affects, the waterproof of movement joint position is to become a weaker link, seepage, almost ten seam nine leakages easily occur.Movement joint oozes, leaks, cause seam both sides mouldy because of infiltration, pollution blackout of leaking, affect the attractive in appearance of building and use function, even more serious will have influence on durability and the safety of structure, one of the seepage of movement joint key factor becoming construction quality, therefore for guaranteeing to make structural safety and normal use, it is necessary to conscientiously administer leakage problems.Due to the leakage cause that it is complicated and changeable, the seepage of movement joint has become the focus paid close attention in the industry, administers the most thorny.
The seepage main cause of movement joint has: 1, to the waterstop in movement joint before concrete placing, does not take feasible fixation or fixing means improper；2, at waterstop overlapping splice, bonding is bad, it is impossible to form the water proof ring closed；3, the most tight due to concrete vibrating, at waterstop, leave space, become the passage of percolating water；4, uneven because of settlement of foundation, building is deformed, and makes waterstop overstep the extreme limit by drawing crack, causes percolating water.The concretion body strength formed due to oil soluble polyurethane is big, anti-permeability is good, but it is elastic little, at retention of excessive fluid, plugging effect is poor, typically all injects aqueous polyurethane, allows aqueous polyurethane react with water, expand, leakage area is blocked the effect reaching leak stopping, but the time one is long, still there will be Seepage.
The gel of soluble polyurethane forms induration after reacting with water in movement joint, and induration can absorb certain moisture swelling, and then produces pressure, blocks leakage passage.Be disadvantageous in that in the case of the long-term dehydration of the induration of water absorption and swelling, also can dehydration shrinkage, and the induration after shrinking again meet water can not be swelling or swelling ratio is not enough, then most likely result in losing waterproof effect and " multiple leakage ".
The typically many employings of administration way to concrete broken crack are holed at the avris of the faulted joint of concrete, bury Water slop injector, ejection for water plugging.This has certain stagnant water effect, but starts the most again to leak.If the side boring of the faulted joint at concrete, not blocking at the faulted joint of former concrete, serosity cannot propagate into movement joint depths.After serosity is injected into, there is water the lower section of serosity, and water is incompressible, and top movement joint is without constraint, and serosity is under the least pressure effect, and flowing to naturally, and has condensed top.It is pressure extruded in the case of unconfined above movement joint, is the most just identified as slip casting and terminates.Water below gap remains water, and top is only the gel of a strata urethane, after the polyurethane expander on top layer once dehydration drying shrinkage, starts again seepage.
Summary of the invention
The technical problem that present invention mainly solves is to provide percolator and the method for treating seepage of a kind of concrete structure deformation joint, has preferable anti-seepage effect, it is ensured that the reliability and stability of building.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide the percolator of a kind of concrete structure deformation joint, including movement joint body, it is provided with the first waterstop in the middle part of described movement joint body, movement joint body is divided into the upper and lower by described first waterstop, and described lower floor is filled with sealing agent, and described upper strata is filled with uncured material, described upper strata is provided above the second waterstop, and described second waterstop is fixed on the sealing both sides of movement joint.
In a preferred embodiment of the present invention, the sealing of described movement joint body is provided with groove, and described second waterstop is arranged in groove, and the second waterstop is to movement joint body sunken inside.
In a preferred embodiment of the present invention, described second waterstop is built-in rubber fastening band, built-in rubber fastening band both sides are adhesive with rubber strip respectively, cover layer of metal cover plate above rubber strip, and described built-in rubber fastening band is fixed by crab-bolt or adhesive.
In a preferred embodiment of the present invention, described second waterstop is steel plate water stopper, and described built-in sealing steel plate water stopper is directly fixed by crab-bolt or adhesive.
In a preferred embodiment of the present invention, described movement joint body both sides the most uniformly offer some inclined holes, it is provided with intrusion pipe in described inclined hole, described intrusion pipe includes upstream face high pressure pouring pipe and back side low-pressure injection pipe, described upstream face high pressure pouring pipe is connected with movement joint lower floor, described back side low-pressure injection pipe is connected with movement joint upper strata, and described intrusion pipe is that 30-60 degree is arranged.
In a preferred embodiment of the present invention, described first waterstop includes high-pressure drain plug.
In a preferred embodiment of the present invention, the method for treating seepage of the percolator of concrete structure deformation joint, in turn include the following steps:
One, seepage place foreign material are removed, along movement joint two side perforating, hole to the 1/2-2/3 degree of depth of groundwork thickness, aperture is 12-16mm, pitch-row is between 150mm-300mm, first waterstop is installed, and screw the high-pressure drain plug on the first waterstop, movement joint is divided into the upper and lower, upstream face high pressure pouring pipe is imbedded in movement joint both sides, described upstream face high pressure pouring pipe is connected with movement joint lower floor, then uses high-pressure slip-casting mode to movement joint lower floor pressure injection sealing agent, oozes out until anhydrous in seam；
Two, offering some inclined holes in movement joint both sides, inclined hole is that 30-60 degree is arranged, and aperture is 18-30mm, pre-buried back side low-pressure injection pipe in inclined hole, and described back side low-pressure injection pipe is passed through movement joint upper strata, then closes back side low-pressure injection pipe with epoxy mortar；
Three, punching at movement joint both sides unwrapping wire, implant crab-bolt with anchoring adhesive in hole, crab-bolt spacing is 200-400mm, suitably encrypts at corner；
Four, clearing up and repair distortion stitches both sides basic unit, the groove that the formation degree of depth is not more than 10mm is also repaired by the basic unit of polishing downwards, installs built-in rubber fastening band or built-in sealing steel plate water stopper, and fixes with crab-bolt or adhesive；
Five, use grouting machine, by back side low-pressure injection pipe, movement joint upper strata is irrigated uncured material, after having filled uncured material in movement joint, use steel wire to be tightened by back side low-pressure injection pipe, complete the seepage treatment of movement joint.
In a preferred embodiment of the present invention, in step 4, built-in rubber fastening band is installed comprise the steps: first to use special (purpose) rubber adhesive respectively to paste one rubber strip thick for 2mm-3mm in movement joint both sides, built-in rubber fastening band is placed on movement joint, built-in rubber fastening band bonding width in the basic unit of movement joint both sides is respectively not less than 100mm, place one rubber strip in built-in rubber fastening band both sides again, on rubber strip, then respectively cover layer of metal cover plate and fix by crab-bolt.
In a preferred embodiment of the present invention, described rubber strip uses the butyl rubber waterproof sealing adhesive tape that 2mm-3mm is thick.
In a preferred embodiment of the present invention, in step 4, built-in sealing steel plate water stopper is installed comprise the steps: first built-in sealing steel plate water stopper and movement 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 movement joint and is fixed by crab-bolt, check steel plate both sides afterwards, tamp gap with modified epoxy clay or modified epoxy serosity.
The invention has the beneficial effects as follows: the present invention uses high-pressure slip-casting form of construction work to inject sealing agent in movement joint lower floor, low-pressure grouting form of construction work is used to irrigate uncured material on movement joint upper strata, dismountable type or built-in hermetic seal band are installed at movement joint sealing, movement joint can be effectively prevented seepage occurs, and the antiseep time is longer, will not be affected by environment, stability is preferable, has popularizing value.
Accompanying drawing explanation
Fig. 1 is the waterstop leakage preventing structure that concrete structure deformation joint of the present invention uses chemical anchor bolts anchoring；
Fig. 2 is the close-up schematic view of A in Fig. 1；
Fig. 3 is that concrete structure deformation joint of the present invention uses adhesive to solidify to form the waterstop leakage preventing structure of anchored end anchoring；
Fig. 4 is another waterstop leakage preventing structure that concrete structure deformation joint of the present invention uses chemical anchor bolts anchoring；
Fig. 5 is that concrete structure deformation joint of the present invention uses adhesive to solidify to form another waterstop leakage preventing structure of anchored end anchoring；
In accompanying drawing, the labelling of each parts is as follows: 1, rubber strip, and 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, uncured material, 9, sealing agent, 10, upstream face high pressure pouring pipe, the 11, first waterstop.
Detailed description of the invention
Below in conjunction with the accompanying drawings presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
The embodiment of the present invention includes:
A kind of percolator of concrete structure deformation joint, including movement joint body, the first waterstop 11 it is provided with in the middle part of described movement joint body, movement joint body is divided into the upper and lower by described first waterstop 11, described lower floor is filled with sealing agent 9, described upper strata is filled with uncured material 8, and described upper strata is provided above the second waterstop, and described second waterstop is fixed on the sealing both sides of movement joint.
Described second waterstop is built-in rubber fastening band 2, and built-in rubber fastening band 2 both sides are adhesive with rubber strip 1 respectively, covers layer of metal cover plate 3 above rubber strip 1, and described built-in rubber fastening band 2 is fixed by crab-bolt 6 or adhesive；Described second waterstop is alternatively built-in sealing steel plate water stopper, and described built-in sealing steel plate water stopper is directly fixed by crab-bolt 6 or adhesive.Described second waterstop is to movement joint body sunken inside so that the second sealing, with a deformation range, is possible to prevent to make the second waterstop generation seepage owing to injecting too much uncured material 8.
The method for treating seepage of a kind of concrete structure deformation joint, in turn includes the following steps:
The internal Anti-seeping technology of step one, movement joint:
1, remove construction obstacle, remove the construction residual that movement joint surface cap, cleaning fracture faces decorative layer and other leak stopping units had lost efficacy, the materials such as the cleaning interior foam of seam, by clean to movement joint surface and internal cleaning, observe concrete seepage place, indicate seepage place；
2, along movement joint two side perforating, aperture is 12-16mm, holes to the 1/2-2/3 degree of depth of groundwork thickness, pitch-row is between 150mm-300mm, can suitably adjust punching spacing according to on-the-spot pulp situation, eyelet is arranged along fracture strike dislocation, can make the appropriate adjustments according to field operation condition；
3, first waterstop 11 is installed, screws the high-pressure drain plug on the first waterstop 11, movement joint is divided into the upper and lower；
4, imbedding upstream face high pressure pouring pipe 10 in movement joint both sides, described upstream face high pressure pouring pipe 10 is connected with movement joint lower floor, uses the method for high pressure leaking stoppage to utilize high pressure leaking stoppage machine pressure injection to enter movement joint lower floor aqueous polyurethane sealing agent 9, and ensures that pressure injection is closely knit；
5, observe 3-5 days, the position to local still seepage, carry out secondary high-pressure leak stopping, ooze out until anhydrous in seam；
6, in case of such as because of deformation joint structure reason or be employed many times boring method construction cause movement joint both sides to cannot be carried out the construction of the operations such as punching, then adopt and construct with the following method:
1) movement joint inwall being embedded back lining materials, the most pre-buried upstream face high pressure pouring pipe 10, upstream face high pressure pouring pipe 10 gos deep into movement joint lower interior part as far as possible, and upstream face high pressure pouring pipe 10 is spaced 0.5-1.5m and arranges one；
2) using special perfusion equipment to be irrigated movement joint lower floor, pouring material is aqueous or oiliness polyurethane leak-stopping agent 9, closes upstream face high pressure pouring pipe 10 mouth of pipe immediately, observe 3-5 days after serosity flows out, and again irrigates local still seepage place.
Step 2, back side low-pressure injection pipe 7 are buried underground:
1, opening inclined hole at deformation tape edge spacing 1.5-2 rice, inclined hole is that 30-60 degree is arranged, and aperture is 18-30mm, and described inclined hole is passed through inside movement joint upper strata, pre-buried back side low-pressure injection pipe 7 in inclined hole；
2, use modified epoxy mudding to close back side low-pressure injection pipe 7 mouth of pipe, and ensure outside pipe closely knit, set up back side low-pressure injection pipe 7, in case individual tubes is blocked when subsequent construction in partial structurtes complexity or corner portions；
Step 3, chemical anchor bolts 6 are installed:
1, unwrapping wire punching as requested, implants chemical anchor bolts 6 with chemical adhesive；
2, the preferred 300mm of chemical anchor bolts 6 spacing, can suitably encrypt at corner.
Step 4, built-in rubber fastening band 2 or built-in sealing steel plate water stopper are installed:
1, base treatment: install built-in hermetic seal band 2 or built-in sealing steel plate water stopper should now be cleared up and basic unit in the range of the repair distortion seam each 100mm in both sides, and should accomplish that basic unit is firm, closely knit, smooth；Can inwardly polish if desired basic unit and repair formation the degree of depth be not more than 10mm groove；
2, built-in rubber fastening band 2 is installed:
1) anchored end uses chemical anchor bolts 6 to anchor (as shown in Figure 1, Figure 3):
(1) punch with chemical anchor bolts 6 correspondence position at butyl rubber sealant adhesive tape, built-in rubber fastening band 2 and metal cover board 3, the big 2-3mm of aperture ratio chemical anchor bolts 6 diameter；
(2) directly built-in rubber fastening band 2 is pasted on movement joint both sides with butyl rubber sealant adhesive tape, covers pad 4 and nut 5, and compress with chemical anchor bolts 6.
2) anchored end uses anchored end anchoring (as shown in Figure 2, Figure 4 shows) that adhesive solidify to form
(1) matching gel stick is used to solidify to form anchored end；
(2) directly built-in rubber fastening band 2 is anchored in anchored end.
3, built-in sealing steel plate water stopper is installed:
1) built-in sealing steel plate water stopper is pasted position to polish, expose wet look；
2) punch with chemical anchor bolts 6 correspondence position at built-in sealing steel plate water stopper, the big 2-4mm of aperture ratio chemical anchor bolts 6 diameter；
3) use modified epoxy binding material to paste built-in sealing steel plate water stopper, and compress with chemical anchor bolts 6, it is ensured that built-in sealing steel plate water stopper is combined closely knit with concrete surface, lower step construction can be carried out after glue hardens.
Step 5, irrigate uncured material 8:
1, check that each back side low-pressure injection pipe 7 is the most unobstructed, repair as obstructed as far as possible；
2, uncured material 8 is carried out without fire heating, it is ensured that its performance of trickling；
3, special equipment is used to pour in movement joint by uncured material 8 along back side low-pressure injection pipe 7, pouring squence is from low to high, back side low-pressure injection pipe 7 is closed when back side low-pressure injection pipe 7 has material to overflow, until all back side low-pressure injection pipes 7 all have material to overflow, wait 1-2 hour, the highest back side low-pressure injection pipe 7 is irrigated again, it is ensured that in seam, material is closely knit, thus completes the seepage treatment of movement joint.
The present invention uses high-pressure slip-casting form of construction work to inject sealing agent 9 in movement joint lower floor, low-pressure grouting form of construction work is used to irrigate uncured material 8 on movement joint upper strata, dismountable type or built-in hermetic seal band are installed at movement joint sealing, movement joint can be effectively prevented seepage occurs, and the antiseep time is longer, will not be affected by environment, stability is preferable, has popularizing value.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention and accompanying drawing content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (8)
1. the percolator of a concrete structure deformation joint, it is characterized in that: include movement joint body, the first waterstop (11) it is provided with in the middle part of described movement joint body, movement joint body is divided into the upper and lower by described first waterstop (11), described lower floor is filled with sealing agent (9), described upper strata is filled with uncured material (8), and described upper strata is provided above the second waterstop, and described second waterstop is fixed on the sealing both sides of movement joint；The sealing of described movement joint body is provided with groove, and described second waterstop is arranged in groove, and the second waterstop is to movement joint body sunken inside.
The percolator of concrete structure deformation joint the most according to claim 1, it is characterized in that: described second waterstop is built-in rubber fastening band (2), built-in rubber fastening band (2) both sides are adhesive with rubber strip (1) respectively, 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.
The percolator of concrete structure deformation joint the most according to claim 1, it is characterised in that: described second waterstop is built-in sealing steel plate water stopper, and described built-in sealing steel plate water stopper is directly fixed by crab-bolt (6) or adhesive.
The percolator of concrete structure deformation joint the most according to claim 1, it is characterized in that: described movement joint body both sides the most uniformly offer some inclined holes, it is provided with intrusion pipe in described inclined hole, described intrusion pipe includes 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 movement joint lower floor, described back side low-pressure injection pipe (7) is connected with movement joint upper strata, and described intrusion pipe is that 30-60 degree is arranged.
5. use the method that seepage administered by the percolator of concrete structure deformation joint according to claim 1, it is characterised in that: in turn include the following steps:
One, seepage place foreign material are removed, along movement joint two side perforating, hole to the 1/2-2/3 degree of depth of groundwork thickness, aperture is 12-16mm, pitch-row is between 150mm-300mm, first waterstop (11) is installed, and screw the high-pressure drain plug on the first waterstop (11), movement joint is divided into the upper and lower, in movement joint both sides embedment upstream face high pressure pouring pipe (10), described upstream face high pressure pouring pipe (10) is connected with movement joint lower floor, then uses high-pressure slip-casting mode to movement joint lower floor pressure injection sealing agent (9), oozes out until anhydrous in seam；
Two, some inclined holes are offered in movement joint both sides, inclined hole is that 30-60 degree is arranged, and aperture is 18-30mm, pre-buried back side low-pressure injection pipe (7) in inclined hole, described back side low-pressure injection pipe (7) is passed through movement joint upper strata, then closes back side low-pressure injection pipe (7) with epoxy mortar；
Three, punching at movement joint both sides unwrapping wire, implant crab-bolt (6) with anchoring adhesive in hole, crab-bolt (6) spacing is 200-400mm, suitably encrypts at corner；
Four, clearing up and repair distortion stitches both sides basic unit, the groove that the formation degree of depth is not more than 10mm is also repaired by the basic unit of polishing downwards, installs built-in rubber fastening band (2) or built-in sealing steel plate water stopper, and fixes by crab-bolt (6) or adhesive；
Five, use grouting machine, by back side low-pressure injection pipe (7), movement joint upper strata is irrigated uncured material (8), after having filled uncured material (8) in movement joint, use steel wire to be tightened by back side low-pressure injection pipe (7), complete the seepage treatment of movement joint.
The method of improvement seepage the most according to claim 5, it is characterized in that: in step 4, built-in rubber fastening band (2) is installed comprise the steps: first to use special (purpose) rubber adhesive respectively to paste one rubber strip (1) thick for 2mm-3mm in movement joint both sides, built-in rubber fastening band (2) is placed on the groove of movement joint sealing, the built-in rubber fastening band (2) bonding width in the basic unit of movement joint both sides is respectively not less than 100mm, one rubber strip (1) is placed again in built-in rubber fastening band (2) both sides, then upper each covering layer of metal cover plate (3) of rubber strip (1), and fix by crab-bolt (6).
The method of improvement seepage the most according to claim 6, it is characterised in that: described rubber strip (1) uses the butyl rubber waterproof sealing adhesive tape that 2mm-3mm is thick.
The method of improvement seepage the most according to claim 5, it is characterized in that: in step 4, built-in sealing steel plate water stopper is installed comprise the steps: first built-in sealing steel plate water stopper and movement joint grooves on two sides contact surface to be carried out grinding process, then with sqtructural adhesive, built-in sealing steel plate water stopper it is placed on movement joint and is fixed by crab-bolt (6), check steel plate both sides afterwards, tamp gap with modified epoxy clay or modified epoxy serosity.
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| CN1873122A (en) * | 2005-06-01 | 2006-12-06 | 金玉山 | Deformation slot set |
| CN200975031Y (en) * | 2006-11-07 | 2007-11-14 | 四川新路桥机械有限公司 | Multiple sealing deformation joint apparatus |
| CN101705696B (en) * | 2009-08-19 | 2011-04-13 | 陶钧炳 | Basement deformation joint seepage prevention and treatment method |
| CN202248308U (en) * | 2011-09-22 | 2012-05-30 | 常州市鼎达建筑新技术有限公司 | Anti-seepage device for deformation joint of concrete structure |
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2011
- 2011-09-22 CN CN201110282736.9A patent/CN103015538B/en active Active
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Address after: 213015 Jiangsu province Changzhou City Zhonglou District Mushu Road No. 10 Patentee after: Jiangsu Dingda Building New Technology Co., Ltd. Patentee after: Changzhou Institute of building science group Limited by Share Ltd Address before: 213015 Jiangsu province Changzhou City Zhonglou District Mushu Road No. 10 Patentee before: Jiangsu Dingda Building New Technology Co., Ltd. Patentee before: Changzhou Architectural Research Institute Co., Ltd. |