CN205369329U - Reinforced structure is repaired on wind -powered electricity generation field fan pylon basis - Google Patents
Reinforced structure is repaired on wind -powered electricity generation field fan pylon basis Download PDFInfo
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- CN205369329U CN205369329U CN201521004712.7U CN201521004712U CN205369329U CN 205369329 U CN205369329 U CN 205369329U CN 201521004712 U CN201521004712 U CN 201521004712U CN 205369329 U CN205369329 U CN 205369329U
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Abstract
The utility model relates to a wind power generation technical field provides a reinforced structure is repaired on wind -powered electricity generation field fan pylon basis, including concrete and foundation ring, axial lead along the vertical setting of foundation ring, the top and the bottom of foundation ring are provided with top flange and bottom flange respectively, the bottom and the bottom flange of foundation ring are buried underground in the concrete, there is the gap between foundation ring and the concrete, the outside of foundation ring perhaps is provided with first grout hole, vertical setting is followed to first grout hole, the surface of first grout hole follow concrete extends to the bottom and the intercommunication of the gap bottom the foundation ring of foundation ring, the gap intussuseption is filled with an epoxy. The utility model discloses a reinforced structure is repaired on wind -powered electricity generation field fan pylon basis, the construction is easy, easy operation, an epoxy bonds into a whole to foundation ring and concrete, makes the stress transfer of basic steel loop reach good effect, and it is firm that the back basis is reinforced in the repair.
Description
Technical field
This utility model relates to technical field of wind power generation, in particular to a kind of wind electric field blower tower foundation repairing and reinforcing structure.
Background technology
Vertical wind driven generator mainly includes electrical generation components, pylon and basis；Basis includes reinforced concrete structure and foundation ring, foundation ring is usually steel loop, and the axial line of foundation ring is vertically arranged, and top and the bottom of foundation ring are provided with ring flange, the ring flange of foundation ring bottom is embedded in concrete, and the ring flange on the top of foundation ring is exposed outside concrete.The critical piece of pylon is column, column top fixed power generator (blade etc.), the bottom of column is provided with the ring flange corresponding with foundation ring top, when assembling wind-driven generator, column low side is connected by flange and foundation ring, and foundation ring is by being arranged around bar construction at foundation ring, then casting concrete, thus foundation ring is fixed on the ground, it is ensured that whole wind-driven generator stability operationally.
In the process of casting concrete, gap is would be likely to occur between reinforcing bar and concrete, and reinforcing bar and concrete, concrete and foundation ring belong to different materials, its adhesion strength can be deteriorated along with the use of wind-driven generator, and then causes the insecure accident even occurring wind-driven generator to collapse in basis.Generation for Accident prevention, it is necessary to periodic detection underlying strength, it has been found that underlying strength will carry out repairing and reinforcing process by the method that the later stage repairs after being deteriorated.
At present, it is generally adopted the method being welded with anchoring piece between armored concrete and foundation ring and processes, there is the problems such as difficulty of construction is big, cost is high, construction risk is big, consolidation effect is poor.In view of this, special proposition this utility model.
Utility model content
The purpose of this utility model is in that to provide a kind of wind electric field blower tower foundation repairing and reinforcing structure, and construction is easily, cost is low, stabilized structure after repairing and reinforcing.
This utility model is achieved in that
A kind of wind electric field blower tower foundation repairing and reinforcing structure, including concrete and foundation ring, the axial line of described foundation ring is vertically arranged, the top of described foundation ring and bottom are respectively arranged with top flange and flange in the bottom, the bottom of described foundation ring and flange in the bottom are embedded in concrete, gap is there is between described foundation ring and concrete, the outside of described foundation ring or inner side are provided with the first grout hole, described first grout hole is vertically arranged, described first grout hole from concrete surface extend to foundation ring bottom and with foundation ring bottom gap area, the first epoxy resin it is filled with in described gap.
In prior art, foundation ring is usually steel loop, and it is poor that designer of the present utility model has found that foundation ring is combined with reinforcement foundation concrete, causes that bond stress transmission effect is poor, and therefore foundation ring anchoring accident often occurs.After main manifestations has concreting, there is certain contraction in concrete, and then produce between concrete and foundation ring to shrink microscopic checks, in addition prior art is not good to the waterproof effect outside foundation ring, after fan operation a period of time, gap between foundation ring and concrete increases, and behind the gap that rainwater penetrates between basis steel loop and concrete, can further to the gap increased between foundation ring and concrete.
In prior art, it was found that generally adopt resin that gap is filled with behind gap, but the complex operation that existing method has, unstable after some repairing and reinforcings, again produce gap between foundation ring and concrete.
This structure of the present utility model, during construction, takes corning machine and drills down to the first grout hole from concrete end face.First epoxy resin can become an entirety foundation ring with concrete binding, and has excellent toughness and impact resistance, makes the Stress Transfer of foundation ring reach good effect, it is ensured that the safe operation of wind power generating set.
As preferably, described first grout hole is arranged on the outside of foundation ring, the inner side of described foundation ring is provided with multiple second grout hole, and described second grout hole is vertically arranged, described second grout hole from concrete surface extend to foundation ring bottom and with foundation ring bottom gap area.
Second grout hole is also adopt corning machine to drill down to from concrete end face.If the gap between foundation ring and concrete is relatively larger, the first epoxy resin easily enters into gap, inner side from gap, outside, then only drill through the first grout hole outside foundation ring just.If the gap between foundation ring and concrete is smaller, the first epoxy resin is not easy to enter into gap, inner side from gap, outside, then preferably while arrange the second grout hole and the first grout hole, so easily make gap adequately fill up the first epoxy resin.
As preferably, gap is positioned at the opening in the outside of foundation ring and is provided with the multiple first row air valves with gap area, gap is positioned at the opening of the inner side of foundation ring and is provided with the multiple second row air valves with gap area, and other of gap opening place are positioned at the encapsulant being provided with the opening for blocking gap.
Encapsulant can be epoxy resin can also be other mending mortars, only stay several air bleeding valve at gap opening place, add the difficulty that the first epoxy resin is discharged from gap opening, and then can there is certain pressure in gap during grouting, make the first epoxy resin be fully infiltrated in the small gap in gap, make final structure more firm.Described multiple refer at least two.
As preferably, the plurality of second grout hole and multiple first grout hole are all uniformly arranged along the circumference of foundation ring, and described second grout hole and the first grout hole are arranged along the circumferential misalignment of foundation ring.
This preferred version can make the second epoxy resin be substantially filled to each position in gap further, second grout hole and the first grout hole are arranged along the circumferential misalignment of foundation ring, it is avoid the largest interval between the second grout hole and the first grout hole excessive on the one hand, is avoid bottom gap, producing convection current when being in the milk to the second grout hole and the first grout hole on the other hand simultaneously.
As preferably, the quantity of described first row air valve and the first grout hole is identical, and first row air valve and the first grout hole are in the radially coincidence of foundation ring；The quantity of described second row air valve and the second grout hole is identical, and second row air valve and the second grout hole are in the radially coincidence of foundation ring.
This preferred version can make the second epoxy resin be substantially filled to each position in gap further, also further increases grouting efficiency.Such as, in a preferred approach, the second grout hole is specifically nearest with the second row air valve being positioned at foundation ring opposite side, and the first epoxy resin easily passes through the bottom stream inner side to foundation ring of foundation ring from the outside of foundation ring.
As preferably, the quantity of described second grout hole, the first grout hole, first row air valve and second row air valve is 4～8.
As preferably, described second grout hole, the first grout hole, first row air valve and second row air valve are four；Along the circumferential misalignment 45 ° of foundation ring between the second adjacent grout hole and the first grout hole.
In this preferred version, ensureing that grouting effect is good, not easily the gap after repairing produces, under the premise in space, to have employed less grout hole, it is to avoid concrete causes too much destruction, it is to avoid affect concrete structural stability.
As preferably, the opening in described gap is provided with transparent waterproof layer.
Waterproof layer is transparent, it is simple to the situation at direct vision port place, if the gap after repairing again goes wrong and can be found in time.
As preferably, described waterproof layer includes the second epoxy resin layer and fiberglass cloth.
In this preferred version, adopting the second epoxy resin and glass fabric to be combined as waterproof layer, the toughness that the existing certain intensity of waterproof layer is higher again, is pellucidity after the second epoxy resin cure.
As preferably, described waterproof layer is the second epoxy resin layer, fiberglass cloth, the second epoxy resin layer, fiberglass cloth and the second epoxy resin layer from the bottom to top successively.
As preferably, the lateral wall of described foundation ring arranges at least one of which waterproof baffle ring, and described waterproof baffle ring is positioned at the top of waterproof layer and transversely arranges, and described waterproof baffle ring projected area in the horizontal plane is more than waterproof layer.
Waterproof baffle ring prevents extraneous rainwater from penetrating in the gap after repairing further, and waterproof baffle ring is similar to the brim of a hat, and waterproof baffle ring can cover waterproof layer as waterproof the first line of defence, reduces the rainwater erosion to waterproof layer.
The beneficial effect that this utility model realizes:
(1) easy construction, compression air and hot blast is adopted to remove the water in gap, gap dries thoroughly, being firmly combined with of first epoxy resin and concrete and foundation ring, gap place secondary is less likely to occur and destroys, also the order of injecting compressed air is optimized further, first injects from opposite side again from the side injecting compressed air of foundation ring, it is easy to guarantee that the water at each position in gap is removed clean；
(2) gap opening is enclosed, only stay several air bleeding valve at gap opening place, increase the difficulty that the first epoxy resin is discharged from gap opening, and then can there is certain pressure in gap during grouting, make the first epoxy resin be fully infiltrated in the small gap in gap.
(3) gap opening place is provided with transparent waterproof layer, it is strengthen waterproof effect on the one hand, rainwater is avoided to penetrate into the gap after repairing, it is able on the other hand pass through waterproof layer direct vision port, if the gap after repairing again goes wrong and can be found in time, and this transparent waterproof layer is also very special, adopts the second epoxy resin and glass fabric to be combined as waterproof layer, the toughness that the existing certain intensity of waterproof layer is higher again.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below.
Fig. 1 is the schematic diagram before being not provided with waterproof layer of a kind of wind electric field blower tower foundation repairing and reinforcing structure in embodiment；
Fig. 2 is the a-quadrant partial enlarged drawing of Fig. 1；
Fig. 3 is the distribution schematic diagram of the first row air valve in Fig. 2, second row air valve, the second grout hole and the first grout hole；
Fig. 4 is the schematic diagram after arranging waterproof layer of a kind of wind electric field blower tower foundation repairing and reinforcing structure in embodiment；
Fig. 5 is the B region partial enlarged drawing of Fig. 4；
Fig. 6 is the structural representation of waterproof layer；
Fig. 7 is the schematic diagram after arranging waterproof baffle ring in Fig. 5；
Fig. 8 is the schematic diagram before being not provided with waterproof layer of a kind of wind electric field blower tower foundation repairing and reinforcing structure in embodiment；
Fig. 9 is the C region partial enlarged drawing of Fig. 8；
Figure 10 is the distribution schematic diagram of the first row air valve in Fig. 9, second row air valve and the first grout hole；
Figure 11 is the schematic diagram arranging eight the first grout holes and four the second grout holes in embodiment；
Figure 12 is the schematic diagram arranging eight the first grout holes and eight the second grout holes in embodiment.
The accompanying drawing of Fig. 1～Figure 12 illustrates:
Concrete 101；Foundation ring 102；Gap 103；Flange in the bottom 104；First row air valve 105；Second row air valve 106；First grout hole 107；Second grout hole 108；Waterproof layer 109；Second epoxy resin 110；Glass fabric 111；Waterproof baffle ring 112.
Detailed description of the invention
Below in conjunction with embodiment, embodiment of the present utility model is described in detail, it will be appreciated by those skilled in the art that the following example is merely to illustrate this utility model, and is not construed as limiting scope of the present utility model.Unreceipted actual conditions person in embodiment, conventionally the condition of condition or manufacturer's suggestion carries out.Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.
Referring to Fig. 1～Fig. 7, present embodiments provide a kind of wind electric field blower tower foundation repairing and reinforcing structure, construct according to the following steps:
(1) boring: adopt corning machine to drill down to multiple the first grout hole 107 and the second grout hole 108 vertically arranged from the end face of concrete 101, first grout hole 107 and the second grout hole 108 lay respectively at outside and the inner side of foundation ring 102, the bottom of the first grout hole 107 all extends to the bottom of foundation ring 102 and connects with the gap 103 bottom foundation ring 102 with the bottom of the second grout hole 108, the low side of foundation ring 102 is provided with flange in the bottom 104, flange in the bottom 104 all has extension inside and outside foundation ring 102, the low side of the first grout hole 107 extends downward the position of the outer ledge near flange in the bottom 104, the low side of the second grout hole 108 extends downward the position of the inside edge near flange in the bottom 104.The top of the first grout hole 107 is provided with the first grout pipe connected with the first grout hole 107, and the top of the second grout hole 108 is provided with the second grout pipe connected with the second grout hole 108, and the first grout pipe and the second grout pipe are provided with valve.
In order to make the first epoxy resin be substantially filled to each position in gap 103 further, multiple first grout holes 107 and multiple second grout hole 108 are all uniformly arranged along the circumference of foundation ring 102, and the first grout hole 107 and the second grout hole 108 are arranged along the circumferential misalignment of foundation ring 102.First grout hole 107 and the second grout hole 108 are arranged along the circumferential misalignment of foundation ring 102, it is avoid the largest interval between the first grout hole 107 and the second grout hole 108 excessive on the one hand, is avoid bottom gap 103, producing convection current when being in the milk to the first grout hole 107 and the second grout hole 108 on the other hand simultaneously.
In order to make the first epoxy resin be substantially filled to each position in gap 103 and further increase grouting efficiency further, first row air valve 105 is identical with the quantity of the second grout hole 108, and first row air valve 105 and the second grout hole 108 are in the radially coincidence of foundation ring 102；Second row air valve 106 is identical with the quantity of the first grout hole 107, and second row air valve 106 and the first grout hole 107 are in the radially coincidence of foundation ring 102.First grout hole 107 is concrete recently with the second row air valve 106 being positioned at foundation ring 102 opposite side, and the first epoxy resin easily passes through the bottom stream inner side to foundation ring 102 of foundation ring 102 from the outside of foundation ring 102.
In order to ensureing that grouting effect is good, not easily produce in the gap 103 after repairing, under the premise in space, to have employed less grout hole, first grout hole the 107, second grout hole 108, first row air valve 105 and second row air valve 106 are four；Along the circumferential misalignment 45 ° of foundation ring 102 between adjacent the first grout hole 107 and the second grout hole 108.The grout hole arranged also is avoided concrete 101 is caused too much destruction less, it is to avoid affect the structural stability of concrete 101.
The aperture of the first grout hole 107 and the second grout hole 108 is 30mm, naturally it is also possible to suitably increases or reduces, the aperture of the first grout hole 107 and the second grout hole 108.The distribution of the first grout hole 107 and the second grout hole 108 is as it is shown on figure 3, the distance of centre-to-centre spacing foundation ring 102 inward flange of the first grout hole 107 is 250mm, and the outer peripheral distance of centre-to-centre spacing foundation ring 102 of the second grout hole 108 is 250mm.
Before boring, tackle the reinforcing bar through foundation ring 102 preformed hole and carry out Primary Location, during to avoid and holing, block this reinforcing bar.For positive direction (in the face of foundation ring 102 inwall or outer wall direction), towards end flange, gradient is about 0.14 to bore path trend, and plane according to the reinforcement location estimated, can adjust the low-angle of about 8 ° in the positive direction to the left or to the right.
After having holed, removably connect grout pipe at pre-buried first grout pipe in top of the first grout hole 107 and the second grout hole 108 and the second grout pipe, the first grout pipe and the second grout pipe respectively.
In order to realize the first grout pipe and the first grout hole 107, the sealing of the second grout pipe and the second grout hole 108, aperture periphery at the first grout hole 107 and the second grout hole 108 smears binding agent, or water filling rubber tube is connected in the termination of the first grout pipe and the second grout pipe, again water filling rubber tube is inserted in the first grout hole 107 or the second grout hole 108, owing to the outer wall of water filling rubber tube is provided with the water-injecting cavity encircled a city by rubber sleeve, in water filling rubber tube, during water filling, water-injecting cavity becomes big, the rubber sleeve of water filling rubber tube is squeezed in the inwall of the first grout hole 107 or the second grout hole 108 and realizes sealing, aquaporin was had inside water filling rubber tube, there is the effect of common water pipe.Being arranged on the valve on the first grout pipe and the second grout pipe, it is ensured that when bearing 0.4MPa and being intrinsic pressure, the first grout pipe and the second grout pipe are destroyed, occur without race with borehole circumference, emit outside connecting tube.
(2) gap is cleaned: to the first grout hole 107 and/or the second grout hole 108 injection pressure water, the foreign material in gap 103 are carried out, and removes the sewage emerged from gap 103, and sewage stops injection pressure water after becoming clarification.
Halfway problem is cleaned in order to solve gap 103 further, first injecting water under high pressure to the first grout hole 107 does not have sewage to discharge to first row air valve 105, second row air valve 106 and the second grout hole 108 place, then injects water under high pressure to the second grout hole 108 until first row air valve 105, second row air valve 106 and the first grout hole 107 place do not have sewage to discharge.
Sometimes connective bad between the gap 103 of the both sides of foundation ring 102, it is carried out to the first grout hole 107 or the second grout hole 108 injection pressure water merely, all cannot thoroughly remove the foreign material in gap 103；Simultaneously also cannot thoroughly removing the foreign material in gap 103 to injection pressure water in the first grout hole 107 and the second grout hole 108, because easily producing convection current bottom gap 103 during simultaneously to the first grout hole 107 or the second grout hole 108 water filling, foreign material are difficult to discharge.
Initial fill pressure can adopt 0.1MPa (or adopting less pressure according to on-site actual situations), every grade of pressurization 0.05MPa.If before being forced into 0.4MPa, the mouth of pipe of gap, foundation ring 102 medial and lateral 103 and the second grout pipe all has more sewage to discharge, then show that foundation ring 102 connects in the gap 103 within concrete 101.Now, maintaining this pressure, until gap 103 and the mouth of pipe no longer effluent sewerage, then repressurization one-level (gross pressure is less than 0.4MPa), if gap 103 and the mouth of pipe are still discharged without sewage, then can stop pressurization, first time gap 103 flushing terminates；If there being sewage to continue to discharge, then maintain this pressure, till sewage is not then exhausted from.When second time gap 103 is rinsed, compression tube is connected with the mouth of pipe outside foundation ring 102, repeats gap 103 for the first time and rinse operation, till gap 103 and the mouth of pipe no longer have sewage to discharge.
(3) gap dries: gap 103 is gap opening near the position on the surface of concrete 101；After gap 103 has been cleaned, first to the first grout hole 107 injecting compressed air, and remove by the water of compression air extrusion to gap opening and the second grout hole 108 aperture, after the second anhydrous discharge in grout hole 108 aperture, to the second grout hole 108 injecting compressed air, until emerging without water body in gap 103；Or first to the second grout hole 108 injecting compressed air, and remove by the water of compression air extrusion to gap opening and the first grout hole 107 aperture in time, after the first anhydrous discharge in grout hole 107 aperture, to the first grout hole 107 injecting compressed air, until emerging without water body in gap 103.
After emerging without water body in gap 103, first blast the hot blast 30min of 50 DEG C simultaneously to the first grout hole 107 and the second grout hole 108, then blast natural wind 30min.
While injecting compressed air in the first grout hole 107 or the second grout hole 108, removing is by the water of compression air extrusion to gap opening and the second grout hole 108 aperture, it is to avoid again penetrated in gap 103 by the water of compression air extrusion to surface.Compression air additionally, due to the surface irregularity in gap 103 is complex-shaped, but also exist very much a lot to the internal small gap 103 extended of concrete 101, so can only remove most water in gap 103.In order to remove the water in gap 103 further, also in the first grout hole 107 or the second grout hole 108, blast hot blast, the heat of hot blast can make the water rapid evaporation in gap 103 become steam, steam discharges gap 103 together with hot blast, the time length blasting hot blast can be adjusted in conjunction with on-site actual situations, because hot blast relies primarily on heat and evaporates the water and then remove water, the not special requirement of the pressure of drum hot blast, near gap opening place, the minimum pressure of air blast can feel that gas is emerged with satisfied hands.
(4) grouting: the opening in gap is blocked, gap 103 is positioned at the opening in the outside of foundation ring 102 and is provided with the multiple first row air valves 105 connected with gap 103, and gap 103 is positioned at the opening of the inner side of foundation ring 102 and is provided with the multiple second row air valves 106 connected with gap 103；
Before grouting, first row air valve 105, second row air valve the 106, first grout hole 107 and the second grout hole 108 all remain on；
During grouting, first carry out diagonal angle filling and carry out supplementary irrigation again；Diagonal angle filling is directed to relative two the second grout hole or two relative the first grout holes are in the milk simultaneously；
Supplementary irrigation refers to first injects the first epoxy resin successively according to direction clockwise or counter-clockwise in the first grout hole 107, then according to the first epoxy resin is injected successively in direction in the second grout hole 108 clockwise or counter-clockwise；Or first in the second grout hole 108, inject the first epoxy resin successively according to direction clockwise or counter-clockwise, then according to the first epoxy resin is injected successively in direction in the first grout hole 107 clockwise or counter-clockwise；Or in the first grout hole 107 and the second grout hole 108, inject the first epoxy resin simultaneously, and be sequentially carried out according to direction clockwise or counter-clockwise；
What be in the milk simultaneously closes off the first row air valve 105 of grout, second row air valve the 106, first grout hole 107 and the second grout hole 108.
In step (4), the purpose that diagonal angle fills is to make foundation ring stress balance, it is prevented that foundation ring run-off the straight during grouting, makes foundation ring keep vertical with horizontal plane all the time, can cancel the equipment such as crane under normal circumstances and foundation ring is positioned.
The mode of supplementary irrigation has 3 kinds, first proceeds by supplementary irrigation from the first grout hole 107, first carries out supplementary irrigation from the second grout hole 108, or the first grout hole 107 and the second grout hole 108 carry out supplementary irrigation, however it is necessary that it is emphasised that must be sequentially carried out simultaneously.Because the size on foundation ring 102 and blower fan pylon basis is very big, although the width in gap 103 is little, but the overall dimension in gap 103 is relatively larger, if carrying out out of order, very easily forming space in gap 103, cause that gap 103 goes wrong again during supplementary irrigation.
When part grout hole in first grout hole 107 and/or the second grout hole 108 is carried out supplementary irrigation, all the other grout holes are in open state, first epoxy resin can along gap 103 to adjacent grout hole flowing, and flow along gap 103 to air bleeding valve place, first close principle according to first grout and close first row air valve 105, second row air valve the 106, first grout hole 107 and the second grout hole 108.
In order to make the first epoxy resin be fully infiltrated in the small gap within gap 103, after pressure during supplementary irrigation reaches 0.5MPa and maintains 5min, first grout hole 107 and/or the second grout hole 108 carry out supplementary irrigation still further below.
If first starting supplementary irrigation from the first grout hole 107 during supplementary irrigation, then first first grout hole 107 carries out supplementary irrigation wherein, and after pressure during supplementary irrigation reaches 0.5MPa and maintains 5min, first grout hole 107 carries out supplementary irrigation still further below；If first starting supplementary irrigation from the second grout hole 108 during supplementary irrigation, then first first grout hole 107 carries out supplementary irrigation wherein, and after pressure during supplementary irrigation reaches 0.5MPa and maintains 4～6min, second grout hole 108 carries out supplementary irrigation still further below；If the first grout hole 107 and the second grout hole 108 are carried out supplementary irrigation simultaneously, after then first the first grout hole 107 grouting pressure being reached 0.5MPa and maintaining 5min, first grout hole carries out supplementary irrigation still further below, simultaneously, after first the second grout hole 108 grouting pressure reaching 0.5MPa and maintaining 5min, second grout hole carries out supplementary irrigation still further below.
The performance requirement of the first epoxy resin is mainly: comprcssive strength 50MPa after solidification, tensile strength 35MPa, all can effectively be connected between first epoxy resin with foundation ring 102 and concrete 101 after solidification, there is certain toughness, raw brittle break does not occur under the effect of extruding force, and hardening time is unsuitable long.
In order to improve the stability after gap 103 is repaired, also the first epoxy resin having been improved, the first epoxy resin includes firming agent, diluent, filler and extender.Firming agent is the integral component of resin, it is also added into filler, diluent and extender further, the purpose adding filler is the shrinkage factor when abrasion resistance after improving the first epoxy resin cure and reduction the first epoxy resin cure, the purpose adding diluent is to increase the mobility of the first epoxy resin, the first epoxy resin is enable to enter in less space, add extender in order that reduce the shrinkage factor after the first epoxy resin cure, reduce gap 103 place after repairing and the probability that secondary destroys occurs, improve the stability repairing rear fan tower foundation.
In order to remove the water in gap 103 further, improve the stability repairing rear fan tower foundation, in the first epoxy resin, be added with dehydrant.After injecting the first epoxy resin in gap 103, remove the water of residual in gap 103 further, improve the adhesion between the first epoxy resin and concrete 101 and foundation ring 102.
(5) post processing: after the first epoxy resin cure in gap 103, arranges waterproof layer 109 in the junction of concrete 101 end face Yu foundation ring 102 outer wall.
In order to find in time repair after gap 103 place produced problem, waterproof layer 109 is made of clear material.
In prior art, generally adopt SBS flexible web as waterproof layer 109, designer of the present utility model is in long-term work process, it is found that while that SBS flexible web has certain waterproof effect, but after being detrimental to repairing gap 103, foundation ring 102 periphery is checked, it is not easy to find foundation ring 102 periphery produced problem in time.Waterproof layer 109 is transparent, it is simple to the situation at direct vision port 103 place, if the gap 103 after repairing again goes wrong and can be found in time.
Further for the waterproof effect ensureing waterproof layer 109, and ensure the transparency of waterproof layer 109, waterproof layer 109 adopts epoxy resin to add the composite construction of glass fabric 111, concrete operation step is: be first cleaned the junction of concrete 101 end face Yu foundation ring 102 outer wall, clean 15cm from gap 103 upwardly along foundation ring 102 outer wall and clean 15cm from gap 103 outward along concrete 101 end face, at gap 103 opening part, concrete 101 end face and foundation ring 102 outer wall be coated with solidifying after transparent the second epoxy resin 110 as substrate, then layer of glass cloth 111 is laid from the bottom to top successively, second epoxy resin 110, glass fabric 111 and the second epoxy resin 110.
The second epoxy resin 110 and glass fabric 111 is adopted to be combined as waterproof layer 109, the toughness that the existing certain intensity of waterproof layer 109 is higher again.The performance requirement of the second epoxy resin 110 is mainly: tensile strength 35MPa after solidification, comprcssive strength 15MPa, transparent state after solidification.
In order to prevent extraneous rainwater from penetrating in the gap 103 after repairing further, after waterproof layer 109 is set, at least one of which waterproof baffle ring 112 is set in the lateral wall of foundation ring 102, waterproof baffle ring 112 is positioned at the top of waterproof layer 109 and transversely arranges, and waterproof baffle ring 112 projected area in the horizontal plane is more than waterproof layer 109.Waterproof baffle ring 112 is similar to the brim of a hat, and waterproof baffle ring 112 can cover waterproof layer 109 as waterproof the first line of defence, reduces the rainwater erosion to waterproof layer 109.
Referring to Fig. 8～Figure 10, a kind of wind electric field blower tower foundation repairing and reinforcing structure is four the first grout holes in the arranged outside of foundation ring only, this structure decrease the second grout hole, operate simpler, lower in cost, when gap is relatively larger, it is possible to adopt this structure.Referring to Figure 11, a kind of wind electric field blower tower foundation repairing and reinforcing structure, at eight first grout holes of arranged outside of foundation ring, inside foundation ring, it is provided with four the second grout holes.Referring to Figure 12, a kind of wind electric field blower tower foundation repairing and reinforcing structure, at eight first grout holes of arranged outside of foundation ring, inside foundation ring, it is provided with eight the second grout holes.The quantity of the second grout hole and the first grout hole suitably can increase and decrease according to the width in gap.
Although illustrate and describing this utility model with specific embodiment, however it will be appreciated that may be made that when without departing substantially from spirit and scope of the present utility model many other change and amendment.It is, therefore, intended that include all such changes and modifications belonging within the scope of this utility model in the following claims.
Claims (10)
1. a wind electric field blower tower foundation repairing and reinforcing structure, it is characterized in that, including concrete and foundation ring, the axial line of described foundation ring is vertically arranged, the top of described foundation ring and bottom are respectively arranged with top flange and flange in the bottom, the bottom of described foundation ring and flange in the bottom are embedded in concrete, gap is there is between described foundation ring and concrete, the outside of described foundation ring or inner side are provided with the first grout hole, described first grout hole is vertically arranged, described first grout hole from concrete surface extend to foundation ring bottom and with foundation ring bottom gap area, the first epoxy resin it is filled with in described gap.
2. wind electric field blower tower foundation repairing and reinforcing structure according to claim 1, it is characterized in that, described first grout hole is arranged on the outside of foundation ring, the inner side of described foundation ring is provided with multiple second grout hole, described second grout hole is vertically arranged, described second grout hole from concrete surface extend to foundation ring bottom and with foundation ring bottom gap area.
3. wind electric field blower tower foundation repairing and reinforcing structure according to claim 2, it is characterized in that, the plurality of second grout hole and multiple first grout hole are all uniformly arranged along the circumference of foundation ring, and described second grout hole and the first grout hole are arranged along the circumferential misalignment of foundation ring.
4. wind electric field blower tower foundation repairing and reinforcing structure according to claim 3, it is characterized in that, gap is positioned at the opening in the outside of foundation ring and is provided with the multiple first row air valves with gap area, and gap is positioned at the opening of the inner side of foundation ring and is provided with the multiple second row air valves with gap area.
5. wind electric field blower tower foundation repairing and reinforcing structure according to claim 4, it is characterised in that the quantity of described first row air valve and the first grout hole is identical, and first row air valve and the second grout hole are in the radially coincidence of foundation ring；The quantity of described second row air valve and the first grout hole is identical, and second row air valve and the second grout hole are in the radially coincidence of foundation ring.
6. wind electric field blower tower foundation repairing and reinforcing structure according to claim 5, it is characterised in that the quantity of described second grout hole, the first grout hole, first row air valve and second row air valve is 4～8.
7. wind electric field blower tower foundation repairing and reinforcing structure according to claim 1, it is characterised in that the opening in described gap is provided with transparent waterproof layer.
8. wind electric field blower tower foundation repairing and reinforcing structure according to claim 7, it is characterised in that described waterproof layer includes the second epoxy resin layer and fiberglass cloth.
9. wind electric field blower tower foundation repairing and reinforcing structure according to claim 8, it is characterized in that, described waterproof layer is the second epoxy resin layer, fiberglass cloth, the second epoxy resin layer, fiberglass cloth and the second epoxy resin layer from the bottom to top successively.
10. wind electric field blower tower foundation repairing and reinforcing structure according to claim 1, it is characterized in that, the lateral wall of described foundation ring arranges at least one of which waterproof baffle ring, described waterproof baffle ring is positioned at the top of waterproof layer and transversely arranges, and described waterproof baffle ring projected area in the horizontal plane is more than waterproof layer.
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| CN201521004712.7U CN205369329U (en) | 2015-12-07 | 2015-12-07 | Reinforced structure is repaired on wind -powered electricity generation field fan pylon basis |
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| CN201521004712.7U CN205369329U (en) | 2015-12-07 | 2015-12-07 | Reinforced structure is repaired on wind -powered electricity generation field fan pylon basis |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284400A (en) * | 2016-09-18 | 2017-01-04 | 中国电建集团华东勘测设计研究院有限公司 | A kind of prestressed concrete Wind turbines basis |
| CN108487249A (en) * | 2018-03-06 | 2018-09-04 | 中国电建集团华东勘测设计研究院有限公司 | A kind of blower foundation reinforcement means |
| CN112921842A (en) * | 2021-01-27 | 2021-06-08 | 天津市管道工程集团有限公司 | Water-stopping and leaking-stopping construction method for concrete culvert pipe |
| CN115573376A (en) * | 2022-08-12 | 2023-01-06 | 中国电力工程顾问集团西南电力设计院有限公司 | Treatment method and reinforcement device for circular transmission tower foundation cracking |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106284400A (en) * | 2016-09-18 | 2017-01-04 | 中国电建集团华东勘测设计研究院有限公司 | A kind of prestressed concrete Wind turbines basis |
| CN108487249A (en) * | 2018-03-06 | 2018-09-04 | 中国电建集团华东勘测设计研究院有限公司 | A kind of blower foundation reinforcement means |
| CN108487249B (en) * | 2018-03-06 | 2020-09-11 | 中国电建集团华东勘测设计研究院有限公司 | Method for reinforcing wind turbine foundation |
| CN112921842A (en) * | 2021-01-27 | 2021-06-08 | 天津市管道工程集团有限公司 | Water-stopping and leaking-stopping construction method for concrete culvert pipe |
| CN115573376A (en) * | 2022-08-12 | 2023-01-06 | 中国电力工程顾问集团西南电力设计院有限公司 | Treatment method and reinforcement device for circular transmission tower foundation cracking |
| CN115573376B (en) * | 2022-08-12 | 2024-05-24 | 中国电力工程顾问集团西南电力设计院有限公司 | Method for treating cracking of foundation of circular transmission tower |
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