CN117702893A - Online plugging method for leakage of water outlet of circulating water - Google Patents
Online plugging method for leakage of water outlet of circulating water Download PDFInfo
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- CN117702893A CN117702893A CN202311482739.6A CN202311482739A CN117702893A CN 117702893 A CN117702893 A CN 117702893A CN 202311482739 A CN202311482739 A CN 202311482739A CN 117702893 A CN117702893 A CN 117702893A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000004567 concrete Substances 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000011150 reinforced concrete Substances 0.000 claims description 18
- 238000005553 drilling Methods 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000004575 stone Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000005266 casting Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Abstract
The disclosure relates to an online sealing method for leakage of a circulating water outlet, comprising the following steps: s1, determining a plugging section of a drainage culvert pipe according to a drainage outlet leakage point, and dividing the plugging section into a left mold bag plugging section, a right mold bag plugging section and an underwater concrete plugging section positioned between the two mold bag plugging sections; s2, two through holes are respectively excavated at intervals on the ground in a one-to-one correspondence manner corresponding to the two mould bag plugging sections, and the through holes extend from the ground to the upper surface of the top plate of the drainage culvert pipe; s3, separating the partial top plate according to the size of the mould bags to form mounting holes, sequentially downwards mounting the mould bags through the through holes and the mounting holes, injecting concrete for filling after the mould bags are mounted in place to form a mould bag plugging body, and plugging the space of two mould bag plugging sections; s4, corresponding to the underwater concrete plugging section, digging pouring holes in the ground, wherein the pouring holes extend from the ground towards the drainage culvert pipe and penetrate through the top plate; s5, injecting the underwater undispersed concrete into the space of the underwater concrete plugging section through the pouring hole to plug so as to realize on-line non-stop and safe plugging.
Description
Technical Field
The disclosure relates to a method for repairing leakage of a water outlet of a circulating water system, in particular to an online sealing method for leakage of the water outlet of the circulating water system.
Background
In the circulating water drainage application, the drainage outlet (such as a temporary drainage outlet) is often plugged according to the actual application condition, and if the drainage outlet is not plugged tightly enough, water can be discharged outwards and the ecological environment protection requirement cannot be met, so that the leakage point of the plugged drainage outlet needs to be plugged again. If the machine is stopped for blocking, the construction progress is delayed; if the manual plugging is carried out under the condition of no shutdown, as the drainage culvert pipe is filled with pressurized water, the pressure is about 3-5mH2O, the water is in a flowing state, the flow speed can be increased along with the reduction of the plugging filling section, so that the plugging is carried out by using the filling material by a diver, the personal safety and the tightness of the plugging cannot be ensured, the reworking condition can occur, the plugging of the water outlet cannot be completed on schedule, and the ecological environment protection is influenced.
Disclosure of Invention
The purpose of the present disclosure is to provide an online sealing method for leakage of a water outlet of circulating water, which can realize online non-stop and safe sealing.
In order to achieve the above object, the present disclosure provides an online sealing method for leakage of a water outlet of circulating water, including:
s1, determining a plugging section of a drainage culvert pipe according to a drainage outlet leakage point, and dividing the plugging section into a left mold bag plugging section, a right mold bag plugging section and an underwater concrete plugging section positioned between the two mold bag plugging sections;
s2, two through holes are excavated on the ground at intervals corresponding to the two mould bag plugging sections, and the through holes extend from the ground to the upper surface of the top plate of the drainage culvert pipe;
s3, separating a local top plate according to the size of the mould bag to form a mounting hole, sequentially downwards mounting the mould bag through the through hole and the mounting hole, injecting concrete into the mould bag to fill the mould bag to form a mould bag plugging body after the mould bag is mounted in place, and plugging the space of two mould bag plugging sections;
s4, corresponding to the underwater concrete plugging section, digging a pouring hole on the ground, wherein the pouring hole extends from the ground towards the drainage culvert pipe and penetrates through the top plate;
s5, injecting the underwater undispersed concrete into the space of the underwater concrete plugging section through the pouring holes to plug.
Optionally, in the step S2, the through hole is constructed by manually digging, and a plurality of sections of reinforced concrete retaining walls are cast on the wall of the through hole, the manual digging and the casting of the reinforced concrete retaining walls are alternately performed, and the upper end face of the first section of reinforced concrete retaining wall at the uppermost end is higher than the ground.
Optionally, in step S3, the partial top plate to be separated is first determined according to the size of the mounting hole, and a plurality of hanging rings are disposed on the upper surface of the partial top plate, and are uniformly distributed at intervals along the circumferential direction of the mounting hole, and each hanging ring is wound with a steel wire hanging rope.
Optionally, in the step S3, a drilling machine is used to drill holes in a crossing manner along the periphery of the partial top plate, and the partial top plate is taken out from the through hole after drilling is completed.
Optionally, in step S3, the mold bag blocking body is formed by sequentially lowering and respectively injecting concrete into a plurality of mold bags in a sequence from bottom to top, wherein a pouring opening is formed at the upper end of each mold bag, and each mold bag is filled with a layer of mold bag continuously after the mold bags are filled.
Optionally, the grouting pipe is fixed on the mould bag and is lowered together when the mould bag is lowered and installed.
Optionally, each layer of pouring opening and the circumference of lower surface of mould bag all are provided with the solid fixed ring, pass gu fixed ring is provided with the direction rope, and each layer of mould bag is followed the direction rope is put down and is installed in place.
Optionally, an accelerator is added inside the mould bags at the uppermost layer.
Alternatively, a C30 fine stone underwater undispersed concrete is injected into the mold bag, wherein the fine stone particle size is not more than 10mm.
Optionally, in step S4, at least one air vent is excavated along the cross section of the drainage culvert pipe by a drilling machine, and the air vent and the pouring hole are uniformly arranged at intervals.
The beneficial effects of this technical scheme are: the two mould bag plugging bodies which can be more suitable for the surface size of the drainage culvert pipe are respectively plugged at two sides, and the middle gap is matched for filling underwater non-dispersed concrete plugging, so that the construction is quick and convenient, the leakage point of the drainage outlet can be comprehensively and firmly plugged, the online non-stop safety plugging is finally realized, the personal safety hidden danger caused by diving operation is avoided, and the normal operation of the circulating water drainage system is not delayed.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a partial plan view of a circulating water outlet provided in accordance with one embodiment of the present disclosure;
FIG. 2 is a schematic view of an online shutoff longitudinal cross section of a circulating water drain outlet leak provided in accordance with an embodiment of the present disclosure (only showing a portion of the circulating water drain system);
FIG. 3 is a schematic view of B-B of FIG. 2;
fig. 4 is a schematic view of A-A of fig. 2.
Description of the reference numerals
1-mould bag plugging section, 11-through hole, 12-reinforced concrete retaining wall, 121-first section reinforced concrete retaining wall, 2-underwater concrete plugging section, 21-pouring hole, 22-underwater undispersed concrete, 23-exhaust hole, 3-ground, 4-drainage culvert pipe, 41-top plate, 411-mounting hole, 5-mould bag plugging body, 51-mould bag, 52-C30 fine stone underwater undispersed concrete, A-temporary drainage outlet.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise indicated, terms of orientation such as "upper and lower" are generally defined with respect to the upper and lower directions of the drawing plane of fig. 2, and terms such as "left and right" are defined with respect to the left and right directions of the drawing plane of fig. 2; the "inner and outer" are relative to the inner and outer of the contour of the corresponding component itself, for example, for the mold bags, the side of the mold bag in contact with the drainage culvert is the outer. Furthermore, in the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements unless otherwise explained. It is to be understood by those of ordinary skill in the art that the above-described directional terms are used for purposes of illustration and description of the present disclosure, and are not intended to be limiting.
Referring to fig. 1 to 4, the present disclosure will be further described by taking an example that a temporary water outlet is provided in the first-stage water circulation system engineering at the construction stage, and a temporary water outlet a is plugged after the second-stage construction and casting, and the temporary water outlet a is plugged and plugged so as to share the same water outlet with the second-stage water circulation and drainage.
The disclosure provides an online sealing method for leakage of a circulating water outlet, which comprises the following steps:
s1, determining a plugging section of a drainage culvert pipe 4 according to a drainage outlet leakage point, and dividing the plugging section into two mould bag plugging sections 1 and an underwater concrete plugging section 2 positioned between the two mould bag plugging sections 1;
s2, two through holes 11 are respectively excavated on the ground 3 in a one-to-one correspondence manner corresponding to the two mould bag plugging sections 1, and the through holes 11 extend from the ground to the upper surface of the top plate 41 of the drainage culvert pipe 4;
s3, separating a local top plate according to the size of the mould bags 51 to form mounting holes 411, sequentially passing the mould bags 51 through the through holes 11 and the mounting holes 411, and filling concrete into the mould bags to form a mould bag plugging body 5 after the mould bags are mounted in place to plug the space of the two mould bag plugging sections 1;
s4, corresponding to the underwater concrete plugging section 2, digging pouring holes 21 on the ground 3, wherein the pouring holes 21 extend from the ground 3 towards the drainage culvert 4 and penetrate through the top plate 41;
and S5, injecting the underwater undispersed concrete 22 into the space of the underwater concrete plugging section 2 through the pouring holes 21 to plug.
Through the technical scheme, firstly, a section which is relatively convenient to construct and is beneficial to plugging is selected according to the water outlet leakage point, then two mould bag plugging bodies 5 are adopted to comprehensively plug two sides of the drainage culvert pipe 4 in a manner of being more suitable for the internal condition of the drainage culvert pipe, after the two mould bag plugging bodies 5 are completely solidified, underwater undispersed concrete is poured in a gap (namely an underwater concrete plugging section) between the two mould bag plugging bodies 5 until the space between the two mould bag plugging bodies 5 is filled, so that the comprehensive and firm plugging of the water outlet leakage point is realized, and finally, the safe plugging of on-line non-stop is realized.
The length of the plugging sections may be selected in any suitable manner, alternatively, two symmetrically arranged molding bag plugging sections 1 may be used, and the plugging length of the molding bag plugging sections is greater than the plugging length of the middle underwater concrete plugging section 2 (as shown in specific reference to fig. 2, as an implementation manner, the lengths of the molding bag plugging sections and the underwater concrete plugging sections may be 2:1). On the one hand, the longer plugging sections are selected on the two sides, so that the plugging tightness on the two sides can be enhanced, and on the other hand, the middle section is relatively shorter in length due to the fact that quick pouring molding plugging, material saving and the like are considered. Of course, in other embodiments, other alternative arrangements of the plugging segments may be employed, and the disclosure is not limited in this regard.
Since the top plate 41 of the drainage culvert 4 is covered with a thick soil (for example, in the embodiment shown in fig. 2, a 6m thick soil is covered between the top plate 41 and the surface of the ground 3), and a plurality of embankments and pipelines are provided around the top plate, in order to avoid the influence of the large excavation on the factory pipelines and the embankments, in the specific embodiment of the present disclosure, in the step S2, the through holes 11 are constructed by adopting a manual hole digging manner, the walls of the through holes 11 are poured with a plurality of sections of reinforced concrete retaining walls 12, the manual hole digging and the pouring of the reinforced concrete retaining walls 12 are alternately performed, and the upper end face of the first section of reinforced concrete retaining wall 121 positioned at the uppermost end is higher than the ground 3, so as to strengthen the hole opening retaining walls and prevent the ground from collapsing.
Wherein the aperture of the manual hole digging can be determined according to the folded size of the manufactured mould bags and the operation space of related equipment, optionally, referring to fig. 3, as an implementation manner, the depth of the first section of reinforced concrete retaining wall 121 below the ground can be not less than 1000mm and higher than 500mm above the ground; the height of each section of reinforced concrete retaining wall in the soil layer can be 1000mm, and if the reinforced concrete retaining wall meets the flowing silt and the flowing sand, the height of each section of reinforced concrete retaining wall can be reduced by 300-500 mm; in order to ensure the safety during manual hole digging during construction, pile hole digging and retaining wall casting are alternately carried out, each section is used as a construction closed loop, namely, each section of reinforced concrete retaining wall is poured after each section of soil is dug, and each section of reinforced concrete retaining wall is subjected to continuous construction on the same day. Optionally, the circumferential steel bars of the reinforced concrete retaining wall 12 can be arranged according to phi 10@150, the vertical longitudinal steel bars can be arranged according to phi 14@200, the thickness of the retaining wall can be 200-280 mm, and C30 concrete pouring can be adopted, so that the safety and stability of the wall of the hole can be ensured.
In order to facilitate the separation and removal of the partial top plate (the partial top plate is a top plate within the opening range of the mounting hole 411), in the specific embodiment of the present disclosure, in step S3, the partial top plate to be separated is first predetermined according to the size of the mounting hole 411 (the size should ensure that the folded mold bag 51 can smoothly enter the drainage culvert pipe 4 for internal installation), and a plurality of hanging rings are disposed on the upper surface of the partial top plate, and are uniformly distributed at intervals along the circumferential direction of the mounting hole 411, and each hanging ring is wound with a steel wire hanging rope. Alternatively, as an implementation manner, 4 hanging rings can be uniformly implanted on the top plate at intervals, the hanging rings are made of phi 16 steel bars, the steel bars are implanted into the top plate by 325mm, and the hanging rings are symmetrically and uniformly distributed from the center of the opening of the mounting hole 411; of course, in other embodiments, the expansion bolts with hanging rings can be combined with the anchoring glue, and the design value of the tensile force born by the expansion bolts is equal to the tensile value of the planted bars so as to bear the hanging of the partial top plate. After the construction of the hanging ring is finished, the hanging ring can be fixed by adopting a steel wire hanging rope with the diameter of 10mm, and the hanging ring is further led out of the ground for fixation through the steel wire hanging rope.
After the range of the local top plate is determined and the setting of the hanging ring is completed, in a specific embodiment of the present disclosure, in the step S3, a drilling machine is used to drill holes in a crossing manner along the periphery of the local top plate, and after the drilling is completed, the local top plate is taken out from the through hole 11. Specifically, after the through hole 11 is excavated and the local top plate hanging ring is installed in place, the periphery of the opening range can be directly drilled on the ground of the factory by adopting a drilling machine, optionally, the intersection between adjacent drilling holes should be not less than 20mm, and the local top plate in the opening range is finally separated by the intersection drilling holes to form the installation hole 411 through which the die bag 51 can pass.
In a specific embodiment of the disclosure, referring to fig. 2 and 3, in step S3, the mold bag blocking body 5 may be formed by sequentially lowering and respectively injecting concrete into a plurality of mold bags in a bottom-to-top order, wherein the upper end of each mold bag 51 has a pouring opening, and each mold bag 51 is filled with a layer of mold bags 51. That is, the mold bag plug body 5 adopts multi-layer split filling, alternatively, the mold bags 51 can be made of geotechnical mold bag cloth, the plane size of the mold bags and the height of each layer of mold bags can be designed according to practical application environments, each layer of mold bags 51 is provided with an independent pouring opening, one layer of mold bags 51 are placed from bottom to top, concrete is filled, and after filling is finished, the next layer of mold bags 51 are continuously placed down, and filling is sequentially carried out.
In addition, in the specific embodiment of the disclosure, the grouting pipe is simultaneously fixed on the mold bag 51 and is lowered together when the mold bag 51 is lowered and installed, so that the grouting pipe is tightly attached to the surface of the culvert by filling and expanding the mold bag 51, the grouting pipe is required to be disassembled after concrete is poured into the mold bag 51 through the grouting pipe and solidification is completed, and then the next layer of mold bag is lowered and filled.
In order to ensure that the mold bags 51 of each layer are mounted in place and accurately, in a specific embodiment of the present disclosure, fixing rings may be disposed on the periphery of the pouring opening and the lower surface of each layer of the mold bags 51, guide ropes may be disposed through the fixing rings, and each layer of the mold bags 51 may be mounted in place by being lowered along the guide ropes. That is, a plurality of fixing rings are arranged on each layer of the die bags 51, and the fixing rings are put down along the guide ropes along the die bags 51, so that the problem that a plurality of layers are put down and installed in place is avoided.
To avoid loss of concrete in the uppermost membrane bag 51 under the influence of water pressure before it is set, in a specific embodiment of the present disclosure, an accelerator is added to the inside of the uppermost membrane bag 51 to accelerate setting of the concrete.
After the die bags 51 are lowered into place, in a specific embodiment of the present disclosure, non-dispersed concrete 52 (an expanding agent is added, and an expanding agent for filling is used) under water is injected into the die bags 51, wherein the fine stone particle size is not more than 10mm in order to prevent broken stone in the concrete from puncturing the die bags 51. Of course, in other embodiments, cement mortar of the same compressive grade may be used instead, and the addition of the expansion agent requires that the concrete not be dispersed underwater with the C30 fine stone, as this disclosure is not limiting.
In a specific embodiment of the present disclosure, referring to fig. 4, in the step S4, at least one exhaust hole 23 is excavated along the cross section of the drainage culvert pipe 4 by using a drilling machine, and the exhaust hole 23 and the pouring hole 21 are uniformly spaced. The number and positions of the air vent holes 23 and the pouring holes 21 can be set according to actual needs.
Optionally, referring to fig. 4, in a specific embodiment of the disclosure, drilling is performed on the surface of the underwater concrete plugging section 2 by using a drilling machine, the drilling machine adopts a drill bit with a diameter greater than 200mm, a d219×5 steel pipe is used for wall protection for preventing hole collapse, one hole can be drilled at a distance of 1.25m on the cross section of the drainage culvert 4, for example, 3 holes can be drilled, and after the drilling is finished, the sediment in the drainage culvert and the surface of the drainage culvert are cleaned by using the 3 holes; the grouting pipes are preset in advance by utilizing the holes as required after cleaning, for example, one of the grouting holes 21 can be selected for casting, the other two grouting holes can be used as exhaust holes 23, and as an implementation mode, the grouting holes 21 and the exhaust holes 23 are arranged in the middle of the underwater concrete plugging section, the middle grouting hole 21 can be selected, and the other two grouting holes 23 are used as exhaust holes 23. The plugging underwater non-dispersed concrete 22 can be plugged by adopting C30 underwater non-dispersed concrete (an expansion agent and an accelerator are added), and meanwhile, the C30 underwater non-dispersed concrete is doped with an anti-dispersant, and the expansion agent is a filling expansion agent.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. An online plugging method for leakage of a circulating water outlet is characterized by comprising the following steps:
s1, determining a plugging section of a drainage culvert pipe according to a drainage outlet leakage point, and dividing the plugging section into a left mold bag plugging section, a right mold bag plugging section and an underwater concrete plugging section positioned between the two mold bag plugging sections;
s2, two through holes are excavated on the ground at intervals corresponding to the two mould bag plugging sections, and the through holes extend from the ground to the upper surface of the top plate of the drainage culvert pipe;
s3, separating a local top plate according to the size of the mould bag to form a mounting hole, sequentially downwards mounting the mould bag through the through hole and the mounting hole, injecting concrete into the mould bag to fill the mould bag to form a mould bag plugging body after the mould bag is mounted in place, and plugging the space of two mould bag plugging sections;
s4, corresponding to the underwater concrete plugging section, digging a pouring hole on the ground, wherein the pouring hole extends from the ground towards the drainage culvert pipe and penetrates through the top plate;
s5, injecting the underwater undispersed concrete into the space of the underwater concrete plugging section through the pouring holes to plug.
2. The online plugging method of the circulating water outlet leakage according to claim 1, wherein in the step S2, the through hole is constructed by manually digging, a plurality of sections of reinforced concrete retaining walls are poured on the wall of the through hole, the manual digging and the pouring of the reinforced concrete retaining walls are alternately performed, and the upper end face of the first section of reinforced concrete retaining wall positioned at the uppermost end is higher than the ground.
3. The online plugging method of the circulating water outlet leakage according to claim 1, wherein in the step S3, the partial top plate to be separated is determined according to the size of the mounting hole, a plurality of hanging rings are arranged on the upper surface of the partial top plate, the hanging rings are uniformly distributed at intervals along the circumferential direction of the mounting hole, and a steel wire hanging rope is wound on each hanging ring.
4. The method for on-line plugging of a drain outlet of circulating water according to claim 3, wherein in said step S3, a drilling machine is used to drill holes in a cross manner along the periphery of said partial top plate, and said partial top plate is taken out from said through hole after the drilling is completed.
5. The online plugging method of the circulating water outlet leakage according to claim 1, wherein in the step S3, a plurality of layers of the mold bags are adopted for sequentially lowering and respectively injecting concrete according to a sequence from bottom to top to form the mold bag plugging body, wherein the upper end of each layer of the mold bags is provided with a pouring opening, and each layer of the mold bags is continuously filled with one layer of the mold bags after filling.
6. The on-line plugging method for circulating water outlet leakage according to claim 5, wherein the grouting pipe is simultaneously fixed on the mold bag and is simultaneously lowered when the mold bag is lowered and installed.
7. The on-line plugging method for circulating water outlet leakage according to claim 5, wherein fixing rings are arranged on the periphery of the pouring opening and the lower surface of each layer of the mould bags, guide ropes are arranged through the fixing rings, and each layer of the mould bags are arranged in place along the guide ropes in a descending mode.
8. The online plugging method for the leakage of the circulating water outlet according to claim 5, wherein an accelerator is added in the uppermost mold bag.
9. The on-line sealing method of circulating water outlet leakage according to claim 5, wherein C30 fine stone underwater undispersed concrete is injected into the mold bag, wherein the fine stone particle size is not more than 10mm.
10. The online plugging method of the circulating water outlet leakage according to claim 1, wherein in the step S4, at least one vent hole is excavated along the cross section of the drainage culvert pipe by a drilling machine, and the vent hole and the pouring hole are uniformly arranged at intervals.
Priority Applications (1)
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CN202311482739.6A CN117702893A (en) | 2023-11-08 | 2023-11-08 | Online plugging method for leakage of water outlet of circulating water |
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CN202311482739.6A CN117702893A (en) | 2023-11-08 | 2023-11-08 | Online plugging method for leakage of water outlet of circulating water |
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