CN113565465A - Filling and pouring device for lining coring hole and construction method thereof - Google Patents
Filling and pouring device for lining coring hole and construction method thereof Download PDFInfo
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- CN113565465A CN113565465A CN202110815806.6A CN202110815806A CN113565465A CN 113565465 A CN113565465 A CN 113565465A CN 202110815806 A CN202110815806 A CN 202110815806A CN 113565465 A CN113565465 A CN 113565465A
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- coring hole
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000011083 cement mortar Substances 0.000 claims abstract description 66
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 230000001154 acute effect Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007788 roughening Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
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- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
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- 230000006872 improvement Effects 0.000 description 2
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- 238000007711 solidification Methods 0.000 description 2
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- 230000007797 corrosion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
Abstract
The invention provides a filling and pouring device for a lining coring hole and a construction method thereof, wherein the filling and pouring device comprises a sealing panel and three baffles, wherein a feeding port is formed in the middle of the sealing panel, the three baffles surround to form a feeding channel, the feeding channel is communicated with the feeding port, and the extension direction of the feeding channel is intersected with the extension direction of the feeding port at an acute angle; the construction method comprises the following steps: roughening the coring holes; cleaning the coring holes and carrying out wet water treatment; installing a lining coring hole filling and pouring device, so that a feeding port of the lining coring hole filling and pouring device is communicated with a coring hole, and a feeding channel of the lining coring hole filling and pouring device is positioned outside the coring hole; pouring expanded cement mortar into the coring hole through the feeding channel and the feeding port; after the expanded cement mortar meets the preset strength requirement, removing the lining coring hole and filling the pouring device; and (5) grinding the surface of the coring hole. The invention can ensure the plumpness and compactness of the fillers in the coring holes.
Description
Technical Field
The invention relates to the technical field of tunnel secondary lining quality detection, in particular to a lining coring hole filling and pouring device and a construction method thereof.
Background
In the construction of tunnel engineering, drilling sampling is required to be carried out according to detection frequency in the quality detection of secondary lining, and concrete strength physical detection is carried out on a core sample to judge whether the construction quality meets the design and inspection requirements. The diameter of a core taking hole for core drilling and sampling on a tunnel lining (arch wall) is 100mm, and the sampling depth is determined according to the requirements of installation specifications of different parts.
After the core is got in the drilling, if do not carry out the shutoff to getting the core hole, can cause downthehole corrosion at the long-term operation in-process in tunnel, erode the inside reinforcing bar of lining cutting, and then influence secondary lining's structural strength. In the existing part of construction process, the core-removing hole can be plugged and blocked manually on site, and the quality of blocking cannot be guaranteed. For core taking holes in the arch part and the arch shoulder, due to high-altitude operation, the manual plugging difficulty is high, the compactness of the filling cannot be guaranteed, and particularly, the core taking holes with downward orifices or downward inclined orifices can cause concrete falling and have high risk accident potential.
Disclosure of Invention
The invention aims to provide a filling and pouring device for a lining coring hole, which is convenient for filling the coring hole and enables the compactness and the plumpness of fillers in the coring hole to meet the design requirements.
The second purpose of the invention is to provide a construction method of the lining coring hole filling and pouring device.
In order to achieve the first purpose, the lining coring hole filling and filling device provided by the invention comprises a sealing panel and three baffles, wherein a feeding port penetrating through the sealing panel in the thickness direction is formed in the middle of the sealing panel, the three baffles surround the outer surface of the sealing panel and form a feeding channel, the feeding channel is communicated with the feeding port, the extending direction of the feeding channel is intersected with the extending direction of the feeding port at an acute angle, a plurality of connecting parts are arranged on the sealing panel, mounting holes are penetratingly formed in the connecting parts, and the mounting holes are located around the feeding port.
According to the scheme, the sealing panel is arranged and used for installing and fixing the lining coring hole filling and filling device at the coring hole; the core taking hole is communicated with the lining core taking hole through the feeding port, and the expanded cement mortar is poured from the feeding channel to the feeding port and the core taking hole through the feeding channel so as to fill the core taking hole; through setting up the pan feeding passageway, be favorable to conveniently pouring the in-process and carry out the drum operation of pounding to the downthehole expanded cement mortar of coring to further improve expanded cement mortar's plumpness and closely knit degree. The feeding channel and the feeding port are intersected at an acute angle, and when the coring hole with the downward or inclined downward hole opening is filled, the side wall of the feeding channel is used for blocking expanded cement mortar poured into the coring hole, so that the expanded cement mortar is prevented from falling before solidification, and the full pouring of the expanded cement mortar in the coring hole and the design requirement of compactness of the expanded cement mortar are favorably ensured.
The further proposal is that two baffles are respectively arranged at two sides of the feeding port, the other baffle is arranged opposite to the feeding port, and the baffle arranged opposite to the feeding port extends outwards in an inclined way from the outer surface of the sealing panel and forms an acute angle with the sealing panel.
The further scheme is that a sealing piece is arranged on the inner side of the sealing panel and is positioned around the feeding port, and the sealing piece is made of flexible materials.
According to the scheme, the sealing element made of the flexible material is arranged, when the filling and pouring device is installed, the sealing panel extrudes the sealing element, so that the sealing panel and the arc-shaped arch shoulder or arc-shaped arch crown of the lining can be in sealing connection, and the condition that the expanded cement mortar leaks when the expanded cement mortar is poured subsequently is prevented.
In order to achieve the second object, the invention provides a construction method of a lining coring hole filling and pouring device, which comprises the following steps:
roughening the coring holes;
cleaning the coring holes and carrying out wet water treatment;
installing a lining coring hole filling and pouring device, so that a feeding port of the lining coring hole filling and pouring device is communicated with a coring hole, and a feeding channel of the lining coring hole filling and pouring device is positioned outside the coring hole;
pouring expanded cement mortar into the coring hole through the feeding channel and the feeding port;
after the expanded cement mortar meets the preset strength requirement, removing the lining coring hole and filling the pouring device;
and (5) grinding the surface of the coring hole.
According to the scheme, the roughening treatment is carried out on the coring hole, so that the improvement of the binding power of the expanded cement mortar and the hole wall of the coring hole is facilitated; the filling and pouring device for the lining coring hole is installed, so that the filling and pouring operation for the coring hole on the lining can be conveniently carried out, the expanded cement mortar is prevented from being separated from the coring hole under the action of the gravity of the expanded cement mortar in the pouring process, and the plumpness and the compactness of the expanded cement mortar in the coring hole can meet the design requirements; through polishing coring hole surface after pouring for coring hole drill way surface and annex region are comparatively level and smooth, with the surface of laminating lining cutting.
Before roughening the coring hole, chiseling a wedge-shaped hole at one end of the orifice of the coring hole, wherein one end of the bottom of the wedge-shaped hole is communicated with the coring hole, the diameter of the bottom of the wedge-shaped hole is larger than that of the coring hole, and the diameter of the orifice of the wedge-shaped hole is larger than that of the coring hole and smaller than that of the bottom of the wedge-shaped hole; when the coring holes are subjected to galling treatment, the wedge-shaped holes are synchronously subjected to galling treatment.
By the scheme, the wedge-shaped hole is chiseled at one end of the hole opening of the coring hole, so that the embedding effect of plugging materials in the hole is increased, and the connection strength of the expanded cement mortar and the hole is improved.
The further proposal is that when the coring hole is cleaned, dust and sundries in the wedge-shaped hole and the coring hole are cleaned synchronously, and pressurized water is adopted to clean and wet-treat the wedge-shaped hole and the coring hole.
The further proposal is that the gelled material in the expanded cement mortarThe minimum dosage of the material is 350kg/m3The mixing amount of the expanding agent is 10 to 15 percent, and the water-gel ratio is less than or equal to 0.5; the expanded cement mortar is poured in a small amount of ways for many times in the pouring process.
The further scheme is that after pouring is finished, reinforcing steel bars are obliquely inserted from a feeding channel, and the expanded cement mortar in the core hole is stirred and vibrated.
The lining coring hole filling and pouring device can fill coring holes in lining arches and also can fill coring holes in lining arches.
The feeding port and the coring hole are eccentrically arranged, the feeding port comprises a first edge and a second edge, and projections of the first edge and the second edge on the cross section of the feeding port fall on two ends of the feeding channel in the extension direction; on the cross section of the coring hole, the projection of the first edge falls into the coring hole, and the projection of the second edge falls out of the coring hole.
By above-mentioned scheme it is visible, pan feeding mouth and coring hole eccentric arrangement make things convenient for expanded cement mortar to get into coring hole from the pan feeding mouth on the one hand, make things convenient for the operation of pouring of expanded cement mortar, on the other hand makes partial expanded cement mortar again can seal the effect of blockking of panel internal surface down, stops in coring hole, prevents that expanded cement mortar from falling.
Drawings
FIG. 1 is a block diagram of an embodiment of a lining coring hole filling and grouting apparatus of the present invention.
FIG. 2 is a block diagram of a prior art cored hole in a lining spandrel.
Fig. 3 is a structural view of wedge holes cut in the construction method of the present invention.
FIG. 4 is a structural diagram of the installation of the lining coring hole filling and pouring device in the construction method of the present invention.
FIG. 5 is a structural view illustrating the pouring of expanded cement mortar in the construction method according to the present invention.
FIG. 6 is a structural diagram of the filling and pouring device for removing the lining coring hole in the construction method of the present invention.
FIG. 7 is a view showing a structure of a core hole surface after polishing in the method of the present invention.
FIG. 8 shows a structure for filling and pouring the coring holes in the arch crown according to the construction method of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
Embodiment of filling and pouring device for lining core taking hole
Referring to fig. 1, the lining coring hole filling and pouring device provided by the embodiment can be installed around a lining coring hole to replace manual filling of the coring hole in the prior art, and the embodiment can also be used for filling coring holes on an arch shoulder and an arch crown.
The lining coring hole filling and pouring device provided by the embodiment comprises a sealing panel 1, a first baffle 2 and two second baffles 3. The middle part of the sealing panel 1 is provided with a rectangular feeding port 4, and the feeding port 4 penetrates through the thickness direction of the sealing panel 1. First baffle 2 and two second baffles 3 enclose to close and set up in the surface one side of closing panel 1 and be formed with triangular pan feeding passageway 5, pan feeding passageway 5 and pan feeding mouth 4 intercommunication, and the extending direction of pan feeding passageway 5 and the extending direction of pan feeding mouth 4 intersect with the acute angle. Specifically, the second baffle 3 is set to be a right triangle, the two second baffles 3 are respectively arranged at the left side and the right side of the feeding port 4, and the two second baffles 3 are arranged in parallel. The first baffle 2 is formed in a rectangular shape, the first baffle 2 is disposed between two second baffles 3, namely, on the opposite side of the feeding port 4, and the first baffle 2 extends obliquely outward from the outer surface of the closure panel 1 and intersects the surface of the closure panel 1 at a predetermined acute angle in the range of 50 ° to 70 °, preferably 64 ° in this embodiment. The lower part of first baffle 2 passes the thickness direction of sealing panel 1 and is connected with the border of sealing panel 1 internal surface for pan feeding passageway 5 and pan feeding mouth 4 smooth transition make things convenient for follow-up pouring expansion cement mortar 8 and insert the reinforcing bar of usefulness of vibrating.
In order to facilitate the mold removal, the feeding port 4 comprises three surrounding edges and an opening, the opening is in the same direction as the inlet of the feeding channel 5, and the three surrounding edges are respectively arranged corresponding to the three baffles. For the convenience of the following description, a peripheral edge opposite to the opening, i.e., a lower peripheral edge, is defined as a first edge 41, an imaginary edge of the opening is defined as a second edge 42, and projections of the first edge 41 and the second edge 42 on a cross section of the material inlet 4 fall on both ends of an extending direction of the material inlet channel 5, i.e., the first edge 41 and the second edge 42 are arranged opposite to each other in an inner surface of the opening closure panel 1.
In order to facilitate the fixed installation of the sealing panel 1 on the lining, the four corners of the sealing panel 1 are respectively provided with connecting parts 11, the connecting parts 11 are penetratingly provided with mounting holes 12, and the mounting holes 12 are located around the feeding port 4 to limit the tight connection of the fixed feeding port 4 and the coring hole 6. The connecting portion 11 of this embodiment is an ear seat, the ear seat protrudes from the side wall of the sealing panel 1, and the mounting hole 12 is a bolt hole, and the sealing panel 1 is fixed on the lining by a bolt.
The sealing panel 1 and the three baffles of the embodiment are all formed by welding thin iron plates, the lining is generally arched, the surface of the lining has a first radian, a sealing element can be arranged on one side of the inner surface of the sealing panel 1 in order to match the radian of the surface of the lining 9, the sealing element surrounds the periphery of the feeding port 4, and the sealing element is made of flexible materials, preferably rubber or geotextile. When this embodiment is installed, seal panel 1 extrusion sealing member for pan feeding mouth 4 all around be in encapsulated situation, prevent follow-up pouring expansion cement mortar in-process, take place the phenomenon that expansion cement mortar revealed. In order to facilitate demoulding, an opening is arranged above the feeding port 4 and is directly communicated with the outside of the sealing panel 1. When the embodiment is disassembled, all the bolts are disassembled, and then the embodiment is directly disassembled along the extending direction of the feeding port 4 (namely the thickness direction of the sealing panel 1).
Construction method first embodiment
Referring to fig. 2 to 7, in this embodiment, a core hole 6 on an arch shoulder is taken as an example to illustrate a construction method of a lining core hole filling and pouring device, the core hole 6 on the arch shoulder is in a horizontal state (or a downward inclination state, as shown in fig. 1, the diameter of the existing core hole 6 is 100mm, and the diameter of a hole bottom is equal to that of an orifice.
The construction method of the lining coring hole filling and pouring device in the embodiment comprises the following steps:
step one, a wedge-shaped hole 7 is drilled at one end of the orifice of the coring hole 6 in an expanding mode, the wedge-shaped hole 7 and the coring hole 6 are arranged coaxially, and one end of the bottom of the wedge-shaped hole 7 is communicated with the coring hole 6. The shaft section of the wedge-shaped hole 7 is isosceles trapezoid, the diameter of the bottom of the wedge-shaped hole 7 is larger than that of the coring hole 6, the diameter of the orifice of the wedge-shaped hole 7 is larger than that of the coring hole 6, and the diameter of the orifice of the wedge-shaped hole 7 is smaller than that of the bottom of the wedge-shaped hole 7.
And step two, adopting a hairbrush to perform galling treatment on the inner walls of the wedge-shaped hole 7 and the coring hole 6 so as to ensure the lap joint effect of the interface of the subsequently poured expanded cement mortar 8.
And step three, cleaning dust and sundries in the wedge-shaped hole 7 and the coring hole 6, and cleaning the wedge-shaped hole 7 and the coring hole 6 by adopting pressurized water and carrying out wet water treatment.
Step four, the lining coring hole filling and pouring device of the embodiment is vertically installed, so that a feeding port 4 of the lining coring hole filling and pouring device is communicated with a coring hole 6, and a feeding channel 5 of the lining coring hole filling and pouring device is positioned on the outer side of the coring hole 6. At this time, the feeding port 4 and the coring hole 6 are eccentrically arranged, on the cross section of the coring hole 6, the projection of the first edge 41 falls into the coring hole 6, preferably, the projection of the first edge 41 falls near the center line of the coring hole 6, namely, the projection of the first edge 41 is located at one point above or one point below the center line of the coring hole 6, the projection of the second edge 42 falls outside the wedge-shaped hole 7, so that the upper part of the orifice of the wedge-shaped hole 7 is communicated with the feeding channel 5, and the lower part of the orifice of the wedge-shaped hole 7 is blocked by the sealing panel 1 at the lower part of the feeding port 4, so as to limit or block the expansion cement mortar 8 subsequently poured into the coring hole 6 from flowing out of the hole, and ensure the plumpness and compactness of the expansion cement mortar 8 in the coring hole 6. When installing the lining cutting and coring hole and filling perfusion device, the bolt passes mounting hole 12 and the embedding lining cutting 9 of sealing panel 1 in, realizes that the lining cutting coring hole fills perfusion device fixed mounting, and sealing panel 1 extrudees the sealing member to the 9 directions of lining cutting this moment, even the 9 surfaces of lining cutting have certain radian, also can ensure that the sealing member is connected sealedly and seal between panel 1 and the lining cutting 9, inflation cement mortar 8 reveals when preventing follow-up pouring.
Pouring expanded cement mortar 8, wherein the expanded cement mortar 8 flows from the feeding channel 5Enters and flows into the wedge-shaped hole 7 and the coring hole 6 through the feeding port 4 to fill the wedge-shaped hole 7 and the coring hole 6. In order to ensure that the plumpness of fillers in the wedge-shaped hole 7 and the coring hole 6 reaches the standard, the casting of the expanded cement mortar 8 is generally performed fully, namely after the wedge-shaped hole 7 and the coring hole 6 are filled with the expanded cement mortar 8, the casting is continued until the feeding port 4 and the feeding channel 5 are filled with the expanded cement mortar 8. The physical property index of the expanded cement mortar 8 is in accordance with JC476-2001 'concrete expanding agent' building material industry standard, and specifically, the minimum dosage of the cementing material in the expanded cement mortar 8 is 350kg/m3The mixing amount of the expanding agent is 10 to 15 percent, and the water-gel ratio is less than or equal to 0.5. This embodiment uses the expansion cement mortar 8 of this ratio to fill coring hole 6, utilizes expansion cement mortar 8 not to take place the shrink at the hardening in-process volume, still slightly expands to guarantee that the filler hardens the back, keep higher plumpness and closely knit degree in coring hole 6 all the time. In the pouring process, the expanded cement mortar 8 is poured in a small amount of ways for many times until the whole hole is filled with the expanded cement mortar 8.
And step six, after pouring is finished, reinforcing steel bars with the diameter of 6.5mm can be obliquely inserted into the coring holes 6 from the feeding channel 5, and the expanded cement mortar 8 in the holes is stirred and vibrated to ensure that the compactness meets the requirement.
And seventhly, after the expanded cement mortar 8 is solidified and meets the preset strength requirement, removing the lining coring hole and filling the pouring device, firstly removing all bolts, and then separating the sealing panel 1 from the surface of the lining 9 along the axial direction of the coring hole 6.
And step eight, polishing the surface of the wedge-shaped hole 7 by using an angle grinder, namely polishing and removing the expanded cement mortar 8 at the original feeding channel 5 and the feeding port 4, so that the surface of the wedge-shaped hole 7 is flush with the surface of the lining 9.
And step nine, curing the poured expanded cement mortar 8 by adopting a watering and moisturizing curing mode, wherein the curing time is more than or equal to seven days.
Construction method second embodiment
Referring to fig. 8, in this embodiment, a core taking hole 6 on a vault is taken as an example to describe a construction method of a lining core taking hole filling and pouring device, the core taking hole 6 on the vault is in a vertically downward state, the diameter of the existing core taking hole 6 is 100mm, and the hole bottom diameter and the hole opening diameter are equal.
The steps of this embodiment are basically the same as those of the first embodiment of the construction method, and the same points are not described herein again, but the two embodiments are different in that:
in the fourth step, the lining coring hole filling and pouring device of the embodiment is transversely installed, so that the feeding port 4 of the lining coring hole filling and pouring device is communicated with the coring hole 6, and the feeding channel 5 of the lining coring hole filling and pouring device is positioned outside the coring hole 6. At this moment, pan feeding mouth 4 and coring hole 6 eccentric arrangement, on coring hole 6's cross section, the projection of first border 41 falls into near coring hole 6 central line, the projection of second border 42 falls outside wedge 7 for wedge 7's drill way left side and pan feeding passageway 5 intercommunication, and wedge 7's drill way right side is blockked by sealing panel 1 on pan feeding mouth 4 right side, flow outside to the hole with the restriction or block the follow-up inflation cement mortar 8 of pouring to coring hole 6, ensure plumpness and the closely knit degree of 8 of inflation cement mortar in coring hole 6.
In order to facilitate the outward flowing of the expanded cement mortar 8 along the feeding channel 5, a baffle (not shown in the figure) can be arranged at one end of the feeding channel 5, which is far away from the feeding port 4, and extends along the vertical direction, a pouring port of the expanded cement mortar 8 penetrates through the baffle and extends into the feeding channel 5 to pour the expanded cement mortar 8 into the coring hole 6, and at the moment, a small amount of the expanded cement mortar 8 flows outwards along the inclined feeding channel 5 under the action of the gravity of the expanded cement mortar 8 and is then intercepted by the baffle.
In conclusion, the sealing panel is arranged and used for installing and fixing the lining coring hole filling and pouring device at the coring hole; the core taking hole is communicated with the lining core taking hole through the feeding port, and the expanded cement mortar is poured from the feeding channel to the feeding port and the core taking hole through the feeding channel so as to fill the core taking hole; through setting up the pan feeding passageway, be favorable to conveniently pouring the in-process and carry out the drum operation of pounding to the downthehole expanded cement mortar of coring to further improve expanded cement mortar's plumpness and closely knit degree. The feeding channel and the feeding port are intersected at an acute angle, and when the coring hole with the downward or inclined downward hole opening is filled, the side wall of the feeding channel is used for blocking expanded cement mortar poured into the coring hole, so that the expanded cement mortar is prevented from falling before solidification, and the full pouring of the expanded cement mortar in the coring hole and the design requirement of compactness of the expanded cement mortar are favorably ensured.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, not limitations, and various changes and modifications may be made by those skilled in the art, without departing from the spirit and scope of the invention, and any changes, equivalents, improvements, etc. made within the spirit and scope of the present invention are intended to be embraced therein.
Claims (10)
1. The utility model provides a filling device is filled to lining cutting coring hole which characterized in that: including sealing panel and three baffle, seal the middle part of panel and set up the pan feeding mouth that runs through its thickness direction, it is three the baffle encloses to close seal the surface of panel and form the pan feeding passageway, the pan feeding passageway with pan feeding mouth intercommunication, the extending direction of pan feeding passageway with the extending direction of pan feeding mouth intersects with the acute angle, it is provided with a plurality of connecting portion to seal the panel, the mounting hole has been seted up with connecting portion run through, the mounting hole is located around the pan feeding mouth.
2. The lining coring hole filling and pouring device of claim 1, wherein:
wherein two the baffle is established respectively the both sides of pan feeding mouth, another the baffle with pan feeding mouth looks mutual disposition, with pan feeding mouth looks mutual disposition the baffle follow the surface of closing the panel outwards extends and with the acute angle is intersected to the closing panel.
3. The lining coring hole filling and pouring device of claim 1, wherein:
the sealing device is characterized in that a sealing element is arranged on the inner side of the sealing panel and located on the periphery of the feeding port, and the sealing element is made of a flexible material.
4. A construction method of a lining coring hole filling and pouring device is characterized in that: the method comprises the following steps:
roughening the coring holes;
cleaning the coring holes and carrying out wet water treatment;
installing a lining coring hole filling and pouring device, so that a feeding port of the lining coring hole filling and pouring device is communicated with the coring hole, and a feeding channel of the lining coring hole filling and pouring device is positioned outside the coring hole;
pouring expanded cement mortar into the coring hole through the feeding channel and the feeding port;
after the expanded cement mortar meets the preset strength requirement, removing the lining coring hole and filling the pouring device;
and polishing the surface of the coring hole.
5. The construction method according to claim 4, wherein:
before roughening the coring hole, chiseling a wedge-shaped hole at one end of an orifice of the coring hole, wherein one end of the bottom of the wedge-shaped hole is communicated with the coring hole, the diameter of the bottom of the wedge-shaped hole is larger than that of the coring hole, and the diameter of the orifice of the wedge-shaped hole is larger than that of the coring hole and smaller than that of the bottom of the wedge-shaped hole;
when the coring holes are subjected to galling treatment, the galling treatment is synchronously performed on the wedge-shaped holes.
6. The construction method according to claim 5, wherein:
when the coring hole is cleaned, dust and sundries in the wedge-shaped hole and the coring hole are cleaned synchronously, and the wedge-shaped hole and the coring hole are cleaned and subjected to wet water treatment by adopting pressurized water.
7. The construction method according to claim 4, wherein:
the minimum dosage of the cementing material in the expanded cement mortar is 350kg/m3The mixing amount of the expanding agent is 10 to 15 percent, and the water-gel ratio is less than or equal to 0.5;
the expanded cement mortar is poured in a small amount of ways for many times in the pouring process.
8. The construction method according to claim 4, wherein:
and after pouring is finished, the steel bars are obliquely inserted from the feeding channel, and the expanded cement mortar in the coring holes is stirred and vibrated.
9. The construction method according to any one of claims 4 to 8, wherein:
the lining coring hole filling and pouring device can fill coring holes in lining arch shoulders and can also fill coring holes in lining arch tops.
10. The construction method according to claim 9, wherein:
the feeding port comprises a first edge and a second edge, and projections of the first edge and the second edge on the cross section of the feeding port fall on two ends of the feeding channel in the extension direction;
the pan feeding mouth with core hole eccentric arrangement on the cross section of core hole, the projection on first border falls into in the core hole, the projection on second border falls outside the core hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110815806.6A CN113565465A (en) | 2021-07-19 | 2021-07-19 | Filling and pouring device for lining coring hole and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110815806.6A CN113565465A (en) | 2021-07-19 | 2021-07-19 | Filling and pouring device for lining coring hole and construction method thereof |
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| CN113565465A true CN113565465A (en) | 2021-10-29 |
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| CN202110815806.6A Pending CN113565465A (en) | 2021-07-19 | 2021-07-19 | Filling and pouring device for lining coring hole and construction method thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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