CN114910290B - Coring and coring hole plugging method - Google Patents
Coring and coring hole plugging method Download PDFInfo
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- CN114910290B CN114910290B CN202210355379.2A CN202210355379A CN114910290B CN 114910290 B CN114910290 B CN 114910290B CN 202210355379 A CN202210355379 A CN 202210355379A CN 114910290 B CN114910290 B CN 114910290B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses a coring and coring hole plugging method, which comprises the following steps: step one: determining the position of a coring hole, wherein an embedded steel bar and a steel strand are arranged in a space to be poured for pouring to form a concrete structure, the position of the coring hole, the steel bar and the steel strand are avoided, one end of the coring hole is a positioning end, which is close to the periphery of the space to be poured, and the other end is a stopping end, which extends to the inside of the space to be poured; step two: the guide component and the baffle are pre-buried, the guide component is pre-buried at the positioning end, the guide component is connected with the periphery of a space to be poured, the baffle is pre-buried at the stopping end, and a guide hole for guiding the drilling direction of drilling equipment is formed in the guide component; step three: pouring concrete into the space to be poured; step four: the drilling equipment is ensured to drill along the guiding direction of the guiding component, when the drill bit of the drilling equipment reaches the baffle plate, the drilling is stopped, the concrete core sample is taken out, the drilling coring operation is completed, and the performance of the concrete structure is not damaged.
Description
Technical Field
The invention is used in the field of concrete detection, and particularly relates to a coring and coring hole plugging method.
Background
At present, in order to alleviate the problem of uneven space-time distribution of water resources, more and more water delivery projects across the river basin are constructed, along with the larger and larger scale of the water delivery projects, the water delivery tunnels are longer and longer (up to tens of kilometers), are buried underground and deeper (up to thousands of meters), and the water pressure loads in and out of the water delivery tunnels are huge, so that the requirements on the quality of concrete of the lining of the water delivery tunnels are high, and the quality defects of the concrete are tightly controlled.
At present, the detection method for the concrete quality defect comprises a nondestructive detection method and a destructive detection method, wherein the nondestructive detection method comprises a rebound method, an ultrasonic rebound method and the like, the nondestructive detection method mainly estimates the concrete quality through rebound values or acoustic wave propagation speeds, and certain errors exist, so that the determination of the concrete quality defect lacks authority; the damage detection method is mainly a drilling coring detection method, namely, a concrete core sample is drilled on a concrete structure, and the quality level of the concrete can be accurately judged through observation of the surface of the core sample and quantitative detection of the mechanics and durability of the core sample.
However, when the damaged detection drilling holes are adopted, the steel bars or the steel stranded wires are easy to drill, so that the lining of the high-water pressure water delivery tunnel is damaged, and the mechanical property and the durability of the lining concrete are reduced.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides a coring and coring hole plugging method, which comprises the following steps:
step one: determining a coring hole position, wherein an embedded steel bar and a steel strand are arranged in a space to be poured for pouring to form a concrete structure, the coring hole position is arranged in a way of avoiding the steel bar and the steel strand, one end of the coring hole position is a positioning end, which is close to the periphery of the space to be poured, and the other end is a stopping end, which extends towards the inside of the space to be poured;
step two: the guide component and the baffle are pre-buried, the guide component is pre-buried at the positioning end, the guide component is connected with the periphery of the space to be poured, the baffle is pre-buried at the stopping end, the guide component is provided with a guide hole for guiding the drilling direction of drilling equipment, the guide hole of the guide component and the position of the coring hole are coaxially arranged, and the guide hole and the baffle are oppositely arranged;
step three: pouring concrete into the space to be poured;
step four: when coring is needed, drilling of the drilling equipment along the guiding direction of the guiding component is ensured, when the drill bit of the drilling equipment reaches the baffle plate, the drilling is stopped, the concrete core sample is taken out, and the drilling and coring operation is completed.
Preferably, the guide member has a thread on an outer circumferential surface thereof.
Preferably, the guide member is provided with a first positioning device, one end of the first positioning device is connected with the guide member, and the other end extends to the space to be poured outside the coring hole.
Preferably, the guide member is provided with a second positioning device, one end of the second positioning device is connected with the baffle, and the other end extends to the space to be poured outside the coring hole.
Preferably, a shield segment is arranged in the space to be poured, and the baffle is fixedly connected with the shield segment.
Preferably, the periphery of the guiding component is provided with a protruding edge, the protruding edge is arranged at one end, close to the periphery of the space to be poured, of the guiding component, and a reserved space for sealing the guiding component is arranged between the protruding edge and the periphery of the space to be poured.
Preferably, a template for pouring a concrete structure is arranged outside the space to be poured, a supporting component is arranged in the reserved space, one end of the supporting component is connected with the template, and the other end of the supporting component is connected with the guiding component through the convex edge.
Preferably, the coring and coring hole plugging method further comprises the steps of:
step five: after coring is completed, filling the positions of the coring holes, and tamping and compacting until the filler is flush with the pipe orifice of the guide component;
step six: installing a cover plate in the reserved space to block the pipe orifice of the guide component;
step seven: cleaning the surface of the cover plate, and arranging an anti-corrosion layer on the surface of the cover plate to enable the anti-corrosion layer to cover the cover plate and the outer surface of the concrete structure, filling the reserved space, and completing the blocking of the position of the coring hole.
Preferably, the anti-corrosion layer is formed by spraying epoxy polymer modified cement mortar.
Preferably, the filler comprises micro-expansive mortar or micro-expansive concrete.
One of the above technical solutions has at least one of the following advantages or beneficial effects: according to the coring and coring hole plugging method, the position of the coring hole is avoided from being arranged with the steel bars and the steel strands, the guide part is arranged at one end, close to the periphery of the space to be poured, of the coring hole, the drilling direction of the drilling equipment is guided, so that the perpendicularity of the drilling equipment in drilling is guaranteed, the baffle is arranged at one end, extending into the space to be poured, of the coring hole, the drilling equipment is prevented from drilling, the capacity of resisting high-pressure water at the position of the coring hole can be enhanced through the relative arrangement of the guide part and the baffle, water seepage at the position of the coring hole is prevented, pouring of the concrete structure is carried out after the guide part and the baffle are arranged, so that concrete is guaranteed to be arranged at the position of the coring hole, the coring and coring hole plugging method can enable the drilling equipment to avoid drilling of the steel bars and the steel strands in the concrete structure, the steel bars and the steel strands in the concrete structure are prevented from being damaged, the drilling of the concrete structure is not influenced, when a drill bit of the drilling equipment reaches the baffle, and an operator stops drilling the concrete core sample is taken out at the moment, and the coring operation of the concrete structure is completed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is one of the structural schematic diagrams of an embodiment of the present invention;
FIG. 2 is a second schematic diagram of an embodiment of the present invention;
FIG. 3 is a third schematic diagram of an embodiment of the present invention;
FIG. 4 is a schematic diagram of a structure of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the present invention, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present invention, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present invention, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the present invention, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the invention can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.
The embodiment of the invention provides a coring and coring hole plugging method, which comprises the following steps:
referring to fig. 1, step one: the method comprises the steps of determining a coring hole position 200, wherein a pre-buried steel bar and a steel strand 110 are arranged in a space to be poured 100 for pouring to form a concrete structure, the coring hole position 200 is arranged avoiding the steel bar and the steel strand 110, one end of the coring hole position 200 is a positioning end 210, which is close to the periphery of the space to be poured 100, and the other end is a stopping end 220, which extends to the inside of the space to be poured 100;
step two: referring to fig. 1, the guide member 300 and the baffle 400 are pre-buried, the guide member 300 is pre-buried at the positioning end 210, the guide member 300 is connected with the periphery of the space 100 to be poured, the baffle 400 is pre-buried at the stopping end 220, the guide member 300 is provided with a guide hole for guiding the drilling direction of the drilling equipment, the guide hole of the guide member 300 is ensured to be coaxially arranged with the coring hole position 200, and the guide hole is oppositely arranged with the baffle 400.
Step three: referring to fig. 2, concrete is poured into the space to be poured 100;
step four: referring to fig. 3, when coring is required, drilling of the drilling apparatus in the guide direction of the guide member 300 is ensured, and when the drill bit of the drilling apparatus reaches the barrier 400, the drilling is stopped, and the concrete core sample is taken out, completing the drilling coring operation.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the coring and coring hole plugging method adopts the guide member 300 to locate a drilled hole, the guide hole is coaxially arranged with the coring hole position 200, the perpendicularity of the drilling device during drilling is guaranteed, the drilling device is guaranteed to drill along the axial direction of the coring hole position 200, the drilling device avoids the steel bar and the steel strand 110 to drill holes, the steel bar and the steel strand 110 are prevented from being damaged, the strength of a concrete structure is prevented from being influenced, the baffle 400 can prevent the drilling device from continuously drilling, the drilling device is prevented from damaging other concrete structures, when the drill bit of the drilling device reaches the baffle 400, an operator stops drilling, at this time, a concrete core sample is taken out, namely, the coring work on the concrete structure is completed, the guide hole is relatively arranged with the baffle 400, the baffle 400 is guaranteed to block the drill bit, the relative arrangement of the guide hole and the baffle 400 is guaranteed to prevent water seepage from occurring under the condition of high water pressure, the coring and coring hole plugging method is carried out on the concrete structure after the guide member 300 and the baffle 400 are installed, the concrete structure is prevented from being damaged only at the position of the coring hole, the position, the concrete structure is prevented from being damaged, the quality of the subsequent coring and the concrete structure is prevented from being damaged, and the subsequent performance of the concrete structure is prevented from being damaged, and the subsequent performance is convenient to be detected.
Preferably, the baffle 400 is made of a metal material, and since the sound of the drill bit drilling the concrete is completely different from that of the drill metal, a significant abnormal sound is emitted when the drilling apparatus reaches the baffle 400 to prompt the operator to stop the drilling.
Preferably, referring to fig. 1, 2, 3 and 4, the guide member 300 is provided with threads 310 on an outer circumferential surface thereof, the threads 310 can reinforce the coupling degree of the guide member 300 and the poured concrete structure, and the threads 310 can extend the coupling surface of the guide member 300 and the poured concrete structure to prevent water seepage from occurring.
Referring to fig. 1, 2, 3 and 4, the guide member 300 is provided with a first positioning device 500, one end of the first positioning device 500 is connected with the guide member 300, and the other end extends to the space 100 to be poured outside the coring hole position 200, so that the guide member 300 is fixed in a concrete structure to avoid displacement.
Referring to fig. 1, 2, 3 and 4, the guide member 300 is provided with a second positioning device 600, one end of the second positioning device 600 is connected to the baffle 400, and the other end extends to the space 100 to be poured outside the coring hole position 200, so that the baffle 400 is fixed in the concrete structure to avoid displacement.
Referring to fig. 1, 2, 3 and 4, a shield segment 130 is disposed in the space to be poured 100, and a baffle 400 is fixedly connected with the shield segment 130 to avoid displacement of the baffle 400.
Preferably, referring to fig. 1, the outer circumference of the guide member 300 is provided with a protruding edge 320, the protruding edge 320 is provided at one end of the guide member 300 near the outer circumference of the space 100 to be poured, and a reserved space for closing the guide member 300 is provided between the protruding edge 320 and the outer circumference of the space 100 to be poured, so as to better seal the guide member 300.
Preferably, referring to fig. 1 and 2, a formwork 120 for casting a concrete structure is provided at the outside of the space to be cast 100, which can ensure stability of the concrete structure, a support member 700 is provided in the reserved space, one end of the support member 700 is connected to the formwork 120, and the other end is connected to the guide member 300 through a flange 320, so as to form a reserved space for closing the guide member 300.
The coring and coring hole plugging method further comprises the following steps:
referring to fig. 4, step five: after coring is completed, the coring hole position 200 is filled, and the core hole position 200 is inserted and tamped tightly until the filler is flush with the pipe orifice of the guide component 300, so that the mechanical property of the concrete structure after the core drilling is improved;
step six: after filling, the cover plate 800 is arranged in the reserved space to block the pipe orifice of the guide component 300, the cover plate 800 can enhance the high-pressure water resistance of the coring hole position 200 and prevent water seepage of the coring hole position, and the cover plate 800 is connected with the guide component 300 through the convex edge 320;
step seven: cleaning the surface of the cover plate 800, and arranging an anti-corrosion layer 900 on the surface of the cover plate 800, so that the anti-corrosion layer 900 covers the outer surfaces of the cover plate 800 and the concrete structure, and fills the reserved space to complete the plugging of the coring hole position 200.
Preferably, referring to fig. 1, the cover plate 800 and the guide member 300 may be coupled using bolts or welding.
Preferably, the anti-corrosion layer 900 is sprayed with epoxy polymer modified cement mortar to prevent corrosion of the cover plate 800.
As a preferred embodiment of the present invention, the filler includes micro-expansive mortar or micro-expansive concrete, and the micro-expansive mortar or micro-expansive concrete has a high bonding strength with the concrete structure to ensure mechanical and durability properties of the concrete structure.
In the description of the present specification, reference to the terms "example," "embodiment," or "some embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The present invention is, of course, not limited to the above-described embodiments, and one skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and these equivalent modifications or substitutions are intended to be included in the scope of the present invention as defined in the claims.
Claims (9)
1. The coring and coring hole plugging method is characterized by comprising the following steps:
step one: determining the position of a coring hole of a high-pressure water delivery tunnel, wherein a space to be poured for pouring to form a concrete structure is internally provided with pre-buried steel bars and steel strands, the position of the coring hole is avoided from the steel bars and the steel strands, one end of the position of the coring hole is a positioning end, which is close to the periphery of the space to be poured, and the other end of the position of the coring hole is a stopping end, which extends to the inside of the space to be poured;
step two: the guide component and the baffle are pre-buried, the guide component is pre-buried at the positioning end, the guide component is connected with the periphery of the space to be poured, the baffle is pre-buried at the stopping end, the guide component is provided with a guide hole for guiding the drilling direction of drilling equipment, the guide hole of the guide component and the position of the coring hole are coaxially arranged, and the guide hole and the baffle are oppositely arranged;
step three: pouring concrete into the space to be poured;
step four: when coring is needed, drilling of the drilling equipment along the guiding direction of the guiding component is ensured, when a drill bit of the drilling equipment reaches the baffle plate, the drilling is stopped, a concrete core sample is taken out, and the drilling and coring operation is completed;
step five: after coring is completed, filling the positions of the coring holes, and tamping until the filling is flush with the pipe orifice of the guide component, wherein the periphery of the guide component is provided with a convex edge, the convex edge is arranged at one end, close to the periphery of the space to be poured, of the guide component, and a reserved space for sealing the guide component is arranged between the convex edge and the periphery of the space to be poured;
step six: and installing a cover plate in the reserved space to block the pipe orifice of the guide component.
2. The coring and coring aperture plugging method of claim 1, wherein: the outer peripheral surface of the guide member is provided with threads.
3. The coring and coring aperture plugging method of claim 1, wherein: the guide part is provided with a first positioning device, one end of the first positioning device is connected with the guide part, and the other end extends to the space to be poured outside the coring hole.
4. The coring and coring aperture plugging method of claim 1, wherein: the guide part is provided with a second positioning device, one end of the second positioning device is connected with the baffle, and the other end extends to the space to be poured outside the coring hole.
5. The coring and coring aperture plugging method of claim 1, wherein: and a shield segment is arranged in the space to be poured, and the baffle is fixedly connected with the shield segment.
6. The coring and coring aperture plugging method of claim 1, wherein: the outside in space of waiting to pour is equipped with the template that is used for pouring concrete structure, be equipped with supporting part in the headspace, supporting part's one end with the template links to each other, and the other end passes through protruding edge with guide part links to each other.
7. The method of coring and coring aperture blocking as set forth in claim 6, further comprising the steps of:
step seven: cleaning the surface of the cover plate, and arranging an anti-corrosion layer on the surface of the cover plate to enable the anti-corrosion layer to cover the cover plate and the outer surface of the concrete structure, filling the reserved space, and completing the blocking of the position of the coring hole.
8. A method of coring and coring aperture blocking as set forth in claim 7 wherein: the anti-corrosion layer is formed by spraying epoxy polymer modified cement mortar.
9. A method of coring and coring aperture blocking as set forth in claim 7 wherein: the filler comprises micro-expansive mortar or micro-expansive concrete.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210355379.2A CN114910290B (en) | 2022-04-02 | 2022-04-02 | Coring and coring hole plugging method |
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| CN202210355379.2A CN114910290B (en) | 2022-04-02 | 2022-04-02 | Coring and coring hole plugging method |
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| CN114910290A CN114910290A (en) | 2022-08-16 |
| CN114910290B true CN114910290B (en) | 2023-05-05 |
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| CN118010410A (en) * | 2024-04-10 | 2024-05-10 | 四川蜀工公路工程试验检测有限公司 | Concrete drilling core machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201250397Y (en) * | 2008-09-03 | 2009-06-03 | 安徽省水利水电勘测设计院 | Concrete anti-seepage wall with quality inspection coring pipes |
| CN105003285B (en) * | 2015-06-12 | 2017-04-19 | 中国水利水电第三工程局有限公司 | Nest sound-concentrating device for grouting and embedding of reinforced concrete works |
| CN105672882A (en) * | 2016-02-26 | 2016-06-15 | 中国一冶集团有限公司 | Photovoltaic support pile foundation group locating and drilling device and drilling method |
| CN105625721B (en) * | 2016-03-10 | 2017-08-01 | 四川华西安装工程有限公司 | The boring and coring method and its servicing unit in concrete lamp hole |
| CN107269300B (en) * | 2017-08-15 | 2023-10-27 | 中国水利水电第五工程局有限公司 | Guiding and positioning device for pre-buried grouting drilling on needle beam trolley |
| CN112627242A (en) * | 2019-10-29 | 2021-04-09 | 健研检测集团有限公司 | Core drilling detection method for cast-in-place concrete pile and auxiliary device thereof |
| CN113529814A (en) * | 2021-07-07 | 2021-10-22 | 上海市基础工程集团有限公司 | Method for detecting wall quality of hectometer-level ultra-deep underground continuous wall by drilling and coring |
| CN113931239B (en) * | 2021-10-29 | 2023-08-25 | 山东省交通规划设计院集团有限公司 | Device and method for detecting pile disc quality of bridge extrusion-expansion support disc |
| CN113914902A (en) * | 2021-11-19 | 2022-01-11 | 中铁隧道勘察设计研究院有限公司 | Embedded guide pipe assembly suitable for extra-high water pressure tunnel curtain grouting and embedding method |
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