CN111254830A - Rapid treatment method for bridge pier pull rod hole - Google Patents
Rapid treatment method for bridge pier pull rod hole Download PDFInfo
- Publication number
- CN111254830A CN111254830A CN201911132307.6A CN201911132307A CN111254830A CN 111254830 A CN111254830 A CN 111254830A CN 201911132307 A CN201911132307 A CN 201911132307A CN 111254830 A CN111254830 A CN 111254830A
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- CN
- China
- Prior art keywords
- portland cement
- glue
- pull rod
- rod hole
- ordinary portland
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a rapid processing method of a bridge pier pull rod hole, which comprises the following specific operations: after the pull rod is pulled out, cutting off the sleeve exposed out of the surface of the concrete structure; picking the concrete with a ring cutting drill to the inner side of the surface of the concrete, wherein the diameter of the concrete is not less than 50 mm; and then cleaning sundries in the pull rod hole and the sleeve, and after cement mortar for filling the hole is injected into the pull rod hole, performing surface finishing treatment. The invention effectively solves the problems of pull rod hole plugging and uniform color, has high appearance quality and good waterproofness, and simultaneously has low construction cost, convenient operation and high working efficiency.
Description
Technical Field
The invention belongs to the technical field of bridge construction, and particularly relates to a rapid processing method for a bridge pier pull rod hole.
Background
In order to ensure the appearance size of the pier, the formwork does not run or expand in the concrete construction process, a pull rod is usually adopted for fixing in formwork reinforcing construction, after the pull rod is removed, a hole can be reserved in a concrete structure, and in order to ensure the appearance quality and the waterproof requirement of the structure, a pull rod hole needs to be filled and plugged.
Disclosure of Invention
In view of the above, the present invention provides a method for rapidly processing a bridge pier tie rod hole, which aims to overcome the defects in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a rapid processing method for a bridge pier pull rod hole comprises the following steps:
s1, cutting off the sleeve exposed out of the surface of the concrete structure after the pull rod is pulled out;
s2, using a cutting drill to pick the concrete into the surface of the concrete, wherein the thickness of the concrete is not less than 50 mm;
s3, cleaning sundries in the pull rod hole and the sleeve;
s4, sprinkling water to the inner and outer sides of the pull rod hole for wetting treatment;
s5, cement mortar for filling the hole is injected into the pull rod hole, and a hole for plastering is reserved at the hole opening;
s6, comparing the color of the concrete around the pull rod hole with a pre-manufactured mortar palette, and preparing cement mortar for plastering according to the proportion of the mortar palette corresponding to the sample;
and S7, performing surface finishing treatment on the pull rod hole by using the surface finishing cement mortar prepared in the step.
Further, the sample ratio on the mortar palette is respectively:
(1) ordinary portland cement: white portland cement: glue 107: water 1.0:7.0:1.2: 1.2;
(2) ordinary portland cement: white portland cement: glue 107: water 1.5:6.5:1.2: 1.2;
(3) ordinary portland cement: white portland cement: glue 107: 2.0:6.0:1.2: 1.2;
(4) ordinary portland cement: white portland cement: glue 107: 2.1:5.9:1.2
(5) Ordinary portland cement: white portland cement: glue 107: 2.3:5.7:1.2: 1.2;
(6) ordinary portland cement: white portland cement: glue 107: 2.4:5.6:1.2: 1.2;
(7) ordinary portland cement: white portland cement: glue 107: water 2.5:5.5:1.2: 1.2;
(8) ordinary portland cement: white portland cement: glue 107: 2.7:5.3:1.2: 1.2;
(9) ordinary portland cement: white portland cement: glue 107: 2.8:5.2:1.2: 1.2;
(10) ordinary portland cement: white portland cement: glue 107: 2.9:5.1:1.2: 1.2;
(11) ordinary portland cement: white portland cement: glue 107: water 3.0:5.0:1.2: 1.2;
(12) ordinary portland cement: white portland cement: glue 107: water 3.1:4.9:1.2: 1.2;
(13) ordinary portland cement: white portland cement: glue 107: water 3.2:4.8:1.2: 1.2;
(14) ordinary portland cement: white portland cement: glue 107: water 3.3:4.7:1.2: 1.2;
(15) ordinary portland cement: white portland cement: glue 107: water 3.6:4.4:1.2: 1.2;
(16) ordinary portland cement: white portland cement: glue 107: water-4.0: 4.0:1.2: 1.2.
Furthermore, the ring cutting drill adopts a handheld electric ring cutting drill.
Furthermore, when cleaning the pull rod hole and impurities in the sleeve, a long-barrel dust blowing gun is adopted for blowing.
Further, in step S5, a manual grouting gun is used for grouting into the draw-bar hole.
Further, in step S5, the depth of the hole for plastering reserved in the opening of the draw bar is 4-5 mm.
Compared with the prior art, the invention has the following advantages:
the cement mortar for plastering does not contain an expanding agent, adopts a plurality of proper silicate cement proportions, and is added with glue and water in proper proportion, thereby being more beneficial to the plastering treatment of the pull rod hole, the cement mortar for plastering is better combined with the concrete (pier body concrete) on the inner wall of the hole, the cement mortar can be fully bonded together without cracks, and the method effectively ensures the appearance quality and the waterproof performance requirements.
The mortar palette of preparation in advance has almost covered on-the-spot pier shaft colour difference scope, and during site operation, can confirm the component proportion fast through the sample on the contrast palette, and the efficiency of construction is high, and the effectual pull rod hole shutoff of having solved and the unified problem of colour.
In conclusion, the method provided by the invention has the advantages of low construction cost, convenience in operation, high working efficiency, high appearance quality after the pull rod hole is filled and blocked, and good waterproofness.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated for convenience in describing the present invention, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following examples.
A rapid processing method for a bridge pier pull rod hole comprises the following steps:
s1, cutting off the sleeve exposed out of the surface of the concrete structure after the pull rod is pulled out;
s2, using a cutting drill to pick the concrete into the surface of the concrete, wherein the thickness of the concrete is not less than 50 mm; the circular cutting drill generally adopts a handheld electric circular cutting drill;
s3, cleaning sundries in the pull rod hole and the sleeve; when cleaning the pull rod hole and impurities in the sleeve, a long-barrel dust blowing gun is adopted for blowing;
s4, spraying water to the inside and the periphery of the pull rod hole for wetting treatment, so that the expanded cement mortar and the pier body concrete are better bonded together to form a compact structure;
s5, injecting cement mortar for filling holes into the pull rod holes (the consistency is preferably 60-80mm, the setting time is about 3-5 hours), and reserving holes for plastering at the openings;
s6, comparing the color of the concrete around the pull rod hole with a pre-manufactured mortar palette, and preparing cement mortar for plastering according to the proportion of the mortar palette corresponding to the sample;
and S7, performing surface finishing treatment on the pull rod hole by using the surface finishing cement mortar prepared in the step.
The cement mortar for plastering does not contain an expanding agent, tests and practical use prove that the cement mortar is prepared by adopting a plurality of proper portland cement proportions and adding glue and water in a proper proportion, thereby being more beneficial to the plastering treatment of the pull rod hole, the cement mortar for plastering is better combined with the concrete (pier body concrete) on the inner wall of the hole, the cement mortar can be fully bonded together, and no crack exists.
In the invention, the color of the concrete around the pull rod hole is compared with the color of the blocking palette of the pier body pull rod hole, and the color of the plastering cement paste on the pull rod hole is consistent with the color of the plastering at the pull rod hole.
In an optional embodiment, in order to prevent the plastering material from being adhered to the surface of the existing concrete, a PVC transparent plastic hard rubber sheet with a round hole in the middle can be adhered to the surface of the concrete around the pull rod hole before plastering, and the concrete curing agent is sprayed in time after finishing for curing.
In the step S5, a manual grouting gun is adopted when grouting is carried out in the pull rod hole; the depth of the hole for plastering reserved in the orifice of the pull rod is 4-5 mm.
Be equipped with the multiunit sample on the above-mentioned mortar palette of having made in advance, specific ratio is:
(1) ordinary portland cement: white portland cement: glue 107: water 1.0:7.0:1.2: 1.2;
(2) ordinary portland cement: white portland cement: glue 107: water 1.5:6.5:1.2: 1.2;
(3) ordinary portland cement: white portland cement: glue 107: 2.0:6.0:1.2: 1.2;
(4) ordinary portland cement: white portland cement: glue 107: 2.1:5.9:1.2
(5) Ordinary portland cement: white portland cement: glue 107: 2.3:5.7:1.2: 1.2;
(6) ordinary portland cement: white portland cement: glue 107: 2.4:5.6:1.2: 1.2;
(7) ordinary portland cement: white portland cement: glue 107: water 2.5:5.5:1.2: 1.2;
(8) ordinary portland cement: white portland cement: glue 107: 2.7:5.3:1.2: 1.2;
(9) ordinary portland cement: white portland cement: glue 107: 2.8:5.2:1.2: 1.2;
(10) ordinary portland cement: white portland cement: glue 107: 2.9:5.1:1.2: 1.2;
(11) ordinary portland cement: white portland cement: glue 107: water 3.0:5.0:1.2: 1.2;
(12) ordinary portland cement: white portland cement: glue 107: water 3.1:4.9:1.2: 1.2;
(13) ordinary portland cement: white portland cement: glue 107: water 3.2:4.8:1.2: 1.2;
(14) ordinary portland cement: white portland cement: glue 107: water 3.3:4.7:1.2: 1.2;
(15) ordinary portland cement: white portland cement: glue 107: water 3.6:4.4:1.2: 1.2;
(16) ordinary portland cement: white portland cement: glue 107: water-4.0: 4.0:1.2: 1.2.
In an optional embodiment, the concrete component ratio of the cement mortar for filling the hole is as follows: swelling agent: cement: sand: water 1:10: 20: 3.5.
by adding the expanding agent into the cement mortar and blending according to the specific proportion, the crack problem caused by concrete shrinkage is effectively compensated, the compactness of the concrete is effectively ensured, and the anti-leakage effect of the concrete is improved.
The invention effectively solves the problems of pull rod hole plugging and uniform color, has high appearance quality and good waterproofness, and simultaneously has low construction cost, convenient operation and high working efficiency.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (6)
1. A rapid processing method for a bridge pier pull rod hole is characterized by comprising the following steps:
s1, cutting off the sleeve exposed out of the surface of the concrete structure after the pull rod is pulled out;
s2, using a cutting drill to pick the concrete into the surface of the concrete, wherein the thickness of the concrete is not less than 50 mm;
s3, cleaning sundries in the pull rod hole and the sleeve;
s4, sprinkling water to the inner and outer sides of the pull rod hole for wetting treatment;
s5, cement mortar for filling the hole is injected into the pull rod hole, and a hole for plastering is reserved at the hole opening;
s6, comparing the color of the concrete around the pull rod hole with a pre-manufactured mortar palette, and preparing cement mortar for plastering according to the proportion of the mortar palette corresponding to the sample;
and S7, performing surface finishing treatment on the pull rod hole by using the surface finishing cement mortar prepared in the step.
2. The rapid treatment method for the pier tie rod hole according to claim 1, wherein the rapid treatment method comprises the following steps: the sample proportion on the mortar palette is respectively as follows:
(1) ordinary portland cement: white portland cement: glue 107: water 1.0:7.0:1.2: 1.2;
(2) ordinary portland cement: white portland cement: glue 107: water 1.5:6.5:1.2: 1.2;
(3) ordinary portland cement: white portland cement: glue 107: 2.0:6.0:1.2: 1.2;
(4) ordinary portland cement: white portland cement: glue 107: 2.1:5.9:1.2
(5) Ordinary portland cement: white portland cement: glue 107: 2.3:5.7:1.2: 1.2;
(6) ordinary portland cement: white portland cement: glue 107: 2.4:5.6:1.2: 1.2;
(7) ordinary portland cement: white portland cement: glue 107: water 2.5:5.5:1.2: 1.2;
(8) ordinary portland cement: white portland cement: glue 107: 2.7:5.3:1.2: 1.2;
(9) ordinary portland cement: white portland cement: glue 107: 2.8:5.2:1.2: 1.2;
(10) ordinary portland cement: white portland cement: glue 107: 2.9:5.1:1.2: 1.2;
(11) ordinary portland cement: white portland cement: glue 107: water 3.0:5.0:1.2: 1.2;
(12) ordinary portland cement: white portland cement: glue 107: water 3.1:4.9:1.2: 1.2;
(13) ordinary portland cement: white portland cement: glue 107: water 3.2:4.8:1.2: 1.2;
(14) ordinary portland cement: white portland cement: glue 107: water 3.3:4.7:1.2: 1.2;
(15) ordinary portland cement: white portland cement: glue 107: water 3.6:4.4:1.2: 1.2;
(16) ordinary portland cement: white portland cement: glue 107: water-4.0: 4.0:1.2: 1.2.
3. The rapid treatment method for the pier tie rod hole according to claim 1, wherein the rapid treatment method comprises the following steps: the ring cutting drill adopts a hand-held electric ring cutting drill.
4. The rapid treatment method for the pier tie rod hole according to claim 1, wherein the rapid treatment method comprises the following steps: when cleaning the pull rod hole and impurities in the sleeve, a long cylinder dust blowing gun is adopted for blowing.
5. The rapid treatment method for the pier tie rod hole according to claim 1, wherein the rapid treatment method comprises the following steps: in step S5, a manual grouting gun is used to perform grouting into the draw-bar hole.
6. The rapid treatment method for the pier tie rod hole according to claim 1, wherein the rapid treatment method comprises the following steps: in step S5, the depth of the hole for plastering reserved in the pull rod hole is 4-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911132307.6A CN111254830A (en) | 2019-11-19 | 2019-11-19 | Rapid treatment method for bridge pier pull rod hole |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911132307.6A CN111254830A (en) | 2019-11-19 | 2019-11-19 | Rapid treatment method for bridge pier pull rod hole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111910507A (en) * | 2020-07-02 | 2020-11-10 | 中铁六局集团有限公司 | Construction method for high-speed railway pier column pull rod hole plugging and appearance quality control |
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| CN111910507A (en) * | 2020-07-02 | 2020-11-10 | 中铁六局集团有限公司 | Construction method for high-speed railway pier column pull rod hole plugging and appearance quality control |
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