CN101144265A - Mass concrete structure deep pore reinforced construction method - Google Patents
Mass concrete structure deep pore reinforced construction method Download PDFInfo
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- CN101144265A CN101144265A CNA2007100536108A CN200710053610A CN101144265A CN 101144265 A CN101144265 A CN 101144265A CN A2007100536108 A CNA2007100536108 A CN A2007100536108A CN 200710053610 A CN200710053610 A CN 200710053610A CN 101144265 A CN101144265 A CN 101144265A
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Abstract
The present invention discloses a construction method for planting reinforcement bars in deep holes by a massive concrete structure, and relates to a construction method for the reinforcement and compensation project of the massive concrete structure. The utility model has the embodiment that: firstly, the plane position for embedding the reinforcing steel bars is determined in accordance with the design requirement, holes are drilled by a drilling machine, the hole wall is smoothed and the holes are cleaned, and the two pre-embedded reinforcing steel bars, an infusion tube and a centering supporting frame are bond, an outer ring positioning ring is suited outside, the bond reinforcing steel bars are arranged inside the drilling holes, and the reinforcing steel bars and the centering supporting frame are contacted with a bottom hole, the grouting material is perfused into the drilling holes through the infusion tube by using an injection pump; in the injection process, the infusion tube is extracted out upward gradually, the infusion is operated continuously until the hole is fully filled, the reinforcing steel bars can be disturbed within 24 hours, and the bar planting is completed after 48 hours. The present invention can improve the strength of the massive concrete structure without changing the former section size of the concrete structure, and the additionally arranged reinforcing steel bars are firmly connected with the former structure. The invention method is simple, and has strong practicability and lower construction cost; the continuous pressure perfusion is adopted to ensure that the grouting material is compact without holes.
Description
Technical field
The present invention relates to a kind of large volume concrete structural reinforcement and strengthening engineering construction method.
Background technology
A lot of large volume concrete structurals, sluice pier excessively as dam, the abutment pier of bridge etc., owing to the increase of service life or the reasons such as change of function of use, need reinforcement, general reinforcing is to increase its cross-sectional area with enhancing intensity, but to many engineerings, often need be under the prerequisite that does not change the original structure cross sectional dimensions, make the intensity of structure obtain by a relatively large margin raising.When increasing for the dam that builds up and come into operation, in order not influence original discharge area, when spillway pier is increased transformation, can not adopt the method that enlarges the gate pier section area to improve its bulk strength, because original water cross section of crossing is narrowed down.Need to adopt so a kind of on the basis that does not influence the flood spillway breadth of section, other method that the bulk strength of gate pier is improved.Increase on the original structure body and bury reinforcing bar underground, but do not change the original sectional dimension of concrete structure, and the intensity of large volume concrete structural is improved, the method can abbreviate mass concrete structure deep pore reinforced reinforcement and strengthening method as.Must not produce original structure when deep pore reinforced key is construction and destroy, and accomplish that reinforcing bar and the original structure set up can effectively connect as one, and stressed jointly.Reach above purpose, effective job practices is very crucial.
Summary of the invention
The objective of the invention is at above-mentioned present situation, aim to provide in the deep pore reinforced process of a kind of assurance and do not destroy original structure, the reinforcing bar of setting up can reliably be connected with original concrete, the mass concrete structure deep pore reinforced construction method that its intensity is improved.
The implementation of the object of the invention is, mass concrete structure deep pore reinforced construction method carries out according to the following steps:
1) earlier determine to bury underground the plan-position of reinforcing bar according to designing requirement, with auger boring, card boring verticality is not less than 0.5%, does not damage the reinforcing bar in the original structure in the boring procedure,
2) hole wall hacking and clear hole,
3) two reinforcing bars 7 will burying underground in advance, intrusion pipe 10 and by three with reinforcing bar be welded to medium-height trestle 6 colligations, two reinforcing bar 7 bottoms grow more than the 20cm than intrusion pipe 10 during colligation, and reinforcing bar is with respect to not moving mutually medium-height trestle 6 and outer ring locating ring 8, and intrusion pipe should be able to be extracted out, its overcoat outer ring locating ring 10, the external diameter of outer ring locating ring 10 is less than the internal diameter of borehole wall
4) lashings and outer ring locating ring 8 are placed in the boring, reinforcing bar 7 with medium-height trestle 6 is contacted with at the bottom of the hole, in boring, pour into pouring material with grouting pump by intrusion pipe 10, progressively upwards extract intrusion pipe in the filling process out, during extraction, should keep intrusion pipe discharging opening about 1000 ± 10mm under pouring material slurry face, continous pouring is till filling whole hole
5) must not the disturbance reinforcing bar in 24 hours, bar planting is finished after 48 hours.
The present invention buries reinforcing bar underground on the original structure body, can not change the original sectional dimension of concrete structure, and the intensity of large volume concrete structural is improved.The present invention does not produce destruction to original structure, and reinforcing bar of setting up and original structure can effectively connect as one, and stressed jointly.The inventive method is simple, and practicality is stronger; Adopt common apparatus and special pouring material, construction cost is lower; The perfusion of employing continuous pressure can guarantee to pour into closely knit no hole.
Description of drawings
Fig. 1 is drill bit and drilling tool connection layout
Fig. 2 reinforcing bar and intrusion pipe cross-sectional view
Fig. 3 reinforcing bar and intrusion pipe longitudinal section
The specific embodiment
After the present invention determines the horizontal level of bar planting point earlier according to designing requirement, XY-150 engineering exploration rig is moved to the position, hole, adjust the horizontal and vertical position of rig with the three-dimensional laser position indicator, the plumb position must be adjusted respectively from two vertical elevation of rig, after confirming that rig is in level and plumb position fully, borer frame is firmly fixed with bolt.Adopt as shown in Figure 1 drill bit and drilling tool boring, borer drill rod 5 is connected with core barrel 3 by core barrel head 4 among the figure, and diamond bit 1 is connected with core barrel 3 by reamer 2.The effect of reamer 2 is the uniformity that keep the aperture, and core barrel 3 joint lengths are respectively 300mm, 1000mm and 2000mm, and along with the increase of drilling depth, basket is pressed 300mm, 1000mm, 3000mm to 5000mm extends, and connects with core barrel head 4 therebetween.For the verticality that guarantees to hole, when drilling depth during greater than 5 meters, total length after basket connects must not be less than 4000mm, bore when being deep to 2 meters in the boring procedure, making a hole shaft declivity with ZQ-1 type PORE SIZE APPARATUS FOR detects, every repetition measurement of 5 meters works,, each detection back hole deviation rate needs the corresponding adjustment of rig do is retightened then then if having surpassed 0.5%.Hole and with ZC-1 type hole wall hacking device hole wall is made hacking to the prescribed depth and handle, make the hole wall needn't be too smooth, with submersible pump thin slag and open fire in the hole are blotted then.
With reference to Fig. 2, with two reinforcing bars 7 and intrusion pipe 10 colligations of burying underground in advance, is that the reinforcing bar of 10mm be welded by three with diameter to medium-height trestle 6, its overcoat outer ring locating ring 8, two reinforcing bar 7 bottoms grow more than the 20cm than intrusion pipe 10 during colligation, should make reinforcing bar with respect to can not moving mutually, and intrusion pipe should be able to be extracted out to medium-height trestle 6 and outer ring locating ring 8.Reinforcing bar that colligation is good and intrusion pipe are put into the hole wall 9 of boring.
With reference to Fig. 3, lashings and outer ring locating ring 8 are placed in the boring, reinforcing bar 7 with medium-height trestle 6 is contacted with at the bottom of the hole, because two reinforcing bar 7 bottoms grow more than the 20cm than intrusion pipe 10 during colligation, intrusion pipe discharging opening about 20cm at the bottom of the hole then, in the hole, pour into the inorganic pouring material of ICG-1 type with JZB-2 type grouting pump by intrusion pipe, progressively upwards extract intrusion pipe in the filling process out, but the intrusion pipe discharging opening should remain on about 1000mm under the inorganic pouring material slurry face, and so continous pouring is till filling inorganic pouring material with whole hole.Must not the disturbance reinforcing bar in 24 hours after perfusion is finished, bar planting is finished after 48 hours.
Claims (1)
1. mass concrete structure deep pore reinforced construction method is characterized in that carrying out according to the following steps:
1) earlier determine to bury underground the plan-position of reinforcing bar according to designing requirement, with auger boring, the boring verticality is not less than 0.5%, does not damage the reinforcing bar in the original structure in the boring procedure,
2) hole wall hacking and clear hole,
3) two reinforcing bars (7) that will bury underground in advance, intrusion pipe (10) and by three with reinforcing bar be welded to medium-height trestle (6) colligation, two reinforcing bars (7) bottom grows more than the 20cm than intrusion pipe (10) during colligation, and reinforcing bar is with respect to not moving mutually medium-height trestle (6) and outer ring locating ring (8), and intrusion pipe should be able to be extracted out, its overcoat outer ring locating ring (10), the external diameter of outer ring locating ring (10) is less than the internal diameter of borehole wall
4) lashings and outer ring locating ring (8) are placed in the boring, reinforcing bar (7) contacts with at the bottom of the hole with medium-height trestle (6), in boring, pour into pouring material with grouting pump by intrusion pipe (10), progressively upwards extract intrusion pipe in the filling process out, during extraction, should keep intrusion pipe discharging opening 1000 ± 10mm under pouring material slurry face, continous pouring is till filling whole hole
5) must not the disturbance reinforcing bar in 24 hours, bar planting is finished after 48 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710053610A CN100596318C (en) | 2007-10-23 | 2007-10-23 | Mass concrete structure deep pore reinforced construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710053610A CN100596318C (en) | 2007-10-23 | 2007-10-23 | Mass concrete structure deep pore reinforced construction method |
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| Publication Number | Publication Date |
|---|---|
| CN101144265A true CN101144265A (en) | 2008-03-19 |
| CN100596318C CN100596318C (en) | 2010-03-31 |
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| CN200710053610A Active CN100596318C (en) | 2007-10-23 | 2007-10-23 | Mass concrete structure deep pore reinforced construction method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565931B (en) * | 2009-05-27 | 2011-01-05 | 重庆市勘测院 | Cast in-situ piling pile reinforcement bridge pier structure and construction method |
| CN101748899B (en) * | 2010-01-14 | 2011-03-30 | 中天建设集团有限公司 | Method for pore forming by embedding assistant bonded rebar in reinforced concrete structure |
| CN102071645A (en) * | 2010-12-31 | 2011-05-25 | 中铁大桥局集团有限公司 | Bridge bored pile hole wall opening protection method |
| CN102704685A (en) * | 2012-05-23 | 2012-10-03 | 中国建筑第二工程局有限公司 | Concrete pouring blanking quick insertion pipe and use method thereof |
| CN102962872A (en) * | 2012-11-22 | 2013-03-13 | 苏州皇家整体住宅系统股份有限公司 | Laminated wood embedded steel bar construction technology |
| CN103015469A (en) * | 2012-11-20 | 2013-04-03 | 中国石油天然气集团公司 | Bar planting technique |
| CN110683451A (en) * | 2018-07-06 | 2020-01-14 | 株式会社日立大厦系统 | Elevator installation device |
| CN112627251A (en) * | 2020-12-30 | 2021-04-09 | 中国化学工程第十六建设有限公司 | Deep hole bar planting construction method for reinforced concrete structure |
| CN115522484A (en) * | 2022-09-30 | 2022-12-27 | 杭州鑫固建筑特种技术有限公司 | Secondary reinforcing bar planting improvement method |
-
2007
- 2007-10-23 CN CN200710053610A patent/CN100596318C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565931B (en) * | 2009-05-27 | 2011-01-05 | 重庆市勘测院 | Cast in-situ piling pile reinforcement bridge pier structure and construction method |
| CN101748899B (en) * | 2010-01-14 | 2011-03-30 | 中天建设集团有限公司 | Method for pore forming by embedding assistant bonded rebar in reinforced concrete structure |
| CN102071645A (en) * | 2010-12-31 | 2011-05-25 | 中铁大桥局集团有限公司 | Bridge bored pile hole wall opening protection method |
| CN102071645B (en) * | 2010-12-31 | 2012-10-17 | 中铁大桥局集团有限公司 | Bridge bored pile hole wall opening protection method |
| CN102704685A (en) * | 2012-05-23 | 2012-10-03 | 中国建筑第二工程局有限公司 | Concrete pouring blanking quick insertion pipe and use method thereof |
| CN103015469A (en) * | 2012-11-20 | 2013-04-03 | 中国石油天然气集团公司 | Bar planting technique |
| CN102962872A (en) * | 2012-11-22 | 2013-03-13 | 苏州皇家整体住宅系统股份有限公司 | Laminated wood embedded steel bar construction technology |
| CN110683451A (en) * | 2018-07-06 | 2020-01-14 | 株式会社日立大厦系统 | Elevator installation device |
| CN112627251A (en) * | 2020-12-30 | 2021-04-09 | 中国化学工程第十六建设有限公司 | Deep hole bar planting construction method for reinforced concrete structure |
| CN115522484A (en) * | 2022-09-30 | 2022-12-27 | 杭州鑫固建筑特种技术有限公司 | Secondary reinforcing bar planting improvement method |
| CN115522484B (en) * | 2022-09-30 | 2023-08-15 | 杭州鑫固建筑特种技术有限公司 | Secondary reinforcement bar planting improvement method |
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| Publication number | Publication date |
|---|---|
| CN100596318C (en) | 2010-03-31 |
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Owner name: WUHAN WUHAN JUCHENG STRUCTURE CO., LTD. Free format text: FORMER NAME: WUDA-JUCHENG REINFORCING INDUSTRY CO LTD, WUHAN |
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Address after: 430223 Hubei city of Wuhan province East Lake Development Zone Wuhan University Science Park Road No. 4 Patentee after: WUDA JUCHENGSTRUCTURE Co.,Ltd. Address before: 430077 Hubei Province, Wuhan city Wuchang District in the north city of block A 26 layer Patentee before: Wuhan Wuda Jucheng Strengthening Industrial Co.,Ltd. |
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Address after: 430223 Hubei city of Wuhan province East Lake Development Zone Wuhan University Science Park Road No. 4 Patentee after: WUDA JUCHENG STRUCTURE Co.,Ltd. Address before: 430223 Hubei city of Wuhan province East Lake Development Zone Wuhan University Science Park Road No. 4 Patentee before: WUDA JUCHENGSTRUCTURE Co.,Ltd. |
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Address after: No. 4, Wuda Science and Technology Park Road, Donghu Development Zone, Wuhan City, Hubei Province, 430223 Patentee after: Wuhan Jucheng Structure Group Co.,Ltd. Address before: No. 4, Wuda Science and Technology Park Road, Donghu Development Zone, Wuhan City, Hubei Province, 430223 Patentee before: WUDA JUCHENG STRUCTURE Co.,Ltd. |