CN102127975A - Concrete beforehand pore-forming static breaking technology - Google Patents
Concrete beforehand pore-forming static breaking technology Download PDFInfo
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- CN102127975A CN102127975A CN2011100940846A CN201110094084A CN102127975A CN 102127975 A CN102127975 A CN 102127975A CN 2011100940846 A CN2011100940846 A CN 2011100940846A CN 201110094084 A CN201110094084 A CN 201110094084A CN 102127975 A CN102127975 A CN 102127975A
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Abstract
The invention provides a concrete beforehand pore-forming static breaking technology. A plurality of containers with a certain sizes, shapes and amounts are embedded in a concrete member before the concrete is cast, a plurality of orifices are arranged above the containers, the inner diameters of the orifices are less than the inner diameters of the containers, and the orifices are extended to the edge of the concrete member. When the concrete member needs to be disassembled, the expanding agent is filled into the containers along with the orifices, the expanding agent is chemically reacted in the containers to generate the expansibility, the concrete member is expanded to be broken, and the whole process is free of noise, vibration and slungshots. Compared with the normal pore-forming type static breaking technology, the expansibility is larger, the expanding agent can be effectively avoided to be sprayed out of the orifices, and the construction is safe and environment-friendly; and the drilling working capacity is eliminated, so that the cost can be reduced, and the disassembly construction period can be shortened, therefore, the technology is suitable for the static breaking of engineering temporary facilities.
Description
[technical field]
The present invention relates to a kind of concrete demolition technique, especially concrete preexisting hole static crushing technology.
[background technology]
At present, the static crushing technology is mainly used in rock mining, small part is used for having the object of construction production of specific (special) requirements to remove to surrounding enviroment, the main cause that reinforced concrete structure Static crushing technology can not be used widely always is, boring aperture can not be too big, and be subjected to all multifactor restrictions such as reinforced component, borehole conditions.The dismounting of temporory structure can be avoided this constraints fully in fact.Interim reinforcement measure when temporory structure in the engineering such as builder's road, deep foundation ditch horizontal support or structure are rushed to repair etc., when proceeding to a certain degree, construction just need remove, common dismounting mode mainly contains pick machine, pneumatic pick fragmentation, and some are also arranged is to bury explosive blasting underground.Always to produce noise and vibration in the demolishing process, not only disturb residents, and vibrate and to influence the set strength of newly placed concrete, even influence the safety in peripheral house, therefore usually need to adopt the static crushing technology.Adopt the job practices of static crushing to be at present: join air compressor machine boring with pneumatic pick earlier on concrete component, expansion agent is added water furnishing pasty state according to a certain percentage pour in the hole, expansion agent generation chemical reaction expands, with concrete spalling fragmentation.
Hole on concrete, the expansion agent of packing into then carries out the method for static crushing, mainly has following shortcoming:
A, if the expansion force deficiency of the too small generation in aperture of boring does not usually reach crushing effect; Easy spray orifice when the aperture is excessive, promptly expansion force discharges toward the aperture and ejection suddenly, not only can not broken concrete but also injure the constructor easily.
B, expansion agent are influenced by ambient temperature big, and the low-temperature expansion agent is just easy spray orifice when the environment for use temperature raises, otherwise when the high temperature expansion agent used at a lower temperature, expansion force is deficiency again.
C, machine drilling, the aperture is consistent with the hole interior diameter, and the aperture lacks restraint forces makes expansion force shift to the aperture direction, causes the swelling stress loss.
D, boring are mainly joined air compressor machine boring based on pneumatic pick, produce noise during boring, influence peripheral bad border equally.
E, required long in time limit, cost is high.
[summary of the invention]
In order to overcome boring cost height that the static crushing concrete technology exists, to be subjected to deficiencies such as surrounding enviroment influence greatly, expansion force is little and easy spray orifice is hurted sb.'s feelings, the present invention is directed to the dismounting of temporory structure, a kind of preexisting hole static crushing technology is provided, this position, technology hole is provided with flexibly, big and the construction safety of expansion force, the noiselessness friction can obviously be accelerated progress, reduce the broken cost of concrete.
The technical solution adopted for the present invention to solve the technical problems is: at the container of elder generation pre-buried definite shape, specification and quantity in concrete before the concreting, there is the aperture container top, and the aperture up; When concrete need be removed, pour into expansion agent from the aperture to container, expansion agent generation chemical reaction produces expansion force with concrete spalling fragmentation.
The present invention has the following advantages:
A, container putting position are flexible, and the internal diameter of container is big more than the aperture internal diameter, the more expansion agent of can packing into, and the expansion force of generation is big, and can spray orifice.
B, owing to can effectively avoid spray orifice, can use the bigger expansion agent of expansion force, expansion agent is not subjected to the influence of environment temperature, construction safety substantially.
C, noise, dust and the vibration of having avoided machine drilling to produce, environmental protection more.
D, save broken cost, shorten and remove the duration.
[description of drawings]
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is the installation drawing of the pre-buried container of the present invention.
Appointment Fig. 1 is a Figure of abstract.
Among the figure: 1. concrete component, 2. container, 3. aperture.
[specific embodiment]
The present invention is further described below in conjunction with accompanying drawing, and this concrete breaking method is very clearly concerning the people who is engaged in the building demolition specialty.
A, bury container 2 underground in advance, as Fig. 1
Size, shape, quantity and position according to situation design containers 2 such as the section form of concrete component 1 and arrangements of reinforcement, before concreting, imbed in the member 1, it above container 2 aperture 3, it is outer with indicating will that member is stretched in aperture 3, the concrete vibrating process should be avoided damage, mobile containers 2 and aperture 3, and the internal diameter in aperture 3 is less than the internal diameter of container 2.
B, pour into expansion agent
When concrete need be removed, check earlier whether aperture 3 and container 2 have damage,, 3 fill expansion agent along the aperture then, and it is real to need to insert puddling to container 2 if stop up when adopting drill rod or electric hammer that it is got through.
C, broken concrete
Expansion agent produces turgor pressure at the container internal reaction, with concrete spalling fragmentation.
Claims (4)
1. the static crushing technology of a concrete, especially concrete preexisting hole static crushing technology, it is characterized in that: elder generation is embedded in the container of certain specification in the concrete component before concreting, treat in container, to pour into expansion agent when member need be removed, utilize the expansion force of expansion agent, with concrete component spalling fragmentation.
2. concrete preexisting hole static crushing technology according to claim 1 is characterized in that imbedding quantity, size, shape and the position of concrete component inner pressurd vessel, determines according to the difficulty or ease situation of member fragmentation.
3. concrete preexisting hole static crushing technology according to claim 1 is characterized in that the top of imbedding the concrete component inner pressurd vessel is provided with the aperture, and expansion agent pours in the container by the aperture.
4. concrete preexisting hole static crushing technology according to claim 1 is characterized in that the internal diameter of the internal diameter in aperture less than container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100940846A CN102127975A (en) | 2011-04-14 | 2011-04-14 | Concrete beforehand pore-forming static breaking technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100940846A CN102127975A (en) | 2011-04-14 | 2011-04-14 | Concrete beforehand pore-forming static breaking technology |
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| Publication Number | Publication Date |
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| CN102127975A true CN102127975A (en) | 2011-07-20 |
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| CN2011100940846A Pending CN102127975A (en) | 2011-04-14 | 2011-04-14 | Concrete beforehand pore-forming static breaking technology |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733399A (en) * | 2012-07-04 | 2012-10-17 | 江苏省华建建设股份有限公司 | Method for removing internal support concrete by static expansion |
| CN103591858A (en) * | 2012-08-13 | 2014-02-19 | 徐全军 | Large-aperture static blasting method and hole plugging device thereof |
| CN103774667A (en) * | 2013-11-22 | 2014-05-07 | 福州伟业成进出口贸易有限公司 | Soundless cracking agent for building pile chopping and using method of soundless cracking agent for building pile chopping |
| CN103967010A (en) * | 2014-05-14 | 2014-08-06 | 中铁西北科学研究院有限公司深圳南方分院 | Method for safely detaching anchor sealing concrete |
| CN105155553A (en) * | 2015-09-09 | 2015-12-16 | 杭州江润科技有限公司 | Green dismantling construction method combining concrete support static crush and splitting method |
| CN108775226A (en) * | 2018-06-08 | 2018-11-09 | 兖州煤业股份有限公司 | A kind of device and method of underground static crushing armored concrete arch body |
| CN109680986A (en) * | 2019-01-10 | 2019-04-26 | 哈尔滨理工大学 | Reinforced concrete structure static state noiseless method for dismounting |
| CN110284610A (en) * | 2019-07-29 | 2019-09-27 | 南京君缘科爆工程技术有限公司 | A kind of reinforced concrete structure and its static crushing method for dismounting customizing partial demolition |
| CN114541807A (en) * | 2022-03-23 | 2022-05-27 | 中建八局第三建设有限公司 | Static breaking construction method for reinforced concrete structure |
| CN115288476A (en) * | 2022-08-01 | 2022-11-04 | 华南农业大学 | Water jet breaking and dismantling method based on pre-cracked concrete structure |
| CN115898075A (en) * | 2022-09-28 | 2023-04-04 | 中交四公局第一工程有限公司 | A preset income formula concrete breaker for interim concrete facility |
-
2011
- 2011-04-14 CN CN2011100940846A patent/CN102127975A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733399A (en) * | 2012-07-04 | 2012-10-17 | 江苏省华建建设股份有限公司 | Method for removing internal support concrete by static expansion |
| CN103591858A (en) * | 2012-08-13 | 2014-02-19 | 徐全军 | Large-aperture static blasting method and hole plugging device thereof |
| CN103591858B (en) * | 2012-08-13 | 2015-09-30 | 徐全军 | A kind of LARGE APERTURE STATIC IMAGING blasting method and hole plugging device thereof |
| CN103774667B (en) * | 2013-11-22 | 2016-08-17 | 福州伟业成进出口贸易有限公司 | A kind of quiet using method splitting agent cutting stake for building |
| CN103774667A (en) * | 2013-11-22 | 2014-05-07 | 福州伟业成进出口贸易有限公司 | Soundless cracking agent for building pile chopping and using method of soundless cracking agent for building pile chopping |
| CN103967010A (en) * | 2014-05-14 | 2014-08-06 | 中铁西北科学研究院有限公司深圳南方分院 | Method for safely detaching anchor sealing concrete |
| CN103967010B (en) * | 2014-05-14 | 2016-08-31 | 中铁西北科学研究院有限公司深圳南方分院 | A kind of safe method for dismounting of sealing off and covering anchorage concrete |
| CN105155553A (en) * | 2015-09-09 | 2015-12-16 | 杭州江润科技有限公司 | Green dismantling construction method combining concrete support static crush and splitting method |
| CN108775226A (en) * | 2018-06-08 | 2018-11-09 | 兖州煤业股份有限公司 | A kind of device and method of underground static crushing armored concrete arch body |
| CN109680986A (en) * | 2019-01-10 | 2019-04-26 | 哈尔滨理工大学 | Reinforced concrete structure static state noiseless method for dismounting |
| CN110284610A (en) * | 2019-07-29 | 2019-09-27 | 南京君缘科爆工程技术有限公司 | A kind of reinforced concrete structure and its static crushing method for dismounting customizing partial demolition |
| CN110284610B (en) * | 2019-07-29 | 2024-04-19 | 南京君缘科爆工程技术有限公司 | Customized partially dismantled reinforced concrete structure and static crushing dismantling method thereof |
| CN114541807A (en) * | 2022-03-23 | 2022-05-27 | 中建八局第三建设有限公司 | Static breaking construction method for reinforced concrete structure |
| CN115288476A (en) * | 2022-08-01 | 2022-11-04 | 华南农业大学 | Water jet breaking and dismantling method based on pre-cracked concrete structure |
| CN115898075A (en) * | 2022-09-28 | 2023-04-04 | 中交四公局第一工程有限公司 | A preset income formula concrete breaker for interim concrete facility |
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Application publication date: 20110720 |