CN108166500A - A kind of cutting disassembling of deep foundation ditch concrete near a river and recovery method - Google Patents

A kind of cutting disassembling of deep foundation ditch concrete near a river and recovery method Download PDF

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Publication number
CN108166500A
CN108166500A CN201711319016.9A CN201711319016A CN108166500A CN 108166500 A CN108166500 A CN 108166500A CN 201711319016 A CN201711319016 A CN 201711319016A CN 108166500 A CN108166500 A CN 108166500A
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China
Prior art keywords
cutting
inner support
river
deep foundation
foundation ditch
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CN201711319016.9A
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Chinese (zh)
Inventor
田杰
唐红
廖乾坤
卢硕
张须庆
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Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
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Wuhan University of Science and Engineering WUSE
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Priority to CN201711319016.9A priority Critical patent/CN108166500A/en
Publication of CN108166500A publication Critical patent/CN108166500A/en
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/02Foundation pits
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/08Wrecking of buildings
    • E04G23/082Wrecking of buildings using shears, breakers, jaws and the like

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Electrochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

The invention discloses a kind of cutting disassembling of deep foundation ditch concrete near a river and recovery methods, belong to technical field of building construction.The cutting disassembling of deep foundation ditch concrete near a river and recovery method include the following steps:Preliminary preparation is carried out in Deep Foundation Pit near a river;Determine the cutting section of the inner support of deep basal pit near a river;Pair of interior support carries out split heads support;Hole for hoist is bored in the supporting beam of inner support, for the hoisting transportation after cutting;The installation site of rope saw cutting machine is determined according to the cutting section of inner support, the cutting section of pair of interior support carries out static(al) cutting;The supporting beam of inner support after cutting is utilized into construction site at hole for hoist collective conveyance;The supporting beam of inner support to being transported out recycles.Deep foundation ditch concrete cutting disassembling and recovery method are efficient, safe and environment-friendly near a river by the present invention, and vibration is smaller, and noise is relatively low, no dust, smaller on surrounding enviroment influence, can effectively reduce building waste, environmental pollution is relatively low.

Description

A kind of cutting disassembling of deep foundation ditch concrete near a river and recovery method
Technical field
The present invention relates to technical field of building construction is belonged to, more particularly to a kind of cutting disassembling of deep foundation ditch concrete near a river and Recovery method.
Background technology
With the continuous development in city, the continuous improvement of living standard, people are to the comfort level of house, functionality etc. It is required that it is continuously improved, therefore the addressing of more and more projects is either built near a river in densely populated, urban core commercial circle.And This intermediate item usually collects quotient, the large-scale synthesis engineering for living one generally for limited soil is utilized to greatest extent.This The building of class large size promotes deep-foundation pit engineering increasing, and the safety of foundation pit is more and more important, and the dismounting of foundation pit support is foundation pit The most important thing of safety.Traditional supporting removal method, it is general artificial broken using the machinery strength such as mode of pneumatic pick or big gun machine Remove or use the method for dismounting of explosion.And in the special area of some orographic conditions, such as surrounding buildings than comparatively dense or Person is that flood control near a river is kept under strict control area, is removed according to traditional form of construction work, has serious dismounting noise and airborne dust, influence The normal life of surrounding resident.Meanwhile great vibrations generate disturbance to existing building structure around, cause undesirable influence.
Invention content
The present invention provides a kind of cutting disassembling of deep foundation ditch concrete static(al) near a river and recovery method, solves or part solves Deep foundation ditch concrete leads to have serious dismounting noise and airborne dust using transmission method for dismounting near a river in the prior art, influences The normal life of surrounding resident, great vibrations generate disturbance to existing building structure around, cause the technology of undesirable influence Problem.
In order to solve the above technical problems, the present invention provides a kind of cutting disassembling of deep foundation ditch concrete static(al) near a river and recycling Method includes the following steps:Preliminary preparation is carried out in Deep Foundation Pit near a river;Determine the cutting of the inner support of deep basal pit near a river Section;Split heads support is carried out to the inner support;Hole for hoist is bored in the supporting beam of the inner support, for the lifting after cutting Transport;The installation site of rope saw cutting machine is determined according to the cutting section of the inner support, to the cutting section of the inner support Carry out static(al) cutting;The supporting beam of the inner support after cutting is utilized into construction site at hole for hoist collective conveyance;To transport The supporting beam of the inner support gone out is recycled.
Further, the progress of the Deep Foundation Pit the near a river preliminary preparation includes:Power supply, water source are plugged into applying Work scene, in combination with the construction note data of early period, tentatively drafts the bracing demolition.
Further, the power supply uses the alternating current of 380V or 220V;The water source carries out secondary profit using recycle-water With.
Further, the construction note data of the early period includes geologic prospect data and surrounding buildings environment.
Further, the water source cools down the rope saw cutting machine, and clast is taken away..
Further, the cutting section for determining the inner support of deep basal pit near a river includes:By construction drawing and combine On-site actual situations determine cutting section or are calculated by force on cross-section, check the section of cutting, can be safely and fast Dismounting structure, then cutting section precise positioning to be carried out is marked with paint by total powerstation.
Further, split heads support is carried out to the inner support to include:Using discarded steel and template construct into split heads, According to sectional dimension difference, the split heads height is 400-800mm, by the split heads pad under support, is not had in the split heads It is padded when agreeing with completely with cushion block.
Further, the installation site for determining rope saw cutting machine according to the cutting section of the inner support includes:It is painting It on the cutting section of the inner support marked, is first made a hole with diamond water drilling, by rope saw across this hole with hydraulic pressure Motor connects, and rope saw hydraulic cutter builds completion.
Further, static(al) cutting is carried out to the cutting section of the inner support to include:The rope saw is in the hydraulic pressure horse Under up to driving at the paint marks that cut surface high-speed motion grinds the inner support, cutting work is completed.
Further, the supporting beam of the inner support being transported out recycle and be included:It is manually first using pneumatic pick Supporting beam is abolished, then separates reinforcing bar and concrete, reinforcing bar recycling continues with, and damaged concrete carries out Crushing is handled, and brick secondary use can be pressed by carrying out recovery processing.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
Due to carrying out preliminary preparation in Deep Foundation Pit near a river, the cutting section of the inner support of deep basal pit near a river is determined, Pair of interior support carries out split heads support, hole for hoist is bored in the supporting beam of inner support, for the hoisting transportation after cutting, according to interior branch The cutting section of support determines the installation site of rope saw cutting machine, and the cutting section of pair of interior support carries out static(al) cutting, noise very little, Airborne dust is smaller, does not interfere with the normal life of nearby residents, and vibration is smaller, safety smaller to the disturbance of ambient enviroment during construction Property be easier to be protected, will not generate disturbance to existing building structure around, construction is simpler, flexibly, precision it is high, improve Construction efficiency shortens the construction period, surrounding enviroment is influenced smaller, and the supporting beam of the inner support after cutting is utilized hole for hoist Construction site at collective conveyance, the supporting beam of the inner support to being transported out recycle, and fully consider and build in work progress Sustainable requirement is built, meets the requirement of green building construction, reduces the pollution to environment, recycling secondary use is carried out to material Meet the green requirement for building section material, building waste can be effectively reduced, environmental pollution is relatively low, also agrees with the reason of building continuous property It reads, there is certain economic benefit.
Description of the drawings
Fig. 1 is that the static(al) of deep foundation ditch concrete near a river provided in an embodiment of the present invention is cut and disassembled and the flow of recovery method is shown It is intended to.
Specific embodiment
Referring to Fig. 1, a kind of cutting disassembling of deep foundation ditch concrete near a river and recovery method provided in an embodiment of the present invention include Following steps:
Step 1, preliminary preparation is carried out in Deep Foundation Pit near a river.
Step 2, the cutting section of the inner support of deep basal pit near a river is determined.
Step 3, split heads support is carried out to the inner support.
Step 4, hole for hoist is bored in the supporting beam of the inner support, for the hoisting transportation after cutting.
Step 5, the installation site of rope saw cutting machine is determined according to the cutting section of the inner support, to the inner support Cutting section carries out static(al) cutting.
Step 6, the supporting beam of the inner support after cutting is utilized into construction site at hole for hoist collective conveyance.
Step 7, the supporting beam of the inner support being transported out is recycled.
The application specific embodiment determines deep basal pit near a river due to carrying out preliminary preparation in Deep Foundation Pit near a river The cutting section of inner support, pair of interior support carry out split heads support, hole for hoist are bored in the supporting beam of inner support, after cutting Hoisting transportation, the installation site of rope saw cutting machine is determined according to the cutting section of inner support, and the cutting section of pair of interior support carries out Static(al) is cut, and noise very little, airborne dust are smaller, does not interfere with the normal life of nearby residents, and vibration is smaller, to ring around during construction The disturbance in border is smaller, and safety is easier to be protected, and will not generate disturbance to existing building structure around, construction is simpler Single, flexible, precision height, improves construction efficiency, shortens the construction period, smaller on surrounding enviroment influence, by the interior branch after cutting The supporting beam of support is recycled using construction site at hole for hoist collective conveyance, the supporting beam of the inner support to being transported out, Building continuous requirement is fully considered in work progress, meets the requirement of green building construction, reduces the pollution to environment, it is right Material carries out recycling secondary use and meets the green requirement for building section material, can effectively reduce building waste, and environmental pollution is relatively low, Agree with the theory of building continuous property, there is certain economic benefit.
Step 1 is discussed in detail.
The Deep Foundation Pit near a river carries out preliminary preparation and includes:Power supply, water source are plugged into construction site, simultaneously With reference to the construction note data of early period, the bracing demolition is tentatively drafted.The power supply uses the alternating current of 380V or 220V, It constructs for the rope saw cutting machine.
The water source carries out secondary use using recycle-water, and the water source cools down the rope saw cutting machine, and will Clast is taken away.The water source selects the recycle-waters such as rainwater-collecting, underground water progress secondary use to meet, and green building is water-saving to be wanted It asks, is mainly used for radiating to the rope saw cutting machine during cutting, while disintegrating slag caused by cutting can be taken away.
The construction note data of the early period includes geologic prospect data and surrounding buildings environment, described convenient for tentatively drafting Bracing demolition scheme.
Step 2 is discussed in detail.
The cutting section for determining the inner support of deep basal pit near a river includes:By construction drawing and combine the practical feelings in scene Condition determines cutting section or is calculated by force on cross-section, checks the section of cutting, dismounting structure that can be safely and fast, Then cutting section precise positioning to be carried out is marked with paint by total powerstation.
It is discussed in detail 3.
Split heads support is carried out to the inner support to include:Using discarded steel with template construct into split heads, according to section Size is different, and the split heads height is 400-800mm, by the split heads pad under support, is not agreed with completely in the split heads When padded with cushion block.Since the inner support is important foundation pit supporting construction, will certainly cause in foundation pit after dismounting Power redistribution if not using appropriate counter-measure, easily causes the security risks such as foundation pit collapse, in order to balance the base after tearing support open Sidewall earth pressure is cheated, eliminates bad hidden danger.It needs to return back to top to the supporting beam of the inner support by split heads or support replacement. The single split heads bearing capacity is in 25KN or so.
Step 5 is discussed in detail.
The installation site for determining rope saw cutting machine according to the cutting section of the inner support includes:In the good institute of paint marks It states on the cutting section of inner support, first makes a call to a φ 20mm hole with diamond water drilling, by rope saw across this hole with hydraulic motor It connects, rope saw hydraulic cutter builds completion.
Static(al) cutting is carried out to the cutting section of the inner support to include:It is described rope saw the hydraulic motor driving under around Cut surface high-speed motion is ground at the paint marks of the inner support, completes cutting work.
Step 7 is discussed in detail.
The supporting beam of the inner support being transported out recycle and is included:Using pneumatic pick manually first by supporting beam into Row is abolished, and then separates reinforcing bar and concrete, and reinforcing bar recycling continues with, and damaged concrete carries out crushing processing, Brick secondary use can be pressed by carrying out secondary use, in order to avoid influencing other than the concrete waste material removed is transported to scene Construction speed, collective conveyance reduce the burden to environment, meeting building can to being recycled to concrete waste material after over-the-counter The requirement of duration.
In order to become apparent from introducing the embodiment of the present invention, introduced from the application method of the embodiment of the present invention below.
1, early-stage preparations:
Operation field is first cleaned out first, and operating platform should be arranged on the concrete plane poured.It will be required Equipment transports to construction site, while by 380V, 220V alternating-current power supply, and the corresponding water source that recycles is plugged into construction site, water source The recycle-waters such as rainwater-collecting, underground water is selected to carry out secondary use and meet the water-saving requirement of green building, when being mainly used for cutting It radiates to rope saw cutting machine, while disintegrating slag caused by cutting can be taken away, in combination with the construction note data of early period, The construction note data of early period includes geologic prospect data and surrounding buildings environment, convenient for tentatively drafting bracing demolition scheme, Formulate the solution of burst in emergency circumstances.
2, determine cutting section:
Cutting section is determined according to construction drawing and site specific, when determining section, if it is necessary to carry out force on cross-section It calculates and ensures construction safety.The dismounting sequence of inner support is generally, according to the layout feature of the concrete inner support, consider its by Power situation, it then follows inner support beam after first Guan Liang, after first secondary beam girder principle, the work of reasonable, orderly arrangement bracing demolition, It determines per block concrete block weight and inner support cutting sequence, and cut mark is carried out with red paint.
3, split heads support:
Split heads is by discarded steel and template construct, and the different cross section cut as needed, split heads height usually exists 400-800mm, the bearing capacity of each split heads support is 25KN.Related technical personnel by split heads pad under the supporting beam of inner support, It needs to be padded with flitch cushion block when necessary.
4, bore hole for hoist:
Being found according to the section after determining needs the supporting beam of inner support cut, then calculates optimal hole for hoist setting Position, the hole for hoist of φ 100mm is drilled out using diamond water drilling, for completing to lift use after cutting disassembling work.
5, rope saw cutting machine is installed:
According on the good section of paint marks, the hole of a φ 20mm is first got with diamond water drilling, hydraulic motor is pacified It puts under the section for needing to cut, then the hole just drilled out is passed through to be connected again with hydraulic motor diamond rope saw, cut System formally builds completion.
6, static(al) cutting:
Before formal cutting, check whether equipment is normal, and whether safeguard procedures prepare in place again.If all prepare It has all checked and has finished and there is no problem, can formally start to cut.Before starting cutting, it is that rope saw is protected to start hydraulic motor first A tight state is held, purpose makes the abundant stress of diamond rope saw, to avoid risk of breakage.When starting cutting, cooling water Diamond rope saw should be cooled down simultaneously.Should be noted that during cutting inner support fine strain of millet fracture, generation of falling emergency situations and The danger of diamond rope saw fracture, carries out correlative protection measure and avoids damaging operating personnel.
7, hoisting transportation:
The supporting beam of the inner support after dismounting is carried out lifting using tower crane or crane to get on the bus, it can not in tower crane and crane Wooden handcart is carried to fork truck or artificial mode in the range of lifting, transports construction site outside, is applied in order to avoid influencing construction site Work, schedule delays.
8, it recycles:
Concrete inner support fine strain of millet after dismounting is recycled, first in a manual manner using pneumatic pick to supporting beam into Row primary crushing peels away reinforcing bar from concrete, and the reinforcing bar after stripping may be used as the making of split heads or recycling is used Make other purposes;Second-time breakage is carried out to concrete block again, concrete block is further smashed to pieces with bruisher, the coagulation after smashing to pieces Native waste residue can be pressed into brick, can be again in the building enclosure construction being back in project.
The advantages of construction method of the present invention:
Working hour is smaller to the disturbance of ambient enviroment, and safety is easier to be protected.
Construction is simpler, flexible, precision is high, improves construction efficiency, shortens the construction period.
During diamond rope saw cutting operation, noise very little, airborne dust are smaller, do not interfere with the normal life of nearby residents.
Building continuous requirement is fully considered in work progress, plays the theory of green building, reduces the dirt to environment Dye carries out material recycling secondary use and meets the green requirement for building section material.
According to foregoing invention, there are the advantages of notable, first diamond during the bracing demolition of deep basal pit near a river Rope saw static force cutting has the characteristics of efficient, safe and environment-friendly.The vibration of static(al) cutting is smaller, and noise is relatively low, no dust, therefore Surrounding enviroment are influenced smaller.Secondly, the broken recycling for carrying out beams of concrete is handled, building waste can be effectively reduced, Environmental pollution is relatively low, meets the requirement of green building construction, also agrees with the theory of building continuous property, has certain economy Benefit.
It should be noted last that more than specific embodiment is merely illustrative of the technical solution of the present invention and unrestricted, Although the present invention is described in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention Technical solution be modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention, should all cover In scope of the presently claimed invention.

Claims (10)

1. a kind of cutting disassembling of deep foundation ditch concrete near a river and recovery method, which is characterized in that include the following steps:
Preliminary preparation is carried out in Deep Foundation Pit near a river;
Determine the cutting section of the inner support of deep basal pit near a river;
Split heads support is carried out to the inner support;
Hole for hoist is bored in the supporting beam of the inner support, for the hoisting transportation after cutting;
The installation site of rope saw cutting machine is determined according to the cutting section of the inner support, to the cutting section of the inner support into Row static(al) is cut;
The supporting beam of the inner support after cutting is utilized into construction site at hole for hoist collective conveyance;
The supporting beam of the inner support being transported out is recycled.
2. deep foundation ditch concrete near a river according to claim 1 cutting disassembling and recovery method, which is characterized in that it is described Deep Foundation Pit progress preliminary preparation includes near a river:
Power supply, water source are plugged into construction site, in combination with the construction note data of early period, the inner support is tentatively drafted and tears open It removes.
3. the cutting disassembling of deep foundation ditch concrete near a river according to claim 2 and recovery method, it is characterised in that:
The power supply uses the alternating current of 380V or 220V;
The water source carries out secondary use using recycle-water.
4. the cutting disassembling of deep foundation ditch concrete near a river according to claim 2 and recovery method, it is characterised in that:
The construction note data of the early period includes geologic prospect data and surrounding buildings environment.
5. the cutting disassembling of deep foundation ditch concrete near a river according to claim 2 and recovery method, it is characterised in that:
The water source cools down the rope saw cutting machine, and clast is taken away.
6. the cutting disassembling of deep foundation ditch concrete near a river according to claim 1 and recovery method, which is characterized in that described true The cutting section of the fixed inner support of deep basal pit near a river includes:
It determines cutting section by construction drawing and with reference to on-site actual situations or is calculated by force on cross-section, check cutting Section, dismounting structure that can be safely and fast, then by total powerstation to cutting section precise positioning to be carried out, with paint It is marked.
7. the cutting disassembling of deep foundation ditch concrete near a river according to claim 1 and recovery method, which is characterized in that described Inner support carries out split heads support and includes:
Using discarded steel and template construct into split heads, according to sectional dimension difference, the split heads height is 400-800mm, By the split heads pad under support, padded when the split heads does not agree with completely with cushion block.
8. the cutting disassembling of deep foundation ditch concrete near a river according to claim 1 and recovery method, which is characterized in that according to institute The cutting section for stating inner support determines that the installation site of rope saw cutting machine includes:
It on the cutting section of the good inner support of paint marks, is first made a hole with diamond water drilling, rope is sawed across this A hole is connected with hydraulic motor, and rope saw hydraulic cutter builds completion.
9. the cutting disassembling of deep foundation ditch concrete near a river according to claim 8 and recovery method, which is characterized in that described The cutting section of inner support carries out static(al) cutting and includes:
It is complete at the paint marks that the rope saw grinds the inner support under hydraulic motor driving around cut surface high-speed motion Into cutting work.
10. the cutting disassembling of deep foundation ditch concrete near a river according to claim 8 and recovery method, which is characterized in that fortune The supporting beam of the inner support of output, which recycle, to be included:
Manually first supporting beam is abolished using pneumatic pick, then separates reinforcing bar and concrete, reinforcing bar recycling continues profit With damaged concrete carries out crushing processing, and brick secondary use can be pressed by carrying out recovery processing.
CN201711319016.9A 2017-12-12 2017-12-12 A kind of cutting disassembling of deep foundation ditch concrete near a river and recovery method Pending CN108166500A (en)

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Cited By (14)

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CN109208938A (en) * 2018-10-22 2019-01-15 深圳市工勘岩土集团有限公司 Armoured concrete slab orients lossless static(al) and processing method is cut and disassembled
CN109778874A (en) * 2019-03-04 2019-05-21 中铁四局集团有限公司 Deep foundation pit concrete support dismantling process
CN110080301A (en) * 2019-05-13 2019-08-02 中铁十二局集团第二工程有限公司 A kind of construction method that subway station underground continuous wall-enclosure structure punches
CN111335672A (en) * 2020-03-30 2020-06-26 中铁二十二局集团第五工程有限公司 Diamond wire saw cutting construction method
CN112793005A (en) * 2020-12-21 2021-05-14 中铁一局集团电务工程有限公司 Static force cutting method for concrete structure
CN113550194A (en) * 2021-06-08 2021-10-26 中国二十二冶集团有限公司 Construction method for recycling concrete reinforcing bars of construction hardened ground
CN114396057A (en) * 2022-03-03 2022-04-26 中国建筑第八工程局有限公司 Static force cutting construction method for high-span foundation pit inner support under trestle bridge
CN114482618A (en) * 2022-01-05 2022-05-13 中核华辰建筑工程有限公司 Construction method for static force demolition of reinforced concrete structure
CN114753381A (en) * 2022-05-23 2022-07-15 中铁七局集团郑州工程有限公司 Method for clearing underground obstacles in non-excavation construction path range in limited space
CN114776081A (en) * 2022-04-01 2022-07-22 广东拓南建设工程有限公司 Multi-structure classification dismantling process in building engineering
CN115030559A (en) * 2022-05-24 2022-09-09 四川农业大学 Method for dismantling cast-in-situ concrete beam slab column of constructed building
CN115506371A (en) * 2022-10-28 2022-12-23 中建一局集团建设发展有限公司 Construction method for dismantling ultrahigh inner support of deep foundation pit
CN116000071A (en) * 2023-01-31 2023-04-25 中建八局第一建设有限公司 Foundation pit supporting concrete beam slab dismantling, classifying and recycling and construction method thereof
CN116427430A (en) * 2023-05-30 2023-07-14 广州市机电安装有限公司 Construction method for removing inner support back roof

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109208938A (en) * 2018-10-22 2019-01-15 深圳市工勘岩土集团有限公司 Armoured concrete slab orients lossless static(al) and processing method is cut and disassembled
CN109778874A (en) * 2019-03-04 2019-05-21 中铁四局集团有限公司 Deep foundation pit concrete support dismantling process
CN110080301A (en) * 2019-05-13 2019-08-02 中铁十二局集团第二工程有限公司 A kind of construction method that subway station underground continuous wall-enclosure structure punches
CN111335672A (en) * 2020-03-30 2020-06-26 中铁二十二局集团第五工程有限公司 Diamond wire saw cutting construction method
CN112793005A (en) * 2020-12-21 2021-05-14 中铁一局集团电务工程有限公司 Static force cutting method for concrete structure
CN113550194A (en) * 2021-06-08 2021-10-26 中国二十二冶集团有限公司 Construction method for recycling concrete reinforcing bars of construction hardened ground
CN114482618A (en) * 2022-01-05 2022-05-13 中核华辰建筑工程有限公司 Construction method for static force demolition of reinforced concrete structure
CN114396057A (en) * 2022-03-03 2022-04-26 中国建筑第八工程局有限公司 Static force cutting construction method for high-span foundation pit inner support under trestle bridge
CN114776081A (en) * 2022-04-01 2022-07-22 广东拓南建设工程有限公司 Multi-structure classification dismantling process in building engineering
CN114753381A (en) * 2022-05-23 2022-07-15 中铁七局集团郑州工程有限公司 Method for clearing underground obstacles in non-excavation construction path range in limited space
CN115030559A (en) * 2022-05-24 2022-09-09 四川农业大学 Method for dismantling cast-in-situ concrete beam slab column of constructed building
CN115506371A (en) * 2022-10-28 2022-12-23 中建一局集团建设发展有限公司 Construction method for dismantling ultrahigh inner support of deep foundation pit
CN116000071A (en) * 2023-01-31 2023-04-25 中建八局第一建设有限公司 Foundation pit supporting concrete beam slab dismantling, classifying and recycling and construction method thereof
CN116000071B (en) * 2023-01-31 2024-08-09 中建八局第一建设有限公司 Foundation pit supporting concrete beam slab dismantling, classifying and recycling and construction method thereof
CN116427430A (en) * 2023-05-30 2023-07-14 广州市机电安装有限公司 Construction method for removing inner support back roof

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Application publication date: 20180615