CN110424739A - A kind of construction method of casting of concrete in mass - Google Patents

A kind of construction method of casting of concrete in mass Download PDF

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Publication number
CN110424739A
CN110424739A CN201910763599.7A CN201910763599A CN110424739A CN 110424739 A CN110424739 A CN 110424739A CN 201910763599 A CN201910763599 A CN 201910763599A CN 110424739 A CN110424739 A CN 110424739A
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CN
China
Prior art keywords
concrete
casting
construction method
layer
reinforcing bar
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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CN201910763599.7A
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Chinese (zh)
Inventor
李春好
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Anran Water Conservancy Engineering Co Ltd
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Anhui Anran Water Conservancy Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN201910763599.7A priority Critical patent/CN110424739A/en
Publication of CN110424739A publication Critical patent/CN110424739A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/16Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • 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
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • 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
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04Devices for both conveying and distributing
    • 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
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04Devices for both conveying and distributing
    • E04G21/0418Devices for both conveying and distributing with distribution hose
    • E04G21/0436Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
    • 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
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/24Safety or protective measures preventing damage to building parts or finishing work during construction
    • E04G21/246Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets

Abstract

The invention discloses a kind of construction methods of casting of concrete in mass, when solving existing casting of concrete in mass, there are problems that the cold seam of construction and easily causes biggish thermal (temperature difference) stress, in the present invention, pass through continuous placing, it is possible to prevente effectively from the presence for cold seam of constructing, reduces temperature difference between inside and outside concrete using effective technical measures.

Description

A kind of construction method of casting of concrete in mass
Technical field
The present invention relates to concreting technical fields, specifically design a kind of construction method of casting of concrete in mass.
Background technique
Concrete is one of the present age most important civil engineering material.It is by cementitious material, and granular aggregat is (also referred to as Aggregate), water, and the additive and admixture that are added when necessary are prepared by a certain percentage, and through uniform stirring, closely knit molding is supported A kind of artificial stone material made of shield hardening.The characteristics of concrete has abundant raw material, cheap, simple production process, thus Keep its dosage increasing.Concrete also has the features such as compression strength is high, and durability is good, and strength grade range is wide simultaneously.This A little features keep its use scope very extensive, not only use in various civil engineerings, are exactly shipbuilding industry, mechanical industry, ocean Exploitation, geothermal engineering etc., concrete is also important material.
With the development of science and technology concrete has been used for bridge, room body etc. is big to be built, to extend mass concrete What is poured pours object.
The patent application of Publication No. CN102363960A discloses a kind of nuclear island raft foundation casting of concrete in mass side Method, a kind of nuclear island raft foundation casting of concrete in mass method provided by the invention can be realized mass concrete one-time-concreting at Type substantially reduces the construction period, improves work efficiency, and meets the needs of nuclear power station fast development.
Notification number is the patent of CN107663832B, discloses a kind of split heads dress poured for Massive Bridge Concrete It sets, the present invention is that one kind can be with the structure gadget of large-scale production.Size calculates simply, easy to process, and operation is quickly, general Property it is strong, compared with condition weld split heads, materials'use can be saved.It is easy for construction, simple, it is easy to grasp and operate.
But in existing technology, following defect is still remained: when existing casting of concrete in mass, it is cold to there is construction The problem of stitching and easily causing biggish thermal (temperature difference) stress, and the problem has seriously affected the use of casting of concrete in mass object Service life.
To solve the above-mentioned problems, a kind of construction method of casting of concrete in mass is proposed in the present invention.
Summary of the invention
The purpose of the present invention is to provide a kind of construction method of casting of concrete in mass, this kind of mass concrete is poured The construction method built, by continuous placing, it is possible to prevente effectively from the presence for cold seam of constructing, meanwhile, using effective technical measures Reduce temperature difference between inside and outside concrete.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of construction method of casting of concrete in mass, specific construction procedure are as follows:
Step 1: the purchasing of raw materials
(1) material selects: the stringent model kind by construction drawing design requirement, quantity progress reinforcing bar buying, and when buying answers With product certificate and bill of materials.
(2) material tests: inspection is sampled by batch, pass the test rear can be used;
(3) material stores: reinforcing bar stores classifiedly, and lower part, which is set, erects Dun Qiang, and must not use waterproof cloth directly with ground face contact It covers, to slow down rebar surface corrosion or be contaminated.
(4) material prepares and constructs: design drawing blanking is pressed after Steel Reinforcing Bar Material pronucleus is errorless to arrangement of reinforcement and the confirmation of arrangement of reinforcement table, Reinforcing bar connection uses electric arc overlap welding, electroslag pressure welding, the compound job specfication of the lap of splice and design requirement, and reinforcing bar connects test specimen After inspection is qualified, reinforcing bar binding can be carried out, reinforcing bar system peace is preceding to carry out concrete pad, bottom plate according to each portion for protective layer thickness Top layer reinforcing bar sets bearing rod support;
Step 2: template support
The positions such as bottom plate exterior sheathing and local reserved opening are all made of plank sheathing, and template is supported using scaffold tube, prevented Rise mould;
Step 3: concrete placings
Concrete placings use commerical ready-mixed concrete, mixer truck transport, automotive pump pumping, automotive pump average output 50m3/ h, is stirred Mix appearance of vehicle amount 12m3.A fortune outfit vehicle is calculated as follows:
N=Q1/V(L/S+Tt)
N-concrete mixing and transporting car number of units;
Q1Actual average output quantity (the m of-every concrete pump3/ h), take 50m3/h;
Capacity (the m of the agitator truck of V-every3), take 12m3
S-concrete mixer truck average speeds (Km/h), takes 20-40Km/h;
L-concrete mixer truck apart from (Km), takes 30Km back and forth;
Tt- every concrete mixing and transporting car amounts to idle hours h, takes 1.2h.
Step 4: concreting uses step placement layer by layer
Big bottom plate uses step placement layer by layer, and every layer pours thickness control in 20-40cm, conveys concrete using 1 pump truck Material divides 2 to 15 meters of right bank along pump chamber left bank and pours section, and every layer pours thickness control in 30cm, pour sequence for from north to South Platform stepwise pours;
Vibrated using internal vibration stick, vibrating spear insertion point wants evenly distributed, mobile spacing 50cm, pay attention to when vibrating with Guarantee 3cm between template, vibrating spear is avoided to contact template;
Step 5: concrete work finishing
Bottom plate surface layer plastering, the plastering personnel that close a position when layer concrete pours should carry out according to the relief that survey crew gives Surface evening, floating rule strike off, and mend the flat height in bottom in time;It is just smeared to electricity consumption finisher before initial set, twice of last artificial receipts face, plastic cloth Covering.
Preferably, the intensity of concrete pad is not less than casting concrete design strength in the step 1.
Preferably, a certain amount of flyash is added in production in the concrete, and equivalent replaces cement.
Preferably, the concreting automobile, which is pumped into mould, casting process, must connect progress.
Preferably, efficient retardation water reducing agent is mixed by the raw concrete China and foreign countries.
Preferably, in order to avoid cold seam of constructing, the mode of Ying Caiyong continuous placing in the step 4.
Preferably, the disqualified concrete to have put in storage is needed to remove in time in the step 4.
Preferably, forbid to add water in storehouse when casting concrete in the step 4, such as find concrete workability It must take that reinforcement is vibrated when poor and wait measures to guarantee concrete quality.
Preferably, the concrete poured in the step 4 in putting in storage should be accumulated in storehouse with must not close a position, if having thick Aggregate should be evenly distributed with mortar when stacking compared with many places, but not handy cement mortar covering, in order to avoid cause internal cellular.
Preferably, insulation quilt or straw screen or mat heat preservation are covered in the step 4 outside plastic cloth.
The present invention have it is following the utility model has the advantages that
1, in the present invention, by continuous placing, it is possible to prevente effectively from the presence for cold seam of constructing, meanwhile, using effective skill Art measure reduces temperature difference between inside and outside concrete.
2, in the present invention, by optimised coagulation soil ratio, low-heat portland cement in selecting of starting with from raw material is strong meeting Under the indices such as degree, cement consumption is reduced, it is appropriate to increase flyash dosage, the ratio of mud is controlled, the heat of hydration is reduced.
3, in the present invention, reasonable arrangement pours the time, reduces the concrete warehousing time, while guaranteeing out-of-machine temperature and putting in storage Temperature is not less than 5 DEG C.
4, in the present invention, placement layer by layer controls thickness, and extension pours the time, is conducive to the heat dissipation of concrete.
5, in the present invention, covering and heat insulating layer controls the temperature difference and surface and atmosphere temperature-difference in concrete table.
Specific embodiment
Below with reference to embodiment, further description of the specific embodiments of the present invention, and following embodiment is only used for more Technical solution of the present invention is clearly demonstrated, and not intended to limit the protection scope of the present invention.
A kind of construction method of casting of concrete in mass, specific construction procedure are as follows:
Step 1: the purchasing of raw materials
(5) material selects: the stringent model kind by construction drawing design requirement, quantity progress reinforcing bar buying, and when buying answers With product certificate and bill of materials.
(6) material tests: inspection is sampled by batch, pass the test rear can be used;
(7) material stores: reinforcing bar stores classifiedly, and lower part, which is set, erects Dun Qiang, and must not use waterproof cloth directly with ground face contact It covers, to slow down rebar surface corrosion or be contaminated.
(8) material prepares and constructs: design drawing blanking is pressed after Steel Reinforcing Bar Material pronucleus is errorless to arrangement of reinforcement and the confirmation of arrangement of reinforcement table, Reinforcing bar connection uses electric arc overlap welding, electroslag pressure welding, the compound job specfication of the lap of splice and design requirement, and reinforcing bar connects test specimen After inspection is qualified, reinforcing bar binding can be carried out, reinforcing bar system peace is preceding to carry out concrete pad, bottom plate according to each portion for protective layer thickness Top layer reinforcing bar sets bearing rod support;
Step 2: template support
The positions such as bottom plate exterior sheathing and local reserved opening are all made of plank sheathing, and template is supported using scaffold tube, prevented Rise mould;
Step 3: concrete placings
Concrete placings use commerical ready-mixed concrete, mixer truck transport, automotive pump pumping, automotive pump average output 50m3/ h, is stirred Mix appearance of vehicle amount 12m3.A fortune outfit vehicle is calculated as follows:
N=Q1/V(L/S+Tt)
N-concrete mixing and transporting car number of units;
Q1Actual average output quantity (the m of-every concrete pump3/ h), take 50m3/h;
Capacity (the m of the agitator truck of V-every3), take 12m3
S-concrete mixer truck average speeds (Km/h), takes 20-40Km/h;
L-concrete mixer truck apart from (Km), takes 30Km back and forth;
Tt- every concrete mixing and transporting car amounts to idle hours h, takes 1.2h.
Step 4: concreting uses step placement layer by layer
Big bottom plate uses step placement layer by layer, and every layer pours thickness control in 20-40cm, conveys concrete using 1 pump truck Material divides 2 to 15 meters of right bank along pump chamber left bank and pours section, and every layer pours thickness control in 30cm, pour sequence for from north to South Platform stepwise pours;
Vibrated using internal vibration stick, vibrating spear insertion point wants evenly distributed, mobile spacing 50cm, pay attention to when vibrating with Guarantee 3cm between template, vibrating spear is avoided to contact template;
Step 5: concrete work modifies bottom plate surface layer plastering, and the plastering personnel that close a position when layer concrete pours should be according to survey The relief that amount personnel give carries out surface evening, and floating rule strikes off, and mends the flat height in bottom in time;It is just smeared to electricity consumption finisher before initial set, Twice of last artificial receipts face, plastic cloth covering.
In the present embodiment, the construction characteristic of mass concrete: first is that globality requires height, do not allow to generate construction cold It stitches, in the present invention, by the way of continuous placing, it is possible to prevente effectively from cold seam of constructing, second is that the scale of construction of structure is larger, after pouring The aquation heat that generates of concrete it is big, and accumulate in inside and be not easy to distribute, to form the inside and outside biggish temperature difference, cause larger Thermal (temperature difference) stress.Therefore, when mass concrete construction, to guarantee that the globality of structure should rationally determine concreting side Case;Position guarantees that construction quality should take effective technical measures to reduce temperature difference between inside and outside concrete.
It, should be in next layer concrete to avoid generating cold seam of constructing in order to guarantee that concreting work can be carried out continuously Before initial set, a upper layer concrete is poured to smash finishes.
In the present embodiment, the intensity of concrete pad is not less than casting concrete design strength in the step 1.
In the present embodiment, a certain amount of flyash is added in production in the concrete, and equivalent replaces cement;
The main flyash of admixture in pump concrete is added in flyash, replaces part of cement, reduces cement consumption, The heat of hydration is reduced, the workability of concrete mix can be improved, improve the mobility of concrete, be conducive to pump, incorporation Control is excessively unfavorable for concrete strength 17%.
In the present embodiment, the concreting automobile, which is pumped into mould, casting process, must connect progress.
In the present embodiment, efficient retardation water reducing agent is mixed by the raw concrete China and foreign countries;
It mixes such as a certain amount of efficient retardation water reducing agent, improves the workability of concrete, reduce mixing water amount, reduce water Glue ratio, while the time of concrete temperature peak value appearance has been postponed, it has been correspondingly improved the allowable tensile stress with age, meanwhile, Efficient retardation water reducing agent is mixed outside, can save the usage amount of cement, extends retarding time, postpones hydrated cementitious thermal peak, to mixed Solidifying soil, which is shunk, compensation function, and the crack resistance of concrete can be improved.
In the present embodiment, in order to avoid cold seam of constructing, the mode of Ying Caiyong continuous placing in the step 4.
In the present embodiment, the disqualified concrete to have put in storage is needed to remove in time in the step 4.
In the present embodiment, forbids to add water in storehouse when casting concrete in the step 4, such as find concrete workability It must take that reinforcement is vibrated when poor and wait measures to guarantee concrete quality.
In the present embodiment, the concrete poured in putting in storage in the step 4 should be accumulated in storehouse with must not close a position, if having thick Aggregate should be evenly distributed with mortar when stacking compared with many places, but not handy cement mortar covering, in order to avoid cause internal cellular.
Insulation quilt or straw screen or mat heat preservation are covered in the present embodiment, in the step 4 outside plastic cloth.
Beneficial effects of the present invention:
1, in the present invention, by continuous placing, it is possible to prevente effectively from the presence for cold seam of constructing, meanwhile, using effective skill Art measure reduces temperature difference between inside and outside concrete.
2, in the present invention, by optimised coagulation soil ratio, low-heat portland cement in selecting of starting with from raw material is strong meeting Under the indices such as degree, cement consumption is reduced, it is appropriate to increase flyash dosage, the ratio of mud is controlled, the heat of hydration is reduced.
3, in the present invention, reasonable arrangement pours the time, reduces the concrete warehousing time, while guaranteeing out-of-machine temperature and putting in storage Temperature is not less than 5 DEG C.
4, in the present invention, placement layer by layer controls thickness, and extension pours the time, is conducive to the heat dissipation of concrete.
5, in the present invention, covering and heat insulating layer controls the temperature difference and surface and atmosphere temperature-difference in concrete table.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of construction method of casting of concrete in mass, specific construction procedure are as follows:
Step 1: the purchasing of raw materials
(1) material selects: the stringent model kind by construction drawing design requirement, quantity progress reinforcing bar buying, and when buying should have Product certificate and bill of materials.
(2) material tests: inspection is sampled by batch, pass the test rear can be used;
(3) material stores: reinforcing bar stores classifiedly, and lower part, which is set, erects Dun Qiang, and must not be hidden with waterproof cloth directly with ground face contact Lid, to slow down rebar surface corrosion or be contaminated.
(4) material prepares and constructs: pressing design drawing blanking, reinforcing bar after Steel Reinforcing Bar Material pronucleus is errorless to arrangement of reinforcement and the confirmation of arrangement of reinforcement table Connection uses electric arc overlap welding, electroslag pressure welding, the compound job specfication of the lap of splice and design requirement, and reinforcing bar connects test specimen inspection After qualification, reinforcing bar binding can be carried out, reinforcing bar system peace is preceding to carry out concrete pad, bottom plate top layer according to each portion for protective layer thickness Reinforcing bar sets bearing rod support;
Step 2: template support
The positions such as bottom plate exterior sheathing and local reserved opening are all made of plank sheathing, and template is supported using scaffold tube, prevent the mould that rises;
Step 3: concrete placings
Concrete placings use commerical ready-mixed concrete, mixer truck transport, automotive pump pumping, automotive pump average output 50m3/ h stirs appearance of vehicle Measure 12m3.A fortune outfit vehicle is calculated as follows:
N=Q1/V(L/S+Tt)
N-concrete mixing and transporting car number of units;
Q1Actual average output quantity (the m of-every concrete pump3/ h), take 50m3/h;
Capacity (the m of the agitator truck of V-every3), take 12m3
S-concrete mixer truck average speeds (Km/h), takes 20-40Km/h;
L-concrete mixer truck apart from (Km), takes 30Km back and forth;
Tt- every concrete mixing and transporting car amounts to idle hours h, takes 1.2h.
Step 4: concreting uses step placement layer by layer
Big bottom plate uses step placement layer by layer, and every layer pours thickness control in 20-40cm, conveys concrete material, edge using 1 pump truck Pump chamber left bank divides 2 to 15 meters of right bank and pours section, and every layer pours thickness control in 30cm, pours sequence as from north to South Platform rank Formula pours;
It is vibrated using internal vibration stick, vibrating spear insertion point wants evenly distributed, mobile spacing 50cm, pays attention to when vibrating and template Between guarantee 3cm, avoid vibrating spear contact template;
Step 5: concrete work finishing
Bottom plate surface layer plastering, the plastering personnel that close a position when layer concrete pours should carry out surface according to the relief that survey crew gives Leveling, floating rule strike off, and mend the flat height in bottom in time;It is just smeared to electricity consumption finisher before initial set, twice of last artificial receipts face, plastic cloth covers Lid.
2. the construction method of casting of concrete in mass according to claim 1, which is characterized in that mixed in the step 1 The intensity of solidifying soil cushion block is not less than casting concrete design strength.
3. the construction method of casting of concrete in mass according to claim 1, which is characterized in that the concrete is in life When production, a certain amount of flyash is added, equivalent replaces cement.
4. the construction method of casting of concrete in mass according to claim 1, which is characterized in that the concreting Automobile, which is pumped into mould, casting process, must connect progress.
5. the construction method of casting of concrete in mass according to claim 1, which is characterized in that the raw concrete Mix efficient retardation water reducing agent in China and foreign countries.
6. the construction method of casting of concrete in mass according to claim 1, which is characterized in that be in the step 4 Avoid cold seam of constructing, the mode of Ying Caiyong continuous placing.
7. the construction method of casting of concrete in mass according to claim 1, which is characterized in that right in the step 4 It needs to remove in time in the disqualified concrete to have put in storage.
8. the construction method of casting of concrete in mass according to claim 1, which is characterized in that poured in the step 4 Forbid to add water in storehouse when building concrete, such as finds reinforcement must be taken to vibrate measure to guarantee when concrete workability is poor Concrete quality.
9. the construction method of casting of concrete in mass according to claim 1, which is characterized in that poured in the step 4 Concrete in putting in storage should be accumulated in storehouse with must not close a position, if having should be evenly distributed when coarse aggregate stacking it is more with mortar Place, but not handy cement mortar covering, in order to avoid cause internal cellular.
10. the construction method of casting of concrete in mass according to claim 1, which is characterized in that in the step 4 Insulation quilt or straw screen or mat heat preservation are covered outside plastic cloth.
CN201910763599.7A 2019-08-19 2019-08-19 A kind of construction method of casting of concrete in mass Pending CN110424739A (en)

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN111395269A (en) * 2020-03-25 2020-07-10 中国水利水电第四工程局有限公司 Concrete construction method capable of eliminating air bubbles at bottom of spherical key groove of arch dam transverse joint
CN113338177A (en) * 2021-06-15 2021-09-03 广州市公路工程公司 Small-volume concrete pouring process and device
CN113431072A (en) * 2021-07-05 2021-09-24 广东省第一建筑工程有限公司 Super-long thick complex foundation bottom plate concrete seamless construction method
CN113863309A (en) * 2021-10-29 2021-12-31 华能江西清洁能源有限责任公司 Concrete pouring method for wind driven generator foundation under mountain land condition
CN115324349A (en) * 2022-06-24 2022-11-11 中国建筑第七工程局有限公司 Construction method for mass concrete of linear accelerator

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CN106836808A (en) * 2017-02-21 2017-06-13 中建二局第三建筑工程有限公司 Self-compaction mass concrete construction method

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111395269A (en) * 2020-03-25 2020-07-10 中国水利水电第四工程局有限公司 Concrete construction method capable of eliminating air bubbles at bottom of spherical key groove of arch dam transverse joint
CN111395269B (en) * 2020-03-25 2021-10-08 中国水利水电第四工程局有限公司 Concrete construction method capable of eliminating air bubbles at bottom of spherical key groove of arch dam transverse joint
CN113338177A (en) * 2021-06-15 2021-09-03 广州市公路工程公司 Small-volume concrete pouring process and device
CN113431072A (en) * 2021-07-05 2021-09-24 广东省第一建筑工程有限公司 Super-long thick complex foundation bottom plate concrete seamless construction method
CN113863309A (en) * 2021-10-29 2021-12-31 华能江西清洁能源有限责任公司 Concrete pouring method for wind driven generator foundation under mountain land condition
CN115324349A (en) * 2022-06-24 2022-11-11 中国建筑第七工程局有限公司 Construction method for mass concrete of linear accelerator

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