CN103437344A - Pile foundation reinforcing cage structure and construction technology thereof - Google Patents
Pile foundation reinforcing cage structure and construction technology thereof Download PDFInfo
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- CN103437344A CN103437344A CN2013103802137A CN201310380213A CN103437344A CN 103437344 A CN103437344 A CN 103437344A CN 2013103802137 A CN2013103802137 A CN 2013103802137A CN 201310380213 A CN201310380213 A CN 201310380213A CN 103437344 A CN103437344 A CN 103437344A
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Abstract
The invention discloses a pile foundation reinforcing cage structure and relates to the assembly technology of pile foundation reinforcing cages. The pile foundation reinforcing cage structure comprises a jig frame (1) and a reinforcing cage (2). The reinforcing cage (2) comprises a first reinforcing cage segment (3), a second reinforcing cage segment (4), first longitudinal rebars (31), second longitudinal rebars (41) and sleeves (6) with the interiors provided with internal threads. The two ends of the sleeves (6) are connected with the first longitudinal rebars (31) and the second longitudinal rebars (41) through the threads respectively. The jig frame (1) comprises a base (7) and arc-shaped supporting plates (8), supporting columns (9) are connected to the lower portions of the two ends of each arc-shaped supporting plate (8), and the bottom ends of the supporting columns (9) are fixed on the base (7). The pile foundation reinforcing cage structure is convenient and fast to install, higher in structural stability, short in construction period and strong in quality controllability, moreover, the butt joints of the reinforcing cage are continuous and high in precision. The invention further discloses a construction technology of the pile foundation reinforcing cage structure.
Description
Technical field
The present invention relates to the package technique of pile foundation steel bar cage, a kind of pile foundation steel bar cage structure specifically, the invention still further relates to the construction technology of this pile foundation steel bar cage structure.
Background technology
Development along with bridge technology, bridge across footpath progressively increases greatly, major diameter, overlength pile foundation steel bar cage more and more are employed in design, and pile foundation steel bar cage also has that diameter is large thereupon, Heavy Weight, length is long, bar splice is many, merogenesis docks the characteristics that wait often.Because the on-the-spot installation period of the reinforcing cage of major diameter, overlength pile foundation is long, therefore, when the assembling pile foundation steel bar cage, reinforcing cage precipitates too much problem at the bottom of collapse hole, hole easily occurring producing, and the problem that has hidden danger of quality.
Simultaneously, existing pile foundation steel bar cage is processing and fabricating on the precast beam pedestal normally, and without the standard moulding bed, after processing, reinforcing cage carries out again next procedure, but there is following shortcoming in this operation: 1. the moulding bed that there is no fixed standard, reinforcing cage colligation and assembling process are comparatively complicated, and the reinforcing cage of making is uneven on the whole, and the reinforcing cage quality of making is low; 2. precast beam pedestal space is less, higher apart from ground, the danger of constructor's working environment.3. the reinforcing cage material needs hoisting transportation to the precast beam pedestal, and the process Occupation time of transportation is longer.
Summary of the invention
One of them purpose of the present invention is in order to overcome the weak point of background technology, and a kind of pile foundation steel bar cage structure is provided.
Another object of the present invention is in order to overcome the weak point of background technology, and the construction technology of this pile foundation steel bar cage structure is provided.
To achieve these goals, technical scheme of the present invention is: the pile foundation steel bar cage structure, comprise moulding bed and set up the reinforcing cage on moulding bed, described reinforcing cage comprises the first sections reinforcing cage and the second sections reinforcing cage of adjacent layout, the first sections reinforcing cage comprises some the first longitudinal reinforcements that are round, the second sections reinforcing cage comprises some the second longitudinal reinforcements that are round, it is characterized in that: described reinforcing cage also comprises that inside is provided with the sleeve of internal thread, the two ends of the two ends of described the first longitudinal reinforcement and the second longitudinal reinforcement are equipped with external screw thread, the two ends of described sleeve are threaded with the first longitudinal reinforcement and the second longitudinal reinforcement respectively, described moulding bed comprises the arc pallet of the outer wall coupling of base and a plurality of and reinforcing cage, and the bottom, two ends of each arc pallet is connected with support column, and the bottom of support column is fixed on base.
In technique scheme, the present invention is applicable to the long L >=27m of stake, stake footpath φ >=1m pile foundation steel bar cage construction works, it can effectively solve super long pile base reinforcing cage processing difficulties, and long causing of installation period precipitated too much and the construction quality hidden danger occurred at the bottom of collapse hole, hole.
The present invention is convenient and swift when mounted, and structural stability is higher, and not only short construction period, quality controllability are strong, and the banjo fixing butt jointing of reinforcing cage is continuous, and the banjo fixing butt jointing precision is high.
The shell of described sleeve is provided with the rolling decorative pattern.
In technique scheme, the rolling decorative pattern can make the convenient rotational sleeve of staff.
The upper end of described arc pallet is provided with some spaced apart reinforcement bar standing grooves.
In technique scheme, the reinforcement bar standing groove can make reinforcing cage better be fixed on arc pallet.
Described base comprises two base plates that are arranged in parallel, and the bottom of support column is fixed on base plate.
In technique scheme, base is divided into to two base plates that are arranged in parallel, can make cost of the present invention lower.
One or more in described base plate, arc pallet and support column are angle steel.
In technique scheme, angle steel can further reduce cost of the present invention.
Another object of the present invention is achieved by the following technical solution: the construction technology of pile foundation steel bar cage structure, it comprises the following steps, 1. process levelling of the land, sclerosis, require to carry out smooth to the processing place according to function zoning, length of reinforcing cage and traffic; The processing place adopts concrete to be hardened, and weathering is set; 2. arrange moulding bed, adopt the mode of pre-buried or expansion bolt, will fix on the ground with the moulding bed of base and arc pallet; 3. the processing of reinforcing bar, carry out tack and roll extrusion external screw thread to the end of reinforcing bar and process, and the not straight reinforcing bar straightening in advance to end, and the end face of reinforcing bar otch should be vertical with axis, guarantees not have the shape of a hoof or deflection; 4. three sections reinforcing cages are processed continuously in the processing of sections reinforcing cage on moulding bed, and the sections reinforcing cage of adjacent layout is carried out to the check of silk head and joint test, and the reinforcing bar on adjacent sections reinforcing cage connects by sleeve; 5. the processing of pile foundation steel bar cage, the first sections reinforcing cage and second stage reinforcing cage are taken apart at the link position place, and using the first segment of the first sections reinforcing cage as reinforcing cage, then the second sections reinforcing cage and the 3rd sections reinforcing cage linked together of take is basis, process next sections reinforcing cage, the rest may be inferred, completes the processing of pile foundation steel bar cage according to above step; 6. the depositing, transport of sections reinforcing cage, leave the above-mentioned sections reinforcing cage processed on smooth, dry place in order, and mark painted by the reinforcing bar on the adjacent segment reinforcing cage so that field joint hangs up sign board on each sections reinforcing cage simultaneously; After the reinforcing cage jointing splits, the reinforcing steel bars exposed screw thread must adopt the protective sleeve protection, prevents the screw thread damage; 7. the transferring and docking of sections reinforcing cage, the sections reinforcing cage adopts special hanger lift transhipment, prevents from being out of shape; The sections reinforcing cage when mounted, adopts gantry crane, crawler crane or other loop wheel machine merogenesis to transfer, and adopts mechanical connection spreading sections reinforcing cage; The sections reinforcing cage transfer put in place rear to location, its top, reinforcing cage skew, floating while preventing pour concrete.
In technique scheme, the present invention is prefabricated continuously in the precasting yard batch production, its short construction period, and quality controllability is strong; Adopt segmented prefabricatedly, utilize last sections for fixed form, continuously, the banjo fixing butt jointing precision is high in the joint docking; Reinforcing bar adopts sleeve to connect, and it is more convenient to process, and operates simpler.
The present invention is not only simple to operate, and overall structure is unified, meets unified standard.Moulding bed can be installed on the ground, can be constructed on the ground, and compared with prior art, working environment is broad, has good security performance.After assembling steel reinforcement cage completes, once lift to the beam pedestal, can reduce cost of transportation.The present invention also has advantages of compactness simple for structure, cheap for manufacturing cost and easy to use.
Compared with prior art, its advantage is in the present invention:
1. because reinforcing cage is that batch production is prefabricated continuously in precasting yard, short construction period, quality controllability is strong;
2. adopt segmented prefabricatedly due to the present invention, utilize last sections for fixed form, banjo fixing butt jointing is continuous, and the banjo fixing butt jointing precision is high;
3. reinforcing bar adopts sleeve to connect, and technique advanced person is quick and easy for installation.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The structural representation that Fig. 2 is moulding bed of the present invention.
1-moulding bed in figure, 2-reinforcing cage, 3-the first sections reinforcing cage, 31-the first longitudinal reinforcement, 4-second stage reinforcing cage, 41-the second longitudinal reinforcement, 5-the 3rd sections reinforcing cage, 6-sleeve, 7-base, 71-base plate, 8-arc pallet, 9-support column.
The specific embodiment
Describe performance of the present invention in detail below in conjunction with accompanying drawing, but they do not form limitation of the invention, only for example.By explanation, make advantage of the present invention more know and easily understand simultaneously.
Consult accompanying drawing known: as shown in Figure 1, the pile foundation steel bar cage structure, comprise moulding bed 1 and set up the reinforcing cage 2 on moulding bed 1, described reinforcing cage 2 comprises the first sections reinforcing cage 3 and the second sections reinforcing cage 4 of adjacent layout, the first sections reinforcing cage 3 comprises some the first longitudinal reinforcements 31 that are round, the second sections reinforcing cage 4 comprises some the second longitudinal reinforcements 23 that are round, it is characterized in that: described reinforcing cage 2 also comprises that inside is provided with the sleeve 6 of internal thread, the two ends of the two ends of described the first longitudinal reinforcement 31 and the second longitudinal reinforcement 41 are equipped with external screw thread, the two ends of described sleeve 6 are threaded with the first longitudinal reinforcement 31 and the second longitudinal reinforcement 42 respectively, described moulding bed 1 comprises the arc pallet 8 of the outer wall coupling of base 7 and a plurality of and reinforcing cage, and the bottom, two ends of each arc pallet 8 is connected with support column 9, and the bottom of support column 9 is fixed on base 7.
The present invention is applicable to the long L >=27m of stake, stake footpath φ >=1m pile foundation steel bar cage construction works, and it can not only effectively solve super long pile base reinforcing cage processing difficulties, and can solve that installation period is long causes at the bottom of collapse hole, hole precipitation too much and the construction quality hidden danger occurred.
The shell of described sleeve 5 is provided with the rolling decorative pattern.The rolling decorative pattern can make the convenient rotational sleeve of staff.The upper end of described arc pallet 8 is provided with some spaced apart reinforcement bar standing grooves.The reinforcement bar standing groove can make reinforcing cage better be fixed on arc pallet.
Described base 7 comprises two base plates that are arranged in parallel 71, and the bottom of support column 9 is fixed on base plate 71.One or more in described base plate 71, arc pallet 8 and support column 9 are angle steel.Angle steel can further reduce cost of the present invention.
The present invention includes following steps:
1. process levelling of the land, sclerosis, require to carry out smooth to the processing place according to function zoning, reinforcing cage 2 length and traffic; The processing place adopts concrete to be hardened, and weathering is set;
2. arrange moulding bed, adopt the mode of pre-buried or expansion bolt, will fix on the ground with the moulding bed 1 of base 7 and arc pallet 8;
3. the processing of reinforcing bar, carry out tack and roll extrusion external screw thread to the end of reinforcing bar and process, and the not straight reinforcing bar straightening in advance to end, and the end face of reinforcing bar otch should be vertical with axis, guarantees not have the shape of a hoof or deflection;
4. three sections reinforcing cages are processed continuously in the processing of sections reinforcing cage on moulding bed, and the sections reinforcing cage of adjacent layout is carried out to the check of silk head and joint test, and the reinforcing bar on adjacent sections reinforcing cage connects by sleeve;
5. the processing of pile foundation steel bar cage, the first sections reinforcing cage 3 and second stage reinforcing cage 4 are taken apart at the link position place, and using the first segment of the first sections reinforcing cage 3 as reinforcing cage 2, then the second sections reinforcing cage 4 and the 3rd sections reinforcing cage 5 linked together of take is basis, process next sections reinforcing cage, the rest may be inferred, completes the processing of sections reinforcing cage according to above step;
6. the depositing, transport of sections reinforcing cage, leave the above-mentioned sections reinforcing cage processed on smooth, dry place in order, and mark painted by the reinforcing bar on the adjacent segment reinforcing cage so that field joint hangs up sign board on each sections reinforcing cage simultaneously; After the reinforcing cage jointing splits, the reinforcing steel bars exposed screw thread must adopt the protective sleeve protection, prevents the screw thread damage;
7. the transferring and docking of sections reinforcing cage, the sections reinforcing cage adopts special hanger lift transhipment, prevents from being out of shape; The sections reinforcing cage when mounted, adopts gantry crane, crawler crane or other loop wheel machine merogenesis to transfer, and adopts mechanical connection spreading sections reinforcing cage; The sections reinforcing cage transfer put in place rear to location, its top, reinforcing cage skew, floating while preventing pour concrete.
The present invention is prefabricated continuously in the precasting yard batch production, its short construction period, and quality controllability is strong; Adopt segmented prefabricatedly, utilize last sections for fixed form, continuously, the banjo fixing butt jointing precision is high in the joint docking; Reinforcing bar adopts sleeve to connect, and it is more convenient to process, and operates simpler.
The present invention is simple in structure, and cost is lower, quick and easy for installation, and structural stability is higher, and not only short construction period, quality controllability are strong, and the banjo fixing butt jointing of reinforcing cage is continuous, and the banjo fixing butt jointing precision is high.
The present invention has following points for attention when making:
1. the shape fibrous root of arc pallet 2 is arranged according to reinforcing cage size, reinforcing cage main reinforce position.
2. according to length of reinforcing cage, on-the-spot installation period, construction period, one to two reinforcing cage moulding bed rationally is set.
3. indeformable for guaranteeing in the prefabricated process of reinforcing cage, moulding bed is arranged according to being no more than the 2m spacing.
Use the transit control axis when 4. the reinforcing bar moulding bed is installed fixedly, the level gauge elevation control, guarantee that the axis of steel bar positioning frame is on the same line.
Reinforcing bar of the present invention in the points for attention that add man-hour is:
1. the not straight reinforcing bar straightening in advance to end, by the rules requirement, the end face of otch should be vertical with axis, and the shape of a hoof or deflection must not be arranged.
2. a silk processing length is the length silk, and one be 1/2 of standard type length sleeve, and other end is the standard type length sleeve, its tolerance is+2P(P is pitch).
3. the silk head of passed examination should be protected, and add the band protective cap in its termination or tighten with sleeve, and neat by the specification classify and pile up.
Reinforcing cage processing points for attention of the present invention:
1. carry out again the coiling of spiral bar after main muscle installation, in the scope of each sections reinforcing cage joint section each 2.0m of two ends, wouldn't arrange spiral bar, after treating that on-the-spot reinforcing cage joint docking is checked and accepted, then carry out colligation.
2. be out of shape for preventing that reinforcing cage from hanging in peace and transportation, except the φ 32 settled by the designing requirement hoop of putting more energy into, can also in per pass is put more energy into hoop, weld the triangular form brace rod.
3. reinforcing cage prefabricated with groove after, carry out the installation of sound detecting pipe.The merogenesis length of sound detecting pipe is consistent with the merogenesis situation of reinforcing cage.Between sound detecting pipe and reinforcing cage, every the 2m left and right, with " U " type card, fixed.Stopper plug sealing for the detector tube upper port, lower end bulkhead welded seal, forbid cement paste or foreign material to enter in pipe, guarantee filling concrete after pipeline unimpeded.
Other unaccounted part all belongs to prior art.
Claims (6)
1. pile foundation steel bar cage structure, comprise moulding bed (1) and set up the reinforcing cage (2) on moulding bed (1), described reinforcing cage (2) comprises the first sections reinforcing cage (3) and the second sections reinforcing cage (4) of adjacent layout, the first sections reinforcing cage (3) comprises some the first longitudinal reinforcements (31) that are round, the second sections reinforcing cage (4) comprises some the second longitudinal reinforcements (23) that are round, it is characterized in that: described reinforcing cage (2) also comprises that inside is provided with the sleeve of internal thread (6), the two ends of the two ends of described the first longitudinal reinforcement (31) and the second longitudinal reinforcement (41) are equipped with external screw thread, the two ends of described sleeve (6) are threaded with the first longitudinal reinforcement (31) and the second longitudinal reinforcement (42) respectively, described moulding bed (1) comprises the arc pallet (8) of the outer wall coupling of base (7) and a plurality of and reinforcing cage, the bottom, two ends of each arc pallet (8) is connected with support column (9), and the bottom of support column (9) is fixed on base (7).
2. pile foundation steel bar cage structure according to claim 1, it is characterized in that: the shell of described sleeve (5) is provided with the rolling decorative pattern.
3. pile foundation steel bar cage structure according to claim 1, it is characterized in that: the upper end of described arc pallet (8) is provided with some spaced apart reinforcement bar standing grooves.
4. pile foundation steel bar cage structure according to claim 1, it is characterized in that: described base (7) comprises two base plates that are arranged in parallel (71), the bottom of support column (9) is fixed on base plate (71).
5. according to the pile foundation steel bar cage structure described in claim 4, it is characterized in that: one or more for angle steel in described base plate (71), arc pallet (8) and support column (9).
6. according to the construction technology of the described pile foundation steel bar cage structure of arbitrary claim in claim 1-5, it is characterized in that: it comprises the following steps,
1. process levelling of the land, sclerosis,
According to function zoning, reinforcing cage (2) length and traffic, require to carry out smooth to the processing place; The processing place adopts concrete to be hardened, and weathering is set;
2. arrange moulding bed,
Adopt the mode of pre-buried or expansion bolt, will fix on the ground with the moulding bed (1) of base (7) and arc pallet (8);
3. the processing of reinforcing bar,
Tack and roll extrusion external screw thread are carried out in the end of reinforcing bar and process, and the not straight reinforcing bar straightening in advance to end, the end face of reinforcing bar otch should be vertical with axis, guarantees not have the shape of a hoof or deflection;
4. the processing of sections reinforcing cage,
Process continuously three sections reinforcing cages on moulding bed, and the sections reinforcing cage of adjacent layout is carried out to the check of silk head and joint test, the reinforcing bar on adjacent sections reinforcing cage connects by sleeve;
5. the processing of pile foundation steel bar cage,
The first sections reinforcing cage (3) and second stage reinforcing cage (4) are taken apart at the link position place, and using the first segment of the first sections reinforcing cage (3) as reinforcing cage (2), then the second sections reinforcing cage (4) and the 3rd sections reinforcing cage (5) linked together of take is basis, process next sections reinforcing cage, the rest may be inferred, completes the processing of pile foundation steel bar cage according to above step;
6. the depositing, transport of sections reinforcing cage,
The above-mentioned sections reinforcing cage processed is left on smooth, dry place in order, and mark painted by the reinforcing bar on the adjacent segment reinforcing cage so that field joint hangs up sign board on each sections reinforcing cage simultaneously; After the reinforcing cage jointing splits, the reinforcing steel bars exposed screw thread must adopt the protective sleeve protection, prevents the screw thread damage;
7. the transferring and docking of sections reinforcing cage,
The sections reinforcing cage adopts special hanger to lift transhipment, prevents distortion; The sections reinforcing cage when mounted, adopts gantry crane, crawler crane or other loop wheel machine merogenesis to transfer, and adopts mechanical connection spreading sections reinforcing cage; The sections reinforcing cage transfer put in place rear to location, its top, reinforcing cage skew, floating while preventing pour concrete.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104818675A (en) * | 2015-02-13 | 2015-08-05 | 中交路桥华南工程有限公司 | Assembling method of rebar segments |
| CN105401581A (en) * | 2015-12-25 | 2016-03-16 | 上海公路投资建设发展有限公司 | Reinforcement cage hanging device and reinforcement cage splicing method |
| CN105839851A (en) * | 2016-04-13 | 2016-08-10 | 江苏华江建设集团有限公司 | Construction method of prefabricated frame column formed by using split connection |
| CN107989273A (en) * | 2017-12-19 | 2018-05-04 | 苏州市世好建材新技术工程有限公司 | A kind of precast wall body steel reinforcement cage attachment device |
| CN108193888A (en) * | 2017-12-29 | 2018-06-22 | 中交路桥华南工程有限公司 | Pile foundation steel bar cage construction moulding bed |
| CN108755663A (en) * | 2018-05-07 | 2018-11-06 | 安徽省公路桥梁工程有限公司 | A kind of great diameter and long variable cross-section bored pile construction method |
| CN109018640A (en) * | 2018-07-23 | 2018-12-18 | 中铁大桥局第七工程有限公司 | It is a kind of for storing the storage pedestal of different size steel reinforcement cage |
| CN110206304A (en) * | 2019-05-18 | 2019-09-06 | 陕西建工第五建设集团有限公司 | A kind of steel reinforcement cage lateral assembling structure integrated with steel form |
| CN110258566A (en) * | 2019-05-23 | 2019-09-20 | 中国一冶集团有限公司 | A kind of segmented steel reinforcement cage positioning device and its application method |
| CN111254963A (en) * | 2020-03-23 | 2020-06-09 | 苏元凯 | Building foundation is with prefabricated assembled steel reinforcement cage structure |
| CN112081307A (en) * | 2020-09-29 | 2020-12-15 | 中冶建工集团重庆钢结构有限公司 | Method for forming stiff column by externally planting reinforcement cages in pile holes of cross-shaped steel column |
| CN113605375A (en) * | 2021-09-18 | 2021-11-05 | 中国建筑技术集团有限公司 | Slow-setting connecting device, anti-floating pile and hoisting method of anti-floating pile |
| CN113756291A (en) * | 2021-10-12 | 2021-12-07 | 上海东华建设管理有限公司 | Assembling construction method for cast-in-place pile reinforcement cage |
| CN114164823A (en) * | 2021-11-10 | 2022-03-11 | 中交第四航务工程局有限公司 | Pile foundation construction method in high-fill foundation |
| CN114293475A (en) * | 2021-12-31 | 2022-04-08 | 中交路桥华南工程有限公司 | Split ring sleeving construction method for variable-section large-section pier tower reinforcement cage segment |
| CN114855779A (en) * | 2022-06-20 | 2022-08-05 | 中国十九冶集团有限公司 | Pile foundation reinforcement cage preparation method |
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| CN104818675A (en) * | 2015-02-13 | 2015-08-05 | 中交路桥华南工程有限公司 | Assembling method of rebar segments |
| CN105401581A (en) * | 2015-12-25 | 2016-03-16 | 上海公路投资建设发展有限公司 | Reinforcement cage hanging device and reinforcement cage splicing method |
| CN105401581B (en) * | 2015-12-25 | 2017-04-19 | 上海公路投资建设发展有限公司 | Reinforcement cage hanging device and reinforcement cage splicing method |
| CN105839851A (en) * | 2016-04-13 | 2016-08-10 | 江苏华江建设集团有限公司 | Construction method of prefabricated frame column formed by using split connection |
| CN107989273A (en) * | 2017-12-19 | 2018-05-04 | 苏州市世好建材新技术工程有限公司 | A kind of precast wall body steel reinforcement cage attachment device |
| CN108193888A (en) * | 2017-12-29 | 2018-06-22 | 中交路桥华南工程有限公司 | Pile foundation steel bar cage construction moulding bed |
| CN108755663B (en) * | 2018-05-07 | 2020-03-27 | 安徽省公路桥梁工程有限公司 | Construction method of large-diameter overlong variable-cross-section cast-in-situ bored pile |
| CN108755663A (en) * | 2018-05-07 | 2018-11-06 | 安徽省公路桥梁工程有限公司 | A kind of great diameter and long variable cross-section bored pile construction method |
| CN109018640A (en) * | 2018-07-23 | 2018-12-18 | 中铁大桥局第七工程有限公司 | It is a kind of for storing the storage pedestal of different size steel reinforcement cage |
| CN110206304B (en) * | 2019-05-18 | 2021-03-05 | 陕西建工第五建设集团有限公司 | Transverse assembling structure integrating steel reinforcement cage and steel formwork |
| CN110206304A (en) * | 2019-05-18 | 2019-09-06 | 陕西建工第五建设集团有限公司 | A kind of steel reinforcement cage lateral assembling structure integrated with steel form |
| CN110258566A (en) * | 2019-05-23 | 2019-09-20 | 中国一冶集团有限公司 | A kind of segmented steel reinforcement cage positioning device and its application method |
| CN111254963A (en) * | 2020-03-23 | 2020-06-09 | 苏元凯 | Building foundation is with prefabricated assembled steel reinforcement cage structure |
| CN111254963B (en) * | 2020-03-23 | 2021-11-30 | 中铁建设集团西安工程有限公司 | Building foundation is with prefabricated assembled steel reinforcement cage structure |
| CN112081307A (en) * | 2020-09-29 | 2020-12-15 | 中冶建工集团重庆钢结构有限公司 | Method for forming stiff column by externally planting reinforcement cages in pile holes of cross-shaped steel column |
| CN112081307B (en) * | 2020-09-29 | 2021-09-07 | 中冶建工集团重庆钢结构有限公司 | Method for forming stiff column by externally planting reinforcement cages in pile holes of cross-shaped steel column |
| CN113605375A (en) * | 2021-09-18 | 2021-11-05 | 中国建筑技术集团有限公司 | Slow-setting connecting device, anti-floating pile and hoisting method of anti-floating pile |
| CN113756291A (en) * | 2021-10-12 | 2021-12-07 | 上海东华建设管理有限公司 | Assembling construction method for cast-in-place pile reinforcement cage |
| CN114164823A (en) * | 2021-11-10 | 2022-03-11 | 中交第四航务工程局有限公司 | Pile foundation construction method in high-fill foundation |
| CN114293475A (en) * | 2021-12-31 | 2022-04-08 | 中交路桥华南工程有限公司 | Split ring sleeving construction method for variable-section large-section pier tower reinforcement cage segment |
| CN114855779A (en) * | 2022-06-20 | 2022-08-05 | 中国十九冶集团有限公司 | Pile foundation reinforcement cage preparation method |
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Application publication date: 20131211 |