CN114059578A - Adjustable construction elevator foundation back jacking device and construction method - Google Patents
Adjustable construction elevator foundation back jacking device and construction method Download PDFInfo
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- CN114059578A CN114059578A CN202111252057.7A CN202111252057A CN114059578A CN 114059578 A CN114059578 A CN 114059578A CN 202111252057 A CN202111252057 A CN 202111252057A CN 114059578 A CN114059578 A CN 114059578A
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- 238000010276 construction Methods 0.000 title claims abstract description 37
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 238000009415 formwork Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 239000003351 stiffener Substances 0.000 claims description 2
- 230000010485 coping Effects 0.000 claims 7
- 238000010586 diagram Methods 0.000 description 8
- 230000002787 reinforcement Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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Abstract
The invention discloses an adjustable construction elevator foundation back-jacking device and a construction method, wherein the top of the back-jacking device is connected with a basement top plate, the bottom of the back-jacking device is fixed on a foundation bottom plate, and the back-jacking device comprises: an adjusting structure and a fixing structure; the adjusting structure is arranged on the fixed structure and connected with the top plate of the basement; fixed knot that fixed knot structure adopted the fixed length festival to connect, adjusts the structure and includes: a first sub-regulation structure, a second sub-regulation structure and a third sub-regulation structure; the first sub-adjusting structure is connected with the top plate of the basement, the two ends of the second sub-adjusting structure are respectively connected with the first sub-adjusting structure and the third sub-adjusting structure in an adjustable mode, and the third sub-adjusting structure is installed on the fixed structure. Through setting up the regulation structure for this back of the head device's length adjustment convenience very has increased the efficiency of construction. The back-jacking device is arranged to be of a multi-section structure, so that the back-jacking device is convenient to install and dismantle and is convenient to transport and store.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an adjustable construction elevator foundation back-jacking device and a construction method.
Background
In the traditional construction, an integral lattice column back-jacking device is generally adopted to back-jack the construction elevator foundation, and the construction elevator foundation adopts a process of pouring reinforced concrete on a basement roof for the second time.
Patent CN201920271809 discloses a can have enough to meet need construction elevator basis and return to top reinforcing apparatus, it includes: adjust section, standard festival and basic festival, adjust the section including adjusting section lattice column, first regulation section head steel sheet and second regulation section head steel sheet, the standard festival includes standard festival lattice column and sets up in the standard festival head steel sheet at standard festival lattice column both ends, the basis festival includes basic festival lattice column, first basic festival head steel sheet and second basic festival head steel sheet. The adjusting section is connected with the standard section, and the standard section is connected with the basic section. The device's back-jacking length adjustment is very inconvenient, has influenced the efficiency of construction, and the unable turnover of back is demolishd to the device's regulation section is used, can only disposable, and is with high costs.
Disclosure of Invention
Aiming at the defects of the prior art, the invention designs an adjustable construction elevator foundation back-jacking device, the top of the back-jacking device is connected with a basement top plate, the bottom of the back-jacking device is fixed on a foundation bottom plate, and the back-jacking device comprises: an adjusting structure and a fixing structure; the adjusting structure is arranged on the fixed structure and connected with the top plate of the basement; fixed knot that fixed knot structure adopted the fixed length festival to connect, adjusts the structure and includes: a first sub-regulation structure, a second sub-regulation structure and a third sub-regulation structure; the one end and the basement roof of first sub-structure of adjusting are connected, and the other end and the one end adjustable connection of second sub-structure of adjusting of first sub-structure of adjusting are adjusted, and the other end and the one end adjustable connection of third sub-structure of adjusting of second sub-structure of adjusting are adjusted, and the other end that the structure was adjusted to the third sub-structure is installed on fixed knot constructs.
Preferably, the first sub regulation structure and the third sub regulation structure are symmetrical structures, wherein the first sub regulation structure includes: the first connecting piece, the first reinforcing piece, the first protection piece, the first support piece and the adjusting sleeve are arranged on the first support piece; the number of the first protection parts is two, the two first protection parts are respectively fixed at two ends of the first supporting part, one end of the first supporting part is fixedly arranged on the first connecting piece, the adjusting sleeve is fixedly arranged at the other end of the first supporting part, and the first reinforcing part is fixedly arranged at the connecting part of the first supporting part and the first connecting piece; the first connecting piece is connected with the top plate of the basement, and the adjusting sleeve is connected with the second sub-adjusting structure.
Preferably, the second sub regulation structure includes: the adjusting rod, the adjusting handle and the locknut; the adjusting handle is arranged in the middle of the adjusting rod, one end of the adjusting rod is provided with a first external thread, the other end of the adjusting rod is provided with a second external thread, the rotating directions of the first external thread and the second external thread are opposite, the number of the locknuts is two, the two locknuts are respectively arranged on the first external thread and the second external thread, the adjusting rod is adjustably connected with the first sub-adjusting structure through the first external thread, and the adjusting rod is adjustably connected with the third sub-adjusting structure through the second external thread.
Preferably, the fixed structure comprises a first standard knot and a second standard knot; the first standard knot is arranged above the second standard knot, the first standard knot is fixedly connected with the third sub-adjusting structure, and the second standard knot is fixed on the foundation slab.
Preferably, the first criteria section includes: a second connector, a second stiffener, a second guard, and a second support; the number of the second connecting pieces, the second reinforcing pieces and the second protection pieces is two, wherein the two groups of the second protection pieces are fixedly arranged at two ends of the second supporting piece, two ends of the second supporting piece are respectively arranged on the two groups of the second connecting pieces, and the second reinforcing pieces are arranged at the connecting positions of the second connecting pieces and the second supporting piece; and two ends of the first standard knot are fixedly connected with the second standard knot and the third sub-adjusting structure through second connecting pieces respectively.
Preferably, the second criteria section includes: the third connecting piece, the third reinforcing piece, the third protection piece and the third supporting piece; the length of the third supporting piece is one half of the length of the second supporting piece, and the height of the third protection piece is one half of the height of the second protection piece; the number of the third connecting pieces, the third reinforcing pieces and the third protection pieces is two, wherein the two groups of the third reinforcing pieces are fixedly arranged at two ends of the third supporting piece, two ends of the third supporting piece are respectively arranged on the two groups of the third connecting pieces, and the third reinforcing pieces are arranged at the connecting positions of the third connecting pieces and the third supporting piece; and two ends of the second standard knot are respectively fixedly connected with the first standard knot and the foundation slab through a third connecting piece.
Preferably, the back-jacking device further comprises a formwork support, the top of the formwork support is connected with the top plate of the basement, the bottom of the formwork support is fixed on the foundation bottom plate, and the top of the formwork support is fixedly connected with the adjusting structure.
Based on the unified design idea, the invention also provides a construction method of the adjustable construction elevator foundation back-jacking device, which comprises the following steps: fixedly mounting the fixing structure on the foundation slab, and fixedly mounting the adjusting structure on the fixing structure; adjusting the adjusting structure to enable the top of the adjusting structure to be located at the basement top plate bottom elevation of the basement top plate; erecting a formwork support, and pouring a top plate of the basement; and after the top plate of the basement reaches the strength, the back jacking device is detached.
Preferably, adjust and adjust the structure and make the top of adjusting the structure be located basement roof bottom elevation height of basement roof, include: adjust the height of structure top in order to adjust first sub-regulation through the regulation handle on the optional adjusting rod, adjust to the basement roof bottom elevation place that first sub-regulation structure top is located the basement roof to rotatory locknut locks and dies the regulation structure.
Preferably, the demolition topping device comprises: dismantling the formwork support; removing the adjusting structure on the fixing structure; and (4) removing the fixed structure on the foundation slab.
Compared with the closest prior art, the invention has the beneficial effects that:
1. the adjustable construction elevator foundation back jacking device is provided with the adjusting structure, so that the length of the back jacking device is very convenient to adjust, and the construction efficiency is improved.
2. The adjustable construction elevator foundation back-jacking device divides the integral member into the first sub-adjusting structure, the second sub-adjusting structure, the third sub-adjusting structure, the first standard knot and the second standard knot, is convenient to install and dismantle, is convenient to transport and store, and reduces the safety accidents in the installation and dismantling processes.
Drawings
Fig. 1 is a schematic structural view of an adjustable construction elevator foundation back-jacking device of the invention.
Fig. 2 is a schematic structural diagram of the adjusting structure of the present invention.
FIG. 3 is a schematic structural diagram of a first sub-adjustment structure according to the present invention.
FIG. 4 is a schematic structural diagram of a second sub-adjustment structure according to the present invention.
Fig. 5 is a schematic structural view of the fixing structure of the present invention.
FIG. 6 is a schematic structural diagram of a first standard section according to the present invention.
FIG. 7 is a schematic structural diagram of a second standard section according to the present invention.
Fig. 8 is a first adjustment schematic diagram of the adjustable construction elevator foundation back-jacking device of the invention.
Fig. 9 is a second adjustment schematic diagram of the adjustable construction elevator foundation back-jacking device of the invention.
Fig. 10 is a schematic structural diagram of the erection of the formwork support of the present invention.
Reference numerals:
1-adjustment structure, 11-first sub-adjustment structure, 111-first connection element, 112-first reinforcement element, 113-first protection element, 114-first support element, 115-adjustment sleeve, 12-second sub-adjustment structure, 121-adjustment rod, 122-adjustment handle, 123-locknut, 124-first external thread, 125-second external thread, 13-third sub-adjustment structure, 2-fixation structure, 21-first standard joint, 211-second connection element, 212-second reinforcement element, 213-second protection element, 214-second support element, 22-second standard joint, 221-third connection element, 222-third reinforcement element, 223-third protection element, 224-third support element, 3-basement ceiling, 31-the bottom elevation of the top plate of the basement, 4-the base bottom plate and 5-the formwork.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1-10, the present invention provides an adjustable construction elevator foundation back-jacking device, the top of the back-jacking device is connected with a basement top plate 3, the bottom of the back-jacking device is fixed on a foundation bottom plate 4, the back-jacking device comprises: an adjusting structure 1 and a fixing structure 2. Wherein, fixed knot constructs 2 and fixes on soleplate 4, adjusts structure 1 and installs on fixed knot constructs 2, adjusts structure 1 and is connected with basement roof 3. Fixed knot that fixed knot structure 2 adopted the fixed length festival to connect, adjust structure 1 and include: a first sub regulation structure 11, a second sub regulation structure 12 and a third sub regulation structure 13. The one end and the basement roof 3 of first sub-structure 11 of adjusting are connected, and the other end and the one end adjustable connection of second sub-structure 12 of adjusting of first sub-structure 11 are adjusted to the second, and the other end and the one end adjustable connection of third sub-structure 13 of adjusting of second sub-structure 12 are adjusted to the third, and the other end that the structure 13 is adjusted to the third sub-is installed on fixed knot constructs 2. The adjusting structure 1 is arranged, so that the length adjustment of the back jacking device is very convenient, and the construction efficiency is increased.
In a preferred embodiment, the first sub regulation structure 11 and the third sub regulation structure 13 are symmetrical structures, wherein the first sub regulation structure 11 includes: a first connector 111, a first reinforcement 112, a first guard 113, a first support 114, and an adjustment sleeve 115. The number of the first protection parts 113 is two, the two first protection parts 113 are respectively fixed at two ends of the first support part 114, one end of the first support part 114 is fixedly installed on the first connecting part 111, the adjusting sleeve 115 is fixedly installed at the other end of the first support part 114, and the first reinforcement part 112 is fixedly arranged at the connection position of the first support part 114 and the first connecting part 111. The first connecting piece 111 is connected with the basement top plate 3, and the adjusting sleeve 115 is connected with the second sub-adjusting structure 12.
In a preferred embodiment, the second sub-regulation structure 12 comprises: an adjusting rod 121, an adjusting handle 122 and a locknut 123. The adjusting handle 122 is arranged in the middle of the adjusting rod 121, one end of the adjusting rod 121 is a first external thread 124, the other end of the adjusting rod 121 is a second external thread 125, the turning directions of the first external thread 124 and the second external thread 125 are opposite, the number of the locknuts 123 is two, the two locknuts 123 are respectively arranged on the first external thread 124 and the second external thread 125, the adjusting rod 121 is adjustably connected with the first sub-adjusting structure 11 through the first external thread 124, and the adjusting rod 121 is adjustably connected with the third sub-adjusting structure 13 through the second external thread 125.
In a preferred embodiment, the fixed structure 2 comprises a first standard knot 21 and a second standard knot 22. The first standard knot 21 is arranged above the second standard knot 22, the first standard knot 21 is fixedly connected with the third sub-adjusting structure 13, and the second standard knot 22 is fixed on the foundation slab 4. The integral component is divided into a first sub-adjusting structure 11, a second sub-adjusting structure 12, a third sub-adjusting structure 13, a first standard section 21 and a second standard section 22, so that the installation and the removal are convenient, the transportation and the storage are convenient, and meanwhile, the safety accidents in the installation and the removal process are reduced.
In a preferred embodiment, the first standard knot 21 comprises: a second connector 211, a second reinforcement 212, a second guard 213, and a second support 214. The number of the second connecting members 211, the second reinforcing members 212 and the second protection members 213 is two, wherein the two groups of the second protection members 213 are fixedly installed at two ends of the second supporting member 214, two ends of the second supporting member 214 are respectively installed on the two groups of the second connecting members 211, and the second reinforcing members 212 are disposed at the connecting positions of the second connecting members 211 and the second supporting member 214. Two ends of the first standard knot 21 are respectively fixedly connected with the second standard knot 22 and the third sub-adjusting structure 13 through a second connecting piece 211.
In a preferred embodiment, the second standard knot 22 comprises: a third connecting member 221, a third reinforcing member 222, a third prevention member 223, and a third support member 224. The length of the third support 224 is one-half of the length of the second support 214, and the height of the third prevention piece 223 is one-half of the height of the second prevention piece 213. The number of the third connecting members 221, the third reinforcing members 222 and the third protection members 223 is two, wherein the two sets of the third reinforcing members 222 are fixedly installed at two ends of the third supporting member 224, two ends of the third supporting member 224 are respectively installed on the two sets of the third connecting members 221, and the third reinforcing members 222 are arranged at the connecting positions of the third connecting members 221 and the third supporting member 224. Two ends of the second standard knot 22 are fixedly connected with the first standard knot 21 and the foundation bedplate 4 through third connecting pieces 221 respectively.
In a preferred embodiment, the back-jacking device further comprises a supporting frame 5, the top of the supporting frame 5 is connected with the top plate 3 of the basement, the bottom of the supporting frame 5 is fixed on the foundation bed plate 4, and the top of the supporting frame 5 is fixedly connected with the adjusting structure 1.
Example 2
The invention provides a construction method of an adjustable construction elevator foundation back-jacking device, which is characterized by comprising the following steps of: the fixed structure 2 is fixedly arranged on the foundation slab 4, and the adjusting structure 1 is fixedly arranged on the fixed structure 2. The adjusting structure 1 is adjusted to enable the top of the adjusting structure 1 to be located at the basement top plate bottom elevation 31 of the basement top plate 3. And (5) erecting a formwork support 5 and pouring the basement top plate 3. And after the basement top plate 3 reaches the strength, the back jacking device is detached.
In a preferred embodiment, as shown in fig. 8-9, adjusting the adjusting structure 1 to make the top of the adjusting structure 1 located at the basement top plate bottom elevation 31 of the basement top plate 3 comprises: the height of the top of the first sub-adjusting structure 11 is adjusted by selectively installing the adjusting handle 122 on the adjusting rod 121 until the top of the first sub-adjusting structure 11 is located at the basement top plate bottom elevation 31 of the basement top plate 3, and the adjusting structure 1 is locked by rotating the locknut 123.
In a preferred embodiment, the removal of the back-up device comprises: and (5) removing the formwork support frame. The adjusting structure 1 on the fixed structure 2 is removed. The fixing structure 2 on the foundation sole plate 4 is removed.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention is included in the scope of the claims of the present invention filed as filed.
Claims (10)
1. The utility model provides an adjustable construction elevator basis returns top equipment, its characterized in that, the top of returning the top equipment is connected with basement roof (3), and the bottom is fixed on soleplate (4), it includes to return the top equipment: an adjusting structure (1) and a fixing structure (2);
the fixed structure (2) is fixed on the foundation slab (4), and the fixed structure (2) is connected by adopting a standard knot with a fixed length;
the adjustment structure (1) comprises: a first sub-regulating structure (11), a second sub-regulating structure (12) and a third sub-regulating structure (13); one end of the first sub-adjusting structure (11) is connected with the basement top plate (3), the other end of the first sub-adjusting structure (11) is adjustably connected with one end of the second sub-adjusting structure (12), the other end of the second sub-adjusting structure (12) is adjustably connected with one end of the third sub-adjusting structure (13), and the other end of the third sub-adjusting structure (13) is installed on the fixed structure (2).
2. The adjustable construction elevator foundation coping device according to claim 1, wherein the first sub-adjustment structure (11) and the third sub-adjustment structure (13) are symmetrical structures, wherein the first sub-adjustment structure (11) comprises: a first connecting piece (111), a first reinforcing piece (112), a first protection piece (113), a first support piece (114) and an adjusting sleeve (115);
the number of the first protection parts (113) is two, the two first protection parts (113) are respectively fixed at two ends of the first support part (114), one end of the first support part (114) is fixedly installed on the first connecting part (111), the adjusting sleeve (115) is fixedly installed at the other end of the first support part (114), and the first reinforcing part (112) is fixedly arranged at the joint of the first support part (114) and the first connecting part (111);
the first connecting piece (111) is connected with the basement top plate (3), and the adjusting sleeve (115) is connected with the second sub-adjusting structure (12).
3. The adjustable construction elevator foundation coping device according to claim 1, wherein the second sub-adjustment structure (12) comprises: the adjusting rod (121), the adjusting handle (122) and the locknut (123);
the adjusting handle (122) is arranged in the middle of the adjusting rod (121), one end of the adjusting rod (121) is provided with a first external thread (124), the other end of the adjusting rod (121) is provided with a second external thread (125), the turning directions of the first external thread (124) and the second external thread (125) are opposite, the number of the locknuts (123) is two, the locknuts (123) are respectively arranged on the first external thread (124) and the second external thread (125), the adjusting rod (121) is connected with the first sub-adjusting structure (11) in an adjustable mode through the first external thread (124), and the adjusting rod (121) is connected with the third sub-adjusting structure (13) in an adjustable mode through the second external thread (125).
4. The adjustable construction elevator foundation coping device according to claim 1, wherein the fixed structure (2) comprises a first standard knot (21) and a second standard knot (22);
the first standard knot (21) is arranged above the second standard knot (22), the first standard knot (21) is fixedly connected with the third sub-adjusting structure (13), and the second standard knot (22) is fixed on the foundation bottom plate (4).
5. The adjustable construction elevator foundation coping device according to claim 4, wherein the first standard knot (21) comprises: a second connector (211), a second stiffener (212), a second guard (213), and a second support (214);
the number of the second connecting pieces (211), the second reinforcing pieces (212) and the second protection pieces (213) is two, wherein the two groups of the second protection pieces (213) are fixedly arranged at two ends of the second supporting piece (214), two ends of the second supporting piece (214) are respectively arranged on the two groups of the second connecting pieces (211), and the second reinforcing pieces (212) are arranged at the connecting positions of the second connecting pieces (211) and the second supporting piece (214);
and two ends of the first standard knot (21) are respectively fixedly connected with the second standard knot (22) and the third sub-adjusting structure (13) through the second connecting piece (211).
6. The adjustable construction elevator foundation coping device according to claim 5, wherein the second standard knot (22) comprises: a third connecting member (221), a third reinforcing member (222), a third prevention member (223), and a third support member (224);
the length of the third support (224) is one half of the length of the second support (214), and the height of the third guard (223) is one half of the height of the second guard (213);
the number of the third connecting pieces (221), the third reinforcing pieces (222) and the third protection pieces (223) is two, wherein the two groups of the third reinforcing pieces (222) are fixedly arranged at two ends of the third supporting piece (224), two ends of the third supporting piece (224) are respectively arranged on the two groups of the third connecting pieces (221), and the third reinforcing pieces (222) are arranged at the connecting positions of the third connecting pieces (221) and the third supporting piece (224);
and two ends of the second standard knot (22) are fixedly connected with the first standard knot (21) and the foundation slab (4) through the third connecting piece (221) respectively.
7. The adjustable construction elevator foundation coping device according to claim 1, wherein the coping device further comprises a formwork support (5), the top of the formwork support (5) is connected with the basement top plate (3), the bottom of the formwork support is fixed on the foundation bottom plate (4), and the top of the formwork support (5) is fixedly connected with the adjusting structure (1).
8. A construction method of an adjustable construction elevator foundation back-jacking device is characterized by comprising the following steps:
fixedly mounting a fixed structure (2) on the foundation slab (4), and fixedly mounting an adjusting structure (1) on the fixed structure (2);
adjusting the adjusting structure (1) to enable the top of the adjusting structure (1) to be located at the basement top plate bottom elevation (31) of the basement top plate (3);
erecting a formwork support (5) and pouring a basement top plate (3);
and after the basement top plate (3) reaches the strength, the back jacking device is detached.
9. The construction method according to claim 8, wherein the adjusting structure (1) to locate the top of the adjusting structure (1) at the basement roof bottom elevation (31) of the basement roof (3) comprises:
the height of the top of the first sub-adjusting structure (11) is adjusted by selecting and installing an adjusting handle (122) on the adjusting rod (121), the top of the first sub-adjusting structure (11) is located at the bottom elevation (31) of the basement top plate (3), and the adjusting structure (1) is locked by rotating the anti-loose nut (123).
10. The method of claim 8, wherein said removing said jack-back device comprises:
dismantling the formwork support (5);
removing the adjusting structure (1) on the fixing structure (2);
and (3) removing the fixed structure (2) on the foundation slab (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252057.7A CN114059578A (en) | 2021-10-27 | 2021-10-27 | Adjustable construction elevator foundation back jacking device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252057.7A CN114059578A (en) | 2021-10-27 | 2021-10-27 | Adjustable construction elevator foundation back jacking device and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114059578A true CN114059578A (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111252057.7A Pending CN114059578A (en) | 2021-10-27 | 2021-10-27 | Adjustable construction elevator foundation back jacking device and construction method |
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| Country | Link |
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| CN (1) | CN114059578A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116927241A (en) * | 2023-07-31 | 2023-10-24 | 中国建筑第五工程局有限公司 | Construction elevator foundation roof returning structure and construction method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384101A (en) * | 2015-11-25 | 2016-03-09 | 中船黄埔文冲船舶有限公司 | Narrow space shoring device and application method |
| CN209873846U (en) * | 2019-03-04 | 2019-12-31 | 中建三局第三建设工程有限责任公司 | Can have enough to meet need construction elevator basis and return reinforcing apparatus |
-
2021
- 2021-10-27 CN CN202111252057.7A patent/CN114059578A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384101A (en) * | 2015-11-25 | 2016-03-09 | 中船黄埔文冲船舶有限公司 | Narrow space shoring device and application method |
| CN209873846U (en) * | 2019-03-04 | 2019-12-31 | 中建三局第三建设工程有限责任公司 | Can have enough to meet need construction elevator basis and return reinforcing apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116927241A (en) * | 2023-07-31 | 2023-10-24 | 中国建筑第五工程局有限公司 | Construction elevator foundation roof returning structure and construction method thereof |
| CN116927241B (en) * | 2023-07-31 | 2024-01-23 | 中国建筑第五工程局有限公司 | Construction elevator foundation roof returning structure and construction method thereof |
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Application publication date: 20220218 |