CN112593560A - Supporting beam replacing structure between supporting pile and basement outer wall and construction method thereof - Google Patents
Supporting beam replacing structure between supporting pile and basement outer wall and construction method thereof Download PDFInfo
- Publication number
- CN112593560A CN112593560A CN202011317308.0A CN202011317308A CN112593560A CN 112593560 A CN112593560 A CN 112593560A CN 202011317308 A CN202011317308 A CN 202011317308A CN 112593560 A CN112593560 A CN 112593560A
- Authority
- CN
- China
- Prior art keywords
- template
- wall
- support
- basement
- replacing
- Prior art date
- 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
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention provides a beam-exchanging structure between a support pile and a basement outer wall and a construction method thereof, wherein a waist beam template for connecting each support pile is adopted; the basement outer wall template is arranged in parallel with the basement waist beam template; the support beam replacing templates are arranged between the waist beam template and the basement outer wall template at preset intervals, one end of each support beam replacing template is vertically communicated with the waist beam template, and the other end of each support beam replacing template is vertically connected with the basement outer wall template; the outer wall operation frame comprises a plurality of vertical rods and a cross rod vertically connected with the vertical rods, and the top of each vertical rod is supported at the bottoms of the waist beam template and the support beam replacing template. The template and the reinforcing system are simple and convenient to operate, and the construction period can be shortened under the condition that the number of the foundation pit supporting piles is large. The support beam replacing template is easy to dismantle and can be quickly circulated; compared with the common construction of replacing the supporting beam template, the construction cost is low.
Description
Technical Field
The invention relates to a support beam replacing structure between a support pile and a basement outer wall and a construction method thereof.
Background
With the continuous excavation, development and use of underground space, the supporting and support changing technology of deep foundation pit engineering in the construction process can be selected in various ways, the overall design construction mode is still developed towards the direction of ensuring the stability and safety of the integral structure of foundation pit enclosure, and meanwhile, the enclosure cost can be reduced, but the utilization size, the utilization range and the development and use of the underground space are still developed or changed to a greater extent, the supporting and support changing stress form of the foundation pit enclosure and the structure is changed along with the continuous change of geological conditions, excavation conditions and surrounding environment, and different supporting and support changing modes are provided for different enclosure forms.
At present, the stress and force transmission forms of a supporting structure generally comprise cantilever support-free supporting, anchor-pull type supporting, soil layer anchor rods, reinforced concrete beam type supporting and support changing, steel pipe and profile steel supporting and support changing and the like, but the technologies are usually accompanied with the construction procedures of underground structure construction, support dismantling and support changing, earthwork backfilling and the like, and although the requirements on the stable and safe conditions of the whole structure of a foundation pit are met, the construction site operation is inconvenient, and the economic rationality is lacked.
Because the number of the supporting cast-in-place piles is large, the workload and the operation procedure of the designed 'one pile and one support' support changing form are complicated, and the whole construction of an underground structure needs to be matched.
Disclosure of Invention
The invention aims to provide a supporting beam replacing structure between a supporting pile and a basement outer wall and a construction method thereof.
In order to solve the above problems, the present invention provides a beam-exchanging structure between a support pile and an outer wall of a basement, comprising:
the waist beam template is connected with each support pile and arranged in parallel with the basement outer wall template;
the support beam replacing templates are arranged between the waist beam template and the basement outer wall template at preset intervals, one end of each support beam replacing template is vertically communicated with the waist beam template, and the other end of each support beam replacing template is vertically connected with the basement outer wall template;
the outer wall operation frame comprises a plurality of vertical rods and a cross rod vertically connected with the vertical rods, and the top of each vertical rod is supported at the bottoms of the waist beam template and the support beam replacing template.
Furthermore, in the supporting beam replacing structure between the supporting pile and the basement outer wall, the top of each vertical rod is also provided with a height fine-adjustment jacking support which is in contact with the bottom of the supporting beam replacing template.
Further, in the beam structure that trades between above-mentioned fender pile and basement outer wall, every trades beam template and includes:
a bottom steel plate;
two side steel plates respectively vertically connected to one side of the bottom steel plate to form a support beam-changing template with an upper opening and a U-shaped cross section
Furthermore, in the support beam replacing structure between the support piles and the basement outer wall, the thickness of the bottom steel plate and the thickness of the side steel plate are 3 mm.
Furthermore, in the support beam replacing structure between the support piles and the outer wall of the basement, each side steel plate is connected with the bottom steel plate through a hinge.
Furthermore, in the beam-exchanging structure between the support piles and the outer wall of the basement, each side steel plate is provided with a reinforcing angle steel.
Further, in the beam structure that trades between above-mentioned fender pile and basement outer wall, still include: and the reinforcing battens are arranged on the support beam replacing templates.
Further, in the beam structure that trades between above-mentioned fender pile and basement outer wall, the reinforcement flitch includes:
a bottom batten;
the two lateral battens are respectively and vertically connected to one side of the bottom batten to form a reinforced batten with a U-shaped cross section and a lower opening, and one end of the lower opening of each lateral batten is a free end.
Furthermore, in the beam-exchanging structure between the support piles and the outer wall of the basement, the lower opening of the reinforcing batten is opposite to the upper opening of the beam-exchanging template, and one free end of each side batten is erected on one reinforcing angle steel;
the two lateral wood pieces are connected through split bolts.
According to another aspect of the invention, a construction method for replacing a supporting beam between a supporting pile and an outer wall of a basement is provided, which comprises the following steps:
step S1, chiseling the concrete surface of the support pile to expose the main reinforcement, and cleaning the interface;
step S2, connecting a waist beam template with each support pile, wherein the basement waist beam template and the basement outer wall template are arranged in parallel, support beam replacing templates are arranged between the waist beam template and the basement outer wall template at preset intervals, one end of each support beam replacing template is vertically communicated with the waist beam template, the other end of each support beam replacing template is vertically connected with the basement outer wall template, each support beam replacing template comprises a bottom steel plate and two side steel plates, the two side steel plates are respectively and vertically connected to one side of the bottom steel plate to form a support beam replacing template with an upper opening and a U-shaped section, each side steel plate is connected with the bottom steel plate through a hinge, and each side steel plate is also provided with a reinforcing angle steel;
step S3, building and reinforcing the bottoms of the waist beam template and the support beam replacing template by using a basement outer wall scaffold, wherein the outer wall operation frame comprises a plurality of upright posts and cross rods vertically connected with the upright posts, supporting a height adjusting jacking at the top of each upright post at the bottom of the support beam replacing template, and finely adjusting the support height of the support beam replacing template by adopting a height adjusting jacking;
step S4, arranging a reinforced batten on the support beam replacing template, wherein the reinforced batten comprises: one bottom surface flitch and two side flitches, two side flitches respectively perpendicular connect in one side of bottom surface flitch to form the lower shed's that the cross-section is the U style of calligraphy reinforcement flitch, the lower shed's of every side flitch one end is the free end, will the lower shed of reinforcing flitch is relative with the upper shed that trades the supporting beam template, and erects a free end of every side flitch back on a reinforcement angle steel, passes through two side flitches to drawing bolted connection.
Compared with the prior art, the invention adopts the waist beam template for connecting each support pile; the basement outer wall template is arranged in parallel with the basement waist beam template; the support beam replacing templates are arranged between the waist beam template and the basement outer wall template at preset intervals, one end of each support beam replacing template is vertically communicated with the waist beam template, and the other end of each support beam replacing template is vertically connected with the basement outer wall template; the outer wall operation frame comprises a plurality of vertical rods and a cross rod vertically connected with the vertical rods, and the top of each vertical rod is supported at the bottoms of the waist beam template and the support beam replacing template. The template and the reinforcing system are simple and convenient to operate, and the construction period can be shortened under the condition that the number of the foundation pit supporting piles is large. The support beam replacing template is easy to dismantle and can be quickly circulated; compared with the common construction of replacing the supporting beam template, the construction cost is low.
Drawings
FIG. 1 is an elevation view of a beam-exchanging structure between a support pile and an exterior wall of a basement according to an embodiment of the present invention;
FIG. 2 is a plan view of a beam-exchanging structure between a support pile and an exterior wall of a basement according to an embodiment of the present invention;
FIG. 3 is a schematic view of a bracing beam replacement template according to an embodiment of the invention;
fig. 4 is a schematic view of reinforcing a beam-exchanging formwork according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 4, the present invention provides a beam-exchanging structure between a support pile and an exterior wall of a basement, comprising:
the waist beam template 1 is connected with each support pile 4, and the waist beam template 1 and the basement outer wall template 2 are arranged in parallel;
the support beam replacing templates 3 are arranged between the waist beam template 1 and the basement outer wall template 2 at preset intervals, one end of each support beam replacing template 3 is vertically communicated with the waist beam template 1, and the other end of each support beam replacing template 3 is vertically connected with the basement outer wall template 2;
the outer wall handling frame comprises a plurality of vertical rods 5 and cross rods 6 vertically connected with the vertical rods, and the top of each vertical rod 5 is supported at the bottoms of the waist beam formwork 1 and the support beam formwork 3.
Here, as shown in fig. 2, concrete may be subsequently poured into the wale formwork 1, the basement exterior wall formwork 2 and the bracing beam replacement formwork 3, respectively, to form a wale, a basement exterior wall and a bracing beam connecting the wale and the basement exterior wall, respectively.
The invention can reduce the deformation of the supporting structure and ensure the safety of the foundation pit in the process of carrying out support replacement construction between the supporting pile of the deep foundation pit engineering and the outer wall of the basement.
As shown in fig. 1, in an embodiment of the beam-exchanging structure between a support pile and an outer wall of a basement, the top of each upright rod 5 is further provided with a height fine-tuning jacking 7 in contact with the bottom of the beam-exchanging formwork 3.
As shown in fig. 1 and 3, in an embodiment of the beam-exchanging structure between a support pile and an outer wall of a basement, each beam-exchanging formwork 3 includes:
a bottom steel plate 31;
and the two side steel plates 32 are respectively and vertically connected to one side of the bottom steel plate 31 to form the support beam replacing template 3 with an upper opening and a U-shaped section.
In one embodiment of the supporting beam replacing structure between the supporting pile and the outer wall of the basement, the thickness of the bottom steel plate and the side steel plate is 3 mm.
As shown in fig. 3, in an embodiment of the beam-exchanging structure between a support pile and an outer wall of a basement, each lateral steel plate 32 is connected with the bottom steel plate 31 by a hinge 33, so as to facilitate assembly and unfolding of the beam-exchanging formwork 3 by the hinge for dismantling.
The formwork system can be quickly applied to the formwork frame body of the supporting beam in a lap-joint and disassembly mode, and can be recycled while the construction quality is ensured. Aiming at the construction process of the support beam, the invention applies a shaped template and a reinforcing system, can quickly carry out the construction of the reinforced concrete support beam, and has the advantages of convenient installation and disassembly, economic manufacturing cost, environmental protection, no pollution, cyclic circulation and use, convenient recovery, simple processing and utilization, and the like.
As shown in fig. 4, in an embodiment of the beam-exchanging structure between a support pile and an outer wall of a basement, each side steel plate is further provided with a reinforcing angle steel 8.
As shown in fig. 4, in an embodiment of the beam-exchanging structure between a support pile and an outer wall of a basement, a reinforcing batten is disposed on the beam-exchanging formwork.
As shown in fig. 4, in an embodiment of the beam-exchanging structure between a support pile and an outer wall of a basement, the reinforcing batten comprises:
a bottom batten 91;
and the two side battens 92 are respectively and vertically connected to one side of the bottom batten 91 to form a reinforcing batten 91 with a U-shaped cross section and a lower opening, and the lower opening end of each of the two side battens 92 is a free end.
In an embodiment of the beam-exchanging structure between a support pile and the outer wall of the basement according to the present invention, as shown in fig. 4, the lower opening of the reinforcing batten is opposite to the upper opening of the beam-exchanging formwork, and each free end of the two side battens 92 is erected on one reinforcing angle steel 8.
As shown in fig. 4, in an embodiment of the beam-exchanging structure between a support pile and an outer wall of a basement, two side battens 92 are connected by a split bolt 10.
As shown in fig. 1 to 4, the present invention further provides another construction method for exchanging a supporting beam between a supporting pile and an outer wall of a basement, including:
step S1, chiseling the concrete surface of the support pile to expose the main reinforcement, and cleaning the interface;
step S2, connecting a waist beam template with each support pile, wherein the basement waist beam template and the basement outer wall template are arranged in parallel, support beam replacing templates are arranged between the waist beam template and the basement outer wall template at preset intervals, one end of each support beam replacing template is vertically communicated with the waist beam template, the other end of each support beam replacing template is vertically connected with the basement outer wall template, each support beam replacing template comprises a bottom steel plate and two side steel plates, the two side steel plates are respectively and vertically connected to one side of the bottom steel plate to form a support beam replacing template with an upper opening and a U-shaped section, each side steel plate is connected with the bottom steel plate through a hinge, and each side steel plate is also provided with a reinforcing angle steel;
the steel template with the hinge is adopted, and the batten clamp is matched for reinforcement, so that the operation is convenient, and the disassembly and the assembly are easy;
step S3, building and reinforcing the bottoms of the waist beam template and the support beam replacing template by using a basement outer wall scaffold, wherein the outer wall operation frame comprises a plurality of upright posts and cross rods vertically connected with the upright posts, supporting a height adjusting jacking at the top of each upright post at the bottom of the support beam replacing template, and finely adjusting the support height of the support beam replacing template by adopting a height adjusting jacking;
herein, the supporting height of the support beam replacing template is finely adjusted by adopting the height adjusting jack, and the bottom surface steel plate template is easy to dismantle. The support-replacing beam formed by pouring the support-replacing beam template is only about 1400 mm long, so that the upright rods of the outer wall operation frame at the lower part of the support-replacing beam template can be retained in the process of dismantling the outer wall operation frame, a quick dismantling system is realized, and the material turnover of steel pipes, templates and the like is accelerated;
step S4, arranging a reinforced batten on the support beam replacing template, wherein the reinforced batten comprises: one bottom surface flitch and two side flitches, two side flitches respectively perpendicular connect in one side of bottom surface flitch to form the lower shed's that the cross-section is the U style of calligraphy reinforcement flitch, the lower shed's of every side flitch one end is the free end, will the lower shed of reinforcing flitch is relative with the upper shed that trades the supporting beam template, and erects a free end of every side flitch back on a reinforcement angle steel, passes through two side flitches to drawing bolted connection.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a trade between fender pile and the basement outer wall and prop roof beam structure which characterized in that includes:
the waist beam template is connected with each support pile and arranged in parallel with the basement outer wall template;
the support beam replacing templates are arranged between the waist beam template and the basement outer wall template at preset intervals, one end of each support beam replacing template is vertically communicated with the waist beam template, and the other end of each support beam replacing template is vertically connected with the basement outer wall template;
the outer wall operation frame comprises a plurality of vertical rods and a cross rod vertically connected with the vertical rods, and the top of each vertical rod is supported at the bottoms of the waist beam template and the support beam replacing template.
2. The bracing beam replacing structure between the support pile and the outer wall of the basement as claimed in claim 1, wherein the top of each vertical rod is further provided with a height fine-adjustment jacking contacted with the bottom of the bracing beam replacing template.
3. The bracing beam structure between a support pile and an outer wall of a basement according to claim 1, wherein each bracing beam formwork comprises:
a bottom steel plate;
and the two side steel plates are respectively and vertically connected to one side of the bottom steel plate so as to form the support beam replacing template with the U-shaped section and an upper opening.
4. The bracing beam changing structure between the support pile and the outer wall of the basement as claimed in claim 3, wherein the thickness of the bottom steel plate and the side steel plate is 3 mm.
5. The bracing beam changing structure between the support pile and the outer wall of the basement as claimed in claim 3, wherein each side steel plate is connected with the bottom steel plate through a hinge.
6. The beam-exchanging and supporting structure between the support piles and the outer wall of the basement according to claim 3, wherein each side steel plate is further provided with a reinforcing angle steel.
7. The bracing beam changing structure between the support pile and the outer wall of the basement as claimed in claim 1, further comprising: and the reinforcing battens are arranged on the support beam replacing templates.
8. The bracing beam changing structure between the support pile and the outer wall of the basement as claimed in claim 7, wherein the reinforcing batten comprises:
a bottom batten;
the two lateral battens are respectively and vertically connected to one side of the bottom batten to form a reinforced batten with a U-shaped cross section and a lower opening, and one end of the lower opening of each lateral batten is a free end.
9. The bracing beam changing structure between the support pile and the outer wall of the basement as claimed in claim 8, wherein the lower opening of the reinforcing batten is opposite to the upper opening of the bracing beam changing template, and one free end of each side batten is erected on one reinforcing angle steel;
the two lateral wood pieces are connected through split bolts.
10. A construction method for replacing a supporting beam between a supporting pile and a basement outer wall is characterized by comprising the following steps:
step S1, chiseling the concrete surface of the support pile to expose the main reinforcement, and cleaning the interface;
step S2, connecting a waist beam template with each support pile, wherein the basement waist beam template and the basement outer wall template are arranged in parallel, support beam replacing templates are arranged between the waist beam template and the basement outer wall template at preset intervals, one end of each support beam replacing template is vertically communicated with the waist beam template, the other end of each support beam replacing template is vertically connected with the basement outer wall template, each support beam replacing template comprises a bottom steel plate and two side steel plates, the two side steel plates are respectively and vertically connected to one side of the bottom steel plate to form a support beam replacing template with an upper opening and a U-shaped section, each side steel plate is connected with the bottom steel plate through a hinge, and each side steel plate is also provided with a reinforcing angle steel;
step S3, building and reinforcing the bottoms of the waist beam template and the support beam replacing template by using a basement outer wall scaffold, wherein the outer wall operation frame comprises a plurality of upright posts and cross rods vertically connected with the upright posts, supporting a height adjusting jacking at the top of each upright post at the bottom of the support beam replacing template, and finely adjusting the support height of the support beam replacing template by adopting a height adjusting jacking;
step S4, arranging a reinforced batten on the support beam replacing template, wherein the reinforced batten comprises: one bottom surface flitch and two side flitches, two side flitches respectively perpendicular connect in one side of bottom surface flitch to form the lower shed's that the cross-section is the U style of calligraphy reinforcement flitch, the lower shed's of every side flitch one end is the free end, will the lower shed of reinforcing flitch is relative with the upper shed that trades the supporting beam template, and erects a free end of every side flitch back on a reinforcement angle steel, passes through two side flitches to drawing bolted connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317308.0A CN112593560A (en) | 2020-11-23 | 2020-11-23 | Supporting beam replacing structure between supporting pile and basement outer wall and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317308.0A CN112593560A (en) | 2020-11-23 | 2020-11-23 | Supporting beam replacing structure between supporting pile and basement outer wall and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112593560A true CN112593560A (en) | 2021-04-02 |
Family
ID=75184165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011317308.0A Pending CN112593560A (en) | 2020-11-23 | 2020-11-23 | Supporting beam replacing structure between supporting pile and basement outer wall and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112593560A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332380A (en) * | 2015-11-16 | 2016-02-17 | 上海建工五建集团有限公司 | Strut changing structure and method for underground building |
| CN205062818U (en) * | 2015-09-11 | 2016-03-02 | 广州市住宅建设发展有限公司 | Deep basal pit internal branch supporting beam formula is traded and is propped structure |
| CN107503513A (en) * | 2017-07-17 | 2017-12-22 | 海南职业技术学院 | Wall body template split bolt constructing device and construction method |
| CN207812460U (en) * | 2018-01-26 | 2018-09-04 | 黄晨亮 | A kind of pattern foundation pit supporting structure support changing structure for use |
| CN109577339A (en) * | 2017-09-29 | 2019-04-05 | 中国二十冶集团有限公司 | Pattern foundation pit supporting structure waist rail rope saw cutting process |
-
2020
- 2020-11-23 CN CN202011317308.0A patent/CN112593560A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205062818U (en) * | 2015-09-11 | 2016-03-02 | 广州市住宅建设发展有限公司 | Deep basal pit internal branch supporting beam formula is traded and is propped structure |
| CN105332380A (en) * | 2015-11-16 | 2016-02-17 | 上海建工五建集团有限公司 | Strut changing structure and method for underground building |
| CN107503513A (en) * | 2017-07-17 | 2017-12-22 | 海南职业技术学院 | Wall body template split bolt constructing device and construction method |
| CN109577339A (en) * | 2017-09-29 | 2019-04-05 | 中国二十冶集团有限公司 | Pattern foundation pit supporting structure waist rail rope saw cutting process |
| CN207812460U (en) * | 2018-01-26 | 2018-09-04 | 黄晨亮 | A kind of pattern foundation pit supporting structure support changing structure for use |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100489198C (en) | Prestressed scaffolding system | |
| CN213836667U (en) | Foundation pit engineering precast concrete non-primary support system | |
| CN111005387A (en) | Deep foundation pit prestress support replacement support construction method | |
| CN114790757A (en) | Cover-excavation top-down construction V-shaped column structure and construction method thereof | |
| CN112177012A (en) | Precast concrete non-primary support system with lattice columns for foundation pit engineering and construction method | |
| CN101446067B (en) | Construction method for Y-shaped frame of large-span steel box basket arch bridge | |
| CN111441343A (en) | Mountain photovoltaic support micropore cast-in-place pile foundation system, construction method and application | |
| CN110593269A (en) | Turnover type structure support changing system and construction method thereof | |
| CN218479176U (en) | A outer frame post installation node for in reinforced concrete foundation ditch supports | |
| CN211312570U (en) | Can have enough to meet need formula steel open caisson supporting device | |
| CN213836666U (en) | Precast concrete non-primary support system with lattice columns for foundation pit engineering | |
| CN112593560A (en) | Supporting beam replacing structure between supporting pile and basement outer wall and construction method thereof | |
| CN213572357U (en) | Basement board reinforcing structure under one-column one-pile working condition of top-down construction method | |
| CN113174962A (en) | Foundation pit bottom plate force transmission structure and construction method thereof | |
| CN111441364A (en) | Recoverable PC worker method combination steel-pipe pile adds steel pipe shaped steel support system | |
| CN201826326U (en) | Foundation of deep-excavation tower crane | |
| CN1037286C (en) | Multi-layer integrate working pile supporting system and working method | |
| CN217460609U (en) | Horizontal steel supporting structure of reverse construction method | |
| CN217353526U (en) | Deep basal pit single face template bearing structure | |
| CN113585278B (en) | Variable-rigidity high-adaptability combined inner support | |
| CN114263188B (en) | Double-support platform structure for foundation pit engineering and construction method | |
| CN220080040U (en) | Concrete axial force servo supporting system capable of actively controlling deformation | |
| CN217710669U (en) | Variable cross-section type steel reinforcement cage structure | |
| CN212801564U (en) | Foundation ditch steel sheet pile supporting construction | |
| CN217629966U (en) | Face semi-reverse construction method foundation ditch inner support structure of large-span of subway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210402 |
|
| RJ01 | Rejection of invention patent application after publication |