CN116815779A - Deep foundation pit supporting structure and construction method - Google Patents
Deep foundation pit supporting structure and construction method Download PDFInfo
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- CN116815779A CN116815779A CN202310640595.6A CN202310640595A CN116815779A CN 116815779 A CN116815779 A CN 116815779A CN 202310640595 A CN202310640595 A CN 202310640595A CN 116815779 A CN116815779 A CN 116815779A
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- 238000010276 construction Methods 0.000 title claims abstract description 92
- 230000008093 supporting effect Effects 0.000 title claims abstract description 30
- 239000002689 soil Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 77
- 239000010959 steel Substances 0.000 claims description 77
- 238000003756 stirring Methods 0.000 claims description 22
- 238000005553 drilling Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 239000004567 concrete Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- 239000011083 cement mortar Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012966 insertion method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Piles And Underground Anchors (AREA)
Abstract
The application discloses a deep foundation pit supporting structure and a construction method, wherein the structure comprises a plurality of SMW construction method piles, and the SMW construction method piles are sequentially arranged along the edge of a foundation pit; the inclined piles are positioned on the inner sides of the SMW construction method piles, and the arrangement direction of the inclined piles is the same as that of the SMW construction method piles; the crown beam is arranged at the tops of the SMW construction method piles and the inclined piles and is used for connecting the SMW construction method piles and the inclined piles. The deep foundation pit supporting structure provided by the application has the advantages of clear principle, low cost, high feasibility, reliable quality, effective shortening of the construction period, better control of the soil displacement at the rear side of the foundation pit, resource saving and environmental protection. The structure has huge application potential and can be widely applied to foundation pit support. Is worth popularizing and using in a large area.
Description
Technical Field
The application relates to the technical field of civil engineering, in particular to a deep foundation pit supporting structure and a construction method.
Background
The pit engineering mainly comprises foundation pit supporting system design and construction and earth excavation, and is a system engineering with strong comprehensiveness. It requires close coordination of geotechnical engineering and structural engineering technicians. The foundation pit supporting system is a temporary structure and is not needed after the underground engineering construction is completed.
In deep foundation pit excavation, the inner support structure is widely applied due to the advantages of no occupation of underground space resources outside the foundation pit, capability of improving the overall strength and rigidity of the whole enclosure system, capability of effectively controlling foundation pit deformation and the like. The inner support structure has its inevitable drawbacks. For example, the formation and dismantling of the internal support structure requires a certain time, which results in a great amount of waste of building materials, and its existence is also unfavorable for large-scale mechanical excavation and a long construction period.
Therefore, providing a supporting structure suitable for deep foundation pit supporting, which has short construction period and reliable quality is an urgent technical problem to be solved by those skilled in the art.
Disclosure of Invention
The application provides a deep foundation pit supporting structure and a construction method.
The application provides the following scheme:
a deep foundation pit supporting structure, comprising:
the SMW construction method piles are sequentially arranged along the edge of the foundation pit;
the inclined piles are positioned on the inner sides of the SMW construction method piles, and the arrangement direction of the inclined piles is the same as that of the SMW construction method piles;
the crown beam is arranged at the tops of the SMW construction method piles and the inclined piles and is used for connecting the SMW construction method piles and the inclined piles.
Preferably: the SMW construction pile comprises H-shaped steel.
Preferably: the inclined pile comprises any one of PHC pipe piles, prefabricated square piles and steel pipe piles.
The construction method of the deep foundation pit supporting structure comprises the following steps:
determining design and construction parameters of the SMW construction method pile, the inclined pile and the crown beam according to site conditions and calculation analysis;
the SMW construction method pile construction comprises the following steps:
and (3) measuring and paying off: according to the axis datum point, discharging the guard post side line and the control line, setting a temporary control mark, and performing technical rechecking;
excavating a guide ditch: digging a groove and removing underground barriers, and determining the width of the groove according to the width of the enclosure structure;
setting guide in-place section steel: two positioning section steel are placed in the direction of the parallel grooves, so that the positioning section steel is ensured to be fixed firmly;
SMW stake machine location: leveling the platform before drilling, and straightening the frame so that the verticality of the frame is less than 1/250;
stirring and piling: mixing cement slurry according to design requirements before starting; controlling the sinking and lifting speed of the stirring drilling machine, controlling the sinking speed of the guniting to be 0.5-1 m/min, controlling the lifting speed to be 1-2 m/min, and quickly drilling and lifting to fully mix cement paste and the original foundation soil;
selecting and welding H-shaped steel: the staggered distance between the vertical positions of the joints of adjacent section steel is more than 1 meter, and the distance between the joints of the section steel and the bottom surface of the foundation pit is not less than 2 meters;
and (3) brushing a friction reducer: removing dirt and rust on the surface of the section steel; when the ring beam is pressed by the casting enclosure wall, the section steel part buried in the ring beam is separated from the concrete by adopting a hard isolation material;
inserting and fixing H-shaped steel: the crane is in place after pile forming, H-shaped steel is kept in a vertical state in the hoisting process, and the inserting time of the H-shaped steel is controlled within 3 hours after the construction of the stirring pile is finished;
the construction of the inclined pile comprises the following steps:
measuring and paying off;
positioning equipment;
hammering pile sinking or static pressure pile sinking;
if the length of a single pile does not meet the design requirement, pile splicing is needed;
and (5) crown beam construction.
Preferably: and further comprises recovery section steel: after the construction of the main underground structure is completed and backfilling is compact between the outer wall of the structure and the enclosure structure, the clamp and the jack are adopted, the ring beam is used as a counter beam, and the H-shaped steel is recovered by pulling.
Preferably: and automatically filling the gap of the profile steel by cement mortar with the water-cement ratio of 0.4-0.8 until the profile steel is compact.
Preferably: the cement slurry is stirred according to design requirements before starting up, and the method comprises the following steps: and determining the drilling and stirring construction sequence according to the construction site conditions, and performing by adopting a continuous mode of double-hole full-sleeve repeated stirring of the jump-groove type.
According to the specific embodiment provided by the application, the application discloses the following technical effects:
according to the deep foundation pit supporting structure and the construction method, the deep foundation pit supporting structure can be realized, and in one implementation mode, the deep foundation pit supporting structure can comprise a plurality of SMW construction method piles which are sequentially arranged along the edge of a foundation pit; the inclined piles are positioned on the inner sides of the SMW construction method piles, and the arrangement direction of the inclined piles is the same as that of the SMW construction method piles; the crown beam is arranged at the tops of the SMW construction method piles and the inclined piles and is used for connecting the SMW construction method piles and the inclined piles. The deep foundation pit supporting structure provided by the application has the advantages of clear principle, low cost, high feasibility, reliable quality, effective shortening of the construction period, better control of the soil displacement at the rear side of the foundation pit, resource saving and environmental protection. The structure has huge application potential and can be widely applied to foundation pit support. Is worth popularizing and using in a large area.
Of course, it is not necessary for any one product to practice the application to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic plan view of a deep foundation pit supporting structure according to an embodiment of the present application;
fig. 2 is a schematic partial cross-sectional view of a deep foundation pit supporting structure according to an embodiment of the present application.
In the figure: SMW construction method stake 1, H shaped steel 11, inclined pile 2, roof beam 3.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
Examples
Referring to fig. 1 and fig. 2, in order to provide a deep foundation pit supporting structure according to an embodiment of the present application, as shown in fig. 1 and fig. 2, the structure may include:
the SMW construction method piles 1 are sequentially arranged along the edge of the foundation pit;
the inclined piles 2 are positioned on the inner sides of the SMW construction method piles 1, and the arrangement direction of the inclined piles 2 is the same as that of the SMW construction method piles 1;
the crown beam 3 is arranged at the tops of the SMW construction piles 1 and the inclined piles 2, and the crown beam 3 is used for connecting the SMW construction piles 1 and the inclined piles 2.
According to the deep foundation pit supporting structure provided by the embodiment of the application, the SMW construction method piles are adopted to form the retaining wall structure at the inner side edge of the foundation pit, and the inclined piles are adopted to serve as the inclined supports, so that a good supporting effect can be obtained after the crown beam construction is finished. Meanwhile, the section steel in the SMW construction method pile can be recycled after the foundation pit is excavated, other parts do not need to be disassembled, and the section steel is buried in the foundation pit after backfilling of the foundation pit.
Further, the embodiment of the application can provide that the SMW construction method pile 1 comprises H-shaped steel 11. The inclined pile 2 comprises any one of PHC pipe piles, prefabricated square piles and steel pipe piles. The SMW construction method pile is located outside the foundation pit supporting structure, the inclined pile is located inside the foundation pit supporting structure, and the crown beam connects the SMW construction method pile with the inclined pile.
The embodiment of the application also provides a construction method of the deep foundation pit supporting structure, which comprises the following steps:
determining construction parameters of the SMW construction method pile, the inclined pile and the crown beam according to site conditions and calculation analysis;
the SMW construction method pile construction comprises the following steps:
and (3) measuring and paying off: according to the axis datum point, discharging the guard post side line and the control line, setting a temporary control mark, and performing technical rechecking;
excavating a guide ditch: digging a groove and removing underground barriers, and determining the width of the groove according to the width of the enclosure structure;
setting guide in-place section steel: two positioning section steel are placed in the direction of the parallel grooves, so that the positioning section steel is ensured to be fixed firmly;
SMW stake machine location: leveling the platform before drilling, and straightening the frame so that the verticality of the frame is less than 1/250;
stirring and piling: mixing cement slurry according to design requirements before starting; controlling the sinking and lifting speed of the stirring drilling machine, controlling the sinking speed of the guniting to be 0.5-1 m/min, controlling the lifting speed to be 1-2 m/min, and quickly drilling and lifting to fully mix cement paste and the original foundation soil;
selecting and welding H-shaped steel: the staggered distance between the vertical positions of the joints of adjacent section steel is more than 1 meter, and the distance between the joints of the section steel and the bottom surface of the foundation pit is not less than 2 meters;
and (3) brushing a friction reducer: removing dirt and rust on the surface of the section steel; when the ring beam is pressed by the casting enclosure wall, the section steel part buried in the ring beam is separated from the concrete by adopting a hard isolation material;
inserting and fixing H-shaped steel: the crane is in place after pile forming, H-shaped steel is kept in a vertical state in the hoisting process, and the inserting time of the H-shaped steel is controlled within 3 hours after the construction of the stirring pile is finished;
the construction of the inclined pile comprises the following steps:
measuring and paying off;
positioning equipment;
hammering pile sinking or static pressure pile sinking;
if the length of a single pile does not meet the design requirement, pile splicing is needed;
and (5) crown beam construction.
And further comprises recovery section steel: after the construction of the main underground structure is completed and backfilling is compact between the outer wall of the structure and the enclosure structure, the clamp and the jack are adopted, the ring beam is used as a counter beam, and the H-shaped steel is recovered by pulling. And further, automatically filling the gap of the profile steel by cement mortar with the water-cement ratio of 0.4-0.8 until the profile steel is compact.
Further, the stirring of cement slurry is carried out according to design requirements before starting up, and the method comprises the following steps: and determining the drilling and stirring construction sequence according to the construction site conditions, and performing by adopting a continuous mode of double-hole full-sleeve repeated stirring of the jump-groove type.
In concrete implementation, the construction method of the foundation pit supporting structure comprises the following steps:
and step one, determining construction parameters of the SMW construction method piles, the inclined piles and the crown beams according to site conditions and calculation and analysis.
Step two, SMW construction method pile construction, including:
1. and (3) measuring and paying off: according to the axis datum point, discharging the guard post side line and the control line, setting a temporary control mark, and performing technical rechecking;
2. excavating a guide ditch: digging a groove and removing underground barriers, wherein the width of the groove is determined according to the width of the enclosure structure;
3. setting guide in-place section steel: two positioning section steel are placed in the direction of the parallel groove, the positioning section steel is required to be fixed firmly and can be fixed by spot welding, and the H-shaped steel is positioned by adopting a section steel positioning clamp;
4. SMW stake machine location: the pile frame of the drilling machine is stable and straight, the in-place deviation value is not more than 20mm, a leveling ruler is used for leveling the platform before drilling, and the frame is straightened, so that the verticality of the frame is ensured to be less than 1/250;
5. stirring and piling: mixing cement slurry according to design requirements before starting up, determining drilling and stirring construction sequence according to construction site conditions, and performing the drilling and stirring construction sequence by adopting a continuous mode of full-sleeve repeated drilling and stirring of a jump-slot type double-hole, wherein the sinking and lifting speed of a stirring drilling machine is strictly controlled, the guniting sinking speed is controlled to be 0.5-1 m/min, the lifting speed is controlled to be 1-2 m/min, and the cement slurry and the foundation soil are fully mixed at a constant speed;
6. selecting and welding H-shaped steel: before the section steel is used, checking and accepting the section steel one by one, wherein the flaw detection rate of the section steel is not less than 5%, the number of welded joints in a single section steel is not more than 2, the positions of the welded joints are prevented from being at the position where the section steel is stressed greatly, the staggered distance between the vertical positions of the joints of adjacent section steel is more than 1m, and the distance between the joints of the section steel and the bottom surface of a foundation pit is not less than 2m;
7. and (3) brushing a friction reducer: dirt and rust on the surface of the section steel should be removed, and the friction reducer should be uniformly smeared on the section steel inserted into the cement soil under the drying condition. When the ring beam is pressed by the casting enclosure wall, the section steel part buried in the ring beam is separated from the concrete by using hard isolating materials such as foam plastic sheets and the like so as to be beneficial to the pulling and recovery of the section steel;
8. inserting and fixing H-shaped steel: after piling, the crane should be in place immediately. During the lifting process, the section steel is kept in a vertical state. The insertion time of the section steel is controlled within 3 hours after the construction of the stirring pile is finished, and the insertion method of repeatedly hoisting the section steel and loosening the hook to fall is strictly forbidden.
Step three, construction of inclined piles, which comprises the following steps:
1. measuring and paying off;
2. positioning equipment;
3. hammering pile sinking or static pressure pile sinking;
4. if the length of a single pile does not meet the design requirement, pile splicing is needed;
5. repeating the steps 3, 4 and the construction of the pile.
And fourthly, crown beam construction.
Step five: and excavating a foundation pit and constructing a main body underground structure.
Step six: recovering the section steel: after the construction of the main underground structure is completed, backfilling and compacting are carried out between the outer wall of the structure and the enclosure structure, a special fixture and a jack are adopted, a ring beam is used as a counter beam, the H-shaped steel is recovered by pulling, and the gap of the section steel is automatically filled with cement mortar with the water-cement ratio of 0.4-0.8 until the gap is compacted.
In a word, the deep foundation pit supporting structure provided by the application has the advantages of clear principle, low cost, high feasibility, reliable quality, effective shortening of the construction period, better control of the soil displacement at the rear side of the foundation pit, resource saving and environmental protection. The structure has huge application potential and can be widely applied to foundation pit support. Is worth popularizing and using in a large area.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (7)
1. A deep foundation pit supporting structure, comprising:
the SMW construction method piles are sequentially arranged along the edge of the foundation pit;
the inclined piles are positioned on the inner sides of the SMW construction method piles, and the arrangement direction of the inclined piles is the same as that of the SMW construction method piles;
the crown beam is arranged at the tops of the SMW construction method piles and the inclined piles and is used for connecting the SMW construction method piles and the inclined piles.
2. The deep foundation pit supporting structure of claim 1, wherein the SMW method piles comprise H-section steel.
3. The deep foundation pit supporting structure of claim 1, wherein the inclined piles comprise any one of PHC piles, prefabricated square piles and steel pipe piles.
4. A method of constructing a deep foundation pit supporting structure according to any one of claims 1 to 3, comprising:
determining design and construction parameters of the SMW construction method pile, the inclined pile and the crown beam according to site conditions and calculation analysis;
the SMW construction method pile construction comprises the following steps:
and (3) measuring and paying off: according to the axis datum point, discharging the guard post side line and the control line, setting a temporary control mark, and performing technical rechecking;
excavating a guide ditch: digging a groove and removing underground barriers, and determining the width of the groove according to the width of the enclosure structure;
setting guide in-place section steel: two positioning section steel are placed in the direction of the parallel grooves, so that the positioning section steel is ensured to be fixed firmly;
SMW stake machine location: leveling the platform before drilling, and straightening the frame so that the verticality of the frame is less than 1/250;
stirring and piling: mixing cement slurry according to design requirements before starting; controlling the sinking and lifting speed of the stirring drilling machine, controlling the sinking speed of the guniting to be 0.5-1 m/min, controlling the lifting speed to be 1-2 m/min, and quickly drilling and lifting to fully mix cement paste and the original foundation soil;
selecting and welding H-shaped steel: the staggered distance between the vertical positions of the joints of adjacent section steel is more than 1 meter, and the distance between the joints of the section steel and the bottom surface of the foundation pit is not less than 2 meters;
and (3) brushing a friction reducer: removing dirt and rust on the surface of the section steel; when the ring beam is pressed by the casting enclosure wall, the section steel part buried in the ring beam is separated from the concrete by adopting a hard isolation material;
inserting and fixing H-shaped steel: the crane is in place after pile forming, H-shaped steel is kept in a vertical state in the hoisting process, and the inserting time of the H-shaped steel is controlled within 3 hours after the construction of the stirring pile is finished;
the construction of the inclined pile comprises the following steps:
measuring and paying off;
positioning equipment;
hammering pile sinking or static pressure pile sinking;
if the length of a single pile does not meet the design requirement, pile splicing is needed;
and (5) crown beam construction.
5. The method of claim 4, further comprising recovering the section steel: after the construction of the main underground structure is completed and backfilling is compact between the outer wall of the structure and the enclosure structure, the clamp and the jack are adopted, the ring beam is used as a counter beam, and the H-shaped steel is recovered by pulling.
6. The method according to claim 5, wherein the gap of the profile steel is self-filled to be compact by cement mortar with the water-cement ratio of 0.4-0.8.
7. The method of claim 4, wherein the mixing of the cement slurry prior to start-up according to design requirements comprises: and determining the drilling and stirring construction sequence according to the construction site conditions, and performing by adopting a continuous mode of double-hole full-sleeve repeated stirring of the jump-groove type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310640595.6A CN116815779A (en) | 2023-06-01 | 2023-06-01 | Deep foundation pit supporting structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310640595.6A CN116815779A (en) | 2023-06-01 | 2023-06-01 | Deep foundation pit supporting structure and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116815779A true CN116815779A (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310640595.6A Pending CN116815779A (en) | 2023-06-01 | 2023-06-01 | Deep foundation pit supporting structure and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116815779A (en) |
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2023
- 2023-06-01 CN CN202310640595.6A patent/CN116815779A/en active Pending
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