CN216194766U - Cylindrical foundation pit structure - Google Patents
Cylindrical foundation pit structure Download PDFInfo
- Publication number
- CN216194766U CN216194766U CN202022844368.XU CN202022844368U CN216194766U CN 216194766 U CN216194766 U CN 216194766U CN 202022844368 U CN202022844368 U CN 202022844368U CN 216194766 U CN216194766 U CN 216194766U
- Authority
- CN
- China
- Prior art keywords
- constructional column
- rib
- column section
- hanging
- ribs
- 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.)
- Active
Links
Images
Landscapes
- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model provides a cylindrical foundation pit structure, which comprises: a cylindrical retaining wall structure; and the annular capping beam is arranged at the top of the cylindrical retaining wall structure and comprises a first structure positioned above the cylindrical retaining wall structure and a second structure which is connected with the first structure and extends downwards along the inner wall of the cylindrical retaining wall structure and is attached to the inner wall. The annular roof pressure roof beam of above structure owing to have along the inner wall downwardly extending of cartridge type barricade structure and with the second structure of inner wall laminating can pass through the second structure to the upper portion of cartridge type barricade provides the counter acting force who is used for resisting soil body side pressure to avoid better buckling the barricade or fracturing at the soil body side pressure on the in-process barricade upper portion of forming the foundation ditch.
Description
Technical Field
The utility model relates to a foundation pit structure, in particular to a cylindrical foundation pit structure.
Background
The tubular foundation pit structure in the prior art is provided with a tubular retaining wall structure, the top of the tubular retaining wall structure is provided with a capping beam, the arrangement of the capping beam is to improve the integrity of the foundation pit retaining wall structure, so that the foundation pit retaining wall structure forms a stressed cylinder type whole, however, in the construction process of forming the foundation pit, the outside soil body at the upper part of the foundation pit can form larger inward pressure on the upper part of the retaining wall, if the retaining wall has poorer compressive strength, the retaining wall is easy to be bent or broken, the main force application direction of the capping beam in the prior art is vertical force application, but the lateral acting force exerting capability is poor, the lateral pressure of the soil body at the upper part of the foundation pit to the cylindrical retaining wall cannot be well resisted, this necessitates increasing the compressive strength of the cylindrical retaining wall itself, for example, by replacing the retaining wall material and adding internal ribs, which increases the construction cost.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to provide a cylindrical foundation pit structure of a capping beam with strong lateral pressure resistance.
The utility model relates to a cylindrical foundation pit structure, which comprises: a cylindrical retaining wall structure; and the annular capping beam is arranged at the top of the cylindrical retaining wall structure and comprises a first structure positioned above the cylindrical retaining wall structure and a second structure which is connected with the first structure and extends downwards along the inner wall of the cylindrical retaining wall structure and is attached to the inner wall.
The cylindrical foundation pit structure is characterized in that the annular capping beam is arranged at the top of the cylindrical retaining wall structure in a pouring or lap joint mode.
In the cylindrical foundation pit structure, the annular capping beam is internally provided with a plurality of bending ribs which are radially arranged; the bending rib is provided with a first section positioned in the first structure and a second section positioned in the second structure.
The above-mentioned tubular foundation ditch structure, wherein, still include: the upper ends of the plurality of construction columns are connected with the lower end of the second structure of the annular capping beam, and the lower ends of the plurality of construction columns are supported at the bottom of the cylindrical foundation pit structure; the structure column is internally provided with a structure column rib, the structure column rib and the lower end of the second section of the bending rib are hung at the lower end of the second section and provided with a first hanging structure, and the upper end of the structure column rib is provided with a second hanging structure hung and connected with the first hanging structure; the first hanging structure is exposed outside the second structure, the second structure and the constructional column are poured into a whole, and the first hanging structure and the second hanging structure are located inside the constructional column.
In the above cylindrical foundation pit structure, the constructional column at least comprises a first constructional column section and a second constructional column section vertically connected with the first constructional column section; the constructional column ribs at least comprise first ribs positioned in the first constructional column section and second ribs which are hung with the lower ends of the first ribs and positioned in the second constructional column section; the lower end of the first rib is provided with a third hanging structure, the upper end of the second rib is provided with a fourth hanging structure hung with the third hanging structure, and the third hanging structure is exposed outside the first constructional column section; the first constructional column section and the second constructional column section are poured into a whole, and the third hanging structure and the fourth hanging structure are located in the second constructional column section.
In the above cylindrical foundation pit structure, the constructional column at least comprises a first constructional column section and a second constructional column section which are vertically arranged; the cylindrical foundation pit structure further comprises an annular rib beam, wherein the annular rib beam is arranged between the first construction column section and the second construction column section and is fixedly connected with the first construction column section and the second construction column section respectively; wherein the construction column ribs comprise at least a first rib located inside the first construction column section, and a second rib located inside the second construction column section; third ribs are arranged inside the annular rib beam and are respectively connected with the lower ends of the first ribs and the upper ends of the second ribs in a hanging mode; the lower end of the first rib is provided with a third hanging structure, the third hanging structure is exposed outside the first constructional column section, the upper end of the second rib is provided with a fourth hanging structure, the third rib is provided with a fifth hanging structure at the upper end and a sixth hanging structure at the lower end, the third hanging structure is hung with the fifth hanging structure, and the fourth hanging structure is hung with the sixth hanging structure; the first constructional column section, the second constructional column section and the rib beam are poured into a whole, the third hanging structure and the fifth hanging structure are located inside the rib beam, and the fourth hanging structure and the sixth hanging structure are located inside the second constructional column section.
In the above tubular foundation pit structure, the annular capping beam is a reinforced concrete capping beam, the constructional column is a reinforced concrete capping beam, and the annular rib beam is a reinforced concrete rib beam.
In the above cylindrical foundation pit structure, the cylindrical retaining wall structure is formed by mutually engaging a plurality of circumferentially arranged pile bodies.
In the above barrel-type foundation pit structure, the annular capping beam is a prefabricated capping beam or a cast-in-place capping beam, and/or the constructional column is a prefabricated constructional column or a cast-in-place constructional column.
In the above cylindrical foundation pit structure, the second structure is a circumferentially continuous structure.
Compared with the prior art, the technical scheme of the utility model has the following technical effects:
1. the cylindrical foundation pit structure of the embodiment of the utility model comprises: a cylindrical retaining wall structure; wherein, annular capping beam set up in cartridge type retaining wall structure's top, annular capping beam is including being located the first structure of cartridge type retaining wall structure top, and with what first structure meets along cartridge type retaining wall structure's inner wall downwardly extending and with the second structure of inner wall laminating. The annular roof pressure roof beam of above structure owing to have along the inner wall downwardly extending of cartridge type barricade structure and with the second structure of inner wall laminating can pass through the second structure to the upper portion of cartridge type barricade provides the counter acting force who is used for resisting soil body side pressure to avoid better buckling the barricade or fracturing at the soil body side pressure on the in-process barricade upper portion of forming the foundation ditch.
2. In the cylindrical foundation pit structure provided by the embodiment of the utility model, the annular capping beam is arranged at the top of the cylindrical retaining wall structure in a pouring mode, so that the integrity of the capping beam and the cylindrical retaining wall structure is stronger; the annular capping beam is arranged at the top of the cylindrical retaining wall structure in a lap joint manner, on one hand, the prefabricated capping beam can be used for construction, and on the other hand, the top of the retaining wall is in non-fixed connection with the capping beam, so that the lateral pressure of a soil body can be completely transferred to the second structure of the capping beam; especially when the second structure is a circumferentially continuous structure, the resulting circumferential arch effect can generate a greater radial counter-acting force for resisting a greater soil lateral pressure.
3. In the cylindrical foundation pit structure provided by the embodiment of the utility model, a plurality of bending ribs which are radially arranged are arranged inside the annular capping beam; the bending rib is provided with a first section positioned in the first structure and a second section positioned in the second structure. The bending ribs are added, so that the bending resistance of the corresponding structure is improved.
4. In the cylindrical foundation pit structure provided by the embodiment of the utility model, the constructional column at least comprises a first constructional column section and a second constructional column section which is vertically connected with the first constructional column section; the constructional column ribs at least comprise first ribs positioned in the first constructional column section and second ribs which are hung with the lower ends of the first ribs and positioned in the second constructional column section. The multi-section design can help to realize the reverse construction method of constructing and constructing the column while digging soil, thereby accelerating the construction progress. In addition, the lower extreme of first rib has been articulated to be located the inside second rib of second constructional column section can help realizing digging the in-process of building the constructional column while building the lengthened constructional column that the multistage is connected.
5. In the cylindrical foundation pit structure of the embodiment of the present invention, the cylindrical foundation pit structure further includes an annular rib, and the annular rib is disposed between the first structural column section and the second structural column section, and is respectively and fixedly connected to the first structural column section and the second structural column section, so as to form a radial support for the cylindrical retaining wall structure; wherein the construction column ribs comprise at least a first rib located inside the first construction column section, and a second rib located inside the second construction column section; and third ribs are arranged in the annular rib beam and are respectively connected with the lower ends of the first ribs and the upper ends of the second ribs in a hanging mode. Above design can realize the limit and excavate, and the limit is built and is used for forming the rib roof beam of internal stay structure, and simultaneously, multistage constructional column links together through interior muscle each other with the rib roof beam, does benefit to the construction shaping to and multistage constructional column and rib roof beam can form a holistic vertical and circumference internal stay again, with form further guard action to cartridge type foundation ditch structure.
6. The annular capping beams are reinforced concrete capping beams, the constructional columns are reinforced concrete capping beams, and the annular rib beams are reinforced concrete rib beams, so that the annular capping beams and the annular rib beams can be poured together to form a whole.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic vertical view of a first embodiment of a cylindrical foundation pit structure according to the present invention;
FIG. 2 is a schematic vertical view of a second embodiment of the cylindrical foundation pit structure according to the present invention;
FIG. 3 is an enlarged schematic view of the connection of the cap to the construction column of FIG. 2;
FIG. 4 is a schematic vertical view of a third embodiment of the cylindrical foundation pit structure of the present invention;
FIG. 5 is an enlarged schematic view of the junction of the first construction column section and the second construction column section of FIG. 4;
FIG. 6 is a schematic vertical view of a fourth embodiment of the cylindrical foundation pit structure according to the present invention;
figure 7 is an enlarged schematic view of the connection of the first constructional column section, the second constructional column section and the rib beam of figure 6.
Description of reference numerals:
1-a cylindrical retaining wall structure;
2-annular capping beam; 21-a first structure; 22-a second structure; 23-bending ribs; 231-first section; 232-a second segment;
3-constructing a column; 31-constructing a column rib; 33-a first constructional column section; 34-a second constructional column section; 311-first ribs; 312-a second tendon;
4-an annular rib beam; 41-third ribs;
Detailed Description
Example 1
As shown in fig. 1, the present embodiment provides a cylindrical foundation pit structure, which specifically includes: a cylindrical retaining wall structure 1; and annular capping beam 2, set up in cylindrical retaining wall structure 1's top, annular capping beam 2 is including being located the first structure 21 of cylindrical retaining wall structure 1 top, and with what first structure 21 meets along cylindrical retaining wall structure 1's inner wall downwardly extending, and with the second structure 22 of inner wall laminating. The annular capping beam 2 is arranged at the top of the cylindrical retaining wall structure 1 in a pouring or lap joint mode. Furthermore, the annular capping beam 2 may also have a plurality of radially arranged bending ribs 23 inside; the bending webs 23 have a first section 231 in the first structure 21 and a second section 232 in the second structure 22. Wherein the second structure is preferably a circumferentially continuous structure.
Example 2
As shown in fig. 2, the present embodiment provides a cylindrical foundation pit structure, which specifically includes: a cylindrical retaining wall structure 1; and annular capping beam 2, set up in cylindrical retaining wall structure 1's top, annular capping beam 2 is including being located the first structure 21 of cylindrical retaining wall structure 1 top, and with what first structure 21 meets along cylindrical retaining wall structure 1's inner wall downwardly extending, and with the second structure 22 of inner wall laminating. The annular capping beam 2 is arranged at the top of the cylindrical retaining wall structure 1 in a pouring or lap joint mode. Furthermore, the annular capping beam 2 may also have a plurality of radially arranged bending ribs 23 inside; the bending webs 23 have a first section 231 in the first structure 21 and a second section 232 in the second structure 22.
The tubular foundation pit structure of this embodiment still includes: the upper ends of the plurality of circumferentially arranged constructional columns 3 are connected with the lower ends of the second structures 22 of the annular capping beams 2, and the lower ends of the constructional columns are supported at the bottom of the cylindrical foundation pit structure; the construction column 3 has a construction column rib 31 therein, and as shown in fig. 3, the construction column rib 31 is hooked to the lower end of the second section 232 of the bent rib. Specifically, the lower end of the second section 232 has a first hooking structure exposed to the outside of the second structure 22, and the upper end of the construction post tendon has a second hooking structure cooperating with the first hooking structure; in a preferred embodiment, the second structure is integrally cast with the construction column, and the first and second hooking structures are located inside the construction column.
Example 3
As shown in fig. 4, the present embodiment is different from embodiment 2 in that: the construction column 3 comprises at least a first construction column section 33, and a second construction column section 34 vertically connected to the first construction column section 33; as shown in fig. 5, the construction column ribs 31 at least include a first rib 311 located inside the first construction column section 33, and a second rib 312 hooked to a lower end of the first rib 311 and located inside the second construction column section 34, and the first rib and the second rib are hooked to each other. Specifically, the lower end of the first rib 311 has a third hooking structure exposed to the outside of the first structural column section 33, and the upper end of the second rib 312 has a fourth hooking structure hooked with the third hooking structure. In a preferred embodiment, the first construction column section 33 and the second construction column section 34 are integrally cast, and the third and fourth hooking structures are located inside the construction column.
Example 4
As shown in fig. 6, the present embodiment is different from embodiment 2 in that: the constructional column comprises at least a first and a second constructional column section 33, 34 arranged vertically; the cylindrical foundation pit structure further comprises an annular rib beam 4, wherein the annular rib beam 4 is arranged between the first construction column section 33 and the second construction column section 34 and is fixedly connected with the first construction column section 33 and the second construction column section 34 respectively; wherein, as shown in fig. 7, the construction column ribs 31 comprise at least a first rib 311 located inside the first construction column section 33, and a second rib 312 located inside the second construction column section 34; the annular rib beam 4 is internally provided with third ribs 41, and the third ribs 41 are respectively hooked with the lower ends of the first ribs 311 and the upper ends of the second ribs 312.
Specifically, the lower end of the first rib 311 has a third hooking structure exposed to the outside of the first structural column section 33, the upper end of the second rib 312 has a fourth hooking structure, the third rib 41 has a fifth hooking structure at the upper end and a sixth hooking structure at the lower end, the third hooking structure is hooked with the fifth hooking structure, and the fourth hooking structure is hooked with the sixth hooking structure. In a preferred embodiment, the first structural column section 33, the second structural column section 34 and the rib beam 4 are integrally cast, the third and fifth hanging structures are located inside the rib beam 4, and the fourth and sixth hanging structures are located inside the second structural column section 34.
In the tubular foundation pit structure according to the above embodiments 1 to 4, the tubular retaining wall structure is formed by engaging a plurality of circumferentially arranged pile bodies with each other; in addition, in order to improve the supporting capacity, the constructional column can be designed into a constructional wall body which is arranged in a circumferential continuous joint mode. The annular capping beam is a reinforced concrete capping beam, the constructional column is a reinforced concrete capping beam, and the annular rib beam is a reinforced concrete rib beam. The annular capping beam is a prefabricated capping beam or a cast-in-place capping beam, in addition, the constructional column is a prefabricated constructional column, and the prefabricated constructional column is hung with the hanging structure of the annular capping beam or the constructional column at the upper part through a self hanging structure and then poured into a whole; the constructional column can also be a cast-in-place constructional column, namely, the constructional column is formed by building a mould for pouring construction on site.
It should be particularly noted that in the above embodiments, when concrete is poured, the boundary lines between the annular capping beams, the constructional columns and the rib beams are not easily seen after the concrete reaches the age, but the position where the part formed or poured first meets the part formed or poured later is the boundary line according to the sequence of the formation or pouring in the construction process; the term "outside" of the hitching structure refers to a portion outside the outer contour of the main body of the corresponding portion, for example, when concrete is poured into each portion, the outside refers to the outside of the concrete body of the corresponding portion. In the above-described articulated connection achieved by the hitching structure, the tendons in the upper structure are able to ensure that the weight of all the hitched structures (including the final structural column section and/or the rib) in the lower part can be borne, to ensure the proper implementation of the counter-construction method.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. A cartridge type foundation pit structure comprising:
a cylindrical retaining wall structure;
the method is characterized in that:
the annular capping beam set up in the top of barrel-type retaining wall structure, including being located the first structure of barrel-type retaining wall structure top, and with what first structure meets along barrel-type retaining wall structure's inner wall downwardly extending and with the second structure of inner wall laminating.
2. The tubular foundation pit structure of claim 1, wherein: the annular capping beam is arranged at the top of the cylindrical retaining wall structure in a pouring or lap joint mode.
3. The tubular foundation pit structure according to claim 2, wherein: a plurality of bending ribs which are radially arranged are arranged inside the annular capping beam; wherein the bending rib has a first section located in the first structure and a second section located in the second structure.
4. The tubular foundation pit structure of claim 3, further comprising:
the upper ends of the plurality of construction columns are connected with the lower end of the second structure of the annular capping beam, and the lower ends of the plurality of construction columns are supported at the bottom of the cylindrical foundation pit structure;
the inner part of the constructional column is provided with constructional column ribs, and the constructional column ribs are hung and connected with the lower ends of the second sections of the bending ribs; the lower end of the second section is provided with a first hanging structure, and the upper end of the constructional column rib is provided with a second hanging structure which is hung and connected with the first hanging structure; the first hanging structure is exposed outside the second structure, the second structure and the constructional column are poured into a whole, and the first hanging structure and the second hanging structure are located inside the constructional column.
5. The tubular foundation pit structure according to claim 4,
the constructional column at least comprises a first constructional column section and a second constructional column section which is vertically connected with the first constructional column section;
the constructional column ribs at least comprise first ribs positioned in the first constructional column section and second ribs which are hung with the lower ends of the first ribs and positioned in the second constructional column section;
the lower end of the first rib is provided with a third hanging structure, the upper end of the second rib is provided with a fourth hanging structure hung with the third hanging structure, and the third hanging structure is exposed outside the first constructional column section; the first constructional column section and the second constructional column section are poured into a whole, and the third hanging structure and the fourth hanging structure are located in the second constructional column section.
6. The barrel foundation pit structure of claim 4, wherein the construction column comprises at least a first construction column section and a second construction column section arranged vertically;
the cylindrical foundation pit structure further comprises an annular rib beam, wherein the annular rib beam is arranged between the first constructional column section and the second constructional column section, is fixedly connected with the first constructional column section and the second constructional column section respectively, and is used for forming radial support for the cylindrical retaining wall structure;
wherein the construction column ribs comprise at least a first rib located inside the first construction column section, and a second rib located inside the second construction column section; third ribs are arranged inside the annular rib beam and are respectively connected with the lower ends of the first ribs and the upper ends of the second ribs in a hanging mode;
the lower end of the first rib is provided with a third hanging structure, the third hanging structure is exposed outside the first constructional column section, the upper end of the second rib is provided with a fourth hanging structure, the third rib is provided with a fifth hanging structure at the upper end and a sixth hanging structure at the lower end, the third hanging structure is hung with the fifth hanging structure, and the fourth hanging structure is hung with the sixth hanging structure; the first constructional column section, the second constructional column section and the rib beam are poured into a whole, the third hanging structure and the fifth hanging structure are located inside the rib beam, and the fourth hanging structure and the sixth hanging structure are located inside the second constructional column section.
7. The barrel pit structure of claim 6, wherein the annular capping beam is a reinforced concrete capping beam, the construction column is a reinforced concrete construction column, and the annular rib beam is a reinforced concrete rib beam.
8. The barrel type foundation pit structure of claim 7, wherein said barrel type retaining wall structure is formed by a plurality of circumferentially arranged piles engaged with each other.
9. The barrel pit structure of claim 7, wherein the annular capping beam is a prefabricated capping beam or a cast-in-place capping beam, and/or the constructional column is a prefabricated constructional column or a cast-in-place constructional column.
10. The barrel pit structure as claimed in claim 1, wherein the second structure is a circumferentially continuous structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022844368.XU CN216194766U (en) | 2020-11-30 | 2020-11-30 | Cylindrical foundation pit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022844368.XU CN216194766U (en) | 2020-11-30 | 2020-11-30 | Cylindrical foundation pit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216194766U true CN216194766U (en) | 2022-04-05 |
Family
ID=80857540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022844368.XU Active CN216194766U (en) | 2020-11-30 | 2020-11-30 | Cylindrical foundation pit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216194766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343060A (en) * | 2020-11-30 | 2021-02-09 | 江西基业科技集团有限公司 | Forward and reverse composite construction method for cylindrical foundation pit structure |
-
2020
- 2020-11-30 CN CN202022844368.XU patent/CN216194766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343060A (en) * | 2020-11-30 | 2021-02-09 | 江西基业科技集团有限公司 | Forward and reverse composite construction method for cylindrical foundation pit structure |
| CN112343060B (en) * | 2020-11-30 | 2024-06-21 | 江西基业科技集团有限公司 | Clockwise and anticlockwise composite construction method for cylindrical foundation pit structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202466845U (en) | Middle-layer node connecting structure for steel tube concrete column and steel reinforced concrete beam | |
| CN207130606U (en) | Flexing suppress round end type concrete pier of steel tube and with cushion cap attachment structure | |
| CN106545088A (en) | The switching node and implementation of a kind of upper strata concrete column and lower floor's steel core concrete column | |
| CN111364352A (en) | Prefabricated pipe pier and cast-in-place pile connecting structure and construction method | |
| CN216194766U (en) | Cylindrical foundation pit structure | |
| CN216108514U (en) | Cylindrical foundation pit structure | |
| CN111305627B (en) | Concrete tank room construction method | |
| CN213233111U (en) | Concrete filled steel tube pier connecting structure with PBL (Poly-p-phenylene benzobisoxazole) shear keys | |
| CN212897188U (en) | Pile foundation joist weighing type steel reinforcement cage for retaining wall | |
| CN101117801A (en) | Superposition pile for engineering reconstruction and pile forming method | |
| CN211772853U (en) | Assembled suspension bridge tower | |
| CN112343058A (en) | Cylindrical foundation pit structure | |
| CN110700109A (en) | Construction process of concrete arch ring of steel pipe stiff skeleton of bridge | |
| CN217537350U (en) | Assembled type steel reinforced concrete beam column connecting node with inner and outer steel sleeves | |
| CN215483004U (en) | Expansive soil stratum ultra-deep shaft supporting structure | |
| CN210288497U (en) | Anti-floating and anti-pulling device applied to basement of building | |
| CN212801168U (en) | Single-column pier bridge concreties antidumping reinforced structure | |
| CN210507422U (en) | Manual hole digging cast-in-place pile for reinforcing retaining wall and reinforcement cage | |
| CN112575676B (en) | Track support assembly and construction method thereof | |
| CN210395453U (en) | Basement exposes tubular pile protection architecture | |
| CN219793937U (en) | Foundation pit supporting structure supported by outer ring | |
| CN212153440U (en) | Large-diameter concrete filled steel tubular column base structure of underground large-span structure | |
| CN219011192U (en) | Foundation trench maintenance filling pile structure | |
| CN219862830U (en) | Double-ring-supported foundation pit supporting structure | |
| CN112343060B (en) | Clockwise and anticlockwise composite construction method for cylindrical foundation pit structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |