CN210712865U - Local inner support system of deep foundation pit - Google Patents
Local inner support system of deep foundation pit Download PDFInfo
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- CN210712865U CN210712865U CN201921212916.8U CN201921212916U CN210712865U CN 210712865 U CN210712865 U CN 210712865U CN 201921212916 U CN201921212916 U CN 201921212916U CN 210712865 U CN210712865 U CN 210712865U
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Abstract
The utility model discloses a local inner support system of deep basal pit, including first node unit, second node unit and supporting beam, first node unit includes first concrete placement and second concrete placement, the inside of first concrete placement is inserted and is equipped with a plurality of first strengthening ribs that are vertical state, second node unit includes third concrete placement and third strengthening rib, the common welding has the connecting seat between the tip of third strengthening rib front end, and also the common welding has the connecting seat between the tip of the front end of second strengthening rib, the welding has the connector that the cross-section is the L type at supporting beam's both ends. The utility model discloses at the in-process of setting up the use, control deformability is strong, save the time limit for a project, reduce uncertain factor, space utilization height, saving engineering cost, the economic benefits that influence foundation ditch safety and show, are favorable to using widely.
Description
Technical Field
The utility model relates to a foundation ditch construction technical field especially relates to a local inner support system of deep basal pit.
Background
As the number of high-rise buildings and the height of the high-rise buildings increase, the foundation burial depth also increases. After the 90 s, a plurality of super high-rise buildings gradually appear, so that the burial depth of some basements reaches more than 20 meters, higher and tighter requirements are provided for the foundation pit excavation technology, namely, the stability of a side slope is ensured, the requirements of deformation control are met, the safety of buildings, underground pipelines, roads and the like around the foundation pit is ensured, and the large-span reinforced concrete inner supporting beam or the circular ring arch-shaped reinforced concrete inner supporting support is fully developed.
However, when there is an important building facility outside the foundation pit, if the building facility is deformed obviously during construction due to excessive horizontal displacement of the foundation pit support or other conditions, social panic will be caused, and social image and economic benefit of enterprises will be seriously affected; when the new project is a building with a large building area, a large foundation pit is formed, the comprehensive inner support prolongs the construction period, and the construction cost is increased. Therefore, the local inner supporting system for the deep foundation pit is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a local inner support system for a deep foundation pit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a local inner supporting system for a deep foundation pit comprises a first node unit, a second node unit and a supporting cross beam, wherein the first node unit comprises a first concrete casting body and a second concrete casting body, a plurality of first reinforcing ribs in a vertical state are inserted into the first concrete casting body, the first reinforcing ribs are uniformly distributed in the first concrete casting body, the lower end of each first reinforcing rib extends to the lower portion of the lower end of the first concrete casting body, the second concrete casting body is uniformly distributed on the surface of the rear side of the first concrete casting body, a plurality of L-shaped second reinforcing ribs are uniformly distributed in the second concrete casting body, one end of each second reinforcing rib in a horizontal state extends to the front side of the inside of the first concrete casting body, one end of each second reinforcing rib in a vertical state extends to the lower portion of the lower end of the second concrete casting body, the utility model discloses a concrete bridge structure, including first strengthening rib, second strengthening rib, third strengthening rib, connecting seat upper end, supporting beam, second node unit, second strengthening rib and first strengthening rib, the part that the second strengthening rib and first strengthening rib contacted ties up mutually, second node unit includes third concrete placement and third strengthening rib, third strengthening rib evenly distributed is at third concrete placement internal and be the horizontality, the rear end of third strengthening rib extends to the outside of third concrete placement rear end, common welding has the connecting seat between the tip of third strengthening rib front end, just also common welding has the connecting seat between the tip of the front end of second strengthening rib, the hole of inserting has been seted up to the both sides at connecting seat up end middle part, the welding of the both ends of supporting beam has the connector that the cross-section is the L type, the middle part both sides welding that is the lower surface of hori.
Preferably, the first node unit is arranged on the surface of the concrete structure in a horizontal state at the foundation pit.
Preferably, the second node unit is arranged on the surface of the concrete structure in a vertical state at the foundation pit.
Preferably, the first concrete casting and the second concrete casting are of a one-piece structure.
Preferably, first annular ribs are sleeved between the first reinforcing ribs on the two adjacent sides in the upper end of the first concrete pouring body, and the parts, which are in contact with the first reinforcing ribs, of the first annular ribs are connected in a bundling mode.
Preferably, a plurality of second annular ribs and third annular ribs are sleeved between third reinforcing ribs in the third concrete casting body in a layered mode, the third annular ribs are located on the inner sides of the second annular ribs, and the portions, in contact with the third reinforcing ribs, of the second annular ribs and the third annular ribs are connected in a bundled mode.
Preferably, a through hole is formed in the horizontal part of the connecting head, a connecting screw rod is inserted into the through hole, a matched threaded connecting hole is formed in the upper end face of the connecting seat corresponding to the connecting screw rod on the connecting head, and the lower end of the connecting screw rod extends into the threaded connecting hole.
The utility model provides a local inner support system of deep basal pit, beneficial effect lies in: in the application process, the corresponding first node unit or second node unit can be poured according to the structures on two sides of the foundation pit on the same horizontal plane, specifically, the first node unit is poured on two sides of the foundation pit on the same horizontal plane, the second node unit is poured on two sides of the foundation pit on the same horizontal plane, and the first node unit and the second node unit are respectively poured on two sides of the foundation pit on the same horizontal plane, at the moment, the connectors at two ends of the supporting cross beam can be connected, and therefore, the local inner supporting system is formed between two sides of the foundation pit on the same horizontal plane, specifically, the inserting rod on the connector is inserted into the inserting hole of the connecting seat in the connection process, and the connecting screw rod is inserted into the threaded connecting hole to ensure that the connection between the whole local inner supporting systems is stable and firm, so that the whole local inner supporting system is simple and convenient to erect, namely, the construction, The construction cost is saved; the whole local inner support system is stable and firm, so that the deformation control capability of the system is strong, and uncertain factors influencing the safety of a foundation pit can be effectively reduced; the whole local inner supporting system is simple in structure, the occupied space in the building process is small, and the space utilization rate of a foundation pit is improved, so that the economic benefit of the whole local inner supporting system in the building and using process is remarkable, and the popularization and the use are facilitated.
Drawings
Fig. 1 is a schematic structural diagram of a supporting beam of a local inner support system for a deep foundation pit, according to the present invention, two ends of the supporting beam are respectively connected to a first node unit and a second node unit;
fig. 2 is a schematic structural diagram of the support beam of the local inner support system for a deep foundation pit according to the present invention, wherein both ends of the support beam are connected to the first node unit;
fig. 3 is a schematic structural diagram of the support beam of the local inner support system for a deep foundation pit according to the present invention, wherein both ends of the support beam are connected to the second node unit;
fig. 4 is a front view of a first node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 5 is a top view of a first node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 6 is a left side view of a first node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 7 is a sectional view taken along the direction a-a of a first node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 8 is a B-B sectional view of a first node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 9 is a front view of a second node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 10 is a C-C sectional view of a second node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 11 is a D-D sectional view of a second node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 12 is a top view of a second node unit of the local inner support system of the deep foundation pit according to the present invention;
fig. 13 is a schematic structural diagram of a supporting beam of the local inner supporting system of the deep foundation pit according to the present invention;
fig. 14 is a top view of a connector of the local inner support system of the deep foundation pit according to the present invention;
fig. 15 is a schematic view of a connection between a first node unit of the local inner support system of the deep foundation pit and a surface of a horizontal concrete structure according to the present invention;
fig. 16 is a schematic view of the connection between the second node unit of the local inner support system of the deep foundation pit and the surface of the concrete structure in a vertical state according to the present invention.
In the figure: the first node unit 1, the first concrete casting 101, the second concrete casting 102, the first reinforcing rib 103, the second reinforcing rib 104, the first annular rib 105, the second node unit 2, the third concrete casting 201, the third reinforcing rib 202, the second annular rib 203, the third annular rib 204, the supporting cross beam 3, the connector 4, the connecting seat 5, the inserting rod 6, the inserting hole 7, the threaded connecting hole 8 and the connecting screw 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-16, the local inner support system for the deep foundation pit comprises a first node unit 1, a second node unit 2 and a support cross beam 3, wherein the first node unit 1 comprises a first concrete casting 101 and a second concrete casting 102, and the first concrete casting 101 and the second concrete casting 102 are of an integrated structure.
A plurality of first reinforcing ribs 103 in a vertical state are inserted into the first concrete casting 101, the first reinforcing ribs 103 are uniformly distributed in the first concrete casting 101, the lower ends of the first reinforcing ribs 103 extend to the lower portion of the lower end of the first concrete casting 101, the second concrete casting 102 is uniformly distributed on the surface of the rear side of the first concrete casting 101, a plurality of second reinforcing ribs 104 in an L shape are uniformly distributed in the second concrete casting 102, one end of the second reinforcing rib 104 in a horizontal state extends to the front side of the interior of the first concrete casting 101, one end of the second reinforcing rib 104 in a vertical state extends to the lower portion of the lower end of the second concrete casting 102, and the portions of the second reinforcing rib 104, which are in contact with the first reinforcing ribs 103, are bundled.
All the cover is equipped with first ring muscle 105 between the first strengthening rib 103 of the inside adjacent both sides in first concrete pouring body 101 upper end, and the part that contacts between first ring muscle 105 and the first strengthening rib 103 is tied up and is connected, and first ring muscle 105 can strengthen the structural strength between the first strengthening rib 103 upper end, and then makes the structural strength of whole first node unit 1 obtain the reinforcing.
The first node unit 1 is arranged on the surface of a concrete structure in a horizontal state at a foundation pit, the surface of the foundation pit is in a horizontal state and is a main structure template or a main structure beam, the first node unit 1 is arranged on the upper surface of the corresponding main structure template or the upper surface of the main structure beam, and the first reinforcing rib 103 and the second reinforcing rib 104 which are positioned outside the first node unit 1 are inserted into the main structure template or the main structure beam.
The second node unit 2 comprises a third concrete casting 201 and a third reinforcing rib 202, the third reinforcing rib 202 is uniformly distributed in the third concrete casting 201 and is in a horizontal state, the rear end of the third reinforcing rib 202 extends to the outer side of the rear end of the third concrete casting 201, a plurality of second annular ribs 203 and third annular ribs 204 are sleeved between the third reinforcing ribs 202 in the third concrete casting 201 in a layered mode, the third annular ribs 204 are located on the inner sides of the second annular ribs 203, the portions, which are in contact with the third reinforcing rib 202, of the second annular ribs 203 and the third annular ribs 204 are connected in a bundled mode, and the structural strength of the second node unit 2 can be enhanced due to the fact that the second annular ribs 203 and the third annular ribs 204 are arranged.
The second node unit 2 is arranged on the surface of the concrete structure in a vertical state at the foundation pit, and the surface of the foundation pit is a structural column in a vertical state, and the third reinforcing rib 202 exposed outside the third concrete casting 201 is inserted into the structural column.
The common welding has connecting seat 5 between the tip of third strengthening rib 202 front end, and also has connecting seat 5 common welding between the tip of the front end of second strengthening rib 104, and the both sides at connecting seat 5 up end middle part have been seted up and have been inserted and establish hole 7, and the both ends welding of supporting beam 3 has connector 4 that the cross-section is the L type, and the middle part both sides welding that is the lower surface of horizontality on connector 4 has and inserts and establish pole 6, inserts and establish the hole 7 phase-match of inserting on pole 6 and the connecting seat 5.
The part of the connector 4 in the horizontal state is provided with a through hole and a connecting screw rod 9 in an inserted mode, the upper end face of the connecting seat 5 is provided with a matched threaded connecting hole 8 corresponding to the connecting screw rod 9 on the connector 4, and the lower end of the connecting screw rod 9 extends into the threaded connecting hole 8.
The supporting cross beam 3 can be connected with the first node units 1 or the second node units 2 through the connectors 4 at the end parts, in the connection process, the inserting rods 6 on the connectors 4 are inserted into the inserting holes 7 of the connecting seats 5, so that the connection between the supporting cross beam 3 and the first node units 1 or the second node units 2 through the connectors 4 at the end parts becomes simple, convenient and easy to operate, and the connection between the supporting cross beam 3 and the first node units 1 or the second node units 2 becomes tight and firm along with the fact that the connecting screw rods 9 on the connectors 4 extend into the threaded connecting holes 8 of the connecting seats 5, so that the supporting cross beam 3 can be connected with the two first node units 1 through the connectors 4 at the two ends; the supporting beam 3 can be connected with the two second node units 2 through the connectors 4 at the two ends, and the supporting beam 3 can be connected with the first node unit 1 and the second node unit 2 through the connectors 4 at the two ends respectively.
In summary, the following steps: in the application process of the utility model, the corresponding first node unit 1 or second node unit 2 can be poured according to the concrete structures on the two sides of the foundation pit on the same horizontal plane, specifically, the first node unit 1 is poured on the two sides of the foundation pit on the same horizontal plane, the second node unit 2 is poured on the two sides of the foundation pit on the same horizontal plane, and the first node unit 1 and the second node unit 2 are respectively poured on the two sides of the foundation pit on the same horizontal plane, at the moment, the connectors 4 on the two ends of the supporting beam 3 can be connected, and the local inner support system is formed between the two sides of the foundation pit on the same horizontal plane, specifically, the inserting rod 6 on the connector 4 is inserted in the inserting hole 7 of the connecting seat 5 in the connection process, and the connecting screw rod 9 is rotatably inserted into the threaded connecting hole 8, so as to ensure the stable and firm connection between the whole local inner support systems, therefore, the, namely, the construction period and the construction cost can be saved in the process of erection and use; the whole local inner support system is stable and firm, so that the deformation control capability of the system is strong, and uncertain factors influencing the safety of a foundation pit can be effectively reduced; the whole local inner supporting system is simple in structure, the occupied space in the building process is small, and the space utilization rate of a foundation pit is improved, so that the economic benefit of the whole local inner supporting system in the building and using process is remarkable, and the popularization and the use are facilitated.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The local inner support system for the deep foundation pit comprises a first node unit (1), a second node unit (2) and a supporting cross beam (3), and is characterized in that the first node unit (1) comprises a first concrete casting (101) and a second concrete casting (102), a plurality of first reinforcing ribs (103) in a vertical state are inserted into the first concrete casting (101), the first reinforcing ribs (103) are uniformly distributed in the first concrete casting (101), the lower ends of the first reinforcing ribs (103) extend to the lower end of the first concrete casting (101), the second concrete casting (102) are uniformly distributed on the surface of the rear side of the first concrete casting (101), a plurality of second reinforcing ribs (104) in an L shape are uniformly distributed in the second concrete casting (102), and one ends of the second reinforcing ribs (104) in a horizontal state extend to the inner side of the first concrete casting (101) The front side of the second joint unit comprises a second reinforcing rib (104), one end of the second reinforcing rib (104) in a vertical state extends to the lower portion of the lower end of a second concrete casting body (102), the part of the second reinforcing rib (104) in contact with a first reinforcing rib (103) is bundled, the second joint unit (2) comprises a third concrete casting body (201) and a third reinforcing rib (202), the third reinforcing rib (202) is uniformly distributed in the third concrete casting body (201) and is in a horizontal state, the rear end of the third reinforcing rib (202) extends to the outer side of the rear end of the third concrete casting body (201), connecting seats (5) are welded between the end portions of the front ends of the third reinforcing rib (202) together, connecting seats (5) are welded between the end portions of the front ends of the second reinforcing rib (104) together, and inserting holes (7) are formed in the two sides of the middle portion of the upper end face of each connecting seat (5), the connecting device is characterized in that connectors (4) with L-shaped sections are welded at two ends of the supporting cross beam (3), inserting rods (6) are welded on two sides of the middle of the lower surface of the connector (4) in a horizontal state, and the inserting rods (6) are matched with inserting holes (7) in the connecting seat (5).
2. A local internal support system for deep foundation pits according to claim 1, characterized in that the first node unit (1) is arranged on the surface of the concrete structure in a horizontal state at the foundation pit.
3. A deep foundation pit local internal support system according to claim 1, wherein the second node unit (2) is provided on the surface of the concrete structure in a vertical state at the foundation pit.
4. The local internal support system for a deep foundation pit according to claim 1, wherein the first concrete casting (101) and the second concrete casting (102) are of a one-piece structure.
5. The local inner support system for the deep foundation pit as claimed in claim 1, wherein a first annular rib (105) is sleeved between the adjacent first reinforcing ribs (103) on two sides inside the upper end of the first concrete casting (101), and the first annular rib (105) is connected with the first reinforcing rib (103) in a binding manner at the contact part.
6. The local inner support system for the deep foundation pit is characterized in that a plurality of second annular ribs (203) and third annular ribs (204) are sleeved among the third reinforcing ribs (202) in the third concrete casting (201) in a layered mode, the third annular ribs (204) are located on the inner sides of the second annular ribs (203), and the portions, in contact with the third reinforcing ribs (202), of the second annular ribs (203) and the third annular ribs (204) are connected in a bundling mode.
7. The local inner support system for the deep foundation pit according to claim 1, wherein a horizontal portion of the connector (4) is provided with a through hole and a connecting screw rod (9) is inserted, the upper end surface of the connecting seat (5) is provided with a matching threaded connecting hole (8) corresponding to the connecting screw rod (9) on the connector (4), and the lower end of the connecting screw rod (9) extends into the threaded connecting hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212916.8U CN210712865U (en) | 2019-07-30 | 2019-07-30 | Local inner support system of deep foundation pit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921212916.8U CN210712865U (en) | 2019-07-30 | 2019-07-30 | Local inner support system of deep foundation pit |
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| CN210712865U true CN210712865U (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424404A (en) * | 2019-07-30 | 2019-11-08 | 中铁建设集团有限公司 | A kind of deep basal pit part inner support system |
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2019
- 2019-07-30 CN CN201921212916.8U patent/CN210712865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424404A (en) * | 2019-07-30 | 2019-11-08 | 中铁建设集团有限公司 | A kind of deep basal pit part inner support system |
| CN110424404B (en) * | 2019-07-30 | 2024-06-07 | 中铁建设集团有限公司 | Deep foundation pit local inner support system |
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