Deep foundation pit supporting structure

Abstract

The utility model provides a deep foundation pit supporting structure. The deep foundation pit supporting structure comprises a fence unit, a supporting unit and a reinforcing unit. Each fence unit is of a rectangular frame structure formed by connecting and enclosing longitudinal baffles and transverse baffles which are vertically arranged; each supporting unit comprises a supporting column installed in the area defined by the corresponding fence unit, a butt joint piece installed on the corresponding longitudinal baffle and a supporting rod, wherein one end of each supporting rod is detachably connected with the corresponding butt joint piece, and the other end of each supporting rod is detachably connected with the corresponding supporting column. The reinforcing unit is installed at the included angle position of the fence unit and comprises a reinforcing beam and an installation base for installing the two ends of the reinforcing beam to the adjacent longitudinal baffle and the transverse baffle. The deep foundation pit supporting structure is more attached to the pit wall, high in adaptability, high in stability and convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, in particular to a deep foundation pit supporting structure. Background Art

[0002] The foundation pit is a soil pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. The foundation pit project mainly includes the design and construction of the foundation pit support system and earth excavation. It is a highly comprehensive system project. The foundation pit project is an underground space excavated from the ground. In order to ensure the stability of the foundation pit project and the safety of the pit operation, and to prevent soil collapse and foundation pit deformation, support structures are usually set up around the pit.

[0003] Existing foundation pit support structures are mostly supported by beams and columns, which have poor stability and adaptability, limited fit with the pit wall, easily form gaps, and are time-consuming and labor-intensive to disassemble and install. Utility Model Content

[0004] In view of this, in order to solve the above technical problems, the utility model proposes a deep foundation pit support structure with reasonable structural design, better fit with the pit wall, strong adaptability, high stability and easy disassembly and assembly.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A deep foundation pit support structure, comprising:

[0007] The enclosure unit is a rectangular frame structure formed by connecting and enclosing vertically arranged longitudinal baffles and transverse baffles;

[0008] A support unit, the support unit comprising a support column installed in the area enclosed by the enclosure unit, a docking piece installed on the longitudinal baffle, and a support rod having one end detachably connected to the docking piece and the other end detachably connected to the support column;

[0009] A reinforcement unit is installed at the angle between the longitudinal baffle and the transverse baffle, and comprises a reinforcement beam and mounting seats for mounting the two ends of the reinforcement beam on the adjacent longitudinal baffle and the transverse baffle.

[0010] The enclosure unit is used to enclose the soil of the pit wall, and the support unit supports the enclosure unit in the horizontal direction. By setting support columns as the supporting base, the enclosure unit is supported by the support rods to make the enclosure unit fit better with the pit wall, and combined with the reinforcement unit, the support structure can be made more stable. In addition, the support unit and the enclosure unit, as well as the reinforcement unit and the enclosure unit are all detachably connected, making disassembly, assembly and transportation more convenient.

[0011] Furthermore, the joints between the longitudinal baffle and the transverse baffle are buckled through slots and fixed and locked by bolts and nuts.

[0012] The longitudinal baffle and the transverse baffle bracket are connected by means of slot buckling, which is convenient for disassembly or assembly, can be recycled for secondary use, and is convenient for transportation.

[0013] Furthermore, the longitudinal baffle is formed by splicing a plurality of longitudinal combination plates in the longitudinal direction, and the joints are buckled by slots; the transverse baffle is formed by splicing a plurality of transverse combination plates in the transverse direction, and the joints are buckled by slots.

[0014] The longitudinal baffles and the transverse baffles are spliced ​​together and can be combined and set according to the conditions of the construction site. They are more convenient to use and have stronger adaptability.

[0015] Furthermore, the transverse combined plate includes a transverse end plate connected to the longitudinal baffle and a plurality of transverse combined narrow plates located in the middle position; the transverse end plate and the transverse combined narrow plate, and the transverse combined narrow plates and the transverse combined narrow plates are all fastened together through slots; the plurality of transverse combined narrow plates located in the middle position are also provided with transversely arranged reinforcing ribs, and the two ends of the reinforcing ribs are respectively fixed to the two transverse end plates.

[0016] The transverse baffle composed of the transverse end plate and the transverse combined narrow plate is reinforced and supported with the longitudinal baffle by the reinforcement unit as a whole, and the longitudinal baffle is reinforced and supported by the supporting unit, that is, the overall reinforcement and support of the longitudinal baffle and the transverse baffle is realized; and the setting of the transverse combined narrow plate is conducive to adapting to the actual situation of the construction site, and then combined and spliced ​​to make the enclosure unit more suitable for the foundation pit, and the stability of the transverse combined narrow plate is strengthened by setting reinforcing ribs, thereby improving the overall stability of the transverse baffle.

[0017] Furthermore, the support column includes a base, a column vertically arranged on the base, and an insert block arranged on the column; the docking part includes a mounting plate detachably fixed to the longitudinal baffle and a threaded cylinder seat fixed to the mounting plate; one end of the support rod is detachably connected to the threaded cylinder seat via a thread, and the other end of the support rod is provided with a plug connector adapted to the insert block, which is fixed by a pin after the insert block is buckled with the plug connector.

[0018] One end of the support rod is detachably connected to the threaded cylinder seat through a thread, and the other end is connected by a plug block and a plug connector, and is fixed by a pin, which makes installation and disassembly more convenient, saving time and effort.

[0019] Furthermore, the support rod includes a connecting rod, a plug-in rod and a telescopic rod; both ends of the connecting rod are provided with external threads with opposite thread directions, and one end of the connecting rod is detachably connected to a threaded cylinder seat through threads; the interior of the plug-in rod is hollow, and one end thereof is provided with an internal thread adapted to the external thread of the connecting rod, and the other end of the connecting rod is connected to one end of the plug-in rod through threads; one end of the telescopic rod is telescopically inserted into the cavity at the other end of the plug-in rod, and the plug-in connector is fixed to the other end of the telescopic rod, and both the telescopic rod and the plug-in rod are provided with through holes for fixing the position of the telescopic rod, and the through holes are detachably provided with locking bolts.

[0020] The plug-in rod and the telescopic rod can be inserted and stored for easy transportation; the connecting rod can realize fine-tuning of the connection distance to ensure that the support rod can tightly contact the enclosure unit and the support column, thereby playing a good supporting role; during installation, first screw the two ends of the connecting rod into the threaded cylinder seat and the plug-in rod respectively (at this time the telescopic rod is stored in the plug-in rod), then pull out the telescopic rod, dock the plug-in connector with the plug block, insert the pin into the through holes on the plug-in connector and the plug block, fix the two, and then fix the position of the telescopic rod on the plug-in rod, turn the connecting rod, and fine-tune it so that the support rod can tightly contact the enclosure unit and the support column.

[0021] Furthermore, the docking pieces and the supporting rods are arranged in pairs, symmetrically arranged on both sides of the support column; there are multiple groups of the docking pieces and the supporting rods arranged in pairs, which are evenly spaced vertically.

[0022] Furthermore, there are multiple supporting units, which are evenly spaced along the longitudinal direction.

[0023] Furthermore, the reinforcement units are provided at four angle positions where the longitudinal baffle and the transverse baffle are connected, and a plurality of the reinforcement units are evenly spaced vertically at each angle position.

[0024] Compared with the prior art, the deep foundation pit support structure described in the utility model has the following advantages:

[0025] (1) The deep foundation pit support structure described in the utility model has a reasonable structural design. The enclosure unit is used to enclose the soil of the pit wall. The support unit supports the enclosure unit in the horizontal direction. By setting a support column as a supporting base, the enclosure unit is supported by the support rod, so that the enclosure unit fits the pit wall better. In combination with the reinforcement unit, the support structure can be made more stable. In addition, all components are detachably connected, and disassembly, assembly and transportation are more convenient.

[0026] (2) The enclosure unit described in the utility model is formed by splicing multiple parts with buckles, which is conducive to adapting to the actual situation of the construction site. Combination splicing makes the enclosure unit more compatible with the foundation pit. At the same time, by setting a variety of parts with supporting and reinforcing functions, the overall stability is improved;

[0027] (3) The support rod structure described in the utility model is reasonably designed and easy to transport, assemble and disassemble. The connection distance can be fine-tuned through the connecting rod, ensuring that the support rod can tightly abut the enclosure unit and the support column, thereby playing a good supporting role. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the top view of the deep foundation pit support structure according to an embodiment of the utility model;

[0030] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at AA;

[0031] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at BB;

[0032] Figure 4 It is a schematic structural diagram of the support rod described in an embodiment of the utility model.

[0033] Description of reference numerals:

[0034] 1-enclosure unit, 2-support unit, 3-reinforcement unit, 4-longitudinal baffle, 5-transverse baffle, 6-transverse end plate, 7-transverse combined narrow plate, 8-strengthening rib, 9-support column, 10-jointing piece, 11-support rod, 12-base, 13-column, 14-insert block, 15-mounting plate, 16-threaded cylinder seat, 17-connecting rod, 18-plug rod, 19-telescopic rod, 20-plug connector, 21-pin, 22-perforation, 23-reinforcement beam, 24-mounting seat. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] like Figures 1 to 4 As shown, a deep foundation pit support structure includes a retaining unit 1, a support unit 2, and a reinforcement unit 3;

[0040] Among them, the enclosure unit 1 is a rectangular frame structure formed by connecting and enclosing vertically arranged longitudinal baffles 4 and transverse baffles 5; the joints of the longitudinal baffles 4 and the transverse baffles 5 are buckled by slots and fixed and locked by bolts and nuts; the longitudinal baffles 4 are spliced ​​in the longitudinal direction by multiple longitudinal combination plates, and the joints are buckled by slots; the transverse baffles 5 are spliced ​​in the transverse direction by multiple transverse combination plates, and the transverse combination plates include transverse end plates 6 connected to the longitudinal baffles 4 and multiple transverse combination narrow plates 7 located in the middle; the transverse end plates and the transverse combination narrow plates, and the transverse combination narrow plates and the transverse combination narrow plates are buckled by slots; the multiple transverse combination narrow plates 7 located in the middle are also provided with transversely arranged reinforcing ribs 8, and the two ends of the reinforcing ribs 8 are respectively fixed to the two transverse end plates 6 by bolts;

[0041] There are multiple support units 2, which are evenly spaced in the longitudinal direction; the support unit 2 includes a support column 9, a docking piece 10, and a support rod 11 installed in the area surrounded by the enclosure unit 1; the docking piece 10 and the support rod 11 are arranged in pairs, symmetrically arranged on both sides of the support column 9, and there are multiple groups of docking pieces 10 and support rods 11 arranged in pairs, which are evenly spaced in the vertical direction; the support column 9 includes a base 12, a column 13 vertically arranged on the base 12, and an insert 14 arranged on the column 13; the docking piece 10 includes a detachable mounting plate 15 fixed on the longitudinal baffle 4, and a threaded cylinder seat 16 fixed on the mounting plate 15; the support rod 11 includes a connecting rod 17, a plug rod 18 and a telescopic rod 19; the connecting rod Both ends of the rod 17 are provided with external threads with opposite thread directions, and one end of the connecting rod 17 is detachably connected to the threaded cylinder seat 16 through threads; the interior of the plug rod 18 is hollow, and one end thereof is provided with an internal thread adapted to the external thread of the connecting rod 17, and the other end of the connecting rod 17 is connected to one end of the plug rod 18 through threads; one end of the telescopic rod 19 is telescopically inserted into the cavity at the other end of the plug rod 18, and the other end of the telescopic rod 19 is fixed with a plug connector 20 adapted to the plug block 14, which is fixed by a latch 21 after the plug block 14 is buckled with the plug connector 20; both the telescopic rod 19 and the plug rod 18 are provided with a through hole 22 for fixing the position of the telescopic rod 19, and a detachable locking bolt is provided at the through hole 22;

[0042] The reinforcement unit 3 is installed at the angle position where the longitudinal baffle 4 and the transverse baffle 5 are connected. The reinforcement units 3 are set at the four angle positions, and each angle position has multiple reinforcement units 3 distributed at equal intervals in the vertical direction; the reinforcement unit 3 includes a reinforcement beam 23 and a mounting seat 24 for mounting the two ends of the reinforcement beam 23 on the adjacent longitudinal baffle 4 and transverse baffle 5.

[0043] The working principle of the deep foundation pit support structure described in the utility model is as follows:

[0044] Assemble the longitudinal baffle 4 and the transverse baffle 5 in the foundation pit to form the enclosure unit 1; install the support unit 2, fix the support column 9 at the designated position in the area enclosed by the enclosure unit 1, install the docking piece 10 on the corresponding longitudinal baffle 4, screw the two ends of the connecting rod 17 into the threaded cylinder seat 16 and the plug-in rod 18 respectively (at this time, the telescopic rod 19 is accommodated in the plug-in rod 18), then pull out the telescopic rod 18, dock the plug connector 20 with the plug block 14, insert the pin 21 into the through holes on the plug connector 20 and the plug block 14, complete the connection between the support rod 11 and the support column 9, and then fix the position of the telescopic rod 19 on the plug-in rod 18 to achieve the fixation between the telescopic rod 19 and the plug-in rod 18, twist the connecting rod 17, and fine-tune it so that the support rod 11 can tightly abut the longitudinal baffle 4 and the support column 9; install the reinforcement unit 3 at the four angles where the longitudinal baffle 4 and the transverse baffle 5 are connected to complete the assembly.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A deep foundation pit support structure, characterized in that: include: The enclosure unit is a rectangular frame structure formed by connecting and enclosing vertically arranged longitudinal baffles and transverse baffles; A support unit, the support unit comprising a support column installed in the area enclosed by the enclosure unit, a docking piece installed on the longitudinal baffle, and a support rod having one end detachably connected to the docking piece and the other end detachably connected to the support column; A reinforcement unit is installed at the angle between the longitudinal baffle and the transverse baffle, and comprises a reinforcement beam and mounting seats for mounting the two ends of the reinforcement beam on the adjacent longitudinal baffle and the transverse baffle.

2. The deep foundation pit support structure according to claim 1 is characterized in that: The joints of the longitudinal baffle and the transverse baffle are buckled through slots and fixed and locked by bolts and nuts.

3. The deep foundation pit support structure according to claim 1 is characterized in that: The longitudinal baffle is formed by splicing a plurality of longitudinal combination plates in the longitudinal direction, and the splicing parts are buckled through slots; the transverse baffle is formed by splicing a plurality of transverse combination plates in the transverse direction, and the splicing parts are buckled through slots.

4. The deep foundation pit support structure according to claim 3 is characterized in that: The transverse combined plate includes a transverse end plate connected to the longitudinal baffle and a plurality of transverse combined narrow plates located in the middle position; the transverse end plate and the transverse combined narrow plate, and the transverse combined narrow plates and the transverse combined narrow plates are all buckled through slots; the plurality of transverse combined narrow plates located in the middle position are also provided with transversely arranged reinforcing ribs, and the two ends of the reinforcing ribs are respectively fixed to the two transverse end plates.

5. The deep foundation pit supporting structure according to claim 1 is characterized in that: The support column includes a base, a column vertically arranged on the base, and an insert block arranged on the column; the docking part includes a mounting plate detachably fixed to the longitudinal baffle and a threaded cylinder seat fixed to the mounting plate; one end of the support rod is detachably connected to the threaded cylinder seat via a thread, and the other end of the support rod is provided with a plug connector adapted to the insert block, which is fixed by a pin after the insert block is buckled with the plug connector.

6. The deep foundation pit supporting structure according to claim 5 is characterized in that: The supporting rod comprises a connecting rod, a plug-in rod and a telescopic rod; both ends of the connecting rod are provided with external threads with opposite thread directions, and one end of the connecting rod is detachably connected to a threaded cylinder seat via threads; the interior of the plug-in rod is hollow, and one end thereof is provided with an internal thread adapted to the external thread of the connecting rod, and the other end of the connecting rod is connected to one end of the plug-in rod via threads; one end of the telescopic rod is telescopically inserted into the cavity at the other end of the plug-in rod, and the plug connector is fixed to the other end of the telescopic rod, and both the telescopic rod and the plug-in rod are provided with through holes for fixing the position of the telescopic rod, and the through holes are detachably provided with locking bolts.

7. The deep foundation pit supporting structure according to claim 5, characterized in that: The docking pieces and the supporting rods are arranged in pairs, symmetrically arranged on both sides of the support column; there are multiple groups of the docking pieces and the supporting rods arranged in pairs, which are evenly spaced vertically.

8. The deep foundation pit support structure according to claim 1, 5, 6 or 7, characterized in that: There are multiple supporting units, which are evenly distributed along the longitudinal direction.

9. The deep foundation pit supporting structure according to claim 1, characterized in that: The reinforcing units are arranged at four angle positions where the longitudinal baffle and the transverse baffle are connected, and a plurality of the reinforcing units are evenly spaced vertically at each angle position.

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