Combined supporting structure for deep foundation pit under high slope condition

Abstract

The utility model relates to a deep foundation pit combined supporting structure under the high slope condition, and relates to the field of deep foundation pit supporting structures. The device comprises supporting frames, each supporting frame comprises a triangular middle frame and supporting outer frames, the supporting outer frames are symmetrically installed on the two sides of the triangular middle frame, the supporting outer frames are fixedly connected with the triangular middle frame, and a multi-direction connecting set is arranged between the supporting frames and comprises an angle frame and an outer arm rod. And one ends of the outer arm rods are mounted at the two ends of the angle frame in a sleeving manner. The supporting frame is designed into a structure in which the triangular middle frame and the supporting outer frame are matched, so that a foundation pit is stably supported by using the stability of a triangle when the supporting frame is easy to use, and the multi-directional connecting group is used as a supporting structure between the supporting frames; it is guaranteed that an operator can select to install a proper number of multi-direction connecting sets at different point positions of the supporting frame according to needs in the actual installation process, and then different supporting requirements can be met.

Description

Technical Field

[0001] This application relates to the technical field of deep foundation pit support structures, and in particular to a combined support structure for deep foundation pits under high slope conditions. Background Technology

[0002] A deep foundation pit refers to an excavation depth exceeding 5 meters, or an engineering project with particularly complex geological conditions, surrounding environment, and underground pipelines, even if the depth does not exceed 5 meters. To ensure the safety of the interior of the deep foundation pit and the stability of its sidewalls, a foundation pit support structure is adopted. Foundation pit support is a set of measures to support, reinforce, and protect the sidewalls and surrounding environment of the foundation pit in order to ensure the safety of underground structure construction and the surrounding environment.

[0003] Chinese patent CN219930983U discloses a combined support structure for deep foundation pits under high slope conditions. This structure acts on three sides of the deep foundation pit under high slope conditions and includes: steel pipe piles, grouted soil nails, reinforced concrete retaining walls, and reinforced concrete internal supports. The steel pipe piles are installed in the soil of the outer high slope of the deep foundation pit side, the grouted soil nails are driven into the soil of the outer high slope of the deep foundation pit side, the reinforced concrete retaining walls are installed on the inner surface of the deep foundation pit side, and the reinforced concrete internal supports are installed between the three reinforced concrete retaining walls. This utility model adopts a combined support form of steel pipe piles, grouted soil nails, reinforced concrete retaining walls, and reinforced concrete internal supports.

[0004] Regarding the aforementioned technologies, the inventors have discovered that most existing foundation pit support structures are connected and fixed using steel frame welding. This installation method requires prior measurement and processing based on the foundation pit dimensions, making installation very inconvenient. Furthermore, when encountering installation locations such as corners, not only is measurement difficult, but installation is also quite cumbersome. Utility Model Content

[0005] To achieve flexible and stable installation in the foundation pit, this application provides a combined support structure for deep foundation pits under high slope conditions.

[0006] This application provides a composite support structure for deep foundation pits under high slope conditions, employing the following technical solution:

[0007] A combined support structure for deep foundation pits under high slope conditions includes a support frame. The support frame includes a triangular central frame and a supporting outer frame. The supporting outer frame is symmetrically installed on both sides of the triangular central frame and is fixedly connected to the triangular central frame. A multi-directional connection group is provided between the support frames. The multi-directional connection group includes an angle frame and an outer boom. One end of the outer boom is sleeved and installed on both ends of the angle frame, and a connector that cooperates with the angle frame is installed on the outer boom. The other end of the outer boom is fixedly connected to the support frame.

[0008] By adopting the above technical solution, the support frame is designed as a structure combining a triangular central frame and a supporting outer frame. When in use, the triangular central frame serves as the main support, and the supporting outer frame is fixedly installed at both ends of the central frame. This allows the supporting outer frame to extend the overall support area of ​​the support frame. Furthermore, the triangular central frame and the supporting outer frame form several triangular structures, ensuring stability during the overall support process. Simultaneously, the support frames are interconnected through multi-directional connection groups, allowing for flexible connection between the support frames at both ends to support the foundation pit. The multi-directional connection group is designed as a structure combining an angle frame and an outer boom. When in use, two outer booms are installed on the angle frame. After the two outer booms are fitted onto both ends of the angle frame, they can be slidably adjusted to change the overall support length of the multi-directional connection group. The angle frame can also be angled, allowing the two outer booms to support at a certain angle. This allows for the support of two support frames at different angles and distances, ensuring greater flexibility in use.

[0009] Optionally, the triangular frame includes a horizontal bar and two diagonal bars, the two diagonal bars are symmetrically installed at both ends of the horizontal bar, and the lower ends of the diagonal bars are fixedly connected to the horizontal bar, and the heads of the two diagonal bars are fixedly connected.

[0010] By adopting the above technical solution, the triangular frame is designed as a structure that combines a horizontal bar and two diagonal bars. When easy to use, the horizontal bar and the two diagonal bars can be connected end to end to form a triangular structure, which can be used for support when in use.

[0011] Optionally, the supporting frame includes short struts, a middle strut, and a long strut. The short struts are inclined and fixed at both ends of the horizontal strut. The long struts are connected between the diagonal strut and the short struts, and both ends of the long struts are fixedly connected to the diagonal strut and the short strut, respectively. One end of the middle strut is fixed to the head of the short strut, and the other end of the middle strut is fixed to the middle of the long strut.

[0012] By adopting the above technical solution, the supporting frame is designed with a structure that combines short struts, middle struts, and long struts. When in use, the short struts and long struts can be combined with the diagonal braces of the triangular middle frame to form a new triangle. Furthermore, the strength can be further increased by installing a middle strut in this triangle, thereby achieving the goal of increasing the overall support strength of the support frame through the supporting frame.

[0013] Optionally, the angle frame includes a first connecting frame and a second connecting frame, the first connecting frame is installed at the head of the second connecting frame, one end of the first connecting frame is installed at the head of the second connecting frame, and the first connecting frame and the second connecting frame are rotatably connected.

[0014] By adopting the above technical solution, the angle frame is designed as a structure in which the first connecting frame and the second connecting frame cooperate. When easy to use, the outer boom can be installed by fitting the first connecting frame and the second connecting frame together. After the two outer booms are respectively fitted onto the first connecting frame and the second connecting frame, the support angle of the two outer booms can be changed by adjusting the angle between the first connecting frame and the second connecting frame, thus making it easy to adjust and use flexibly.

[0015] Optionally, the first connecting frame includes an inner rod and a disc head, wherein the disc head is installed at one end of the inner rod and is fixedly connected to the inner rod.

[0016] By adopting the above technical solution, the first connecting frame is designed to cooperate with the inner rod of the frame and the disc head. When easy to use, the inner rod of the frame can be connected to the second connecting frame through the disc head. At the same time, the setting of the inner rod of the frame facilitates the installation and use of the outer arm.

[0017] Optionally, the second connecting frame includes an inner rod two and a connecting disc shell for mounting the disc head. The connecting disc shell is fixedly installed at the head of the inner rod two, and a central insert shaft is also fixedly installed in the connecting disc shell.

[0018] By adopting the above technical solution, the second connecting frame is designed as a structure in which the inner rod of the frame and the connecting plate shell cooperate. When it is easy to use, the inner rod of the frame can be rotated and installed on the disc head through the connecting plate shell, and the two are connected to each other through the central insert shaft. In this way, the two can be rotated to adjust the angle of use when in use.

[0019] Optionally, the disc head is provided with a plurality of connecting through holes evenly distributed along the circumference, the upper end face of the connecting disc shell is provided with mating insertion holes corresponding to the connecting through holes, and positioning holes are provided on both the first inner rod of the frame and the second inner rod of the frame.

[0020] By adopting the above technical solution, several connecting through holes are evenly opened along the circumference of the disc head, and a matching insertion hole corresponding to the connecting through holes is opened on the upper end face of the connecting disc shell. In this way, after the disc head is adjusted at the angle in the connecting disc shell, it can be locked to each other by bolts passing through the connecting through holes and the matching insertion holes. Furthermore, by opening positioning holes on the inner rod one and inner rod two of the frame, it is convenient to lock the outer arm rod on the inner rod of the frame by bolts.

[0021] Optionally, the outer arm includes an outer frame rod, a clamping frame, and a locking cover plate. The outer frame rod has a mating hole corresponding to the positioning hole. The clamping frame is fixedly installed at one end of the outer frame rod. The head of the locking cover plate is rotatably installed on the outer frame rod, and the other end of the locking cover plate is fixedly connected to the outer frame rod by bolts.

[0022] By adopting the above technical solution, the outer boom is designed as a structure in which the outer boom, clamping frame, and locking cover plate cooperate. When easy to use, the outer boom can be sleeved on the inner boom one or inner boom two of the frame. At the same time, by fixing the clamping frame to one end of the outer boom, the outer boom can be clamped on the support frame when it cooperates with the support frame. Then, the locking cover plate is used to clamp and fix the outer boom. It has the advantages of being convenient and easy to disassemble.

[0023] In summary, this application includes at least one of the following beneficial technical effects: By designing the support frame as a structure combining a triangular central frame and a supporting outer frame, this application utilizes the stability of a triangle to provide stable support for the foundation pit. The use of multi-directional connection groups as the supporting structure between the support frames ensures that operators can select the appropriate number of multi-directional connection groups to install at different points on the support frame during actual installation, thereby meeting different support requirements. Furthermore, the multi-directional connection groups are designed as a structure combining an angle frame and an outer boom, allowing for flexible adjustment of the support length and angle. This enables support not only for parallel support frames but also for non-parallel support frames, making it highly flexible in use. Attached Figure Description

[0024] Figure 1 This is a perspective view of the overall structure in the embodiments of this application.

[0025] Figure 2 yes Figure 1 Side view of the device shown.

[0026] Figure 3 This is a perspective view of the angle frame in the embodiment of this application.

[0027] Figure 4 This is a perspective view of the first connecting frame in an embodiment of this application.

[0028] Figure 5 This is a perspective view of the outer arm in an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Support frame; 11. Triangular central frame; 111. Horizontal bar; 112. Diagonal bar; 12. Support outer frame; 121. Short strut; 122. Central bar; 123. Long strut; 2. Multi-directional connection group; 21. Angle frame; 22. Outer arm bar; 221. Outer frame bar; 222. Clamping frame; 223. Locking cover plate; 224. Mating hole; 23. First connecting frame; 231. Inner rod of frame one; 232. Disc head; 233. Connecting through hole; 234. Mating insertion hole; 24. Second connecting frame; 241. Inner rod of frame two; 242. Connecting disc shell; 243. Central insertion shaft; 244. Positioning hole; 3. Connecting piece. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a combined support structure for deep foundation pits under high slope conditions. (Refer to...) Figure 1 , Figure 2 and Figure 3As shown, a combined support structure for deep foundation pits under high slope conditions includes a support frame 1. The support frame 1 includes a triangular central frame 11 and a supporting outer frame 12. The supporting outer frame 12 is symmetrically installed on both sides of the triangular central frame 11 and is fixedly connected to the triangular central frame 11. A multi-directional connection group 2 is provided between the support frames 1. The multi-directional connection group 2 includes an angle frame 21 and an outer boom 22. One end of the outer boom 22 is sleeved and installed on both ends of the angle frame 21, and a connector 3 that cooperates with the angle frame 21 is installed on the outer boom 22. The connector 3 can be connected and fixed by bolts. The other end of the outer boom 22 is fixedly connected to the support frame 1. By designing the support frame 1 as a structure that combines a triangular central frame 11 and a supporting outer frame 12, the triangular central frame 11 can serve as the main support when in use. The supporting outer frame 12 is then fixedly installed at both ends of the triangular central frame 11, facilitating the extension of the overall support area of ​​the support frame 1. Furthermore, the triangular central frame 11 and the supporting outer frame 12 form several triangular structures, ensuring stability during the overall support process. Simultaneously, the support frames 1 are interconnected via multi-directional connection groups 2, allowing for convenient support at both ends of the support frame 1 during use, ensuring flexible connection between the support frames 1. The connection allows for the support of the foundation pit. By designing the multi-directional connection group 2 as a structure that combines an angle frame 21 and an outer boom 22, it is easy to use. Two outer booms 22 can be installed through the angle frame 21. After the two outer booms 22 are fitted onto the two ends of the angle frame 21, they can be slidably adjusted to change the overall support length of the multi-directional connection group 2. At the same time, the angle frame 21 can also be angled, so that the two outer booms 22 can be supported at a certain angle. In this way, two support frames 1 at different angles and distances can be supported, ensuring greater flexibility in use.

[0032] Reference Figure 1 and Figure 2As shown, the triangular frame 11 includes a horizontal bar 111 and two diagonal bars 112. The two diagonal bars 112 are symmetrically installed at both ends of the horizontal bar 111, and the lower ends of the diagonal bars 112 are fixedly connected to the horizontal bar 111, while the upper ends of the two diagonal bars 112 are fixedly connected. By designing the triangular frame 11 as a structure in which the horizontal bar 111 and the two diagonal bars 112 cooperate, it can be used easily by connecting the horizontal bar 111 and the two diagonal bars 112 end to end to form a triangular structure, thus providing support for use. The supporting frame 12 includes short support rods 121, a middle rod 122, and a long support rod 123. The short support rod 121 is inclined and fixed to both ends of the horizontal rod 111. The long support rod 123 connects the diagonal rod 112 and the short support rod 121, with both ends of the long support rod 123 fixedly connected to the diagonal rod 112 and the short support rod 121, respectively. One end of the middle rod 122 is fixed to the head of the short support rod 121, and the other end is fixed to the middle of the long support rod 123. By designing the supporting frame 12 with a structure that combines short support rods 121, middle rod 122, and long support rod 123, a new triangle can be formed by combining the short support rods 121 and long support rod 123 with the diagonal rod 112 of the triangular frame 11. Furthermore, the strength is increased by installing a middle rod 122 within this triangle, thereby achieving the goal of increasing the overall support strength of the support frame 1 through the supporting frame 12.

[0033] Reference Figure 3 and Figure 4As shown, the angle frame 21 includes a first connecting frame 23 and a second connecting frame 24. The first connecting frame 23 is installed at the head of the second connecting frame 24, and one end of the first connecting frame 23 is installed at the head of the second connecting frame 24. The first connecting frame 23 and the second connecting frame 24 are rotatably connected. By designing the angle frame 21 into a structure in which the first connecting frame 23 and the second connecting frame 24 cooperate, the outer arm rod 22 can be installed by fitting the first connecting frame 23 and the second connecting frame 24 together. After the two outer arm rods 22 are respectively fitted onto the first connecting frame 23 and the second connecting frame 24, the support angle of the two outer arm rods 22 can be changed by adjusting the angle between the first connecting frame 23 and the second connecting frame 24, thus making it easy and flexible to adjust and use. The first connecting frame 23 includes an inner rod 231 and a disc head 232. The disc head 232 is installed at one end of the inner rod 231 and is fixedly connected to the inner rod 231. By designing the first connecting frame 23 as a structure in which the inner rod 231 of the frame and the disc head 232 cooperate, the inner rod 231 of the frame can be connected to the second connecting frame 24 through the disc head 232 when it is easy to use. At the same time, the setting of the inner rod 231 of the frame facilitates the installation and use of the outer arm rod 22. The second connecting frame 24 includes the inner rod 241 of the frame and the connecting disc shell 242 for mounting the disc head 232. The connecting disc shell 242 is fixedly installed on the head of the inner rod 241 of the frame, and a central insert shaft 243 is also fixedly installed in the connecting disc shell 242. By designing the second connecting frame 24 into a structure in which the inner rod 241 of the frame and the connecting disc shell 242 cooperate, the inner rod 241 of the frame can be rotatably mounted on the disc head 232 through the connecting disc shell 242 when it is easy to use, and the two are connected to each other through the central insert shaft 243. In this way, it can be ensured that the two can rotate to adjust the angle of use. The disc head 232 is evenly provided with several connecting through holes 233 along the circumference. The upper end face of the connecting disc shell 242 is provided with matching insert holes 234 corresponding to the connecting through holes 233. Positioning holes 244 are provided on both the inner rod 231 and the inner rod 241 of the frame. By evenly opening several connecting through holes 233 along the circumference of the disc head 232, and providing corresponding mating insertion holes 234 on the upper end face of the connecting disc shell 242, the disc head 232 can be locked together with bolts through the connecting through holes 233 and mating insertion holes 234 after the angle of the disc head 232 in the connecting disc shell 242 is adjusted. Furthermore, by opening positioning holes 244 on the inner rod 1 231 and inner rod 241 of the frame, the outer arm rod 22 can be locked with bolts after being fitted onto the inner rod of the frame.

[0034] Reference Figure 1 and Figure 5As shown, the outer arm 22 includes a frame outer arm 221, a clamping frame 222, and a locking cover plate 223. The frame outer arm 221 has a mating hole 224 corresponding to the positioning hole 244. The clamping frame 222 is fixedly installed at one end of the frame outer arm 221. The head of the locking cover plate 223 is rotatably installed on the frame outer arm 221, and the other end of the locking cover plate 223 is fixedly connected to the frame outer arm 221 by bolts. By designing the outer boom 22 as a structure in which the frame outer boom 221, clamping frame 222 and locking cover 223 cooperate, it can be used by fitting the frame outer boom 221 onto the frame inner boom 231 or the frame inner boom 241. At the same time, by fixing the clamping frame 222 to one end of the frame outer boom 221, the outer boom 22 can be clamped onto the support frame 1 when it cooperates with the support frame 1. Then, the locking cover 223 is used to clamp and fix the outer boom 22, which has the advantages of being convenient and easy to disassemble.

[0035] The implementation principle of a combined support structure for deep foundation pits under high slope conditions in this application embodiment is as follows: During actual installation, the length and angle of the multi-directional connection group 2 are adjusted by the distance and angle between the two support frames 1. In use, the locking cover plate 223 at one end of the multi-directional connection group 2 is first flipped open, and then clamped onto the support frame 1 by the clamping frame 222. After flipping the locking cover plate 223 down, the locking cover plate 223 and the clamping frame 222 are locked together by bolts. This ensures that one end of the multi-directional connection group 2 is fixedly connected to the support frame 1. Then, the length is changed by sliding and adjusting the position of the outer boom 22 on the angle frame 21. After adjusting the length, the outer boom 22 and the angle frame 21 are locked together by bolts. Finally, the clamping frame 222 at the other end of the multi-directional connection group 2 is fixed onto the support frame 1 by adjusting the angle between the first connecting frame 23 and the second connecting frame 24. This ensures that the multi-directional connection group 2 provides stable support for the two sets of support frames 1.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A combined support structure for deep foundation pits under high slope conditions, comprising a support frame (1), characterized in that: The support frame (1) includes a triangular middle frame (11) and a supporting outer frame (12). The supporting outer frame (12) is symmetrically installed on both sides of the triangular middle frame (11) and is fixedly connected to the triangular middle frame (11). A multi-directional connection group (2) is provided between the support frames (1). The multi-directional connection group (2) includes an angle frame (21) and an outer arm (22). One end of the outer arm (22) is sleeved and installed on both ends of the angle frame (21), and a connector (3) that cooperates with the angle frame (21) is installed on the outer arm (22). The other end of the outer arm (22) is fixedly connected to the support frame (1).

2. The combined support structure for deep foundation pits under high slope conditions according to claim 1, characterized in that: The triangular frame (11) includes a horizontal rod (111) and two diagonal rods (112). The two diagonal rods (112) are symmetrically installed at both ends of the horizontal rod (111), and the lower end of the diagonal rods (112) is fixedly connected to the horizontal rod (111). The heads of the two diagonal rods (112) are fixedly connected.

3. The combined support structure for deep foundation pits under high slope conditions according to claim 2, characterized in that: The supporting frame (12) includes a short support rod (121), a middle rod (122) and a long support rod (123). The short support rod (121) is inclined and fixed at both ends of the horizontal rod (111). The long support rod (123) is connected between the diagonal rod (112) and the short support rod (121), and both ends of the long support rod (123) are fixedly connected to the diagonal rod (112) and the short support rod (121) respectively. One end of the middle rod (122) is fixed to the head of the short support rod (121), and the other end of the middle rod (122) is fixed to the middle of the long support rod (123).

4. The combined support structure for deep foundation pits under high slope conditions according to claim 3, characterized in that: The angle frame (21) includes a first connecting frame (23) and a second connecting frame (24). The first connecting frame (23) is installed at the head of the second connecting frame (24), and one end of the first connecting frame (23) is installed at the head of the second connecting frame (24). The first connecting frame (23) and the second connecting frame (24) are rotatably connected.

5. A combined support structure for deep foundation pits under high slope conditions according to claim 4, characterized in that: The first connecting frame (23) includes an inner rod (231) and a disc head (232). The disc head (232) is installed at one end of the inner rod (231) and is fixedly connected to the inner rod (231).

6. A combined support structure for deep foundation pits under high slope conditions according to claim 5, characterized in that: The second connecting frame (24) includes a frame inner rod two (241) and a connecting plate shell (242) for mounting the disc head (232). The connecting plate shell (242) is fixedly installed on the head of the frame inner rod two (241), and a central insert shaft (243) is also fixedly installed in the connecting plate shell (242).

7. A combined support structure for deep foundation pits under high slope conditions according to claim 6, characterized in that: The disc head (232) is provided with a number of connecting through holes (233) evenly along the circumference. The upper end face of the connecting disc shell (242) is provided with mating insertion holes (234) that correspond one-to-one with the connecting through holes (233). The first inner rod (231) and the second inner rod (241) of the frame are both provided with positioning holes (244).

8. A combined support structure for deep foundation pits under high slope conditions according to claim 7, characterized in that: The outer arm (22) includes a frame outer arm (221), a clamping frame (222) and a locking cover plate (223). The frame outer arm (221) has a mating hole (224) corresponding to the positioning hole (244). The clamping frame (222) is fixedly installed at one end of the frame outer arm (221). The head of the locking cover plate (223) is rotatably installed on the frame outer arm (221), and the other end of the locking cover plate (223) is fixedly connected to the frame outer arm (221) by bolts.

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