Support for construction of deep foundation pit in complex stratum in sensitive environment for shed modification project

Abstract

The utility model relates to a support for construction of a deep foundation pit in a complex stratum in a sensitive environment for shed modification engineering, which belongs to the technical field of supports for construction and comprises a support plate and four support cylinders, and support rods are fixed in the support cylinders through bolts. According to the support for construction of the deep foundation pit in the complex stratum in the sensitive environment for the shed change project, the soil layer above the supporting plate can be supported through the supporting plate, the supporting height of the supporting plate can be adjusted by twisting bolts on the opposite sides of the supporting cylinders on the left side and the right side, and the grounding area of the support for construction of the foundation pit can be increased again through four baffles; the four hand wheels are twisted to drive the four ground piles to rotate, move downwards and be inserted into the foundation of the foundation pit, the stability of the support for foundation pit construction fixed into the foundation of the foundation pit can be improved, and the supporting base can be fixed into the foundation of the foundation pit through the four mounting holes; and therefore, the stability of the bracket for construction fixed on the foundation pit foundation can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction supports, in particular to a support for deep foundation pit construction in a sensitive environment and complex strata for shantytown renovation projects. Background Art

[0002] In recent years, with the rapid development of urban construction, land resources have become increasingly precious, and various foundation pits have become deeper and larger, making construction much more difficult. Especially in some prosperous first-tier cities' shantytown renovation projects, it is often necessary to rebuild or expand high-rise buildings, which involves deep foundation pit construction. In cities with dense structures, there is always a deep foundation pit construction with a construction safety level of one, which is close to structures or subways. This type of foundation pit construction is extremely difficult due to the complex surrounding environment and the high requirements of the structures for settlement and deformation. Therefore, when constructing and excavating deep pits, it is often necessary to use deep foundation pit construction supports.

[0003] For example, Chinese patent CN210563544U discloses a support for deep foundation pit construction in complex strata in sensitive environments, including a hydraulic cylinder, a support plate fixedly provided on the upper end of the hydraulic cylinder, an extension plate movably sleeved inside the support plate, a plurality of sockets opened on the outer surface of the extension plate, a latch directly and movably interspersed between the support plate and the socket, a first contact fixedly provided on the middle part of the lower end of the extension plate, a connecting piece movably provided on the lower end of the latch through a thread, a mounting plate movably provided on the lower end of the connecting piece through a bearing, a second contact fixedly provided on the middle part of the upper end of the mounting plate, a buzzer fixedly provided on the middle part of the lower end of the mounting plate, a battery fixedly provided on one side of the buzzer at the lower end of the support plate, the first contact and the second contact are electrically connected to the battery and the buzzer respectively. The utility model has a good use effect, can be easily adjusted and carried, and can also alarm when the device is subjected to excessive pressure.

[0004] Although the above patent has a good use effect and is easy to adjust and carry, the bottom plates on the left and right sides of the patent are fixed to the foundation pit foundation only by bolts in the threaded openings, and the stability of the fixation is general, which reduces the practicality. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a support for the construction of deep foundation pits in sensitive environments and complex strata for shantytown renovation projects. The utility model has the advantages of improving the stability of the construction support fixed on the foundation pit, and solves the problem that the bottom plates on the left and right sides are fixed to the inside of the foundation pit only by bolts in the threaded openings, and the stability of the fixation is general, which reduces the practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a support for deep foundation pit construction in a sensitive environment and complex strata for shantytown renovation projects, comprising a support plate and four support tubes, wherein a support rod is fixed inside the support tube by bolts, and the four support rods are fixed at the four corners of the lower surface of the support plate, and a fixing mechanism is provided at the bottom end of the four support tubes, and a reinforcing mechanism is provided on the opposite side of the left and right support tubes, and the opposite side of the left and right support rods are hinged with a reinforcing rod through a hinge seat, and the bottom end of the reinforcing rod is hingedly connected to the lower surface of the support plate through the hinge seat;

[0007] The fixing mechanism includes a support base fixed to the bottom ends of four support tubes, baffles are fixed on the left and right sides of the front and back of the support base, connecting plates are fixed on the left and right sides of the front and back of the support base, the internal threads of the connecting plates are connected to ground piles, a hand wheel is fixed on the top of the ground pile, mounting blocks are fixed on the left and right sides of the front and back of the baffle, and mounting holes are opened on the upper surfaces of the mounting blocks.

[0008] Furthermore, the baffles on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal center axis of the support base.

[0009] Furthermore, an anti-slip sleeve is fixed to the outer side of the hand wheel, and the anti-slip sleeve is a rubber sleeve.

[0010] Furthermore, the reinforcing mechanism includes two threaded cylinders fixed on opposite sides of the left and right support cylinders, the interiors of the opposite sides of the left and right threaded cylinders are threadedly connected with threaded rods, the opposite sides of the left and right threaded rods are fixed with rotating rods, the opposite sides of the left and right rotating rods are rotatably connected with fixed rods through bearings, and a connecting assembly is provided on the right side of the fixed rod on the left.

[0011] Furthermore, the connecting assembly includes a supporting sliding cylinder fixed to the right side of the left fixed rod, a supporting sliding rod is fixed inside the supporting sliding cylinder by bolts, the right side of the supporting sliding rod is fixedly connected to the left side of the right fixed rod, and a connecting rod is fixed on the opposite side of the supporting cylinder on the front and rear sides.

[0012] Furthermore, the inner diameter of the supporting sliding cylinder is matched with the outer diameter of the supporting sliding rod.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The shantytown renovation project uses a support for deep foundation pit construction in a sensitive environment and complex strata. The soil layer above the support plate can be supported by the support plate. The support height of the support plate can be adjusted by twisting the bolts on the opposite sides of the left and right support tubes. The support base is fixed to the bottom of the four support tubes to increase the grounding area of ​​the support for the foundation pit construction, reducing the possibility of sinking into the soil when supporting. The grounding area of ​​the support for the foundation pit construction can be increased again through four baffles. By twisting four hand wheels and driving four ground piles to rotate and move downward and insert them into the inside of the foundation pit foundation, the stability of the support for the foundation pit construction fixed inside the foundation pit foundation can be improved. The support base can be fixed in the foundation pit foundation through four mounting holes, thereby improving the stability of the construction support fixed on the foundation pit foundation.

[0015] 2. The shantytown renovation project uses a support for deep foundation pit construction in a sensitive environment and complex strata. The stability of the overall structure of the support can be improved through four reinforcing rods. The stability of the four support tubes can be improved through the cooperation between four threaded tubes, four threaded rods, four rotating rods, four fixed rods, two supporting sliding tubes and two supporting sliding rods. The four threaded rods can be removed from the inside of the four threaded tubes by twisting the four rotating rods on the left and right sides. The overall length of the supporting sliding tube and the supporting sliding rod can be adjusted by twisting the bolts on the upper surface of the supporting sliding tube, so that the left and right threaded rods can be threadedly connected to the inside of the left and right threaded tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the fixing mechanism of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the baffle of the utility model;

[0019] Figure 4 It is a schematic diagram of the strengthening mechanism of the utility model.

[0020] In the figure: 1 support plate, 2 support cylinder, 3 support rod, 4 fixing mechanism, 401 support base, 402 baffle, 403 connecting piece, 404 ground pile, 405 handwheel, 406 mounting block, 407 mounting hole, 5 reinforcement mechanism, 501 threaded cylinder, 502 threaded rod, 503 rotating rod, 504 fixing rod, 505 support sliding cylinder, 506 support sliding rod, 507 connecting rod, 6 reinforcement rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 In this embodiment, a support for deep foundation pit construction in a sensitive environment and complex strata for shantytown renovation projects includes a support plate 1 and four support tubes 2, characterized in that: a support rod 3 is fixed inside the support tube 2 by bolts, and the four support rods 3 are fixed at the four corners of the lower surface of the support plate 1, and a fixing mechanism 4 is provided at the bottom end of the four support tubes 2. The fixing mechanism 4 improves the stability of the construction support fixed on the foundation of the foundation pit, and a reinforcing mechanism 5 is provided on the opposite side of the left and right support tubes 2. The reinforcing mechanism 5 improves the stability of the support of the four support tubes 2, and the opposite side of the left and right support rods 3 are hinged with a reinforcing rod 6 through a hinge seat, and the bottom end of the reinforcing rod 6 is hingedly connected to the lower surface of the support plate 1 through a hinge seat.

[0023] See also Figure 2-3 In order to improve the stability of the construction support fixed on the foundation pit foundation, in this embodiment, the fixing mechanism 4 includes a support base 401 fixed to the bottom end of the four support tubes 2, baffles 402 are fixed on the left and right sides of the front and back of the support base 401, and connecting pieces 403 are fixed on the left and right sides of the front and back of the support base 401. The soil layer above the support plate 1 can be supported by the support plate 1, and the support height of the support plate 1 can be adjusted by twisting the bolts on the opposite sides of the left and right support tubes 2. The support base 401 is fixed to the bottom end of the four support tubes 2 to increase the grounding area of ​​the support for foundation pit construction, and reduce the occurrence of sinking into the soil during support. The internal thread of the connecting piece 403 is connected to a ground pile 404, and a hand wheel 405 is fixed to the top of the ground pile 404. Mounting blocks 406 are fixed on the left and right sides of the front and back of the baffle 402, and mounting holes 407 are opened on the upper surface of the mounting block 406.

[0024] In this embodiment, the left and right side baffles 402 are symmetrically distributed on the left and right sides of the longitudinal center axis of the support base 401, and an anti-slip sleeve is fixed to the outer side of the hand wheel 405, and the anti-slip sleeve is a rubber sleeve.

[0025] It should be noted that the four baffles 402 can further increase the grounding area of ​​the foundation pit construction bracket, and by twisting the four hand wheels 405 and driving the four ground piles 404 to rotate inside the four connecting plates 403 and move downward and insert into the foundation pit foundation, the stability of the foundation pit construction bracket fixed inside the foundation pit foundation can be improved, and the support base 401 can be fixed in the foundation pit foundation through the four mounting holes 407, thereby improving the stability of the construction bracket fixed on the foundation pit foundation.

[0026] See also Figure 4 In order to improve the stability of the support of the four support tubes 2, in this embodiment, the strengthening mechanism 5 includes two threaded tubes 501 fixed on the opposite sides of the left and right support tubes 2, and the interiors of the opposite sides of the left and right threaded tubes 501 are threadedly connected with threaded rods 502, and the opposite sides of the left and right threaded rods 502 are fixed with rotating rods 503, and the opposite sides of the left and right rotating rods 503 are rotatably connected with fixed rods 504 through bearings, and a connecting component is provided on the right side of the left fixed rod 504.

[0027] In this embodiment, the connecting assembly includes a supporting sliding cylinder 505 fixed to the right side of the left fixed rod 504, and a supporting sliding rod 506 is fixed to the inside of the supporting sliding cylinder 505 by bolts. The stability of the overall structure of the bracket for foundation pit construction can be improved through four reinforcing rods 6. The stability of the support of the four supporting cylinders 2 can be improved through the mutual cooperation between the four threaded cylinders 501, the four threaded rods 502, the four rotating rods 503, the four fixed rods 504, the two supporting sliding cylinders 505 and the two supporting sliding rods 506. The right side of the supporting sliding rod 506 is fixedly connected to the left side of the right fixed rod 504, and a connecting rod 507 is fixed to the opposite side of the front and rear support cylinders 2. The inner diameter of the supporting sliding cylinder 505 is adapted to the outer diameter of the supporting sliding rod 506.

[0028] It should be noted that the four threaded rods 502 can be removed from the inside of the four threaded cylinders 501 by twisting the four rotating rods 503 on the left and right sides, and the overall length of the support sliding cylinder 505 and the support sliding rod 506 can be adjusted by twisting the bolts on the upper surface of the support sliding cylinder 505, so that the left and right side threaded rods 502 can be threadedly connected to the inside of the left and right side threaded cylinders 501, and the stability of the front and rear side support cylinders 2 can be improved by the connecting rods 507 on the left and right sides.

[0029] The working principle is:

[0030] (1) The soil layer above the support plate 1 can be supported by the support plate 1, and the support height of the support plate 1 can be adjusted by twisting the bolts on the opposite sides of the left and right support tubes 2. The support base 401 fixed to the bottom ends of the four support tubes 2 can increase the grounding area of ​​the foundation pit construction bracket, thereby reducing the possibility of sinking into the soil during support. The four baffles 402 can further increase the grounding area of ​​the foundation pit construction bracket. By twisting the four hand wheels 405 and driving the four ground piles 404 to rotate inside the four connecting plates 403 and move downward and insert into the foundation pit foundation, the stability of the foundation pit construction bracket fixed inside the foundation pit foundation can be improved. The support base 401 can be fixed to the foundation pit foundation through the four mounting holes 407, thereby improving the stability of the construction bracket fixed on the foundation pit foundation.

[0031] (2) The stability of the overall structure of the support for foundation pit construction can be improved by using four reinforcing rods 6. The stability of the support of the four support tubes 2 can be improved by the mutual cooperation among the four threaded tubes 501, the four threaded rods 502, the four rotating rods 503, the four fixed rods 504, the two supporting sliding tubes 505 and the two supporting sliding rods 506. The four threaded rods 502 can be removed from the inside of the four threaded tubes 501 by twisting the four rotating rods 503 on the left and right sides. The overall length of the supporting sliding tube 505 and the supporting sliding rod 506 can be adjusted by twisting the bolts on the upper surface of the supporting sliding tube 505, so that the left and right side threaded rods 502 can be threadedly connected to the inside of the left and right side threaded tubes 501. The stability of the front and rear side supporting tubes 2 can be improved by using the left and right side connecting rods 507.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A support for deep foundation pit construction in a sensitive environment and complex strata for shantytown renovation projects, comprising a support plate (1) and four support tubes (2), characterized in that: A support rod (3) is fixed inside the support tube (2) by bolts, and the four support rods (3) are fixed at the four corners of the lower surface of the support plate (1). The bottom ends of the four support tubes (2) are provided with a fixing mechanism (4), and the opposite sides of the left and right support tubes (2) are provided with a reinforcing mechanism (5). The opposite sides of the left and right support rods (3) are hinged with a reinforcing rod (6) through a hinge seat, and the bottom end of the reinforcing rod (6) is hingedly connected to the lower surface of the support plate (1) through a hinge seat; The fixing mechanism (4) comprises a support base (401) fixed to the bottom ends of the four support tubes (2); baffles (402) are fixed to the left and right sides of the front and back of the support base (401); connecting plates (403) are fixed to the left and right sides of the front and back of the support base (401); the connecting plates (403) are internally threadedly connected to ground piles (404); a hand wheel (405) is fixed to the top of the ground pile (404); mounting blocks (406) are fixed to the left and right sides of the front and back of the baffle (402); and mounting holes (407) are provided on the upper surfaces of the mounting blocks (406).

2. A support for deep foundation pit construction in a sensitive environment and complex strata for shantytown renovation projects according to claim 1, characterized in that: The baffles (402) on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal center axis of the support base (401).

3. The support for deep foundation pit construction in sensitive environment and complex strata for shantytown renovation project according to claim 1 is characterized by: An anti-slip sleeve is fixed to the outer side of the hand wheel (405), and the anti-slip sleeve is a rubber sleeve.

4. The support for deep foundation pit construction in sensitive environment and complex strata for shantytown renovation project according to claim 1 is characterized by: The reinforcing mechanism (5) comprises two threaded cylinders (501) fixed on opposite sides of the left and right support cylinders (2); the interiors of the opposite sides of the threaded cylinders (501) on the left and right sides are both threadedly connected with threaded rods (502); the opposite sides of the threaded rods (502) on the left and right sides are both fixed with rotating rods (503); the opposite sides of the rotating rods (503) on the left and right sides are both rotatably connected with fixed rods (504) via bearings; and a connecting component is provided on the right side of the fixed rod (504) on the left side.

5. A support for deep foundation pit construction in a sensitive environment and complex strata for shantytown renovation projects according to claim 4, characterized in that: The connecting assembly comprises a supporting sliding cylinder (505) fixed to the right side of the left fixed rod (504), a supporting sliding rod (506) being fixed inside the supporting sliding cylinder (505) by means of bolts, the right side of the supporting sliding rod (506) being fixedly connected to the left side of the right fixed rod (504), and a connecting rod (507) being fixed to the opposite side of the supporting cylinder (2) at the front and rear sides.

6. A support for deep foundation pit construction in a sensitive environment and complex strata for shantytown renovation projects according to claim 5, characterized in that: The inner diameter of the supporting sliding cylinder (505) is matched with the outer diameter of the supporting sliding rod (506).

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