Soft soil deep foundation pit reinforced concrete support structure

Abstract

The application relates to the technical field, in particular to a soft soil deep foundation pit reinforced concrete support structure which comprises a support rod, a support plate, a fixing rod and a drill bit arranged on the fixing rod, further comprises an inductive plate arranged on the fixing rod and used for controlling the fixing rod to be recovered when the inductive plate is uplifted on the pit bottom; and a buffer mechanism arranged on the fixing rod and used for controlling the fixing rod to be retracted when the inductive plate is pushed by the uplifted pit bottom soil. The soft soil deep foundation pit reinforced concrete support structure is different from the prior art, and the buffer assembly has the advantage that the fixing rod can be controlled to be retracted when the pit bottom is uplifted. When the pit bottom is uplifted, the support structure will be subjected to additional stress. By controlling the retraction of the fixing rod, the response of the support structure to the uplift of the pit bottom can be adjusted, so that stress concentration can be relieved to a certain extent, and the stress borne by the support structure can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, in particular to a soft soil deep foundation pit reinforced concrete support structure. BACKGROUND

[0002] The reinforced concrete support structure for deep foundation pit refers to an important support measure used in deep foundation pit engineering to maintain the stability of the foundation pit and control the deformation of the surrounding stratum. This support structure can effectively withstand the lateral soil pressure and water pressure generated during the excavation of the foundation pit, prevent the collapse of the foundation pit, reduce the impact of construction on the surrounding environment, and ensure construction safety and engineering quality. Specifically, the reinforced concrete support structure for deep foundation pit can be designed according to different engineering requirements and geological conditions, including the layout, size, shape, and reinforcement of the support structure. During the excavation of the soft soil foundation pit, the soil body at the bottom of the pit is prone to rebound upward due to stress release, causing the pit bottom to heave. The heaving of the pit bottom will result in upward force on the bottom of the support structure, which will be transmitted to the support structure, causing the support structure to bear greater internal force and be more prone to deformation and damage, thereby affecting the safety of workers working at the bottom of the pit. Therefore, we propose a soft soil deep foundation pit reinforced concrete support structure. SUMMARY

[0003] One of the technical problems to be solved by the present application is that during the excavation of the soft soil foundation pit, the soil body at the bottom of the pit is prone to rebound upward due to stress release, causing the pit bottom to heave. The heaving of the pit bottom will result in upward force on the bottom of the support structure, which will be transmitted to the support structure, causing the support structure to bear greater internal force and be more prone to deformation and damage, thereby affecting the safety of workers working at the bottom of the pit.

[0004] To solve the above technical problems, the present application provides a soft soil deep foundation pit reinforced concrete support structure, which comprises a support rod, a support plate, a fixed rod, and a drill bit provided on the fixed rod. It also comprises an induction plate provided on the fixed rod to control the recovery of the fixed rod when the pit bottom heaves. A buffer mechanism is provided on the fixed rod to control the retraction of the fixed rod when the induction plate is pushed by the heaving of the pit bottom soil. A control assembly is provided on the buffer mechanism to control the movement of the support rod and adjust the support center of gravity of the support rod when the fixed rod retracts.

[0005] In some embodiments, the buffer mechanism comprises a contraction member provided on the fixed rod to control the retraction of the fixed rod. A trigger member is provided on the fixed rod to determine the retraction timing of the fixed rod. A power member is provided on the fixed rod to provide power for the work of the contraction member. An adjustment member is provided on the fixed rod to adjust the position of the trigger member on the fixed rod.

[0006] In some embodiments, the retracting member comprises a connecting pipe slidingly arranged on a fixed rod, one end of the connecting pipe is provided with a connecting rod, a retracting screw rod is rotatably arranged on the connecting rod, the retracting screw rod penetrates through the fixed rod and is threadedly connected with the fixed rod.

[0007] In some embodiments, the trigger member comprises a sliding plate slidingly arranged on a fixed rod, a plurality of multi-stage telescopic rods are arranged on the sliding plate, the multi-stage telescopic rods are connected with an induction plate, a telescopic spring is sleeved on the multi-stage telescopic rods, a trigger rod is arranged on the induction plate, the trigger rod penetrates through the sliding plate and is slidingly connected with the sliding plate, a plurality of tooth grooves are formed in the trigger rod.

[0008] In some embodiments, a power gear one is arranged on the retracting screw rod, a power shaft is rotatably arranged on the side wall of the connecting pipe, a power gear two which engages with the power gear one is arranged at one end of the power shaft in the connecting pipe, a transmission gear is arranged at one end of the power shaft away from the power gear two, the transmission gear engages with the tooth grooves on the trigger rod.

[0009] In some embodiments, the adjusting member comprises adjusting grooves arranged on both sides of the fixed rod, a sliding block is slidingly arranged in the adjusting groove, the sliding block is connected with the sliding plate, an extrusion groove is formed in the sliding block, a plurality of extrusion blocks are arranged in the extrusion groove, a rotating rod is rotatably arranged on the sliding plate, an extrusion screw rod is arranged in the rotating rod, the extrusion screw rod is threadedly connected with the rotating rod, the extrusion screw rod penetrates through the extrusion groove and is slidingly connected with the extrusion groove, a power groove is formed in the sliding plate, the rotating rod penetrates through the power groove, a synchronous shaft is rotatably arranged in the power groove, synchronous pulleys are arranged at the positions of the synchronous shaft and the rotating rod in the power groove, and a synchronous belt is arranged on the synchronous pulleys.

[0010] In some embodiments, the regulating assembly comprises a moving member arranged on the connecting rod, the moving member controls the movement of the supporting rod, and a driving member is arranged on the connecting rod to provide power for the movement of the moving member.

[0011] In some embodiments, the moving member comprises a moving groove formed in the connecting rod, a guide block is slidingly arranged in the moving groove, the guide block is connected with the supporting rod, an expansion plate is arranged on the supporting rod, a guide block is arranged on the expansion plate, and a guide groove which is slidingly connected with the guide block is formed in the supporting plate.

[0012] In some embodiments, the driving member comprises a driving shaft arranged on the connecting pipe, a driving gear I is arranged on the driving shaft and engages with the power gear, a driving gear II is arranged on the driving shaft away from the driving gear I, a positioning plate is arranged on the connecting rod, a transmission screw rod is arranged on the positioning plate and rotates, a transmission gear is arranged on the transmission screw rod and engages with the driving gear II, and the transmission screw rod penetrates the moving block and is threadedly connected with the moving block.

[0013] In some embodiments, a scale mark is arranged on the fixed rod.

[0014] The soft soil deep foundation pit reinforced concrete support structure has at least the following beneficial effects: in use, the buffer assembly is arranged, which can control the retraction of the fixed rod when the pit bottom rises, the support structure will be subjected to additional stress when the pit bottom rises, the response of the support structure to the pit bottom rise can be adjusted by controlling the retraction of the fixed rod, thereby relieving stress concentration to a certain extent and reducing the stress on the support structure, meanwhile, the pushing force generated by the soil layer rise can be converted into the power of the fixed rod retraction, thereby reducing the reverse pushing force on the fixed rod due to the pit bottom rise, which helps to prolong the service life of the support rod and reduce the safety risk caused by the damage of the support rod, the regulating assembly is arranged, which can raise the support point of the support rod after the pit bottom rises and the fixed rod retracts, with the upward movement of the support point, the support structure can better resist the upward deformation caused by the pit bottom rise, thereby reducing the overall deformation of the support structure, the upward movement of the support point is equivalent to adding a new constraint point in the support structure, which helps to enhance the overall stiffness of the support structure and make it more resistant to external load and deformation, meanwhile, the upward movement of the support point can change the internal force distribution of the support structure, so that the maximum bending moment and shear force of the support pile body are reduced, thereby reducing the risk of damage of the support structure due to excessive internal force. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 It is a schematic diagram of the overall structure of the present application; Figure 1 It is a schematic diagram of the overall structure of the present application;

[0017] Figure 3 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 4 It is a schematic diagram of the overall structure of the present application; Figure 3 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 5 It is a schematic diagram of the overall structure of the present application; Figure 4 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 6 For the present application Figure 4 Supporting rod structure schematic diagram of sectioning;

[0021] Figure 7 For the present application trigger structure schematic diagram;

[0022] Figure 8 For the present application adjustment structure schematic diagram;

[0023] Figure 9 For the present application adjustment structure schematic diagram of sectioning;

[0024] Figure 10 For the present application Figure 9 B area enlarged structure schematic diagram in the middle;

[0025] Figure 11 For the present application embodiment two structure schematic diagram.

[0026] In the figure: 1, supporting rod; 2, supporting plate; 3, drill bit; 4, fixed rod; 5, induction plate; 6, buffer mechanism; 7, contraction piece; 71, connecting pipe; 72, connecting rod; 73, contraction screw; 8, trigger; 81, sliding plate; 82, multi-stage telescopic rod; 83, telescopic spring; 84, trigger rod; 85, tooth groove; 9, power piece; 91, power gear one; 92, power shaft; 93, power gear two; 94, transmission gear; 10, adjustment piece; 101, adjustment groove; 102, sliding block; 103, extrusion groove; 104, extrusion block; 105, rotating rod; 106, extrusion screw; 107, power groove; 108, synchronous shaft; 109, synchronous pulley; 1010, synchronous belt; 11, control assembly; 12, moving piece; 121, moving groove; 122, moving block; 123, expansion plate; 124, guide block; 125, guide groove; 13, driving piece; 131, driving gear one; 132, driving shaft; 133, driving gear two; 134, positioning plate; 135, transmission screw; 136, linkage gear; 14, scale mark. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0028] Embodiment 1

[0029] Please refer to Figures 1-10 The present application provides a technical solution:

[0030] A soft soil deep foundation pit reinforced concrete support structure, comprising a support rod 1, a support plate 2, a fixed rod 4 and a drill bit 3 arranged on the fixed rod 4, further comprising an induction plate 5 arranged on the fixed rod 4, which controls the recovery of the fixed rod 4 when the pit bottom is uplifted.

[0031] A buffer mechanism 6 is arranged on the fixed rod 4, which controls the retraction of the fixed rod 4 when the induction plate 5 is pushed by the uplifted pit bottom soil.

[0032] The buffer mechanism 6 is arranged to control the retraction of the fixed rod 4 when the pit bottom is uplifted. When the pit bottom is uplifted, the support structure will be subjected to additional stress. By controlling the retraction of the fixed rod 4, the response of the support structure to the uplift of the pit bottom can be adjusted, thereby relieving stress concentration to some extent, reducing the stress on the support structure, and the pushing force generated by the uplift of the soil layer can be converted into the power for the retraction of the fixed rod 4, thereby reducing the reverse pushing force on the fixed rod 4 due to the uplift of the pit bottom, which helps to prolong the service life of the fixed rod 4 and reduce the safety risk caused by the destruction of the fixed rod 4, thereby improving the safety of workers working at the bottom of the foundation pit.

[0033] A control assembly 11 is arranged on the buffer mechanism 6, which controls the movement of the support rod 1 when the fixed rod 4 retracts, adjusting the support center of gravity of the support rod 1.

[0034] The control assembly 11 is arranged to raise the support point of the support rod 1 upward after the pit bottom is uplifted and the fixed rod 4 retracts. With the upward movement of the support point, the support structure can better resist the upward deformation caused by the uplift of the pit bottom, thereby reducing the overall deformation of the support structure. The upward movement of the support point is equivalent to adding a new constraint point in the support structure, which helps to enhance the overall stiffness of the support structure and make it more resistant to external loads and deformations. At the same time, the upward movement of the support point can change the internal force distribution of the support structure, reducing the maximum bending moment and shear force of the support pile body, thereby reducing the risk of damage to the support structure due to excessive internal force.

[0035] The buffer mechanism 6 comprises a retraction member 7 arranged on the fixed rod 4, which controls the retraction of the fixed rod 4. The fixed rod 4 is provided with a trigger member 8, which determines the retraction timing of the fixed rod 4. The fixed rod 4 is provided with a power member 9, which provides power for the work of the retraction member 7. The fixed rod 4 is provided with an adjustment member 10, which adjusts the position of the trigger member 8 on the fixed rod 4.

[0036] The contraction member 7 comprises a connecting pipe 71 slidingly arranged on the fixed rod 4, one end of the connecting pipe 71 is provided with a connecting rod 72, the connecting rod 72 is rotatably arranged with a contraction screw rod 73, the contraction screw rod 73 penetrates through the fixed rod 4 and is threadedly connected with the fixed rod 4.

[0037] The contraction member 7 is arranged to control the retraction of the fixed rod 4 when the bottom of the pit is uplifted, and the support structure will be subjected to additional stress when the bottom of the pit is uplifted, and the stress concentration is relieved to a certain extent by controlling the retraction of the fixed rod 4, thereby reducing the stress on the support structure.

[0038] The trigger member 8 comprises a sliding plate 81 slidingly arranged on the fixed rod 4, a plurality of multi-stage telescopic rods 82 are arranged on the sliding plate 81, the multi-stage telescopic rods 82 are connected with the induction plate 5, a telescopic spring 83 is sleeved on the multi-stage telescopic rods 82, a trigger rod 84 is arranged on the induction plate 5, the trigger rod 84 penetrates through the sliding plate 81 and is slidingly connected with the sliding plate 81, a plurality of tooth grooves 85 are formed in the trigger rod 84.

[0039] The trigger member 8 is arranged to convert the pushing force generated by the uplift of the soil layer into the power for the contraction of the fixed rod 4, thereby reducing the reverse pushing force on the fixed rod 4 due to the uplift of the bottom of the foundation pit, which helps to prolong the service life of the fixed rod 4.

[0040] The power member 9 comprises a power gear one 91 arranged on the contraction screw rod 73, a power shaft 92 is rotatably arranged on the side wall of the connecting pipe 71, one end of the power shaft 92 located in the connecting pipe 71 is provided with a power gear two 93 engaged with the power gear one 91, the end of the power shaft 92 away from the power gear two 93 is provided with a transmission gear 94, the transmission gear 94 is engaged with the tooth grooves 85 on the trigger rod 84.

[0041] The adjusting member 10 comprises adjusting grooves 101 arranged on both sides of the fixed rod 4, sliding blocks 102 are slidingly arranged in the adjusting grooves 101, the sliding blocks 102 are connected with the sliding plate 81, extrusion grooves 103 are formed in the sliding blocks 102, a plurality of extrusion blocks 104 are arranged in the extrusion grooves 103, a rotating rod 105 is rotatably arranged on the sliding plate 81, an extrusion screw rod 106 is arranged in the rotating rod 105, the extrusion screw rod 106 is threadedly connected with the rotating rod 105, and the extrusion screw rod 106 penetrates through the extrusion groove 103 and is slidingly connected with the extrusion groove 103, a power groove 107 is formed in the sliding plate 81, the rotating rod 105 penetrates through the power groove 107, a synchronous shaft 108 is rotatably arranged in the power groove 107, the synchronous shaft 108 and the rotating rod 105 located in the power groove 107 are both provided with synchronous pulleys 109, and the synchronous pulleys 109 are provided with a synchronous belt 1010.

[0042] The adjusting member 10 is arranged to adjust the height of the induction plate 5 according to the depth of the fixed rod 4 inserted into the soil layer, and the operation is simple and fast, which greatly improves the applicability of the support structure.

[0043] When the support is fixed, the worker first inserts the end of the fixed rod 4 provided with the drill bit 3 into the soil layer, and then adjusts the height of the sliding plate 81 according to the depth of the fixed rod 4 inserted into the soil layer. After adjusting the height, the worker first rotates the rotating rod 105, and the rotating rod 105 rotates to drive the synchronous pulley 109 to rotate, and then drives the synchronous shaft 108 to rotate through the synchronous belt 1010, and the synchronous shaft 108 rotates to drive the plurality of rotating rods 105 to rotate synchronously, and the rotating rod 105 rotates to drive the extrusion screw rod 106 connected with it to extend into the extrusion groove 103, and push the extrusion block 104 in the extrusion groove 103 to extrude the adjusting groove 101, thereby realizing the fixation of the sliding plate 81.

[0044] When the bottom of the pit is raised, the worker first pushes the induction plate 5 up, and the induction plate 5 rises to drive the trigger rod 84 to rise, and the trigger rod 84 rises to drive the transmission gear 94 to rotate through the tooth groove 85 arranged on it, and the transmission gear 94 rotates to drive the power shaft 92 to rotate, and the power shaft 92 rotates to drive the power gear two 93 arranged on it to rotate, and the power gear two 93 rotates to drive the power gear one 91 engaged with it to rotate, and the power gear one 91 rotates to drive the contraction screw rod 73 to rotate synchronously, and the contraction screw rod 73 rotates to drive the fixed rod 4 to retract.

[0045] The regulating assembly 11 includes a moving member 12 arranged on the connecting rod 72, which controls the movement of the support rod 1, and the connecting rod 72 is provided with a driving member 13, which provides power for the movement of the moving member 12.

[0046] The moving member 12 includes a moving groove 121 arranged on the connecting rod 72, and a guide block 124 is slidably arranged in the moving groove 121, and the guide block 124 is connected with the support rod 1, and the support rod 1 is provided with an expansion plate 123, and the expansion plate 123 is provided with a guide block 124, and the support plate 2 is provided with a guide groove 125 slidably connected with the guide block 124.

[0047] The moving member 12 is arranged to raise the support point of the support rod 1 after the pit bottom is raised and the fixed rod 4 is retracted, and the upward movement of the support point can change the internal force distribution of the support structure, so as to reduce the maximum bending moment and shear force of the support pile, thereby reducing the risk of damage of the support structure due to excessive internal force.

[0048] The driving member 13 comprises a driving shaft 132 rotatably arranged on the connecting pipe 71, the driving shaft 132 is provided with a driving gear I 131 engaged with the power gear I 91, the driving shaft 132 is provided with a driving gear II 133 at the end away from the driving gear I 131, the connecting rod 72 is provided with a positioning plate 134, the positioning plate 134 is rotatably provided with a transmission screw rod 135, the transmission screw rod 135 is provided with a transmission gear 136 engaged with the driving gear II 133, and the transmission screw rod 135 penetrates the moving block 122 and is threadedly connected with the moving block 122.

[0049] When the power gear I 91 rotates, the driving gear I 131 engaged with the power gear I 91 rotates synchronously, the driving shaft 132 connected with the driving gear I 131 rotates synchronously, the driving gear II 133 connected with the driving shaft 132 rotates synchronously, the driving gear II 133 rotates to drive the transmission screw rod 135 to rotate through the transmission gear 136, the transmission screw rod 135 rotates to drive the moving block 122 threadedly connected with the transmission screw rod 135 to slide in the moving groove 121, the moving block 122 moves to drive the supporting rod 1 and the extension plate 123 arranged on the supporting rod 1 to move synchronously, and the guide block 124 moves in the guide groove 125 on the supporting plate 2, and the guide groove 125 can improve the stability of the supporting rod 1 when moving.

[0050] In use, the worker first inserts the end of the fixed rod 4 provided with the drill bit 3 into the soil layer, adjusts the height of the sliding plate 81 according to the depth of the fixed rod 4 inserted, adjusts the height, and then rotates the rotating rod 105, the rotating rod 105 drives the synchronous pulley 109 to rotate, and then drives the synchronous shaft 108 to rotate through the synchronous belt 1010, the synchronous shaft 108 drives a plurality of rotating rods 105 to rotate synchronously, the rotating rod 105 drives the extrusion screw rod 106 threadedly connected with the rotating rod 105 to extend into the extrusion groove 103, and pushes the extrusion block 104 in the extrusion groove 103 to extrude the adjusting groove 101, so as to fix the sliding plate 81.

[0051] When the soil layer at the bottom of the pit rises, the worker first pushes the induction plate 5 to rise, the induction plate 5 rises to drive the trigger rod 84 to rise, the trigger rod 84 drives the transmission gear 94 to rotate through the tooth groove 85 arranged on the trigger rod 84 in the rising process, the transmission gear 94 drives the power shaft 92 to rotate, the power shaft 92 drives the power gear II 93 arranged on the power shaft 92 to rotate, the power gear II 93 drives the power gear I 91 engaged with the power gear II 93 to rotate, and the power gear I 91 drives the contraction screw rod 73 to rotate synchronously, and the contraction screw rod 73 drives the fixed rod 4 to retract.

[0052] When the power gear 91 rotates, the driving gear 131 engaged with the power gear 91 rotates synchronously, the driving shaft 132 connected with the driving gear 131 rotates synchronously, the driving gear 132 rotates synchronously, the driving gear 133 rotates through the connecting gear 136 to drive the transmission screw rod 135 to rotate, the transmission screw rod 135 drives the moving block 122 in the moving groove 121 to slide, the moving block 122 moves, the support rod 1 and the extension plate 123 arranged on the support rod 1 move synchronously, and the guide block 124 moves in the guide groove 125 on the support plate 2.

[0053] Embodiment 2

[0054] Please refer to Figure 11 The present application provides a technical solution:

[0055] Different from the embodiment 1, the fixed rod 4 is provided with the scale mark 14, and the scale mark 14 can make the staff more intuitively observe the uplift height of the pit bottom soil layer, and facilitate the staff to make subsequent processing.

[0056] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0057] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A soft soil deep foundation pit reinforced concrete support structure, comprising a support rod (1), a support plate (2), a fixed rod (4) and a drill bit (3) arranged on the fixed rod (4), characterized in that: Further comprising: a sensing plate (5) arranged on the fixed rod (4), which controls the recovery of the fixed rod (4) when the pit bottom is uplifted; a buffer mechanism (6) arranged on the fixed rod (4), which controls the retraction of the fixed rod (4) when the sensing plate (5) is pushed by the uplifted pit bottom soil; a control assembly (11) arranged on the buffer mechanism (6), which controls the movement of the support rod (1) and adjusts the support center of gravity of the support rod (1) when the fixed rod (4) retracts; The buffer mechanism (6) comprises a retraction member (7) arranged on the fixed rod (4), which controls the retraction of the fixed rod (4), a trigger member (8) arranged on the fixed rod (4), which determines the retraction timing of the fixed rod (4), a power member (9) arranged on the fixed rod (4), which provides power for the operation of the retraction member (7), and an adjustment member (10) arranged on the fixed rod (4), which adjusts the position of the trigger member (8) on the fixed rod (4); The retraction member (7) comprises a connecting pipe (71) slidingly arranged on the fixed rod (4), one end of the connecting pipe (71) is provided with a connecting rod (72), the connecting rod (72) is rotatably provided with a retraction screw rod (73), the retraction screw rod (73) penetrates the fixed rod (4) and is threadedly connected with the fixed rod (4); The trigger member (8) comprises a sliding plate (81) slidingly arranged on the fixed rod (4), a plurality of multi-stage telescopic rods (82) arranged on the sliding plate (81), the multi-stage telescopic rods (82) are connected with the sensing plate (5), a telescopic spring (83) is sleeved on the multi-stage telescopic rods (82), a trigger rod (84) is arranged on the sensing plate (5), the trigger rod (84) penetrates the sliding plate (81) and is slidingly connected with the sliding plate (81), a plurality of tooth grooves (85) are formed in the trigger rod (84); The power member (9) comprises a power gear one (91) arranged on the retraction screw rod (73), a power shaft (92) rotatably arranged on the side wall of the connecting pipe (71), the power shaft (92) is located in the connecting pipe (71) and one end of the power shaft (92) is provided with a power gear two (93) engaged with the power gear one (91), the other end of the power shaft (92) is provided with a transmission gear (94), and the transmission gear (94) is engaged with the tooth grooves (85) on the trigger rod (84).

2. The soft soil deep foundation pit reinforced concrete support structure according to claim 1, characterized in that: The adjusting part (10) includes adjusting grooves (101) arranged on both sides of the fixed rod (4), sliding blocks (102) are arranged in the adjusting grooves (101) in a sliding mode, the sliding blocks (102) are connected with sliding plates (81), extrusion grooves (103) are formed in the sliding blocks (102), a plurality of extrusion blocks (104) are arranged in the extrusion grooves (103), the sliding plates (81) are rotatably provided with rotating rods (105), the rotating rods (105) are provided with extrusion lead screws (106), the extrusion lead screws (106) are threadedly connected with the rotating rods (105), the extrusion lead screws (106) pass through the extrusion grooves (103) and are connected with the extrusion grooves (103) in a sliding mode, power grooves (107) are formed in the sliding plates (81), the rotating rods (105) pass through the power grooves (107), synchronous shafts (108) are rotatably arranged in the power grooves (107), the synchronous shafts (108) and the rotating rods (105) are provided with synchronous pulleys (109) in a section in the power grooves (107), and the synchronous pulleys (109) are provided with synchronous belts (1010).

3. The soft soil deep foundation pit reinforced concrete support structure according to claim 2, characterized in that: The regulating assembly (11) includes a moving part (12) arranged on the connecting rod (72), the moving part (12) is used for controlling the moving of the support rod (1), and the connecting rod (72) is provided with a driving part (13) for providing power for the moving of the moving part (12).

4. The soft soil deep foundation pit reinforced concrete support structure according to claim 3, characterized in that: The moving part (12) includes a moving groove (121) formed in the connecting rod (72), a guide block (124) is arranged in the moving groove (121) in a sliding mode, the guide block (124) is connected with the support rod (1), the support rod (1) is provided with an expansion plate (123), the expansion plate (123) is provided with the guide block (124), and the support plate (2) is provided with a guide groove (125) in sliding connection with the guide block (124).

5. The soft soil deep foundation pit reinforced concrete support structure according to claim 4, characterized in that: The driving part (13) includes a driving shaft (132) rotatably arranged on the connecting pipe (71), the driving shaft (132) is provided with a driving gear one (131) engaged with the power gear one (91), one end, away from the driving gear one (131), of the driving shaft (132) is provided with a driving gear two (133), the connecting rod (72) is provided with a positioning plate (134), the positioning plate (134) is rotatably provided with a transmission lead screw (135), the transmission lead screw (135) is provided with a linkage gear (136) engaged with the driving gear two (133), and the transmission lead screw (135) penetrates through the moving block (122) and is threadedly connected with the moving block (122).

6. The soft soil deep foundation pit reinforced concrete support structure according to claim 5, characterized in that: The fixed rod (4) is provided with a scale mark (14).

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