A deep foundation pit sidewall formwork anchoring system

Abstract

This invention relates to the field of foundation pit construction technology, specifically addressing the problem of loose interlocking of sheet piles. It relates to a deep foundation pit sidewall formwork anchoring system, comprising walers and a moving mechanism. Two walers are erected along the arrangement direction of the sheet piles. The moving mechanism straddles the two walers and includes a guiding mechanism and a fixing mechanism, arranged sequentially along the moving direction of the moving mechanism. The moving mechanism includes a braking part, a driving part, and a gap control mechanism. The gap control mechanism controls the distance between the braking part and the driving part. The fixing mechanism includes a limit control mechanism. This application achieves fixation between the moving mechanism and the walers through the braking part, while the driving part of the moving mechanism retains its mobility to move along the walers. The gap control mechanism expands the movement limit between the braking part and the driving part, thereby ensuring tight contact between the interlocking rings of the two sheet piles.

Description

Technical Field

[0001] This invention relates to the field of foundation pit construction technology, specifically to a deep foundation pit sidewall formwork anchoring system. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the foundation elevation and foundation plane dimensions. When the excavation is deep or there are buildings nearby, in order to ensure the safety of the underground structure construction and the surrounding environment of the excavation pit, it is necessary to adopt support, reinforcement and protection measures for the side walls of the excavation pit and the surrounding environment.

[0003] Formwork is usually required to build walls on the side walls of deep foundation pits in order to improve the stability of the deep foundation pits. Steel sheet piles are also a type of formwork for foundation pit side walls. Steel sheet pile side walls are divided into individual driving method and screen driving method.

[0004] The single-pile driving method starts from one corner of the steel sheet pile wall and drives the piles one by one until the project is completed. Its advantages are convenience and speed, and no auxiliary support is required. Its disadvantages are that the pile body is prone to tilting during the driving process, and the accumulated errors are not easy to correct.

[0005] The screen-type driving method involves inserting 10-20 sheet piles in a row into a guide frame to form a screen shape. The pile driver then drives the piles back and forth, first driving the two ends to the required depth, and then driving the middle sheet piles in sequentially. Its advantages are that this construction method can prevent the accumulation of tilting errors in the sheet piles, prevent excessive tilting, and is easy to close after construction. Its disadvantages are that the construction speed is slow and the construction pile frame needs to be erected relatively high.

[0006] In response to the above situation, Chinese patent CN114525783A discloses a steel sheet pile driving process and driving positioning equipment in foundation pit construction. The driving mechanism can drive the positioning platform to move along the arrangement direction of the steel sheet piles. After the positioning platform completes the positioning and driving of the steel sheet piles, the staff controls the driving mechanism to move the positioning platform to the driving position of the next steel sheet pile.

[0007] This patent describes a process where a driving mechanism moves a positioning platform along the direction of the sheet piles to complete the sheet pile driving process. However, since adjacent sheet piles are either interlocked or side-by-side, and the interlocking areas typically have a certain degree of slack, meaning the interlocking surfaces are not fully in contact or have gaps, specifically... Figure 1 and Figure 2 As shown, this will greatly reduce the waterproofing of the sidewall composed of sheet piles, and water in the soil outside the foundation pit will enter the foundation pit through the sheet piles. To solve this problem, a deep foundation pit sidewall formwork anchoring system needs to be proposed. Summary of the Invention

[0008] To solve the technical problem of loose interlocking of steel sheet piles.

[0009] This application provides a deep foundation pit sidewall formwork anchoring system, including walers and a moving mechanism. There are two walers, which are erected along the arrangement direction of the sheet piles. The moving mechanism straddles the two walers, and the walers guide the moving direction of the moving mechanism.

[0010] The moving mechanism is equipped with a guiding mechanism and a fixing mechanism, which are arranged sequentially along the moving direction of the moving mechanism. The guiding mechanism is symmetrically arranged along the arrangement direction of the sheet piles, and the fixing mechanism is symmetrically arranged along the arrangement direction of the sheet piles. The guiding mechanism is used to limit the horizontal position of the sheet piles that have not been inserted into the soil layer or are being inserted into the soil layer. The fixing mechanism is used to fix the sheet piles that have been inserted. The moving mechanism includes a braking part, a driving part, and a gap control mechanism. The gap control mechanism is installed between the braking part and the driving part and is used to control the distance between the braking part and the driving part. The fixing mechanism is installed on the braking part of the moving mechanism, and the guiding mechanism is installed on the driving part of the moving mechanism.

[0011] The fixing mechanism is equipped with a limit control mechanism to guide the steel sheet pile buckle that is not inserted into the soil layer.

[0012] Preferably, the braking part of the moving mechanism is provided with a guide rod, and the braking part is slidably connected to the driving part of the moving mechanism through the guide rod. The driving part is provided with an elastic element, and the elastic element will push the braking part away from the driving part through the guide rod under normal conditions.

[0013] Preferably, the guiding mechanism includes a first support panel and a first linear driver. The first support panel is slidably connected to the driving part of the moving mechanism. The first linear driver is mounted on the driving part. The output end of the first linear driver is connected to the first support panel in a transmission manner. First rolling elements are provided on both sides of the first support panel.

[0014] Preferably, a plurality of second rolling elements are arranged on the outer surface of the first support panel.

[0015] Preferably, the fixing mechanism includes a second support panel and a second linear driver. The second support panel is slidably connected to the braking part of the moving mechanism. The second linear driver is fixedly installed on the braking part. The output end of the second linear driver is connected to the second support panel in a transmission manner. A third rolling element is provided on both sides of the second support panel.

[0016] Preferably, a third support panel is symmetrically arranged on both sides of the second support panel, and the third support panel is hinged to the second support panel. A third linear actuator is also provided on the second support panel, and the output end of the third linear actuator is respectively connected to the two third support panels. When the third linear actuator is working, the third support panel will fit against the inner inclined surface of the steel sheet pile.

[0017] Preferably, the limit control mechanism includes a first limit member and a second limit member. The first limit member is installed on the top of the outer end of the third support panel, and the second limit member is slidably installed on the first limit member. A fourth linear actuator is provided on the first limit member to push the second limit member. When the fourth linear actuator is in working state, the first limit member and the second limit member form a limit frame, and one side of the limit frame is open, allowing the buckle of the sheet pile that has not been inserted into the sheet pile to be inserted.

[0018] Preferably, the drive unit includes a first support frame that straddles two walers, a rotary drive is mounted on the first support frame, and a first wheel is rotatably mounted on the bottom of the first support frame.

[0019] The braking unit includes a second support frame, and there are two second support frames. The two second support frames are respectively installed on both sides of the first support frame. The two second support frames are slidably connected to the first support frame through guide rods. A second wheel is provided at the bottom of the second support frame. The second wheel is used for driving and braking. The first wheel is connected to the output end of the rotary drive through a belt. A guide rail is provided on the waler to guide the first wheel and the second wheel to roll.

[0020] The beneficial effects of this invention compared to the prior art are:

[0021] This application uses the braking part of the moving mechanism to fix the waler rod, thereby fixing the position of the fixing mechanism as well, while the driving part of the moving mechanism still maintains the mobility to move along the waler rod. The gap control mechanism expands the movement limit of the distance between the braking part and the driving part, thereby making the buckle between the two steel sheet piles make tight contact. This solves the problem that the reserved size of the inner diameter of the buckle is too large, which causes the inner walls of the two steel sheet piles to not be in complete contact or to have a certain gap even after the positive and negative buckle overlap is completed. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the splicing state of the steel sheet piles;

[0023] Figure 2 for Figure 1 Enlarged view of point A;

[0024] Figure 3 This is a top view of the first working state of the present invention;

[0025] Figure 4 This is a top view of the second working state of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of point B;

[0027] Figure 6 This is a front view of the second working state of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the third working state of the present invention;

[0029] Figure 8 This is a top view of the third working state of the present invention;

[0030] Figure 9 for Figure 8 Enlarged view of point C;

[0031] Figure 10 for Figure 8 Enlarged view of point D;

[0032] Figure 11 for Figure 8 Enlarged view of point E;

[0033] Figure 12 This is a top view of the fourth working state of the present invention;

[0034] Figure 13 for Figure 12 Enlarged view at point F;

[0035] Figure 14 This is a front view of the moving mechanism and waler of the present invention;

[0036] Figure 15 This is a schematic diagram of the internal structure of the moving mechanism of the present invention.

[0037] The numbers on the map are:

[0038] 1-Wallpost;

[0039] 2-Moving mechanism; 2a-Brake unit; 2a1-Second support frame; 2a2-Second wheel; 2b-Drive unit; 2b1-First support frame; 2b2-Rotary drive; 2b3-First wheel; 2c-Clearance control mechanism; 2c1-Guide rod; 2c2-Elastic element;

[0040] 3-Guide mechanism; 3a-First support panel; 3a1-First rolling element; 3a2-Second rolling element; 3b-First linear actuator;

[0041] 4-Fixing mechanism; 4a-Second support panel; 4a1-Third rolling element; 4a2-Third support panel; 4b-Second linear actuator; 4c-Third linear actuator;

[0042] 5-Limit control mechanism; 5a-First limit element; 5b-Second limit element; 5b1-Fourth rolling element; 5c-Fourth linear actuator;

[0043] 6-Sheet pile; 6a-Interlocking ring; 6b-Inner plane; 6c-Inner inclined plane. Implementation

[0044] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0045] In some embodiments

[0046] like Figures 3 to 9 As shown, the following preferred technical solutions are provided:

[0047] A deep foundation pit sidewall formwork anchoring system includes walers 1 and a moving mechanism 2. There are two walers 1, which are erected along the arrangement direction of the sheet piles 6. The moving mechanism 2 straddles the two walers 1, and the walers 1 guide the moving direction of the moving mechanism 2.

[0048] The moving mechanism 2 is equipped with a guiding mechanism 3 and a fixing mechanism 4. The guiding mechanism 3 and the fixing mechanism 4 are arranged sequentially along the moving direction of the moving mechanism 2. The guiding mechanism 3 is symmetrically arranged along the arrangement direction of the sheet piles 6, and the fixing mechanism 4 is symmetrically arranged along the arrangement direction of the sheet piles 6. The guiding mechanism 3 is used to restrict the horizontal position of the sheet piles 6 that have not been inserted into the soil layer or are being inserted into the soil layer and to guide their vertical movement direction. The fixing mechanism 4 fixes the sheet piles 6 that have been inserted. The moving mechanism 2 includes a braking part 2a, a driving part 2b and a gap control mechanism 2c. The gap control mechanism 2c is installed between the braking part 2a and the driving part 2b. The gap control mechanism 2c is used to control the distance between the braking part 2a and the driving part 2b. The fixing mechanism 4 is installed on the braking part 2a of the moving mechanism 2, and the guiding mechanism 3 is installed on the driving part 2b of the moving mechanism 2.

[0049] The fixing mechanism 4 is equipped with a limit control mechanism 5 for guiding the steel sheet pile 6 that has not been inserted into the soil at the buckle 6a.

[0050] Specifically, since the adjacent sheet piles 6 are connected by interlocking or side-by-side, and the interlocking position usually has a certain degree of slack, that is, there is no contact or a certain gap between the interlocking parts. In order to avoid the technical problem of low waterproofness of the side wall formed by the sheet piles 6, the workers first erect two walers 1 along the arrangement direction of the sheet piles 6. The position of the walers 1 is controlled and adjusted by theodolite and level during the erection process. The distance between the two walers 1 is generally slightly larger than the thickness of the sheet pile wall by 8~15mm. After the walers 1 are erected, the moving mechanism 2 is straddled and installed on the two walers 1. Then, the sheet piles 6 are lifted by the crane and moved to the working end of the guide mechanism 3, and the sheet piles 6 are located between the two walers 1.

[0051] It is important to note that each sheet pile 6 must be inspected before piling. Sheet piles 6 with severe rust or deformation at the connecting locks should be removed. Only those that pass repair and integration can be used. Sheet piles that still fail after repair should not be used. Grease can be applied to the locking joints of the sheet piles 6 to facilitate driving and extraction. After being controlled by the guide mechanism 3, the horizontal position of the sheet piles 6 is restricted. Then, a tracked excavator drives the sheet piles 6 to the design elevation. After the sheet piles 6 are driven, the moving mechanism 2 moves along the waler 1... The mechanism is moved until the fixing mechanism 4 is positioned at the completed sheet pile 6. The fixing mechanism 4 then secures the completed sheet pile 6. After the fixing mechanism 4 completes its fixation, the limit control mechanism 5 is also positioned at the buckle 6a of the completed sheet pile 6. Next, the workers need to assemble and drive the next sheet pile 6. The sheet pile 6 to be inserted is lifted by a crane and moved to the working end of the guide mechanism 3. At this point, it is necessary to control the buckle of the sheet pile 6 to be inserted within the control range of the limit control mechanism 5. Specifically... Figures 4 to 6 As shown, during the process of the crane controlling the descent of the sheet pile 6 to be inserted, the limit control mechanism 5 guides the connection with the buckle 6a of the already inserted sheet pile 6. Specifically, as follows... Figure 7 and Figure 8 As shown, after the two sheet piles 6 are spliced ​​together using the interlocking ring 6a, the guide mechanism 3 positions the sheet pile 6 to be inserted horizontally and at an angle. To reduce frictional resistance and prevent splicing failures during the interlocking process, the reserved inner diameter of the interlocking ring 6a is larger than normal. This results in incomplete contact or gaps between the inner walls of the two sheet piles 6 even after the front and back interlocking is completed. To ensure tight contact between the interlocking ring 6a of the inserted sheet pile 6 and the sheet pile to be inserted, the braking part 2a of the moving mechanism 2 is fixed to the waler 1, thus fixing the position of the fixing mechanism 4. The driving part 2b of the moving mechanism 2 retains its mobility to move along the waler 1. The gap control mechanism 2c expands the movement limit between the braking part 2a and the driving part 2b, thereby ensuring tight contact between the interlocking ring 6a of the two sheet piles 6. Figure 9 As shown.

[0052] In some embodiments, such as Figure 7 , Figure 10 , Figure 14 and Figure 15 As shown, the following preferred technical solutions are provided:

[0053] The guiding mechanism 3 includes a first support panel 3a and a first linear actuator 3b. A limit rod is provided on the first support panel 3a. The first support panel 3a is slidably connected to the driving part 2b of the moving mechanism 2 through the limit rod. The first linear actuator 3b is mounted on the driving part 2b. The output end of the first linear actuator 3b is connected to the first support panel 3a in a transmission manner. Multiple first rolling elements 3a1 are arranged on both sides of the first support panel 3a. The first rolling elements 3a1 are balls, but not limited to them. Multiple second rolling elements 3a2 are arranged on the outer surface of the first support panel 3a. The second rolling elements 3a2 are rollers, but not limited to them. The first rolling elements 3a1 are used to cooperate with the driving process of the sheet pile 6 to reduce the friction of the first support panel 3a on the sheet pile 6.

[0054] The braking part 2a of the moving mechanism 2 is provided with a guide rod 2c1. The braking part 2a is slidably connected to the driving part 2b of the moving mechanism 2 through the guide rod 2c1. The driving part 2b is provided with an elastic element 2c2. The elastic element 2c2 is a spring, but not limited to it. The output end of the elastic element 2c2 is connected to the guide rod 2c1. Under normal conditions, the elastic element 2c2 will push the braking part 2a away from the driving part 2b through the guide rod 2c1.

[0055] Specifically, because the inner diameter of the retaining ring 6a of the sheet pile 6 is relatively large, the center distance between the two sheet piles 6 after they are interlocked and arranged side by side is not consistent when the retaining ring 6a is in close contact and when they are not in close contact. In order to ensure that the retaining ring 6a between the two sheet piles 6 is in close contact and to ensure the position of the uninserted sheet pile 6 is limited, the guide mechanism 3 located on the inner plane 6b side of the uninserted sheet pile 6 starts to work after the two sheet piles 6 are spliced ​​with the retaining ring 6a. The first linear actuator 3b pushes the first support panel 3a closer to the inner plane 6b of the sheet pile 6, and clamps the uninserted sheet pile 6 by the two first support panels 3a located on the inner plane 6b and outer plane of the sheet pile 6 respectively. Since the elastic element 2c2 will normally push the braking part 2a away from the driving part 2b through the guide rod 2c1, the first support panel 3c2 will clamp the uninserted sheet pile 6 during the clamping process. a will not be able to directly contact the inner plane 6b of the sheet pile 6. Since the braking part 2a of the moving mechanism 2 completes the fixation between itself and the waler 1, the position of the fixing mechanism 4 is also fixed. The driving part 2b of the moving mechanism 2 still maintains the mobility to move along the waler 1 through the action of the one-way rod. If the buckle 6a is at the maximum gap, the center distance between the two sheet piles is also the minimum. Therefore, as the first support panel 3a approaches the inner plane 6b of the sheet pile 6, the first rolling element 3a1 on one side will contact the inner inclined surface 6c of the sheet pile 6. As the first support panel 3a approaches the inner plane 6b of the sheet pile 6, the first rolling element 3a1 will push the sheet pile 6 that is not inserted into the soil away from the sheet pile 6 that has been inserted into the soil along the arrangement direction of the sheet pile 6. This makes the buckle 6a of the sheet pile 6 that is not inserted into the soil and the sheet pile 6 that has been inserted into the soil fit tightly together. Figure 12 and Figure 13 As shown; due to slight differences in size between sheet piles 6, the elastic element 2c2 can ensure that the first rolling element 3a1 on one side of the first support panel 3a can always abut against the inner inclined surface 6c of the sheet pile 6 to achieve the tightening process of the buckle 6a of the sheet pile 6, even when the sheet piles have different sizes.

[0056] In some embodiments, such as Figure 7 , Figure 9 and Figure 11 As shown, the following preferred technical solutions are provided:

[0057] The fixing mechanism 4 includes a second support panel 4a and a second linear actuator 4b. A limit rod is provided on the second support panel 4a. The second support panel 4a is slidably connected to the braking part 2a of the moving mechanism 2 through the limit rod. The second linear actuator 4b is fixedly installed on the braking part 2a. The output end of the second linear actuator 4b is connected to the second support panel 4a for transmission. After the sheet pile 6 is driven, the moving mechanism 2 moves along the waler 1 until the two fixing mechanisms 4 are located on both sides of the completed sheet pile 6. The fixing mechanism 4 located on the side of the inner plane 6b of the sheet pile 6 starts to work. The second linear actuator 4b pushes the second support panel 4a close to the inner plane 6b of the sheet pile 6. The two second support panels 4a, which are located on both sides of the inner plane 6b and the outer plane of the sheet pile 6, clamp the inserted sheet pile 6.

[0058] Multiple third rolling elements 4a1 are arranged on both sides of the second support panel 4a. The third rolling elements 4a1 are balls, but not limited to them. Since the moving distance of the moving mechanism 2 may differ from the predetermined distance, when the second support panel 4a cannot directly fit the inner plane 6b of the inserted steel sheet pile 6, the third rolling element 4a1 on one side of the second support panel 4a will inevitably come into contact with the inner inclined surface 6c of the steel sheet pile 6. Therefore, in the process of the second linear drive 4b further pushing the second support panel 4a and under the guidance of the third rolling elements 4a1, the position of the moving mechanism 2 is determined in the opposite direction.

[0059] Symmetrically arranged on both sides of the second support panel 4a are third support panels 4a2, which are hinged to the second support panel 4a. A third linear actuator 4c is also provided on the second support panel 4a. The third linear actuator 4c is a double-headed cylinder, but not limited to this. The output end of the third linear actuator 4c is respectively connected to the two third support panels 4a2 for transmission. In order to further ensure that the horizontal position of the inserted steel sheet pile 6 will not be deviated during the driving of the uninserted steel sheet pile 6, after the two second support panels 4a, which are located on both sides of the inner plane 6b and the outer plane of the steel sheet pile 6, clamp the inserted steel sheet pile 6, the third linear actuator 4c in the fixing mechanism 4 in the inner plane 6b of the steel sheet pile 6 will drive the third support panels 4a2 on both sides of the second support panel 4a to open. This makes the trapezoidal structure formed by the second support panel 4a and the two third support panels 4a2 fit with the inner edge surface of the steel sheet pile 6, thereby improving the fixing effect of the inserted steel sheet pile 6 and avoiding the vibration influence of the uninserted steel sheet pile 6 on the inserted steel sheet pile 6 during the driving process.

[0060] The limit control mechanism 5 includes a first limit member 5a and a second limit member 5b. The first limit member 5a is right-angled and is mounted on the top of the outer end of the third support panel 4a2. The second limit member 5b is slidably mounted on the first limit member 5a and is also right-angled. A fourth linear actuator 5c is provided on the first limit member 5a to push the second limit member 5b. When the fourth linear actuator 5c is in operation, the first limit member 5a and the second limit member 5b form a limit frame, and one side of the limit frame is open. The opening allows the retaining ring 6a of the sheet pile 6 that is not inserted into the sheet pile 6 to be inserted. Before the third linear actuator 4c drives the third support panel 4a2 to reset, the fourth linear actuator 5c needs to drive the second limiting member 5b to disengage from the retaining ring 6a of the sheet pile 6, so as to avoid the sheet pile 6 blocking the second limiting member 5b when the third support panel 4a2 is reset. The outer end of the second limiting member 5b is provided with a fourth rolling element 5b1, which is used to reduce the friction when the sheet pile 6 is not inserted and has horizontal displacement.

[0061] In some embodiments, such as Figure 14 and Figure 15 As shown, the following preferred technical solutions are provided:

[0062] The drive unit 2b includes a first support frame 2b1, which straddles two waler rods 1. A rotary driver 2b2 is provided on the first support frame 2b1. Multiple first wheels 2b3 are symmetrically arranged at the bottom of the first support frame 2b1, and the first wheels 2b3 are rotatably connected to the first support frame 2b1.

[0063] The braking unit 2a includes a second support frame 2a1. There are two second support frames 2a1, which are respectively installed on both sides of the first support frame 2b1. The two second support frames 2a1 are slidably connected to the first support frame 2b1 through guide rods 2c1. A second wheel 2a2 is provided at the bottom of the second support frame 2a1. The second wheel 2a2 is used for driving and braking. A plurality of first wheels 2b3 are connected to the output end of the rotary driver 2b2 through belts. A guide rail is provided on the waler 1 to guide the first wheels 2b3 and the second wheels 2a2 to roll.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A deep foundation pit side wall formwork anchoring system, characterized in that, The utility model relates to a steel sheet pile driving device, including have surrounding purlin (1) and moving mechanism (2), surrounding purlin (1) have two, two surrounding purlin (1) are set up along the steel sheet pile arrangement direction, moving mechanism (2) is straddled on two surrounding purlin (1), and surrounding purlin (1) the direction of movement of moving mechanism (2) is guided, Moving mechanism (2) is provided with guiding mechanism (3) and fixed mechanism (4), guiding mechanism (3) and fixed mechanism (4) are sequentially arranged along the direction of movement of moving mechanism (2), guiding mechanism (3) is symmetrically set along the steel sheet pile arrangement direction, fixed mechanism (4) is symmetrically set along the steel sheet pile arrangement direction, guiding mechanism (3) is used for limiting the horizontal position of the steel sheet pile not inserted into the soil layer or being inserted into the soil layer, fixed mechanism (4) is used for fixing the steel sheet pile that has completed insertion, moving mechanism (2) includes brake part (2a), drive part (2b) and gap control mechanism (2c), gap control mechanism (2c) is installed between brake part (2a) and drive part (2b), gap control mechanism (2c) is used for controlling the distance between brake part (2a) and drive part (2b), fixed mechanism (4) is installed on the brake part (2a) of moving mechanism (2), guiding mechanism (3) is installed on the drive part (2b) of moving mechanism (2), Fixed mechanism (4) is provided with spacing control mechanism (5) for guiding the buckle ring of the steel sheet pile not inserted into the soil layer; The brake part (2a) of moving mechanism (2) is provided with a guide rod (2c1), and the brake part (2a) is slidably connected to the drive part (2b) of the moving mechanism (2) through the guide rod (2c1); an elastic element (2c2) is arranged on the drive part (2b), and the elastic element (2c2) normally pushes the brake part (2a) away from the drive part (2b) through the guide rod (2c1); The guiding mechanism (3) comprises a first support panel (3a) and a first linear driver (3b), the first support panel (3a) is slidably connected to the drive part (2b) of the moving mechanism (2), and the first linear driver (3b) is installed on the drive part (2b); the output end of the first linear driver (3b) is in transmission connection with the first support panel (3a), and the two sides of the first support panel (3a) are both provided with first rolling bodies (3a1).

2. The deep foundation pit side wall formwork anchoring system according to claim 1, characterized in that, A plurality of second rolling bodies (3a2) are arranged on the outer surface of the first support panel (3a).

3. The deep foundation sidewall form anchoring system according to claim 1, wherein, The fixed mechanism (4) comprises a second support panel (4a) and a second linear driver (4b), the second support panel (4a) is slidably connected to the brake part (2a) of the moving mechanism (2), the second linear driver (4b) is fixedly installed on the brake part (2a), the output end of the second linear driver (4b) is in transmission connection with the second support panel (4a), and the two sides of the second support panel (4a) are both provided with third rolling bodies (4a1).

4. The deep foundation pit side wall formwork anchoring system according to claim 3, characterized in that, Two sides of the second support panel (4a) are symmetrically provided with the third support panel (4a2), the third support panel (4a2) is hingedly connected with the second support panel (4a), and the second support panel (4a) is further provided with the third linear driver (4c), the output ends of the third linear driver (4c) are respectively in transmission connection with the two third support panels (4a2), and the third support panel (4a2) will be attached to the inner inclined surface of the steel sheet pile in the working state of the third linear driver (4c).

5. The deep excavation sidewall formwork anchoring system according to claim 4, wherein, The limiting control mechanism (5) comprises the first limiting piece (5a) and the second limiting piece (5b), the first limiting piece (5a) is installed on the top of the outer end of the third support panel (4a2), the second limiting piece (5b) is slidingly installed on the first limiting piece (5a), the fourth linear driver (5c) is arranged on the first limiting piece (5a) and used to push the second limiting piece (5b), the first limiting piece (5a) and the second limiting piece (5b) form a limiting frame in the working state of the fourth linear driver (5c), and one side of the limiting frame is open, and the opening is used for inserting the clasp of the steel sheet pile which is not inserted into the steel sheet pile.

6. The deep excavation wall form tieback system according to claim 1, wherein, The driving part (2b) comprises the first support frame (2b1), the first support frame (2b1) straddles the two surrounding purlin bars (1), the first support frame (2b1) is provided with the rotary driver (2b2), and the bottom of the first support frame (2b1) is rotatably provided with the first wheel (2b3); The braking part (2a) comprises the second support frame (2a1), the second support frame (2a1) has two, the two second support frames (2a1) are respectively installed on the two sides of the first support frame (2b1), the two second support frames (2a1) are respectively slidingly connected with the first support frame (2b1) through the guide rods (2c1), and the bottom of the second support frame (2a1) is provided with the second wheel (2a2), the second wheel (2a2) is used to drive and brake, the first wheel (2b3) is in transmission connection with the output end of the rotary driver (2b2) through a belt, and the surrounding purlin bar (1) is provided with a guide rail used to guide the rolling of the first wheel (2b3) and the second wheel (2a2).

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