A special hanger for rectangular pipe jacking section experimental support frame

Abstract

The application provides a special lifting appliance for a rectangular top pipe joint experiment support frame, and relates to the technical field of rectangular top pipe joint experiment instruments, which comprises a compression resistance experiment support frame, a steel cable pull plate connected to the outer side of the compression resistance experiment support frame through a steel cable, four fixedly connected four-way connecting frames on the upper side of the compression resistance experiment support frame, a four-way lifting mechanism fixedly connected to the middle of one side of the four-way connecting frame away from the center of the compression resistance experiment support frame, and a plurality of lifting support tables and movable support tables for supporting the pipe joint from multiple points. When the bearing strength is tested, if the pipe joint is locally fractured under the action of pressure, the fractured part can be supported by the supporting structure composed of the lifting support tables and the movable support tables below the fractured part to avoid falling, and the remaining part of the pipe joint can also be supported by the supporting structure composed of the lifting support tables and the movable support tables to avoid the fracture of the pipe joint and the imbalance of the pipe joint, thereby avoiding damage to the test site and test equipment and avoiding the occurrence of safety accidents.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rectangular jacking pipe segment experimental instruments, and particularly relates to a special lifting appliance for a rectangular jacking pipe segment experimental support frame. BACKGROUND

[0002] The rectangular jacking pipe segment is a component of a tunnel main body, refers to a structural unit which is assembled in sections to form a tunnel permanent lining in a jacking process, and needs to meet requirements of strength, waterproofness, construction adaptability and the like in design, in strength detection experiments of the rectangular jacking pipe segment, a centripetal pressure is applied to the rectangular jacking pipe, and whether deformation, cracking or even fracture of the rectangular jacking pipe occurs when the pressure increases is observed, in a traditional detection mode, a test special support frame is arranged at the center of the rectangular jacking pipe segment, and a plurality of pull plates are distributed and installed on the outer surface of the rectangular jacking pipe segment, the pull plates are connected with the support frame through a steel cable, and the steel cable is retracted through an external tool, so that the pull plates on the outer portion of the pipe segment are close to the center of the pipe segment under the contraction of the steel cable, and the centripetal pressure is applied to the pipe segment, so that the strength detection of the rectangular jacking pipe segment is realized.

[0003] In the traditional strength test experiment of the rectangular jacking pipe segment, the rectangular jacking pipe segment to be tested needs to be hoisted to the outside of the support frame through the lifting appliance, and the pipe segment is suspended at a proper height through the lifting appliance during the test, in the lifting mode of the pipe segment by the traditional lifting appliance, the pipe segment is generally lifted by a local fixing and a hook lifting ring, the lifting appliance is prone to shaking during the process of arranging the pull plates and the steel cable in the suspended state, and the operation difficulty of the steel cable threading and the pull plate arrangement is increased, if the pipe segment is fractured during the test, the fractured part will quickly fall off if lacking support, the suspension of the lifting appliance to the pipe segment loses balance and tilts, the damaged pipe segment collides with the ground or the support frame, and the experimental site is damaged, and even a safety accident is caused. SUMMARY

[0004] The present application provides a special lifting appliance for a rectangular jacking pipe segment experimental support frame, so as to solve the problems that the lifting appliance is prone to shaking during the process of arranging the pull plates and the steel cable in the suspended state, the operation difficulty of the steel cable threading and the pull plate arrangement is increased, if the pipe segment is fractured during the test, the fractured part will quickly fall off if lacking support, the suspension of the lifting appliance to the pipe segment loses balance and tilts, the damaged pipe segment collides with the ground or the support frame, and the experimental site is damaged, and even a safety accident is caused.

[0005] The application provides a special lifting appliance for a rectangular top pipe section experimental support frame, which specifically comprises: a compression resistance experimental support frame, a steel cable pull plate connected to the outer side of the compression resistance experimental support frame through a steel cable, four branch support frames fixedly connected to the upper side of the compression resistance experimental support frame, a branch lifting mechanism fixedly connected to the middle of the side of the branch support frame away from the center of the compression resistance experimental support frame, a lifting support frame connected to the lower side of the branch lifting mechanism, a lifting support beam connected to the bottom of the lifting support frame through bolts, a directional guide rod fixedly connected to the outer side of the branch support frame, the directional guide rod being perpendicular to the upper surface of the compression resistance experimental support frame, the lower end of the directional guide rod being fixedly connected to the support leg of the compression resistance experimental support frame, one lifting support platform welded to each end of the lifting support beam, the directional guide rod being movably connected to the rear side of the lifting support platform, a movable support platform movably arranged on the upper side of the lifting support platform, a transverse support cylinder rotatably connected to the upper surface of the movable support platform, and the axis of the transverse support cylinder being perpendicular to the end surface of the movable support platform away from the compression resistance experimental support frame.

[0006] Further, one support platform guide opening slidably connected to the directional guide rod is formed in the end of the lifting support platform close to the center of the compression resistance experimental support frame, and the lifting support platform is parallel to the upper surface of the compression resistance experimental support frame.

[0007] Further, side limiting flanges are arranged on the upper edges of the two side surfaces of the lifting support platform, support platform limiting side edges are fixedly connected to the two side surfaces of the movable support platform, and the side limiting flanges are slidably connected inside the support platform limiting side edges.

[0008] Further, a limiting wheel track is formed in the upper surface of the lifting support platform, front and rear support cylinders are rotatably connected to the lower surface of the movable support platform, the axis of the front and rear support cylinders is parallel to the side surface of the movable support platform, and the front and rear support cylinders are rollingly connected inside the limiting wheel track.

[0009] Further, one side edge guide frame is fixedly connected to each side of the lifting support platform, and a rectangular guide opening is longitudinally formed in the inner side of each side edge guide frame.

[0010] Further, a stable support frame is arranged below the lifting support platform, the stable support frame has a U-shaped structure, and the two side connecting plates of the stable support frame are slidably connected to the guide openings in the inner sides of the two side edge guide frames.

[0011] Further, a lifting support plate is fixedly connected to the top of the stable support frame, the lifting support plate is arranged above the side edge guide frame, and the lifting support plate is parallel to the upper surface of the movable support platform.

[0012] Further, a screw push cylinder is arranged on the lower surface of the lifting support platform through bolts, the push rod of the screw push cylinder is perpendicular to the end surface of the lifting support platform away from the compression resistance experimental support frame, a reset push block is fixedly connected to the front end of the push rod of the screw push cylinder, the reset push block is a triangular block, and the inclined surface of the reset push block faces obliquely downward.

[0013] Further, the inside bottom of the stable support frame is fixedly connected with a wedge-shaped support wedge, the inclined surface of the support wedge is inclined upward, and the inclined surface of the support wedge is in sliding connection with the reset push block.

[0014] Further, the lower surface of the lifting support table is fixedly connected with two brake extension springs, and the lower end of the brake extension spring is fixedly connected with the inside bottom surface of the stable support frame.

[0015] The application provides a special lifting appliance for a rectangular top pipe joint experiment support frame, and has the following beneficial effects:

[0016] The special lifting appliance for the rectangular top pipe joint in the application is used for strength test experiment of the rectangular top pipe joint, is combined in the compression experiment support frame, and supports the pipe joint through the multiple-directionally distributed rectangular top pipe joint unit type lifting appliances, improves the suspension stability of the rectangular top pipe joint, adjusts the height of the pipe joint through the cooperation of the directional lifting mechanism and the lifting hanger, so that the pipe joint is located at a suitable height for the threading and installation of the pull plate and the steel cable, and through the guiding effect of the hanger connecting beam and the directional guide rod, the lifting support table and the movable support table can be prevented from shaking, the pipe joint is supported through the cooperation of the lifting support table and the movable support table, the shaking of the pipe joint in the suspended state is reduced, and the stability of the support frame in the test process is further improved.

[0017] In addition, the pipe joint is supported from multiple points through multiple groups of lifting support tables and movable support tables, when the compression strength test is carried out, if the pipe joint is locally fractured under the action of pressure, the fractured part can be supported through the support structure composed of the lifting support table and the movable support table below, so as to avoid falling, the remaining part of the pipe joint is also supported through the support structure composed of multiple groups of lifting support tables and movable support tables, so as to avoid the pipe joint from being broken and falling out of balance, avoid damage to the test site and test equipment, and avoid causing safety accidents.

[0018] Furthermore, through the cooperation of the screw push cylinder and the stable support frame, in normal state, the screw push cylinder is in an extended state, the reset push block is separated from the support frame wedge table, the stable support frame is pushed upward under the tension of the brake spring, when the pipe section is suspended through the lifting support table and the movable support table, the lower surface of the pipe section is attached to the upper surface of the lifting support plate, and under the action of gravity, the stable support frame is pressed downward, at the same time, the lower surface of the pipe section is connected with the horizontal support cylinder in rolling connection, at this time, through the attachment of the support frame wedge table and the pipe section, the friction force of the pipe section above the movable support table is increased, so that the pipe section is stably placed above the movable support table, in this state, the pipe section is stably placed, the steel cable and the pull plate can be connected, during the compression strength test, the screw push cylinder is controlled to push the reset push block outward, under the pushing action of the reset push block and the inclined surface of the support frame wedge table, the stable support frame is moved downward, the support frame wedge table is separated from the lower surface of the pipe section, the pipe section is connected with the horizontal support cylinder in rolling connection, at the same time, the front and rear support cylinders are connected with the limiting wheel rail in rolling connection, so that the pipe section is stably supported in the vertical direction and flexibly floats in the horizontal direction, which can be adjusted according to the deformation of the pipe section during the test, so as to reduce the influence of friction on the test result. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings described in the following description only relate to some embodiments of the present application, and are not a limitation of the present application.

[0021] In the drawings:

[0022] Figure 1 The schematic diagram of the overall structure of the present application for pipe section strength test is shown;

[0023] Figure 2 The schematic diagram of the top view structure of the present application is shown;

[0024] Figure 3 The schematic diagram of the front view structure of the present application is shown;

[0025] Figure 4 The schematic diagram of the pipe section dismounting structure of the present application is shown;

[0026] Figure 5 The schematic diagram of the single set of lifting appliance structure of the present application is shown;

[0027] Figure 6 The schematic diagram of the rear structure of the present application is shown; Figure 5

[0028] Figure 7 The schematic diagram of the lifting support table and the movable support table separation structure of the present application is shown;

[0029] Figure 8 The schematic diagram of the​Figure 7 Structure diagram of the bottom perspective view of the application;

[0030] Figure 9 Structure diagram of the application when the reset push block cooperates with the support wedge;

[0031] Figure 10 Structure diagram of the application when the stable support is in the down state.

[0032] Reference signs:

[0033] 1, compression-resistant experimental support frame; 101, steel cable pull plate; 2, split-direction connecting frame; 201, directional guide rod; 3, split-direction lifting mechanism; 4, lifting support frame; 5, support frame connecting beam; 6, lifting support platform; 601, support platform guide opening; 602, side limiting flange; 603, limiting wheel track; 604, side guide frame; 605, brake tension spring; 7, movable support platform; 701, support platform limiting side edge; 702, transverse support cylinder; 703, front and rear support cylinders; 8, screw push cylinder; 801, reset push block; 9, stable support frame; 901, support wedge; 902, lifting support plate. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the application more clear, the technical solutions of the embodiments of the application will be clearly and completely described below in combination with the drawings of the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, rather than all the embodiments. Based on the described embodiments of the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0035] Embodiment one: please refer to Figures 1 to 10 :

[0036] The application provides a special lifting appliance for a rectangular top pipe joint experiment support frame, which comprises a compression experiment support frame 1, a steel cable pull plate 101 connected to the outside of the compression experiment support frame 1 through a steel cable, four branch connecting frames 2 fixedly connected to the upper side of the compression experiment support frame 1, a branch lifting mechanism 3 fixedly connected to the middle of one side of the branch connecting frame 2 away from the center of the compression experiment support frame 1, a lifting hanger 4 connected to the lower side of the branch lifting mechanism 3, a hanger connecting beam 5 connected to the bottom of the lifting hanger 4 through bolts, a directional guide rod 201 fixedly connected to the outside of the branch connecting frame 2, the directional guide rod 201 being perpendicular to the upper surface of the compression experiment support frame 1, the lower end of the directional guide rod 201 being fixedly connected to the supporting leg of the compression experiment support frame 1, one lifting support 6 welded to each end of the hanger connecting beam 5, the directional guide rod 201 being movably connected to the rear side of the lifting support 6, a movable support 7 movably installed on the upper side of the lifting support 6, a transverse supporting cylinder 702 rotatably connected to the upper surface of the movable support 7, and the axis of the transverse supporting cylinder 702 being perpendicular to the end surface of the movable support 7 away from the compression experiment support frame 1. Through the cooperation of the branch lifting mechanism 3 and the lifting hanger 4, the hanger connecting beam 5 and the lifting support 6 can be lifted, the height of the rectangular top pipe joint above the movable support 7 can be adjusted, the pipe joint can be suspended, the pipe joint can be connected to and surrounded by the steel cable of the compression experiment support frame 1, the pipe joint can be prevented from violently shaking under the action of external force during the suspension process, if the pipe joint is locally fractured under the action of pressure, the fractured part can be supported by the supporting structure formed by the lifting support 6 and the movable support 7 below the pipe joint, the pipe joint can be prevented from falling, the remaining part of the pipe joint can also be supported by the supporting structure formed by multiple sets of lifting supports 6 and movable supports 7, the pipe joint can be prevented from falling off due to the fracture and losing balance, and the test site and test equipment can be prevented from being damaged.

[0037] In the embodiment of the present disclosure, one end of the lifting support 6 close to the center of the compression experiment support frame 1 is provided with a support guide opening 601 slidably connected with the directional guide rod 201, the lifting support 6 is parallel to the upper surface of the compression experiment support frame 1, and plays a guiding role, so that the lifting support 6 can be prevented from shaking the movable support 7 due to the action of external force, and the movable support 7 and the pipe joint can be vertically lifted and lowered by the cooperation of the branch lifting mechanism 3 and the lifting hanger 4.

[0038] In the embodiment of the present disclosure, the upper edges of the two side surfaces of the lifting support 6 are provided with side limiting flanges 602, the two side surfaces of the movable support 7 are fixedly connected with support limiting side edges 701, and the side limiting flanges 602 are slidably connected inside the support limiting side edges 701, so as to play a guiding role and simultaneously prevent the lifting support 6 and the movable support 7 from being affected by external force and separated.

[0039] In the embodiments of the present disclosure, the upper surface of the lifting support table 6 is provided with a limiting wheel rail 603, the lower surface of the movable support table 7 is rotationally connected with a front and rear support cylinder 703, the axis of the front and rear support cylinder 703 is parallel to the side surface of the movable support table 7, and the front and rear support cylinder 703 is rollingly connected inside the limiting wheel rail 603, thereby playing a guiding role, making the movable support table 7 more flexible in movement above the lifting support table 6, and preventing the orientation of the pipe joint from being locked above the support structure due to its own gravity, thereby reducing the influence of friction on the detection accuracy during the test.

[0040] Two side edge guide frames 604 are fixedly connected to the two sides of the lifting support table 6, respectively, and a rectangular guide opening is longitudinally formed in the interior of each side edge guide frame 604. A stable support frame 9 is arranged below the lifting support table 6, and the stable support frame 9 has a "U" shaped structure. The two side plates of the stable support frame 9 are slidingly connected to the guide openings in the interiors of the two side edge guide frames 604, respectively. A lifting support plate 902 is fixedly connected to the top of the stable support frame 9, and the lifting support plate 902 is located above the side edge guide frame 604. The lifting support plate 902 is parallel to the upper surface of the movable support table 7. A screw push cylinder 8 is mounted on the lower surface of the lifting support table 6 by means of bolts. The push rod of the screw push cylinder 8 is perpendicular to the end face of the lifting support table 6 away from the compression resistance experiment support frame 1. A reset push block 801 is fixedly connected to the front end of the push rod of the screw push cylinder 8. The reset push block 801 is a triangular block, and the inclined surface of the reset push block 801 faces the obliquely downward direction. A wedge-shaped support frame wedge table 901 is fixedly connected to the interior bottom of the stable support frame 9. The inclined surface of the support frame wedge table 901 faces the obliquely upward direction, and the inclined surface of the support frame wedge table 901 is slidingly connected to the reset push block 801. Two brake extension springs 605 are fixedly connected to the lower surface of the lifting support table 6, and the lower ends of the brake extension springs 605 are fixedly connected to the interior bottom surface of the stable support frame 9. Through the cooperation of the screw push cylinder 8 and the stable support frame 9, in the normal state, the screw push cylinder 8 is in an extended state, the reset push block 801 is separated from the support frame wedge table 901, and the stable support frame 9 is pushed upward by the pulling force of the brake extension spring 605. When the pipe section is suspended by the lifting support table 6 and the movable support table 7, the lower surface of the pipe section is attached to the upper surface of the lifting support plate 902, and the stable support frame 9 is pressed downward under the action of gravity. At the same time, the lower surface of the pipe section is rollingly connected to the transverse support cylinder 702. At this time, through the attachment of the support frame wedge table 901 and the pipe section, the friction force of the pipe section above the movable support table 7 is increased, so that the pipe section is stably placed above the movable support table 7. In this state, the pipe section is stably placed, the operation of the rope and the pull plate can be performed, and in the process of the compression resistance test experiment, the screw push cylinder 8 is controlled to push the reset push block 801 outward. Under the pushing and jacking action of the inclined surface of the reset push block 801 and the support frame wedge table 901, the stable support frame 9 is moved downward, the support frame wedge table 901 is separated from the lower surface of the pipe section, the pipe section is rollingly connected to the transverse support cylinder 702, and the front and rear support cylinders 703 are rollingly connected to the limiting wheel rails 603. In this way, the pipe section is stably supported in the vertical direction, and at the same time, it is flexibly floated in the horizontal direction, so that it can be fine-tuned according to the pulling deformation of the pipe section in the detection experiment, and the influence of the friction force on the test result is reduced.

[0041] The working principle of the embodiment is as follows: first, the rectangular jacking pipe section is hoisted to the top of the compression test support frame 1 by the external hoisting device, and then the pipe section is stably lowered to be stably supported by the supporting structure composed of multiple groups of lifting support tables 6 and movable support tables 7 around the compression test support frame 1. At this time, the wedge table 901 of the support frame is extruded downward under the weight of the pipe section, so that the brake tension spring 605 is stretched. The lower surface of the pipe section is connected with the horizontal support cylinder 702 by rolling, and is tightly attached to the wedge table 901 of the support frame. The pipe section is stably placed above the supporting structure through the friction between the wedge table 901 of the support frame and the lower surface of the pipe section. The height of the jacking pipe section can be adjusted by controlling the split lifting mechanism 3 to adjust the height of the lifting hanger 4. The steel cable pull plate 101 is connected to the compression test support frame 1 through a steel cable, so that the steel cable pull plate 101 is tightly attached to the outer surface of the pipe section. The steel cable is connected to a tension machine. After the steel cable pull plate 101 is laid out, the reset push block 801 is pushed outward by controlling the screw push cylinder 8. Under the action of the inclined surface of the reset push block 801 and the wedge table 901 of the support frame, the stable support frame 9 moves downward, the wedge table 901 of the support frame is separated from the lower surface of the pipe section, the pipe section is connected with the horizontal support cylinder 702 by rolling, and the front and rear support cylinders 703 are connected with the limiting wheel rails 603 by rolling. The pipe section can be flexibly moved in the front, rear, left and right directions while being stably supported in the vertical direction. The steel cable connected to the steel cable pull plate 101 is retracted by controlling the tension machine, so that the steel cable pull plate 101 moves towards the compression test support frame 1 and exerts pressure. The size of the pressure is recorded when the pipe section deforms under the action of the pressure. If the pipe section is broken or crushed during the test, the broken part is still supported by the supporting structure composed of the lifting support tables 6 and the movable support tables 7 below, so as to avoid falling and damage to the test site and test equipment caused by the imbalance of the pipe section due to the local loss caused by the rupture. After the test is completed, the steel cable pull plate 101 is removed, and the rectangular jacking pipe section is hoisted and transferred by the external hoisting device.

[0042] In this paper, the following points need to be noted:

[0043] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can be referred to the general design.

[0044] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0045] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A special lifting device for a rectangular pipe jacking section experimental support frame, comprising: A compression test support frame (1), wherein the compression test support frame (1) is connected to a steel cable pull plate (101) via a steel cable, and is characterized in that four directional connecting frames (2) are fixedly connected above the compression test support frame (1), a directional lifting mechanism (3) is fixedly connected to the middle of a side of the directional connecting frame (2) away from the center of the compression test support frame (1), a lifting hanger (4) is connected below the directional lifting mechanism (3), and the bottom of the lifting hanger (4) is connected to a hanger connecting beam (5) via bolts, and the directional connecting frame (2) is fixedly connected to the top of the compression test support frame (1), and a lifting hanger (4) is fixedly connected to the bottom of the lifting hanger (4) via a bolt. ) is fixedly connected to a directional guide rod (201) outside the support frame (1), the directional guide rod (201) is perpendicular to the upper surface of the compression test support frame (1), the lower end of the directional guide rod (201) is fixedly connected to the support leg of the compression test support frame (1), and a lifting support platform (6) is welded to each end of the hanger connecting beam (5), the rear of the lifting support platform (6) is movably connected to the directional guide rod (201), and a movable support platform (7) is movably installed above the lifting support platform (6), and the upper surface of the movable support platform (7) is rotatably connected to a horizontal support tube (702), and the horizontal support tube (702) is rotatably connected to the upper surface of the horizontal support tube (702). ) axis is perpendicular to the end face of the movable support (7) away from the compression test support frame (1), and the two sides of the lifting support (6) are respectively fixedly connected with a side guide frame (604), and a rectangular guide opening is longitudinally opened inside the side guide frame (604). A stable support frame (9) is provided below the lifting support (6), and the stable support frame (9) is a "U"-shaped structure. The connecting plates on both sides of the stable support frame (9) are respectively slidably connected to the internal guide openings of the side guide frames (604) on both sides. The lower surface of the lifting support (6) is installed with a spiral push cylinder (8) by bolts. The push rod of the spiral push cylinder (8) is perpendicular to the end face of the lifting support (6) away from the compression test support frame (1), and the front end of the push rod of the spiral push cylinder (8) is fixedly connected with a reset push block (801), and the reset push block (801) is a triangular block, and the inclined surface of the reset push block (801) faces obliquely downward. The inner bottom of the stable support frame (9) is fixedly connected with a support wedge platform (901) with a wedge structure, and the inclined surface of the support wedge platform (901) faces obliquely upward. The inclined surface of the support wedge platform (901) is slidably connected to the reset push block (801).

2. A special hanger for a rectangular pipe jacking section experimental support frame according to claim 1, characterized in that: One end of the lifting support platform (6) close to the center of the compression test support frame (1) is provided with a support platform guide opening (601) slidably connected to the directional guide rod (201), and the lifting support platform (6) is parallel to the upper surface of the compression test support frame (1).

3. The special lifting device for rectangular pipe jacking section test support frame according to claim 1 is characterized in that: The upper edges of both side surfaces of the lifting support platform (6) are provided with side limiting flanges (602), and the two side surfaces of the movable support platform (7) are fixedly connected with support platform limiting side edges (701), and the side limiting flanges (602) are slidably connected inside the support platform limiting side edges (701).

4. A special hanger for a rectangular pipe jacking section experimental support frame according to claim 3, characterized in that: The upper surface of the lifting support platform (6) is provided with a limiting wheel track (603), and the lower surface of the movable support platform (7) is rotatably connected to the front and rear support cylinders (703), the axes of the front and rear support cylinders (703) are parallel to the side surfaces of the movable support platform (7), and the front and rear support cylinders (703) are rollingly connected inside the limiting wheel track (603).

5. The special lifting device for rectangular pipe jacking section test support frame according to claim 1 is characterized in that: The top of the stable support frame (9) is fixedly connected to a lifting support plate (902), the lifting support plate (902) is located above the side guide frame (604), and the lifting support plate (902) is parallel to the upper surface of the movable support platform (7).

6. The special hanger for rectangular pipe jacking section test support frame according to claim 1, characterized in that: Two braking springs (605) are fixedly connected to the lower surface of the lifting support platform (6), and the lower ends of the braking springs (605) are fixedly connected to the inner bottom surface of the stabilizing support frame (9).

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