Middle supporting tool for deep foundation pit supporting and using method

Abstract

According to the middle supporting tool for deep foundation pit supporting and the using method, through the arranged middle support and the two adjustable jacking parts, the middle supporting tool can be suitable for supporting of deep foundation pit structures of different sizes and can be repeatedly used, the problems of mounting and dismounting of the middle support for deep foundation pit supporting are solved, the construction quality is guaranteed, and the construction period is shortened. The construction progress is improved, the construction risk is reduced, tools are repeatedly used for the middle support of the foundation pit support, and the construction quality and safety can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of deep foundation pit construction, and in particular, to an intermediate support tool for deep foundation pit support and a using method thereof. Background Art

[0002] Taking the water drainage improvement project of the flood drainage ditch in the Energy and Environment Department of Zhanjiang Iron and Steel as an example, the calculated excavation area of this project is small and the construction period is tight. Therefore, a steel waling combined with steel pipe support without maintenance is adopted, and the intermediate support uses a steel pipe of φ609*16. During the installation construction of the steel pipe support, it is found that after the support is placed on the pre-installed bracket, the distances between the two ends of the support and the support waling cannot be effectively controlled, and it is not easy to carry out welding. During the construction of the important process of replacing the support, when the lower temporary support members have been installed and the intermediate support has been cut and is ready for hoisting and demolition, it is difficult to demolish the support due to the inward extrusion of the soil pressure on the east and west sides. Based on the problems brought by the support in the above construction, therefore, a deep foundation pit support and an intermediate support reusable tool are needed to solve the above problems. Summary of the Invention

[0003] In view of this, on the one hand, the present invention provides an intermediate support tool for deep foundation pit support, including:

[0004] An intermediate support, which includes a plurality of sequentially connected support plates, and two adjacent support plates are sequentially connected together through a provided connecting seat;

[0005] Two adjustable jacks, the adjustable jack includes a buckle and an adjusting member, the first end of the adjusting member is connected to the buckle, the second end is connected to the end of the intermediate support, the buckle is used to clamp the waling of the support structure, and the length of the adjusting member is adjustable.

[0006] Further, the buckle is a U-shaped buckle, which is convenient for clamping the waling.

[0007] Further, the adjusting member includes a threaded rod and a support, the first end of the threaded rod is connected to the buckle, the second end can be inserted into the end of the intermediate support, a threaded hole corresponding to the threaded rod is provided in the middle of the support, and the support can be screwed onto the threaded rod through the threaded hole, and the support can support the end of the intermediate support.

[0008] Further, jack holes corresponding to the threaded rods are provided on the intermediate support, and the second end of the threaded rod can be inserted into the jack holes.

[0009] Further, a through slot with a preset length is provided at the second end of the threaded rod. The through slot is arranged along the length direction of the threaded rod and penetrates through the cross-section of the threaded rod. Corresponding to the through slot, a clamping rod is arranged in the jack. Both ends of the clamping rod are perpendicular to the hole wall of the jack. When the threaded rod is inserted into the jack, the clamping rod can be clamped in the through slot.

[0010] Further, the connecting seat includes a backing plate and bolts; a plurality of screw holes are correspondingly provided on the backing plate and the support plate. The bolts are screwed into the screw holes on the backing plate and the support plate, so as to connect the adjacent support plates together.

[0011] Further, the support plate is an H-shaped steel, and the connecting seat is connected to the upper and lower flanges of the H-shaped steel.

[0012] Further, the backing plate is a connecting steel plate.

[0013] On the other hand, the present invention also proposes a usage method of an intermediate support tool for deep foundation pit support, including:

[0014] Step 1: Prepare materials. Use profiled steel as the support plate, match it according to the width of the support structure of the project, and prepare bolts and connecting steel plates as the connecting seat, and prepare adjustable jacks.

[0015] Step 2: Processing and manufacturing. The profiled steel is processed into multiple sections with a preset length. A plurality of screw holes are processed on the left and right sides of the upper and lower flanges. Use bolts and connecting steel plates for connection and assembly. The profiled steel arranged at both ends of the intermediate support is processed into a connection structure with the adjustable jack and connected to the adjustable jack.

[0016] Step 3: Installation of the support tool. Lift the support tool, fix the buckles of the adjustable jacks at both ends to the collar of the on-site support structure, and place it on the support frame that has been welded at the construction site. Adjust the adjustable jack to make the buckle closely combine with the collar.

[0017] Step 4: Removal of the support tool. Enclose the support tool and remove it. Adjust the adjustable jack to separate the joint between the buckle and the collar. Lift the support tool away, and then it can be reused.

[0018] Further, the profiled steel is a 500X300X11X18 H-shaped steel, and each 3 meters forms a support plate.

[0019] An intermediate support tool and a usage method for deep foundation pit support provided by the present invention have the following advantages: By setting an intermediate support and two adjustable jacks, it can be applied to the support of deep foundation pit structures of different sizes, can be reused, solves the problems of installation and removal of the intermediate support for deep foundation pit support, ensures the construction quality, improves the construction progress, reduces the construction risk, and the intermediate support reuse tool for foundation pit support can ensure the construction quality and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the support tool provided by the embodiment of the present invention;

[0022] Figure 2 It is a top view structural schematic diagram of the support tool provided by the embodiment of the present invention;

[0023] Figure 3 It is a side view structural schematic diagram of the support tool provided by the embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the usage state of the support tool provided by the embodiment of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the adjustable jack provided by the embodiment of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the adjusting member provided by the embodiment of the present invention;

[0027] Figure 7 It is a usage method of the intermediate support tool for deep foundation pit support provided by the embodiment of the present invention;

[0028] 1. Intermediate support, 2. Adjustable jack, 3. Waling beam, 4. Screw hole;

[0029] 11. Support plate, 12. Connecting seat, 121. Spacer plate, 122. Bolt, 13. Jacking hole, 14. Locking bar, 21. Snap fastener, 22. Adjusting member, 221. Threaded rod, 222. Support cup, 223. Through slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0031] Referring to Figures 1-6 As shown, it is an intermediate support tool for deep foundation pit support disclosed in an embodiment of the present invention, including an intermediate support 1 and two adjustable jacks 2; the intermediate support 1 includes a plurality of sequentially connected support plates 11, and two adjacent support plates 11 are sequentially connected together through a provided connecting seat 12; the adjustable jack 2 includes a buckle 21 and an adjusting member 22, the first end of the adjusting member 22 is connected to the buckle 21, the second end is connected to the end of the intermediate support 1, the buckle 21 is used to clamp the collar 3 of the support structure, and the length of the adjusting member 22 is adjustable.

[0032] In this embodiment, referring to Figure 2 、 3 、5 as shown, the buckle 21 is a U-shaped buckle, which is convenient for clamping the collar 3.

[0033] Referring to Figure 2 、 3 、5、6 as shown, the adjusting member 22 includes a threaded rod 221 and a clamping bracket 222. The first end of the threaded rod 221 is connected to the buckle 21, the second end can be inserted into the end of the intermediate support 1. A threaded hole corresponding to the threaded rod 221 is provided in the middle of the clamping bracket 222, and the clamping bracket 222 can be screwed onto the threaded rod 221 through the threaded hole. The clamping bracket 222 can support the end of the intermediate support 1. By screwing to adjust the position of the clamping bracket 222 on the threaded rod 221, the distance between the intermediate support 1 and the buckle 21 can be adjusted, thereby changing the length of the entire intermediate support tool and being applicable to the support of deep foundation pit structures of more sizes.

[0034] Referring to Figure 5 as shown, a jack hole 13 corresponding to the threaded rod 221 is provided on the intermediate support 1, and the second end of the threaded rod 221 can be inserted into the jack hole 13.

[0035] Referring to Figures 5-6As shown, a through slot 223 with a preset length is provided at the second end of the threaded rod 221. The through slot 223 is arranged along the length direction of the threaded rod 221 and penetrates through the cross-section of the threaded rod 221. Corresponding to the through slot 223, a clamping rod 14 is provided in the jack 13. Both ends of the clamping rod 14 are perpendicular to the wall of the jack 13. When the threaded rod 221 is inserted into the jack 13, the clamping rod 13 can be clamped in the through slot 223. By providing the clamping rod and the through slot, the stability of the threaded rod in the jack is increased.

[0036] Referring to Figures 1-4 As shown, the connecting seat 12 includes a backing plate 121 and bolts 122; a plurality of screw holes 4 are correspondingly provided on the backing plate 121 and the support plate 11. The bolts 122 are screwed into the screw holes 4 on the backing plate 121 and the support plate 11, so as to connect the adjacent support plates 11 together. The use of the backing plate and bolts has a simple structure and can flexibly connect multiple support plates in sequence, so as to set intermediate supports with different lengths.

[0037] In this embodiment, the support plate 11 is an H-shaped steel, and the connecting seat 12 is connected to the upper and lower flanges of the H-shaped steel.

[0038] In this embodiment, the backing plate 121 is a connecting steel plate.

[0039] The embodiment of the present invention also discloses a usage method of an intermediate support tool for deep foundation pit support, including:

[0040] Step 1: Prepare materials. Use profiled steel as the support plate, match according to the width of the support structure of the project, and prepare bolts and connecting steel plates as the connecting seat, and prepare adjustable jacks;

[0041] Step 2: Processing and manufacturing. The profiled steel is processed into multiple sections with a preset length. A plurality of screw holes are processed on the left and right sides of the upper and lower flanges. Use bolts and connecting steel plates for connection and assembly. The profiled steel at both ends of the intermediate support is processed into a connection structure with the adjustable jack and connected to the adjustable jack;

[0042] Step 3: Installation of the support tool. Lift the support tool so that the buckles of the adjustable jacks at both ends fix the collar of the on-site support structure and are seated on the support frames that have been welded on the construction site. Adjust the adjustable jacks so that the buckles are tightly combined with the collar;

[0043] Step 4: Removal of the support tool. Put a sleeve on the support tool and remove it. Adjust the adjustable jacks to separate the joints where the buckles are combined with the collar. Lift the support tool away, and then it can be reused.

[0044] Further, the profiled steel is 500X300X11X18 H-shaped steel, and each 3 meters forms a support plate.

[0045] The preferred embodiments of the usage method of the intermediate support tool disclosed in the present invention are as follows:

[0046] Step 1. Main materials

[0047] The main structure adopts a 500X300X11X18 H-shaped steel, which is matched according to the width of the support structure of the project. The supporting equipment includes bolts, adjustable top supports, and connecting steel plates.

[0048] Step 2. Processing and manufacturing

[0049] 1. First, process the 500X300X11X18 H-shaped steel. The initial length of the H-shaped steel is processed into one section every 3 meters. At the connection of every two sections, two assembly holes are processed on each of the upper and lower flanges on both the left and right sides.

[0050] 2. The adjustable top supports at both ends of the support tool fix the position of the collar, and select the corresponding steel plate to be processed into a buckle shape.

[0051] 3. Connect 8 adjustable top supports at both ends of the support reuse tool.

[0052] Step 3. Before equipment assembly, confirm the width of the support structure at the construction site to facilitate the assembly of the intermediate support reuse tool. The assembly sequence is as follows:

[0053] 1. Assemble the main section steel of one section every 3 meters, and make the support tools of every two sections butt-joint smoothly;

[0054] 2. Install the connecting steel plate and fasten it with bolts;

[0055] 3. Connect the bolts at both ends of the support tool with the buckle;

[0056] Step 4. Installation of the support tool

[0057] 1. Use a crane to lift the support reuse tool, so that the buckles at both ends fix the collar of the on-site support structure and are located on the support frame that has been welded at the construction site.

[0058] 2. Adjust the adjustable top supports at both ends of the tool so that the buckle and the collar are tightly combined and do not fall off.

[0059] Step 5. Demolition of the support tool

[0060] 1. After the crane is in position, let the crane wire rope sleeve the support tool to ensure safety during its demolition.

[0061] 2. Adjust the adjustable top support to separate the joint between the buckle and the collar, and use the crane to lift the support tool away. The main section steel of one section every 3 meters can not be disassembled and can be reused.

[0062] In summary, the intermediate support tool and its usage method for deep foundation pit support provided by the embodiments of the present invention have beneficial technical effects: by setting the intermediate support and two adjustable jacks, it can be applied to the support of deep foundation pit structures of different sizes, can be reused, solves the problems of installation and removal of the intermediate support for deep foundation pit support, ensures the construction quality, improves the construction progress, reduces the construction risk, and the tool for reusing the intermediate support of the foundation pit support can ensure the construction quality and safety.

[0063] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0064] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0065] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. An intermediate support tool for deep foundation pit support, characterized in that, Including: An intermediate support, which includes a plurality of support plates connected in sequence, and two adjacent support plates are connected together in sequence through a set connecting seat; Two adjustable jacks, the adjustable jack includes a buckle and an adjusting member, the first end of the adjusting member is connected to the buckle, the second end is connected to the end of the intermediate support, the buckle is used to clamp the purlin of the support structure, and the length of the adjusting member is adjustable.

2. The intermediate support tool for deep foundation pit support according to claim 1, characterized in that, The buckle is a U-shaped buckle, which is convenient for clamping the purlin.

3. The intermediate support tool for deep foundation pit support according to claim 1, characterized in that The adjusting member includes a threaded rod and a support, the first end of the threaded rod is connected to the buckle, the second end can be inserted into the end of the intermediate support, a threaded hole corresponding to the threaded rod is provided in the middle of the support, and the support can be screwed onto the threaded rod through the threaded hole, and the support can support the end of the intermediate support.

4. The intermediate support tool for deep foundation pit support according to claim 3, characterized in that, A jack hole corresponding to the threaded rod is provided on the intermediate support, and the second end of the threaded rod can be inserted into the jack hole.

5. The intermediate support tool for deep foundation pit support according to claim 4, characterized in that, The second end of the threaded rod is provided with a through slot of a preset length, the through slot is arranged along the length direction of the threaded rod and penetrates through the cross section of the threaded rod, corresponding to the through slot, a clamping rod is provided in the jack hole, both ends of the clamping rod are perpendicular to the hole wall of the jack hole, and when the threaded rod is inserted into the jack hole, the clamping rod can be clamped in the through slot.

6. The intermediate support tool for deep foundation pit support according to claim 1, characterized in that, The connecting seat includes a backing plate and a bolt; a plurality of screw holes are correspondingly provided on the backing plate and the support plate, and the bolt is screwed through the screw holes on the backing plate and the support plate to connect the adjacent support plates together.

7. The intermediate support tool for deep foundation pit support according to claim 1, characterized in that, The support plate is an H-shaped steel, and the connecting seat is connected to the upper and lower flanges of the H-shaped steel.

8. The intermediate support tool for deep foundation pit support according to claim 1, wherein The backing plate is a connecting steel plate.

9. A method for using an intermediate support tool for deep foundation pit support, characterized in that Including: Step 1, Prepare materials, use section steel as the support plate, match according to the width of the support structure of the project, prepare bolts and connecting steel plates as the connecting seat, and prepare adjustable jacks; Step 2, Processing and manufacturing, the section steel is processed into multiple sections with a preset length, a plurality of screw holes are processed on the left and right sides of the upper and lower flanges, bolts and connecting steel plates are used for connection and assembly, and the section steel at both ends of the intermediate support is processed into a connection structure with the adjustable jack and the adjustable jack is connected; Step 3, Installation of support tools, lift the support tools, make the buckles of the adjustable jacks at both ends fix the purlins of the on-site support structure, and sit on the completed welded support frame at the construction site, and adjust the adjustable jack to make the buckle closely combine with the purlin; Step 4, Removal of support tools, put a sleeve on the support tools and remove them, adjust the adjustable jack to separate the joint between the buckle and the purlin, lift the support tools away, and then they can be reused.

10. The method of using the intermediate support tool for deep foundation pit support according to claim 9, characterized in that, characterized in that, The section steel is 500X300X11X18 H-shaped steel, and each 3 meters forms a support plate.

Images