Detachable and recyclable support seat for shield reaction force frame

Abstract

The utility model relates to a detachable and cyclically used shield counterforce frame support seat, and relates to the construction of a shield counterforce frame support seat. The utility model discloses a support seat body, the support seat body is provided with a plurality of and is arranged at intervals on the station bottom plate; a plurality of sunken parts are arranged at intervals on the upper end surface of the station bottom plate, and the support seat body is arranged in the sunken parts; the support seat body comprises an outer steel plate and a plurality of inner steel ribs, the outer steel plate is in the shape of a horizontal prism, and the plurality of inner steel ribs are arranged at intervals in the outer steel plate; the support seat body and the shield counterforce frame are connected by a counterforce frame support steel pipe, one end of the counterforce frame support steel pipe is connected to the outer wall of the outer steel plate close to the shield counterforce frame, and the other end is connected to the shield counterforce frame. The utility model is simple in construction, short in construction period, simple in structure and operation, low in construction risk, avoids damaging the existing structure, thereby ensuring the integrity and stability of the existing structure, and is safe and economical.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine support technology, specifically to a detachable and reusable tunnel reaction frame support. Background Technology

[0002] In the current field of tunnel boring machine (TBM) construction, reaction force measures are usually required during the TBM launch phase to ensure smooth construction. The traditional approach is to connect the steel pipes of the reaction force device to the main reinforcement of the base slab before the TBM launch, and then pour the reaction force device simultaneously with the base slab concrete. While this method seems to provide stable reaction force support for the TBM launch, it has revealed many drawbacks in actual operation, as follows:

[0003] First, from the perspective of construction procedures, this method is extremely complicated. It requires careful planning of the connection between the steel pipe and the base plate and the pouring work in the early stage. After the shield tunneling is launched, the reaction steel pipe needs to be cut off. Furthermore, the pouring makes the reaction device unusable. What is more complicated is that special structural repair and waterproofing treatment are required for the location where the steel pipe is cut off in the base plate. This undoubtedly greatly increases the workload and difficulty of construction.

[0004] Secondly, since special structural repairs are required on the base plate after the steel pipes are cut off, the stress on the cut section becomes complex and difficult to control precisely. At the same time, the waterproofing effect is often unsatisfactory, and problems such as leakage are prone to occur, posing potential risks to subsequent engineering use.

[0005] Furthermore, this traditional construction method is also accompanied by significant construction risks. During the tunnel boring machine's initiation, excessive stress can easily damage the base structure and its waterproofing layer. This not only affects the smooth progress of the current construction but may also trigger a series of chain reactions, severely impacting the quality and schedule of the entire project.

[0006] Finally, traditional methods also have the problem of long construction periods. The complicated construction procedures and special treatment of the cut-off parts make the entire construction process time-consuming, which cannot meet the requirements of modern engineering construction for high efficiency and speed.

[0007] Therefore, there is an urgent need for a shield reaction frame support device that has a simple construction process, can be reused, is easy to operate, has low construction risk, and has a short construction period. Summary of the Invention

[0008] The purpose of this invention is to provide a detachable and reusable shield reaction frame support, so as to at least solve the problems of the current shield reaction measures, such as cumbersome construction process, inability to be reused, complex operation, high construction risk and long construction period.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A detachable and reusable shield reaction frame support includes a support body, wherein multiple support bodies are provided and spaced apart on the station floor.

[0011] The upper surface of the station floor is provided with multiple recesses at intervals, and the support base body is detachably installed in each of the recesses;

[0012] The support body includes an outer steel plate and multiple internal steel ribs. The outer steel plate is a hollow horizontal prism, and the multiple internal steel ribs are spaced apart inside the outer steel plate.

[0013] The support base body and the shield reaction frame are supported by an inclined connection through a reaction frame support steel pipe. One end of the reaction frame support steel pipe is connected to the outer steel plate near the outer wall of the shield reaction frame, and the other end is connected to the shield reaction frame.

[0014] Furthermore, the station floor slab at the sinking point is pre-embedded with steel plates and multiple chemical anchors, and is also equipped with anti-slip rubber pads.

[0015] Furthermore, the outer steel plate is in the shape of a horizontal triangular prism, including a first outer steel plate, a second outer steel plate, and a third outer steel plate. The first outer steel plate is disposed on the station floor at the sunken location, and the second and third outer steel plates are disposed on the first outer steel plate at a relative inclination.

[0016] Furthermore, the width of the first outer steel plate is consistent with the width of the sinking.

[0017] Furthermore, the four edges of the first outer steel plate extend to the bottom outer sides of the second outer steel plate and the third outer steel plate, respectively.

[0018] Furthermore, the second outer steel plate and the third outer steel plate are in the shape of an "I".

[0019] Furthermore, the support body is fixed to the station floor plate at the sunken location by a plurality of fasteners.

[0020] Furthermore, the fastener is a positioning bolt.

[0021] Furthermore, multiple supporting ribs are provided at intervals between the third outer steel plate and the sunken sidewall.

[0022] Furthermore, the longitudinal section of the supporting rib is trapezoidal.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This utility model provides a detachable and reusable shield tunnel reaction frame support, comprising multiple support bodies. Multiple recesses are spaced apart on the upper surface of the station floor. Each support body is secured to one of the recesses by positioning bolts. Each support body includes an outer steel plate and multiple internal steel ribs spaced apart within the outer steel plate. The support body and the shield reaction frame are connected and supported by reaction frame support steel pipes. This utility model simplifies on-site construction, effectively reducing construction complexity and workload, thus shortening the construction period. The positioning bolts facilitate disassembly and reuse. The simple structure and operation of this utility model reduce operational difficulty and the technical requirements for construction personnel, thereby lowering construction risks and avoiding damage to existing structures. This ensures the integrity and stability of existing structures and is both safe and economical, balancing construction safety with cost-effectiveness. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a side view of the present invention;

[0027] Figure 2 This is a side sectional view of the present invention placed in the sinking process;

[0028] Figure 3 This is a top sectional view of the present invention and the supporting rib plate;

[0029] Figure 4 This is a side sectional view of the present invention applied in a work setting;

[0030] The diagram is labeled as follows:

[0031] 1-Support body, 11-Outer steel plate, 111-First outer steel plate, 112-Second outer steel plate, 113-Third outer steel plate, 12-Inner steel rib.

[0032] 2-Reaction frame support steel pipe, 3-Shield reaction frame, 4-Station floor slab, 5-Sinking, 6-Steel plate, 7-Chemical anchor bolt, 8-Anti-slip rubber pad, 9-Support rib plate, 10-Positioning bolt. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Furthermore, in the description of this utility model, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Of course, such terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in a sequence other than those illustrated or described herein.

[0037] Example:

[0038] This embodiment provides a detachable and reusable shield reaction frame support, including a support body 1. In order to make the force distribution more uniform, multiple support bodies 1 can be set up at the same time, and the support bodies 1 are spaced apart on the station floor 4.

[0039] Specifically, such as Figure 4 As shown, multiple recesses 5 are excavated at intervals on the upper surface of the station base slab 4. Each recess 5 is a groove with a rectangular horizontal cross section, and the support base body 1 is respectively set in the recess 5.

[0040] Among them, such as Figure 2 As shown, the station floor slab 4 at the sinking point 5 is pre-embedded with steel plates 6 and multiple chemical anchors 7, and anti-slip rubber pads 8 are installed above the steel plates 6.

[0041] In this embodiment, as Figure 1 and Figure 3 As shown, the support body 1 includes an outer steel plate 11 and three internal steel ribs 12. The three internal steel ribs 12 are equidistantly spaced inside the outer steel plate 11. The outer steel plate 11 is a hollow horizontal triangular prism and includes a first outer steel plate 111, a second outer steel plate 112, and a third outer steel plate 113. The first outer steel plate 111 is placed above the anti-slip rubber pad 8 of the station floor 4 at the depression 5. The second outer steel plate 112 and the third outer steel plate 113 are welded to the first outer steel plate 111 at a relatively inclined angle. The second outer steel plate 112 is located on the side closer to the shield reaction frame 3, and the third outer steel plate 113 is located on the side away from the shield reaction frame 3. The four edges of the first outer steel plate 111 extend to the bottom outer side of the second outer steel plate 112 and the third outer steel plate 113 respectively. The second outer steel plate 112 and the third outer steel plate 113 are in the shape of "I". The end of the second outer steel plate 112 away from the first outer steel plate 111 extends to the outer side of the intersection of the second outer steel plate 112 and the third outer steel plate 113.

[0042] Specifically, the first outer steel plate 111, the second outer steel plate 112, and the third outer steel plate 113 are all cuboids. The width of the first outer steel plate 111 is the same as the width of the sinking 5. The lengths of the second outer steel plate 112 and the third outer steel plate 113 are the same. The widths of the second outer steel plate 112 and the third outer steel plate 113 can be adjusted according to the included angle A between the third outer steel plate 113 and the first outer steel plate 111.

[0043] The support body 1 is fixed to the station base plate 4 at the sinking 5 by multiple fasteners. In this embodiment, the fasteners are positioning bolts 10. The positioning bolts 10 fix the support body 1 by passing through the first outer steel plate 111, the anti-slip rubber pad 8 and the steel plate 6 in sequence.

[0044] In this embodiment, the support base body 1 and the shield reaction frame 3 are supported by an inclined connection through the reaction frame support steel pipe 2. One end of the reaction frame support steel pipe 2 is welded and fixed to the inclined outer wall of the second outer steel plate 112, and the other end is inclined and welded and fixed to the shield reaction frame 3. The inclined connection between the reaction frame support steel pipe 2 and the second outer steel plate 112 improves the support effect of the support base body 1.

[0045] In this embodiment, as Figure 2 As shown, three supporting ribs 9 are welded and fixed at equal intervals between the third outer steel plate 113 and the side wall of the sinking 5 along the length of the sinking 5, which are used to make the supporting role of the support body 1 more stable.

[0046] The longitudinal section of the support rib 9 is trapezoidal. The bottom edge of the support rib 9 is attached to the first outer steel plate 111. The two sides of the support rib 9 are attached to the third outer steel plate 113 and the side wall of the sinking 5, respectively. The height of the support rib 9 is the same as the height of the sinking 5.

[0047] In this embodiment, when the usage period ends, the support body 1 and the support rib 9 can be dismantled and recycled simply by removing the positioning bolt 10. After recycling, the support body 1 and the support rib 9 have the characteristics of being reused, thereby effectively improving the utilization rate of resources.

[0048] The usage process of this embodiment is as follows:

[0049] When pouring the station base slab 4, the station base slab 4 where the support seat body 1 needs to be placed is partially excavated and sunk 5, and chemical anchor bolts 7 and steel plates 6 are pre-embedded. Anti-slip rubber pads 8 are also placed. The support rib plate 9 is welded to the support seat body 1. Then the support seat body 1 is placed on the sunken station base slab 4 and fixed by positioning bolts 10. After installation, one end of the reaction frame support steel pipe 2 is placed on the outer wall of the second outer steel plate 112, and the other end is placed on the shield reaction frame 3 to provide force support.

[0050] When the service period ends, simply loosen the positioning bolts 10 to dismantle and recycle the support body 1 and the support rib 9. The recycled support body 1 and support rib 9 are reusable, thus effectively improving resource utilization. For the station floor slab 4 that has sunk 5 points during the service period, after the support body 1 is recycled, backfill with fine stone micro-expansion concrete of the same grade as the station floor slab 4 to meet the normal use of the station floor slab 4 in the future.

[0051] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

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