Underground Structure Strengthening System with Earthquake Resistance and Anti-Floating Capabilities

Abstract

The present invention provides an underground structure strengthening system with both bearing, seismic and anti-floating capabilities, belonging to the field of building structures, including a bearing tension and compression energy dissipator, an underground structure, a concrete cushion, a concrete support water cutoff wall, an extrusion-sealed energy dissipating filler, a permeable sand layer, an overflow pipe, a sump well, and a high-strength anti-floating consolidation plate. A plurality of high-strength anti-floating consolidation plates are arranged between two concrete support water cutoff walls, and the left and right ends of the high-strength anti-floating consolidation plate are inserted into the concrete support water cutoff wall. A bearing tension and compression energy dissipator is arranged above each high-strength anti-floating consolidation plate. The beneficial effect of the present invention is that it can continuously dewater, improve the bearing capacity of the underground structure, have both bearing, seismic and anti-floating capabilities, and effectively limit the buoyancy effect of groundwater.

Description

Technical Field

[0001] The present invention belongs to the field of building structures, and particularly relates to an underground structure strengthening system with both bearing and seismic resistance and anti-floating capabilities. Background Art

[0002] With the full development of the utilization of underground space, the application of underground buildings has been very extensive. In areas with a relatively high groundwater level, the upward buoyancy generated by groundwater is relatively large, and the anti-floating problem of underground buildings has become a key issue that needs to be controlled during the design and construction of underground structures and buildings. The commonly used method for anti-floating design is to jointly resist the groundwater buoyancy through the self-weight of the structure, the upper load of the building, and certain anti-floating measures. However, when encountering a local impermeable layer affected by sudden heavy rain or terrain, the risk coefficient of the structure floating upward will increase, and general de-floating measures will be severely tested. Therefore, it is necessary to take certain measures to appropriately increase the anti-floating safety factor of the underground structure to avoid unnecessary losses. For traditional anti-floating schemes, anti-floating checks need to be carried out and corresponding countermeasures need to be adopted. For the transformation of the anti-floating scheme of existing underground structures, on the one hand, some concrete chiseling and steel bar implantation will occur, which will have a greater impact on the durability design of the underground structure system and the integrity of the external waterproof layer. On the other hand, it will greatly affect the construction period, increasing manpower, material resources, and financial resources. The existing anti-floating systems of inventions have certain limitations, and the system cannot guarantee the longitudinal overall stability during floating. Therefore, there is an urgent need to invent an anti-floating control structure that can provide better overall stability, limit the floating within a safe range, and cause no harm to the underground structure. Therefore, the current underground anti-floating structure needs to provide a gradually increasing tensile force when the water level rises, and be able to provide the required bearing capacity when the water level drops, reduce losses, guarantee the lives and property of the people, and reduce the accident rate. Summary of the Invention

[0003] In order to solve the above-mentioned existing technical problems, the present invention provides an underground structure strengthening system with both bearing and seismic resistance and anti-floating capabilities, which can avoid accidents of underground structures caused by the action of groundwater buoyancy, insufficient bearing capacity, and seismic resistance.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] An underground structure strengthening system with both load-bearing and seismic and anti-floating capabilities, including load-bearing tension and compression energy dissipators, an underground structure, a concrete cushion, a concrete support water cutoff wall, an extrusion-sealed energy dissipating filler, a permeable sand layer, an overflow pipe, a sump, a high-strength anti-floating consolidation plate, a connecting piece A, and a connecting piece B. The lower part of the underground structure is provided with an underground structure floor slab. Trapezoidal protrusions and trapezoidal grooves are arranged at intervals on the lower part of the underground structure floor slab. A concrete cushion is arranged below the underground structure floor slab. Trapezoidal protrusions and trapezoidal grooves are arranged at intervals on the upper part of the concrete cushion. L-shaped anti-floating tenon grooves and trapezoidal grooves are arranged on the lower left and right sides of the lower part of the concrete cushion. Concrete support water cutoff walls are arranged as supports on the lower left and right sides of the concrete cushion. Trapezoidal protrusions and convex body clamping ends are arranged on the upper part of the concrete support water cutoff wall;

[0006] Insert the trapezoidal protrusions on the lower part of the underground structure floor slab into the trapezoidal grooves on the upper part of the concrete cushion, insert the trapezoidal protrusions on the upper part of the concrete cushion into the trapezoidal grooves on the lower part of the underground structure floor slab, insert the trapezoidal protrusions on the upper part of the concrete support water cutoff wall into the trapezoidal grooves on the lower part of the concrete cushion, insert the convex body clamping ends on the upper part of the concrete support water cutoff wall into the anti-floating tenon grooves on the lower part of the concrete cushion, and an extrusion-sealed energy dissipating filler is arranged between all the trapezoidal protrusions and trapezoidal grooves;

[0007] A plurality of high-strength anti-floating consolidation plates are arranged between the two concrete support water cutoff walls. The left and right ends of the high-strength anti-floating consolidation plates are inserted into the concrete support water cutoff walls. A load-bearing tension and compression energy dissipator is arranged above each high-strength anti-floating consolidation plate. A plurality of high-strength fixed hinges and ordinary fixed hinges are arranged in the structure of the load-bearing tension and compression energy dissipator. The high-strength fixed hinges are located on both sides of the structure, and the ordinary fixed hinges are located in the middle of the structure. A coordinated connection support plate is arranged between each ordinary fixed hinge and the four adjacent high-strength fixed hinges for connection. End connection plates are arranged on the upper and lower sides of the structure of the load-bearing tension and compression energy dissipator, and vertical support energy dissipating plates are arranged on both sides. The end connection plates and vertical support energy dissipating plates are fixedly connected to the high-strength fixed hinges. The high-strength anti-floating consolidation plate and the end connection plate are connected by a connecting piece A, and the concrete cushion and the end connection plate are connected by a connecting piece B. The empty part between the two concrete support water cutoff walls is filled with a permeable sand layer;

[0008] The sump is arranged outside the concrete support water cutoff wall and its top is lower than the concrete cushion. A plurality of overflow pipes penetrate through the concrete support water cutoff wall. One end of the overflow pipe is communicated with the permeable sand layer and the other end is communicated with the sump.

[0009] Furthermore, the end connection plates, vertical support energy dissipating plates and coordinated connection support plates are made of low yield point steel plates.

[0010] Furthermore, the extrusion-sealed energy dissipating filler is made of resin glue.

[0011] Furthermore, the concrete cushion and the concrete support water cutoff wall are made of waterproof concrete.

[0012] Furthermore, the outer surfaces of the high-strength anti-floating consolidation plate, connector A, connector B, end connection plate, vertical support energy-absorbing plate, high-strength fixed hinge, common fixed hinge and coordinated connection support plate are brushed with anti-corrosion coating.

[0013] Furthermore, the protruding clamping end is inserted into the anti-floating tenon groove to form an L-shaped interlocking anti-floating combined structure.

[0014] The beneficial effects of the present invention are that it has the ability to bear, resist earthquakes and resist buoyancy, effectively limits the buoyancy of groundwater, connects the permeable sand layer and the water collection well to carry out continuous precipitation, and reduces the occurrence of accidental sudden increase of groundwater. The multiple bearing, tensile and compressive energy-absorbing bodies set up can not only increase the bearing capacity of the underground structure, but also resist the vibration energy transmitted to the underground structure by the dynamic load and static load of the ground, and achieve effective seismic isolation effect. The overall structural design can ensure that when the water level drops, it provides sufficient bearing capacity. The underground structure bottom plate, concrete cushion layer, and concrete support water cutoff wall set up through Through the interlocking of trapezoidal protrusions and trapezoidal grooves, the concrete cushion layer can provide sufficient anti-floating tension when the water level rises through the connection of multiple load-bearing tension and compression energy-absorbing bodies, high-strength anti-floating consolidation plates and concrete supporting cutoff walls. On the other hand, the anti-floating composite structure with an L-shaped interlocking formed by the insertion of the protruding body end into the anti-floating tenon groove also improves the anti-floating ability, ensures the durability design of the anti-floating system, reduces the maintenance cost of the underground structure in the later stage of use, and avoids accidents of the underground structure caused by the buoyancy of groundwater and insufficient load-bearing and seismic resistance. It has strong practicality and wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional schematic diagram of the underground structure reinforcement system of the present invention having both load-bearing, earthquake-resistant and anti-floating capabilities.

[0016] Figure 2 Schematic diagram of the underground structure base plate structure.

[0017] Figure 3 Schematic diagram of the concrete cushion structure.

[0018] Figure 4 Schematic diagram of the concrete support cutoff wall structure.

[0019] Figure 5 Schematic diagram of the structure of the tensile and compressive energy-absorbing body.

[0020] In the figure: 1 is a load-bearing tension and compression energy dissipation body; 2 is an underground structure; 3 is a trapezoidal convex block; 4 is the bottom plate of the underground structure; 5 is a concrete cushion; 6 is an anti-floating mortise groove; 7 is a concrete support water cut-off wall; 8 is a convex body clamping end; 9 is a trapezoidal groove; 10 is an extrusion-sealed energy dissipation filler; 11 is a permeable sand layer; 12 is an overflow pipe; 13 is a sump; 14 is a high-strength anti-floating consolidation plate; 15 is a connecting piece A; 16 is a connecting piece B; 17 is an end connecting plate; 18 is a vertical support energy dissipation plate; 19 is a high-strength fixed hinge; 20 is an ordinary fixed hinge; 21 is a coordinated connection support plate. Specific implementation mode

[0021] In order to further illustrate the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0022] Embodiment: As Figures 1 to 5 shown, an underground structure strengthening system with both load-bearing earthquake resistance and anti-floating capabilities includes a load-bearing tension and compression energy dissipation body 1, an underground structure 2, a concrete cushion 5, a concrete support water cut-off wall 7, an extrusion-sealed energy dissipation filler 10, a permeable sand layer 11, an overflow pipe 12, a sump 13, a high-strength anti-floating consolidation plate 14, a connecting piece A 15, and a connecting piece B 16. The lower part of the underground structure 2 is provided with a bottom plate 4 of the underground structure. Trapezoidal convex blocks 3 and trapezoidal grooves 9 are arranged at intervals below the bottom plate 4 of the underground structure. A concrete cushion 5 is arranged below the bottom plate 4 of the underground structure. Trapezoidal convex blocks 3 and trapezoidal grooves 9 are arranged at intervals above the concrete cushion 5. L-shaped anti-floating mortise grooves 6 and trapezoidal grooves 9 are arranged on both the left and right sides below the concrete cushion 5. Concrete support water cut-off walls 7 are arranged as supports on both the left and right sides below the concrete cushion 5. Trapezoidal convex blocks 3 and convex body clamping ends 8 are arranged above the concrete support water cut-off wall 7;

[0023] Insert the trapezoidal convex block 3 below the bottom plate 4 of the underground structure into the trapezoidal groove 9 above the concrete cushion 5, insert the trapezoidal convex block 3 above the concrete cushion 5 into the trapezoidal groove 9 below the bottom plate 4 of the underground structure, insert the trapezoidal convex block 3 above the concrete support water cut-off wall 7 into the trapezoidal groove 9 below the concrete cushion 5, insert the convex body clamping end 8 above the concrete support water cut-off wall 7 into the anti-floating mortise groove 6 below the concrete cushion 5, and an extrusion-sealed energy dissipation filler 10 is arranged between all the trapezoidal convex blocks 3 and trapezoidal grooves 9;

[0024] A plurality of high-strength anti-floating consolidation plates 14 are arranged between two concrete support water cutoff walls 7. The left and right ends of the high-strength anti-floating consolidation plates 14 are inserted into the concrete support water cutoff walls 7. A load-bearing tension and compression energy dissipation body 1 is arranged above each high-strength anti-floating consolidation plate 14. A plurality of high-strength fixed hinges 19 and ordinary fixed hinges 20 are arranged in the structure of the load-bearing tension and compression energy dissipation body 1. The high-strength fixed hinges 19 are located on both sides of the structure, and the ordinary fixed hinges 20 are located in the middle of the structure. A coordinated connection support plate 21 is arranged between each ordinary fixed hinge 20 and the four adjacent high-strength fixed hinges 19 for connection. End connection plates 17 are arranged on the upper and lower sides of the structure of the load-bearing tension and compression energy dissipation body 1, and vertical support energy dissipation plates 18 are arranged on both sides. The end connection plates 17 and the vertical support energy dissipation plates 18 are fixedly connected to the high-strength fixed hinges 19. A connector A15 is used to connect the high-strength anti-floating consolidation plate 14 and the end connection plate 17, and a connector B16 is used to connect the concrete cushion 5 and the end connection plate 17. The empty part between the two concrete support water cutoff walls 7 is filled with a permeable sand layer 11;

[0025] The catch basin 13 is arranged outside the concrete support water cutoff wall 7 and its top is lower than the concrete cushion 5. A plurality of overflow pipes 12 penetrate through the concrete support water cutoff wall 7. One end of the overflow pipe 12 is communicated with the permeable sand layer 11, and the other end is communicated with the catch basin 13.

[0026] The end connection plates 17, the vertical support energy dissipation plates 18 and the coordinated connection support plates 21 are made of low yield point steel plates.

[0027] The extrusion seal energy dissipation filler 10 is made of resin glue.

[0028] The concrete cushion 5 and the concrete support water cutoff wall 7 are made of waterproof concrete.

[0029] The outer surfaces of the high-strength anti-floating consolidation plates 14, the connectors A15, the connectors B16, the end connection plates 17, the vertical support energy dissipation plates 18, the high-strength fixed hinges 19, the ordinary fixed hinges 20 and the coordinated connection support plates 21 are painted with an anti-corrosion coating.

[0030] The convex body clamping end 8 is inserted into the anti-floating tenon groove 6 to form an L-shaped occluding anti-floating combined structure.

[0031] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An underground structure strengthening system with both bearing and seismic and anti - floating capabilities, including a bearing tension - compression energy - dissipating body (1), an underground structure (2), a concrete cushion layer (5), a concrete support and water - intercepting wall (7), an extrusion - sealed energy - dissipating filler (10), a permeable sand layer (11), an overflow pipe (12), a sump (13), a high - strength anti - floating consolidation plate (14), a connecting piece A (15), and a connecting piece B (16), characterized in that: An underground structure floor slab (4) is arranged at the lower part of the underground structure (2). Trapezoidal bumps (3) and trapezoidal grooves (9) are arranged at intervals below the underground structure floor slab (4). A concrete cushion layer (5) is arranged below the underground structure floor slab (4). Trapezoidal bumps (3) and trapezoidal grooves (9) are arranged at intervals on the upper part of the concrete cushion layer (5). L - shaped anti - floating tenon grooves (6) and trapezoidal grooves (9) are arranged on the left and right sides of the lower part of the concrete cushion layer (5). Concrete support and water - intercepting walls (7) are arranged as supports on the left and right sides below the concrete cushion layer (5). Trapezoidal bumps (3) and convex body clamping ends (8) are arranged on the upper part of the concrete support and water - intercepting wall (7); Insert the trapezoidal bumps (3) below the underground structure floor slab (4) into the trapezoidal grooves (9) on the upper part of the concrete cushion layer (5), insert the trapezoidal bumps (3) on the upper part of the concrete cushion layer (5) into the trapezoidal grooves (9) below the underground structure floor slab (4), insert the trapezoidal bumps (3) on the upper part of the concrete support and water - intercepting wall (7) into the trapezoidal grooves (9) on the lower part of the concrete cushion layer (5), insert the convex body clamping ends (8) on the upper part of the concrete support and water - intercepting wall (7) into the anti - floating tenon grooves (6) on the lower part of the concrete cushion layer (5). Extrusion - sealed energy - dissipating fillers (10) are arranged between all the trapezoidal bumps (3) and trapezoidal grooves (9); A plurality of high - strength anti - floating consolidation plates (14) are arranged between the two concrete support and water - intercepting walls (7). The left and right ends of the high - strength anti - floating consolidation plates (14) are inserted into the concrete support and water - intercepting walls (7). A bearing tension - compression energy - dissipating body (1) is arranged above each high - strength anti - floating consolidation plate (14). A plurality of high - strength fixed hinges (19) and ordinary fixed hinges (20) are arranged in the structure of the bearing tension - compression energy - dissipating body (1). The high - strength fixed hinges (19) are located on both sides of the structure, and the ordinary fixed hinges (20) are located in the middle of the structure. Coordination connection support plates (21) are arranged to connect between each ordinary fixed hinge (20) and the four adjacent high - strength fixed hinges (19). End connection plates (17) are arranged on the upper and lower sides of the structure of the bearing tension - compression energy - dissipating body (1), and vertical support energy - dissipating plates (18) are arranged on both sides. The end connection plates (17) and the vertical support energy - dissipating plates (18) are fixedly connected to the high - strength fixed hinges (19). A connecting piece A (15) is used to connect the high - strength anti - floating consolidation plate (14) and the end connection plate (17), and a connecting piece B (16) is used to connect the concrete cushion layer (5) and the end connection plate (17). The space between the two concrete support and water - intercepting walls (7) is filled with a permeable sand layer (11); A water collection well (13) is arranged outside the concrete support water cut-off wall (7) and the top thereof is lower than the concrete cushion layer (5); a plurality of overflow pipes (12) are arranged to penetrate the concrete support water cut-off wall (7); one end of the overflow pipe (12) is connected to the permeable sand layer (11) and the other end is connected to the water collection well (13); The end connection plate (17), the vertical support energy-absorbing plate (18) and the coordinated connection support plate (21) are made of low-yield point steel plates; The extrusion sealing energy dissipation filler (10) is made of resin glue.

2. The underground structure strengthening system with both bearing and earthquake resistance and anti-floating capabilities as claimed in claim 1, wherein: The concrete cushion layer (5) and the concrete support water cut-off wall (7) are made of waterproof concrete.

3. The enhanced underground structure system with both load-bearing, earthquake resistance and anti-floating capabilities as claimed in claim 1, characterized in that: The outer surfaces of the high-strength anti-floating consolidation plate (14), the connector A (15), the connector B (16), the end connecting plate (17), the vertical supporting energy-absorbing plate (18), the high-strength fixed hinge (19), the common fixed hinge (20) and the coordinated connecting support plate (21) are brushed with an anti-corrosion coating.

4. The underground structure reinforcement system with both load-bearing and seismic and anti-floating capabilities as described in claim 1, characterized in that: The convex clamping end (8) is inserted into the anti-floating tenon groove (6) to form an L-shaped interlocking anti-floating combined structure.

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