CN212428848U - Support structure system for limiting convergence deformation of tunnel - Google Patents
Support structure system for limiting convergence deformation of tunnel Download PDFInfo
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- CN212428848U CN212428848U CN202022041557.3U CN202022041557U CN212428848U CN 212428848 U CN212428848 U CN 212428848U CN 202022041557 U CN202022041557 U CN 202022041557U CN 212428848 U CN212428848 U CN 212428848U
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- energy dissipation
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Abstract
The utility model discloses a restriction tunnel convergence deformation's bearing structure system, including outer support reinforcing plate, the inboard of reinforcing plate sets up middle part atress and buckles the joint support bow member, support the reinforcing plate in the inboard setting of supporting the bow member, the reinforcing plate, the bottom of supporting the bow member and interior support reinforcing plate with bear and support horizontal base station seat fixed connection, set up bottom bearing support post in the below of base station seat, the one end and the ground of bottom bearing support post are fixed, the other end of bottom bearing support post and the bottom fixed connection who bears the horizontal base station seat of support, set up the connection mounting panel in the structure of bearing shock-absorbing structural component, inside is assisted and is supported and is consolidated energy dissipation board and inside main tributary and is supported and consolidate the energy dissipation setting layer of setting up between joint support bow member and the interior support reinforcing plate at middle part atress buckle. The utility model discloses can furthest restrict current tunnel structure convergence and warp, accord with tunnel structure safety technical field development demand.
Description
Technical Field
The utility model belongs to the technical field of tunnel structure safety, especially, relate to a bearing structure system that restriction tunnel convergence warp.
Background
In mountain tunnel construction, the new Austrian method is generally taken as a theoretical basis, namely, the self-supporting capability of surrounding rocks is maintained and utilized as a base point, anchor rods and sprayed concrete are taken as main supporting means, supporting is carried out in time, and deformation and looseness of the surrounding rocks are controlled, so that the surrounding rocks become a component of a supporting system. However, in the construction process, it is found that the geological conditions of the surrounding rock are complex and changeable, the self-bearing capacity of the surrounding rock is weak in a rock mass crushing area, particularly in a fracture crushing zone area, the structure of the surrounding rock is extremely unstable, and great influence is caused on the safety of the tunnel. However, due to the restriction of the space in the cavern and the construction trolley and the influence of the construction process, the primary lining cannot be closed to form a ring in time, the construction of the secondary lining is usually lagged behind that of the primary lining, and the construction interval generally reaches more than 70 m. Before the primary lining is sealed to form a ring, the end part of the steel arch frame is generally reinforced by the foot-locking anchor rod, but surrounding rock is broken in a broken and broken zone, the reinforcing effect of the foot-locking anchor rod is limited, and grouting needs a period of time to play an anchoring effect, so that the primary lining collapse accident often occurs in engineering, and the construction progress and the engineering safety are seriously influenced. At present, in order to limit the convergence deformation of a tunnel, a transverse supporting beam with two ends respectively hinged on the inner wall of the tunnel is generally adopted, the beam can only limit the extrusion deformation of two sides of the tunnel and cannot provide upward supporting force for a steel arch frame, sometimes, when a special condition such as an earthquake occurs, the main structure of a mountain tunnel is vibrated to generate earthquake reaction, and the main structure is possibly damaged in a strong earthquake, so that the problems that loss control, safety factor increase and structural vibration reaction reduction are required to be solved currently in series of projects such as mountain tunnel building structures and the like are solved to the greatest extent, the adverse factors provide greater challenges for the construction safety of tunnel portals, and as the road tunnel span is increasingly large at present, the tunnel section tends to be flattened from the conventional two-lane tunnel to the conventional four-lane tunnel, the surrounding rock deformation is difficult to control, and the design construction technology is more complex. The profile steel arch frame for primary lining of the tunnel plays a role in lifting weight in tunnel construction, bears surrounding rock pressure before primary lining is not formed, and bears subsequent surrounding rock pressure together with primary lining concrete-shaped formed steel concrete.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that exists, the utility model provides a restriction tunnel convergence deformation's bearing structure system, can furthest restrict current tunnel structure convergence deformation, can show to increase and support stability to tunnel structure main part, promote tunnel structure top soil body from bearing capacity and anti deformability, can control loss and increase the security performance and reduce tunnel structure earthquake response when calamity situations such as earthquake take place, solved simultaneously that current stage adopts the transverse supporting beam that both ends articulate respectively on the tunnel inner wall to restrict tunnel both sides extrusion deformation for restriction tunnel convergence deformation, can't provide the technical defect of upward holding power.
In order to realize the purpose, the utility model discloses a technical scheme be:
a supporting structure system for limiting convergence deformation of a tunnel is characterized in that an outer supporting reinforcing plate is arranged above an integral structure, a middle stress bending connection supporting arch frame is arranged on the inner side of the outer supporting reinforcing plate, an inner supporting reinforcing plate is arranged on the inner side of the middle stress bending connection supporting arch frame, the bottom ends of the outer supporting reinforcing plate, the middle stress bending connection supporting arch frame and the inner supporting reinforcing plate are fixedly connected with a bearing supporting transverse base seat, a bottom bearing supporting column is arranged below the bearing supporting transverse base seat, one end of the bottom bearing supporting column is fixed with the ground, the other end of the bottom bearing supporting column is fixedly connected with the bottom of the bearing supporting transverse base seat, a connecting mounting plate is arranged in a structure for bearing a damping structural member, an inner auxiliary supporting reinforcing energy consumption plate and an inner main supporting reinforcing energy consumption plate are arranged at the same time, and the connecting end of the inner auxiliary supporting reinforcing energy consumption plate and the inner main supporting reinforcing energy consumption plate is, an extrusion energy dissipation medium is arranged in a structure for bearing a shock absorption structural member, a plurality of internal energy dissipation hole structures are arranged on an internal auxiliary support reinforcing energy dissipation plate and an internal main support reinforcing energy dissipation plate, an internal energy dissipation rib structure is arranged between adjacent internal energy dissipation hole structures, the upper end and the lower end of the internal auxiliary support reinforcing energy dissipation plate and the internal main support reinforcing energy dissipation plate are respectively provided with a connecting end, a bottom support column is fixedly connected with a connecting mounting plate, a support transverse base is fixedly connected with the connecting mounting plate, an internal reinforcing support connecting plate structure is arranged between an external support reinforcing plate and a middle stress bending connecting support arch, the internal reinforcing support connecting plate structure is formed by alternately connecting an internal reinforcing support wave crest plate and an internal reinforcing support wave trough plate, a plurality of connecting through rods are arranged to penetrate through the external support reinforcing plate and the internal reinforcing support wave crest plate and are fixed at the two ends by reinforcing nuts, set up a plurality of connection and wear the pole and pass middle part atress buckle joint support bow member and built-in reinforcement support trough board and adopt the reinforcement nut fixed at both ends, set up the packing supporter between the joint support bow member is buckled to outer support reinforcing plate and middle part atress, set up a plurality of vaulting poles, the outer surface connection of its one end and interior support reinforcing plate is fixed, the other end bears the weight of the top with supporting and connects fixedly, and the support bears the top and middle part atress buckle joint support bow member and contact each other, buckle at the middle part atress and connect and support and set up the layer of shaking elimination between bow member and the interior support reinforcing plate.
Furthermore, the extrusion energy consumption medium is made of rubber materials.
Furthermore, the connecting ends and the connecting and installing plates on the internal auxiliary support reinforcing energy consumption plate and the internal main support reinforcing energy consumption plate are fixedly connected in a welding mode.
Furthermore, the built-in reinforcing support wave crest plate, the built-in reinforcing support wave trough plate, the internal auxiliary support reinforcing energy consumption plate and the internal main support reinforcing energy consumption plate are made of low yield point steel plates.
Furthermore, the shock absorption setting layer is made of foamed aluminum materials.
Furthermore, the built-in reinforcing supporting wave trough plate and the middle supporting arch connecting unit plate in the middle stress bending connecting supporting arch are arranged in a tangent mode, and the connecting penetrating rod penetrates through the contact point of the built-in reinforcing supporting wave trough plate and the middle supporting arch connecting unit plate.
Furthermore, the inner surfaces of the built-in reinforcing support wave peak plate and the outer support reinforcing plate are arranged in a tangent mode, and the connecting penetrating rod penetrates through the contact position of the tangent points of the built-in reinforcing support wave peak plate and the outer support reinforcing plate.
Furthermore, the middle stress bending connection supporting arch is formed by connecting a plurality of middle supporting arch connection unit plates, and middle supporting arch stress bending points are arranged between the adjacent middle supporting arch connection unit plates.
Furthermore, the contact position of the support bearing top and the middle stress bending connection support arch is a stress bending point of the middle stress bending connection support arch.
The utility model has the advantages and beneficial effects that:
the utility model discloses a support structure system for limiting tunnel convergence deformation can furthest limit current tunnel structure convergence deformation, accords with tunnel structure safety technical field development demand, the utility model can significantly increase the support stability to the tunnel structure main body, promotes the self-bearing capacity and the anti-deformability of the soil body at the top of the tunnel structure, can bear larger deformation, can efficiently support the loose soil body at the top of the tunnel, ensures the construction progress to be safe, efficient and reasonable, avoids the occurrence of disaster conditions such as collapse in the construction process, the utility model is convenient and rapid, is more convenient to install and disassemble simultaneously, does not influence the in and out of vehicles and other mechanical equipment, and the arranged outer support reinforcing plate, middle stress bending connection support arch frame and built-in reinforcing support connecting plate structure can be mutually adapted to jointly play the roles of anti-seismic support and eliminating the shock effect, and improves the anti-seismic capability of the tunnel structure main body, the tunnel structure earthquake-proof device can control loss, increase safety performance and reduce earthquake reaction of the tunnel structure when disasters such as earthquakes occur, and meanwhile solves the technical defects that the transverse supporting beams with two ends respectively hinged on the inner wall of the tunnel can only limit extrusion deformation of two sides of the tunnel and cannot provide upward supporting force for limiting convergence deformation of the tunnel at the present stage.
Drawings
The supporting structure system for limiting the convergence deformation of the tunnel according to the present invention is further described with reference to the accompanying drawings:
FIG. 1 is a schematic side view of the support structure system for limiting the convergence deformation of a tunnel according to the present invention;
FIG. 2 is a schematic view of a load-bearing shock-absorbing structure of the present invention;
FIG. 3 is a schematic view of the reinforcing energy dissipation plate with the inner auxiliary support of the present invention;
FIG. 4 is a schematic view of the internal main support reinforcing energy dissipation plate of the present invention;
fig. 5 is a schematic view of the middle stressed bending connection support arch of the present invention.
In the figure: 1 is an outer supporting reinforcing plate; 2, a middle stressed bending connection supporting arch frame; 3 is a middle supporting arch connecting unit plate; 4 is a stress break point of the middle supporting arch frame; 5 is an inner supporting reinforcing plate; 6 is a built-in reinforced support connecting plate structure; 7 is a built-in reinforced supporting wave peak plate; 8 is a built-in reinforcing supporting wave trough plate; 9 is a bearing and supporting horizontal base pedestal; 10 is a bottom bearing support column; 11 is a mounting rivet; 12 is a filling support body; 13 is a shock absorption setting layer; 14 is a bearing shock absorption structural part; 15 is a connecting penetrating rod; 16 is a connecting mounting plate; 17 is an internal auxiliary support reinforcing energy consumption plate; 18 is an extrusion energy consumption medium; 19 is an internal main support reinforcing energy dissipation plate; 20 is a structure with an internal energy dissipation hole; 21 is a structure with energy dissipation ribs arranged inside; 22 is a connecting end; 23 is a reinforcing nut; 24 is a brace rod; and 25 is a supporting bearing roof.
Detailed Description
For further explanation of the present invention, the following detailed description of the present invention is provided with reference to the drawings and examples, which should not be construed as limiting the scope of the present invention.
Example 1:
as shown in fig. 1, the support structure system for limiting the convergence deformation of a tunnel in this embodiment mainly includes an outer support reinforcing plate 1, a middle stressed bent connection support arch 2, a middle support arch connection unit plate 3, a middle support arch stressed folding point 4, an inner support reinforcing plate 5, a built-in reinforcement support connection plate structure 6, a built-in reinforcement support wave crest plate 7, a built-in reinforcement support wave trough plate 8, a bearing support horizontal base seat 9, a bottom bearing support column 10, a mounting rivet 11, a filling support body 12, a shock absorption setting layer 13, a bearing shock absorption structural member 14, a connection penetrating rod 15, a connection mounting plate 16, an internal auxiliary support reinforcement energy dissipation plate 17, an extrusion energy dissipation medium 18, an internal support reinforcement energy dissipation plate 19, an internal energy dissipation hole structure 20, an internal energy dissipation rib structure 21, a connection end 22, a reinforcement nut 23, a support rod 24, and a support bearing roof 25;
in the bearing structure system that restriction tunnel convergence warp, set up outer support reinforcing plate 1 in overall structure's top, set up middle part atress buckle joint support bow member 2 in the inboard of outer support reinforcing plate 1, buckle joint support bow member 5 in the inboard of bow member 2 in middle part atress, outer support reinforcing plate 1, middle part atress is buckled the bottom of joint support bow member 2 and interior support reinforcing plate 5 and is born and support horizontal base platform seat 9 fixed connection, set up bottom bearing support post 10 in the below of bearing and supporting horizontal base platform seat 9, the one end and the ground of bottom bearing support post 10 are fixed, the other end of bottom bearing support post 10 and the bottom fixed connection who bears and support horizontal base platform seat 9. As shown in fig. 2, a connection mounting plate 16 is provided in the structure carrying the shock-absorbing structural members 14, and an inner secondary support reinforcing energy-dissipating plate 17 and an inner primary support reinforcing energy-dissipating plate 19 are provided. The connection ends 22 of the inner auxiliary support reinforcing energy dissipation plate 17 and the inner main support reinforcing energy dissipation plate 19 are fixedly connected with the connection mounting plate 16, and the extrusion energy dissipation medium 18 is arranged in the structure for bearing the shock absorption structural member 14. As shown in fig. 3 and 4, a plurality of internal energy dissipation hole structures 20 are arranged on the internal auxiliary support reinforcing energy dissipation plate 17 and the internal main support reinforcing energy dissipation plate 19, an internal energy dissipation rib structure 21 is arranged between the adjacent internal energy dissipation hole structures 20 and the internal energy dissipation hole structures 20, connecting ends 22 are respectively arranged at the upper end and the lower end of the internal auxiliary support reinforcing energy dissipation plate 17 and the internal main support reinforcing energy dissipation plate 19, a plurality of mounting rivets 11 are arranged to fixedly connect the bottom bearing support column 10 and the connecting mounting plate 16, and a plurality of mounting rivets 11 are arranged to fixedly connect the bearing support horizontal base 9 and the connecting mounting plate 16. As shown in fig. 5, the middle stress bending connection support arch 2 is formed by connecting a plurality of middle support arch connection unit plates 3, and middle support arch stress bending points 4 are arranged between the adjacent middle support arch connection unit plates 3 and middle support arch connection unit plates 3, an internal reinforcement support connection plate structure 6 is arranged between the external support reinforcement plate 1 and the middle stress bending connection support arch 2, the internal reinforcement support connection plate structure 6 is formed by alternately connecting an internal reinforcement support wave crest plate 7 and an internal reinforcement support wave trough plate 8, a plurality of connection through rods 15 are arranged to penetrate through the external support reinforcement plate 1 and the internal reinforcement support wave crest plate 7 and fixed by reinforcing nuts 23 at both ends, a plurality of connection through rods 15 are arranged to penetrate through the middle stress bending connection support arch 2 and the internal reinforcement support wave trough plate 8 and fixed by reinforcing nuts 23 at both ends, set up packing support body 12 between outer support reinforcing plate 1 and middle part atress are buckled between the joint support bow member 2, set up a plurality of vaulting poles 24, its one end and the outer surface connection of interior support reinforcing plate 5 are fixed, and the other end bears the weight of the top 25 with supporting and connects fixedly, and the support bears the weight of the top 25 and middle part atress is buckled and is connected the joint support bow member 2 and contact each other to set up between middle part atress is buckled and is connected support bow member 2 and interior support reinforcing plate 5 and eliminate shock and set up layer 13.
The extrusion energy dissipation medium 18 is made of rubber material.
The internal auxiliary support reinforcing energy dissipation plate 17, the connecting end 22 on the internal main support reinforcing energy dissipation plate 19 and the connecting installation plate 16 are fixedly connected by welding.
The built-in reinforcing and supporting wave crest plate 7, the built-in reinforcing and supporting wave crest plate 8, the internal auxiliary supporting and reinforcing energy consumption plate 17 and the internal main supporting and reinforcing energy consumption plate 19 are made of low yield point steel plates determined according to design requirements.
The shock absorbing setting layer 13 is made of foamed aluminum material.
The filling support body (12) is made of light concrete added with polyvinyl alcohol, and the addition amount of the polyvinyl alcohol is 3% of the weight of the concrete.
The built-in reinforcing supporting wave trough plate 8 and the middle supporting arch connecting unit plate 3 in the middle stress bending connecting supporting arch 2 are arranged in a tangent mode, and the connecting penetrating rod 15 penetrates through the contact point of the built-in reinforcing supporting wave trough plate 8 and the tangent point of the middle supporting arch connecting unit plate 3.
The internal reinforcing support wave peak plate 7 and the inner surface of the outer support reinforcing plate 1 are arranged in a tangent mode, and the connecting penetrating rod 15 penetrates through the contact position of the tangent point of the internal reinforcing support wave peak plate 7 and the outer support reinforcing plate 1.
The contact position of the support bearing top 25 and the middle stress bending connection support arch 2 is a middle stress bending point 4 of the middle stress bending connection support arch 2.
Example 2:
the difference between this example and example 1 is only that the filler support is made of a raw material, and in this example, the filler support (12) is made of lightweight concrete to which polypropylene emulsion is added in an amount of 3% by weight of the concrete. The rest is the same as example 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A support structure system for limiting convergence deformation of a tunnel, comprising: an outer supporting reinforcing plate (1) is arranged above the integral structure, a middle stress bending connection supporting arch frame (2) is arranged on the inner side of the outer supporting reinforcing plate (1), an inner supporting reinforcing plate (5) is arranged on the inner side of the middle stress bending connection supporting arch frame (2), the bottom ends of the outer supporting reinforcing plate (1), the middle stress bending connection supporting arch frame (2) and the inner supporting reinforcing plate (5) are fixedly connected with a bearing supporting transverse base seat (9), a bottom bearing supporting column (10) is arranged below the bearing supporting transverse base seat (9), one end of the bottom bearing supporting column (10) is fixed with the ground, the other end of the bottom bearing supporting column (10) is fixedly connected with the bottom of the bearing supporting transverse base seat (9), a connecting mounting plate (16) is arranged in the structure of a bearing damping structural member (14), and an inner auxiliary supporting reinforcing energy consumption plate (17) and an inner main supporting reinforcing energy consumption plate (19) are arranged at the same time, the internal auxiliary support reinforcing energy dissipation plate (17) and the connecting end (22) on the internal main support reinforcing energy dissipation plate (19) are fixedly connected with the connecting mounting plate (16), an extrusion energy dissipation medium (18) is arranged in the structure of the bearing damping structural member (14), a plurality of internal energy dissipation hole structures (20) are arranged on the internal auxiliary support reinforcing energy dissipation plate (17) and the internal main support reinforcing energy dissipation plate (19), an internal energy dissipation rib structure (21) is arranged between the adjacent internal energy dissipation hole structures (20), the connecting ends (22) are respectively arranged at the upper end and the lower end of the internal auxiliary support reinforcing energy dissipation plate (17) and the internal main support reinforcing energy dissipation plate (19), the bottom bearing support column (10) is fixedly connected with the connecting mounting plate (16), the bearing support transverse base seat (9) is fixedly connected with the connecting mounting plate (16), the internal reinforcing support connecting plate structure (6) is arranged between the external support reinforcing plate (1) and the middle stress bending connecting support arch (2), the built-in reinforcing and supporting connecting plate structure (6) is formed by alternately connecting a built-in reinforcing and supporting wave crest plate (7) and a built-in reinforcing and supporting wave trough plate (8) with each other, a plurality of connecting penetrating rods (15) are arranged to penetrate through an outer supporting reinforcing plate (1) and the built-in reinforcing and supporting wave crest plate (7) and are fixed at two ends by reinforcing nuts (23), a plurality of connecting penetrating rods (15) are arranged to penetrate through a middle stressed bent connecting and supporting arch frame (2) and the built-in reinforcing and supporting wave trough plate (8) and are fixed at two ends by reinforcing nuts (23), a filling support body (12) is arranged between the outer supporting reinforcing plate (1) and the middle stressed bent connecting and supporting arch frame (2), a plurality of supporting rods (24) are arranged, one end of each supporting rod is fixedly connected with the outer surface of the inner supporting reinforcing plate (5), the other end of each supporting rod is fixedly connected with a supporting roof (25), and the supporting and supporting roofs (25) are contacted, a shock absorption setting layer (13) is arranged between the middle stress bending connection support arch centering (2) and the inner support reinforcing plate (5).
2. The support structure system for limiting the convergence deformation of a tunnel according to claim 1, wherein: the extrusion energy dissipation medium (18) is made of rubber materials.
3. The support structure system for limiting the convergence deformation of a tunnel according to claim 1, wherein: the internal auxiliary support reinforcing energy dissipation plate (17), the connecting end (22) on the internal main support reinforcing energy dissipation plate (19) and the connecting installation plate (16) are fixedly connected in a welding mode.
4. The support structure system for limiting the convergence deformation of a tunnel according to claim 1, wherein: the built-in reinforcing support wave crest plate (7), the built-in reinforcing support wave trough plate (8), the internal auxiliary support reinforcing energy consumption plate (17) and the internal main support reinforcing energy consumption plate (19) are made of low yield point steel plates.
5. The support structure system for limiting the convergence deformation of a tunnel according to claim 1, wherein: the shock absorption setting layer (13) is made of foamed aluminum material.
6. The support structure system for limiting the convergence deformation of a tunnel according to claim 1, wherein: the built-in reinforcing supporting wave trough plate (8) and the middle supporting arch connecting unit plate (3) in the middle stressed bending connecting supporting arch (2) are arranged in a tangent mode, and the connecting penetrating rod (15) penetrates through the contact point of the built-in reinforcing supporting wave trough plate (8) and the middle supporting arch connecting unit plate (3).
7. The support structure system for limiting the convergence deformation of a tunnel according to claim 1, wherein: the inner surfaces of the built-in reinforced supporting wave peak plate (7) and the outer supporting reinforcing plate (1) are arranged in a tangent mode, and the connecting penetrating rod (15) penetrates through the contact position of the tangent points of the built-in reinforced supporting wave peak plate (7) and the outer supporting reinforcing plate (1).
8. The support structure system for limiting the convergence deformation of a tunnel according to claim 1, wherein: the middle stress bending connection supporting arch frame (2) is formed by connecting a plurality of middle supporting arch frame connection unit plates (3), and a middle supporting arch frame stress folding point (4) is arranged between the adjacent middle supporting arch frame connection unit plates (3).
9. The support structure system for limiting tunnel convergence deformation of claim 8, wherein: the contact position of the supporting bearing top (25) and the middle stress bending connection supporting arch (2) is a middle supporting arch stress folding point (4) in the middle stress bending connection supporting arch (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022041557.3U CN212428848U (en) | 2020-09-17 | 2020-09-17 | Support structure system for limiting convergence deformation of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022041557.3U CN212428848U (en) | 2020-09-17 | 2020-09-17 | Support structure system for limiting convergence deformation of tunnel |
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| Publication Number | Publication Date |
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| CN212428848U true CN212428848U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022041557.3U Expired - Fee Related CN212428848U (en) | 2020-09-17 | 2020-09-17 | Support structure system for limiting convergence deformation of tunnel |
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| CN (1) | CN212428848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963198A (en) * | 2020-09-17 | 2020-11-20 | 张延年 | Support structure system for limiting convergence deformation of tunnel |
| CN113027471A (en) * | 2021-03-30 | 2021-06-25 | 中交一公局集团有限公司 | Collapsible loess stratum subway tunnel earth pressure balance shield construction method |
-
2020
- 2020-09-17 CN CN202022041557.3U patent/CN212428848U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963198A (en) * | 2020-09-17 | 2020-11-20 | 张延年 | Support structure system for limiting convergence deformation of tunnel |
| CN113027471A (en) * | 2021-03-30 | 2021-06-25 | 中交一公局集团有限公司 | Collapsible loess stratum subway tunnel earth pressure balance shield construction method |
| CN113027471B (en) * | 2021-03-30 | 2021-11-30 | 中交一公局集团有限公司 | Collapsible loess stratum subway tunnel earth pressure balance shield construction method |
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Granted publication date: 20210129 Termination date: 20210917 |