CN216973512U - Waterproof structure of layer-adding joint of open-underground excavation combined construction subway station - Google Patents
Waterproof structure of layer-adding joint of open-underground excavation combined construction subway station Download PDFInfo
- Publication number
- CN216973512U CN216973512U CN202123225402.6U CN202123225402U CN216973512U CN 216973512 U CN216973512 U CN 216973512U CN 202123225402 U CN202123225402 U CN 202123225402U CN 216973512 U CN216973512 U CN 216973512U
- Authority
- CN
- China
- Prior art keywords
- waterproof
- layer
- station
- sbs
- ecb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a waterproof structure at a layer-adding joint of a subway station built by combining light and dark excavation, wherein an ECB waterproof layer is arranged on the outer side of a main body structure of a constructed underground excavation subway station, an SBS waterproof layer is arranged on the outer side of the main body structure of the constructed open excavation subway station, the waterproof structure at the layer-adding joint is positioned at the connecting position of a side wall of the open excavation structure and a top plate of the underground excavation station and is the side edge and the top of a buckling arch structure at the upper parts of pile top crown beams at two sides of the underground excavation station, SBS waterproof coiled materials are arranged on the side edge of the buckling arch structure and are attached to the ECB waterproof layer, and reserved SBS waterproof coiled materials are positioned at the top of the buckling arch structure and are attached to SBS waterproof coiled materials reserved in the open excavation station structure. The utility model ensures that the underground excavation waterproof structure is not damaged during the later period of breaking the redundant structure of the underground excavation station, eliminates the phenomenon that the waterproof at the junction of the open excavation and the underground excavation is weak and water leakage is easy to occur, and has the advantages of convenient construction, safety, economy and wide application range.
Description
Technical Field
The utility model relates to the field of underground engineering construction, in particular to a waterproof structure for a storey-adding joint of a light and dark dug co-constructed subway station.
Background
There are many problems to be solved in the process of construction of a large number of underground works, of which leakage at subway stations is one. Underground water has a serious erosion effect on an underground engineering structure, physical scouring and chemical reaction have serious damage on a concrete structure, and the bearing capacity of a subway structure is directly threatened. The leakage water of the subway can not only cause the corrosion damage of the rail, but also aggravate the mildew damage of the interior decoration of the subway due to the humid environment in the tunnel, thus threatening the power utilization safety of the subway and leaving hidden troubles for operation and maintenance. The treatment of the leakage water generally wastes time and labor and has poor effect, so that the water prevention is very important content in the subway construction.
With the acceleration of urbanization in China, engineering projects for connecting open cut structures and underground cut structures through transverse channels or inclined channels are increasing continuously, for example, Guangzhou Yide road stations and Huanghua sentry stations, and light and dark excavation combined subway projects develop towards a more complex direction. And carrying out open excavation and layer addition on the underground excavated subway, and carrying out waterproof engineering in two stages. Due to the characteristics of complex structure, high construction difficulty, low integration degree and the like of the storey-adding subway station, higher requirements are provided for the waterproof process and the construction technology of the light and shade excavation junction.
Disclosure of Invention
In view of the above, the utility model provides a waterproof structure for a layer-added junction of a subway station built by combining light and dark excavation, which solves the technical problems that the waterproof structure of the layer-added junction of the subway station built by light and dark excavation is not attached and is easy to crack, the technical problem that a waterproof layer is easy to damage when the protective layer is broken, and the technical problems of complicated construction, high cost and poor waterproof effect in the prior art.
The technical scheme of the utility model is as follows:
a waterproof structure of a layer-added joint of a subway station built by combining light and dark excavation is characterized in that an ECB waterproof layer is arranged on the outer side of a main body structure of a constructed underground excavation subway station, an SBS waterproof layer is arranged on the outer side of the main body structure of the constructed open excavation subway station, the waterproof structure of the layer-added joint is positioned at the connecting position of a side wall of the open excavation structure and a top plate of the underground excavation station and is the side edge and the top of a buckling arch structure on the top of pile top crown beams on two sides of the underground excavation station, SBS waterproof coiled materials are arranged on the side edge of the buckling arch structure and attached to the ECB waterproof layer, and reserved SBS waterproof coiled materials are positioned at the top of the buckling arch structure and attached to SBS waterproof coiled materials reserved in the open excavation station structure; the positions related to waterproof construction of the storey-adding connection are provided with pile top crown beams and buckling arch structures of underground excavated subway stations; the buckling arch structure of the underground excavation station is connected with the pile top crown beam of the underground excavation station into a whole; the underground excavated station pile top crown beam and the buckling arch structure are both reinforced concrete structures formed by pouring waterproof concrete.
Further, the ECB waterproof layer consists of a leveling layer, a buffer layer and an ECB waterproof plate; the SBS waterproof layer consists of a leveling layer and SBS coiled materials. Further, base surface treatment is needed when the ECB waterproof layer is laid, projections such as iron pipes, reinforcing steel bars and iron wires on the base surface are cut off at the root part, and C20 fine-stone concrete with the thickness of 7cm is sprayed to serve as a leveling layer; the thickness of the SBS coiled material is 3 mm.
Furthermore, SBS waterproofing membrane, ECB waterproof board, buffer layer, screed-coat and initial structure are laid in proper order outwards to the side of detaining the arch structure.
Further, the cement nails, the plastic round gaskets matched with the ECB waterproof boards and the iron gaskets fix the buffer layer on the leveling layer.
Furthermore, the fixed points of the buffer layer in the ECB waterproof layer are arranged in a regular quincunx shape, the fixed interval is 50-80 cm, the buffer layer is connected by a lap joint method, and the lap joint width is 5 cm.
Further, the ECB waterproof layer adopts the unit weight not less than 400g/m2The geotextile fabric serves as a buffer layer; the thickness of the ECB waterproof plate in the ECB waterproof layer is more than or equal to 2 mm.
Furthermore, the lap joint width of the ECB waterproof plate in the ECB waterproof layer is more than or equal to 10cm, the lap joint is subjected to hot-melting double-weld-seam welding by adopting a special welding machine, the width of each weld seam is more than or equal to 10mm, an inflation cavity is reserved between the two weld seams, the inflation pressure is 0.25Mpa, the pressure is kept for more than or equal to 15 minutes, and the pressure is allowed to be reduced by 10 percent.
Furthermore, the lap joint width of the ECB waterproof layer on the side edge of the buckling arch structure and the SBS waterproof roll is more than or equal to 1 m.
Furthermore, the reserved overlapping width of the SBS waterproof coiled material at the top of the buckling arch structure is more than or equal to 1.5m, and the overlapping width of the SBS waterproof coiled material reserved with the open cut station structure is more than or equal to 1.2 m.
Furthermore, a layer of bamboo plywood is attached to the upper portion of the SBS waterproof coiled material reserved on the top of the buckling arch structure, the width of the bamboo plywood is larger than or equal to 1.2m, and the bamboo plywood is removed when the top of the buckling arch structure and the SBS waterproof coiled material reserved on the open cut station structure are lapped.
Further, the ECB waterproof plate and the SBS waterproof coiled material are fixed by a stainless steel pressing strip, a butyl adhesive tape and cement nails at intervals of 20-25 cm and are arranged in a plum blossom shape, the width of the stainless steel pressing strip is 30mm, and the thickness of the stainless steel pressing strip is 1.0 mm; the thickness of the butyl adhesive tape is not less than 3.0mm, and the length of the cement nail is not less than 7 cm.
The construction method of the waterproof structure at the storey-adding joint of the open-underground excavation combined subway station comprises the following steps:
s1, construction of a waterproof layer inside the small pilot tunnel and construction of an internal structure: after the small pilot tunnel is communicated, pouring side piles, strip foundations and a pile top crown beam, laying an ECB waterproof layer of a bottom longitudinal beam in the lower middle pilot tunnel, pouring the bottom longitudinal beam, adopting an excavated steel pipe column excavated by an artificial hole digging pile partition 3 and an excavated 1, laying an ECB waterproof layer in the upper pilot tunnel, backfilling the upper pilot tunnel to a designed elevation by adopting backfilled concrete, and constructing a top longitudinal beam;
s2, excavating side spans, midspan, laying a waterproof layer of a station roof and a waterproof structure of a layer-adding joint: after the side span and the mid span between the upper small pilot tunnels are excavated, laying a station roof ECB waterproof layer, overlapping the ECB waterproof layer at the top in the upper pilot tunnels in S1, attaching a SBS waterproof coiled material on the inner surface of the ECB waterproof layer at the side edges of the buckling arch structure by adopting an 'external-prevention internal-sticking' method, attaching a bamboo plywood on the upper part of an SBS waterproof coiled material reserved at the top of the buckling arch structure, and pouring an underground excavated station buckling arch structure;
s3, performing subsequent excavation and structure construction of the underground excavation station: excavating soil bodies on the inner sides of the side piles in a layered mode, and constructing an underground excavation station ECB waterproof layer and an underground excavation station structure;
s4, excavating a foundation pit, and applying to an open cut station structure and a waterproof layer: excavating a foundation pit, manually removing a pilot tunnel primary support structure above a top plate of the underground excavation station and internally backfilling concrete, pouring an open excavation station structure, laying an SBS waterproof layer and reserving SBS waterproof coiled materials, removing bamboo plywood pre-embedded in S2, overlapping the reserved SBS waterproof coiled materials of the open excavation station structure with the SBS waterproof coiled materials reserved at the top of the buckling arch structure, and completing the construction of the subway station waterproof structure by opening and closing in a bright and dark mode.
Furthermore, the stubble throwing positions of the SBS waterproof layer and the SBS waterproof coiled material are subject to avoiding of internal and external corners, construction joints and deformation joints, and the SBS waterproof layer and the SBS waterproof coiled material are arranged at positions convenient to operate.
Further, the primary support of the layered excavated soil body in the subsequent excavation of the underground excavated station is broken by adopting an air pick.
Furthermore, the excavation of the foundation pit needs to be carried out according to the site conditions of ' layering, partitioning, blocking and sectioning ', and in-time supporting is carried out, so that the construction without supporting exposure time ' is reduced.
Further, a pneumatic pick is manually adopted to break out a primary support structure of a pilot tunnel above a top plate of the underground excavated station and backfill concrete inside the primary support structure.
Further, the backfill concrete is C20 plain concrete.
Furthermore, the bamboo plywood is clamped between the SBS waterproof coiled material reserved at the top of the buckling arch structure and the backfilled concrete.
The utility model has the beneficial effects that:
1. the construction method of the waterproof structure at the storey-adding joint has strong adaptability, and can be widely applied to the construction of the waterproof layer of the underground storey-adding engineering.
2. The ECB waterproof layer and the SBS waterproof coiled material have high connection strength, and the required materials are common.
3. Guaranteed that the later stage abolishes during undercut station backfill concrete and the first structure undercut waterproof construction not destroyed, effectively solved the light and shade and dug and build the waterproof problem of engineering junction outsourcing jointly to can effectively ensure water-proof effects, bring very big facility for the construction.
4. The ECB waterproof layer, the SBS waterproof coiled material, the SBS waterproof layer and the waterproof concrete structure are combined to form rigid-flexible combination and multiple defense lines, and the combination strength of the SBS waterproof coiled material, the ECB waterproof layer and the station structure main body is high.
5. The technical problems that the urban underground pipelines are more complicated in distribution, low in space resource utilization rate, prone to causing adverse effects in subsequent crossing projects, multiple in waterproof connection nodes and inconvenient to construct due to the fact that the transverse channel is connected are effectively solved.
6. The open cut structure waterproof layer material adopts the SBS waterproof layer which has strong bending capability, high and low temperature resistance, higher elasticity, fatigue resistance and puncture resistance, and is favorable for preventing the waterproof layer from being influenced by earthing and backfilling.
7. The utility model has the advantages of simple construction structure, reasonable design, convenient construction and lower input cost.
Drawings
FIG. 1 is a cross-sectional view of the structure in step S1 according to example 1 of the present invention;
FIG. 2 is a schematic diagram of a waterproof layer structure of an underground excavation station ECB;
FIG. 3 is a cross-sectional view of the structure in step S2 according to embodiment 1 of the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a schematic view of the overlapping of the light and dark cut waterproof layers in example 1 of the present invention;
FIG. 6 is a cross-sectional view of the structure of step S3 according to embodiment 1 of the present invention;
FIG. 7 is a cross-sectional view of the structure of step S4 according to embodiment 1 of the present invention;
fig. 8 is an enlarged structural view at B in fig. 7.
In the figure: 1-small pilot hole; 2-side piling; 3-a bar foundation; 4-pile top crown beam; 5-ECB waterproof layer; 6-bottom stringer; 7-steel pipe column; 8-top longitudinal beam; 9-backfilling concrete; 10-primary branch structure; 11-a leveling layer; 12-a cement nail; 13-iron shim; 14-ECB flashing; 15-plastic round gasket; 16-geotechnical non-woven fabric; 17-side span; 18-SBS waterproof coiled material; 19-stainless steel layering; 20-butyl tape; 21-bamboo plywood; 22-underground excavation of a subway station main body structure; 23-open cut subway station main structure; 24-SBS waterproof layer; 25-buckling arch structure.
Detailed Description
In order to make the construction scheme of the present invention more clearly understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments.
The specific embodiments described herein are merely illustrative of the present invention and do not limit the scope of the utility model.
Examples
A waterproof structure of a layer-added joint of a subway station built by combining light and dark excavation, wherein a main body frame structure of the subway station comprises a main body structure 22 of a subsurface excavated vehicle and a main body structure 23 of an open excavated subway station, an ECB waterproof layer 5 is arranged on the outer side of the main body structure 22 of the constructed subsurface excavated subway station, and an SBS waterproof layer 24 is arranged on the outer side of the main body structure 23 of the constructed open excavated subway station, as shown in figures 4, 5 and 8, the waterproof structure of the layer-added joint is positioned at the connecting position of the side wall of the open excavated structure and the top plate of the subsurface excavated station, and is used for buckling the side edge and the top of an arch structure 25 at the upper part of a crown beam at two sides of the subsurface excavated station, an SBS waterproof coiled material 18 is arranged on the side edge of the arch structure 25 and is attached to the ECB waterproof layer 5, and the SBS waterproof coiled material 18 reserved on the top of the arch structure 25 and is attached to the SBS waterproof coiled material 18 reserved in the open station excavation structure; the positions related to the storey-adding connection waterproof are provided with a pile top crown beam 4 and a buckling arch structure 25 for constructing a subsurface subway station; the underground excavated station pile top crown beam 4 and the buckling arch structure 25 are both reinforced concrete structures formed by pouring waterproof concrete;
the ECB waterproof layer 5 structure is shown in FIG. 2, the ECB waterproof layer 5 needs to process the base surface of the primary support structure 10, projections such as iron pipes, reinforcing steel bars and iron wires on the base surface are cut off at the root part, and C20 fine-stone concrete with the thickness of 7cm is sprayed to serve as a leveling layer 11; the unit weight of the cement nail 12, the plastic round gasket 15 and the iron gasket 13 matched with the ECB waterproof board 14 is not less than 400g/m2The geotechnical non-woven fabric 16 is fixed on a base surface, the fixing points are arranged in a regular quincunx shape, the fixing distance is 50-80 cm, the geotechnical fabrics are connected by a lap joint method, and the lap joint width is 5 cm; the lap joint width between the ECB waterproof boards 14 is more than or equal to 10cm, the lap joint adopts a special welding machine to carry out hot melt double-weld joint welding,the width of each welding line is more than or equal to 10mm, an inflation cavity is reserved between the two welding lines, the inflation pressure is 0.25Mpa, the pressure is kept for not less than 15 minutes, and the pressure is allowed to decrease by 10 percent;
as shown in fig. 4 and 5, a layer of SBS waterproof roll 18 is attached to an ECB waterproof sheet 14 of the ECB waterproof layer 5 at an ECB waterproof layer 5 side of the buckle arch structure by an "outer-waterproof inner-adhesion" method, the ECB waterproof sheet 14 is closely adhered to a water-facing surface of a main structure 22 of an underground excavated subway station, the overlapping width of the two layers is greater than or equal to 1m, the SBS waterproof roll 18 at the overlapping position is fixed by a stainless steel strip 19, a butyl adhesive tape 20 and cement nails 12 at intervals of 20-25 cm, the layers are arranged in a plum blossom shape, the width of the stainless steel strip 19 is 30mm, the thickness of the stainless steel strip is 1.0mm, the thickness of the butyl adhesive tape 20 is greater than or equal to 3.0mm, and the length of the cement nails is greater than or equal to 7 cm; the SBS waterproof roll 18 is reserved with the lap joint width being larger than or equal to 1.5m, covers the top of the buckle arch structure, is attached with a layer of bamboo plywood, is larger than or equal to 1.2m in width, and is removed when the top of the later stage buckle arch structure and the SBS waterproof roll of the open cut station structure are connected. The SBS waterproof roll material 18 reserved in the open cut station structure is in lap joint with the pre-embedded SBS waterproof roll material 18, and the lap joint width is larger than or equal to 1.2 m.
The construction method of the waterproof structure at the added layer connecting part of the light and dark excavation subway station comprises the following steps:
s1, construction of a waterproof layer inside the small pilot tunnel and construction of an internal structure: after the small pilot tunnel 1 is communicated, pouring side piles 2, strip foundations 3 and a pile top crown beam 4, paving an ECB waterproof layer 5 of a bottom longitudinal beam 6 in the lower-layer middle pilot tunnel, pouring the bottom longitudinal beam 6, adopting an excavated steel pipe column 7 excavated by a manual hole digging pile partition 3 and 1, paving an ECB waterproof layer 5 in the upper-layer pilot tunnel, adopting C20 plain concrete to backfill the upper-layer pilot tunnel to a designed elevation and constructing a top longitudinal beam 8, as shown in figure 1;
s2, excavating side spans and mid spans, and paving a waterproof layer of a station roof and a waterproof structure of a layer-adding joint (a light and shade excavation structure joint): after the side span 17 and the middle span between the upper small pilot tunnels 1 are excavated, laying an ECB waterproof layer 5 of a top plate of the side span 17 and the middle span, overlapping the ECB waterproof layer 5 at the top in the upper pilot tunnels 1 in S1, attaching a layer of SBS waterproof coiled material 18 on the inner surface of the ECB waterproof layer 5 at the side edge of the buckling arch structure 25 by adopting an 'external-prevention internal-sticking' method, sandwiching a layer of bamboo plywood 21 with the width of more than 1.2m between the SBS waterproof coiled material 18 reserved at the top of the buckling arch structure 25 and backfilled concrete 9(C20 plain concrete), and pouring the buckling arch structure 25 of the underground excavation station, as shown in figure 3;
s3, performing the following excavation and structure construction of the underground excavation station: excavating soil bodies on the inner sides of the side piles 2 in a layered mode, constructing an underground excavation station ECB waterproof layer 5 and an underground excavation subway station main body structure 22, and showing in fig. 6;
s4, excavating a foundation pit, and constructing an open cut station structure and a waterproof layer: the method comprises the steps of adopting a mode of ' layering, partitioning, sectioning and timely supporting according to site conditions, excavating a foundation pit, manually removing a pilot tunnel primary support structure 10 above a top plate of the underground excavation station and internally backfilling concrete 9, pouring an open excavation vehicle subway station main body structure 23, laying an SBS waterproof layer 24, reserving SBS waterproof rolls, removing early-stage pre-embedded bamboo plywood 21, exposing pre-embedded SBS waterproof rolls 18 (the SBS waterproof rolls 18 reserved at the tops of buckling arch structures), and overlapping the pre-embedded SBS waterproof rolls 18 with the pre-embedded SBS waterproof rolls 18 to complete the construction of the underground station waterproof structure by combining light and shade excavation, wherein the mode of ' layering, partitioning, sectioning and timely supporting is adopted to reduce the exposure time without supporting ', and the pre-embedded SBS waterproof rolls are removed, and the pre-embedded SBS waterproof rolls 18 are removed, so that the pre-embedded SBS waterproof rolls 18 is exposed.
Claims (10)
1. The utility model provides a light and shade digs waterproof construction of built subway station increase layer junction together which characterized in that: an ECB waterproof layer (5) is arranged on the outer side of a main structure (22) of the constructed underground excavated subway station, an SBS waterproof layer (24) is arranged on the outer side of a main structure (23) of the constructed underground excavated subway station, a waterproof structure at the position of a layer-adding joint is positioned at the connecting position of a side wall of the open excavated structure and a top plate of the underground excavated station, and is used for buckling the side edge and the top of an arch structure (25) at the upper part of pile top crown beams (4) at two sides of the underground excavated station, SBS waterproof coiled materials (18) are arranged on the side edge of the arch structure (25) and internally attached to the ECB waterproof layer (5), and reserved SBS waterproof coiled materials (18) are positioned at the top of the arch structure (25) and internally attached to SBS waterproof coiled materials (18) reserved in the open excavated station structure; the waterproof construction related parts of the storey-adding joints are provided with pile top crown beams (4) and buckling arch structures (25) of underground excavated subway stations; the buckling arch structure (25) of the underground excavation station is connected with the pile top crown beam (4) of the underground excavation station into a whole; the underground excavation station pile top crown beam (4) and the buckling arch structure (25) are both reinforced concrete structures formed by pouring waterproof concrete.
2. The waterproof structure of the joint of the added layer of the subway station built by the cut and dark dug method as claimed in claim 1, characterized in that: the ECB waterproof layer (5) consists of a leveling layer (11), a buffer layer and an ECB waterproof plate (14); the SBS waterproof layer (24) consists of a leveling layer (11) and SBS coiled materials.
3. The waterproof structure of the joint of the added layer of the subway station built by the cut and dark dug method as claimed in claim 2, characterized in that: the cement nails (12), the plastic round gaskets (15) and the iron gaskets (13) which are matched with the ECB waterproof boards (14) fix the buffer layer on the leveling layer (11).
4. The waterproof structure of the joint of the added layer of the subway station built by the cut and dark dug method as claimed in claim 3, wherein: the fixed points of the buffer layer are arranged in a regular quincunx shape, and the fixed distance is 50-80 cm.
5. The waterproof structure of the storey-adding junction of the light and dark dug combined subway station as claimed in claim 2 or 3, characterized in that: the buffer layer adopts the weight of more than or equal to 400g/m2The geotextile (16); the thickness of the ECB waterproof board (14) in the ECB waterproof layer (5) is more than or equal to 2 mm.
6. The waterproof structure of the joint of the added layer of the subway station built by the cut and dark dug method as claimed in claim 2, characterized in that: the lap joint width of the ECB waterproof board (14) in the ECB waterproof layer (5) is more than or equal to 10 cm.
7. The waterproof structure of the joint of the added layer of the subway station built by the cut and dark dug method as claimed in claim 1, characterized in that: the lapping width of the ECB waterproof layer (5) at the side of the buckling arch structure (25) and the SBS waterproof roll (18) is more than or equal to 1 m.
8. The waterproof structure of the joint of the added layer of the subway station built by the cut and dark dug method as claimed in claim 1, characterized in that: the reserved overlapping width of the SBS waterproof coiled material (18) at the top of the buckling arch structure (25) is more than or equal to 1.5m, and the overlapping width of the SBS waterproof coiled material (18) reserved with the open cut station structure is more than or equal to 1.2 m.
9. The waterproof structure of the joint of the added layer of the subway station built by the cut and dark dug method as claimed in claim 1, characterized in that: detain SBS waterproofing membrane (18) upper portion that hunch structure (25) top was reserved and attach one deck bamboo offset plate (21), the width more than or equal to 1.2m of bamboo offset plate (21), when the SBS waterproofing membrane (18) of detaining hunch structure (25) top and the overlap joint of the SBS waterproofing membrane (18) that open cut station structure was reserved, get rid of bamboo offset plate (21).
10. The waterproof structure of the added layer joint of the subway station built by the cut and dark cut in the claim 1 is characterized in that: the ECB waterproof plate and the SBS waterproof coiled material (18) on the side of the buckling arch structure (25) are fixed through stainless steel pressing strips (19), butyl adhesive tapes (20) and cement nails (12), the distance is 20-25 cm, and the ECB waterproof plate and the SBS waterproof coiled material are arranged in a plum blossom shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123225402.6U CN216973512U (en) | 2021-12-21 | 2021-12-21 | Waterproof structure of layer-adding joint of open-underground excavation combined construction subway station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123225402.6U CN216973512U (en) | 2021-12-21 | 2021-12-21 | Waterproof structure of layer-adding joint of open-underground excavation combined construction subway station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216973512U true CN216973512U (en) | 2022-07-15 |
Family
ID=82347337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123225402.6U Active CN216973512U (en) | 2021-12-21 | 2021-12-21 | Waterproof structure of layer-adding joint of open-underground excavation combined construction subway station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216973512U (en) |
-
2021
- 2021-12-21 CN CN202123225402.6U patent/CN216973512U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102041800A (en) | Method for constructing PVC (polyvinyl chloride) composite geomembrane watertight core of earth-rockfill dam | |
| CN112982300B (en) | Seepage-proofing and drainage connecting structure for bank asphalt concrete panel and reservoir bottom geomembrane and construction method | |
| CN112376620A (en) | Waterproof treatment method for side wall of underground building structure by reverse construction joint | |
| CN110145364A (en) | A kind of construction method of tunnel water handling structure | |
| CN211080268U (en) | Pile-wall integrated basement exterior wall | |
| CN210238573U (en) | A waterproof construction that is used for open cut station main part and attached junction | |
| CN110374060A (en) | A kind of the reservoir seepage-proofing structure and construction method of rock-fill dams dam facing and earth and stone material backfill bottom storehouse | |
| CN202139571U (en) | Plant protective river foundation structure | |
| CN216973512U (en) | Waterproof structure of layer-adding joint of open-underground excavation combined construction subway station | |
| CN106677821B (en) | A kind of pin-connected panel tunnel-liner behind circle draining construction and its implementation method | |
| CN112901205A (en) | Soft rock large-span tunnel double-layer superposed lining support removing method and structure | |
| CN114263215B (en) | Construction method for building waterproof structure at storey-added connection part of subway station by combined excavation and excavation | |
| CN216077128U (en) | Subway double-layer full-section freezing underground excavation transfer station structure | |
| KR101171037B1 (en) | Method for compartmentalized tunnel waterproofing | |
| CN113187487B (en) | Construction method of double-layer full-section frozen underground excavation station structure of subway | |
| CN206571526U (en) | A kind of pin-connected panel tunnel-liner behind circle draining construction | |
| CN213926387U (en) | Simple plugging structure for reserved sleeve of underground structure outer wall | |
| CN212453367U (en) | Plant roof height movement joint department and prevent root thorn connected node structure | |
| CN213572061U (en) | Waterproof overlap joint structure of new and old underground works bottom plate | |
| CN215210870U (en) | Seepage-proofing and drainage connecting structure for asphalt concrete panel of reservoir bank and geomembrane at reservoir bottom | |
| CN111779503A (en) | Triple baffling type partition waterproof structure of underground excavation tunnel | |
| KR20090065407A (en) | High elastic composite waterproof sheet | |
| CN219637955U (en) | Cover digs contrary board and props and envelope waterproof node structure of doing | |
| CN216739576U (en) | Two wall unification formula underground continuous wall waterproof construction structures of reverse construction method engineering | |
| CN212202065U (en) | Tunnel structure suitable for composite stratum with upper soft layer and lower hard layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |