CN116950133A - Waterproof structure for connection node of new and old underground structures and construction method of waterproof structure - Google Patents
Waterproof structure for connection node of new and old underground structures and construction method of waterproof structure Download PDFInfo
- Publication number
- CN116950133A CN116950133A CN202310720241.2A CN202310720241A CN116950133A CN 116950133 A CN116950133 A CN 116950133A CN 202310720241 A CN202310720241 A CN 202310720241A CN 116950133 A CN116950133 A CN 116950133A
- Authority
- CN
- China
- Prior art keywords
- underground
- waterproof
- layer
- plate
- top plate
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 239000012528 membrane Substances 0.000 claims abstract description 19
- 238000004078 waterproofing Methods 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 147
- 230000003014 reinforcing effect Effects 0.000 claims description 46
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000002985 plastic film Substances 0.000 claims description 17
- 229920006255 plastic film Polymers 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 13
- 239000003973 paint Substances 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 239000012945 sealing adhesive Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 238000007788 roughening Methods 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 23
- 230000000694 effects Effects 0.000 abstract description 14
- 238000012946 outsourcing Methods 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples
Abstract
The application relates to a waterproof structure for a new and old underground structure connection node and a construction method thereof, which relate to the field of underground engineering waterproof construction, and comprise a water stop plate fixed on a ground connection wall, wherein the water stop plate is used for being arranged at a subsequent connection position of an underground structure top plate and an underground space bottom plate; still include the waterproofing membrane spare, the waterproofing membrane spare is followed the direction of height setting of wall is even to the ground, the waterproofing membrane spare with the wall is even to the ground the stagnant water board and the underground structure roof is all contradicted, the stagnant water board is used for preventing to abolish destroy when even the wall the waterproofing membrane spare, the stagnant water board with the waterproofing membrane spare is used for jointly in abolishing even the wall after folding down to the bottom of underground space bottom plate. The waterproof plate can protect the waterproof coiled material piece from being damaged when the underground continuous wall is broken, and the waterproof plate and the waterproof coiled material piece are folded and paved on the bottom plate of the underground space to serve as a waterproof structure of a newly built underground space and a constructed subway station engineering, so that the waterproof plate has the effect of convenient construction.
Description
Technical Field
The application relates to the field of underground engineering waterproof construction, in particular to a waterproof structure for a new and old underground structure connecting node and a construction method thereof.
Background
With the acceleration of the urban process, more and more urban traffic tools are proposed, and subways are an important part of modern cities, which are rapid, efficient, environment-friendly and convenient. Different from the constructional engineering on the ground, the subway engineering is carried out underground due to the main structure, so that the requirements of usability and durability are met, and the waterproof performance of the station structure is very high.
At present, the construction of the constructed subway station engineering is usually to firstly construct a diaphragm wall as a water-intercepting, seepage-proofing and bearing enclosure structure, secondly attach waterproof coiled materials on the diaphragm wall as a waterproof structure, and then perform the construction of an underground structure top plate of the subway on the basis of the diaphragm wall, wherein the waterproof structure is used as the waterproof construction of the connecting node of the diaphragm wall and the underground structure top plate of the subway to meet the waterproof requirement. However, with population growth and continuous expansion of urban scale, subway lines are continuously newly increased, existing subway transfer stations cannot meet current demands, and new underground spaces are required to expand existing subway stations to meet increasing people flow.
In the prior art, in the process of newly building an underground space, structural connection is needed to be carried out with a constructed subway station engineering, the underground continuous wall is needed to be broken before structural connection, then a newly built underground space bottom plate is constructed, and the newly built underground space bottom plate and the broken part of the underground continuous wall are poured together to realize connection construction with an underground structure top plate of an existing subway. However, the existing waterproof structure is damaged in the process of breaking the underground continuous wall, namely, the underground space bottom plate, the underground structure top plate and the waterproof structure between the underground continuous wall are required to be re-constructed so as to meet the waterproof requirement, so that a large amount of manpower and material resources are required to be consumed for waterproof construction of the connecting nodes, the workload is large, and the time is long.
Disclosure of Invention
The application provides a waterproof structure for a new and old underground structure connection node and a construction method thereof, aiming at solving the problem that the original waterproof structure is destroyed and the construction needs to be re-performed in the process of structurally connecting a newly built underground space with a constructed subway station engineering.
The application provides a waterproof structure for a new and old underground structure connection node and a construction method thereof, which adopts the following technical scheme:
the waterproof structure for the connection node of the new underground structure and the old underground structure comprises a water stop plate fixed on a ground connection wall, wherein the water stop plate is used for being arranged at the subsequent connection position of the top plate of the underground structure and the bottom plate of the underground space; still include the waterproofing membrane spare, the waterproofing membrane spare is followed the direction of height setting of wall is even to the ground, the waterproofing membrane spare with the wall is even to the ground the stagnant water board and the underground structure roof all contradicts, the stagnant water board is used for preventing to abolish destroy when even the wall is even to the ground waterproofing membrane spare, the stagnant water board with the waterproofing membrane spare is used for jointly after abolishing even the wall to the bending of underground space bottom plate one side is folded and is spread to the bottom of underground space bottom plate.
By adopting the technical scheme, during construction, the water stop plate is arranged at the subsequent connection position of the underground structure top plate and the underground space bottom plate, the water stop plate is fixed on the underground connecting wall, the waterproof coiled material piece is attached, the waterproof coiled material piece is arranged along the height direction of the underground connecting wall, and the waterproof coiled material piece is abutted against the underground connecting wall, the water stop plate and the underground structure top plate, so that the whole underground connecting wall and the underground structure top plate are waterproof; when a new underground space is built, the underground continuous wall is broken, at the moment, the waterproof coiled material can be effectively protected from being damaged due to the arrangement of the waterproof plate, and after the underground continuous wall is broken, the waterproof plate and the waterproof coiled material are bent towards one side of the bottom plate of the underground space and folded and paved to the bottom of the bottom plate of the underground space, namely the waterproof between the underground continuous wall and the top plate of the underground structure as well as between the waterproof plate and the bottom plate of the underground space can be realized; the method can solve the problem that the original waterproof structure is damaged and needs to be re-constructed in the process of structural connection between a newly built underground space and a constructed subway station engineering, has the effect of convenient construction, is convenient and effective to form outsourcing waterproof, reduces hidden danger of water leakage of later-stage connecting nodes, guarantees waterproof quality in the construction process, reduces the difficulty of water prevention of later-stage node construction when not pre-buried, saves personnel, equipment and materials, shortens the construction period and improves economic benefit.
In a specific embodiment, the waterproof construction method comprises a structural waterproof layer attached to the ground connection wall, the structural waterproof layer extends to the water stop plate, and the waterproof construction method further comprises a waterproof reinforcement layer attached to one side, close to the underground structural roof, of the water stop plate, and the waterproof reinforcement layer extends to the structural waterproof layer.
Through adopting above-mentioned technical scheme, during the construction, fix the stagnant water board on the ground even on the wall, attach the structure waterproof layer on the ground even on the wall again, extend one of them side of structure waterproof layer and attach on the stagnant water board, attach waterproof enhancement layer on the stagnant water board again, waterproof enhancement layer extends and attaches on the structure waterproof layer, structure waterproof layer and waterproof enhancement layer realize the no seepage connection between whole ground even wall and the underground structure roof promptly to can promote waterproof quality.
In a specific embodiment, a plastic film layer is disposed on a side of the waterproof reinforcement layer adjacent to the top plate of the underground structure, and the plastic film layer is used for separating the waterproof reinforcement layer from the top plate of the underground structure.
Through adopting above-mentioned technical scheme, utilize the setting of plastic film layer, can play the effect of separating waterproof enhancement layer and underground structure roof when pouring the underground structure roof, can ensure that the later stage is broken even the wall and is turned up waterproof enhancement layer and use.
In a specific embodiment, the waterproof roll further comprises a sealing glue layer for sealing a gap between the waterproof roll member and the underground structure top plate and the underground space bottom plate.
Through adopting above-mentioned technical scheme, utilize the clearance between sealing glue layer sealed waterproofing membrane spare and the underground structure roof and the underground space bottom plate to reduce and lead to the fact the hidden danger of leaking water between waterproofing membrane spare and the underground structure roof and the underground space bottom plate after breaking the wall bending waterproofing membrane spare even.
In a specific embodiment, the method further comprises a grouting pipe, wherein the grouting pipe is used for being arranged at the position of the ground continuous wall broken part.
Through adopting above-mentioned technical scheme, utilize the setting of slip casting pipe, when the water infiltration new construction underground space's in-process with the seam between the subway station engineering of having been under construction, can be through the effect of slip casting pipe injection thick liquid shutoff realization seal seam, make things convenient for stagnant water leaking stoppage.
In a specific embodiment, a waterproof paint layer is further included, and the waterproof paint layer is used for being coated on the top plate of the underground structure after the underground continuous wall is broken.
Through adopting above-mentioned technical scheme, after breaking the diaphragm wall, with waterproof coating layer coating on the underground structure roof, can strengthen the waterproof of underground structure roof and follow-up underground space bottom plate connected node, prevent the seepage.
In a specific embodiment, the method further comprises a water stop bar, wherein the water stop bar is used for being arranged at the subsequent connection position of the top plate of the underground structure and the bottom plate of the underground space.
By adopting the technical scheme, after the underground continuous wall is broken, the water stop strip is placed at the subsequent connection position of the top plate of the underground structure and the bottom plate of the underground space, and the water stop strip can realize the effect of reinforcing the water resistance of the connection node.
In a specific embodiment, the water stop plate is fixed on the ground connection wall through waterproof nails.
By adopting the technical scheme, after the water stop plate is attached to the ground connection wall, the water stop plate is fixed on the ground connection wall by utilizing the waterproof shooting nail, so that later construction is facilitated.
The construction method for the connection node of the new and old underground structures comprises the following steps:
firstly, constructing an underground structure roof and a waterproof structure, binding reinforcing bars of the underground structure roof, reserving subsequent connecting reinforcing bars, arranging a sleeve, attaching a water stop plate to a part of the underground wall, which is positioned at a reserved connecting node between a bottom plate of an underground space and the underground structure roof, using waterproof shooting nails to fix the water stop plate on the underground wall, paving and attaching a structural waterproof layer on the underground wall, paving and attaching a waterproof reinforcing layer on one side of the water stop plate far away from the underground wall, paving and attaching a waterproof reinforcing layer on the structural waterproof layer, then pasting a plastic film layer on one side of the reinforcing waterproof layer far away from the water stop plate, and pouring concrete of the underground structure roof;
step two, excavating a newly built underground space bottom plate to a designed elevation, and breaking out concrete of a reserved connection node part of the underground space bottom plate and the underground structure top plate of the underground continuous wall;
bending the water stop plate and the waterproof reinforcing layer to one side of the newly built underground space and turning the water stop plate and the waterproof reinforcing layer outwards to the newly built underground space bottom plate cushion layer, and sealing the waterproof reinforcing layer, the underground structure top plate and the underground space bottom plate cushion layer through the sealing adhesive layer;
step four, roughening and cleaning the junction part of the top plate of the underground structure, and coating a waterproof paint layer on the roughened surface of the top plate of the underground structure after cleaning;
binding the bottom plate steel bars of the underground space, connecting the bottom plate steel bars of the underground space with the top plate steel bars of the reserved underground structure through reserved sleeves, and reinforcing the bottom plate steel bars of the underground space and the top plate steel bars of the reserved underground structure by arranging water stop bars;
step six, grouting pipes are pre-buried at the joint of the underground space bottom plate and the underground structure top plate, so that later water stopping and leakage stopping are facilitated;
and seventh, pouring concrete at the joint part of the underground space bottom plate and the underground structure top plate together.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when a new underground space is needed and a ground continuous wall is broken, the waterproof roll material can be effectively protected from being damaged, after the ground continuous wall is broken, the waterproof roll material and the waterproof roll material are bent towards one side of the bottom plate of the underground space and are folded and paved to the bottom of the bottom plate of the underground space, namely the waterproof between the ground continuous wall and the top plate of the underground structure and between the waterproof roll material and the bottom plate of the underground space can be realized; the method can solve the problem that the original waterproof structure is damaged and needs to be re-constructed in the process of structurally connecting the newly built underground space and the constructed subway station engineering, has the effect of convenient construction, is convenient and effective to form outsourcing waterproof, reduces hidden danger of water leakage of later-stage connecting nodes, ensures waterproof quality in the construction process, reduces the difficulty of water prevention of later-stage nodes when not pre-buried, saves personnel, equipment and materials, shortens construction period and improves economic benefit;
2. after the underground continuous wall is broken, gaps among the waterproof coiled material piece, the top plate of the underground structure and the bottom plate of the underground space are sealed through the sealant layer, so that hidden danger of water leakage among the waterproof coiled material piece, the top plate of the underground structure and the bottom plate of the underground space caused by bending the waterproof coiled material piece after the underground continuous wall is broken can be reduced;
3. when water permeates into joints between the newly built underground space and the constructed subway station engineering, the effect of sealing the joints can be achieved by injecting slurry into the slurry plug through the grouting pipe, and water stopping and plugging are facilitated.
Drawings
Fig. 1 is a schematic structural view of a waterproof structure for a connection node of old and new underground structures according to the present application.
Fig. 2 is an enlarged view of a portion a in fig. 1.
FIG. 3 is a schematic view of the structure of the top plate of the underground structure and the bottom plate of the underground space according to the present application.
Fig. 4 is an enlarged view of a portion B in fig. 3.
Reference numerals illustrate: 1. a ground connecting wall; 111. a dashed box; 2. a roof of an underground structure; 3. a floor of the underground space; 4. a water stop plate; 5. a waterproof coiled material piece; 51. a structural waterproof layer; 52. a waterproof reinforcing layer; 6. a plastic film layer; 7. a sealant layer; 8. grouting pipe; 9. a water stop strip; 10. a waterproof paint layer; 11. reinforcing steel bars of the bottom plate of the underground space; 12. roof steel bars of underground structures; 13. a sleeve.
Detailed Description
The application is described in further detail below with reference to fig. 1-2.
Example 1
Referring to fig. 1 and 2, the embodiment of the application discloses a waterproof structure for a connection node of a new underground structure and an old underground structure, which comprises a water stop plate 4 for being attached to a diaphragm wall 1, in the embodiment, the water stop plate 4 can be, but is not limited to, a galvanized sheet iron plate with the thickness of 0.5mm, the water stop plate 4 is used for being arranged at a subsequent connection position of a top plate 2 of the underground structure and a bottom plate 3 of the underground space, and the water stop plate 4 is fixed on the diaphragm wall 1 through waterproof shooting nails; the waterproof roll member 5 is further included, the waterproof roll member 5 comprises a structural waterproof layer 51 attached to the underground continuous wall 1, in this embodiment, the structural waterproof layer 51 may be, but is not limited to, an ethylene propylene diene monomer rubber self-adhesive waterproof roll layer of 2mm, the structural waterproof layer 51 is arranged along the height direction of the underground continuous wall 1, and the structural waterproof layer 51 extends onto the water stop plate 4 and is attached to the water stop plate 4;
the waterproof roll member 5 further includes a waterproof reinforcing layer 52, in this embodiment, the waterproof reinforcing layer 52 may be, but is not limited to, an ethylene propylene diene monomer rubber self-adhesive waterproof roll layer of 2mm, the waterproof reinforcing layer 52 is attached to one side of the water stop plate 4 close to the underground structure top plate 2, the waterproof reinforcing layer 52 is disposed along the height direction of the water stop plate 4, the waterproof reinforcing layer 52 extends onto the structure waterproof layer 51 and is attached to the structure waterproof layer 51, and one side of the structure waterproof layer 51 attached to the water stop plate 4 is sandwiched between the water stop plate 4 and the waterproof reinforcing layer 52; the side of the waterproof reinforcement layer 52 away from the water stop plate 4 is provided with a plastic film layer 6, in this embodiment, the plastic film layer 6 may be, but is not limited to, a PVC plastic film layer, and the side of the plastic film layer 6 away from the waterproof reinforcement layer 52 is abutted against the underground structure top plate 2, and the plastic film layer 6 is used for separating the waterproof reinforcement layer 52 from the underground structure top plate 2;
referring to fig. 1 and 3, the area indicated by the dashed frame 111 is a subsequent breaking area of the underground diaphragm, the water stop plate 4 is used for preventing the structural waterproof layer 51 and the waterproof reinforcing layer 52 from being broken when the underground diaphragm 1 is broken, and after the underground diaphragm 1 is broken, the water stop plate 4, the structural waterproof layer 51 and the waterproof reinforcing layer 52 are folded toward the side of the underground space bottom plate 3 and folded to the bottom of the underground space bottom plate 3; therefore, leakage-free connection and enhanced waterproof between the underground diaphragm wall 1 and the underground structure top plate 2 and the underground space bottom plate 3 can be realized, the problem that the original waterproof structure needs to be re-constructed when the new underground space is structurally connected with the constructed subway station engineering is solved, the waterproof is conveniently and effectively formed, hidden danger of water leakage of later-stage connection nodes is reduced, and waterproof quality in the construction process is guaranteed.
Referring to fig. 3, the waterproof reinforcement structure further comprises a sealing adhesive layer 7, in this embodiment, the sealing adhesive layer 7 may be, but is not limited to, a water-swellable polyurethane water-stop adhesive layer, and the sealing adhesive layer 7 is used for sealing gaps between the waterproof reinforcement layer 52 and the underground structure top plate 2 and the underground space bottom plate 3 after the underground continuous wall 1 is broken; thus, the risk of water leakage between the waterproof reinforcement layer 52 and the underground structure top plate 2 and the underground space bottom plate 3 after bending the waterproof reinforcement layer 52 can be reduced.
Referring to fig. 3, the grouting device further comprises a grouting pipe 8, in this embodiment, the grouting pipe 8 may be, but is not limited to, a full-section grouting pipe, the grouting pipe 8 is used for being arranged at the position of the broken part of the diaphragm wall 1, in this embodiment, an overflow hole and a grouting pinhole are arranged on the grouting pipe 8, the overflow hole is used for injecting waterproof materials, and the grouting pinhole is used for facilitating the butt joint with a grouting machine; when water permeates into the joint between the newly built underground space and the constructed subway station engineering, the waterproof material can be injected into the grouting pipe 8 for plugging, so that the effect of sealing the joint is realized, and water stopping and plugging are facilitated.
Referring to fig. 3 and 4, the waterproof paint layer 10 is further included, in which the waterproof paint layer 10 may be, but is not limited to, a cement-based permeable crystalline waterproof paint layer, and the waterproof paint layer 10 is used to be coated on a surface of the underground structure roof 2 near the underground structure wall 1 after the underground structure roof 1 is broken; therefore, the waterproof performance between the connection nodes of the top plate 2 of the underground structure and the bottom plate 3 of the subsequent underground space can be enhanced, and the effect of enhancing leakage prevention is achieved.
Referring to fig. 3 and 4, the underground structure further comprises a water stop strip 9, in this embodiment, the water stop strip 9 is a water expansion water stop strip, and the water stop strip 9 is used for being arranged at the subsequent connection position of the underground structure top plate 2 and the underground space bottom plate 3; when water permeates into the joint between the newly built underground space and the constructed subway station engineering, the water stop strip 9 swells when meeting water, so that water is prevented from entering the joint, and the waterproof effect of the joint between the underground structure top plate 2 and the underground space bottom plate 3 is further enhanced.
The implementation principle of the embodiment 1 is as follows: when in construction, the water stop plate 4 is arranged at the subsequent connection position of the underground structure top plate 2 and the underground space bottom plate 3, the water stop plate 4 is attached to the underground structure top plate 1, the water stop plate 4 is fixed on the underground structure top plate 1 by waterproof shooting nails, then the structural waterproof layer 51 is attached to the underground structure top plate 2, one side of the structural waterproof layer 51 extends and is attached to the water stop plate 4, then the waterproof reinforcing layer 52 is attached to the water stop plate 4, the waterproof reinforcing layer 52 extends and is attached to the structural waterproof layer 51, the structural waterproof layer 51 and the waterproof reinforcing layer 52 realize no-leakage connection between the whole underground structure top plate 2 and the underground structure top plate 1, finally the plastic film layer 6 is attached to the waterproof reinforcing layer 52, so that concrete construction of the underground structure top plate 2 can be carried out, at this moment, the plastic film layer 6 can separate the waterproof reinforcing layer 52 from the underground structure top plate 2, and the waterproof layer 52 and the structural waterproof layer 51 are used as waterproof structures between the underground structure top plate 2 and the underground structure top plate 1 after construction is completed, and the waterproof requirements between the underground structure top plate 2 and the underground structure top plate 2 are met;
when a new underground space is needed to be newly built and the underground continuous wall 1 is broken, the waterproof coiled material 5 can be effectively protected from being broken due to the arrangement of the water stop plate 4, and after the underground continuous wall 1 is broken, the water stop plate 4, the structural waterproof layer 51 and the waterproof reinforcing layer 52 are bent towards one side of the underground space bottom plate 3 and are folded and paved on the bottom cushion layer of the underground space bottom plate 3, and in the process, the waterproof reinforcing layer 52 can be smoothly torn off from the concrete surface of the underground structure top plate 2 due to the arrangement of the plastic film layer 6;
sealing gaps between the waterproof reinforcing layer 52 and the underground structure top plate 2 and between the waterproof reinforcing layer and the underground space bottom plate 3 by using the sealant layer 7, coating the waterproof coating layer 10 on the surface of the underground structure top plate 2, which is close to one side of the underground continuous wall 1, placing the water stop strips 9 at the subsequent connection position of the underground structure top plate 2 and the underground space bottom plate 3, and finally arranging the grouting pipe 8 at the position of the broken part of the underground continuous wall 1 so as to facilitate the subsequent grouting, water stop and leakage stoppage, namely, the waterproof between the underground continuous wall 1 and the underground structure top plate 2 and between the underground space bottom plate 3 can be realized, and finally, the broken parts of the underground space bottom plate 3 and the underground continuous wall 1 can be constructed together;
the waterproof structure for the connection node of the new underground structure can solve the problem that the original waterproof structure is damaged and the construction needs to be re-performed in the process of structurally connecting the new underground space with the constructed subway station engineering; and the waterproof demand between the underground continuous wall 1 and the underground structure roof 2 can be satisfied in the earlier stage, only need buckle original stagnant water board 4, structure waterproof layer 51 and waterproof enhancement layer 52 when newly-built underground space in later stage, roll over and spread, can satisfy the waterproof demand between the underground continuous wall 1 and underground structure roof 2 and the underground space bottom plate 3, the effect of convenient construction has, can be convenient effectual formation outsourcing waterproof, reduce the hidden danger of later stage connected node percolating water, guarantee waterproof quality in the work progress, reduce the later stage node and apply waterproof difficult point when not pre-buried, personnel, equipment and material all obtain practicing thrift, the time limit for a project is shortened, and economic benefits is improved.
Example 2
The construction method for the connection node of the new and old underground structures comprises the following steps:
firstly, constructing an underground structure roof 2 and a waterproof structure, binding an underground structure roof steel bar 12, reserving a subsequent connecting steel bar, and arranging a sleeve 13, wherein in the embodiment, the sleeve 13 can be but is not limited to a straight thread sleeve, attaching a water stop plate 4 to a part of the underground structure roof 2, which is positioned at a reserved connecting node of the underground space bottom plate 3 and the underground structure roof 2, fixing the water stop plate 4 on the underground structure roof 1 by waterproof shooting nails, paving and attaching a structural waterproof layer 51 on the underground structure roof 1, paving and attaching a structural waterproof layer 51 on the water stop plate 4, paving and attaching a waterproof reinforcing layer 52 on one side of the water stop plate 4 away from the underground structure roof 1, paving the waterproof reinforcing layer 52 on the structural waterproof layer 51, and then, pouring a plastic film layer 6 on one side of the reinforcing waterproof layer away from the water stop plate 4, and pouring concrete of the underground structure roof 2;
step two, excavating a newly built underground space bottom plate 3 to a designed elevation, and breaking concrete of a connecting node part of the underground space bottom plate 3 and the underground structure top plate 2, wherein in the embodiment, a broken area of the underground continuous wall 1 is an area pointed by a broken line frame 111, and in the process of breaking the underground continuous wall 1, vertical steel bars of the broken part of the underground continuous wall 1 are reserved;
bending the water stop plate 4 and the waterproof reinforcing layer 52 to one side of the newly built underground space and outwards turning over the cushion layer of the newly built underground space bottom plate 3, and sealing the waterproof reinforcing layer 52, the underground structure top plate 2 and the cushion layer of the underground space bottom plate 3 through the sealing adhesive layer 7;
step four, roughening and cleaning the connecting node part of the top plate 2 of the underground structure, and coating a waterproof paint layer 10 on the roughened surface of the top plate 2 of the underground structure after cleaning;
binding the bottom plate steel bars 11 of the underground space, connecting and fixing the bottom plate steel bars 11 of the underground space and the reserved top plate steel bars 12 of the underground structure through reserved sleeves 13, and reinforcing the bottom plate steel bars 11 of the underground space and the reserved top plate steel bars 12 of the underground structure through arranging water stop bars 9;
step six, pre-burying a grouting pipe 8 at the joint of the underground space bottom plate 3 and the underground structure top plate 2, wherein in the embodiment, the grouting pipe 8 can be, but is not limited to, a full-section grouting pipe, and one grouting pipe 8 is arranged along the structure direction of the underground continuous wall 1 by 5-6 meters, so that later water stop and leakage stoppage are facilitated;
and seventh, pouring concrete at the joint part of the underground space bottom plate 3 and the underground structure top plate 2 together, and concrete at the underground space bottom plate 3.
The waterproof requirement between the underground continuous wall 1 and the underground structure top plate 2 can be met by arranging the water stop plate 4, the structural waterproof layer 51 and the waterproof reinforcing layer 52 between the underground continuous wall 1 and the underground structure top plate 2; when a new underground space is needed to be built in the later period and the underground continuous wall 1 is broken to be connected in structure, the water stop plate 4 can effectively protect the structural waterproof layer 51 and the waterproof reinforcing layer 52 from being damaged, so that the problem that the original waterproof structure is damaged and the construction needs to be re-constructed in the process of connecting the new underground space and the constructed subway station engineering is solved; and through turning over and spreading stagnant water board 4 and structure waterproof layer 51 and waterproof enhancement layer 52 to newly-built underground space bottom plate 3, can realize the waterproof between underground continuous wall 1, underground structure roof 2 and the underground space bottom plate 3, have the effect of convenient construction, can convenient effectual formation outsourcing waterproof, reduce the hidden danger of later stage connected node water leakage, guarantee waterproof quality in the work progress, reduce the later stage node when not pre-buried and apply waterproof difficult point, practice thrift the cost, shorten the time limit for a project, improve economic benefits.
The sealing glue layer 7, the water stop strip 9 and the waterproof coating layer 10 can also strengthen the waterproof of the connection node of the underground structure top plate 2 and the subsequent underground space bottom plate 3, so that the hidden danger of water leakage between the waterproof reinforcing layer 52 and the underground structure top plate 2 after the waterproof reinforcing layer 52 is bent by breaking the underground continuous wall 1 is further reduced; the application can provide a remedy means in the later water leakage phenomenon in time, and when water permeates into the joint between the newly built underground space and the constructed subway station engineering, the arrangement of the embedded grouting pipe 8 can timely perform grouting to plug so as to realize the effect of sealing the joint, thereby being convenient for stopping water and plugging.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (9)
1. A waterproof construction for new old underground structure connected node, its characterized in that: the underground structure comprises a water stop plate (4) fixed on an underground continuous wall (1), wherein the water stop plate (4) is arranged at the subsequent connection position of an underground structure top plate (2) and an underground space bottom plate (3); still include waterproofing membrane spare (5), waterproofing membrane spare (5) are followed the direction of height of wall (1) is even to the ground sets up, waterproofing membrane spare (5) with wall (1) even the stagnant water board (4) and underground structure roof (2) all contradict, stagnant water board (4) are used for preventing to abolish destroy when even wall (1) waterproofing membrane spare (5), stagnant water board (4) with waterproofing membrane spare (5) are used for jointly in abolishing even wall (1) back to underground space bottom plate (3) one side is buckled and is folded and spread to the bottom of underground space bottom plate (3).
2. The waterproof structure for a connection node of old and new underground structures according to claim 1, wherein: the waterproof structure comprises a structural waterproof layer (51) attached to the underground continuous wall (1), wherein the structural waterproof layer (51) extends to the water stop plate (4), the waterproof structure further comprises a waterproof reinforcing layer (52) attached to one side, close to the underground structural roof (2), of the water stop plate (4), and the waterproof reinforcing layer (52) extends to the structural waterproof layer (51).
3. The waterproof structure for a connection node of old and new underground structures according to claim 2, wherein: the waterproof reinforcement layer (52) is close to one side of the underground structure top plate (2) and is provided with a plastic film layer (6), and the plastic film layer (6) is used for separating the waterproof reinforcement layer (52) and the underground structure top plate (2).
4. The waterproof structure for a connection node of old and new underground structures according to claim 1, wherein: still include sealing glue film (7), sealing glue film (7) are used for sealing waterproofing membrane spare (5) with underground structure roof (2) and the clearance between underground space bottom plate (3).
5. The waterproof structure for a connection node of old and new underground structures according to claim 1, wherein: the underground diaphragm wall is characterized by further comprising a grouting pipe (8), wherein the grouting pipe (8) is used for being arranged at the position of the broken part of the underground diaphragm wall (1).
6. The waterproof structure for a connection node of old and new underground structures according to claim 1, wherein: the underground structure roof board (2) is characterized by further comprising a waterproof coating layer (10), wherein the waterproof coating layer (10) is used for being coated on the underground structure roof board (2) after the underground structure wall (1) is broken.
7. The waterproof structure for a connection node of old and new underground structures according to claim 1, wherein: the underground structure is characterized by further comprising a water stop strip (9), wherein the water stop strip (9) is arranged at the subsequent connection position of the underground structure top plate (2) and the underground space bottom plate (3).
8. The waterproof structure for a connection node of old and new underground structures according to claim 1, wherein: the water stop plate (4) is fixed on the ground connecting wall (1) through waterproof shooting nails.
9. The construction method for the connection node of the new and old underground structures is characterized by comprising the following steps of: the method comprises the following steps: firstly, constructing an underground structure top plate (2) and a waterproof structure, binding an underground structure top plate reinforcing steel bar (12), reserving a subsequent connecting steel bar, arranging a sleeve (13), attaching a water stopping plate (4) to a part of the underground space bottom plate (3) and the underground structure top plate (2), which are reserved with connecting nodes, fixing the water stopping plate (4) on the underground structure top plate (1) by waterproof shooting nails, paving and attaching a structural waterproof layer (51) on the underground structure top plate (1), paving and attaching a structural waterproof layer (51) on the water stopping plate (4), paving and attaching a waterproof reinforcing layer (52) on one side of the water stopping plate (4) far from the underground structure top plate (1), paving a waterproof reinforcing layer (52) on the structural waterproof layer (51), and pasting a plastic film layer (6) on one side of the reinforced waterproof layer far from the water stopping plate (4), and pouring concrete of the underground structure top plate (2); step two, excavating a newly built underground space bottom plate (3) to a designed elevation, and breaking out concrete of a reserved connection node part of the underground space bottom plate (3) and the underground structure top plate (2) of the underground connecting wall (1); bending the water stop plate (4) and the waterproof reinforcing layer (52) to one side of the newly built underground space and outwards turning the water stop plate and the waterproof reinforcing layer to the cushion layer of the newly built underground space bottom plate (3), and sealing the waterproof reinforcing layer (52) and the cushion layer of the underground structure top plate (2) and the underground space bottom plate (3) through the sealing adhesive layer (7); step four, roughening and cleaning the connecting node part of the top plate (2) of the underground structure, and coating a waterproof paint layer (10) on the roughened surface of the top plate (2) of the underground structure after cleaning; binding the bottom plate steel bars (11) of the underground space, connecting the bottom plate steel bars (11) of the underground space with the top plate steel bars (12) of the reserved underground structure through reserved sleeves (13), and reinforcing the bottom plate steel bars (11) of the underground space and the top plate steel bars (12) of the reserved underground structure by arranging water stop bars (9); step six, grouting pipes (8) are pre-buried at the joint of the underground space bottom plate (3) and the underground structure top plate (2), so that water and leakage stopping in the later stage are facilitated; and seventh, pouring concrete at the joint part of the underground space bottom plate (3) and the underground structure top plate (2) and concrete at the underground space bottom plate (3) together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310720241.2A CN116950133A (en) | 2023-06-16 | 2023-06-16 | Waterproof structure for connection node of new and old underground structures and construction method of waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310720241.2A CN116950133A (en) | 2023-06-16 | 2023-06-16 | Waterproof structure for connection node of new and old underground structures and construction method of waterproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116950133A true CN116950133A (en) | 2023-10-27 |
Family
ID=88452012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310720241.2A Pending CN116950133A (en) | 2023-06-16 | 2023-06-16 | Waterproof structure for connection node of new and old underground structures and construction method of waterproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116950133A (en) |
-
2023
- 2023-06-16 CN CN202310720241.2A patent/CN116950133A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110607809B (en) | Waterproof construction method for basement of building engineering | |
| CN106120873B (en) | A kind of construction method of pile-raft foundation pre-installed and inverted adhered composite high-molecular waterproof roll | |
| CN110878700B (en) | Tunnel waterproof structure and construction method thereof | |
| CN108397200B (en) | Formula construction method is done after metro station tunnel linkage segment structure | |
| CN106703084A (en) | Waterproofing treatment method and system of construction joint structure of plane and elevation structure junction areas of basement | |
| CN106930331A (en) | The waterproof construction system and its construction method at underground pipe gallery expansion joint | |
| CN105862873A (en) | Construction method of underground water prevention and exterior wall structures of narrow space of deep foundation pit | |
| CN108842817A (en) | A kind of subway station overlays waterproof roll structure and its construction technology | |
| CN212003197U (en) | Subway station tunnel door ring beam seepage-proofing drainage construction structure | |
| CN211547827U (en) | Waterproof structure at joint of concrete bottom plates of new and old buildings | |
| CN205557856U (en) | Leakage structure is prevented at building expansion joint | |
| CN106988440B (en) | Waterproof structure for main body and auxiliary interface of subway station and construction method of waterproof structure | |
| CN100416006C (en) | Method for constructing water-proof telescopic seam between new and old concrete building joints and structure thereof | |
| CN105862928A (en) | Post-cast strip outer wall in-advance water stopping treatment structure and construction process thereof | |
| CN211312492U (en) | Prestressed pipe pile head waterproof structure and pipe pile head | |
| CN107386298A (en) | A kind of depth hole composite supporting construction and its construction method with water-proof function | |
| CN110541431A (en) | waterproof structure of pipe gallery and construction method thereof | |
| CN105780940A (en) | Building expansion joint anti-seeping structure | |
| CN113152430A (en) | Uplift pile head node waterproof structure serving as temporary stand column and construction method | |
| CN110145038B (en) | Construction process for sealing waterproof coiled material through pressure grouting | |
| CN206616711U (en) | A kind of waterproof construction at subway station main body and accessory interface | |
| CN209397743U (en) | New-old concrete works intersection stitches waterproof construction | |
| CN210049292U (en) | Advanced water stop pouring belt structure for building | |
| CN116950133A (en) | Waterproof structure for connection node of new and old underground structures and construction method of waterproof structure | |
| CN103628506B (en) | Construction method for waterproof positions of foundation platform and pile head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |