CN112392073A - Self-waterproof structure without seam and wrapping structure and construction method thereof - Google Patents
Self-waterproof structure without seam and wrapping structure and construction method thereof Download PDFInfo
- Publication number
- CN112392073A CN112392073A CN202011419257.2A CN202011419257A CN112392073A CN 112392073 A CN112392073 A CN 112392073A CN 202011419257 A CN202011419257 A CN 202011419257A CN 112392073 A CN112392073 A CN 112392073A
- Authority
- CN
- China
- Prior art keywords
- bottom plate
- prestressed steel
- self
- seam
- concrete
- 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
Images
Classifications
-
- 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
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
Abstract
The invention discloses a self-waterproof structure without a seam and an outer-wrapping structure and a construction method thereof, wherein the self-waterproof structure comprises a soil layer, reinforced concrete is arranged on the soil layer, a brick bed film with a lower groove structure is arranged in the reinforced concrete, plastering layers are arranged on the inner side and the two surfaces of the top of the brick bed film, and the brick bed film is provided with a concrete cushion layer; the reinforced concrete is also provided with prestressed steel strands which are wrapped by the corrugated pipe and are fixedly connected in a pre-buried manner through tensioning end anchoring systems at two ends; the tensioning end anchoring system comprises a base plate and a spiral rib. The prestressed steel strand is additionally arranged in the bottom plate, the prestress technology is utilized to apply prestress, so that the formation of cracks can be reduced or even avoided, the self-waterproof capability of the structure is effectively improved, the basement bottom plate becomes a seamless prestressed concrete structure member by applying the prestress, further, the construction procedures of an externally wrapped waterproof coiled material and a waterproof protective layer outside a post-pouring belt of the bottom plate can be omitted, the construction period is greatly saved, the cost is reduced, and the engineering quality is effectively improved.
Description
Technical Field
The invention relates to a self-waterproof structure without a seam and an outer-wrapping-free structure, and belongs to the technical field of constructional engineering.
Background
At present house building engineering basement bottom plate waterproofing construction all adopts outer wrapping waterproofing membrane + structure from waterproof mode, but if a infiltration of ordinary outer wrapping waterproofing can lead to all the other regional strings of water, there is the crack in the basement bottom plate, can lead to the large tracts of land seepage after the string of water, the waterproof of basement bottom plate mainly relies on the structure from waterproof, under the general condition, adopts impervious concrete mode to improve the structure from waterproof ability, nevertheless does not establish the seam bottom plate to overlength, only adopts impervious concrete hardly to solve the flexible fracture problem of structure.
Disclosure of Invention
The invention aims to solve the problem of providing a self-waterproof structure without a seam and an outer-wrapping-free structure and a construction method thereof, so as to overcome the defects in the prior art.
The technical scheme of the invention is as follows:
a self-waterproof structure without a seam and an outer-wrapping structure comprises a soil layer, wherein reinforced concrete is arranged on the soil layer, a brick bed course with a lower groove structure is arranged in the reinforced concrete, plastering layers are arranged on the inner side and the top of the brick bed course, and a layer of concrete cushion is arranged above and below the brick bed course; the reinforced concrete is also provided with prestressed steel strands which are wrapped by the corrugated pipe and are fixedly connected in a pre-buried manner through tensioning end anchoring systems at two ends; the tensioning end anchoring system comprises a base plate and a spiral rib.
Furthermore, the base plate is fixedly connected with the anchor plate and the gasket, the prestressed steel strand and the corrugated pipe on the outer side of the prestressed steel strand are anchored by the anchor plate, and an elastic ring is arranged between the prestressed steel strand and the anchor plate.
Furthermore, the spiral ribs are spirally arranged on the backing plate in a multi-turn mode around the outer side of the corrugated pipe, and polystyrene board foam sleeves are arranged on the peripheries of the backing plate and the spiral ribs.
Furthermore, the prestressed steel strand bends downwards towards the inner side of the brick moulding bed at the brick moulding bed.
The construction method of the self-waterproof structure without the seam and the outer-wrapping structure comprises the following steps:
1) carrying out bottom plate earthwork excavation according to the designed elevation, manually cleaning and leveling a foundation trench, and reserving a working surface;
2) paving a pouring concrete cushion layer on the surface of the foundation trench, and collecting light from the primary pulp;
3) building a cushion cover brick moulding bed on the concrete cushion layer according to the design;
4) plastering on the inner side and the top of the brick moulding bed, polishing and maintaining the primary pulp in time; backfilling silt between the brick moulding bed and the foundation trench, compacting, pouring a bottom plate cushion layer, polishing and maintaining in time by using primary pulp;
5) laying bearing platform steel bars and bottom plate bottom bars on the surface of the bottom plate cushion according to design requirements;
6) laying and fixing prestressed steel strands on the foundation of the bearing platform and the bottom plate reinforcement;
7) after the prestressed steel strand is laid, laying bottom plate gluten, and checking and accepting;
8) after the gluten of the bottom plate is laid, a fixed end anchoring system and a stretching end anchoring system are pre-embedded;
9) arranging a polystyrene board foam sleeve on the anchorage device (a);
10) after the polystyrene board foam sleeve is arranged, carrying out concrete pouring and curing on a bearing platform and a bottom plate;
11) after concrete pouring of the bearing platform and the bottom plate is finished and the strength of the concrete reaches the design requirement, tensioning and anchoring the prestressed steel strands;
12) after the prestress tension, the corrugated pipe is washed, impurities in the pore channel are discharged, and pore channel grouting is carried out.
And 5) laying the bearing platform steel bars and the bottom plate steel bars in step 5), wherein the prestressed steel strands need to be coordinated for laying, the prestressed steel strand rise positioning bars are buried, and the prestressed steel strand rise positioning bars are welded and fixed with the bottom plate or the bearing platform steel bars. The prestressed steel strand can be constructed by adopting a post-tensioning method, the prestressed steel strand is penetrated by a corrugated pipe, and the prestressed steel strand is arranged in a curve shape. The fixed end anchoring system and the tensioning end anchoring system (a) adopt a clamping piece type. The corrugated pipe is a metal corrugated pipe, and the corrugated pipe is fixed by stirrup reinforcing steel bars, so that the corrugated pipe flows in a curve. Step 9), embedding a cavity die at the end part of the anchor (a) by adopting a concave embedding method; the cavity mold is made of a polystyrene board foam sleeve.
Compared with the prior art, the invention has the beneficial effects that: the prestressed steel strand is additionally arranged in the bottom plate, the prestress technology is utilized to apply prestress, so that the formation of cracks can be reduced or even avoided, the self-waterproof capability of the structure is effectively improved, the basement bottom plate becomes a seamless prestressed concrete structure member by applying the prestress, further, the construction procedures of an externally wrapped waterproof coiled material and a waterproof protective layer outside a post-pouring belt of the bottom plate can be omitted, the construction period is greatly saved, the cost is reduced, and the engineering quality is effectively improved.
Drawings
Fig. 1 shows a schematic plan view according to an embodiment of the invention.
Fig. 2 shows a schematic cross-sectional view according to an embodiment of the invention.
Fig. 3 shows a schematic drawing of tension end pre-embedding according to an embodiment of the present invention.
1-soil layer; 2-concrete cushion; 3-brick moulding bed; 4-plastering layer; 5-a corrugated pipe; 6-prestressed steel strands; 7-reinforced concrete; 8-a base plate; 9-a spiral rib; 10-anchor plate; 11-a gasket; 12-an elastic ring; 13-polystyrene board foam jacket.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, the waterproof structure of the invention comprises a soil layer 1, reinforced concrete 7 is arranged on the soil layer 1, a brick bed film 3 with a lower groove structure is arranged in the reinforced concrete 7, plastering layers 4 are arranged on the inner side and the two surfaces of the top of the brick bed film 3, and a layer of concrete cushion 2 is arranged above and below the brick bed film 3; a prestressed steel strand 6 is also arranged in the reinforced concrete 7, and the prestressed steel strand 6 is wrapped by the corrugated pipe 5 and is embedded, connected and fixed by the tensioning end anchoring systems at the two ends; the tensioning end anchoring system comprises a shim plate 8 and a spiral rib 9.
As shown in fig. 3, the backing plate 8 is fixedly connected to an anchor plate 10 and a gasket 11, the anchor plate 10 anchors the prestressed steel strand 6 and the corrugated pipe 5 outside the prestressed steel strand 6, and an elastic ring 12 is disposed between the prestressed steel strand 6 and the anchor plate 10. The spiral ribs 9 are spirally arranged around the outer side of the corrugated pipe 5 at the position of the backing plate 8 in a plurality of circles, and polystyrene board foam sleeves 13 are arranged on the peripheries of the backing plate 8 and the spiral ribs 9.
The specific construction method comprises the following steps:
carrying out earth excavation on a bottom plate according to a designed elevation, manually cleaning and leveling a foundation trench, and reserving a working surface of a brick moulding bed 3, wherein the base elevation is the bottom plate surface elevation, the bottom plate thickness and the cushion layer thickness; paving and pouring a first concrete cushion layer 2 on the surface of the foundation trench, and polishing and curing the primary pulp; building a cushion cap brick moulding bed 3 on the first concrete cushion layer 2 according to design requirements; plastering mortar is adopted on the inner side and the top of the brick moulding bed 3 to form a plastering layer 4, and the primary pulp is smoothed and maintained in time; backfilling soil between the brick moulding bed 3 and the foundation trench, layering and compacting, pouring a bottom plate cushion layer according to design requirements, polishing raw pulp and maintaining in time; laying a bearing platform and a non-prestressed reinforcement of a bottom plate on the surface of the cushion according to design requirements, arranging cushion blocks on the bottom reinforcement of the non-prestressed reinforcement according to the thickness and the requirements of a designed protective layer, arranging the cushion blocks at intervals of 500-1000 mm properly, and arranging a special split heads reinforcement for the non-prestressed reinforcement; the metal corrugated pipe 5 is penetrated on the basis of the bearing platform and the bottom rib of the bottom plate, the corrugated pipe 5 is positioned by adopting a positioning steel bar and is raised, the positioning steel bar is welded and fixed with the non-prestressed steel bar at the bottom of the bottom plate, and the positioning steel bar can be made of steel bars with the diameter of 10-14 mm, so that the corrugated pipe 5 flows in a curve shape; after the prestressed steel strands 6 are laid, laying bottom plate surface layer steel bars; after the bottom plate gluten is laid, pre-burying a fixed end anchoring system and a tensioning end anchoring system of the prestressed steel strand 6; the anchorage device a is wrapped by a polystyrene board foam sleeve; after the polystyrene board foam sleeve is arranged, carrying out concrete pouring and curing on a bearing platform and a bottom plate; after concrete pouring of a bearing platform and a bottom plate is finished and the strength of the concrete reaches the design requirement, tensioning and anchoring the prestressed steel strand 6, mainly controlling the stress, and measuring a tensioning elongation value for checking; after the prestress tensioning, the corrugated pipe 5 is washed, impurities in the pore channel are removed, the pore channel grouting is carried out, the overhanging steel strand is cut before grouting, and the length of the prestress steel strand 6 exposed outside the anchorage device a is controlled to be 30-50 mm.
Wherein, the fixed end anchoring system clamp can adopt a P-type extrusion anchor, and the stretching end is embedded and installed in an inward concave manner; the fixed end anchoring system clamp can adopt a P-type extrusion anchor, and the stretching end is embedded and installed in an inwards concave mode; the joint of the pressure plate of the grouting pipe and the metal corrugated pipe 5 is tightly wound and sealed by using a plastic adhesive tape to prevent slurry leakage, and the grouting pipe is bent 200-300 mm higher than the concrete surface of the component; the prestressed tensioning primary tensioning end is anchored by 0 → 10% sigma con → 105% sigma con (load holding 2min) → sigma con → anchoring; and (3) performing secondary grouting after the primary grouting for 3 hours, discharging clear water separated out from the cement paste pressed in for the first time, and manually replenishing the grout after 24 hours to ensure that the pore channel is finally full and dense.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a do not establish seam and exempt from outer packaging structure from waterproof construction, its characterized in that: the concrete-filled brick is characterized by comprising a soil layer (1), reinforced concrete (7) is arranged on the soil layer (1), a brick bed film (3) with a lower groove structure is arranged in the reinforced concrete (7), two surfaces of the inner side and the top of the brick bed film (3) are provided with plastering layers (4), and the brick bed film (3) is provided with a layer of concrete cushion (2); a prestressed steel strand (6) is also arranged in the reinforced concrete (7), and the prestressed steel strand (6) is wrapped by the corrugated pipe (5) and is embedded, connected and fixed by the tensioning end anchoring systems at the two ends; the tensioning end anchoring system comprises a base plate (8) and a spiral rib (9).
2. The seam-free and outsourcing-free structure self-waterproof structure according to claim 1, wherein: the base plate (8) is fixedly connected with the anchor plate (10) and the gasket (11) to form an anchorage device (a), the prestressed steel strand (6) and the corrugated pipe (5) on the outer side of the prestressed steel strand (6) are anchored by the anchor plate (10), and an elastic ring (12) is arranged between the prestressed steel strand (6) and the anchor plate (10).
3. The seam-free and outsourcing-free structure self-waterproof structure according to claim 1, wherein: the spiral ribs (9) are spirally arranged around the outer side of the corrugated pipe (5) at the position of the backing plate (8) in a plurality of circles, and polystyrene board foam sleeves (13) are arranged on the peripheries of the backing plate (8) and the spiral ribs (9).
4. The seam-free and outsourcing-free structure self-waterproof structure according to claim 1, wherein: the prestressed steel strands (6) are bent downwards towards the inner side of the brick moulding bed (3) at the brick moulding bed (3).
5. A construction method of a self-waterproofing structure of a seamless wrap-free structure according to any one of claims 1 to 4, comprising the steps of:
1) carrying out bottom plate earthwork excavation according to the designed elevation, manually cleaning and leveling a foundation trench, and reserving a working surface;
2) paving a pouring concrete cushion layer (2) on the surface of the foundation trench, and collecting light from the primary pulp;
3) building a brick bed course (3) on the concrete cushion layer (2) according to the design;
4) plastering on the inner side and the top of the brick moulding bed, polishing and maintaining the primary pulp in time; backfilling silt between the brick moulding bed (3) and the foundation trench, compacting, pouring a bottom plate cushion layer, polishing the primary pulp and maintaining in time;
5) laying bearing platform steel bars and bottom plate bottom bars on the surface of the bottom plate cushion according to design requirements;
6) laying and fixing prestressed steel strands (6) on the foundation of the bearing platform and the bottom plate bottom ribs;
7) after the prestressed steel strand (6) is laid, laying bottom plate gluten, and checking and accepting;
8) after the gluten of the bottom plate is laid, a fixed end anchoring system and a stretching end anchoring system are pre-embedded;
9) arranging a polystyrene board foam sleeve (13) on the anchorage device (a);
10) after the polystyrene board foam sleeve (13) is arranged, carrying out concrete pouring and curing on a bearing platform and a bottom plate;
11) after concrete pouring of the bearing platform and the bottom plate is finished and the strength of the concrete reaches the design requirement, tensioning and anchoring the prestressed steel strands (6);
12) after the prestress tensioning, the corrugated pipe (5) is washed, impurities in the pore channel are discharged, and pore channel grouting is carried out.
6. The construction method of the self-waterproofing structure without a seam and an outer covering structure according to claim 5, characterized in that: and 5) laying the bearing platform steel bars and the bottom plate steel bars by utilizing the prestressed steel strands (6), embedding the vector height positioning bars of the prestressed steel strands (6), and welding and fixing the vector height positioning bars of the prestressed steel strands (6) and the bottom plate or the bearing platform steel bars.
7. The construction method of the self-waterproofing structure without a seam and an outer covering structure according to claim 5, characterized in that: the prestressed steel strand (6) can be constructed by adopting a post-tensioning method, the prestressed steel strand (6) is penetrated and bundled by adopting a corrugated pipe (5), and the prestressed steel strand (6) is arranged in a curve shape.
8. The construction method of the self-waterproofing structure without a seam and an outer covering structure according to claim 5, characterized in that: the fixed end anchoring system and the tensioning end anchoring system (a) adopt a clamping piece type.
9. The construction method of the self-waterproofing structure without a seam and an outer covering structure according to claim 5, characterized in that: the corrugated pipe (5) is a metal corrugated pipe, and the corrugated pipe (5) is fixed by a stirrup reinforcing steel bar in a measure manner, so that the corrugated pipe flows in a curve.
10. The construction method of the self-waterproofing structure without a seam and an outer covering structure according to claim 5, characterized in that: step 9), embedding a cavity die at the end part of the anchor (a) by adopting a concave embedding method; the cavity mould is made of a polystyrene board foam sleeve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419257.2A CN112392073A (en) | 2020-12-07 | 2020-12-07 | Self-waterproof structure without seam and wrapping structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011419257.2A CN112392073A (en) | 2020-12-07 | 2020-12-07 | Self-waterproof structure without seam and wrapping structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112392073A true CN112392073A (en) | 2021-02-23 |
Family
ID=74604421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011419257.2A Pending CN112392073A (en) | 2020-12-07 | 2020-12-07 | Self-waterproof structure without seam and wrapping structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112392073A (en) |
-
2020
- 2020-12-07 CN CN202011419257.2A patent/CN112392073A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101946044A (en) | Construction of a wind energy plant | |
| CN108660952B (en) | Pushing installation method of prefabricated concrete automobile box | |
| CN205776348U (en) | A kind of overlapping monoblock type pipe gallery prefabricated assembly structural | |
| CN113123332B (en) | Post-tensioned slow-setting main reinforcement pressure type uplift action pile and preparation method thereof | |
| CN112647537A (en) | Pipe gallery construction process | |
| CN102808414B (en) | Bonded post-tensioned prestressed anchoring construction method for cast-in-place concrete structure | |
| CN112832279B (en) | Waterproof structure and method for dewatering well of underground foundation pit | |
| CN111691418A (en) | Anti-floating anchor cable waterproof structure and construction method thereof | |
| CN108824230B (en) | Method for reinforcing underwater bridge pier by FRP pipe | |
| CN110552371A (en) | Construction method for eliminating horizontal construction joints of annular lining wall based on reverse construction method | |
| CN105756100A (en) | Basement post-pouring belt system and making method thereof | |
| CN214169172U (en) | Self-waterproof structure without seam and wrapping structure | |
| CN101200918A (en) | Pre-seal structure of post-subsidence pouring belt and construction method thereof | |
| CN112392073A (en) | Self-waterproof structure without seam and wrapping structure and construction method thereof | |
| CN111042843A (en) | Pre-anchoring method for underground excavated tunnel | |
| CN112281860B (en) | Inner lining wall structure and construction method thereof | |
| CN211773818U (en) | Prestressed concrete annular foundation and external prestressed reinforcement structure thereof | |
| CN111139856B (en) | External prestressed tendon structure, prestressed concrete annular foundation and construction method thereof | |
| CN114809000A (en) | Rapid construction method of prefabricated plate brick moulding bed | |
| CN210315409U (en) | Lossless type connection structure of cut-off wall and block concrete | |
| CN219930957U (en) | Anti-floating anchor rod fixing and waterproof device | |
| CN112458915A (en) | Construction method of bent cap | |
| CN211231880U (en) | Pouring type pouring construction structure for vertical drainage pipeline | |
| CN219653866U (en) | Inspection shaft and HDPE winding reinforcing pipe connection structure | |
| CN220099832U (en) | Reinforcing structure for under-dam drainage culvert |
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 |