CN111535369A - Anti-floating fixer for blind pipe and anti-floating construction process using same - Google Patents
Anti-floating fixer for blind pipe and anti-floating construction process using same Download PDFInfo
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- CN111535369A CN111535369A CN202010465757.3A CN202010465757A CN111535369A CN 111535369 A CN111535369 A CN 111535369A CN 202010465757 A CN202010465757 A CN 202010465757A CN 111535369 A CN111535369 A CN 111535369A
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- blind
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- 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
- E02D31/10—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 soil pressure or hydraulic pressure
- E02D31/12—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 soil pressure or hydraulic pressure against upward hydraulic pressure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses an anti-floating fixer for a blind pipe and an anti-floating construction process using the same. The invention can effectively fix the blind pipe, avoid the dislocation of the joint and the displacement of the blind pipe and realize the purpose of firmly fixing the whole blind pipe drainage ring network. The blind pipe is prevented from shifting and the joint is prevented from being misplaced when the pebbles are backfilled, the construction process is simplified, the survival at one time is ensured, the reworking is avoided, the construction cost is effectively reduced, and the construction time is greatly saved.
Description
Technical Field
The invention relates to the technical field of building construction industry, in particular to an anti-floating fixer for a blind pipe and an anti-floating construction process using the same.
Background
Technical scheme of prior art
Adopt the blind pipe to dredge secret confined water, form from drainage system and reduce groundwater to the whole buoyancy of underground structure, guarantee that the structure fracture that produces because of buoyancy is too big, uplift phenomenon can not appear after the underground structure construction is accomplished, guarantee security, the durability of underground structure in the later stage use. By utilizing the characteristics of high porosity and good durability of the blind pipes, a unique and communicated underground downstream self-drainage precipitation ring network is formed around the underground garage, so that the water pressure of underground water is utilized to actively reduce the anti-floating water level of the underground structure, the buoyancy of underground water is released, and the influence of the buoyancy of underground water on the garage structure is reduced.
The anti-floating blind pipe adopts plastic tubing (thermoplasticity synthetic resin) to bury underground forever, form and fall drainage system, reduce groundwater to the buoyancy of underground structure, prevent that ground water level from to the buoyancy of underground structure and causing the destruction of structure, the anti-floating blind pipe in underground wraps up whole pipe parcel with geotechnological cloth, lay with the assigned position, with taking off the nail between blind pipe and the blind pipe firmly, backfill closely knit with the cobble on every side, wrap up geotechnological cloth outside the plastic tubing and prevent clay and sand jam plastic tubing, influence later stage dewatering effect.
According to the traditional method for fixing and butting the blind pipes, the blind pipes are firmly nailed by the cramps, the blind pipes are prone to deviation when pebbles are backfilled, the joints are staggered, the pebbles are not prone to being dug out after the blind pipes are staggered, the cramps are prone to damaging the blind pipes when the blind pipes are displaced, and a self-drainage ring net cannot be formed after the joints are staggered, so that the drainage effect is affected.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the anti-floating fixer for the blind pipe and the anti-floating construction process using the same solve the problems that the blind pipe is easy to deviate in the traditional blind pipe construction process, and the blind pipe is not firmly fixed and is easy to damage.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an anti-floating fixer for a blind pipe comprises an arc-shaped metal sheet and two metal connecting pieces, wherein the two metal connecting pieces are respectively fixed at two ends of the arc-shaped metal sheet.
The arc-shaped metal sheet is made of galvanized flat steel, and the metal connecting piece is made of galvanized flat steel
Round steel, a metal connecting piece is welded on the arc-shaped metal sheet,
the anti-floating construction process utilizing the anti-floating fixer for the blind pipe comprises the following steps:
3, paving a layer of 60-200mm particles above the 0.5-2 mm particle layer in the step 2, paving blind pipes on the 60-200mm particles according to a construction process, sleeving a plurality of arc-shaped metal sheets which are distributed at intervals along the length direction of the blind pipes on the outer wall of the topmost blind pipe, fixing metal connecting pieces at two ends of each arc-shaped metal sheet, vertically inserting the metal connecting pieces into the 60-200mm particles below the blind pipes along the tangential direction of the blind pipes at the bottom layer to fix the blind pipes, continuously paving the 60-200mm particles after the blind pipes are fixed and accepted, till a 60-200mm particle layer is formed, and clamping the blind pipes in the 60-200mm layer;
and 5, paving a backfill soil layer on the 0.5-2 mm particle layer in the step 4 until the highest construction position is reached.
Geotextiles are laid between the particle layer of 60-200mm and the particle layer of 0.5-2 mm, two adjacent geotextiles are in lap joint and are matched, the lap joint length of the geotextile is 250-350mm so as to ensure the filtering effect, the edges of the geotextiles are fixed by coal gangue bricks through blank pressing, and the distance between two adjacent coal gangue bricks is 950-1050 mm so as to avoid the movement of the geotextile caused in the construction process.
The 0.5mm-2mm particle layers are paved in a coarse sand layered backfilling compaction mode, and the thickness of each 0.5mm-2mm particle layer is 960-1100 mm.
The granular layer of 60-200mm is formed by paving pebbles, firstly, pebble layers with the thickness not less than 300mm are paved on the geotextile by utilizing the pebbles, the blind pipes are paved and fixed on the pebble layers according to the blind pipe construction process, and the pebbles are backfilled on the two sides of the blind pipes after the blind pipes are qualified by inspection until the thickness of the pebble layers reaches 1200-1400 mm.
The backfill soil layer is formed by the following steps of: 9, backfilling and tamping the lime soil layer by layer.
The interval between two adjacent arc-shaped metal sheets is not more than 1500mm, and the arc-shaped metal sheets are arranged at the positions which are 160mm away from the blind pipe interface 120 so as to achieve the effect of integrally fixing the blind pipe and prevent the situations of displacement and joint dislocation in the blind pipe construction process.
The depth of the metal connecting piece inserted into the particle layer of 60-200mm is not less than 200 mm.
And 3, wrapping geotextile on the outer wall of the blind pipe after the butt joint of the blind pipe is finished, and firmly binding the geotextile on the two sides of the blind pipe joint through binding wires so as to avoid the geotextile scattering influence on the filtering effect in the process of backfilling pebbles.
The invention has the beneficial effects that: the invention can effectively fix the blind pipe, avoid the dislocation of the joint and the displacement of the blind pipe and realize the purpose of firmly fixing the whole blind pipe drainage ring network. The blind pipe is prevented from shifting and the joint is prevented from being misplaced when the pebbles are backfilled, the construction process is simplified, the survival at one time is ensured, the reworking is avoided, the construction cost is effectively reduced, and the construction time is greatly saved.
The invention has the beneficial effects that: the invention can effectively fix the blind pipe, avoid the dislocation of the joint and the displacement of the blind pipe and realize the purpose of firmly fixing the whole blind pipe drainage ring network. The blind pipe is prevented from shifting and the joint is prevented from being misplaced when the pebbles are backfilled, the construction process is simplified, the survival at one time is ensured, the reworking is avoided, the construction cost is effectively reduced, and the construction time is greatly saved.
Drawings
FIG. 1 is a cross-sectional view of a blind drain system according to the present invention.
Fig. 2 shows the fixing mode of the fixator in the two blind pipe states in the invention.
Fig. 3 shows the fixing mode of the fixator in the three blind pipe states in the invention.
Fig. 4 is a schematic structural view of the anchor of the present invention.
Fig. 5 is a schematic view of the fastener installation at the joint.
Fig. 6 is a schematic view of the installation of the whole fixer on the blind pipe.
Graphic notation: 1. backfilling the soil layer; 2. a coarse sand layer; 3. a pebble layer; 4. a blind pipe; 5. a geotextile layer; 6. an arc-shaped metal sheet; 7. and (3) a metal connecting piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An anti-floating fixer for blind pipe is composed of 40-4 galvanized flat steel and two segments
Of round steel, two sections
The round steel is respectively welded at two ends of the 40-4 galvanized flat steel.
The anti-floating construction process utilizing the anti-floating fixer for the blind pipe comprises the following steps:
and 3, paving geotextile above the coarse sand layer 2 in the step 2 to form a geotextile layer 5, wherein two adjacent geotextiles are in lap joint fit, the lap joint length of the geotextile is 300mm, the longer the lap joint is, the better the effect is, but the higher the cost is, the edge of the geotextile is fixed by pressing edges of gangue bricks, the distance between the two adjacent gangue bricks is 1000mm, the smaller the distance is, the better the effect is, but the relative cost is higher, then paving 350 mm-thick pebbles on the geotextile, popping up a blind pipe elevation control line on the upper part of the outer wall of the garage, strictly controlling the elevation according to the control line, reserving the drainage gradient of the blind pipe 4, then paving blind pipes on 60-200mm particles according to a construction process, strictly adopting the blind pipes made of thermoplastic synthetic resin according to the design requirements, wherein the outer diameter of the blind pipes is 300mm, and the wall. After butt-jointing the blind pipes, sheathing geotextile, wrapping the geotextile with 300mm wide geotextile at the joint, firmly binding the geotextile at two sides by binding wires so as to prevent the geotextile at the joint from scattering when backfilling pebbles and influence the filtering effect, sheathing the outer wall of the topmost blind pipe 4 by a plurality of arc-shaped metal sheets 6 which are distributed at intervals along the length direction of the blind pipe, fixing metal connecting pieces 7 at two ends of the arc-shaped metal sheets, vertically inserting the metal connecting pieces 7 into a pebble layer 3 below the blind pipe along the tangential direction of the blind pipe at the bottom layer to fix the blind pipe 4, laying the blind pipe 4 in a single-layer tiled mode in the graph 2, sheathing the arc-shaped metal sheets on the two blind pipes 4, leading out the metal connecting pieces 7 from two sides of the two blind pipes 4 to be inserted into the pebble layer, or adopting multi-layer stacking as shown in the graph 3, increasing the number of the blind pipes from top to bottom layer by layer, sheathing the arc-shaped metal sheets on the, then inserting a metal connecting piece into the pebble bed 3 from two sides of a lower-layer blind pipe, wherein the distance between two arc-shaped metal sheets 6 is not more than 1500mm, arc-shaped metal sheets are arranged at positions 150mm away from a connector of a blind pipe 4, specifically, as shown in fig. 6, the arc-shaped metal sheets 6 are arranged at positions 150mm away from the connector of the blind pipe, then adding the two arc-shaped metal sheets 6 at intervals along the length direction of the blind pipe, the distances between the four arc-shaped metal sheets 6 are 1200mm, 1300mm and 1200mm respectively, the smaller the distance is, the better the fixing effect is, but the higher the cost is, meanwhile, the metal connecting piece 7 is inserted into the pebbles to the depth of 300mm, the deeper the inserting is, the better the fixing effect is, but the higher the cost is, after the blind pipe 4 is fixed and accepted, sand eggs should be simultaneously backfilled at two sides of the blind pipe, the situation that the installed blind pipe is laterally, The small excavator is matched with artificial backfilling to ensure the quality of the blind pipes and backfilled pebbles, the pebble layer with the thickness of 1300 is continuously paved with pebble particles until the blind pipes are clamped in the pebble layer, and geotextile is paved on the upper part of the pebble layer to form a geotextile layer 5;
and 5, backfilling soil on the coarse sand layer 2 according to the level of the site field in the step 4, wherein the specific construction process for forming the backfilled soil layer 1 is the same as that in the step 1. And the finished product is protected, so that the water path is ensured to be smooth.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an anti fixer that floats that blind pipe was used which characterized in that: the metal connecting piece is composed of a section of arc-shaped metal sheet and two sections of metal connecting pieces, wherein the two sections of metal connecting pieces are respectively fixed at two ends of the arc-shaped metal sheet.
2. An anti-floating anchor for blind canals according to claim 1, wherein: the arc-shaped metal sheet is made of galvanized flat steel, and the metal connecting piece is made of galvanized flat steel
Round steel, and the metal connecting piece is welded on the arc-shaped metal sheet.
3. The anti-floating construction process of the anti-floating fixer for the blind pipe, which is used by the method of claim 1, is characterized in that: the method comprises the following steps:
step 1, paving a backfill soil layer;
step 2, paving a granular layer of 0.5mm-2mm on the backfill soil layer in the step 1;
3, paving a layer of 60-200mm particles above the 0.5-2 mm particle layer in the step 2, paving blind pipes on the 60-200mm particles according to a construction process, sleeving a plurality of arc-shaped metal sheets which are distributed at intervals along the length direction of the blind pipes on the outer wall of the topmost blind pipe, fixing metal connecting pieces at two ends of each arc-shaped metal sheet, vertically inserting the metal connecting pieces into the 60-200mm particles below the blind pipes along the tangential direction of the blind pipes at the bottom layer to fix the blind pipes, continuously paving the 60-200mm particles after the blind pipes are fixed and accepted, till a 60-200mm particle layer is formed, and clamping the blind pipes in the 60-200mm layer;
step 4, paving a 0.5mm-2mm particle layer on the 60-200mm particle layer in the step 3 again;
and 5, paving a backfill soil layer on the 0.5-2 mm particle layer in the step 4 until the highest construction position is reached.
4. The anti-floating construction process using the anti-floating fixture for blind pipes according to claim 3, wherein: geotextiles are laid between the particle layer of 60-200mm and the particle layer of 0.5-2 mm, two adjacent geotextiles are in lap joint and match, the lap joint length of the geotextiles is 250-350mm, the edges of the geotextiles are fixed by coal gangue bricks through blank pressing, and the distance between two adjacent coal gangue bricks is 950-1050 mm.
5. The anti-floating construction process using the anti-floating fixture for blind pipes according to claim 3, wherein: the 0.5mm-2mm particle layers are paved in a coarse sand layered backfilling compaction mode, and the thickness of each 0.5mm-2mm particle layer is 960-1100 mm.
6. The anti-floating construction process using the anti-floating fixture for blind pipes according to claim 3, wherein: the granular layer of 60-200mm is formed by paving pebbles, firstly, pebble layers with the thickness not less than 300mm are paved on the geotextile by utilizing the pebbles, the blind pipes are paved and fixed on the pebble layers according to the blind pipe construction process, and the pebbles are backfilled on the two sides of the blind pipes after the blind pipes are qualified by inspection until the thickness of the pebble layers reaches 1200-1400 mm.
7. The anti-floating construction process using the anti-floating fixture for blind pipes according to claim 3, wherein: the backfill soil layer is formed by the following steps of: 9, backfilling and tamping the lime soil layer by layer.
8. The anti-floating construction process using the anti-floating fixture for blind pipes according to claim 3, wherein: the distance between two adjacent arc-shaped metal sheets is not more than 1500mm, and the arc-shaped metal sheets are arranged at positions 120 mm away from the blind pipe interface and 160mm away from the blind pipe interface.
9. The anti-floating construction process using the anti-floating fixture for blind pipes according to claim 3, wherein: the depth of the metal connecting piece inserted into the particle layer of 60-200mm is not less than 200 mm.
10. The anti-floating construction process using the anti-floating fixture for blind pipes according to claim 3, wherein: and 3, after the butt joint of the blind pipes is finished, the outer walls of the blind pipes are wrapped with geotextile, and the geotextile on two sides of the blind pipe joints are firmly tied through binding wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010465757.3A CN111535369A (en) | 2020-05-28 | 2020-05-28 | Anti-floating fixer for blind pipe and anti-floating construction process using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010465757.3A CN111535369A (en) | 2020-05-28 | 2020-05-28 | Anti-floating fixer for blind pipe and anti-floating construction process using same |
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| CN111535369A true CN111535369A (en) | 2020-08-14 |
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| CN202010465757.3A Pending CN111535369A (en) | 2020-05-28 | 2020-05-28 | Anti-floating fixer for blind pipe and anti-floating construction process using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855846A (en) * | 2022-06-08 | 2022-08-05 | 贵州建工兴印建筑工程有限公司 | Underground seepage-proofing pressure-reducing anti-floating blind pipe structure and construction method thereof |
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| CN110439082A (en) * | 2019-07-10 | 2019-11-12 | 江苏大学 | A kind of backfill structure and construction method suitable for underground piping vibration isolation |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114855846A (en) * | 2022-06-08 | 2022-08-05 | 贵州建工兴印建筑工程有限公司 | Underground seepage-proofing pressure-reducing anti-floating blind pipe structure and construction method thereof |
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Application publication date: 20200814 |