CN103615043B - Direct-burried drainpipe and the construction method thereof on carrying main equipment or dynamic load ground - Google Patents
Direct-burried drainpipe and the construction method thereof on carrying main equipment or dynamic load ground Download PDFInfo
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- CN103615043B CN103615043B CN201310544684.7A CN201310544684A CN103615043B CN 103615043 B CN103615043 B CN 103615043B CN 201310544684 A CN201310544684 A CN 201310544684A CN 103615043 B CN103615043 B CN 103615043B
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Abstract
The present invention relates to a kind of direct-burried drainpipe and construction method of carrying main equipment or dynamic load ground. Direct-burried drainpipe comprises floor drain, drainpipe and threeway, and drainpipe comprises iron drain-pipe and steel pipe, iron drain-pipe outside suit steel pipe; Steel pipe inner wall is provided with interior anticorrosive coat, and outer wall of steel pipe is provided with external anti-corrosion layer, and iron drain-pipe inwall is provided with anticorrosive coat in cast iron pipe. Threeway comprises cast iron three-way pipe, and cast iron three-way pipe outside is set with steel three-way pipe, is provided with doughnut-shaped steel plate with the steel three-way pipe interface upper surface of floor drain butt end; Steel three-way pipe inwall is provided with interior anticorrosive coat, and steel three-way pipe outer wall is provided with external anti-corrosion layer; Cast iron three-way pipe inwall is provided with anticorrosive coat in cast iron pipe. The present invention is at cast iron pipe outside suit steel pipe, Guan Zhongyou pipe, and a small amount of draining of holding concurrently of the main pressure-bearing of steel pipe, cast iron pipe arterial drainage, gives full play to the advantage of two kinds of tubing, realizes advantage and weakness complementation. The present invention has solved the severe phenomenon that pipeline that ground dynamic load easily causes crushes effectively.
Description
Technical field
The invention belongs to room and build water supply and sewage work technical field, be specifically related to a kind of carrying main equipment or dynamic load groundDirect-burried drainpipe, the invention still further relates to the construction method of the direct-burried drainpipe on carrying main equipment or dynamic load ground.
Background technology
Lanzhou heavy ion medical research center magnet power supply test and debugging central steel structure belongs to industrial premises, because equipment existsCan be at land drainage in use, again because the heavy ion experimental facilities of 30 tons of left and right is installed on ground, and it is as live loadCarry and act on ground, doing draining trench will increase high cost, consider that in addition dynamic load also should not arrange the impact of structureDraining trench, and more there is considerable influence open drain to Equipment Foundations. The building that China Engineering Construction Standardization Association formulates " is givenThe specification of the buried cast iron pipe pipeline configuration of water drainage system " in clearly state buried iron drain-pipe construction method and be not suitable forIn industrial enterprise, there is the ground of large load, therefore can only be by drainpipe direct-burried. Due to direct-burried, cast iron pipe is that clip connects on the one handConnect, once leak, maintenance will be very difficult; In addition dynamic load, the stronger weakness of its fragility of cast iron pipe will be more outstanding. Due to orderBefore also not relevant construction technology can be for reference, therefore the selection of pipe and construction technology are large technical barriers.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple in structure, long service life, carrying that cost is low largeThe direct-burried drainage system on type equipment or dynamic load ground; Another technical problem that the present invention will solve is to provide a kind of carrying largeThe construction method of the direct-burried drainpipe on type equipment or dynamic load ground.
It is as follows that the present invention solves the problems of the technologies described above the technical scheme of taking: a kind of carrying main equipment or dynamic load groundDirect-burried drainpipe, comprise floor drain, drainpipe and threeway, it is characterized in that: drainpipe comprises iron drain-pipe and steel pipe, cast ironDrainpipe outside suit steel pipe; Steel pipe inner wall is provided with interior anticorrosive coat, and outer wall of steel pipe is provided with external anti-corrosion layer, and iron drain-pipe inwall is establishedThere is anticorrosive coat in cast iron pipe.
Threeway comprises cast iron three-way pipe, and cast iron three-way pipe outside is set with steel three-way pipe, with the steel threeway of floor drain butt endInterface tube upper surface is provided with doughnut-shaped steel plate; Steel three-way pipe inwall is provided with interior anticorrosive coat, and steel three-way pipe outer wall is provided with external anti-corrosion layer; CastingIron three-way pipe inwall is provided with anticorrosive coat in cast iron pipe.
The present invention carries the direct-burried drainpipe on main equipment or dynamic load ground, from run into technical barrier analysis,Adopt single cast iron pipe or steel pipe obviously all cannot solve this difficulty, if adopt special material cost too high again; InstituteFrom using the prerequisite of conventional material, use two kind tubing by stack with inventor, adopt steel pipe and cast iron pipe simultaneously,At cast iron pipe outside suit steel pipe, Guan Zhongyou pipe, a small amount of draining of holding concurrently of the main pressure-bearing of steel pipe, cast iron pipe arterial drainage, gives full play toThe advantage of two kinds of tubing, realizes advantage and weakness complementation.
It is as follows that the present invention solves the technical scheme that above-mentioned another technical problem takes: a kind of carrying main equipment or dynamic loadThe construction method of the direct-burried drainpipe on ground, comprises the steps:
A, channel excavation: cutting depth is 64～74cm below absolute altitude at the bottom of pipeline, at least 1 meter of excavation width, guarantor canWith constructing operation in groove; Having dug both sides, Hou Gou slope will have 10% the gradient, prevents slump;
B, be backfilling and compacted: channel bottom sand horsestone backfill twice, the each 28～35cm of sand horsestone backfill thickness returns at every turnAfter filling out, need to sprinkle water after compacting leveling, the water yield is for slightly making sand horsestone surface slightly moistening; 8～10cm is little with particle diameter for residueIn the sand head backfill of 3mm and pour water and roll, tamp; Pipe laying after three～five days; Sand head refers in wall plaster construction and sifts out, particle diameter is less than 3mm waste material;
C, making cement buttress: calculate in advance the absolute altitude of corresponding buttress according to conduit slope, make cement buttress, buttressFixing wanting firmly, repetition measurement absolute altitude while placing pipeline, to control the gradient well;
D, cast iron pipe pipeline corrosion protection and be connected: cast iron pipe is carried out to interior preservative treatment, with antirust painting brush twice, the Sudan oneTime, when brush, accomplish even thickness, can not leak brush; Pipeline connects the zinc-plated clamp connection of employing stainless steel;
E, cast iron pipe water filling test: adopt existing conventional method to pour water to the cast iron pipe after connecting, guarantee the casting after connectingIron pipe is water-tight;
F, steel pipe corrosion-proof: steel pipe inner wall brushes one times corrosion resistant coating, outer wall of steel pipe brushes one times with pitch, then with cement mortar brush twoAll over obtaining anti-corrosive steel tube;
G, pipeline suit: cast iron pipe entirety anti-corrosive steel tube that do not leak through water filling test, after connecting is coated, obtains encasement tubeRoad; The connected mode of anti-corrosive steel tube is welding;
H, pipeline are installed: suit pipeline is installed to cement buttress, and after installation, outer wall of steel pipe is coated with three oily two felts; SoAfter use again sand head backfill 4cm, then use the backfill of sand horsestone layered rolling, the compacting that adds water in the time rolling backfill is to ground blinding layer markBelow height.
The way of pipeline foundation of the present invention is compared with common way, and innovation has proposed to roll doing of adding water and tamp in compactingMethod, i.e. " watertight method ", basis, ground is sand horsestone, layering flattens and tamps, due to intrinsic spacing between the grains of sand, follow-up may makingBecome settlement of foundation. By pouring water, drive on the one hand the tiny grains of sand to fill space, during on the other hand for follow-up vibrating, the grains of sand moveTo lubrication, reduce greatly the existence in space, then avoid foundation settlement.
The construction method of the direct-burried drainpipe on carrying main equipment provided by the invention or dynamic load ground, avoids effectivelyDirect-buried pipe leak and the adverse effect that causes of material corrosion phenomenon, solved the evil that pipeline that ground dynamic load easily causes crushesBad phenomenon, and by the method comparison of reinforcing pipes measure, greatly reduce financial cost, and sand head also obtains as waste materialThe application of maximum function. The present situation of drainpipe way for the ground that has dynamic load without industrial premises is improved, and fills outMend the blank without this way in building construction.
As calculated, with respect to the construction method that strengthens trench arrangement of reinforcement and reduce the impact that dynamic load causes, this construction methodReduce expenses more than 30,000 yuan; Save construction cost more than 50%.
Brief description of the drawings
Fig. 1 is the surface drainage system schematic diagram of direct-burried drainpipe of the present invention,
Fig. 2 is A-A profile of Fig. 1,
Fig. 3 is that a large figure is put in the B portion of Fig. 1,
Fig. 4 is the process chart of construction method of the present invention,
Fig. 5 is the preceding pipeline base state schematic diagram of pouring water,
Fig. 6 is the each componental movement schematic diagram of pipeline foundation while rolling of pouring water,
Fig. 7 pours water to roll rear pipeline foundation view.
In figure: 1-floor drain, 2-sand head, 3-sand horsestone, 4-drainpipe, 5-threeway, 501-cast iron three-way pipe,502-steel three-way pipe, 6-doughnut-shaped steel plate, 7-external anti-corrosion layer, 8-steel pipe, 9-interior anticorrosive coat, 10-iron drain-pipe, 11-Anticorrosive coat in cast iron pipe, 12-sand grains movement locus, F-cal rolling active force.
Detailed description of the invention
Product embodiments is as shown in Figures 1 and 2: a kind of direct-burried drainpipe that carries main equipment or dynamic load ground,Comprise floor drain 1, drainpipe 4 and threeway 5, drainpipe 2 comprises iron drain-pipe 10 and steel pipe 8, iron drain-pipe 10 outside suitsSteel pipe 8; Steel pipe 8 inwalls are provided with interior anticorrosive coat 9, and steel pipe 8 outer walls are provided with external anti-corrosion layer 7, and iron drain-pipe 10 inwalls are provided with cast ironAnticorrosive coat 11 in pipe.
Referring to Fig. 3: threeway 5 comprises cast iron three-way pipe 501, and cast iron three-way pipe 501 outsides are set with steel three-way pipe 502, withThe steel three-way pipe interface upper surface of floor drain butt end is provided with doughnut-shaped steel plate 6; Steel three-way pipe 502 inwalls are provided with interior anticorrosive coat 9, steel threeSiphunculus 502 outer walls are provided with external anti-corrosion layer 7; Cast iron three-way pipe 501 inwalls are provided with anticorrosive coat 11 in cast iron pipe.
Embodiment of the method 1 is referring to Fig. 4: a kind of direct-burried row of carrying main equipment or dynamic load ground provided by the inventionThe construction method of water pipe, comprises the steps:
A, channel excavation: before excavation, according to construction drawing unwrapping wire, select the method that mechanical equivalent of light excavation is combined with manual amendment to carry outChannel excavation, cutting depth is 70cm below absolute altitude at the bottom of pipeline, can guarantee that like this backfill layered is at 30～35cm, and residue is emptyBetween with the backfill of sand head, excavation width is more than 1 meter, guarantor can construct in groove; Dig both sides, Hou Gou slope and will have 10% slopeDegree, prevents slump;
B, be backfilling and compacted: when backfill, use the compacting of backfill limit, mechanical limit, sand horsestone backfill twice for channel bottom, sand horsestoneThe each 30cm of backfill thickness, needs after each backfill to omit watering after compacting leveling, and the water yield is for slightly making sand horsestone surface slightly moistening; Residue 8cm is not more than the sand head backfill of 3mm and pours water and roll, tamp with particle diameter; Pipe laying after three days; Sand head is wallIn face plastering construction, sift out, particle diameter is less than 3mm waste material; Pour water preceding pipeline base state as shown in Figure 5: the stone of sand horsestone 3 withBetween stone, Sha Yushi, hole is larger, pour water roll front need to be at the sand head 2 of sand horsestone 3 upper berth 3～5cm; Pour water while rolling each groupComponental movement state is as shown in Figure 6: under the effect of cal rolling directed force F, the tiny grains of sand start filling pore, and sand head makes up skyLack, the sand grains between sand horsestone 3, stone, sand head 2 distribute and move along sand grains movement locus 12, and it is steady that each component starts to be tending towardsFixed; Each component state of pouring water after rolling is as shown in Figure 7: the tiny grains of sand have been filled hole, and sand head has made up vacancy, and component distributesStable;
C, making cement buttress: calculate in advance the absolute altitude of corresponding buttress according to conduit slope, make cement buttress;
D, cast iron pipe pipeline corrosion protection and be connected: cast iron pipe is carried out to interior preservative treatment, with antirust painting brush twice, the Sudan oneTime, when brush, accomplish even thickness, can not leak brush; Pipeline connects the zinc-plated clamp connection of employing stainless steel;
E, cast iron pipe water filling test: adopt existing conventional method to pour water to the cast iron pipe after connecting, guarantee the casting after connectingIron pipe is water-tight;
F, steel pipe corrosion-proof: steel pipe inner wall brushes one times corrosion resistant coating, outer wall of steel pipe brushes one times with pitch, then with cement mortar brush twoAll over obtaining anti-corrosive steel tube;
G, pipeline suit: cast iron pipe entirety anti-corrosive steel tube that do not leak through water filling test, after connecting is coated, obtains encasement tubeRoad; The connected mode of anti-corrosive steel tube is welding;
H, pipeline are installed: suit pipeline is installed to cement buttress, and after installation, outer wall of steel pipe is coated with three oily two felts; SoAfter use again sand head backfill 4cm, then use the backfill of sand horsestone layered rolling, the compacting that adds water in the time rolling backfill is to ground blinding layer markEminence.
Embodiment of the method 2
A, cutting depth 75cm below absolute altitude at the bottom of pipeline, all the other are with embodiment 1;
B, be backfilling and compacted: sand horsestone backfill thickness is 35cm, 30cm for the second time for the first time; Remaining space 10cm with particle diameter notBe greater than the sand head backfill of 3mm and pour water and roll, tamp; Pipe laying after five days; All the other are with embodiment 1;
C, making cement buttress: with embodiment 1;
D, cast iron pipe pipeline corrosion protection and be connected same embodiment 1;
E, cast iron pipe water filling test: with embodiment 1;
F, steel pipe corrosion-proof: with embodiment 1;
G, pipeline suit: with embodiment 1;
H, pipeline are installed: with embodiment 1.
Claims (3)
1. a direct-burried drainpipe that carries main equipment or dynamic load ground, comprises floor drain, drainpipe and threeway, and its spy existsIn: drainpipe (2) comprises iron drain-pipe (10) and steel pipe (8), iron drain-pipe (10) outside suit steel pipe (8), cast iron rowBetween water pipe (10) and steel pipe (8), be provided with spacing, iron drain-pipe (10) bottom is affixed with steel pipe (8) bottom, iron drain-pipe(10) with steel pipe (8) top spacing maximum, from top to bottom between the two apart from by great transition to little; In steel pipe (8) inwall is provided withAnticorrosive coat (9), steel pipe (8) outer wall is provided with external anti-corrosion layer (7), and iron drain-pipe (10) inwall is provided with anticorrosive coat in cast iron pipe（11）。
2. a kind of direct-burried drainpipe that carries main equipment or dynamic load ground as claimed in claim 1, its spy is: threeway(5) comprise cast iron three-way pipe (501), cast iron three-way pipe (501) outside is set with steel three-way pipe (502), with floor drain butt endSteel three-way pipe interface upper surface is provided with doughnut-shaped steel plate (6); Steel three-way pipe (502) inwall is provided with interior anticorrosive coat (9), steel three-way pipe(502) outer wall is provided with external anti-corrosion layer (7); Cast iron three-way pipe (501) inwall is provided with anticorrosive coat (11) in cast iron pipe.
3. a construction method of carrying the direct-burried drainpipe on main equipment or dynamic load ground, is characterized in that comprising following stepRapid:
A, channel excavation: cutting depth is 64～74cm below absolute altitude at the bottom of pipeline, at least 1 meter of excavation width, guarantor can beConstructing operation in groove; Having dug both sides, Hou Gou slope will have 10% the gradient, prevents slump;
B, be backfilling and compacted: channel bottom sand horsestone backfill twice, the each 28～35cm of sand horsestone backfill thickness, after each backfillNeed watering compacting leveling watering, make sand horsestone surface slightly moistening; Residue 8～10cm returns with the sand head that particle diameter is not more than 3mmFill out and pour water and roll, tamp; Pipe laying after three～five days;
C, making cement buttress: calculate in advance the absolute altitude of corresponding buttress according to conduit slope, make cement buttress;
D, cast iron pipe pipeline corrosion protection and be connected: cast iron pipe is carried out to interior preservative treatment, with antirust painting brush twice, the Sudan one time, brushIn time, accomplishes can not leak brush by even thickness; Pipeline connects the zinc-plated clamp connection of employing stainless steel;
E, cast iron pipe water filling test: adopt existing conventional method to pour water to the cast iron pipe after connecting, guarantee the cast iron pipe after connectingWater-tight;
F, steel pipe corrosion-proof: steel pipe inner wall brushes one times corrosion resistant coating, outer wall of steel pipe brushes one times with pitch, then with twice, cement mortar brushAnti-corrosive steel tube;
G, pipeline suit: cast iron pipe entirety anti-corrosive steel tube that do not leak through water filling test, after connecting is coated, obtains suit pipeline;The connected mode of anti-corrosive steel tube is welding;
H, pipeline are installed: suit pipeline is installed to cement buttress, and after installation, outer wall of steel pipe is coated with three oily two felts; Then againWith sand head backfill 4cm, then use the backfill of sand horsestone layered rolling, the compacting that adds water in the time rolling backfill is to ground blinding layer absolute altitudePlace;
Sand head described in step b, step h refer in wall plaster construction, sift out, particle diameter is less than 3mm waste material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310544684.7A CN103615043B (en) | 2013-11-06 | 2013-11-06 | Direct-burried drainpipe and the construction method thereof on carrying main equipment or dynamic load ground |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310544684.7A CN103615043B (en) | 2013-11-06 | 2013-11-06 | Direct-burried drainpipe and the construction method thereof on carrying main equipment or dynamic load ground |
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| CN103615043A CN103615043A (en) | 2014-03-05 |
| CN103615043B true CN103615043B (en) | 2016-05-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104405027A (en) * | 2014-11-05 | 2015-03-11 | 扬州大学 | Rain sewage diversion reforming system for old residential area |
| CN107606306B (en) * | 2017-09-18 | 2019-07-12 | 金丹 | Road rain water pipeline construction method |
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| CN202228806U (en) * | 2011-08-29 | 2012-05-23 | 成都智利达科技有限公司 | Double compression resistant composite tube |
| CN202418944U (en) * | 2012-01-19 | 2012-09-05 | 莱芜市凤凰新能源科技集团有限公司 | Double-layer flow dividing pipe |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3445268A1 (en) * | 1984-12-12 | 1986-06-19 | Mengering Sanitär-Haustechnik GmbH, 8700 Würzburg | DEVICE FOR SEALING CONNECTING THE SMOOTH CYLINDRICAL ENDS OF TWO TUBES |
| CN2431459Y (en) * | 1999-12-03 | 2001-05-23 | 陶英树 | Synthetic pipe |
| CN1904456A (en) * | 2005-07-25 | 2007-01-31 | 李寿山 | Anti corrosion pressure resistant pipe material |
| CN101205751A (en) * | 2007-12-04 | 2008-06-25 | 张发亮 | Construction method of roof anti-leak protection layer |
| CN201605650U (en) * | 2010-03-06 | 2010-10-13 | 吉林新源牧业有限公司 | Waste water discharge device used for food production workshop |
| CN102182866B (en) * | 2011-03-25 | 2012-11-07 | 浙江省火电建设公司 | Backfilling process for large ultra-deep circulating water pipe |
| CN102936886B (en) * | 2012-11-30 | 2014-09-24 | 中水北方勘测设计研究有限责任公司 | Embedded fixing structure for diversion steel penstock of hydropower station |
| CN203594092U (en) * | 2013-11-06 | 2014-05-14 | 中铁二十一局集团第二工程有限公司 | Directly buried drainage pipe bearing large equipment or movable load ground |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202228806U (en) * | 2011-08-29 | 2012-05-23 | 成都智利达科技有限公司 | Double compression resistant composite tube |
| CN202418944U (en) * | 2012-01-19 | 2012-09-05 | 莱芜市凤凰新能源科技集团有限公司 | Double-layer flow dividing pipe |
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