CN103615043A - Surface directly-buried drain pipe assembly bearing large equipment or dynamic load, and construction method thereof - Google Patents
Surface directly-buried drain pipe assembly bearing large equipment or dynamic load, and construction method thereof Download PDFInfo
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- CN103615043A CN103615043A CN201310544684.7A CN201310544684A CN103615043A CN 103615043 A CN103615043 A CN 103615043A CN 201310544684 A CN201310544684 A CN 201310544684A CN 103615043 A CN103615043 A CN 103615043A
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004576 sand Substances 0.000 claims description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 21
- 238000005260 corrosion Methods 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 10
- 238000009412 basement excavation Methods 0.000 claims description 9
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 4
- 239000011083 cement mortar Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims description 3
- 239000011505 plaster Substances 0.000 claims description 3
- 239000003755 preservative agent Substances 0.000 claims description 3
- 230000002335 preservative effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a surface directly-buried drain pipe assembly bearing large equipment or a dynamic load, and a construction method thereof. The directly-buried drain pipe assembly comprises a surface drain, a drain pipe and a tee. The drain pipe comprises a cast iron drain pipe and a steel pipe. The cast iron drain pipe is sleeved with the steel pipe. The inner wall of the steel pipe is provided with an inner anticorrosion layer, and the outer wall of the steel pipe is provided with an outer anticorrosion layer. The inner wall of the cast iron drain pipe is provided with a cast iron internal anticorrosion layer. The tee comprises a cast iron three-way pipe sleeved with a steel three-way pipe. The upper end of a connection, connected with the butt end of the surface drain, of the steel three-way pipe is provided with a circular steel plate. The inner wall of the steel three-way pipe is provided with an inner anticorrosion layer. The outer wall of the steel three-way pipe is provided with an outer anticorrosion layer. The inner wall of the cast iron three-way pipe is provided with a cast iron internal anticorrosion layer. The cast iron pipe is sleeved with the steel pipe, namely in a pipe-in-pipe manner, the steel pipe is mainly functional in bearing pressure and draining a small amount of water, the cast iron pipe is mainly functional in draining water, the advantages of the two pipes are given to full play, and advantages and disadvantages are implemented. Through the application of the surface directly-buried drain pipe assembly bearing large equipment or the dynamic load and the construction method thereof, the problem that a surface dynamic load easily crushes a pipeline is solved 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 direct-burried gutter that carries main equipment or dynamic load ground, the invention still further relates to the construction method of the direct-burried gutter 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 in use can be at land drainage, again because the heavy ion experimental facilities of 30 tons (ground design is 300kpa/m) left and right is installed on ground, and its be as dynamic loading on ground, do draining trench and will increase high cost, consider that in addition dynamic load also should not arrange draining trench to the impact of structure, and open drain more there is considerable influence to equipment Foundations.In the buried cast iron pipe pipeline configuration of the building < < Water and Waste Water Engineering specification > > that China Engineering Construction Standardization Association formulates, clearly state buried iron drain-pipe construction method and be not suitable for the ground that has large load in industrial enterprise, therefore can only be by gutter direct-burried.Due to direct-burried, cast iron pipe is clamp connection on the one hand, 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.Owing to also not having at present the relevant construction technology can be for reference, so the selection of pipe and construction technology be large technical barriers.
Summary of the invention
The technical problem to be solved in the present invention is to provide carrying main equipment that a kind of simple in structure, long service life, cost are low or the direct-burried drainage system on dynamic load ground; Another technical problem that the present invention will solve is to provide a kind of construction method of carrying the direct-burried gutter on main 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 direct-burried gutter that carries main equipment or dynamic load ground, comprise floor drain, gutter and threeway, it is characterized in that: gutter 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 tee piece, and cast iron tee piece outside is set with steel tee piece, is provided with doughnut-shaped steel plate with the steel tee piece interface upper surface of floor drain butt end; Steel tee piece inwall is provided with interior anticorrosive coat, and steel tee piece outer wall is provided with external anti-corrosion layer; Cast iron tee piece inwall is provided with anticorrosive coat in cast iron pipe.
The present invention carries the direct-burried gutter on main equipment or dynamic load ground, from run into technical barrier analysis, adopts single cast iron pipe or steel pipe obviously all cannot solve this difficulty, if adopt special material cost too high again; So inventor is from using the prerequisite of conventional material, by stack, use two kinds of tubing, 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, give full play to the advantage of two kinds of tubing, realize advantage and weakness complementary.
It is as follows that the present invention solves the technical scheme that above-mentioned another technical problem takes: a kind of construction method of carrying the direct-burried gutter on main equipment or dynamic load 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 can be in groove constructing operation; Having dug both sides, Hou Gou slope will have 10% the gradient, prevents slump;
B, be backfilling and compacted: sand horsestone backfill twice for channel bottom, the each 28～35cm of sand horsestone backfill thickness, needs watering after compacting leveling after each backfill, and the water yield is for slightly making sand horsestone surface slightly moistening; Residue 8～10cm is not more than the sand head backfill of 3mm and pours water and roll, tamp with particle diameter; Pipe laying after three～five days; Sand head refer in wall plaster construction, sift out, particle diameter is less than 3mm waste material;
C, making cement buttress: according to conduit slope, calculate in advance the absolute altitude of corresponding buttress, make cement buttress, buttress is fixing to be wanted firmly, and 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, and with antirust painting brush twice, the Sudan one time, accomplishes even thickness during brush, 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 that the cast iron pipe after connecting 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 obtains anti-corrosive steel tube twice with cement mortar brush;
G, pipeline suit: cast iron pipe integral body that do not leak through water filling test, after connecting is coated with anti-corrosive steel tube, 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 use again sand head backfill 4cm, then use the backfill of sand horsestone layered rolling, when rolling backfill, add water compacting to the foundation pad absolute altitude of ground.
The way of pipeline foundation of the present invention is compared with common way, and innovation has proposed to roll the way that adds water compacting in compacting, i.e. and " watertight method ", basis, ground is sand horsestone, layering flattens and tamps, and due to intrinsic spacing between the grains of sand, follow-uply may cause foundation settlement.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, lubrication is played in grains of sand motion, has reduced greatly the existence in space, has then avoided foundation settlement.
The construction method of the direct-burried gutter on carrying main equipment provided by the invention or dynamic load ground, effectively avoided the adverse effect that direct-buried pipe is leaked and material corrosion phenomenon causes, solved the severe phenomenon that pipeline that ground dynamic load easily causes crushes, with by the method comparison of reinforcing pipes measure, greatly reduce financial cost, and sand head has also obtained the application of maximum function as waste material.For there being the present situation of gutter way on the ground of dynamic load to be improved without industrial premises, filled up in building construction the blank without this way.
As calculated, with respect to the construction method that strengthens trench arrangement of reinforcement and reduce the impact that dynamic load causes, this construction method is reduced expenses more than 30,000 yuan; Save construction cost more than 50%.
Accompanying drawing explanation
Fig. 1 is the surface drainage system schematic diagram of direct-burried gutter of the present invention,
Fig. 2 is A-A sectional drawing 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 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-gutter, 5-threeway, 501-cast iron tee piece, 502-steel tee piece, 6-doughnut-shaped steel plate, 7-external anti-corrosion layer, 8-steel pipe, 9-interior anticorrosive coat, 10-iron drain-pipe, anticorrosive coat in 11-cast iron pipe, 12-sand grains movement locus, F-cal rolling active force.
The specific embodiment
Product embodiments is as shown in Figures 1 and 2: a kind of direct-burried gutter that carries main equipment or dynamic load ground, comprise floor drain 1, gutter 4 and threeway 5, and gutter 2 comprises iron drain-pipe 10 and steel pipe 8, iron drain-pipe 10 outsides suit steel pipes 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 anticorrosive coat 11 in cast iron pipe.
Referring to Fig. 3: threeway 5 comprises cast iron tee piece 501, and cast iron tee piece 501 outsides are set with steel tee piece 502, is provided with doughnut-shaped steel plate 6 with the steel tee piece interface upper surface of floor drain butt end; Steel tee piece 502 inwalls are provided with interior anticorrosive coat 9, and steel tee piece 502 outer walls are provided with external anti-corrosion layer 7; Cast iron tee piece 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 construction method of carrying the direct-burried gutter on main equipment or dynamic load ground provided by the invention, comprises the steps:
A, channel excavation: excavation is front according to working drawing unwrapping wire, select the method that mechanical equivalent of light excavation is combined with manual amendment to carry out channel excavation, the following 70cm of cutting depth absolute altitude at the bottom of pipeline, can guarantee that like this backfill layered is at 30～35cm, sand head backfill for remaining space, excavation width is more than 1 meter, and guarantor can construct in groove; Having dug both sides, Hou Gou slope will have 10% the gradient, prevents slump;
B, be backfilling and compacted: during backfill, use the compacting of backfill limit, mechanical limit, sand horsestone backfill twice for channel bottom, each 30 cm of sand horsestone backfill thickness, need slightly watering after compacting leveling after each backfill, 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 be in wall plaster construction, sift out, particle diameter is less than 3mm waste material; Pour water preceding pipeline base state as shown in Figure 5: between the Shi Yushi of sand horsestone 3, 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 each componental movement state while rolling as shown in Figure 6: under the effect of cal rolling directed force F, the tiny grains of sand start filling pore, sand head makes up vacancy, sand grains between sand horsestone 3, stone, sand head 2 distribute and move along sand grains movement locus 12, and each component starts to tend towards stability; 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 distributes stable;
C, making cement buttress: according to conduit slope, calculate in advance the absolute altitude of corresponding buttress, make cement buttress;
D, cast iron pipe pipeline corrosion protection and be connected: cast iron pipe is carried out to interior preservative treatment, and with antirust painting brush twice, the Sudan one time, accomplishes even thickness during brush, 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 that the cast iron pipe after connecting 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 obtains anti-corrosive steel tube twice with cement mortar brush;
G, pipeline suit: cast iron pipe integral body that do not leak through water filling test, after connecting is coated with anti-corrosive steel tube, 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 use again sand head backfill 4cm, then use the backfill of sand horsestone layered rolling, when rolling backfill, add water compacting to foundation pad absolute altitude place, ground.
Embodiment of the method 2
The following 75cm of a, cutting depth 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, 30 cm for the second time for the first time; Remaining space 10cm is not more than the sand head backfill of 3mm and pours water and roll, tamp with particle diameter; 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 (4)
1. a direct-burried gutter that carries main equipment or dynamic load ground, comprises floor drain, gutter and threeway, and its spy is: gutter (2) comprises iron drain-pipe (10) and steel pipe (8), iron drain-pipe (10) outside suit steel pipe (8); Steel pipe (8) inwall is provided with interior anticorrosive coat (9), and steel pipe (8) outer wall is provided with external anti-corrosion layer (7), and iron drain-pipe (10) inwall is provided with anticorrosive coat (11) in cast iron pipe.
2. a kind of direct-burried gutter that carries main equipment or dynamic load ground as claimed in claim 1, its spy is: threeway (5) comprises cast iron tee piece (501), cast iron tee piece (501) outside is set with steel tee piece (502), is provided with doughnut-shaped steel plate (6) with the steel tee piece interface upper surface of floor drain butt end; Steel tee piece (502) inwall is provided with interior anticorrosive coat (9), and steel tee piece (502) outer wall is provided with external anti-corrosion layer (7); Cast iron tee piece (501) inwall is provided with anticorrosive coat (11) in cast iron pipe.
3. a construction method of carrying the direct-burried gutter on main equipment or dynamic load ground, is characterized in that comprising 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 can be in groove constructing operation; Having dug both sides, Hou Gou slope will have 10% the gradient, prevents slump;
B, be backfilling and compacted: sand horsestone backfill twice for channel bottom, the each 28～35cm of sand horsestone backfill thickness, needing watering compacting leveling watering after each backfill, make sand horsestone surface slightly moistening; Residue 8～10cm is not more than the sand head backfill of 3mm and pours water and roll, tamp with particle diameter; Pipe laying after three～five days;
C, making cement buttress: according to conduit slope, calculate in advance the absolute altitude of corresponding buttress, make cement buttress;
D, cast iron pipe pipeline corrosion protection and be connected: cast iron pipe is carried out to interior preservative treatment, and with antirust painting brush twice, the Sudan one time, accomplishes even thickness during brush, 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 that the cast iron pipe after connecting 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 obtains anti-corrosive steel tube twice with cement mortar brush;
G, pipeline suit: cast iron pipe integral body that do not leak through water filling test, after connecting is coated with anti-corrosive steel tube, 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 use again sand head backfill 4cm, then use the backfill of sand horsestone layered rolling, when rolling backfill, add water compacting to foundation pad absolute altitude place, ground.
4. a kind of construction method of carrying the direct-burried gutter on main equipment or dynamic load ground as claimed in claim 3, it is characterized in that sand head described in step b refer in wall plaster construction, sift out, particle diameter is less than 3mm waste material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 true CN103615043A (en) | 2014-03-05 |
| CN103615043B CN103615043B (en) | 2016-05-25 |
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Cited By (3)
| 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 |
| CN107606306A (en) * | 2017-09-18 | 2018-01-19 | 金丹 | Road rain water pipeline construction method |
| CN113836763A (en) * | 2021-09-02 | 2021-12-24 | 中国石化工程建设有限公司 | Self-balancing system and verification method for buried pressure-bearing large-diameter socket connecting pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405027A (en) * | 2014-11-05 | 2015-03-11 | 扬州大学 | Rain sewage diversion reforming system for old residential area |
| CN107606306A (en) * | 2017-09-18 | 2018-01-19 | 金丹 | Road rain water pipeline construction method |
| CN107606306B (en) * | 2017-09-18 | 2019-07-12 | 金丹 | Construction method of road rainwater pipeline |
| CN113836763A (en) * | 2021-09-02 | 2021-12-24 | 中国石化工程建设有限公司 | Self-balancing system and verification method for buried pressure-bearing large-diameter socket connecting pipeline |
| CN113836763B (en) * | 2021-09-02 | 2024-08-16 | 中国石化工程建设有限公司 | Self-balancing system and verification method for buried pressure-bearing large-diameter socket connection pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103615043B (en) | 2016-05-25 |
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