CN107587557A - Outdoor water engineering construction method - Google Patents
Outdoor water engineering construction method Download PDFInfo
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- CN107587557A CN107587557A CN201710892077.8A CN201710892077A CN107587557A CN 107587557 A CN107587557 A CN 107587557A CN 201710892077 A CN201710892077 A CN 201710892077A CN 107587557 A CN107587557 A CN 107587557A
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Abstract
The present invention relates to the realm of building construction, more specifically, it relates to outdoor water engineering construction method.Its drip irrigation device is：Prepare before S1 constructions；S2 surveying setting-outs, line position releasing control line, will excavate absolute altitude pilot measurement to roadside house sidings side, and mark in the duct；S3 feedwater tube seats excavate, and 1）Detect the concrete condition of each trench segment；2）First with machinery cut the earth, then manually excavate, pick up it is flat；3）Inspect for acceptance；S4 is to piping foundation construction 1）Drainage of foundation pit, gutter is set in foundation ditch surrounding and centre, set sump in outer side edges, laying stone in hole bottom makees filter layer, base underground water is extracted into the gutter on top；2）The roughing-in basis on soil matrix；3）Tamp pipeline foundation and flat surface；4）Build inspection shaft by laying bricks or stones；S5 feed pipes installation 1）Clean feed pipe outer tube wall；2）Coating adhesive and coarse sand on feed pipe outer tube wall；3）Apply neat plaster；4）Sealing collar is installed；S6 trench backfills.
Description
Technical field
The present invention relates to the realm of building construction, more specifically, it relates to outdoor water engineering construction method.
Background technology
In the process for pushing forward urban modernization construction comprehensively in China, city size is increasing, construction activity work
Journey is also increasing, and wherein water engineering construction is very important engineering, and water is Source of life, higher to security requirement；
And one day in the life of people also be unable to do without water, therefore it is required that high-quality water engineering construction, reduces the maintenance in later stage as far as possible.
Feedwater piping uses and installed particularly important in water engineering, but traditional cast iron water pipe is unhygienic, no
It is pressure-resistant, intolerant to burn into weight is big, easy fouling, service life are short, although the later stage with the addition of many anticorrosive, antioxygens in tubing
Use of the material of change to tubing serves certain effect, but far can not also meet requirement of the people to drinking water quality；
People earnestly look forward to the appearance of a kind of safety, tubing that is hygienic, having good promotion prospect.
Chinese invention patent CN105383053A discloses a kind of novel outdoor water supply network construction method construction and substantially
Ask for：1）Feedwater piping uses PE tubing, and pipe joint is connected in the form of sweat soldering；2）Construction tubing used should accord with
Close related standard, used valve and connector on pipeline, its pressure rating are not lower than the 1.5 of pipeline work pressure
Times, the requirement of described tubing hot-melt adhesive paste is：1）PE interface tube melting connections be by electric hot plate insert two tubing interfaces it
Between, the joint face of tubing is heated, heating plate is extracted out when the joint face of two tubing is heated to molten condition, two tubing are applied
Certain pressure, it is allowed to be formed the flange of uniformity, i.e. welding is firm after cooling；2）Described melting connection typically divides
For five stages；Warm-up phase, endothermic phase, heating plate take out stage, docking stage, cooling stage, heating-up temperature and each
Pressure and time required for stage should meet hot-melt adhesive paste equipment factory and tubing, the regulation of pipe fitting factory；3）Described pipe
Time required for the processes such as when road connects, it is melted, docking, pressurization, cooling, it is necessary to by process stipulation, use manual time-keeping；4）
It is described in pressurize cooling period, mobile link part or external force must not be applied on connector；5）Described melting connection
Work progress and operating procedure it is as follows：A, tubing to be connected is placed on welding machine clamp and clamped；B, it is to be connected to clean tubing
Hold simultaneously milling joint face；C, two interfacing parts are straightened, its magnitude of misalignment is not more than the 10% of wall thickness；D, heater plate is put into, is heated
Finish, take out heating plate；E, two heating surfaces are engaged rapidly, are increased to welding pressure and pressurize cooling；F, temperature of heating plate, preheating
Pressure and time, heat absorption pressure and time, heating plate take-off time, the docking welding such as pressure and time, cooling pressure and time
Technological parameter.
Foregoing invention uses polyethylene（PE）Feedwater piping, and the junction of feedwater piping is handled, PE pipes
Material non-toxic, it is corrosion-resistant, relative to traditional piping material, have that hygienic, light, pressure-resistant, corrosion-resistant, non-scaling, resistance be small, connection makes
The advantages that with long lifespan.
But how high-quality feedwater piping is, safe is installed to underground, and a problem urgently to be resolved hurrily.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide a kind of outdoor water engineering construction method,
More high-quality, safe feedwater piping can be installed to underground.
The present invention above-mentioned technical purpose technical scheme is that：A kind of outdoor water engineering construction
Method, comprise the following steps：
Prepare before S1 constructions；
S2 surveying setting-outs
Control line is released with theodolite placing feedwater piping midline position, absolute altitude pilot measurement will be excavated to roadside house with spirit level
Wall side, and mark；
S3 feedwater tube seats excavate
1）Detect the concrete condition of each trench segment and take corresponding measure；
2）First with machinery cut the earth, dig to from 200~300mm of designed elevation when manually excavate, pick up it is flat；
3）Inspect for acceptance；
S4 is to piping foundation construction
1）Drainage of foundation pit, gutter is set in foundation ditch surrounding and centre, and sump is set in outer side edges, laying stone in hole bottom was made
Filtering layer, and base underground water is extracted into immersible pump the gutter on top；
2) applied thickness is 100mm~150mm pipeline foundation on soil matrix, and pipeline foundation particle maximum particle diameter is less than or equal to
20mm；
3）Pipeline foundation and flat surface are tamped, its compactness must not be less than 90% by Proctor compaction test standard；
4）Build inspection shaft by laying bricks or stones；
S5 feed pipes are installed
1）Clean feed pipe outer tube wall；
2）Coating adhesive and coarse sand on feed pipe outer tube wall；
3）Apply neat plaster；
4）Sealing collar is installed；
S6 installs well ring, and well loads onto prefabricated well ring immediately after building by laying bricks or stones, and well lid is consistent with grade elevation；
S7 trench backfills.
Sharpening is not cut firewood work(by mistake, and the preparation before construction is essential；Absolute altitude pilot measurement will be excavated to roadside house sidings
Side, and mark, it can more accurately know the height of the processes such as follow-up digging groove, more accurate, the house sidings in roadside of constructing
For fixed reference system, mark is more accurate, nor is easily lost.When excavating feedwater tube seat, first cut the earth with machinery, efficiency high,
And the soil on most top layer is relatively hard, excavated by manual work is more painstaking, behind hand excavation, inspection it is flat, can effectively avoid backbreaking,
Because also to backfill simultaneously jolt ramming after backbreaking, efficiency of construction is reduced, so by the way of mechanical equivalent of light excavation and hand excavation combine, essence
Degree is high, efficiency high；During grooving, ponding is had in groove, it is therefore desirable to discharge the water in foundation ditch；The surrounding of foundation ditch and
Centre is designed with gutter, is more beneficial for quickly discharging ponding, and after hole bottom laying stone, immersible pump is not allowed when drawing water
Easily the mud for cheating bottom is extracted out, it is not easy to block, sump can collect part ponding, be also beneficial to quickly discharge ponding
Ditch.
Be easy to coating adhesive and coarse sand on feed pipe outer tube wall after cleaning feed pipe outer tube wall, coarse sand, neat plaster all to
Water pipe has certain protective effect, strengthens the intensity of feed pipe；The better tightness of feed pipe after installation sealing collar.
Using above method, more high-quality, safe feedwater piping can be installed to underground, efficiently and accurately complete to
Hydraulic Projects.
The present invention is further arranged to：Groove excavation section by section in S3, from low to high place's progress.
By using above-mentioned technical proposal, excavation section by section is advantageous to machine and the scattered of personnel disperses between personnel,
Excavate more efficient；Place is carried out to facilitate in lowest part draining from low to high.
The present invention is further arranged to：In S3 during hand excavation, personnel interval 5m is excavated, and in digging process
With should keep furrow bank complete during spacious ditch.
By using above-mentioned technical proposal, excavation personnel have certain interval, each other will not be impacted, are disturbed
It is small；And beneficial in digging process and during spacious ditch furrow bank it is complete.
The present invention is further arranged to：A brick bright ditch is constructed in ground in S4 outside foundation ditch around foundation ditch surrounding.
By using above-mentioned technical proposal, the setting of bright ditch is easy to drain foundation ditch internal water accumulation and rainwater from Ming Gou, and
Bright ditch is brick, and resistance to erosion ability is strong；Bright ditch is looped around foundation ditch surrounding, and drainage efficiency is higher.
The present invention is further arranged to：A silt deposit pond, silt deposit pond pair are excavated in land drainage Ming Gou ends
Should be in foundation ditch internal drainage ditch sump position.
It is can hardly be avoided by using above-mentioned technical proposal, in ponding and has part mud, silt deposit pond can be more preferable
Silt deposit is got off, reduces and blocks, draining is more smooth；Silt deposit pond corresponds to sump, can preferably precipitate silt
Mud.
The present invention is further arranged to：The bottom of trench of brick bright ditch is more than C15 concrete bed course, the longitudinal drainage gradient using intensity
Not less than 1%, sump is built in brick bright ditch lowest part.
By using above-mentioned technical proposal, concrete bed course enhances the intensity of bright ditch bottom of trench, resistance to erosion, nor can wash away
The soil of bright ditch bottom of trench.The longitudinal drainage gradient sets certain angle to be more conducive to the ponding in bright ditch being discharged in sump, arranges
Water speed is faster.
The present invention is further arranged to：Gutter is dimensioned to 400*600mm, and sump is dimensioned to
1000*1000mm。
By using above-mentioned technical proposal, conference increase construction volume is crossed in gutter, and gutter is too small and can influence draining speed
Degree, found through design and construction, gutter size is most appropriate using dimensions above, the size of the size of sump than gutter
Greatly, the water in gutter could be preferably collected, sump is excessive also to increase construction volume.
The present invention is further arranged to：Rubble is placed in sump as filter layer, and places water pump and drainpipe general
Water is evacuated to the outer drainage system of irrigation canals and ditches.
By using above-mentioned technical proposal, the filter layer that rubble is formed is beneficial to the deposition of mud in sump, it is not easy to will
Mud in sump is extracted out, it is not easy to blocks, water is evacuated to outside irrigation canals and ditches by drainpipe, in time discharges the ponding in sump,
Sump could preferably collect the ponding in gutter and bright ditch.
The present invention is further arranged to：In S4 cement self-leveling, water are laid after compacting pipeline foundation on pipeline foundation surface
Mud Self-leveling re-lays feedwater piping after drying.
By using above-mentioned technical proposal, cement self-leveling is that scientific and technological content is higher, sport technique segment also more complicated height
New green product.Automatic trickling after being scattered to applied to cement self-leveling of the present invention paving in groove, and look for automatically on ground low-lying
Area is simultaneously filled and led up, finally static after will be smooth as full wafer ground trickling into minute surface, and is dried quickly, the ground meeting after solidification
Form smooth, smooth, seamless new basic unit.In groove it is smooth after to re-lay feed pipe more convenient, especially in adjacent feedwater
The junction of pipe, corresponding more preferable, it is more convenient to install；And cement self-leveling is green product, and water pipe will not be made
Into pollution；Cement self-leveling is wear-resisting, pressure-resistant, impact resistance also has moistureproof, antibacterial action, there is certain protective effect to feed pipe.
The present invention is further arranged to：After installing feed pipe in S5, lid sets curved plate on feed pipe.
By using above-mentioned technical proposal, curved plate intensity is higher, has good protective effect to feed pipe, especially
It is when backfilling groove, impact of the sandstone to feed pipe is transformed on curved plate, feed pipe is not easy to receive damage.
In summary, the invention has the advantages that：
First, absolute altitude pilot measurement will be excavated to roadside house sidings side, and mark, can more accurately know the works such as follow-up digging groove
The height of sequence, construction is more accurate, and the house sidings in roadside are fixed reference system, and mark is more accurate, nor is easily lost.
When excavating feedwater tube seat, first cut the earth with machinery, efficiency high, and also the soil on most top layer is relatively hard, and excavated by manual work is more painstaking,
Hand excavation, inspection are flat below, can effectively avoid backbreaking, because also to backfill simultaneously jolt ramming after backbreaking, reduce efficiency of construction, so
By the way of mechanical equivalent of light excavation and hand excavation combine, precision is high, efficiency high；During grooving, ponding is had in groove, because
This needs to discharge in the water in foundation ditch；The surrounding of foundation ditch and centre are designed with gutter, are more beneficial for quickly discharging ponding, and
And after hole bottom laying stone, immersible pump is not easy to extract out in the mud for cheating bottom when drawing water, it is not easy to blocks, sump can be received
Collect part ponding, be also beneficial to ponding quickly discharging gutter.
Second, being easy to coating adhesive and coarse sand on feed pipe outer tube wall after cleaning feed pipe outer tube wall, coarse sand, neat plaster are all
There is certain protective effect to feed pipe, strengthen the intensity of feed pipe；The better tightness of feed pipe after installation sealing collar.
Third, cement self-leveling is more convenient the installation of feed pipe, curved plate has good protective effect to feed pipe.
Whole scientific construction, reasonable, the construction of completion water engineering that can be efficient, high-quality.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of spud pile and dome-shaped steel plate in embodiment 4.
In figure：1st, pipeline foundation；2nd, feedwater piping；3rd, cement self-leveling；4th, spud pile；41st, fixing groove；5th, dome-shaped steel
Plate；51st, insert；6th, heat-preservation cotton.
Embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
Embodiment 1
Outdoor water engineering construction method, including following construction procedure：
1. prepare before construction
2. surveying setting-out
Before going into operation, datum level point, construction wire point, curve element that the skilled keen-witted and capable surveying party 5 of tissue is provided design enter
Row is buried and repetition measurement, establishes plane survey control net, and its precision must is fulfilled for construction survey specification and design requirement；Design is carried
The coordinate points of the control point all fronts of confession, bench mark, curve element point, often to check in work progress and check and be protected by.
The repetition measurement at 2.1 control points
The boundary of works area inner plane control point therefrom taken after owner and management intersection point and vertical control point data, seek at the scene
Control point position is looked for, and repetition measurement, and the result of repetition measurement is informed into supervising engineer repeatedly is carried out according to given data.
2.2 unwrapping wire control
Control line is released with theodolite placing feedwater piping midline position, and is tied up a little on steel fibre or other fixed positions：With
Spirit level will excavate absolute altitude pilot measurement and make mark to roadside house sidings side, and with red paint.
The measure of 2.3 unwrapping wire precision
（1）In strict accordance with GB50026-93 in measurement process《Code for engineering surveying》In relevant regulations measure, and carry out
Review system, accomplish that a point has review work, it is qualified that back is not examined, without rear one step surveying.
（2）To the whole Survey datas used in work progress（Such as coordinate value, height value）Calculated, and hand over measurement to lead
Pipe director checks, and most recognizes afterwards through supervising engineer's label, can come into operation.
3. cubic metre of earth digging fortune construction
Feedwater piping channel excavation
After feedwater piping positioning measurement and unwrapping wire terminate, after the retest-ok such as construction unit and supervisor, ditch can be carried out
Groove excavates.
The method for digging spy and probing is taken to find out and the related subsurface picture of construction, the level of ground water of each trench segment before construction
With soil property situation, the particular location of the various cables in underground, the plan-position that is connected with built irrigation canals and ditches, structures of construction irrigation canals and ditches and
Elevation check and correction etc., reasonably to take appropriate measures.The method of channel excavation has two kinds, i.e. hand excavation opens with machinery
Dig, should according to the form of fracture of groove, the complexity of underground, soil property hardness, workload and the size of construction site with
And the condition such as machinery allocation, labour's condition determines.
Groove is excavated to be excavated with backacter（70%）, human assistance cooperation（30%）.Groove earth excavation self-unloading
Appointed place spoir is transported to outside car.Before excavation, site operation person tells somebody what one's real intentions are in detail to driver and earthwork work（The section of groove, is opened
The order of digging）.Command simultaneously the headroom size of running check groove and center at the scene by administrative staff in digging process,
Ensure that groove off-centring meets code requirement.
The working face that the width that pipe trench bottom land layer excavates is needed to ensure by this tube seat is excavated.During excavation, survey at any time
Amount monitoring, ensures excavation slope, foundation ditch size, and axis, the elevation of bottom land should reach groove and check and accept defined require.
Following item is should be noted that during 3.1 mechanical equivalent of light excavation groove：
3.1.1 to ensure that bottom land soil is not disturbed or destroys, when being cut the earth with machinery, to prevent from backbreaking, dig to from design and mark
Manually excavated during high 200~300mm, pick up flat, avoid phenomenon of backbreaking as far as possible.If backbreaking, disturbance unit should be distinguished and removed, and must
Sand or aggregate chips backfill in must using, and with plate pulsator jolt ramming.Excavation will ensure to work continuously, and linking process is smooth, simultaneously
Notice that slope soil changes, go wrong timely processing.Reduce contingency.
3.1.2 underground utilities and various structures should be tried one's best and can migrated temporarily, can not such as migrate, it is necessary to which digging out makes it
It is exposed, it must take and the reinforcement measure such as hang, hold in the palm, while excavator is made to tell somebody what one's real intentions are in detail, such as without assurance, should be changed to manually cut the earth.
3.1.3 workload less, faciostenosis, underground have barrier or without mechanical execution conditions when, use
Hand excavation.Hand excavation's groove, manpower should be concentrated to scrape out as early as possible, be transferred to subsequent processing construction.
Following item is should be noted that during 3.2 hand excavation：
3.2.1 groove answers excavation section by section, and should determine that sequence of excavation and stage excavation depth, if there is the gradient, should locate from low to high
Carry out, when closely descending, the lowest part earthwork should be first excavated, so as in lowest part draining.
3.2.2 excavation personnel should not be distributed overstocked, be advisable with interval 5m, in digging process and should be kept during spacious ditch
Furrow bank is complete, prevents from caving in, and should support protection if necessary.
3.2.3 groove is excavated when meeting pipeline, cable or other structures, should strictly be protected, and in time and units concerned
Contact, can be the same as processing.
3.2.4 groove is inspected for acceptance：After the completion of channel excavation, inspected for acceptance.Inspection project include excavated section,
Bottom land absolute altitude, axial location, groove side slope etc..Channel excavation tolerance and inspection method are shown in Table 1.
The channel excavation tolerance of table 1 and inspection method
The soil of the earthwork being excavated, wherein construction road side, part directly entrucking should be walked clearly in time, to reserve work
Make face and carry out subsequent processing and heap putting material.
4. cubic metre of earth outward transport
To ensure urban road cleaning, transport vehicle, which uses, meets vehicle as defined in Dongguan City relevant document.It is necessary to fluidised form soil
Shipped after drying, soil, mud must not be loaded in mixture, and carriage top is covered with canvas.Before vehicle appears on the scene, with high pressure water washing, convinent car
Disengaging is clean, and road surface is not polluted in wheel cleaning.
5. drainage of foundation pit
400*600mm gutters are set in foundation ditch surrounding and centre, and 1000*1000mm sumps, hole bottom paving are set in outer side edges
If 200mm thickness rubble make filter layer, and base underground water is extracted into the gutter on top with immersible pump.
Face ring naturally outside foundation ditch constructs the brick bright ditches of a 300*400mm, bottom of trench uses C15 around foundation ditch surrounding
Concrete bed course, the longitudinal drainage gradient is not less than 1%, and builds sump in lowest part.Certain graded broken stone is put as filtering layer, uses water
Drainage system outside pumping to irrigation canals and ditches.
The bright ditch of land drainage need to set 600*600*1000mm silt deposits pond, be catchmented well location corresponding to foundation ditch internal drainage ditch
Put.
Reasonable arrangement sequence of construction during construction, before excavate, behind make the best use of time construction drainage ditch.
6. feedwater piping is constructed
Pipeline foundation should construct by design requirement.
Bottom land soil matrix should be met the following requirements:
The pipeline foundation bottom land of this bid section is handled by design drawing.
Pipeline foundation should be met the following requirements:
1）The medium coarse sand pipeline foundation that applied thickness is 100~150mm is answered on soil matrix.
2）When making pipeline foundation using other granular materials, maximum particle diameter not should be greater than numerical value as defined in table 2.
Granular materials maximum particle diameter (mm) in the pipeline foundation of table 2
| Nominal diameter (DN) | Maximum particle diameter |
| DN≤300 | 10 |
| 300<DN≤630 | 15 |
| DN>630 | 20 |
3）Pipeline foundation should tamp and surfacing, and its compactness must not be less than 90% by Proctor compaction test standard.
Pipeline foundation is in the groove at interface position, and with paving with digging preferably when laying feedwater piping, groove length 1 is big by caliber
Small use, preferably 0.4 ~ 0.6m, depth of groove h are preferably 0.05 ~ 0.10m, and recess width W is preferably 1.1 times of Diameter of Feed Water Pipe.
After the completion of interface, groove is backfilled closely knit with sand immediately.
Before down tube installation, the operation items such as the groove width after cross-notching, depth of groove, pipeline foundation surface level, inspection shaft are answered
Mesh is checked that groove planted agent is without sludge debris, basal plane undisturbed respectively.Applying for the next step can be just carried out after passed examination
Work.
7. inspection shaft is built by laying bricks or stones
7.1 construction survey：Plane and the measurement of the level are carried out before construction, guarantee well center, elevation and well spacing meet design will
Ask, and make central point, draw to build position by laying bricks or stones and mark and build height by laying bricks or stones, personnel easy to operation grasp.
7.2 build inspection shaft by laying bricks or stones：Internal diameter should be checked by building inspection shaft by laying bricks or stones, and closing in section will check for offseting per tile, and important affair
The height of closing in section is first determined, can be by regulation per skin brick retraction 2cm, it is retraction 4cm to build a skin brick.In underground portion, branch pipe stretches into
Place, particularly ttom of pipe both sides are smash slotting closely knit with mortar brickbat, and remaining then wants the brick bag of every layer of moat appropriate, and its must be made not permeable
Leakage, and to avoid levels brick opposite joint.
The connection processing of 7.3 feedwater pipings and inspection shaft：（《Embedded high-density polyethylene hollow wall winding arrangement drainpipe
Road engineering technology code》（DBJ/T15-33-2003））
1）The outer surface of tube wall is handled totally with hairbrush or cotton yarn；
2）One layer of Plastics adhesives are equably smeared, one layer of dry coarse sand is being spread above, is solidifying 10-20 minutes；
3）Apply neat plaster（Cement oil twice）；
4）Sealing collar is installed；
5）1：2 cement mortar are thick 50 millimeters（Pipe finned surface plays meter）, inside put the ring muscle of 4 ￠ 10；
6）M10 mortars, brick 120 high upper half circular arch of MU15.
8. well ring is installed：Well builds by laying bricks or stones to finish loads onto prefabricated well ring in time, and well lid places balance by design requirement, it is ensured that with
Grade elevation is consistent.
9. trench backfill
1.1 feedwater pipings, canal construction finish and through after the assay was approved, groove should be backfilled in time.
The quality of 1.2 trench backfill construction qualities, directly affect the service life of feedwater piping from now on and engineering operation
Quality, it is extremely important link.
Both sides filler is tamped during 1.3 backfill, action can not be too quickly, in order to avoid squeezing bad feedwater piping interface, and should try one's best and allow
Two people symmetrically fill along pipe, and the compactness of the part should reach 95%.Backfill should also be noted that：
In the range of 1.4 tube top above 0.7m, it is necessary to manually backfill, tamp, forbid using machinery soil-shifting rolling backfill；Tube top
0.7m can use machinery to backfill, tamp or roll simultaneously from feedwater piping axis both sides with the backfill of upper bit.
Should be clean by eliminating impurities such as the brick in pipe trench, stone, wooden units by ditch internal water accumulation emptying before 1.5 backfills.
During 1.6 backfill aggregate chips, in the range of bottom land to tube top above 50cm, organic matter, frozen soil must not be contained and more than 50mm
Brick, the lump such as stone, smearing around band interface, fine grained aggregate chips should used to backfill.Feedwater piping must not be damaged during backfill
And its interface, backfill aggregate chips should suitably be higher by original ground, to leave the surplus of nature depression.
1.7 pipe both sides should wash by water with layered is tamped, and every layer of empty paving is determined according to compactor and desired compactness
Thickness, thickness can according to the form below 3 select.
The virtual resurfacing thickness table of table 3
| Compactor | Virtual resurfacing thickness/cm | Compactor | Virtual resurfacing thickness/cm |
| Beetle, ramming iron | ≤20 | Road roller | 20-30 |
| Frog rammer, firepower ram | 20-25 | Vibrated roller | ≤40 |
The compacting counting of 1.8 every layer of aggregate chips of backfill, compactness that should be on request, compactor, virtual resurfacing thickness, through field test
It is determined that.
1.9 aggregate chips must not damage tube coupling and its interface when being transported into groove, and should meet the following requirements：According to one layer of empty paving
Backfilling material is transported in groove by the dosage of thickness, and must not influence windrow in the range of compacting；
1.10 segmentations are when being backfilling and compacted, and adjacent segment connects stubble and should be stepped, and must not leak rammer；
Backfill around 1.11 inspection shafts, inlet for stom water and other well rooms, should meet the following requirements：
1.12 concretes and masonry strength of cement mortar should reach design code；
Around well room in the range of 1.13 road surfaces, the backfill of the materials such as rendzinas, sand, gravel should be used, its width is not preferably less than
40cm；
Backfill around 1.14 well rooms, it should be carried out simultaneously with the backfill of feedwater piping groove；When inconvenience is carried out simultaneously, should stay
Step connects stubble；
It should be carried out when being backfilling and compacted around 1.15 well rooms along well room Central Symmetry, and rammer must not be leaked.
Embodiment 2
Outdoor water engineering construction method, the difference of embodiment 2 and embodiment 1 be, tamped in S4 after pipeline foundation
Cement self-leveling is laid on pipeline foundation surface, and feedwater piping is re-layed after cement self-leveling dry solidification.
Cement self-leveling is that scientific and technological content is higher, sport technique segment also more complicated high-new green product.Applied to this hair
Bright cement self-leveling paving automatic trickling after being scattered in groove, and look for low-lying district automatically on ground and filled and led up, finally will
It is smooth rear static as full wafer ground trickling into minute surface, and dry quickly, the ground after solidification can form smooth, smooth, seamless
New basic unit.In groove it is smooth after to re-lay feed pipe more convenient, the especially junction in adjacent feed pipe, it is corresponding more
Good, it is more convenient to install；And cement self-leveling is green product, and water pipe will not be polluted；Cement self-leveling is resistance to
Mill, pressure-resistant, impact resistance also have moistureproof, antibacterial action, there is certain protective effect to feed pipe.
Embodiment 3
Outdoor water engineering construction method, the difference of embodiment 3 and embodiment 1 is, after installing feed pipe in S5,
Lid sets curved plate on feed pipe.Curved plate is fully wrapped around firmly by feed pipe, and underground is stretched into both sides.
Curved plate intensity is higher, there is good protective effect to feed pipe, especially when backfilling groove, by sandstone
Impact to feed pipe is transformed on curved plate, and feed pipe is not easy to receive damage.In work progress without to before that
Sample is careful, is conducive to provide efficiency of construction.
Embodiment 4
Outdoor water engineering construction method, as shown in figure 1, the difference of embodiment 4 and embodiment 1 is, pipe is tamped in S4
Wedging spud pile 4, spud pile 4 are arranged along the both sides that feedwater piping 2 is laid in pipeline foundation 1 behind road basis 1, fixed
The top of stake 4, which is higher by pipeline foundation 1,30-50mm, and the top of spud pile 4 offers fixing groove 41；Wedge spud pile 4 after
Cement self-leveling 3 is laid on the surface of pipeline foundation 1, and feedwater piping 2 is laid on into two row's spud piles after the dry solidification of cement self-leveling 3
Between 4.After the installation of feedwater piping 2, one layer of heat preservation cotton 6 is coated on feedwater piping 2, then lid sets circular arch in heat-preservation cotton 6
Shape steel plate 5, dome-shaped steel plate 5 are provided with the insert 51 in insertion fixing groove 41.
Heat-preservation cotton 6 has good insulation effect, very low in northern winter temperature, the 2 easy bursting by freezing of feedwater piping of plastics,
The insulation effect certain to feedwater piping 2 of heat-preservation cotton 6, extend the service life of feedwater piping 2；Two row's spud piles 4 are to feedwater
Pipeline 2 has positioning and position-limiting action well, and more convenient smooth when installing feedwater piping 2, insert 51 inserts fixing groove
The installation of spud pile 4 and dome-shaped steel plate 5 can be completed in 41, it is easy for construction, operating efficiency is improved, dome-shaped steel plate 5 is solid
Fixed is also more firm, and the protective effect to feedwater piping 2 is more preferable.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of outdoor water engineering construction method, it is characterised in that comprise the following steps：
Prepare before S1 constructions；
S2 surveying setting-outs
Control line is released with theodolite placing feedwater piping midline position, absolute altitude pilot measurement will be excavated to roadside house with spirit level
Wall side, and mark；
S3 feedwater tube seats excavate
1）Detect the concrete condition of each trench segment and take corresponding measure；
2）First with machinery cut the earth, dig to from 200~300mm of designed elevation when manually excavate, pick up it is flat；
3）Inspect for acceptance；
S4 is to piping foundation construction
1）Drainage of foundation pit, gutter is set in foundation ditch surrounding and centre, and sump is set in outer side edges, laying stone in hole bottom was made
Filtering layer, and base underground water is extracted into immersible pump the gutter on top；
2) applied thickness is 100mm~150mm pipeline foundation on soil matrix, and pipeline foundation particle maximum particle diameter is less than or equal to
20mm；
3）Pipeline foundation and flat surface are tamped, its compactness must not be less than 90% by Proctor compaction test standard；
4）Build inspection shaft by laying bricks or stones；
S5 feed pipes are installed
1）Clean feed pipe outer tube wall；
2）Coating adhesive and coarse sand on feed pipe outer tube wall；
3）Apply neat plaster；
4）Sealing collar is installed；
S6 installs well ring, and well loads onto prefabricated well ring immediately after building by laying bricks or stones, and well lid is consistent with grade elevation；
S7 trench backfills.
2. outdoor water engineering construction method according to claim 1, it is characterised in that groove excavation section by section in S3, by
The low progress that hoists.
3. outdoor water engineering construction method according to claim 2, it is characterised in that in S3 during hand excavation,
Excavation personnel interval 5m, and in digging process and during spacious ditch furrow bank should be kept complete.
4. outdoor water engineering construction method according to claim 1, it is characterised in that the ground face ring in S4 outside foundation ditch
Around foundation ditch surrounding, a brick bright ditch is constructed.
5. outdoor water engineering construction method according to claim 4, it is characterised in that opened in land drainage Ming Gou ends
A silt deposit pond is dug, silt deposit pond corresponds to foundation ditch internal drainage ditch sump position.
6. outdoor water engineering construction method according to claim 4, it is characterised in that the bottom of trench of brick bright ditch is using strong
Concrete bed course of the degree more than C15, the longitudinal drainage gradient are not less than 1%, and sump is built in brick bright ditch lowest part.
7. outdoor water engineering construction method according to claim 1, it is characterised in that gutter is dimensioned to
400*600mm, sump are dimensioned to 1000*1000mm.
8. outdoor water engineering construction method according to claim 1, it is characterised in that place rubble in sump and make
For filter layer, and place water pump and drainpipe and water is evacuated to drainage system outside irrigation canals and ditches.
9. outdoor water engineering construction method according to claim 1, it is characterised in that in S4 tamp pipeline foundation after
Cement self-leveling is laid on pipeline foundation surface, and cement self-leveling re-lays feedwater piping after drying.
10. outdoor water engineering construction method according to claim 1, it is characterised in that after installing feed pipe in S5,
Lid sets curved plate on feed pipe.
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| CN201710892077.8A CN107587557A (en) | 2017-09-27 | 2017-09-27 | Outdoor water engineering construction method |
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| CN108505607A (en) * | 2018-04-25 | 2018-09-07 | 安徽鸿佑建设工程有限公司 | A kind of municipal works subsoil drain construction technology process and its method |
| CN108797761A (en) * | 2018-07-04 | 2018-11-13 | 福建江夏学院 | A kind of integrate draining system construction method |
| CN108978679A (en) * | 2018-07-04 | 2018-12-11 | 山西太钢不锈钢股份有限公司 | A kind of method that cable tunnel is constructed in high water level region |
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| CN108505607A (en) * | 2018-04-25 | 2018-09-07 | 安徽鸿佑建设工程有限公司 | A kind of municipal works subsoil drain construction technology process and its method |
| CN108797761A (en) * | 2018-07-04 | 2018-11-13 | 福建江夏学院 | A kind of integrate draining system construction method |
| CN108978679A (en) * | 2018-07-04 | 2018-12-11 | 山西太钢不锈钢股份有限公司 | A kind of method that cable tunnel is constructed in high water level region |
| CN109060881B (en) * | 2018-07-31 | 2021-11-05 | 南宁海关技术中心 | Test pit for explosive single package test and stacking test |
| CN109060881A (en) * | 2018-07-31 | 2018-12-21 | 广西出入境检验检疫局危险品检测技术中心 | A kind of test pit for explosive single parcel post test and stacking test |
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| CN111677095A (en) * | 2020-06-19 | 2020-09-18 | 中建富林集团有限公司 | Construction method of drainage pipeline |
| CN112361076A (en) * | 2020-10-31 | 2021-02-12 | 广东创展博纳农业科技有限公司 | Construction method of buried pipeline |
| CN113266703A (en) * | 2020-11-23 | 2021-08-17 | 张同勇 | Construction method of underground water supply pipe |
| CN112901909B (en) * | 2021-01-21 | 2021-09-10 | 中国科学院西北生态环境资源研究院 | Buried pipeline fixing device and fixing method thereof |
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| CN113585426A (en) * | 2021-08-25 | 2021-11-02 | 北方国际合作股份有限公司 | Construction process of outdoor drainage pipeline |
| CN114319557A (en) * | 2022-02-28 | 2022-04-12 | 中建八局第二建设有限公司 | Permeable hidden drainage ditch and construction method thereof |
| CN114319556A (en) * | 2022-02-28 | 2022-04-12 | 中建八局第二建设有限公司 | Concealed water purification drainage ditch and construction method thereof |
| CN114319556B (en) * | 2022-02-28 | 2024-01-12 | 中建八局第二建设有限公司 | Concealed type water purification drainage ditch and construction method thereof |
| CN114319557B (en) * | 2022-02-28 | 2024-01-12 | 中建八局第二建设有限公司 | Permeable concealed drainage ditch and construction method thereof |
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Application publication date: 20180116 |