CN106436596B - A kind of construction method for highway fiberglass sand inclusion pipe culverts - Google Patents
A kind of construction method for highway fiberglass sand inclusion pipe culverts Download PDFInfo
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- CN106436596B CN106436596B CN201611039972.7A CN201611039972A CN106436596B CN 106436596 B CN106436596 B CN 106436596B CN 201611039972 A CN201611039972 A CN 201611039972A CN 106436596 B CN106436596 B CN 106436596B
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- tube
- sand
- frp
- sand tube
- frp sand
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- 239000004576 sand Substances 0.000 title claims abstract description 153
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000011152 fibreglass Substances 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 23
- 238000005056 compaction Methods 0.000 claims abstract description 20
- 239000004927 clay Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 11
- 238000009412 basement excavation Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 5
- 238000005429 filling process Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000007569 slipcasting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a kind of construction method for highway fiberglass sand inclusion pipe culverts, in the processing of substrate, if substrate soil property is poor or when water content is higher, it should be changed using natural soft-clay soil and fill out 30cm, substrate compactness should be controlled not less than 98%.When being filled on standard fine sand with loess, the depth of fill is not less than 30cm, it is desirable that compaction Control is 96%, so as to ensure the stability of subgrade soils.Before FRP sand tube placement, first away from fiberglass sand inclusion tube hub both sides not less than 1.5m place use on the inside of carry elastic tape steel ring sleeve in FRP sand tube, then steel ring is fixed on loess by anchor bolt, FRP sand tube is fixed using steel ring, ensure that FRP sand tube will not generate excessive offset in the later stage because flow when washing away.FRP sand tube both sides backfill material selects medium coarse sand, and control compactness reaches more than 96%, makes FRP sand tube uniform force, significantly improve construction quality.
Description
Technical field
The invention belongs to highway FRP sand tube culvert construction method and technology fields, are related to a kind of for highway glass
The construction method of steel clamp sandpipe culvert.
Background technology
FRP sand tube is more and more extensive now is applied in road construction, and existing construction method is with push pipe
Mode construct, take hand pick formula carry out working face excavation, carry out jacking with jack pair FRP sand tube later.
After the completion of jacking, with the pipe outer void of cement concrete closed glass steel clamp sandpipe, by reserved injected hole from one end to another
End is filled slip casting to every FRP sand tube one by one.Slip casting effect carries out dual control using grouting pressure and range estimation effect
System.Such method easily leads to landslide due to full face tunneling and to the bad control of the uniform force of FRP sand tube.
Invention content
In view of the deficiencies of the prior art, the technical issues of present invention intends to solve be：It provides a kind of for highway glass steel clamp
The construction method of sandpipe culvert.This method in the construction process, can be while subgrade soils stability be improved, and can guarantee glass
The uniform force and overall stability of steel clamp sandpipe improve the scour resistance of FRP sand tube, and then improve construction quality.
The present invention solve the technical problem the technical solution adopted is that：It provides a kind of for highway fiberglass sand inclusion pipe culvert
The construction method in hole, Specific construction process are：
The first step, excavation of foundation pit
Foundation pit form of fracture is digged pit mode using slope, and foundation pit both sides are according to side slope height：Width=1：1.5 ratio is put
Slope；
Second step, base treatment
1) substrate is compacted using road roller, when substrate soil property is poor or water content is higher, is changed and filled out using natural soft-clay soil
30cm, substrate compaction Control are not less than 98%；
2) substrate is changed fill out after, in substrate with standard fine sand spread 10cm, no concave-convex, ensure standard fine sand it is smooth, make the later stage
Uniform force when FRP sand tube is placed；
3) on standard fine sand, loess is selected to be filled as roadbed filling, and packed height is not less than 30cm, it is desirable that
Compaction Control is 96%；
4) after compacting is smooth, grooving is carried out at the center of roadbed filling, is no less than by being dug under the radian of FRP sand tube
30cm；
Third step, pipeline are placed and are fixed
It is supported together every two meter amperes dress in FRP sand tube, then not small away from fiberglass sand inclusion tube hub both sides
Steel ring sleeve of the inside with elastic tape is used then can to carry out the peace of FRP sand tube in FRP sand tube at 1.5m
It puts, the position for placing FRP sand tube wants coincidence measurement person to require, after FRP sand tube places, by anchor bolt by steel ring
It is fixed on loess, and then completes the fixation of FRP sand tube；
4th step, both sides backfill
After FRP sand tube placement fixation is appropriate, with medium coarse sand to the tube bottom edge of FRP sand tube and the sky of foundation pit
It is carefully filled at gap, and with compacting tool hand compaction；In FRP sand tube both sides in medium coarse sand filling process, often
Filling 20cm height is tamped with battering ram, and compactness reaches more than 96%, for the following glass of FRP sand tube radial height
The medium coarse sand of steel clamp sandpipe adjacent edges needs progress hand compaction complete；
5th step, open to traffic
After both sides backfill highly reaches and flushed with the tube top of FRP sand tube, in the tube top of FRP sand tube
End is filled, and is first filled with medium coarse sand, and the height for filling medium coarse sand is 20cm, is then gathered around according to practice of construction scene
Some soil properties are filled, and are reached final filled height not less than after 50cm, are carried out upper end compacting with road roller, it is desirable that compactness
Not less than 95%；Compacting finishes, and meet compactness and the depth of fill requirement after, can let pass traffic；
6th step, support dismounting
When the tube top upper end height to earth up of FRP sand tube is more than 1m, after clearance traffic 5 days, branch can be all removed
Support；When the tube top upper end height to earth up of FRP sand tube is not more than 1m, after clearance traffic 5 days, retain intermediate and both sides 3
Road supports, remaining whole removes, and remaining 3 support is removed after 15 days in clearance traffic.
Compared with prior art, the beneficial effects of the invention are as follows：
In the construction process, moment control soil compaction degree can effectively ensure that the stability of subgrade soils, chooses the present invention
Medium coarse sand is expected as backfill, and FRP sand tube is fixed with steel ring, ensure that the steady of FRP sand tube entirety
Scour resistance that is qualitative and improving FRP sand tube in the later stage.
I.e. in the processing of substrate, if substrate soil property is poor or when water content is higher, it should be changed and filled out using natural soft-clay soil
30cm, substrate compactness should be controlled not less than 98%.When being filled on standard fine sand with loess, the depth of fill is not less than
30cm, it is desirable that compaction Control is 96%, so as to ensure the stability of subgrade soils.Before FRP sand tube placement, first
It is being not less than the steel ring sleeve for carrying elastic tape at 1.5m on the inside of use in FRP sand tube away from fiberglass sand inclusion tube hub both sides,
Then steel ring is fixed on loess by anchor bolt, FRP sand tube is fixed using steel ring, can ensure glass in this way
Glass steel clamp sandpipe will not generate excessive offset in the use in later stage because flow when washing away.FRP sand tube both sides backfill
Material selects medium coarse sand, because of the good water permeability of medium coarse sand particle equalization loess, can also provide required compactness and reach 96%
More than, in this case, make FRP sand tube uniform force, and ensure FRP sand tube overall stability, so as to carry
High construction quality, makes FRP sand tube that can preferably play effect in later stage use.
Description of the drawings
Fig. 1 is that steel ring position view is installed in the FRP sand tube of the present invention, and wherein Fig. 1 (a) is fiberglass sand inclusion
The front view of pipe axial direction, Fig. 1 (b) are the front view of FRP sand tube radial direction；
Fig. 2 is the main view sectional view of a diameter of 1.5m FRP sand tube work progress；
Fig. 3 is the main view sectional view of a diameter of 1m FRP sand tube work progress.
In figure, 1 FRP sand tube, 2 steel rings, 3 anchor bolts.
Specific embodiment
The present invention is explained further, but do not protected in this, as to the application claim with reference to embodiment and attached drawing
Protect the restriction of range.
The present invention is used for the construction method (abbreviation method) of highway fiberglass sand inclusion pipe culverts, and Specific construction process is：
The first step, excavation of foundation pit
Foundation pit form of fracture is digged pit mode using slope, and foundation pit both sides are according to side slope height：Width=1：1.5 ratio is put
Slope.Specific excavation of foundation pit size can be required according to water supply and sewerage pipeline construction inspection rules, and excavation of foundation pit width ordinary circumstance is
Twice of fiberglass sand inclusion pipe diameter can slightly be adjusted according to practice of construction situation；
Second step, base treatment
1) substrate is compacted using road roller, when substrate soil property is poor or water content is higher, is changed and filled out using natural soft-clay soil
30cm, substrate compaction Control are not less than 98%；
2) substrate is changed fill out after, in substrate with standard fine sand spread 10cm, no concave-convex, ensure standard fine sand it is smooth, make the later stage
Uniform force when FRP sand tube is placed；
3) on standard fine sand, loess is selected to be filled as roadbed filling, and packed height is not less than 30cm, it is desirable that
Compaction Control is 96%；
4) after compacting is smooth, grooving is carried out at the center of roadbed filling, is no less than by being dug under the radian of FRP sand tube
30cm；
Third step, pipeline are placed and are fixed
It is supported together every two meter amperes dress in FRP sand tube, then not small away from fiberglass sand inclusion tube hub both sides
It is sleeved in FRP sand tube 1 with steel ring 2 of the inside with elastic tape at 1.5m, then can carry out FRP sand tube
Placement；The position for placing FRP sand tube wants coincidence measurement person to require, and after FRP sand tube places, passes through anchor bolt 3
Steel ring is fixed on loess (referring to Fig. 1), and then completes the fixation of FRP sand tube；
4th step, both sides backfill
After FRP sand tube placement fixation is appropriate, with medium coarse sand to the tube bottom edge of FRP sand tube and the sky of foundation pit
It is carefully filled at gap, and with compacting tool (waddy, spade etc.) hand compaction.In FRP sand tube both sides medium coarse sand
In filling process, often fill 20cm height and tamped with battering ram, compactness reaches more than 96%, for FRP sand tube radius
The medium coarse sand of the following FRP sand tube adjacent edges of height needs progress hand compaction complete, because being herein the work of battering ram
Make dead angle, so wanting hand compaction complete, it is impossible to which there are gaps；
5th step, open to traffic
After both sides backfill highly reaches and flushed with the tube top of FRP sand tube, in the tube top of FRP sand tube
It is filled at end.It is first filled with medium coarse sand, the height for filling medium coarse sand is 20cm, is then gathered around according to practice of construction scene
Some soil properties are filled, and are reached final filled height not less than after 50cm, are carried out upper end compacting with road roller, it is desirable that compactness
Not less than 95%.Compacting finishes, and meet compactness and the depth of fill requirement after, can let pass traffic；
6th step, support dismounting.
When the tube top upper end height to earth up of FRP sand tube is more than 1m, after clearance traffic 5 days, branch can be all removed
Support；When the tube top upper end height to earth up of FRP sand tube is not more than 1m, after clearance traffic 5 days, retain 3 supports, i.e., in
Between and both sides totally 3, remaining whole removes, and remaining 3 support is removed after 15 days in clearance traffic.
Burning into sand tube hub described in Fig. 1 (a) of the present invention refers to the axial centre position of entire FRP sand tube 1,
The equal length of FRP sand tube at left and right sides of the burning into sand tube hub.
Embodiment 1
The a diameter of 1.5m of FRP sand tube of the present embodiment.For highway culvert draining, the soil property of construction site is glutinous
Soil, FRP sand tube upper end height to earth up are less than 1m.
Specific construction process is：
Foundation pit form of fracture is digged pit mode using slope, and foundation pit both sides are according to side slope height：Width=1：1.5 ratio put
Slope, as a diameter of 1.5m, foundation pit excavation width be 3m, substrate change fill out natural soft-clay width for 3.5m (in foundation pit excavation width
On the basis of 3m plus 0.5m is 3.5m) (referring to Fig. 2).
It during base treatment, is changed and filled out using 30cm natural soft-clays, compactness 98% forms 30cm natural soft-clays basis.Base
Bottom is changed fill out after, first in substrate with standard fine sand spread 10cm, then on standard fine sand, select loess as roadbed filling progress
Filling, packed height 40cm, compactness 96%.Roadbed filling center after compaction, by the radian of FRP sand tube
Lower digging 40cm.
It is supported together every two meter amperes dress in FRP sand tube, then away from fiberglass sand inclusion tube hub both sides 1.5m
Steel ring sleeve of the inside with elastic tape is used in FRP sand tube in place；When placing FRP sand tube, the position of placement will
Coincidence measurement person requires, and steel ring is fixed on loess finally by anchor bolt.
After FRP sand tube is placed, in its both sides hierarchical synchronization filling medium coarse sand, and per the punching of 20cm height
Rammer compacting is hit, control compactness reaches more than 96%, needs to fill to tube top and flush.It should be noted that FRP sand tube half
Diameter height needs hand compaction with the compacting of lower part tube edge medium coarse sand, it is impossible to which there are gaps.
When being filled to tube top top, placement in layers thickness is carried out according to roadbed filling code requirement, and compactness is
95%.Compacting finishes, and meet compactness and the depth of fill requirement after, can let pass traffic.
The FRP sand tube of diameter 1.5m, can only retain 3 supports after clearance traffic 5 days, i.e., intermediate and both sides totally 3
Road, remaining whole remove.Remaining 3 support is removed after 15 days in clearance traffic.
Embodiment 2
The a diameter of 1m of FRP sand tube of the present embodiment.For highway culvert draining, the soil property of construction site is clay,
FRP sand tube upper end height to earth up is less than 1m.
Specific construction process is：
Foundation pit form of fracture is digged pit mode using slope, and foundation pit both sides are according to side slope height：Width=1：1.5 ratio is put
Slope, as a diameter of 1m, foundation pit excavation width be 2.5m, substrate change fill out natural soft-clay width for 3m (in foundation pit excavation width
On the basis of 2.5m plus 0.5m is 3m) (referring to Fig. 3).
It during base treatment, is changed and filled out using 30cm natural soft-clays, compactness 98% forms 30cm natural soft-clays basis.Base
Bottom is changed fill out after, with standard fine sand paving 10cm or so in substrate, then on standard fine sand, select loess as roadbed filling into
Row filling, packed height 30cm, compactness 96%.Roadbed filling center after compaction, by the arc of FRP sand tube
Degree is lower to dig 30cm.
It is supported together every two meter amperes dress in FRP sand tube, then at away from fiberglass sand inclusion tube hub both sides 2m
With steel ring sleeve of the inside with elastic tape in FRP sand tube, then when placing FRP sand tube, the position of placement
Coincidence measurement person is wanted to require, steel ring is fixed on loess finally by anchor bolt.
After FRP sand tube is placed, in its both sides hierarchical synchronization filling medium coarse sand, and per the punching of 20cm height
Rammer compacting is hit, control compactness reaches more than 96%, needs to fill to tube top and flush.It should be noted that FRP sand tube half
Diameter height needs hand compaction with the compacting of lower part tube edge medium coarse sand, it is impossible to which there are gaps.
When being filled to tube top top, placement in layers thickness is carried out according to roadbed filling code requirement, and compactness is
96%.Compacting finishes, and meet compactness and the depth of fill requirement after, can let pass traffic.
The FRP sand tube of diameter 1m, can only retain 3 supports after clearance traffic 5 days, i.e., intermediate and both sides totally 3,
Remaining whole removes.Remaining 3 support is removed after 15 days in clearance traffic.
By the practical application of the two examples, the actual effect of generation is：It, can by controlling soil compaction degree constantly
The stability of subgrade soils is effectively ensured, chooses medium coarse sand and expects as backfill, and FRP sand tube is fixed with steel ring,
It ensure that the stability of FRP sand tube entirety, and the antiscour of FRP sand tube significantly improved when applying in the later stage
Property, so as to improve construction quality.
The present invention does not address part and is suitable for the prior art.
Claims (1)
1. a kind of construction method for highway fiberglass sand inclusion pipe culverts, Specific construction process are：
The first step, excavation of foundation pit
Foundation pit form of fracture is digged pit mode using slope, and foundation pit both sides are according to side slope height：Width=1：1.5 ratio slope；
Second step, base treatment
1) substrate is compacted using road roller, when substrate soil property is poor or water content is higher, is changed using natural soft-clay soil and is filled out 30cm,
Substrate compaction Control is not less than 98%；
2) substrate is changed fill out after, in substrate with standard fine sand spread 10cm, no concave-convex, ensure standard fine sand it is smooth, make later stage glass
Uniform force when steel clamp sandpipe is placed；
3) on standard fine sand, loess is selected to be filled as roadbed filling, and packed height is not less than 30cm, it is desirable that compacting
Degree control is 96%；
4) after compacting is smooth, grooving is carried out at the center of roadbed filling, 30cm is no less than by being dug under the radian of FRP sand tube；
Third step, pipeline are placed and are fixed
It supports every two meter amperes dress in FRP sand tube, is then not less than away from fiberglass sand inclusion tube hub both sides together
Steel ring sleeve of the inside with elastic tape is used then can to carry out the peace of FRP sand tube in FRP sand tube at 1.5m
It puts；Coincidence measurement person's requirement want in the position for placing FRP sand tube, after FRP sand tube places, by anchor bolt by steel ring
It is fixed on loess, and then completes the fixation of FRP sand tube；
4th step, both sides backfill
After FRP sand tube placement fixation is appropriate, with medium coarse sand to the tube bottom edge of FRP sand tube and the gap of foundation pit
It is carefully filled, and with compacting tool hand compaction；In FRP sand tube both sides in medium coarse sand filling process, often fill
20cm height is tamped with battering ram, and compactness reaches more than 96%；For the following glass steel clamp of FRP sand tube radial height
The medium coarse sand of sandpipe adjacent edges needs to carry out hand compaction；
5th step, open to traffic
After in both sides, backfill height reaches and is flushed with the tube top of FRP sand tube, to the tube top upper end of FRP sand tube into
Row fills, and is first filled with medium coarse sand, and the height for filling medium coarse sand is 20cm, is then possessed according to practice of construction scene
Soil property is filled, and is reached final filled height not less than after 50cm, is carried out upper end compacting with road roller, it is desirable that compactness is not low
In 95%；Compacting finishes, and meet compactness and the depth of fill requirement after, can let pass traffic；
6th step, support dismounting
When the tube top upper end height to earth up of FRP sand tube is more than 1m, after clearance traffic 5 days, support is all removed；Work as glass
When the tube top upper end height to earth up of glass steel clamp sandpipe is not more than 1m, after clearance traffic 5 days, retain intermediate and both sides 3 support,
Remaining whole removes, and remaining 3 support is removed after 15 days in clearance traffic.
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| CN201611039972.7A CN106436596B (en) | 2016-11-24 | 2016-11-24 | A kind of construction method for highway fiberglass sand inclusion pipe culverts |
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| CN201611039972.7A CN106436596B (en) | 2016-11-24 | 2016-11-24 | A kind of construction method for highway fiberglass sand inclusion pipe culverts |
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| CN106436596B true CN106436596B (en) | 2018-06-19 |
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| CN106436596A (en) | 2017-02-22 |
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Inventor after: Wei Lianyu Inventor after: Wang Yang Inventor after: Liang Xiao Inventor after: Tan Aolong Inventor after: Zheng Yanjun Inventor after: Chen Zhaonan Inventor after: Zhang Guopan Inventor after: Li Na Inventor after: Zhang Jing Inventor before: Wei Lianyu Inventor before: Wang Yang Inventor before: Chen Zhaonan Inventor before: Zhang Jing Inventor before: Zheng Yanjun Inventor before: Liang Xiao Inventor before: Zhang Guopan Inventor before: Li Na Inventor before: Tan Aolong |
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