CN109594442A - Garden path construction technology - Google Patents
Garden path construction technology Download PDFInfo
- Publication number
- CN109594442A CN109594442A CN201811529241.XA CN201811529241A CN109594442A CN 109594442 A CN109594442 A CN 109594442A CN 201811529241 A CN201811529241 A CN 201811529241A CN 109594442 A CN109594442 A CN 109594442A
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- Prior art keywords
- soil
- road
- roadbed
- excavation
- construction technology
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/04—Pavings made of prefabricated single units made of bricks
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- 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 garden path construction technologies comprising step 1, roadway segment；Step 2, the clear table of road；Step 3, roadbed excavation, first measures soil property before excavation, and the depth of every section of excavation is determined according to the absolute altitude of soil property and measurement；Step 4, road embankment after filling completion, tamp soil at this with rammer compacter, and it is flat then to carry out thick gentle essence to bull-dozer and Slicking apparatus respectively；Step 5, to multiple rows of quincuncial pile is squeezed at the uncompacted position of building foundation pit, the pile body of adjacent two rows quincuncial pile is staggered, and each quincuncial pile is all made of log material, and the top of flower stake is concordant with the upper surface of roadbed；Step 6 is laid with pervious bed；Step 7, casting concrete；Step 8, concreting carry out sprinkling maintenance to it after completing；Step 9 is laid with masonry layer.The present invention has the effect of to support in the roadbed shakiness of road to prevent from locally sinking.
Description
Technical field
The present invention relates to the technical fields of road construction, more particularly, to a kind of garden path construction technology.
Background technique
Garden road refers to the road engineering in gardens, the design including garden road layout, pavement layer structure and ground pavement etc..Garden
Forest-road road is the component part in gardens, plays organization space, guidance visit, traffic connection and provides the work of stroll recreating facility
With.It unifies each scenic spot in gardens as train of thought.Garden road itself is the component part of Scenery of gardens again, is wriggled
The curve that Yan rises and falls, implied meaning abundant, exquisite pattern all give the enjoyment of beauty.
The existing application publication number that can refer to is the patent document of CN107829342A, and it discloses a kind of ecological gardens
Road and its rapid construction engineering method include from below to up roadbase and gardens supercrust, in roadbase and gardens supercrust
Between be embedded with pipeline, the pipeline is equipped with the insulation close to roadbase, and the pipeline is equipped with close to gardens supercrust
Radiating part, the radiating part are equipped with air hole, and the air hole is parallel to outer layer axis, and the air hole of the pipeline is along outer layer
Circumferencial direction is uniformly distributed, and the gardens supercrust includes water-permeable brick frame, is separated with several installations in the water-permeable brick frame
Slot, the mounting groove are wedge groove up big and down small, up and down, are placed with the water-permeable brick to match, institute in the mounting groove
Stating water-permeable brick frame includes end to end moulding, and the moulding integration connects framed wall, is equably provided on the frame wall
Perforation, the invention heat gardens road surface by steam to melt ice and snow, are not in leaky, securely and reliably.
Prior art among the above has the following deficiencies: during garden layout, is often building road
It constructs around building, builds during construction, usually first dig foundation pit, building up and then foundation pit is backfilled, but
Be generally backfilled during backfill it is not closely knit enough, in this way if this kind building around progress gardens road construction, such as
Fruit road construction was completed and after a period of time of constructing, the ground at this have it is certain sink, such road can generate cracking
It is even broken, influences the use of pedestrian, and repair trouble.
Summary of the invention
The object of the present invention is to provide a kind of can to support in the roadbed shakiness of road to prevent under part
Sunken garden path construction technology.
Foregoing invention purpose of the invention has the technical scheme that
A kind of garden path construction technology, including step 1, roadway segment；Step 2, the clear table of road, what removing needed to construct is somebody's turn to do
Tree root, weeds and some wastes on Duan Daolu, are then filled up recess with soil, and protrusion is bulldozed；Step 3,
Roadbed excavation, first measures soil property before excavation, and the depth of every section of excavation is determined according to the absolute altitude of soil property and measurement；
Step 4, road embankment after filling completion, tamp soil at this with rammer compacter, then respectively to bull-dozer and scraping
It is flat that flat machine carries out thick gentle essence；Step 5, to squeezing into multiple rows of quincuncial pile at the uncompacted position of building foundation pit, adjacent two rows plum blossoms
The pile body of stake is staggered, and each quincuncial pile is all made of log material, and the top of flower stake is concordant with the upper surface of roadbed；Step
Six, it is laid with pervious bed；Step 7, casting concrete；Step 8, concreting carry out sprinkling maintenance to it after completing；Step
Rapid nine, it is laid with masonry layer.
By using above-mentioned technical proposal, when paving the way around building, by the lower part in roadbed squeeze into quincuncial pile come pair
It is supported in soil under roadbed, and then reinforces the enabling capabilities of soil herein, when building surrounding backfill occurs to sink,
Quincuncial pile can play the role of support to road, to ensure that the stability of road when in use.
The present invention is further arranged to: first different location digs out the identical soil of several volumes around civic building when excavation
Block, and several soil blocks identical with soil block volume around civic building are dug out at far from the position around civic building, and point
The other quality to two kinds of different soil blocks measures, and removes mass difference is big in the group part and find out average matter respectively
Amount, if the mass difference of two distinct types of soil block is not more than 8%, the direct embankment after roadbed is dug.
It by using above-mentioned technical proposal, is measured by the quality to soil herein, to obtain time herein
Whether density of banketing is enough, if enough, not needing to squeeze into quincuncial pile, saving the amount of labour.
The present invention is further arranged to: embankment Shi Xianyong road roller carries out slightly to be compacted to roadbed, then with bull-dozer
It is flat, it is flat that essence then is carried out with Slicking apparatus.
By using above-mentioned technical proposal, road is bulldozed with bull-dozer and Slicking apparatus respectively, to guarantee that road is flat
It is whole.
The present invention is further arranged to: if the mass difference 8-15% of two distinct types of soil block, illustrates original building
Foundation pit is not closely knit enough in backfill, continues to excavate downwards to the soil at this around building in this way, and excavates to when construction
The depth of foundation pit；
For the section deep-cut, backfilled again with soil to deep-cutting section at this, and add lime in the soil, and it is laggard
Row embankment after filling completion, tamps soil at this with rammer compacter, then carries out respectively to bull-dozer and Slicking apparatus thick
Gentle essence is flat.
By using above-mentioned technical proposal, when the soil density of original foundation pit is inadequate, by foundation pit at road
Soil digs out again and backfills again, and lime is added in interior soil during backfill, so that the moisture in soil is absorbed,
Increase degree of adhesion, further ensures the density of soil.
The present invention is further arranged to: being laid on roadbed using the thinner sandstone of quality, while during laying
Inside incorporation rubble, laying depth 15-20cm are laid with after completing, and are sprinkled water on the surface of graded sand and stone.
It is reduced by using above-mentioned technical proposal by the watering on rubble and cobble to guarantee the water content of sandstone
The cracking situation of rubble.
The present invention is further arranged to: frequency of sprinkling water when starting to conserve is big, gradually decreases after conserving several days
Watering amount is until maintenance is completed.
By using above-mentioned technical proposal, due to the reaction that concrete is more violent, later in the reaction for starting Shi Yushui
It is then slower and slower, on the one hand guarantee that the absorption of concrete and water is abundant, on the one hand reduces water by using this watering mode
Waste.
The present invention is further arranged to: the waste of removing is transported to specified dump area by transport vehicle and abandons, for having
The road surface of mud uses the soil with sand to fill the surface of road.
By using above-mentioned technical proposal, by driving the soil of sand to fill mud road to facilitate and excavate.
The present invention is further arranged to: the two sides of every section of place road and end are laid with steel template, and adjacent punching block should be put down
Head interlocking mode close-coupled, template need the side adjacent with concrete to smear interleaving agent, and casting concrete is until complete.
By using above-mentioned technical proposal, make template and the concrete that pours completion by smearing interleaving agent in template
Bonding force is smaller, and template is easier to remove.
In conclusion advantageous effects of the invention are as follows:
1. the present invention guarantees the local collapse on gardens road surface by stamping quincuncial pile in the road bottom around building；
2. the present invention is tested by the soil to around building and other region to show whether soil at this time is closely knit, from
And it sees and whether needs staggered piling；
3. the present invention adds lime by being backfilled again to the more loose soil of soil property to guarantee the close of the soil of backfill
Degree.
Detailed description of the invention
Fig. 1 is overall flow schematic diagram of the invention.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
It referring to Fig.1, is a kind of garden path construction technology disclosed by the invention, comprising:
Step 1, roadway segment, the prospecting of advanced trade road ambient conditions before being constructed, according to prospecting the case where to road
It is segmented, and determines the tandem of the construction of different sections of highway, for the section of more difficult construction, the period after relatively is carried out
Construction, for more easy working section, constructs, and survey to the length and width of every section of road in the period earlier above
Amount.
Step 2, the clear table of road remove tree root, weeds and some wastes on this section of road for needing to construct, then
Recess being filled up with soil, and protrusion is bulldozed, the waste of removing is transported to specified dump area by transport vehicle and abandons,
For there is the road surface of mud that the soil with sand is used to fill the surface of road.
Step 3, roadbed excavation, first measures soil property before excavation, and is determined according to soil property and the absolute altitude of measurement
The depth of every section of excavation will reserve more decrement for some relatively soft soil properties, then with excavator to pavement of road
It is excavated, the soil dug down is transported with transport vehicle.Since the cutting depth of garden path is lower than civic building
Cutting depth, when excavating to the road surface around civic building, first different location digs out several individuals around civic building
The identical soil block of product, and dig out at far from the position around civic building several identical with soil block volume around civic building
Soil block, and the quality of two kinds of different soil blocks is measured respectively, and remove the biggish part of mass difference and difference in the group
Average quality is found out, if if the mass difference of two distinct types of soil block is not more than 8%, it is straight after roadbed is dug
Embankment is connect, is then first slightly put down with road roller to be compacted to roadbed, then with bull-dozer, then carries out essence with Slicking apparatus
It is flat.
Step 4 illustrates original building foundation pit in backfill if the mass difference 8-15% of two distinct types of soil block
It is not closely knit enough, in this way the soil at this around building is continued to excavate downwards, and excavate the depth to foundation pit when construction.
For the section deep-cut, backfilled again with soil to deep-cutting section at this, and add lime in the soil, and
After carry out embankment, after filling completion, soil at this is tamped with rammer compacter, then respectively to bull-dozer and Slicking apparatus into
The thick gentle essence of row is flat.
Step 5 for aperture at the soil locations that backfill again, and is squeezed into quincuncial pile, is beaten according to the different in width of road
Enter 3-5 row, the pile body of adjacent two rows quincuncial piles is staggered, and each quincuncial pile is all made of log material, the top of quincuncial pile with
The upper surface of roadbed is concordant.
Step 6 is laid with pervious bed, is laid on roadbed using the thinner sandstone of quality, while interior during laying
Portion mixes a small amount of rubble or cobble, and laying depth 15-20cm is laid with after completing, and sprinkles water on the surface of graded sand and stone, really
The water content for protecting graded sand and stone, is then tamped with ramming machine.
Step 7, casting concrete are laid with steel die in the two sides of every section of road and end since road is divided into multistage
Plate, adjacent punching block answer tack interlocking mode close-coupled, and template needs the side adjacent with concrete to smear interleaving agent, pours mixed
Solidifying soil is until complete.
Step 8, concreting carry out sprinkling maintenance to it after completing, and frequency of sprinkling water when starting to be conserved is big,
Watering amount is gradually decreased after conserving several days until maintenance is completed.
Step 9 is laid with masonry layer, and the different landscape need in root is laid with brick or cobble, checks and beats after having spread
It is flat, it conserves 7-14 days, after one section of road pavement is completed, is laid with another section, is completed until being laid with.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of garden path construction technology, it is characterised in that: including step 1, roadway segment；
Step 2, the clear table of road remove tree root, weeds and some wastes on this section of road for needing to construct, then with soil
Earth fills up recess, and protrusion is bulldozed；
Step 3, roadbed excavation, first measures soil property before excavation, and determines every section according to soil property and the absolute altitude of measurement
The depth of excavation；
Step 4, road embankment after filling completion, tamp soil at this with rammer compacter, then respectively to bull-dozer
It is flat that thick gentle essence is carried out with Slicking apparatus；
Step 5, to multiple rows of quincuncial pile is squeezed at the uncompacted position of building foundation pit, the pile body of adjacent two rows quincuncial pile is staggeredly set
It sets, each quincuncial pile is all made of log material, and the top of flower stake is concordant with the upper surface of roadbed；
Step 6 is laid with pervious bed；
Step 7, casting concrete；
Step 8, concreting carry out sprinkling maintenance to it after completing；
Step 9 is laid with masonry layer.
2. garden path construction technology according to claim 1, it is characterised in that: when excavation first around civic building not
The identical soil block of several volumes is dug out with position, and digs out several and civic building week at far from the position around civic building
The identical soil block of soil block volume is enclosed, and the quality of two kinds of different soil blocks is measured respectively, and remove mass difference in the group
Big part simultaneously finds out average quality respectively, if the mass difference of two distinct types of soil block is not more than 8%, in roadbed
Dig good direct embankment later.
3. garden path construction technology according to claim 2, it is characterised in that: embankment Shi Xianyong road roller is to roadbed
It is compacted, then is slightly put down with bull-dozer, it is flat then to carry out essence with Slicking apparatus.
4. garden path construction technology according to claim 1, it is characterised in that: if two distinct types of soil block
Mass difference 8-15%, then illustrate original building foundation pit backfill when it is not closely knit enough, in this way at this building around soil continue to
Lower excavation, and excavate the depth to foundation pit when construction；
For the section deep-cut, backfilled again with soil to deep-cutting section at this, and add lime in the soil, and it is laggard
Row embankment after filling completion, tamps soil at this with rammer compacter, then carries out respectively to bull-dozer and Slicking apparatus thick
Gentle essence is flat.
5. garden path construction technology according to claim 1, it is characterised in that: be laid on using the thinner sandstone of quality
On roadbed, while internal incorporation rubble during laying, laying depth 15-20cm are laid with after completing, in graded sand
It sprinkles water on the surface of stone.
6. garden path construction technology according to claim 1, it is characterised in that: frequency of sprinkling water when starting to be conserved
Greatly, watering amount is gradually decreased after conserving several days until maintenance is completed.
7. garden path construction technology according to claim 1, it is characterised in that: the waste of removing is transported by transport vehicle
It is abandoned to specified dump area, for there is the road surface of mud that the soil with sand is used to fill the surface of road.
8. garden path construction technology according to claim 1, it is characterised in that: the two sides and end of every section of place road
Be laid with steel template, adjacent punching block answers tack interlocking mode close-coupled, template need the side smearing adjacent with concrete every
From agent, casting concrete is until complete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811529241.XA CN109594442B (en) | 2018-12-14 | 2018-12-14 | Garden road construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811529241.XA CN109594442B (en) | 2018-12-14 | 2018-12-14 | Garden road construction process |
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| Publication Number | Publication Date |
|---|---|
| CN109594442A true CN109594442A (en) | 2019-04-09 |
| CN109594442B CN109594442B (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811529241.XA Active CN109594442B (en) | 2018-12-14 | 2018-12-14 | Garden road construction process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735373A (en) * | 2019-10-09 | 2020-01-31 | 北京夏都水利工程有限公司 | field road construction method |
| CN112116257A (en) * | 2020-09-22 | 2020-12-22 | 苏宇航 | Engineering cost evaluation intelligent management system based on big data |
| CN112160210A (en) * | 2020-09-17 | 2021-01-01 | 浙江同济科技职业学院 | Landscape road construction process |
| CN113981762A (en) * | 2021-11-10 | 2022-01-28 | 安徽东方风景建设有限公司 | Construction method of small-radian special-shaped granite |
| CN115748383A (en) * | 2022-12-15 | 2023-03-07 | 浙江沧海建设有限公司 | Garden road pavement paving process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109167A (en) * | 2006-07-21 | 2008-01-23 | 河南万里路桥工程有限公司 | Technique method for processing subgrade disease |
| CN103758133A (en) * | 2014-01-13 | 2014-04-30 | 河海大学 | Deep soft soil foundation pit reinforcement method |
| CN103757999A (en) * | 2014-01-08 | 2014-04-30 | 江苏花王园艺股份有限公司 | Construction method for reforming overall topography by determining elevations by adopting garden path foundation trench excavation |
| CN105040554A (en) * | 2015-06-23 | 2015-11-11 | 滁州市瑞景园林建设有限公司 | Garden path structure and paving construction technology thereof |
| CN105463967A (en) * | 2015-11-19 | 2016-04-06 | 中建七局第二建筑有限公司 | Water-permeable wear-resistant garden path and construction method thereof |
| CN108611948A (en) * | 2018-04-24 | 2018-10-02 | 西安建筑科技大学 | A kind of urban road permeable pavement structure |
| CN108677638A (en) * | 2018-05-29 | 2018-10-19 | 上海交通大学 | Express highway roadbed dam filling construction based on building waste |
-
2018
- 2018-12-14 CN CN201811529241.XA patent/CN109594442B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109167A (en) * | 2006-07-21 | 2008-01-23 | 河南万里路桥工程有限公司 | Technique method for processing subgrade disease |
| CN103757999A (en) * | 2014-01-08 | 2014-04-30 | 江苏花王园艺股份有限公司 | Construction method for reforming overall topography by determining elevations by adopting garden path foundation trench excavation |
| CN103758133A (en) * | 2014-01-13 | 2014-04-30 | 河海大学 | Deep soft soil foundation pit reinforcement method |
| CN105040554A (en) * | 2015-06-23 | 2015-11-11 | 滁州市瑞景园林建设有限公司 | Garden path structure and paving construction technology thereof |
| CN105463967A (en) * | 2015-11-19 | 2016-04-06 | 中建七局第二建筑有限公司 | Water-permeable wear-resistant garden path and construction method thereof |
| CN108611948A (en) * | 2018-04-24 | 2018-10-02 | 西安建筑科技大学 | A kind of urban road permeable pavement structure |
| CN108677638A (en) * | 2018-05-29 | 2018-10-19 | 上海交通大学 | Express highway roadbed dam filling construction based on building waste |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735373A (en) * | 2019-10-09 | 2020-01-31 | 北京夏都水利工程有限公司 | field road construction method |
| CN112160210A (en) * | 2020-09-17 | 2021-01-01 | 浙江同济科技职业学院 | Landscape road construction process |
| CN112116257A (en) * | 2020-09-22 | 2020-12-22 | 苏宇航 | Engineering cost evaluation intelligent management system based on big data |
| CN112116257B (en) * | 2020-09-22 | 2021-05-11 | 中诚工程建设管理（苏州）股份有限公司 | Engineering cost evaluation intelligent management system based on big data |
| CN113981762A (en) * | 2021-11-10 | 2022-01-28 | 安徽东方风景建设有限公司 | Construction method of small-radian special-shaped granite |
| CN115748383A (en) * | 2022-12-15 | 2023-03-07 | 浙江沧海建设有限公司 | Garden road pavement paving process |
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| Publication number | Publication date |
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| CN109594442B (en) | 2020-12-11 |
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