CN108930211A - The method for building heat preservation gutter using foam concrete - Google Patents
The method for building heat preservation gutter using foam concrete Download PDFInfo
- Publication number
- CN108930211A CN108930211A CN201810892184.5A CN201810892184A CN108930211A CN 108930211 A CN108930211 A CN 108930211A CN 201810892184 A CN201810892184 A CN 201810892184A CN 108930211 A CN108930211 A CN 108930211A
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- China
- Prior art keywords
- gutter
- ditches
- foam concrete
- irrigation canals
- groove
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The present invention provides a kind of methods for building heat preservation gutter using foam concrete, excavate the big irrigation canals and ditches of the outer dimension of pre-groove of the size than customizing in advance；Pre-groove is put into irrigation canals and ditches, so that pre-groove is not in contact with irrigation canals and ditches using cushion block；It is segmented into irrigation canals and ditches and foam concrete is perfused, until foam concrete fills up the gap between irrigation canals and ditches and pre-groove, form insulating layer in the gap, complete the construction in heat preservation gutter.The method of construction postpones freezing for the soil body using the thermal insulation property of foam concrete；Destruction of the frost-heave force of the soil body to concrete gutter is eliminated using the changeability performance of foam concrete.When dead season freezing soil, foam concrete heat-preserving gutter two sides do not have lateral frost-heave force, and the extruding for eliminating gutter destroys；Gutter bottom does not have Normal frost heave, and the frost heave for eliminating gutter lifts phenomenon.It ensure that gutter is not destroyed, there is preferable drainage effect effect and longer service life.
Description
Technical field
The invention belongs to Permafrost Area technical field of drainage, are related to a kind of build using foam concrete and keep the temperature gutter
Method.
Background technique
Pumping equipment is one of main auxiliary facility of line project.
The roadbed waterproof and drain measure referential experience of Permafrost Area is seldom.The pumping equipment of Qinghai-Tibet Highway is roadbed side
Direct ditching, fraction prefabricated board is most of without any measure, causes the frost heave and thaw collapse disease of Qinghai-Tibet Highway.
Wind volcano test its pumping equipment of roadbed built for 1975 obtains preferable effect using water blocking low bank between fields and turf gutter, but
Plateau eco-environment is severe, and turf can not obtain, this scheme is excluded on Qinghai-Tibet Railway Design.Most of is rule of thumb to adopt
The methods of water blocking low bank between fields, retaining dam, mortar flag stone gutter, concrete cast-in-situ and concrete prefabricated gutter is taken to carry out the anti-row of roadbed
Water process, since High-cold regions ground surface soil Frozen-thawed cycled is strong, rigid drainage structure is easy to cracking or faulting of slab ends, and right every year
Guarded drainage facility is conserved and is repaired, and a large amount of manpower financial capacity is consumed, and external related Permafrost Area roadbed guarded drainage is arranged
Apply aspect can experience for reference it is less.
Currently, the gutter deformation of Permafrost Region of Qinghai-Tibet or damaged very serious.Part location mortar flag stone water
Ditch, concrete prefabricated U shape and trapezoidal ditch are influenced in the dead season of ever-frozen ground seasonal active layer and warm season multigelation
Under, the junction deformation of the jointing and concrete prefabricated ditch that grout ditch is uneven, generates compared with large fracture；By body frost heaving
It influences, row (cutting) ditch, by failure by shear, causes prefabricated concrete member along ditch under the effect of horizontal cross frost-heave force
Longitudinally there is crack and grout ditch to collapse.
Summary of the invention
The object of the present invention is to provide a kind of methods for building heat preservation gutter using foam concrete, can build applicable
In the gutter of Permafrost Area, the influence of ever-frozen ground seasonal active layer dead season and warm season multigelation are reduced, is prevented
Gutter generates compared with large fracture and collapses.
To achieve the above object, the technical scheme adopted by the invention is that: it is a kind of using foam concrete build heat preservation row
The method in ditch, specifically sequentially includes the following steps:
1) irrigation canals and ditches are excavated in the region that gutter is built in Permafrost Area, the outer dimension of the sizes of irrigation canals and ditches than pre-groove
Greatly；
2) trench bottom places the second cushion block, and pre-groove is put into irrigation canals and ditches, pre-groove is made to be in contact with the second cushion block, then
The first cushion block is placed between pre-groove side wall and trench sidewall, and pre-groove is made not to be in contact with irrigation canals and ditches；
3) it is segmented into irrigation canals and ditches and foam concrete is perfused, until foam concrete fills up the gap between irrigation canals and ditches and pre-groove,
Insulating layer is formed in the gap, completes the construction in heat preservation gutter.
Method of construction of the present invention postpones freezing for the soil body using the thermal insulation property of foam concrete；Utilize foam concrete
Changeability performance eliminates destruction of the frost-heave force of the soil body to concrete gutter.When dead season freezing soil, foam concrete is protected
Warm water discharge ditch two sides do not have lateral frost-heave force, and the extruding for eliminating gutter destroys.Bottom does not have Normal frost heave, the row of eliminating
The frost heave in ditch lifts phenomenon.When the depth of freezing is greater than depth of drainage ditch, the freezing force of gutter soil at both sides makes concrete
Gutter and the soil body become whole, will not individually lift gutter.In addition if there is slight frost-heave force (ditch bottom or two
Side), since light foam concrete has higher compression and good ductility, makes it after biggish deformation occurs, do not send out
It is raw whole to destroy, can undertake, absorb rock deformation pressure, change structural body stress size, ensure that gutter is not destroyed, with compared with
Good drainage effect effect and longer service life.
Detailed description of the invention
Fig. 1 is the cross-sectional view that gutter semi-finished product are kept the temperature in construction process implementation process of the present invention.
Fig. 2 is the cross-sectional view in the heat preservation gutter being built into using method of construction of the present invention.
In figure: 1. first cushion blocks, 2. pre-grooves, 3. soil bodys, 4. irrigation canals and ditches, 5. second cushion blocks, 6. insulating layers.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The present invention provides it is a kind of using foam concrete build heat preservation gutter method, specifically according to the following steps into
Row:
1) irrigation canals and ditches 4 are excavated on the soil body 3 in the region that gutter is built in Permafrost Area, the size of irrigation canals and ditches 4 is than customization in advance
Pre-groove 2 the big 10~15cm of outer dimension；
2) the second cushion block 5 is placed in trench bottom then pre-groove 2 is put into irrigation canals and ditches 4, pad pre-groove 2 and second
Block 5 is in contact, then places the first cushion block 1 respectively between 4 two sidewalls of 2 two sidewalls of pre-groove and irrigation canals and ditches, makes pre-groove 2 not
It is in contact with irrigation canals and ditches 4, as shown in Figure 1；
First cushion block 1 and the second cushion block 5 are wooden unit.
3) it is segmented the foam concrete for being perfused that density is 600kg/m3 into irrigation canals and ditches 4, until foam concrete fills up irrigation canals and ditches 4
With the gap between pre-groove 2, insulating layer 6 is formed in the gap, completes the construction in heat preservation gutter, as shown in Figure 2.
Method of construction of the present invention utilizes the low thermal conductivity (0.14W/mk) of foam concrete, when dead season freezing soil
When, gutter two sides do not have lateral frost-heave force, and the extruding for eliminating gutter destroys.Gutter bottom does not have Normal frost heave,
The frost heave for eliminating gutter lifts phenomenon.When the depth of freezing is greater than depth of drainage ditch, the freezing force of gutter soil at both sides
So that concrete gutter and the soil body is become whole, will not individually lift gutter.In addition if there is slight frost-heave force (ditch
Bottom or two sides), since light foam concrete has higher compression and good ductility, make it that biggish deformation occur
Afterwards, whole destruction does not occur, can undertake, absorb rock deformation pressure, change structural body stress size, ensure that gutter is not broken
It is bad, there is preferable drainage effect effect and longer service life.
Example:
After the pumping equipment of Qinghai-Tibet Railway goes wrong, it is laid with metalling in the gutter bottom of certain test sections, is played
Preferable effect, defect are when there is ponding, and metalling is not kept the temperature, frost heave can occur when freezing, after 4 years, at these
There is precast concrete gutter to lift phenomenon in test section.After rubble gap is filled by soil for a long time, metalling
Effect is lost, although being isolated with waterproof geotextiles and soil layer, there is opening on top, still there is water entrance.And it is tried in other
It tests in section and uses present invention heat preservation gutter, after 4 years, phenomenon is not lifted in these heat preservation gutters, do not destroy,
Drainage effect is good, and has longer service life.
Claims (3)
1. a kind of method for building heat preservation gutter using foam concrete, which is characterized in that the method for construction is specifically pressed following
Step carries out:
1) irrigation canals and ditches (4) are excavated in the region that gutter is built in Permafrost Area, the size of irrigation canals and ditches (4) is than pre-groove (2)
Outer dimension is big；
2) trench bottom places the second cushion block (5), and pre-groove (2) is put into irrigation canals and ditches (4), pre-groove (2) and second are made
Cushion block (5) is in contact, then places the first cushion block (1) between pre-groove (2) side wall and irrigation canals and ditches (4) side wall, makes pre-groove
(2) it is not in contact with irrigation canals and ditches (4)；
3) be segmented to foam concrete is perfused in irrigation canals and ditches (4), until foam concrete fill up irrigation canals and ditches (4) and pre-groove (2) it
Between gap, in the gap formed insulating layer (6), complete heat preservation gutter construction.
2. the method according to claim 1 for building heat preservation gutter using foam concrete, which is characterized in that the step
It is rapid 1) in, the size of irrigation canals and ditches (4) is 10~15cm bigger than the outer dimension of the pre-groove (2) customized in advance.
3. the method according to claim 1 for building heat preservation gutter using foam concrete, which is characterized in that the step
It is rapid 3) in, be 600kg/m3 to the foam concrete density being perfused in irrigation canals and ditches (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892184.5A CN108930211A (en) | 2018-08-07 | 2018-08-07 | The method for building heat preservation gutter using foam concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892184.5A CN108930211A (en) | 2018-08-07 | 2018-08-07 | The method for building heat preservation gutter using foam concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108930211A true CN108930211A (en) | 2018-12-04 |
Family
ID=64444998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810892184.5A Pending CN108930211A (en) | 2018-08-07 | 2018-08-07 | The method for building heat preservation gutter using foam concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108930211A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931171A (en) * | 2021-10-28 | 2022-01-14 | 西安热工研究院有限公司 | Protection device for preventing tubular pile from being frozen and expanded and damaged |
| CN114075843A (en) * | 2021-11-15 | 2022-02-22 | 青海九零六工程勘察设计院有限责任公司 | Drainage ditch structure for preventing frost heaving cracking and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19520801C1 (en) * | 1995-06-07 | 1996-10-31 | Ahlmann Aco Severin | Sealing system for use between drainage channel sections |
| CN201648912U (en) * | 2010-04-26 | 2010-11-24 | 吴泽宏 | Prefabricated water drainage system groove |
| CN202755272U (en) * | 2012-09-11 | 2013-02-27 | 铁道第三勘察设计院集团有限公司 | Ballastless track high speed railway heat preservation and freeze protection hydrophobic subgrade structure |
| CN105545355A (en) * | 2016-01-19 | 2016-05-04 | 西南交通大学 | Drainage structure suitable for tunnel bottom in water-rich rock stratum |
| CN107034901A (en) * | 2016-12-01 | 2017-08-11 | 黑龙江省水土保持科学研究院 | A kind of flat ditch is built up fields erosion groove administering method |
| CN207347863U (en) * | 2017-09-04 | 2018-05-11 | 石家庄铁道大学 | A kind of seasonal frozen soil region high ferro subgrade bed thermal insulation board |
-
2018
- 2018-08-07 CN CN201810892184.5A patent/CN108930211A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19520801C1 (en) * | 1995-06-07 | 1996-10-31 | Ahlmann Aco Severin | Sealing system for use between drainage channel sections |
| CN201648912U (en) * | 2010-04-26 | 2010-11-24 | 吴泽宏 | Prefabricated water drainage system groove |
| CN202755272U (en) * | 2012-09-11 | 2013-02-27 | 铁道第三勘察设计院集团有限公司 | Ballastless track high speed railway heat preservation and freeze protection hydrophobic subgrade structure |
| CN105545355A (en) * | 2016-01-19 | 2016-05-04 | 西南交通大学 | Drainage structure suitable for tunnel bottom in water-rich rock stratum |
| CN107034901A (en) * | 2016-12-01 | 2017-08-11 | 黑龙江省水土保持科学研究院 | A kind of flat ditch is built up fields erosion groove administering method |
| CN207347863U (en) * | 2017-09-04 | 2018-05-11 | 石家庄铁道大学 | A kind of seasonal frozen soil region high ferro subgrade bed thermal insulation board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931171A (en) * | 2021-10-28 | 2022-01-14 | 西安热工研究院有限公司 | Protection device for preventing tubular pile from being frozen and expanded and damaged |
| CN114075843A (en) * | 2021-11-15 | 2022-02-22 | 青海九零六工程勘察设计院有限责任公司 | Drainage ditch structure for preventing frost heaving cracking and construction method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181204 |