CN105926395B - A kind of road structure and construction method for eliminating newly-built roadbed consolidation settlement - Google Patents
A kind of road structure and construction method for eliminating newly-built roadbed consolidation settlement Download PDFInfo
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- CN105926395B CN105926395B CN201610461081.4A CN201610461081A CN105926395B CN 105926395 B CN105926395 B CN 105926395B CN 201610461081 A CN201610461081 A CN 201610461081A CN 105926395 B CN105926395 B CN 105926395B
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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
- E01C3/04—Foundations produced by soil stabilisation
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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
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
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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
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to civil engineering groundwork process field, is related to a kind of road structure and construction method for eliminating newly-built roadbed consolidation settlement, wherein, the road structure includes GSZ, heating wire, external power source, tensiometer and humidity sensor；GSZ is tubular structure；Heating wire is placed in inside GSZ；Heating wire and tensiometer are connected with humidity sensor respectively；The display dial of soil moisture value can be reflected by being provided with humidity sensor；Humidity sensor accesses external power source.The invention provides a kind of road structure and construction method for eliminating newly-built roadbed consolidation settlement for effectively improving subgrade strength and bearing capacity and powerful guarantee highway driving safety.
Description
Technical field
The invention belongs to civil engineering groundwork process field, is related to a kind of road structure and the construction based on the road structure
Method, more particularly to a kind of road structure and construction method for eliminating newly-built roadbed consolidation settlement.
Background technology
Highway transportation industry fast development in recent years, especially in central and west regions, newly-built substantial amounts of loess highway,
Local economic development is greatly driven.Yet with the significant structural and strong water sensitivity of newly-built loess and roadbed so that
During building and build terminate after there are many problems, such as roadbed consolidation settlement, secondary consolidation settlement, differential settlement, road
Base cracking (transverse crack and longitudinal crack) etc., seriously constrain the security and comfortableness of road travel.
Handle at present the technology of newly-built roadbed consolidation settlement mainly have pile foundation reinforcement, change fill out, slip casting etc., wherein pile foundation reinforcement
Technology is primarily adapted for use in the public affairs that disposal roadbed moisture content is integrally bigger than normal, subgrade defect regional extent is larger, road traffic amount is less
Road；Change the technology of filling out be primarily adapted for use in disposal roadbed it is local overall be immersed in water, moisture content close to saturation, can not meet that roadbed carries
The highway of power requirement；Slurry injection technique is primarily adapted for use in disposal roadbed part small range and the diseases such as soil body loosening, cavity, leakiness occurs
Harmful highway.Above-mentioned subgrade strengthening technology consolidation effect is good, and use is wide.But it is seen that, above-mentioned technology be
Roadbed is disposed after there is disease, and considerable influence is all caused to existing roadbed and road surface normal traffic, and over time
The treated region of passage and untreated region junction be likely to occur secondary disaster, cause major economic loss.
Therefore, it is particularly necessary to seek a kind of technology that can just solve newly-built roadbed Common Diseases in process of construction.
The content of the invention
In order to solve above-mentioned technical problem present in background technology, it is strong roadbed can be effectively improved the invention provides one kind
The road structure and the construction that eliminate newly-built roadbed consolidation settlement of degree and bearing capacity and powerful guarantee highway driving safety
Method.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of road structure for eliminating newly-built roadbed consolidation settlement, including GSZ, it is characterised in that：It is described to disappear
Except the road structure of newly-built roadbed consolidation settlement also includes heating wire, external power source, tensiometer and humidity sensor；Institute
It is tubular structure to state GSZ；The heating wire is placed in inside GSZ；Heating wire and the tensiometer difference
It is connected with humidity sensor；The display dial of soil moisture value can be reflected by being provided with the humidity sensor；The humidity
Sensor accesses external power source.
Preferably, heating wire of the present invention is by the way of annular is laid, laterally lays and/or longitudinally lay
It is placed in inside GSZ.
Preferably, the outer wrap of heating wire of the present invention has heat-conducting layer.
Preferably, GSZ of the present invention is one or more layers.
Preferably, when GSZ of the present invention is multilayer, the spacing between adjacent two layers is not more than 2m.
Preferably, the internal diameter of GSZ of the present invention is 2-3cm.
Preferably, tensiometer of the present invention accesses humidity sensor by hygrometer export line；It is described
Heating wire accesses humidity sensor by heating wire export line.
Preferably, external power source of the present invention is battery.
A kind of construction method based on the road structure that can eliminate newly-built roadbed consolidation settlement as described above, its feature exist
In：It the described method comprises the following steps：
1) leveling processing is carried out to newly-built roadbed place, the filler in every layer of roadbed is 35~40cm, and thickness is after densification
25cm±3cm；
2) core boring sampling in every layer of roadbed, the physical mechanics test of the soil body is carried out, tests the soil body under different water cut
Mechanics index of physics, it is determined to meet the soil moisture content value under very heavy traffic effect and the effect of subgrade soil weight stress,
That is subgrade soil humidity lower and upper limit；
3) the embedded number of plies of GSZ and tensiometer is determined according to roadbed uniformity when roadbed successively fills, its
Middle tensiometer hygrometer export line when embedded is led at roadbed toe by digging ditch groove in this layer of road bed, soil
One layer is filled with the tiny rubble of different-grain diameter is very thin after the completion of work grid making, using firm grating as standard, and geotechnological lattice
The heating wire export line of heating wire and the hygrometer export line of tensiometer are placed at the toe of the same side in grid；
4) establish base station being placed with the toe of heating wire export line and hygrometer export line, installation humidity sensor with
And external power source, heating wire export line and hygrometer export line are accessed into humidity sensor；Humidity sensor accesses external power source；
5) repeat step 3) and step 4) GSZ and tensiometer are embedded in equivalent layer position, until roadbed fills out
Build completion；
6) subgrade soil humidity bound is set, opens the controlling switch of heating wire, is heated to subgrade soil, in the soil body
Moisture gradually volatilizees, and is slowly discharged from metalling, until reaching subgrade soil humidity lower limit, closes the controlling switch of heating wire,
Now the intensity of roadbed has fully met operation roadbed intensity requirement.
It is an advantage of the invention that：
The invention provides a kind of road structure and construction method for eliminating newly-built roadbed consolidation settlement, the wherein roadbed
Structure includes GSZ, heating wire, external power source, tensiometer and humidity sensor；GSZ is tubular structure；
Heating wire is placed in inside GSZ；Heating wire and tensiometer are connected with humidity sensor respectively；On humidity sensor
The display dial of soil moisture value can be reflected by being provided with；Humidity sensor accesses external power source.The present invention utilizes GSZ
With the combining structure of heating wire, its bearing capacity is more single, and GSZ is bigger, and the soil body can be effectively increased after being applied in combination
Bearing capacity；Meanwhile using the electric-heating-wire-heating soil body in grid, soil moisture content is effectively reduced, roadbed is kept a kind of reason
The drying regime thought；Furthermore through channel can be formed using the macadam overlay of different gradation during making GSZ of the present invention,
Discharge for vapor in the soil body is provided convenience；In addition, the solar panels heat supply process that the present invention recommends, efficiently solves road
Base disease disposes the problem of field energy resource supply for a long time.This road structure provided by the present invention has fully been used for reference in life
" paving blanket technology ", has the advantages that energy-conserving and environment-protective, green low consumption.It is to aim at prevention that the system, which eliminates subgrade defect, in disease
Evil allows for newly-built subgrade soil before occurring and has reached a high intensity, the state of high-bearing capacity, has also effectively discharged roadbed disease
One of harmful arch-criminal-water, it ensure that roadbed can be chronically at the state of safety and stability in terms of two, extending roadbed makes
With the life-span, the road-ability of highway is improved, improves the travel safety of highway.The present invention is spread for existing loess subgrade
The problems such as rear consolidation time is long, consolidation settlement is big is built, passes through " paving blanket " principle key position " lid " during roadbed filling
Layer " blanket ", to reach the purpose for eliminating roadbed consolidation settlement, improving roadbed resistance to overturning.
Brief description of the drawings
Fig. 1 is the structural representation of the road structure provided by the present invention for eliminating newly-built roadbed consolidation settlement；
Fig. 2 is the first laying scheme schematic diagram of grid heating wire of the present invention；
Fig. 3 is second of laying scheme schematic diagram of grid heating wire of the present invention；
Fig. 4 is the third laying scheme schematic diagram of grid heating wire of the present invention；
Wherein：
1- GSZs；2- heating wire；3- heating wire plugs；4- external power sources；7- tensiometers；8- grooves；9- is wet
Degree meter export line；10- heating wire export lines；11- display dials；12- warning lamps；13- humidity value settings buttons.
Embodiment
The structure and its construction method of the present invention are done further specifically with specific embodiment below in conjunction with the accompanying drawings
It is bright：
Referring to Fig. 1, the invention provides a kind of road structure for eliminating newly-built roadbed consolidation settlement, including GSZ
1, can eliminate the road structure of newly-built roadbed consolidation settlement also includes heating wire 2, external power source 4, tensiometer 7 and humidity
Sensor；GSZ 1 is tubular structure；Heating wire 2 is placed in inside GSZ 1；Heating wire 2 and tensiometer 7 divide
It is not connected with humidity sensor；Warning lamp 12, humidity value settings button 13, emergent inspection button 14 are provided with humidity sensor
And can reflect soil moisture value display dial 11,；Humidity sensor accesses external power source 4.Tensiometer 7 is by soil
Humidity value is reflected into humidity value display dial 11, is advantageous to adjust subgrade soil humidity in time.
Referring to Fig. 2, Fig. 3 and Fig. 4, heating wire 2 is put by the way of annular is laid, laterally lays and/or longitudinally lay
Inside GSZ 1, its caused heat energy of different laying forms is different, specifically can be depending on roadbed situation.
The outer wrap of heating wire 2 has heat-conducting layer, and the preferably good material of high temperature resistant, thermal conductivity is made.
GSZ 1 is one or more layers；When GSZ 1 is multilayer, the spacing between adjacent two layers is not more than 2m.Soil
The internal diameter of work grid 1 is 2-3cm.
Tensiometer 7 accesses humidity sensor by hygrometer export line 9；Heating wire 2 passes through heating wire export line 10
Access humidity sensor.Heating wire plug 3 is directly accessed external power source 4 or access heating wire export line 10.
External power source 4 is battery, can be supplied by solar panels or base station cable line.
A kind of construction method based on the road structure that can eliminate newly-built roadbed consolidation settlement as previously described, this method bag
Include following steps：
1) leveling processing is carried out to newly-built roadbed place, the filler in every layer of roadbed is 35~40cm, preferably 40cm, densification
Thickness is 25cm ± 3cm afterwards；
2) core boring sampling in every layer of roadbed, the physical mechanics test of the soil body is carried out, tests the soil body under different water cut
Mechanics index of physics, it is determined to meet the soil moisture content value under very heavy traffic effect and the effect of subgrade soil weight stress,
That is subgrade soil humidity lower and upper limit；Determine that energy subgrade soil humidity lower and upper limit are respectively 4% He in the present embodiment
12%；
3) the embedded number of plies of GSZ 1 and tensiometer 7 is determined according to roadbed uniformity when roadbed successively fills,
The wherein hygrometer export line 9 when embedded of tensiometer 7 leads to roadbed toe by digging ditch groove 8 in this layer of road bed
Place, one layer is filled with the tiny rubble of different-grain diameter is very thin after the completion of the making of GSZ 1, using firm grating as standard, and
The heating wire export line 10 of heating wire 2 is placed on same side slope with the hygrometer export line 9 of tensiometer 7 in GSZ 1
At pin；
4) base station is established being placed with the toe of heating wire export line 10 and hygrometer export line 9, humidity sensor is installed
Device and external power source 4, heating wire export line 10 and hygrometer export line 9 are accessed into humidity sensor；Humidity sensor accesses
External power source 4；
5) repeat step 3) and step 4) GSZ 1 and tensiometer 7 are embedded in equivalent layer position, until roadbed
Fill completion；
6) subgrade soil humidity bound is set, opens the controlling switch of heating wire 2, is heated to subgrade soil, in the soil body
Moisture gradually volatilize, slowly discharged from metalling, until reaching subgrade soil humidity lower limit, the control for closing heating wire 2 is opened
Close, now the intensity of roadbed has fully met operation roadbed intensity requirement, essentially eliminates the consolidation settlement of newly-built roadbed, solves
The problem of roadbed consolidation settlement harm is big.
Claims (9)
1. a kind of road structure for eliminating newly-built roadbed consolidation settlement, including GSZ（1）, it is characterised in that：It is described can
Eliminating the road structure of newly-built roadbed consolidation settlement also includes heating wire（2）, external power source（4）, tensiometer（7）It is and wet
Spend sensor；The GSZ（1）It is tubular structure；The heating wire（2）It is placed in GSZ（1）It is internal；The electric heating
Silk（2）And tensiometer（7）It is connected respectively with humidity sensor；Soil can be reflected by being provided with the humidity sensor
The display dial of humidity value（11）；The humidity sensor accesses external power source（4）.
2. the road structure according to claim 1 for eliminating newly-built roadbed consolidation settlement, it is characterised in that：The electric heating
Silk（2）GSZ is placed in by the way of annular is laid, laterally lays and/or longitudinally lay（1）It is internal.
3. the road structure according to claim 2 for eliminating newly-built roadbed consolidation settlement, it is characterised in that：The electric heating
Silk（2）Outer wrap have heat-conducting layer.
4. the road structure for eliminating newly-built roadbed consolidation settlement according to claim 1 or 2 or 3, it is characterised in that：Institute
State GSZ（1）It is one or more layers.
5. the road structure according to claim 4 for eliminating newly-built roadbed consolidation settlement, it is characterised in that：The geotechnique
Grid（1）When being multilayer, the spacing between adjacent two layers is not more than 2m.
6. the road structure according to claim 5 for eliminating newly-built roadbed consolidation settlement, it is characterised in that：The geotechnique
Grid（1）Internal diameter be 2-3cm.
7. the road structure according to claim 6 for eliminating newly-built roadbed consolidation settlement, it is characterised in that：The soil
Hygrometer（7）Pass through hygrometer export line（9）Access humidity sensor；The heating wire（2）Pass through heating wire export line（10）
Access humidity sensor.
8. the road structure according to claim 7 for eliminating newly-built roadbed consolidation settlement, it is characterised in that：The outside
Power supply（4）It is battery.
9. a kind of construction method based on the road structure that can eliminate newly-built roadbed consolidation settlement as claimed in claim 8, its
It is characterised by：It the described method comprises the following steps：
1）Carry out leveling processing to newly-built roadbed place, the filler in every layer of roadbed is 35~40cm, and thickness is 25cm after densification
±3cm；
2）The core boring sampling in every layer of roadbed, the physical mechanics test of the soil body is carried out, test the physics of the soil body under different water cut
Mechanical index, it is determined to meet the soil moisture content value under very heavy traffic effect and the effect of subgrade soil weight stress, i.e. road
Base soil body humidity lower and upper limit；
3）GSZ is determined according to roadbed uniformity when roadbed successively fills（1）And tensiometer（7）The embedded number of plies,
Wherein tensiometer（7）The hygrometer export line when embedded（9）By digging ditch groove in this layer of road bed（8）Lead to road
Ji Pojiaochu, GSZ（1）Fill one layer with the tiny rubble of different-grain diameter is very thin after the completion of making, using firm grating as
Standard, and GSZ（1）Middle heating wire（2）Heating wire export line（10）With tensiometer（7）Hygrometer export line
（9）It is placed at the toe of the same side；
4）It is being placed with heating wire export line（10）And hygrometer export line（9）Toe at establish base station, humidity sensor is installed
Device and external power source（4）, by heating wire export line（10）With hygrometer export line（9）Access humidity sensor；Humidity sensor
Device accesses external power source（4）；
5）Repeat step 3）And step 4）By GSZ（1）And tensiometer（7）Equivalent layer position is embedded in, until roadbed
Fill completion；
6）Subgrade soil humidity bound is set, opens heating wire（2）Controlling switch, subgrade soil heating is given, in the soil body
Moisture gradually volatilizees, and is slowly discharged from metalling, until reaching subgrade soil humidity lower limit, closes heating wire（2）Control open
Close, now the intensity of roadbed has fully met operation roadbed intensity requirement.
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| CN201610461081.4A CN105926395B (en) | 2016-06-22 | 2016-06-22 | A kind of road structure and construction method for eliminating newly-built roadbed consolidation settlement |
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| CN201610461081.4A CN105926395B (en) | 2016-06-22 | 2016-06-22 | A kind of road structure and construction method for eliminating newly-built roadbed consolidation settlement |
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| CN105926395B true CN105926395B (en) | 2018-01-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| BE1025282B1 (en) * | 2017-06-02 | 2019-01-11 | Cnh Industrial Belgium Nv | Carrying capacity of the ground |
| CN109577122A (en) * | 2018-12-07 | 2019-04-05 | 哈尔滨工业大学 | A kind of vertical drainage road structure based on electro-osmosis method |
| CN110983888A (en) * | 2019-11-04 | 2020-04-10 | 中国科学院武汉岩土力学研究所 | Construction method for reinforcing soft rock roadbed by applying geocell and reinforcing effect testing method thereof |
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| JP2003239276A (en) * | 2003-01-23 | 2003-08-27 | Dia Consultant:Kk | Construction method for road |
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