CN105926395A - Roadbed structure capable of eliminating consolidation settlement of newly-built roadbed and construction method of roadbed structure - Google Patents
Roadbed structure capable of eliminating consolidation settlement of newly-built roadbed and construction method of roadbed structure Download PDFInfo
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- CN105926395A CN105926395A CN201610461081.4A CN201610461081A CN105926395A CN 105926395 A CN105926395 A CN 105926395A CN 201610461081 A CN201610461081 A CN 201610461081A CN 105926395 A CN105926395 A CN 105926395A
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- roadbed
- heating wire
- gsz
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- humidity sensor
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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
-
- 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
-
- 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 the field of foundation treatment of civil engineering and relates to a roadbed structure capable of eliminating consolidation settlement of a newly-built roadbed and a construction method of the roadbed structure. The roadbed structure comprises a geogrid, electric heating wires, external power supplies, soil hygrometers and a humidity sensor, wherein the geogrid is of a tubular structure; the electric heating wires are arranged inside the geogrid; the electric heating wires and the soil hygrometers are separately connected with the humidity sensor; a display index dial which can be used for reflecting a soil humidity value is arranged on the humidity sensor; the humidity sensor is connected with the external power supplies. The roadbed structure capable of eliminating the consolidation settlement of the newly-built roadbed and the construction method of the roadbed structure, provided by the invention, have the advantages that the strength and load-bearing capacity of the roadbed can be effectively improved, and the traffic safety of roads is forcefully guaranteed.
Description
Technical field
The invention belongs to civil engineering groundwork process field, relate to a kind of road structure and based on this road structure
Construction method, particularly relates to a kind of road structure eliminating newly-built roadbed consolidation settlement and construction method.
Background technology
Highway transportation industry fast development in recent years, especially in central and west regions, newly-built substantial amounts of loess
Highway, has greatly driven local economic development.The most structural and strong yet with newly-built loess and roadbed
Water sensitivity so that in construction process and build terminate after a lot of problem occurs, such as roadbed consolidation settlement, secondary
Consolidation settlement, differential settlement, crevice of roadbed (transverse crack and longitudinal crack) etc., seriously constrain road
The safety of driving and comfortableness.
Process at present the technology of newly-built roadbed consolidation settlement mainly have pile foundation reinforcement, change fill out, slip casting etc., its king-pile
Base reinforcement technique is primarily adapted for use in disposal, and roadbed moisture content entirety is bigger than normal, subgrade defect regional extent is relatively big, road surface
The less highway of the volume of traffic；Change the technology of filling out be primarily adapted for use in disposal roadbed local entirety is immersed in water, moisture content connects
The most saturated, cannot meet subgrade rating require highway；It is little that slurry injection technique is primarily adapted for use in disposal roadbed local
Scope occur the soil body loosen, cavity, the highway of the disease such as leakiness.Above-mentioned subgrade strengthening technology consolidation effect is good
Good, use wide.But it is seen that, above-mentioned technology is all to be disposed after disease occurs in roadbed, right
Existing roadbed and road surface normal traffic all cause considerable influence, and the region As time goes on processed
It is likely to occur secondary disaster with junction, untreated region, causes each big economic loss.
Therefore, seek a kind of technology that can just solve newly-built roadbed Common Diseases in process of construction particularly must
Want.
Summary of the invention
In order to solve above-mentioned technical problem present in background technology, the invention provides one and can be effectively improved road
Rheobase and bearing capacity and the powerful guarantee road eliminating newly-built roadbed consolidation settlement of highway driving safety
Based structures and construction method.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of road structure eliminating newly-built roadbed consolidation settlement, including GSZ, it is characterised in that: institute
State can eliminate the road structure of newly-built roadbed consolidation settlement also include heating wire, external power source, tensiometer with
And humidity sensor；Described GSZ is tubular structure；Described heating wire is placed in inside GSZ；Described
Heating wire and tensiometer are connected with humidity sensor respectively；It is provided with anti-on described humidity sensor
Reflect the display dial of soil moisture value；Described humidity sensor accesses external power source.
As preferably, heating wire of the present invention uses annular to lay, laterally lays and/or longitudinally lay
Mode be placed in inside GSZ.
As preferably, the outer wrap of heating wire of the present invention has heat-conducting layer.
As preferably, GSZ of the present invention is one or more layers.
As preferably, when GSZ of the present invention is multilamellar, the spacing between adjacent two layers is not more than
2m。
As preferably, the internal diameter of GSZ of the present invention is 2-3cm.
As preferably, tensiometer of the present invention is derived line by drimeter and is accessed humidity sensor；
Described heating wire is derived line by heating wire and is accessed humidity sensor.
As preferably, external power source of the present invention is accumulator.
A kind of construction method based on the road structure that can eliminate newly-built roadbed consolidation settlement as above, it is special
Levy and be: said method comprising the steps of:
1) newly-built roadbed place being carried out leveling process, the filler in every layer of roadbed is 35～40cm, after densification
Thickness is 25cm ± 3cm；
2) core boring sampling in every layer of roadbed, carries out the physical mechanics test of the soil body, under test different water cut
The mechanics index of physics of the soil body, is determined to meet under very heavy traffic effect and subgrade soil weight stress effect
Soil moisture content value, i.e. subgrade soil humidity lower limit and the upper limit；
3) layer is buried when roadbed successively fills underground according to what roadbed uniformity determined GSZ and tensiometer
Number, wherein tensiometer drimeter derivation line when burying underground leads to by digging ditch groove at this layer of road bed
At roadbed toe, GSZ making fills one layer, just to cover with the tiny rubble of different-grain diameter is very thin after completing
Geiger grid are that the heating wire derivation line of heating wire in standard, and GSZ is derived with the drimeter of tensiometer
Line is placed at the toe of the same side；
4) at the toe being placed with heating wire derivation line and drimeter derivation line, set up base station, humidity is installed and passes
Sensor and external power source, derive line by heating wire and drimeter is derived line and accessed humidity sensor；Humidity sensor
Device accesses external power source；
5) step 3 is repeated) and step 4) GSZ and tensiometer are embedded in equivalent layer position, directly
Complete to roadbed filling；
6) subgrade soil humidity bound is set, opens the control switch of heating wire, heat to subgrade soil,
Moisture in the soil body gradually volatilizees, and slowly discharges from metalling, until it reaches subgrade soil humidity lower limit, closes
The control switch of heating wire, now the intensity of roadbed has fully met operation roadbed requirement of strength.
The invention have the advantage that
The invention provides a kind of road structure eliminating newly-built roadbed consolidation settlement and construction method, wherein should
Road structure includes GSZ, heating wire, external power source, tensiometer and humidity sensor；Geotechnique
Grid is tubular structure；Heating wire is placed in inside GSZ；Heating wire and tensiometer respectively with humidity
Sensor is connected；It is provided with reflecting the display dial of soil moisture value on humidity sensor；Humidity sensor
Access external power source.The present invention utilizes the combinative structure of GSZ and heating wire, its bearing capacity relatively individually soil
Work grid is bigger, can be effectively increased the bearing capacity of the soil body after being applied in combination；Meanwhile, the electric heating in grid is utilized
The silk heating soil body, effectively reduces soil moisture content, makes roadbed keep a kind of preferably drying regime；Furthermore,
Use the macadam overlay of different gradation during making GSZ of the present invention, through channel can be formed, for water in the soil body
The discharge of steam is provided convenience；It addition, the solar panels heat supply process that the present invention recommends, efficiently solve road
Base disease disposes a difficult problem for field energy resource supply for a long time.This road structure provided by the present invention is fully used for reference
" paving blanket technology " in life, has the advantage such as energy-conserving and environment-protective, green low consumption.It is sick that this system eliminates roadbed
Evil is to put prevention first, and allows for newly-built subgrade soil and reached high intensity, a high-mechanic before disease occurs
One of state of power, the most effectively arch-criminal having discharged subgrade defect-water, ensure that roadbed energy in terms of two
Enough it is chronically at the state of safety and stability, extends roadbed service life, improve the road-ability of highway,
Improve the travel safety of highway.After the present invention is directed to existing loess subgrade making, consolidation time length, consolidation are sunk
The problems such as fall is big, " cover " layer " blanket " by " paving blanket " principle key position during roadbed filling,
To reach to eliminate roadbed consolidation settlement, the purpose of raising roadbed stability in the large.
Accompanying drawing explanation
Fig. 1 is the structural representation of the road structure eliminating newly-built roadbed consolidation settlement provided by the present invention；
Fig. 2 is the first laying scheme schematic diagram of grid heating wire of the present invention；
Fig. 3 is that grid heating wire the second of the present invention lays scheme schematic diagram；
Fig. 4 is the third laying scheme schematic diagram of grid heating wire of the present invention；
Wherein:
1-GSZ；2-heating wire；3-heating wire plug；4-external power source；7-tensiometer；8-
Groove；Line derived by 9-drimeter；Line derived by 10-heating wire；11-display dial；12-warning lamp；13-humidity
Value settings button.
Detailed description of the invention
With specific embodiment, structure and the construction method thereof of the present invention are done the most below in conjunction with the accompanying drawings
Describe in detail bright:
See Fig. 1, the invention provides a kind of road structure eliminating newly-built roadbed consolidation settlement, including soil
Work grid 1, the road structure that can eliminate newly-built roadbed consolidation settlement also includes heating wire 2, external power source 4, soil
Earth drimeter 7 and humidity sensor；GSZ 1 is tubular structure；It is internal that heating wire 2 is placed in GSZ 1；
Heating wire 2 and tensiometer 7 are connected with humidity sensor respectively；Warning lamp it is provided with on humidity sensor
12, humidity value settings button 13, emergent inspection button 14 and the display dial of soil moisture value can be reflected
11、；Humidity sensor accesses external power source 4.Soil moisture value is reflected into humidity value and shows by tensiometer 7
Dial plate 11, is conducive to adjusting in time subgrade soil humidity.
Seeing Fig. 2, Fig. 3 and Fig. 4, heating wire 2 uses annular laying, horizontal laying and/or longitudinal laying
It is internal that mode is placed in GSZ 1, and its heat energy produced of different laying forms is different, specifically can be according to roadbed
Depending on situation.
The outer wrap of heating wire 2 has heat-conducting layer, and material the most high temperature resistant, that heat conductivity is good is made.
GSZ 1 is one or more layers；When GSZ 1 is multilamellar, the spacing between adjacent two layers is not more than
2m.The internal diameter of GSZ 1 is 2-3cm.
Tensiometer 7 is derived line 9 by drimeter and is accessed humidity sensor；Heating wire 2 is derived by heating wire
Line 10 accesses humidity sensor.Heating wire plug 3 is directly accessed external power source 4 or accesses heating wire derivation line
10。
External power source 4 is accumulator, 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 foregoing, the party
Method comprises the following steps:
1) newly-built roadbed place being carried out leveling process, the filler in every layer of roadbed is 35～40cm, preferably 40cm,
After densification, thickness is 25cm ± 3cm；
2) core boring sampling in every layer of roadbed, carries out the physical mechanics test of the soil body, under test different water cut
The mechanics index of physics of the soil body, is determined to meet under very heavy traffic effect and subgrade soil weight stress effect
Soil moisture content value, i.e. subgrade soil humidity lower limit and the upper limit；The present embodiment determines under energy subgrade soil humidity
Limit and the upper limit are respectively 4% and 12%；
3) burying underground of GSZ 1 and tensiometer 7 is determined when roadbed successively fills according to roadbed uniformity
The number of plies, wherein tensiometer 7 drimeter when burying underground derives line 9 by digging ditch groove 8 at this layer of road bed
Leading at roadbed toe, GSZ 1 making fills one layer with the tiny rubble of different-grain diameter is very thin after completing,
With firm grating as standard, and in GSZ 1, the heating wire of heating wire 2 derives line 10 and tensiometer 7
Drimeter derive line 9 be placed at the toe of the same side；
4) at the toe being placed with heating wire derivation line 10 and drimeter derivation line 9, set up base station, humidity is installed
Sensor and external power source 4, derive line 10 by heating wire and drimeter is derived line 9 and accessed humidity sensor；Wet
Degree sensor accesses external power source 4；
5) step 3 is repeated) and step 4) GSZ 1 and tensiometer 7 are embedded in equivalent layer position,
Until roadbed filling completes；
6) subgrade soil humidity bound is set, opens the control switch of heating wire 2, heat to subgrade soil,
Moisture in the soil body gradually volatilizees, and slowly discharges from metalling, until it reaches subgrade soil humidity lower limit, closes
The control switch of heating wire 2, now the intensity of roadbed has fully met operation roadbed requirement of strength, substantially eliminates
The consolidation settlement of newly-built roadbed, solves the problem that roadbed consolidation settlement harm is big.
Claims (9)
1. the road structure that can eliminate newly-built roadbed consolidation settlement, including GSZ (1), it is characterised in that: the described road structure eliminating newly-built roadbed consolidation settlement also includes heating wire (2), external power source (4), tensiometer (7) and humidity sensor；Described GSZ (1) is tubular structure；It is internal that described heating wire (2) is placed in GSZ (1)；Described heating wire (2) and tensiometer (7) are connected with humidity sensor respectively；It is provided with reflecting the display dial (11) of soil moisture value on described humidity sensor；Described humidity sensor accesses external power source (4).
The road structure eliminating newly-built roadbed consolidation settlement the most according to claim 1, it is characterised in that: it is internal that described heating wire (2) uses annular to lay, the horizontal mode laid and/or longitudinally lay is placed in GSZ (1).
The road structure eliminating newly-built roadbed consolidation settlement the most according to claim 2, it is characterised in that: the outer wrap of described heating wire (2) has heat-conducting layer.
4. according to the road structure eliminating newly-built roadbed consolidation settlement described in claim 1 or 2 or 3, it is characterised in that: described GSZ (1) is one or more layers.
The road structure eliminating newly-built roadbed consolidation settlement the most according to claim 4, it is characterised in that: when described GSZ (1) is multilamellar, the spacing between adjacent two layers is not more than 2m.
The road structure eliminating newly-built roadbed consolidation settlement the most according to claim 5, it is characterised in that: the internal diameter of described GSZ (1) is 2-3cm.
The road structure eliminating newly-built roadbed consolidation settlement the most according to claim 6, it is characterised in that: described tensiometer (7) is derived line (9) by drimeter and is accessed humidity sensor；Described heating wire (2) is derived line (10) by heating wire and is accessed humidity sensor.
The road structure eliminating newly-built roadbed consolidation settlement the most according to claim 7, it is characterised in that: described external power source (4) is accumulator.
9. a construction method based on the road structure that can eliminate newly-built roadbed consolidation settlement as claimed in claim 8, it is characterised in that: said method comprising the steps of:
1) newly-built roadbed place being carried out leveling process, the filler in every layer of roadbed is 35～40cm, and after densification, thickness is 25cm ± 3cm；
2) core boring sampling in every layer of roadbed, carry out the physical mechanics test of the soil body, under test different water cut, the mechanics index of physics of the soil body, is determined to meet the soil moisture content value under very heavy traffic effect and subgrade soil weight stress effect, i.e. subgrade soil humidity lower limit and the upper limit；
3) number of plies is buried when roadbed successively fills underground according to what roadbed uniformity determined GSZ (1) and tensiometer (7), wherein tensiometer (7) drimeter derivation line (9) when burying underground leads at roadbed toe by digging ditch groove (8) at this layer of road bed, GSZ (1) making fills one layer with the tiny rubble of different-grain diameter is very thin after completing, with firm grating as standard, and heating wire derivation line (10) of heating wire (2) is placed at the toe of the same side with drimeter derivation line (9) of tensiometer (7) in GSZ (1)；
4) at the toe being placed with heating wire derivation line (10) and drimeter derivation line (9), set up base station, humidity sensor and external power source (4) are installed, heating wire is derived line (10) and drimeter is derived line (9) and accessed humidity sensor；Humidity sensor accesses external power source (4)；
5) repeat step 3) and GSZ (1) and tensiometer (7) are embedded in equivalent layer position, until roadbed filling completes by step 4)；
6) subgrade soil humidity bound is set, open the control switch of heating wire (2), heat to subgrade soil, moisture in the soil body gradually volatilizees, slowly discharge from metalling, until reaching subgrade soil humidity lower limit, closing the control switch of heating wire (2), now the intensity of roadbed has fully met operation roadbed requirement of strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| CN105926395A true CN105926395A (en) | 2016-09-07 |
| CN105926395B CN105926395B (en) | 2018-01-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110891412A (en) * | 2017-06-02 | 2020-03-17 | 凯斯纽荷兰(中国)管理有限公司 | Ground bearing capacity |
| 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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| CN205874869U (en) * | 2016-06-22 | 2017-01-11 | 山西省交通科学研究院 | Can eliminate roadbed structure of newly -built road bed consolidation settlement |
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| CN110891412A (en) * | 2017-06-02 | 2020-03-17 | 凯斯纽荷兰(中国)管理有限公司 | Ground bearing capacity |
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| 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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| Publication number | Publication date |
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| CN105926395B (en) | 2018-01-02 |
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