CN112160221A - Method for hardening pavement of transportation road in mining area by using brine - Google Patents
Method for hardening pavement of transportation road in mining area by using brine Download PDFInfo
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- CN112160221A CN112160221A CN202010980064.8A CN202010980064A CN112160221A CN 112160221 A CN112160221 A CN 112160221A CN 202010980064 A CN202010980064 A CN 202010980064A CN 112160221 A CN112160221 A CN 112160221A
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- brine
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- crystallization
- surface layer
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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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- Road Paving Structures (AREA)
Abstract
The utility model provides a method for utilize brine to carry out mining area haulage road surface hardening, relate to road hardening technical field, after bedding the road bed course, again bedding the gradation gravel surface course that 10cm is thick, spray brine, make brine infiltration gravel surface course evaporation crystallization, water spray brine repeatedly, the thickness to the crystallization layer that forms reaches 4-6cm, the compaction, again bedding the gradation gravel surface course and spray brine, the compaction, final brine crystallization and gravel surface course form brine crystallization road surface course, detect the road surface compactness, after qualified, put into use. The invention has the beneficial effects that: the road hardened by the method can meet the requirements of transportation and use in mining areas, reduces pollution such as dust emission and the like, strengthens the 3-grade sandstone road surface of the mine, controls the strength and the damage period of the road surface, and reduces the road sprinkling and maintenance investment to the maximum extent during mining.
Description
Technical Field
The invention relates to the technical field of road hardening, in particular to a method for hardening a pavement of a transportation road in a mining area by using brine.
Background
In surface mining, the transportation roads are mainly used for carrying out the transportation function of the stripping materials and simultaneously meet the requirements of coal outward transportation and the like, and are usually arranged on a surface soil layer. During the transportation of stripped objects and coal, due to the lack of water in geographical environment and dry climatic conditions, the dust on the road surface is large, the environmental pollution is serious, the strict requirements of the country on the environment at present are not met, the transportation road needs to be correspondingly hardened, but the construction by adopting the conventional road surface hardening technology is not suitable, the engineering quantity and the cost for construction by adopting the conventional method are huge due to the severe environment, remote places and other reasons, and the production cost of enterprises is increased invisibly.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method for hardening the pavement of a transportation road in a mining area by using brine. The material is convenient to obtain, the manufacturing cost is low, the method is suitable for hardening treatment of the transportation road in the mining area, and the production cost of enterprises is saved.
The invention provides a method for hardening a pavement of a transportation road in a mining area by using brine, which comprises the following steps:
step 1: paving a roadbed cushion layer, namely paving 30-50cm of peripheral stone slag, sand, soil and the like, wherein the roadbed slope ratio is 1: 1.5;
step 2: paving a 10 cm-thick graded gravel surface layer, and paving the surface layer by using a road scraper;
and step 3: spraying brine to enable the brine to permeate into the gravel surface layer for evaporation and crystallization, bonding the brine crystal and the gravel surface layer together, repeatedly spraying brine until the thickness of the formed crystal layer reaches 4-6cm, and compacting;
and 4, step 4: paving a 10cm thick graded gravel surface layer again, and paving the layer by using a road scraper;
and 5: spraying brine again to enable the brine to permeate into the gravel surface layer for evaporation and crystallization, bonding the brine crystal and the gravel surface layer together, repeatedly spraying brine until the thickness of the formed crystallization layer reaches 4-6cm, and compacting; finally forming a brine crystallization pavement layer by brine crystallization and a gravel surface layer;
step 6: detecting the compactness of the pavement, and putting the pavement into use after the pavement is qualified; and if not, continuously spraying sand to brine to increase the hardness of the pavement until the detection is qualified.
The bittern is from chloride type salt lake, contains various chlorides such as sodium chloride, potassium chloride, and magnesium chloride, and has total solute concentration of 20-30%.
The middle of the pavement is higher than the two sides, and the gradient of the flowing water is 3 percent.
The thickness of the brine crystallization pavement layer is 30-35 cm.
The invention has the beneficial effects that:
the brine is crystallized, gravel and soil are bonded together, the hardness can meet the requirement of transportation and use in a mining area, pollution such as dust emission is reduced, the 3-grade gravel road surface of the mine is strengthened by the method, the strength and the damage period of the road surface are controlled, and the road sprinkling and maintenance investment are reduced to the maximum degree during mining.
Drawings
FIG. 1 is a process flow diagram of the present invention;
fig. 2 is a cross-sectional view of a road according to the present invention.
Detailed Description
Embodiment 1, the present invention provides a method for hardening a pavement of a transportation road in a mining area by using brine, comprising the following steps:
step 1: paving a roadbed cushion layer, namely paving 40cm of the roadbed cushion layer by using peripheral stone slag, sand, soil and the like, wherein the roadbed slope ratio is 1: 1.5;
step 2: paving a 10 cm-thick graded gravel surface layer, and paving the surface layer by using a road scraper;
and step 3: spraying brine to enable the brine to permeate into the gravel surface layer for evaporation and crystallization, bonding the brine crystal and the gravel surface layer together, repeatedly spraying brine until the thickness of the formed crystal layer reaches 4-6cm, and compacting;
and 4, step 4: paving a 10cm thick graded gravel surface layer again, and paving the layer by using a road scraper;
and 5: spraying brine again to enable the brine to permeate into the gravel surface layer for evaporation and crystallization, bonding the brine crystal and the gravel surface layer together, repeatedly spraying brine until the thickness of the formed crystallization layer reaches 4-6cm, and compacting; finally forming a brine crystallization pavement layer by brine crystallization and a gravel surface layer;
step 6: and (5) detecting the compactness of the pavement, and putting the pavement into use after the pavement is qualified.
The bittern is from chloride type salt lake, contains various chlorides such as sodium chloride, potassium chloride, and magnesium chloride, and has total solute concentration of 20-30%.
The middle of the pavement is higher than the two sides, and the gradient of flowing water is 3 percent;
the thickness of the brine crystallization pavement layer is 30-35 cm.
Claims (4)
1. A method for carrying out pavement hardening on a transportation road in a mining area by using brine is characterized by comprising the following steps: the method comprises the following steps:
step 1: paving a roadbed cushion layer, namely paving 30-50cm of peripheral stone slag, sand, soil and the like, wherein the roadbed slope ratio is 1: 1.5;
step 2: paving a 10 cm-thick graded gravel surface layer, and paving the surface layer by using a road scraper;
and step 3: spraying brine to enable the brine to permeate into the gravel surface layer for evaporation and crystallization, bonding the brine crystal and the gravel surface layer together, repeatedly spraying brine until the thickness of the formed crystal layer reaches 4-6cm, and compacting;
and 4, step 4: paving a 10cm thick graded gravel surface layer again, and paving the layer by using a road scraper;
and 5: spraying brine again to enable the brine to permeate into the gravel surface layer for evaporation and crystallization, bonding the brine crystal and the gravel surface layer together, repeatedly spraying brine until the thickness of the formed crystallization layer reaches 4-6cm, and compacting; finally forming a brine crystallization pavement layer by brine crystallization and a gravel surface layer;
step 6: and (5) detecting the compactness of the pavement, and putting the pavement into use after the pavement is qualified.
2. The method for hardening the pavement of a transportation road in a mining area by using brine according to claim 1, wherein the method comprises the following steps: the brine is from a chloride type salt lake and contains various chlorides, and the total solute concentration is 20-30%.
3. The method for hardening the pavement of a transportation road in a mining area by using brine according to claim 1, wherein the method comprises the following steps: the gradient of the running water on the road surface is 3%.
4. The method for hardening the pavement of a transportation road in a mining area by using brine according to claim 1, wherein the method comprises the following steps: the thickness of the brine crystallization pavement layer is 30-35 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980064.8A CN112160221A (en) | 2020-09-17 | 2020-09-17 | Method for hardening pavement of transportation road in mining area by using brine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010980064.8A CN112160221A (en) | 2020-09-17 | 2020-09-17 | Method for hardening pavement of transportation road in mining area by using brine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112160221A true CN112160221A (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010980064.8A Pending CN112160221A (en) | 2020-09-17 | 2020-09-17 | Method for hardening pavement of transportation road in mining area by using brine |
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| CN (1) | CN112160221A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101056806B1 (en) * | 2011-04-27 | 2011-08-12 | (주)로드윈 | Soft road paving method using nature wood chip |
| CN103628375A (en) * | 2012-08-24 | 2014-03-12 | 新疆交通建设（集团）有限责任公司 | Rock salt roadbed construction method |
| CN108677667A (en) * | 2018-03-26 | 2018-10-19 | 美尚生态景观股份有限公司 | A kind of method of constructing roadway based on biological enzyme soil-solidified-agent |
| CN109736175A (en) * | 2018-12-25 | 2019-05-10 | 青海盐湖工业股份有限公司 | A kind of factories and miness rock salt road and its construction method |
| CN111155403A (en) * | 2020-01-20 | 2020-05-15 | 芜湖海螺水泥有限公司 | Method for constructing surface mine road |
-
2020
- 2020-09-17 CN CN202010980064.8A patent/CN112160221A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101056806B1 (en) * | 2011-04-27 | 2011-08-12 | (주)로드윈 | Soft road paving method using nature wood chip |
| CN103628375A (en) * | 2012-08-24 | 2014-03-12 | 新疆交通建设（集团）有限责任公司 | Rock salt roadbed construction method |
| CN108677667A (en) * | 2018-03-26 | 2018-10-19 | 美尚生态景观股份有限公司 | A kind of method of constructing roadway based on biological enzyme soil-solidified-agent |
| CN109736175A (en) * | 2018-12-25 | 2019-05-10 | 青海盐湖工业股份有限公司 | A kind of factories and miness rock salt road and its construction method |
| CN111155403A (en) * | 2020-01-20 | 2020-05-15 | 芜湖海螺水泥有限公司 | Method for constructing surface mine road |
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Application publication date: 20210101 |
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| RJ01 | Rejection of invention patent application after publication |