CN103993532A - Construction method of saponified slag foundation - Google Patents
Construction method of saponified slag foundation Download PDFInfo
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- CN103993532A CN103993532A CN201410239014.9A CN201410239014A CN103993532A CN 103993532 A CN103993532 A CN 103993532A CN 201410239014 A CN201410239014 A CN 201410239014A CN 103993532 A CN103993532 A CN 103993532A
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Abstract
The invention relates to a construction method of a saponified slag foundation. The construction method is simple and direct, and high in economic benefit. By adopting the construction method, the construction of the saponified slag foundation having the optimum performance is realized through control of simple coefficients of saponified slag and original soil, so that the saponified slag foundation which can be stable for a long term is formed.
Description
Technical field
The invention belongs to the construction technology of road foundation, be specifically related to a kind of construction method using saponification slag and native mixture as the saponification slag ground of foundation material.
Background technology
Saponification slag is that factory's calcium carbide is the byproduct of raw material production chemical product, and it generally discharges by water law, enters draining pond by flow regime, is plastic state after draining, digs out and deposits or be directly discharged into storage ash, large area natural-dehydration.The raw material chemical composition of producing calcium carbide, main component is Ca, with Ca (OH)
2and CaCO
3mixed form exists, and noxious material arsenic As in impurity, cyanogen CN content are lower than the pollution control criterion of GB12502-90 national regulation.Saponification slag and sulfide lime are basically identical in nature, all exist taking Cao, MgO as main component, and through field laboratory's repeated detection, content is between 40～58%.Saponification slag has good activity, and soil is had to good bonding capacity, can form intensity, and the intensity of the saponification dregs of doses can meet the index that the lime stabilized soil in the technical specification of stockyard requires.But because the plasticity of saponification slag is stronger, cannot realize comparatively stable mixed soil base, limit its increment and used.
Summary of the invention
The invention provides the construction method of the saponification slag ground that a kind of form of construction work is simple and direct, economic benefit is high, it is by the simple parameter control to saponification slag and original soil, realize the construction of optimum performance saponification slag ground and made, can form saponification slag ground steady in a long-term.
The technical solution adopted in the present invention is as follows:
A construction method for saponification slag ground, is characterized in that described construction method comprises:
Carry out degree of mixing experiment, saponification slag is mixed with ground original soil, and measure saponification slag and add volume hit solidity under at least two numerical value, according to the best mixed volume ratio that hits solidity and draw saponification slag of measuring;
Ground original soil is carried out to water content control, then mix than adding saponification dregs according to best mixed volume;
Mixed saponification slag and original soil are rolled, make its surfacing;
Saponification slag after maintenance rolls and the mixture humidity of original soil are carried out ground maintenance.
In detailed description of the invention, described construction method further comprises:
Measure saponification slag and add volume hit solidity under 5% and 8% two numerical value, and measure degree of compaction numerical value and the optimum humidity value of at least two precompressed thickness value.
In one embodiment, described construction method further comprises:
Ground original soil is carried out at least tedding of 1m thickness, control water content between 5-10%.
In one embodiment, described construction method further comprises:
Described rolling comprises that vibratory roller carries out full wheel dislocation and rolls, and then adopts three-roll road roller to carry out 1/2nd wrong wheels and rolls.
In one embodiment, described construction method further comprises:
Saponification slag after rolling and former earth mixtures are carried out to vertical excision the in end of length direction, then carry out end with the second width construction and again mix and roll.
In the time of construction, the humidity control of construction place original soil can or be carried out having tedded of interim roadbed by excavation gutter.The degree of depth general control tedding is at 1m, and the water content general control of original soil is below 10%.Due to the various influence factors of mixing between different rendzinases and different ground original soil, therefore need to carry out prior degree of mixing experiment, by the various parametric measurements of the mixture of different numerical value mixture accumulated amounts between saponification slag and ground original soil, the best mixed volume that can obtain saponification slag and ground original soil than and optimum humidity, and the numerical value such as optimum thickness.This numerical value can ensure the quality control of construction in later period effectively.
Beneficial effect of the present invention is, the construction method of this saponification slag ground is simple and direct, economic benefit is high, it,, by the simple parameter control to saponification slag and original soil, has been realized the construction of optimum performance saponification slag ground and has made, and can form saponification slag ground steady in a long-term.
Below in conjunction with detailed description of the invention, the present invention is further elaborated.
Detailed description of the invention
Adopt the saponification slag of water law discharge to carry out the construction of saponification slag ground, the humidity of this saponification slag is controlled within 10%.First carry out the sampling of saponification slag, carry out degree of mixing experiment, saponification slag is mixed with ground original soil, and measure saponification slag and add volume and hit solidity in 5% and 8% time, according to the best mixed volume ratio that hits solidity and draw saponification slag of measuring; Than the mixing of carrying out saponification slag and ground original soil, then carry out compactness test and the optimum humidity test after compacting by 30cm and two kinds of thickness of 50cm according to best mixed volume.
Excavate gutter in a side of ground to be onstructed and carry out draining, then treat construction ground and ted, ted thickness more than 1m, reduce original soil water content in 10%.
By test gained best mixed volume than the mixing of carrying out saponification slag and ground original soil, then the water content of controlling saponification slag and former earth mixtures optimum humidity ± when 1-2%, adopt the above vibratory roller of 18t and 15t-18t three-roll road roller to roll, while rolling, follow the principle of " weigh after fast after first slow, first light, from low to high ".While rolling, first roll with vibratory roller, roll to adopt and put on method of principal axes, full wheel dislocation, overlaps 15～20 centimetres, shakes and presses 6～8 times by this method, use the wrong wheel of three-roll road roller low speed 1/2 instead and roll 2～3 times, eliminate wheelmark, reach surfacing, bright and clean, edge is straight.
While carrying out next section of construction, take overlapping mode, when first paragraph rolls, should exceed sideline 50-100cm, in the time of the second width construction, this part is is again mixed and stirred and rolled.
Finally maintain, between defects liability period, be mainly keep its humidity, can adopt watering method controlled humidity, and between defects liability period close traffic.
Claims (5)
1. a construction method for saponification slag ground, is characterized in that described construction method comprises:
Carry out degree of mixing experiment, saponification slag is mixed with ground original soil, and measure saponification slag and add volume hit solidity under at least two numerical value, according to the best mixed volume ratio that hits solidity and draw saponification slag of measuring;
Ground original soil is carried out to water content control, then mix than adding saponification dregs according to best mixed volume;
Mixed saponification slag and original soil are rolled, make its surfacing;
Saponification slag after maintenance rolls and the mixture humidity of original soil are carried out ground maintenance.
2. the construction method of saponification slag ground according to claim 1, is characterized in that described construction method further comprises:
Measure saponification slag and add volume hit solidity under 5% and 8% two numerical value, and measure degree of compaction numerical value and the optimum humidity value of at least two precompressed thickness value.
3. the construction method of saponification slag ground according to claim 1, is characterized in that described construction method further comprises:
Ground original soil is carried out at least tedding of 1m thickness, control water content between 5-10%.
4. the construction method of saponification slag ground according to claim 1, is characterized in that described construction method further comprises:
Described rolling comprises that vibratory roller carries out full wheel dislocation and rolls, and then adopts three-roll road roller to carry out 1/2nd wrong wheels and rolls.
5. the construction method of saponification slag ground according to claim 1, is characterized in that described construction method further comprises:
Saponification slag after rolling and former earth mixtures are carried out to vertical excision the in end of length direction, then carry out end with the second width construction and again mix and roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239014.9A CN103993532A (en) | 2014-06-03 | 2014-06-03 | Construction method of saponified slag foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239014.9A CN103993532A (en) | 2014-06-03 | 2014-06-03 | Construction method of saponified slag foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103993532A true CN103993532A (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410239014.9A Pending CN103993532A (en) | 2014-06-03 | 2014-06-03 | Construction method of saponified slag foundation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317509A (en) * | 2018-11-15 | 2019-02-12 | 山鑫科陶科技（北京）股份有限公司 | Utilize the method and improvement soil of saponification slag repairing polluted soil |
| CN109322297A (en) * | 2018-11-15 | 2019-02-12 | 秦震 | Method and the modified soil body using the saponification slag modification soft base soil body |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503871A (en) * | 2009-03-19 | 2009-08-12 | 中铁十一局集团有限公司 | Dry-method construction method for drift-sand roadbed |
| CN103061226A (en) * | 2013-01-06 | 2013-04-24 | 中国建筑第六工程局有限公司 | Structure and construction method for temporarily reinforcing soft soil foundation |
| CN103614955A (en) * | 2013-11-25 | 2014-03-05 | 中国电力工程顾问集团西南电力设计院 | Treatment method for soft soil foundation construction road |
-
2014
- 2014-06-03 CN CN201410239014.9A patent/CN103993532A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101503871A (en) * | 2009-03-19 | 2009-08-12 | 中铁十一局集团有限公司 | Dry-method construction method for drift-sand roadbed |
| CN103061226A (en) * | 2013-01-06 | 2013-04-24 | 中国建筑第六工程局有限公司 | Structure and construction method for temporarily reinforcing soft soil foundation |
| CN103614955A (en) * | 2013-11-25 | 2014-03-05 | 中国电力工程顾问集团西南电力设计院 | Treatment method for soft soil foundation construction road |
Non-Patent Citations (1)
| Title |
|---|
| 马洪福: "皂化渣稳定土施工工艺", 《内蒙古公路与运输》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109317509A (en) * | 2018-11-15 | 2019-02-12 | 山鑫科陶科技（北京）股份有限公司 | Utilize the method and improvement soil of saponification slag repairing polluted soil |
| CN109322297A (en) * | 2018-11-15 | 2019-02-12 | 秦震 | Method and the modified soil body using the saponification slag modification soft base soil body |
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Application publication date: 20140820 |
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