CN101602939A - Chemical grouting material for surface pre-grouting - Google Patents
Chemical grouting material for surface pre-grouting Download PDFInfo
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- CN101602939A CN101602939A CNA2009100896418A CN200910089641A CN101602939A CN 101602939 A CN101602939 A CN 101602939A CN A2009100896418 A CNA2009100896418 A CN A2009100896418A CN 200910089641 A CN200910089641 A CN 200910089641A CN 101602939 A CN101602939 A CN 101602939A
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- formaldehyde
- elimination agent
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Abstract
The invention discloses a kind of chemical grouting material for surface pre-grouting.It is formulated according to 1: 1 volume ratio by first liquid and second liquid that the chemical pulp material is annotated on this ground in advance, first liquid by solid content be 40～50% urea-formaldehyde resin, toughner NN '-methylene-bisacrylamide, and the formaldehyde elimination agent acrylamide form, toughner and formaldehyde elimination agent are joined in the urea-formaldehyde resin, toughner and formaldehyde elimination agent total concn are 120g～180g/L, and the concentration ratio of toughner and formaldehyde elimination agent is 1: 19; Second liquid is made up of toughener ammonium persulphate, oxalic acid and aqueous solvent, and the concentration of oxalic acid is 6g～12g/L, and the concentration of toughener is 10g～16g/L.Terrestrial operation safety of the present invention, the slight crack water exclusion of stratum is effective.
Description
Technical field:
The present invention relates to a kind of chemical slip casting material used in the field, colliery, especially a kind of chemical grouting material for surface pre-grouting.
Background technology:
In the pit shaft slip casting process, at some special formation,, often can't permeate because of cranny development, the abundant means of particulate material of the water yield as tiny crack, the stratum in porosity crack, weak tomography etc., occur a large amount of water bursts when causing tunneling, increase the [underground expense and have a strong impact on construction speed.When passing the quartzose sandstone stratum of tiny crack as Huainan Xin Ji Liu Zhuan coal mine shaft lining pit shaft slip casting, water burst in various degree all appears in major and minor, three pit shafts of wind, through secondary grouting just be able to by; When tafelberg, Henan Liu Kuang northing returnairshaft vertical passes through the thick Liu family ditch sandstone of 50m, because of the porosity stratum, though annotate clay cement grout 130m in advance through every meter wellbore surface
3, visit the water hole water outlet during driving still up to 80～90m
3/ h; When Shandong Luneng Guo collects coal mine shaft lining and passes a weak minor fault, through working face slip casting repeatedly just be able to by.Handle this type of water burst, at present general working face slip casting or the grouting behind shaft or drift lining of adopting wasted time and energy and uneconomical, but slip casting effect is all undesirable.
Along with the exploitation in coalfield, deep, increase and degree of depth increase on hole and minute fissure growth stratum.The Eleventh Five-Year Plan period, the whole nation has 5～6 pit shafts to build in the stratum of hole and minute fissure growth every year.The particulate material of conventional type and working face grouting process can not satisfy the needs that deep-well mineshaft is built, and the high chemical grout of good, the easy to operate and safe property of available property becomes a kind of trend.Present chemical slip casting material, short because of fed distance, the slurries gel is fast, only is suitable for working face slip casting or grouting behind shaft or drift lining.The general low toxicity of chemical slip casting material or little poison when constructing in the down-hole, because the space is limited, work the mischief to operator's health.The chemical slip casting material component is many, uses in the down-hole and exists complex procedures, operating environment is abominable, labour intensity is big and processing safety is low etc. outstanding problem.
Summary of the invention:
The objective of the invention is to overcome the deficiency of down-hole slurry injection technique, a kind of terrestrial operation safety is provided, chemical grout is annotated on the effective ground of slight crack water exclusion of stratum in advance.
The technical solution adopted in the present invention is: it is formulated according to 1: 1 volume ratio by first liquid and second liquid that the chemical pulp material is annotated on this ground in advance, first liquid by solid content be 40～50% urea-formaldehyde resin, toughner NN '-methylene-bisacrylamide, and the formaldehyde elimination agent acrylamide form, toughner and formaldehyde elimination agent are joined in the urea-formaldehyde resin, toughner and formaldehyde elimination agent total concn are 120g～180g/L, and the concentration ratio of toughner and formaldehyde elimination agent is 1: 19; Second liquid is made up of toughener ammonium persulphate, oxalic acid and aqueous solvent, and the concentration of oxalic acid is 6g～12g/L, and the concentration of toughener is 10g～16g/L.
Above-mentioned oxalic acid is purity more than 90%, and second liquid pH value is less than 6.
The present invention has following beneficial effect: the chemical pulp material is annotated on ground of the present invention in advance, be applicable to that cranny development, the water yield are abundant but, be particularly suited for colliery newly-built pit shaft curtain waterproof, mine shaft grouting for water-blocking based on the special formation grouting for water-blocking of tiny crack and hole.This material is a solidifying agent with the slightly acidic oxalic acid solution, and urea-formaldehyde resin is solidified, and the slurries gel time is easy to regulate control, meets the pre-grouting from the surface construction requirement.The adding of an amount of property-modifying additive is carried out modification to crisp frangible, the impervious difference of urea-formaldehyde resin matter.This chemical grout is slightly acidic, and price is low, penetrating quality good, at the construction field (site) the ground easy handling.
Embodiment:
The invention will be further described below in conjunction with embodiment:
Embodiment one, under 25 ℃ of test conditionss, in solid content is 40% urea-formaldehyde resin solution, add toughner NN '-methylene-bisacrylamide 3g, formaldehyde elimination agent acrylamide 57g, mixing and stirring is 40% urea-formaldehyde resin solution constant volume 500ml with solid content, is mixed with the 500ml slurries; Get the oxalic acid 3g of purity 90%, toughener ammonium persulphate 5g adds in the entry respectively and stirs, and is mixed with 500ml solution.1: 1 by volume mixing and stirring of two kinds of slurries (liquid) can be obtained slurries of the present invention.According to the essential property and the testing method of " anchoring and slurry injection technique " injecting paste material and slurries, the viscosity that records slurries is 0.013Pas, and gel time is 49 minutes, and 28 days ultimate compression strength of slurries calculus body is 2.16MPa.
Embodiment two, under 25 ℃ of test conditionss, in solid content is 45% urea-formaldehyde resin, add toughner NN '-methylene-bisacrylamide 3.75g, formaldehyde elimination agent acrylamide 71.25g, mixing and stirring, with solid content is 45% urea-formaldehyde resin solution constant volume 500ml, is mixed with the 500ml slurries; Get the oxalic acid 4.5g of purity 90%, toughener ammonium persulphate 6.5g adds in the entry respectively and stirs, and is mixed with 500ml solution.Above-mentioned two kinds of slurries (liquid) mixing and stirring can be obtained slurries of the present invention.According to the essential property and the testing method of " anchoring and slurry injection technique " injecting paste material and slurries, the viscosity that records slurries is 0.014Pas, and gel time is 23 minutes, and 28 days ultimate compression strength of slurries calculus body is 2.78MPa.
Embodiment three, under 25 ℃ of test conditionss, in solid content is 50% urea-formaldehyde resin, add toughner NN '-methylene-bisacrylamide 4.5g, formaldehyde elimination agent acrylamide 85.5g, mixing and stirring is 50% urea-formaldehyde resin solution constant volume 500ml with solid content, is mixed with the 500ml slurries; Get the oxalic acid 6g of purity 90%, toughener ammonium persulphate 8g adds in the entry respectively and stirs, and is mixed with 500ml solution.Above-mentioned two kinds of slurries (liquid) mixing and stirring can be obtained slurries of the present invention.According to the essential property and the testing method of " anchoring and slurry injection technique " injecting paste material and slurries, the viscosity that records slurries is 0.015Pas, and gel time is 11 minutes, and 28 days ultimate compression strength of slurries calculus body is 3.25MPa.
The polymerization degree of urea-formaldehyde resin is 50～70 in the foregoing description, and upright new chemical company limited provides by Weifang, Shandong.
Above-mentioned experimental data shows, it is low that slurry viscosity is joined by institute, and the property annotated is good; The gel time of slurries is longer, is suitable for operating at pre-grouting from the surface; The intensity of slurries calculus body satisfies the grouting for water-blocking requirement.
Claims (2)
1, a kind of chemical grouting material for surface pre-grouting, it is formulated according to 1: 1 volume ratio by first liquid and second liquid that the chemical pulp material is annotated on this ground in advance, first liquid is that 40%～50% urea-formaldehyde resin, toughner NN '-methylene-bisacrylamide and formaldehyde elimination agent acrylamide are formed by solid content, toughner and formaldehyde elimination agent are joined in the urea-formaldehyde resin, toughner and formaldehyde elimination agent total concn are 120g～180g/L, and the concentration ratio of toughner and formaldehyde elimination agent is 1: 19; Second liquid is made up of toughener ammonium persulphate, oxalic acid and aqueous solvent, and the concentration of oxalic acid is 6g～12g/L, and the concentration of toughener is 10g～16g/L.
2, chemical grouting material for surface pre-grouting according to claim 1 is characterized in that: oxalic acid is purity more than 90%, and second liquid pH value is less than 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910089641 CN101602939B (en) | 2009-07-28 | 2009-07-28 | Chemical grouting material for surface pre-grouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910089641 CN101602939B (en) | 2009-07-28 | 2009-07-28 | Chemical grouting material for surface pre-grouting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101602939A true CN101602939A (en) | 2009-12-16 |
| CN101602939B CN101602939B (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910089641 Expired - Fee Related CN101602939B (en) | 2009-07-28 | 2009-07-28 | Chemical grouting material for surface pre-grouting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585787A (en) * | 2012-01-13 | 2012-07-18 | 李良川 | Efficient urea-formaldehyde resin plugging agent and application thereof |
| CN103214789A (en) * | 2013-04-17 | 2013-07-24 | 北京东方雨虹防水技术股份有限公司 | Urea formaldehyde filling material and preparation method thereof |
| RU2559997C2 (en) * | 2013-12-27 | 2015-08-20 | Тимергалей Кабирович Апасов | Backfilling composition for isolation of water-gas flows in oil injection wells and high temperature gas wells |
| CN112608632A (en) * | 2021-01-16 | 2021-04-06 | 石家庄七彩雨虹防水工程有限公司 | Slurry and preparation method and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114672A (en) * | 1994-07-05 | 1996-01-10 | 胜利石油管理局孤东采油厂 | Urea-formaldehyde resin solution sand-proof process formulation |
| CN101338186A (en) * | 2008-08-08 | 2009-01-07 | 胜利油田东方实业投资集团有限责任公司 | Composite fiber rapid solidification sand prevention agent |
-
2009
- 2009-07-28 CN CN 200910089641 patent/CN101602939B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585787A (en) * | 2012-01-13 | 2012-07-18 | 李良川 | Efficient urea-formaldehyde resin plugging agent and application thereof |
| CN103214789A (en) * | 2013-04-17 | 2013-07-24 | 北京东方雨虹防水技术股份有限公司 | Urea formaldehyde filling material and preparation method thereof |
| CN103214789B (en) * | 2013-04-17 | 2015-04-29 | 北京东方雨虹防水技术股份有限公司 | Urea formaldehyde filling material and preparation method thereof |
| RU2559997C2 (en) * | 2013-12-27 | 2015-08-20 | Тимергалей Кабирович Апасов | Backfilling composition for isolation of water-gas flows in oil injection wells and high temperature gas wells |
| CN112608632A (en) * | 2021-01-16 | 2021-04-06 | 石家庄七彩雨虹防水工程有限公司 | Slurry and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101602939B (en) | 2012-04-18 |
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