CN102261064A - Method for strengthening mine tailing dam by using 'solidified stone' material - Google Patents
Method for strengthening mine tailing dam by using 'solidified stone' material Download PDFInfo
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- CN102261064A CN102261064A CN2010105253268A CN201010525326A CN102261064A CN 102261064 A CN102261064 A CN 102261064A CN 2010105253268 A CN2010105253268 A CN 2010105253268A CN 201010525326 A CN201010525326 A CN 201010525326A CN 102261064 A CN102261064 A CN 102261064A
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Abstract
The invention relates to the technical field of mine tailing dams, in particular to a method for strengthening a mine tailing dam by using a 'solidified stone' material. The method comprises the following steps of: mixing the 'solidified stone' and water to prepare slurry for later use; arranging drilling holes on the top of the dam body; drilling downwards to bedrock by using a mine down-the-hole drill; and injecting the slurring to fill the drilling holes by using a slurry pump and by a pressed permeation injection method. After the slurry is solidified, a 'solidified stone' strengthened structure using the drilling hole as a main body and scattering circumferentially to form a root system shape is formed; and according to design of hole arrangement, a plurality of holes are distributed in the dam body, so after the slurry is solidified, the whole strength of the dam body is greatly enhanced, cracks and holes caused by sedimentation, shake or other factors can be blocked, the effects of stabilizing the dam, blocking permeation and preventing leakage are achieved, and the aims of strengthening the tailing dam and preventing dam break disaster are fulfilled.
Description
Technical field
The present invention relates to mill tailings dam technical field, the method on particularly a kind of usefulness " stone with fixed attention " material reinforced mill tailings dam.
Background technology
Tailing dam is the main structure in mine tailing storehouse, form by initial dam and mine tailing fill dam, the reservoir area be mainly used in and store up a large amount of metal mines and carry out ore and sort CHARACTERISTICS OF TAILINGS SAND, water or other industrial residues that discharge the back.The mine tailing storehouse is made up of several parts such as initial dam, fill dam, gutter, first catch pit, follow-up catch pit, mine tailing deposition beaches, removes ponding in the storehouse with the Overflow drainage well array.Tailing dam is made up of initial dam and fill dam.Initial dam is generally piled up by rubble, and fill dam then is the increase along with mine tailing, piles up with the coarse grain mine tailing of deposition, and the structure of this dam body contains the thin interburden layer of large-area thick-layer, makes dam body have unstability.Flood is taking place, or when being subjected to artificial destruction, dam slope arc-shaped sliding surface can appear causes dam break.No matter be the initial dam that rubble is piled up, still with the fill dam of mine tailing formation, after date will more or less take place to produce accident potential such as crack, hole in rubble or deposit sedimentation and the accumulation body in the time of one.
The mine tailing storehouse is to keep the critical facility that the mine produces.Because the mine tailing storehouse is difficult to avoid residential block and densely populated area, also be important dangerous matter sources therefore.In case dam break, CHARACTERISTICS OF TAILINGS SAND and water are gushed out with the mud-rock flow form, endanger huge.Dam break in recent years all causes huge personnel and property loss.The sick danger of tailing dam is not enough with dam body local strength, antiseepage is improper relevant, and therefore, tailing dam antiseepage Gu Ba is badly in need of being resolved.All be to adopt cover geotextiles in the past, and kentledge stone, widened measure such as dam body, though certain effect is arranged, on-the-spot needs are more convenient, more effective, more scientific methods comes more thoroughly to solve.
Summary of the invention
The purpose of this invention is to provide the method on a kind of usefulness " stone with fixed attention " material reinforced mill tailings dam, ooze, prevent to cause disasters such as dam break for tailing dam Gu Ba is stifled.
The objective of the invention is to realize by following technical proposals:
The method on usefulness of the present invention " stone with fixed attention " material reinforced mill tailings dam is characterized in that comprising the steps:
1) it is standby with the composite slip of water " to coagulate stone ", and water is 1:0.3～0.5 with the volume ratio of " coagulating stone ",
2) arrange boring at the top platform of dam body, be drilled into basement rock downwards with the mine hidden hole drilling,
3) with slush pump pressurization infiltration injection method slip is injected and is full of boring, when slurries are carried and are full of boring, because the dynamic pressure when having slush pump to carry slurries is the hydrostatic pressure of slurries itself in addition, slip is then to the dam body slit infiltration that links to each other with the hole body inwall
4) after slip solidifies, form based on the boring body, and to around " coagulating stone " reinforcing structure of scattering root system shape because dam body is furnished with many such hole bodies, make dam body form the integral body that intensity greatly strengthens after slip solidifies.
Above-mentioned drill holes: the lateral separation of boring was 9～11m when single row of holes was arranged, double longitudinal separation is 9～11m, adjacent each gang drill hole is staggeredly arranged, the big-and-middle-sized dam of hidden hole drilling bore diameter generally adopts ∮ 90～∮ 150mm, boring is bored 200～400mm to basement rock after at the bottom of the dam again, to strengthen dam body intensity.
The slip pressurized delivered is to the body of holing with described " coagulating stone " to adopt slush pump, and the big-and-middle-sized dam of discharging opening pressure must remain on 0.10Mpa～0.21Mpa.
Medium-sized dam thickness generally can reach about 80～150 meters, about more than 150～200 meters of large-scale dam thickness, and small-sized dam thickness reaches about 50～80 meters, and the big-and-middle-sized dam that use in existing mine is in the majority.Dam crest has very wide packway, and the boring layout is very convenient.The big-and-middle-sized dam of hidden hole drilling bore diameter generally adopts ∮ 150mm, and small-sized dam generally adopts ∮ 90mm.
" coagulating stone " material that the present invention adopts is the novel gelled material product, the mass production of Peking blue money group.Experiment number a tree name shows, other cementitious material such as this " coagulating stone " material and cement are compared, and have lot of advantages:
(1) function admirable of " coagulate stone " concrete intensity, density, corrosion-resistant, freeze thawing resistance, aspect such as pollution-free.Glued stone concrete intensity is 38.5 MPas, and is higher by 28.2% than cement concrete strength under the same period condition;
(2) " coagulate stone " ability on fixed clay fine sand piece stone, freeze proof at low temperatures ability and be subjected to the ability of acid and alkali corrosion under particular surroundings generally exceeds with label cement more than 3 times;
(3) cost is lower than cement " to coagulate stone ", and good prospects for application is arranged.
Material property is good, nontoxic, harmless, non-corrosiveness, and quick solidifying speed is fast, and using method is simple, effective and rapid.
The invention has the beneficial effects as follows: can dust suppression can prevent the ore deposit damage again, low-cost, suitable wide, pollution-free, easy to use, can extensively promote the use of society, economic dispatch aspect remarkable benefit.
The specific embodiment
Below in conjunction with embodiment the specific embodiment of the present invention is described.
The method on usefulness of the present invention " stone with fixed attention " material reinforced mill tailings dam is characterized in that comprising the steps:
1) coagulate stone " standby with the composite slip of water, water is 1:0.3～0.5 with the volume ratio of " coagulating stone ",
2) arrange boring at the top platform of dam body, be drilled into basement rock downwards with the mine hidden hole drilling,
3) with slush pump pressurization infiltration injection method slip is injected and is full of boring.Slurries carry be full of boring in because the hydrostatic pressure of slurries in addition of the dynamic pressure when having slush pump to carry slurries itself, slip then permeates to the dam body slit that links to each other with the hole body inwall,
4) after slip solidifies, form based on the boring body, and to around " coagulating stone " reinforcing structure of scattering root system shape because dam body is furnished with many such hole bodies, make dam body form the integral body that intensity greatly strengthens after slip solidifies.
Described boring layout: the lateral separation of boring is 9～11m, longitudinal separation is 9～11m, and adjacent each gang drill hole is staggeredly arranged, and the big-and-middle-sized dam of hidden hole drilling bore diameter generally adopts ∮ 90～∮ 150mm, boring is bored 200～400mm down after at the bottom of the dam more earthward, to strengthen dam body intensity.
The slip pressurized delivered is to the body of holing with described " coagulating stone " to adopt slush pump, and the big-and-middle-sized dam of discharging opening pressure must remain on 0.10Mpa～0.21Mpa.
Embodiment 1
Thickness reaches 50～80 meters small-sized tailing dam, and the hidden hole drilling bore diameter adopts ∮ 90mm.It is 1atm that slush pump discharging opening pressure keeps 0.101325Mpa() more than.
Embodiment 2
Thickness reaches 80～150 meters medium-sized tailing dam, and the hidden hole drilling bore diameter generally adopts ∮ 150mm, and it is 2atm that slush pump discharging opening pressure keeps 0.20265Mpa() more than.
Embodiment 3
Thickness reaches 150～200 meters large-scale dam, and the hidden hole drilling bore diameter generally adopts ∮ 150mm, and it is 2atm that slush pump discharging opening pressure keeps 0.20265Mpa() more than.
Material property is good.Peking blue money group company produces in batches.Nontoxic, harmless, non-corrosiveness, quick solidifying speed is fast, and using method is simple, effective and rapid.
The invention has the beneficial effects as follows: solved the stifled safety problem of oozing Gu Ba of tailing dam low-cost, simplely, and be easy to promote, technology is perfect.Society, economic dispatch aspect remarkable benefit.
Claims (3)
1. the method with " coagulating stone " material reinforced mill tailings dam is characterized in that comprising the steps:
1) it is standby with the composite slip of water " to coagulate stone ", and water is 1:0.3～0.5 with the volume ratio of " coagulating stone ",
2) arrange boring at the top platform of dam body, be drilled into basement rock downwards with the mine hidden hole drilling,
3) with slush pump pressurization infiltration injection method slip is injected and is full of boring, slurries carry be full of boring in, slip then permeates to the dam body slit that links to each other with the hole body inwall,
4) after slip solidifies, form based on the boring body, and to around " coagulating stone " reinforcing structure of scattering root system shape, make dam body form the integral body that intensity greatly strengthens after slip solidifies.
2. the method on usefulness according to claim 1 " stone with fixed attention " material reinforced mill tailings dam, it is characterized in that described boring layout: the lateral separation of boring is 9～11m, longitudinal separation is 9～11m, adjacent each gang drill hole is staggeredly arranged, the hidden hole drilling bore diameter adopts ∮ 90～∮ 150mm, boring is bored 200～400mm down to basement rock after at the bottom of the dam again, to strengthen dam body intensity.
3. the method on usefulness according to claim 1 " stone with fixed attention " material reinforced mill tailings dam, the slip pressurized delivered is to the body of holing with described " coagulating stone " to it is characterized in that adopting slush pump, and the big-and-middle-sized dam of discharging opening pressure must remain on 0.10Mpa-0.21Mpa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105253268A CN102261064A (en) | 2010-10-30 | 2010-10-30 | Method for strengthening mine tailing dam by using 'solidified stone' material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105253268A CN102261064A (en) | 2010-10-30 | 2010-10-30 | Method for strengthening mine tailing dam by using 'solidified stone' material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129759A (en) * | 1995-02-21 | 1996-08-28 | 张华清 | Technology of high pressure jet pouring of badly weathered soft basement rocks |
| CN1250126A (en) * | 1998-10-05 | 2000-04-12 | 张耀伦 | Method of depositing fast solidifying material to eliminate piping and utilizing rotating spray to strength dykes |
| CN1415567A (en) * | 2002-12-24 | 2003-05-07 | 清华大学 | binary mixed coagulated stones and wet cement and method for production, deposit, transportation use and application |
| CN101255698A (en) * | 2008-01-23 | 2008-09-03 | 湖南省建筑工程集团总公司 | Drifting sand layer and gravel stratum water-moving double-liquid high pressure slip-casting water-blocking construction method |
-
2010
- 2010-10-30 CN CN2010105253268A patent/CN102261064A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1129759A (en) * | 1995-02-21 | 1996-08-28 | 张华清 | Technology of high pressure jet pouring of badly weathered soft basement rocks |
| CN1250126A (en) * | 1998-10-05 | 2000-04-12 | 张耀伦 | Method of depositing fast solidifying material to eliminate piping and utilizing rotating spray to strength dykes |
| CN1415567A (en) * | 2002-12-24 | 2003-05-07 | 清华大学 | binary mixed coagulated stones and wet cement and method for production, deposit, transportation use and application |
| CN101255698A (en) * | 2008-01-23 | 2008-09-03 | 湖南省建筑工程集团总公司 | Drifting sand layer and gravel stratum water-moving double-liquid high pressure slip-casting water-blocking construction method |
Non-Patent Citations (1)
| Title |
|---|
| 陈泉源等: "钢铁工业固体废弃物资源化途径", 《矿冶工程》 * |
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Application publication date: 20111130 |