CN109356584A - A kind of underground filling is dug up mine the construction method of cast-in-place bed course - Google Patents
A kind of underground filling is dug up mine the construction method of cast-in-place bed course Download PDFInfo
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- CN109356584A CN109356584A CN201811144867.9A CN201811144867A CN109356584A CN 109356584 A CN109356584 A CN 109356584A CN 201811144867 A CN201811144867 A CN 201811144867A CN 109356584 A CN109356584 A CN 109356584A
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- China
- Prior art keywords
- bed course
- cast
- coarse
- underground
- fine aggregate
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
Abstract
It digs up mine the construction method of cast-in-place bed course the present invention relates to a kind of underground filling, belongs to underground filling mining construction method.The stirring of underground concrete and top dressing equipment chamber are built by tunneling construction；Concrete stirring and top dressing equipment cave indoor location blender and delivery pump in underground, equipment along tunnel and courtyard set up pipeline after being installed；The coarse-fine aggregate mixture and cement that prepare in earth's surface, accelerator are transported to chamber with mine car；Cement, coarse-fine aggregate mixture, water and accelerator are poured into blender according to the proportion to be stirred, prepare pea gravel concreten, pea gravel concreten is pumped to through pipeline by stope using concrete pump, cast-in-place bed course is laid on waste fill layer, makes its intensity up to 3Mpa after maintenance.The present invention provides a kind of construction method of flexible and efficient, safe and reliable bed course for underground filling mining, creates advantage for the low poor safe and efficient mining of damage, improves stope mining operational security.
Description
Technical field
The present invention relates to a kind of underground filling mining construction methods.
Background technique
Construction is laid with the important link that bed course is underground filling mining technology, intensity, density and the construction effect of bed course
Rate directly influences the crucial mining technique economic indicator such as mining loss ratio, the rate of dilution, production capacity of mining field and mining cost.Mesh
Before, extra narrow vein scarps filling mining method generallys use the waste and old rubber mat work in dressing plant with middle thickness orebody Dry-placed fill mining is as thin as
For Slice stoping back production bed course.Using rubber mat as Slice stoping back production bed course, first is that the flatness and density of rubber mat are poor, it is high
Grade fragment ore and fine ore loss amount is big, ore dilution rate is high, and be not easy to realize mechanization ore removal, second is that flat field link
Barren rock flatness requirement is high, stope flat field large labor intensity, low efficiency.For a long time, there is no ten sub-arguments for underground filling mining
The bed course and construction method thought.
Summary of the invention
The present invention provides the construction method that a kind of underground filling digs up mine cast-in-place bed course, to solve using rubber mat as stope point
The flatness and density of existing rubber mat are poor when layer back production bed course, high-grade fragment ore and fine ore loss amount is big, ore is poor
Rate is high, and is not easy to realize mechanization ore removal, and high, the stope flat field labor intensity to the barren rock flatness requirement of flat field link
Greatly, the problem of low efficiency.
The technical solution adopted by the present invention is that, including the following steps:
(1) stirring of underground concrete and top dressing equipment chamber are built by tunneling construction；
(2) in the stirring of underground concrete and top dressing equipment cave indoor location blender and delivery pump, after equipment is installed
Pipeline is set up along tunnel and courtyard；
(3) the coarse-fine aggregate mixture and cement that prepare in earth's surface, accelerator are transported to chamber with mine car；
(4) cement, coarse-fine aggregate mixture, water and accelerator are poured into blender according to the proportion to be stirred, preparation is thin
Stone concrete, wherein the weight ratio of cement, coarse-fine aggregate mixture and water is 1:(6~8): (0.65~0.75), accelerator adds
Dosage is the 2%~3% of pea gravel concreten weight；
(5) pea gravel concreten is pumped to through pipeline by stope using concrete pump, cast-in-place pad is laid on waste fill layer
Layer makes its intensity up to 3Mpa, can meet the requirement for falling mine and ore machinery haulage after maintenance.
In step (2) of the present invention, the blender and delivery pump are that travelling mixer and mobile microlith are mixed
Solidifying soil pump, the pipeline are polyethylene pipe.
In step (3) of the present invention, coarse aggregate size 8mm~12mm in the coarse-fine aggregate mixture, fine aggregate
For river sand or tailings, the partial size of sand is 0.3mm~0.5mm, and the proportion of coarse-fine aggregate mixture is (1.5~2): 1.
In step (5) of the present invention, cast-in-place cushion thickness is 150mm~250mm.
The beneficial effects of the present invention are:
The construction method of cast-in-place bed course can substitute the construction method of traditional underground filling mining bed course, and easy construction is high
Effect, bed course intensity is high, density is good.This method solve the long-standing bed course of mining with stowing and construction difficult problem, ore dilutions
Rate and mining loss ratio reduce by 60% or more compared with rubber mat bed course respectively, effectively reduce high-grade fragment ore and fine ore loss,
Ore dilution is reduced, production capacity of mining field and mining economic benefit are improved.Blender and pumping in-situ depositing equipment are pacified in underground
Dress and conveniently moving, the construction of cast-in-place bed course are that the low poor damage fining exploitation of stope creates good technical conditions, cast-in-place pad
Layer has the function of support upper lower burrs country rock simultaneously, and the stress for effectively reducing high stress stope concentrates intensity and surrouding rock deformation speed
Rate improves stope mining operational security.
The present invention provides a kind of construction method of flexible and efficient, safe and reliable bed course for underground filling mining, is low poor
It damages safe and efficient mining and creates advantage, effectively improve the key technology economic indicator of underground filling mining.
Detailed description of the invention
Fig. 1 is that underground filling of the present invention is dug up mine the construction method schematic diagram of cast-in-place bed course；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
In figure: equipment chamber 1, blender 2, delivery pump 3, tunnel 4, courtyard 5, pipeline 6, waste fill layer 7, cast-in-place bed course
8, stope 9.
Specific embodiment
Embodiment 1
Include the following steps:
(1) stirring of underground concrete and top dressing equipment chamber 1 are built by tunneling construction；
(2) blender 2 and delivery pump 3 are installed in the stirring of underground concrete and top dressing equipment chamber 1, equipment installs
Pipeline 6 is set up along tunnel 4 and courtyard 5 at rear, the blender and delivery pump are that travelling mixer and mobile microlith are mixed
Solidifying soil pump, the pipeline are polyethylene pipe；
(3) the coarse-fine aggregate mixture and cement that prepare in earth's surface, accelerator are transported to chamber 1 with mine car,
Coarse aggregate size 8mm in the coarse-fine aggregate mixture, fine aggregate are river sand or tailings, and the partial size of sand is 0.3mm, thick, thin
The proportion of aggregate mixture is 1.5:1；
(4) cement, coarse-fine aggregate mixture, water and accelerator are poured into blender 2 to be stirred according to the proportion, is prepared
Pea gravel concreten, wherein the weight ratio of cement, coarse-fine aggregate mixture and water is 1:6:0.65, and accelerator additive amount is mixed for microlith
The 2% of solidifying soil weight；
(5) pea gravel concreten is pumped to through pipeline 6 by stope 9 using concrete pump 3, is laid on waste fill layer 7 existing
Bed course 8 is poured, cast-in-place cushion thickness is 150mm, and intensity can meet the requirement for falling mine and ore machinery haulage up to 3MPa after maintenance.
Embodiment 2
Include the following steps:
(1) stirring of underground concrete and top dressing equipment chamber 1 are built by tunneling construction；
(2) blender 2 and delivery pump 3 are installed in the stirring of underground concrete and top dressing equipment chamber 1, equipment installs
Pipeline 6 is set up along tunnel 4 and courtyard 5 at rear, the blender and delivery pump are that travelling mixer and mobile microlith are mixed
Solidifying soil pump, the pipeline are polyethylene pipe；
(3) the coarse-fine aggregate mixture and cement that prepare in earth's surface, accelerator are transported to chamber 1 with mine car,
Coarse aggregate size 10mm in the coarse-fine aggregate mixture, fine aggregate are river sand or tailings, and the partial size of sand is 0.4mm, thick, thin
The proportion of aggregate mixture is 1.8:1；
(4) cement, coarse-fine aggregate mixture, water and accelerator are poured into blender 2 to be stirred according to the proportion, is prepared
Pea gravel concreten, wherein the weight ratio of cement, coarse-fine aggregate mixture and water is 1:7:0.70, and accelerator additive amount is mixed for microlith
The 2.5% of solidifying soil weight；
(5) pea gravel concreten is pumped to through pipeline 6 by stope 9 using concrete pump 3, is laid on waste fill layer 7 existing
Bed course 8 is poured, cast-in-place cushion thickness is 200mm, and intensity can meet the requirement for falling mine and ore machinery haulage up to 3MPa after maintenance.
Embodiment 3
Include the following steps:
(1) stirring of underground concrete and top dressing equipment chamber 1 are built by tunneling construction；
(2) blender 2 and delivery pump 3 are installed in the stirring of underground concrete and top dressing equipment chamber 1, equipment installs
Pipeline 6 is set up along tunnel 4 and courtyard 5 at rear, the blender and delivery pump are that travelling mixer and mobile microlith are mixed
Solidifying soil pump, the pipeline are polyethylene pipe；
(3) the coarse-fine aggregate mixture and cement that prepare in earth's surface, accelerator are transported to chamber 1 with mine car,
Coarse aggregate size 12mm in the coarse-fine aggregate mixture, fine aggregate are river sand or tailings, and the partial size of sand is 0.5mm, thick, thin
The proportion of aggregate mixture is 2:1；
(4) cement, coarse-fine aggregate mixture, water and accelerator are poured into blender 2 to be stirred according to the proportion, is prepared
Pea gravel concreten, wherein the weight ratio of cement, coarse-fine aggregate mixture and water is 1:8:0.75, and accelerator additive amount is mixed for microlith
The 3% of solidifying soil weight；
(5) pea gravel concreten is pumped to through pipeline 6 by stope 9 using concrete pump 3, is laid on waste fill layer 7 existing
Bed course 8 is poured, cast-in-place cushion thickness is 250mm, and intensity can meet the requirement for falling mine and ore machinery haulage up to 3MPa after maintenance.
Embodiment 4
Include the following steps:
(1) stirring of underground concrete and top dressing equipment chamber 1 are built by tunneling construction；
(2) blender 2 and delivery pump 3 are installed in the stirring of underground concrete and top dressing equipment chamber 1, equipment installs
Pipeline 6 is set up along tunnel 4 and courtyard 5 at rear, the blender and delivery pump are that travelling mixer and mobile microlith are mixed
Solidifying soil pump, the pipeline are polyethylene pipe；
(3) the coarse-fine aggregate mixture and cement that prepare in earth's surface, accelerator are transported to chamber 1 with mine car,
Coarse aggregate size 12mm in the coarse-fine aggregate mixture, fine aggregate are river sand or tailings, and the partial size of sand is 0.4mm, thick, thin
The proportion of aggregate mixture is 1.5:1；
(4) cement, coarse-fine aggregate mixture, water and accelerator are poured into blender 2 to be stirred according to the proportion, is prepared
Pea gravel concreten, wherein the weight ratio of cement, coarse-fine aggregate mixture and water is 1:7.99:0.71, and accelerator additive amount is thin
The 3% of stone concrete weight；
(5) pea gravel concreten is pumped to through pipeline 6 by stope 9 using concrete pump 3, is laid on waste fill layer 7 existing
Bed course 8 is poured, cast-in-place cushion thickness is 200mm, and intensity can meet the requirement for falling mine and ore machinery haulage up to 3MPa after maintenance.
Claims (4)
- The construction method of cast-in-place bed course 1. a kind of underground filling is dug up mine, characterized in that it comprises the following steps:(1) stirring of underground concrete and top dressing equipment chamber are built by tunneling construction；(2) Hou Yanxiang is installed in the stirring of underground concrete and top dressing equipment cave indoor location blender and delivery pump, equipment Road and courtyard set up pipeline；(3) the coarse-fine aggregate mixture and cement that prepare in earth's surface, accelerator are transported to chamber with mine car；(4) cement, coarse-fine aggregate mixture, water and accelerator are poured into blender to be stirred according to the proportion, it is mixed prepares microlith Solidifying soil, wherein the weight ratio of cement, coarse-fine aggregate mixture and water is 1:(6~8): (0.65~0.75), accelerator additive amount It is the 2%~3% of pea gravel concreten weight；(5) pea gravel concreten is pumped to through pipeline by stope using concrete pump, cast-in-place bed course is laid on waste fill layer, Make its intensity up to 3MPa after maintenance.
- The construction method of cast-in-place bed course 2. a kind of underground filling according to claim 1 is dug up mine, it is characterised in that: the step Suddenly in (two), the blender and delivery pump are travelling mixer and mobile fine stone concrete pump, and the pipeline is Polyethylene pipe.
- The construction method of cast-in-place bed course 3. a kind of underground filling according to claim 1 is dug up mine, it is characterised in that: the step Suddenly in (three), coarse aggregate size 8mm~12mm in the coarse-fine aggregate mixture, fine aggregate is river sand or tailings, the grain of sand Diameter is 0.3mm~0.5mm, and the proportion of coarse-fine aggregate mixture is (1.5~2): 1.
- The construction method of cast-in-place bed course 4. a kind of underground filling according to claim 1 is dug up mine, it is characterised in that: the step Suddenly in (five), cast-in-place cushion thickness is 150mm~250mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144867.9A CN109356584A (en) | 2018-09-28 | 2018-09-28 | A kind of underground filling is dug up mine the construction method of cast-in-place bed course |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811144867.9A CN109356584A (en) | 2018-09-28 | 2018-09-28 | A kind of underground filling is dug up mine the construction method of cast-in-place bed course |
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| CN109356584A true CN109356584A (en) | 2019-02-19 |
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| CN201811144867.9A Withdrawn CN109356584A (en) | 2018-09-28 | 2018-09-28 | A kind of underground filling is dug up mine the construction method of cast-in-place bed course |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009046375A (en) * | 2007-08-18 | 2009-03-05 | Shinrin Kenkyusho:Kk | Surface-treated powdery carbon |
| CN102606159A (en) * | 2012-03-26 | 2012-07-25 | 中南大学 | Medium thick heavy-pitch crushed ore body frame type artificial top downward segmenting cemented filling method |
| CN103590851A (en) * | 2013-10-25 | 2014-02-19 | 玉溪矿业有限公司 | Underground waste-rock concrete preparation, pumping and filling system and method |
| CN105735996A (en) * | 2016-02-01 | 2016-07-06 | 中南大学 | Presplitting type wall cutting and filling stoping method for thin ore vein |
| CN105971605A (en) * | 2016-03-11 | 2016-09-28 | 河北工程大学 | A non-waste mining method for underground mines |
| CN206681736U (en) * | 2017-04-11 | 2017-11-28 | 长沙矿山研究院有限责任公司 | Goaf casing pipe protection system |
-
2018
- 2018-09-28 CN CN201811144867.9A patent/CN109356584A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009046375A (en) * | 2007-08-18 | 2009-03-05 | Shinrin Kenkyusho:Kk | Surface-treated powdery carbon |
| CN102606159A (en) * | 2012-03-26 | 2012-07-25 | 中南大学 | Medium thick heavy-pitch crushed ore body frame type artificial top downward segmenting cemented filling method |
| CN103590851A (en) * | 2013-10-25 | 2014-02-19 | 玉溪矿业有限公司 | Underground waste-rock concrete preparation, pumping and filling system and method |
| CN105735996A (en) * | 2016-02-01 | 2016-07-06 | 中南大学 | Presplitting type wall cutting and filling stoping method for thin ore vein |
| CN105971605A (en) * | 2016-03-11 | 2016-09-28 | 河北工程大学 | A non-waste mining method for underground mines |
| CN206681736U (en) * | 2017-04-11 | 2017-11-28 | 长沙矿山研究院有限责任公司 | Goaf casing pipe protection system |
Non-Patent Citations (2)
| Title |
|---|
| 全忠 等: "中山沟金矿采矿方法探讨", 《沈阳黄金学院学报》 * |
| 唐学义 等: "混凝土垫层削壁充填法在急倾斜极薄矿脉中的应用", 《现代矿业》 * |
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Application publication date: 20190219 |
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