CN107018698A - The restorative procedure of coal mine small-sized Collapse Pit - Google Patents
The restorative procedure of coal mine small-sized Collapse Pit Download PDFInfo
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- CN107018698A CN107018698A CN201610074309.4A CN201610074309A CN107018698A CN 107018698 A CN107018698 A CN 107018698A CN 201610074309 A CN201610074309 A CN 201610074309A CN 107018698 A CN107018698 A CN 107018698A
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- collapse pit
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Soil Sciences (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of restorative procedure of coal mine small-sized Collapse Pit, including according to whether having ponding in coal mine small-sized Collapse Pit, judge that the Collapse Pit type, for rupture type Collapse Pit or hermetic type Collapse Pit, is repaired respectively to rupture type Collapse Pit or hermetic type Collapse Pit；By in solid waste material filling to the small-sized Collapse Pit；Small-sized Collapse Pit carry out table soil after filling is re-covered；According to geography, the geological conditions of small-sized Collapse Pit region, using the woods of restoring area periphery suitable planting, careless vegetation as foundation, artificial pasture, forest land or shrub land are built.The present invention can ensure hole bottom obturation effect, ensure small-sized Collapse Pit recovery project quality, ensure Collapse Pit hole subsoil obturation effect.
Description
Technical field
The present invention relates to mining, the reparation of soil and mine geological environment and the technical field such as utilize, especially
It is to be related to a kind of restorative procedure of coal mine small-sized Collapse Pit.
Background technology
Coal resources are one of important power sources of China, play important in China's economic construction
Support function.The exploitation of coal resources high intensity in decades, the mine environment to mine and its periphery is produced
Serious influence is given birth to.With the progress of production technique, the generation speed and scale of Environmental Problems in Mines are all
Beyond the bearing capacity of environment, increasing Environmental Problems in Mines is highlighted.
Coal mining changes the original Geo environment system of coal field, and mining subsidence problem, mine are secondary
Geological disaster, ask containing (every) water layer structures destruction problem, the mine environmental geology such as solid waste problem
Topic it is direct or indirect threaten mining production safety and Residents in Mining Area weather.With mining subsidence problem
Exemplified by, with obvious mass-sending property and sudden feature, the landscape environment in heavy damage mining area is right
Mining area production safety produces very big hidden danger.
In mining subsidence problem, Collapse Pit is a kind of common mining subsidence form of expression, and the problem is in well
Work mining generally existing, causes a large amount of land resource types, environmental resource destruction and water resource broken
It is bad.Therefore, seek effectively to administer Collapse Pit, the method for repairing mine environment just significant.
By taking the red temple colliery of Nei Mengguzizhiquping village mining area as an example, the colliery is collapsed between nineteen ninety to 2000
Collapse Pit 122, Collapse Pit depth 1.2~15.9m, near coal-mine 8.5~201.5m of diameter occur altogether for sunken area
, only Collapse Pit influence area about 3.84km2.At present, the control that China cheats to Coal Mine Subsidence is still
Lack the research of technicality, seek to be directed to the restorative procedure in Coal Mine Subsidence hole to repairing China's mine environment
And ensure that people's public safety is significant.
The content of the invention
In view of this, it is an object of the invention to propose a kind of restorative procedure of coal mine small-sized Collapse Pit, with
Improve the repairing effect of Environ-geological Problems.
The restorative procedure of the coal mine small-sized Collapse Pit provided based on above-mentioned purpose, the present invention includes following rapid：
According to whether having ponding in coal mine small-sized Collapse Pit, judge that the Collapse Pit type collapses for rupture type
Hole or hermetic type Collapse Pit, are repaired respectively to rupture type Collapse Pit or hermetic type Collapse Pit；
By in solid waste material filling to the coal mine small-sized Collapse Pit；
Ground surface soil is carried out to the coal mine small-sized Collapse Pit after filling to re-cover；
It is suitable with restoring area periphery according to the geography of coal mine small-sized Collapse Pit region, geological conditions
The woods of plantation, careless vegetation are foundation, build artificial pasture, forest land or shrub land.
In some embodiments of the invention, it is described to wrap the step of repaired to the small-sized Collapse Pit of hermetic type
Include：
The hole internal water accumulation for having the small-sized Collapse Pit of ponding is drawn water；
The ponding table soil for digging out hole bottom is tedded；
Table earthen backfill after tedding is to cheating bottom.
In some embodiments of the invention, when tedding ponding table soil, fine coal is added in vector product water meter soil
Ash is mixed, by mixed table earthen backfill to cheating bottom.
In some embodiments of the invention, the ponding table for digging out hole bottom 30~50cm height is native to earth's surface
Tedded and/or added flyash.
In some embodiments of the invention, the step of hole rising pouring is starched is carried out to the small-sized Collapse Pit of rupture type to wrap
Include：First gum size is injected into the bottom crack of hole, then gum size is injected into crater wall crack, directly
Untill having stable slurries liquid level to fracture faces, so that the closely knit slip casting in crack.
In some embodiments of the invention, the crack slip casting of multiple hole bottoms is equably set on the bottom crack of hole
Hole, equably sets multiple crater wall cracks injected hole on crater wall crack, by these injected holes to hole bottom
Crack, crater wall crack are carried out repeatedly, multiple spot slip casting.
In some embodiments of the invention, it is described by solid waste material filling to the coal mine small-sized Collapse Pit
Interior step includes：
Using in solid waste material filling to small-sized Collapse Pit, 20~30cm compactings are often backfilled once；
Fill 15~20cm under elevation to earth's surface elevation；
Last layer need to use mechanical compacting, and ramming volume is less than 5cm every time.
In some embodiments of the invention, in addition to：
The earth's surface debris in being cheated to small-sized Collapse Pit and hole periphery is cleared up；
Peel off the table soil on small-sized Collapse Pit periphery.
In some embodiments of the invention, it is 30~40m of Collapse Pit periphery to peel off the native scope of table, is peeled off
Depth is 40~60cm.
In some embodiments of the invention, after the stripping the native accumulation deposit of table, per circumference table mound
Put region water spray to be no less than 3 times, unit area spraying time is no less than 20 seconds, injection flow rate is 4~6 flat
Fang meter Biao soil/cubic meter of water.
From the above it can be seen that the restorative procedure for the coal mine small-sized Collapse Pit that the present invention is provided utilizes coal
Ore deposit itself solid waste coordinates slip casting to repair coal Environ-geological Problems, compared with prior art, the present invention
Show following advantage：According to small-sized Collapse Pit type is divided with the presence or absence of ponding in Collapse Pit, it is determined that collapsing
The different construction method in pitfall hole bottom, ensures hole bottom obturation effect, ensures small-sized Collapse Pit recovery project matter
Amount；There is ponding Collapse Pit to cheat bottom table soil by digging out, tedding, being mixed into the adjustment of the methods such as flyash, ensure
Collapse Pit cheats subsoil obturation effect；By injecting colloidal materials, envelope at hole bottom and the crack of crater wall to developing
Crack is closed, hole bottom and underground roadway UNICOM is prevented, hole bottom obturation effect is ensured.It can be seen that, the present invention is provided
Restorative procedure be effectively improved colliery ecological environment；Embody and topsoil is adequately protected and utilized, greatly
It is possible to repair original mine geological environment；Reparation colliery from the angle science of Collapse Pit mechanism is small
Type Collapse Pit, effectively ensures underground coal exploitation work safety；Can be effectively ecological with later stage colliery
Repair and build " bridge ", be that later stage restoration of the ecosystem provides safeguard.
Brief description of the drawings
The sectional view that Fig. 1 repairs for the hermetic type coal mine small-sized Collapse Pit of embodiments of the invention；
The sectional view that Fig. 2 repairs for the rupture type coal mine small-sized Collapse Pit of embodiments of the invention；
Fig. 3 starches plan for the rupture type coal mine small-sized Collapse Pit hole rising pouring of embodiments of the invention.
Label is expressed as follows in figure：1- Collapse Pits, 2- suction pumps, 3- hermetic type subsidence basin earth's surfaces, 4- products
Water；5- teds area (hole bottom ponding table soil), 6- rupture type subsidence basin earth's surfaces, 7- crater walls crack, 8- without
Crack area, 9- holes bottom crack, 10- holes bottom crack injected hole, 11- crater walls crack injected hole.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific implementation
Example, and referring to the drawings, the present invention is described in more detail.
As one embodiment of the present of invention, collapsed with Inner Mongol Bao Xile mining areas mine coal mine small-sized
Exemplified by hole backfill is repaired.Bao Xile mines are located at Chen Qi coalfields, and administrative division is under the jurisdiction of Hulun Buir
City Chenbarhu Banner Bao Xile towns.Mining area belongs to continental subfrigid zone weather, and river left bank is strangled positioned at More's lattice
On second-order terrace, soil types is chernozem, and thickness is generally higher than 0.5m.Geomorphic type belongs to mound in mining area
Mound landforms, physical features northeast is high and Nan Xi is low.Stratum is by always to newly having in mining area：System pricks grant promise under Cretaceous System
You are at group's Damoguaihe Formation and the 4th.Ecological environment is grassland in mining area, and earth's surface peat layer is thin, in addition
Long-term drought, ecological environment is more fragile.
Bao Xile exploited thecoal mines start from 1980, so far existing 30 years history.Small coal mine number in mining area
Amount is up to 218, and the small coal pit excavation in last century make it that development has substantial amounts of colliery small in coal mining region
Type Collapse Pit, these Collapse Pit dense distributions are developed, 1~15m of diameter in " tubular ", deep 1.5~
5m, belongs to small-sized Collapse Pit.
According to Bao Xile mine geologies environmental background, mineral resources species, mining type and roof and floor pipe
The developmental state of reason mode and coal mine small-sized Collapse Pit, it is contemplated that the small-sized Collapse Pit intensive development in the mine and
State is tended to surely to sink, the restorative procedure for the coal mine small-sized Collapse Pit that can be provided using the present invention be repaiied
Multiple, specifically, the restorative procedure of the coal mine small-sized Collapse Pit comprises the following steps：
1) Coal Mine Subsidence hole scale is made a distinction, it is small-sized Collapse Pit to determine Collapse Pit, is collapsed with small-sized
Cheat as the reparation object of the present invention.
Specifically, in the preferred embodiment of the present invention, the step can be specifically included：Pass through reality
Ground carries out the preliminry basic research that place is repaired in Coal Mine Subsidence hole, knows distributed areas, the distribution in Coal Mine Subsidence hole
The developmental states such as quantity, development scale, choose small-sized Collapse Pit as reparation object.
Usually, Collapse Pit is presented approximate circle in earth's surface, can be according to measurement during statistics Collapse Pit diameter
Diameter is less than or equal to 38~42m coal by obtained Collapse Pit maximum chord length as the diameter of the Collapse Pit
Ore deposit Collapse Pit is used as small-sized Collapse Pit.The Collapse Pit of remaining shape can then be determined according to area, a lot
Approximate quadrangle or irregular strip is presented in region Collapse Pit, can manually map out Collapse Pit development signal
Figure, the area of Collapse Pit is calculated according to development shape, area is less than or equal into 1450~1550m on the diagram2
Collapse Pit is used as small-sized Collapse Pit.
It is preferred that the step also includes：The developmental state cheated according to the Coal Mine Subsidence draws Coal Mine Subsidence
Coal mine small-sized Collapse Pit distribution schematic diagram and sectional axonometric drawing in region, collapse in order to carry out coal mine small-sized
The recovery project of pitfall.
If it should be noted that coal mine small-sized Collapse Pit is developed in subcircular, but beading is presented in earth's surface
Development, can also develop the beading sink pit of intensive development region as coal mine small-sized Collapse Pit, with list
Cheat to repair object, repaired one by one.
2) the earth's surface debris in being cheated to small-sized Collapse Pit and hole periphery is cleared up.
Specifically, in another embodiment of invention, the step 2) it may further include：
The earth's surface debris such as weeds, rubbish, solid waste for clearing up in small-sized Collapse Pit, is cleared to reparation area
The special stacking region that domain is set, during clearing and accumulation place need to prevent secondary environmental disruption.Tool
Body, the step can be constructed using the method for manual cleaning, and the lower personnel in hole must be set in construction
Safety prevention measure, prevents that Collapse Pit hole bottom is collapsed in construction.
Remove small-sized Collapse Pit circumferential distribution because coal mining activities accumulate residual Gangue, hillock, powder
The earth's surface debris such as coal ash heap, house refuse, clears to mine soot or on-site and specially stacks region,
During clearing and accumulation place need to prevent secondary environmental disruption.The process of clearing will in advance be planned and cleared
Route, prevents from damaging to repairing area's surface soil.
3) the table soil on small-sized Collapse Pit periphery is peeled off.
In the preferred embodiment of the present invention, the table soil in the relative development region of vegetation, table soil fortune are peeled off
Special setting region is delivered to properly to preserve.Peel off the table that the native scope of table is Collapse Pit periphery 30~40m scopes
Soil, stripping depth need according to fetch earth ground earth's surface mellow soil actual grade determine, general stripping depth be 40~
60cm, minimum-depth is no less than 30cm.Manual method or machinery can be used by peeling off the work progress of table soil
Method, such as uses backacter using mechanical means suggestion, crawler dozer tool etc. is not recommended
Heavy construction machinery.
After topsoil stripping can accumulation deposit, per circumference table mound put region water spray be no less than 3 times, unit plane
Product spraying time is no less than 20s.The effect of this step is to reduce restoring area topsoil disturbance rear batallion
The destruction and forfeiture formed point.Alternatively, injection flow rate is 5 square metres of table soil/cubic meter of water.Alternatively,
Injection flow rate is 5.5 square metres of table soil/cubic meter of water.Alternatively, injection flow rate is 6 square metres of table soil/cubic meters
Water.
4) according to whether having ponding in coal mine small-sized Collapse Pit, judge that the Collapse Pit type is collapsed for rupture type
Pitfall or hermetic type Collapse Pit, are repaired respectively to rupture type Collapse Pit or hermetic type Collapse Pit.
Whether the present invention is by being that rupture type collapses to there is ponding to divide Collapse Pit type in coal mine small-sized Collapse Pit
Pitfall and hermetic type Collapse Pit.Rupture type Collapse Pit is shown as：Hole bottom generally ruptures out-of-flatness, crater wall four
There is fracture development week, rupture shape or flat shape can be presented in hole bottom, as shown in Figure 2；Hermetic type Collapse Pit table
It is now：Cheat bottom generally smooth, hole bottom free from flaw is developed, and has ponding in hole, as shown in Figure 1.
It is described to wrap the step of repaired to the small-sized Collapse Pit of hermetic type as one embodiment of the present of invention
Include：The hole internal water accumulation for having the small-sized Collapse Pit of ponding is drawn water, hole bottom ponding table soil is then tedded,
And/or flyash is added into ponding table soil, ted or mixed table soil is used to backfill hole
Bottom.
, it is necessary to be drawn water to the small-sized Collapse Pit for having ponding, such as after debris in cleaning Collapse Pit hole
Shown in Fig. 1, work of drawing water can be carried out with portable 2 pairs of hole internal water accumulations 4 of suction pump, until water accumulating volume drop
To visible hole bottom.Then, ponding table soil 5 to the earth's surface for digging out hole bottom 30~50cm height is turned over
Shine, the moisture content in ponding table soil is down to such native optimum moisture content, (concrete numerical value can refer to locality
The Earthwork Experiment Data of identical soil layer in geotechnical investigation report).
As another embodiment of the present invention, while tedding, it can also be added in vector product water meter soil
Flyash is mixed, and the moisture content in ponding table soil is down to such native optimum moisture content (specific number
Value can refer to the Earthwork Experiment Data of identical soil layer in local geotechnical investigation report).
If it is less (need not draw water) to cheat bottom ponding, but hole bottom table soil is in pureed or flow regime, is dug out
The ponding table soil 5 of bottom 30~50cm height is cheated to earth's surface, adding flyash into table soil is mixed
Close, stirring to soil body nature does not deform can be (even if the moisture content in ponding table soil be down to this
The optimum moisture content of class soil).In yet another embodiment of the present invention, the pureed or stream can also be tedded
The hole bottom table soil of dynamic state, makes the moisture content in ponding table soil be down to such native optimum moisture content.Most
Afterwards, it will ted and/or add the hole bottom table earthen backfill that flyash is mixed to bottom is cheated, then tamp.Need explanation
, the method for tedding and adding flyash be in order that ponding table soil's water content is down to appropriate value,
Can select in two methods any one or both be used together.
As an alternative embodiment of the invention, Collapse Pit small-sized to rupture type carries out the step of hole rising pouring is starched
Including：First gum size is injected into the bottom crack of hole, then gum size is injected into crater wall crack,
Untill having stable slurries liquid level until fracture faces, so that the closely knit slip casting in crack.The present invention is used and first repaiied
Again hole bottom crack, repair again crater wall crack mode enable gum size fully toward crater wall flow, more
Be conducive to the closely knit slip casting of fracture, so as to improve slip casting effect and efficiency.
The rupture type small-sized Collapse Pit hole many intensive development cracks in bottom, crack may with Goaf Area UNICOM or
Go deep into earth's surface certain depth, backfilling working is needed before starting by the closely knit slip casting in crack.As shown in Fig. 2 rupture
It is to have in free from flaw area 8, crater wall that the hole bottom of the small-sized Collapse Pit of type, which has between hole bottom crack 9, hole bottom crack 9,
Crater wall crack 7.Enter as shown in figure 3, the present invention first passes through 10 pairs of holes of hole bottom crack injected hole bottom crack 9
The closely knit slip casting of row, then closely knit slip casting is carried out to crater wall crack 7 by crater wall crack injected hole 11.It is preferred that
Ground, can equably set multiple hole bottoms crack injected hole 10 on the bottom crack 9 of hole, can also be in crater wall
Multiple crater wall cracks injected hole 11 is equably set on crack 7, by these injected holes to hole bottom crack
9th, crater wall crack 7 carries out multiple multiple spot slip casting, to improve filling compactness.
In a preferred embodiment of the invention, the gum size used in slip casting is that strength grade is M7.5
Cement mortar or cement mixing mortar or other there is the gum size (such as Gao Shui) of anti-seepage effect.
5) by solid waste material filling to small-sized Collapse Pit.
The solid waste material filling being had using mining areas such as spoil, flyash to reinforced or repaired hole bottom it is small
In type Collapse Pit, 20~30cm compactings are often backfilled once.Alternatively, hand compaction or machinery can be used
The method of compacting carries out compaction in layers.It is preferred that 15~20cm under filling elevation to earth's surface elevation, finally
One layer need to use mechanical compacting, and ramming volume is less than 5cm every time.
6) coal mine small-sized Collapse Pit restoring area carry out table soil is re-covered.
Earthing work is carried out to the coal mine small-sized Collapse Pit after filling, thickness of earth covering is more than or equal to 20cm.It is right
Restoring area need to ensure that earthing region is consistent with neighboring area ground surface type.Carried out after earthing in restoring area
Watering work, every square metre of watering is more than or equal to 2L.Preferably, the earthing optional step 3) peel off
Small-sized Collapse Pit periphery table soil, in favor of the growth of vegetation.
7) it is suitable with restoring area periphery according to the geography of coal mine small-sized Collapse Pit region, geological conditions
Woods, the careless vegetation preferably planted are foundation, build artificial pasture, forest land or shrub land.According to reparation
Geography, the geological conditions such as region meteorology, the hydrology, land occupation condition and soil, determine that Collapse Pit repairs area
The woods of domain suitable planting, careless vegetation, build artificial pasture and forest land or shrub land.
Vegetation repair will meet local ecological rule, by taking Inner Mongol area and northeast some areas as an example, with
Longitude changes, and can selectively be planted from east orientation west：Black birch, hazel shrubbery, Mongolian oak, Stipa grandis, sheep
Grass, K-wire tension band, small Stipa capillata, Stipa breviflora, Stipa glareosa, wormwood artemisia class, caragana class, pearl bavin,
Continuous thorn, red sand, sacsaoul, overlord etc..
The restorative procedure for the coal mine small-sized Collapse Pit that Bao Xile is provided from the present invention, it is intended to repairing mine
And the original surface configuration in neighboring area, effectively using gangue, reduce solid waste accumulation.Bao Xile mining areas
Production history is long, and development has substantial amounts of Collapse Pit, with pre-existing topography ratio after being repaired through Coal Mine Subsidence hole
According to not seeing the repair coverage of Collapse Pit substantially.
As described above, the restorative procedure for the coal mine small-sized Collapse Pit that the present invention is provided has following beneficial effect
Really：
(1) coal mine small-sized Collapse Pit Type division：To the existing Coal Mine Subsidence of Bao Xile mining areas Coal Mine
Hole carries out Type division, determines the type of Collapse Pit, so as to implement targeted to coal mine small-sized Collapse Pit
Restorative procedure；
(2) coal mine small-sized Collapse Pit type is determined：Small-sized collapse is divided according to whether there is ponding in Collapse Pit
Pitfall type, determines the different construction method in Collapse Pit hole bottom, ensures hole bottom obturation effect, ensure small-sized
Collapse Pit recovery project quality.
(3) changing has the small-sized native moisture content of Collapse Pit hole bottom table of ponding：By digging out, tedding, be mixed into powder
The adjustment of the methods such as coal ash has ponding Collapse Pit to cheat bottom table soil, ensures Collapse Pit hole subsoil obturation effect.
(4) slip casting rupture type Collapse Pit hole bottom：By injecting colloid at hole bottom and the crack of crater wall to developing
Material, dead-end fracture prevents hole bottom and underground roadway UNICOM, ensures hole bottom obturation effect.
(5) woods, meadow are repaired：By re-covering table soil, the life of reasonable Arrangement mining area suitably to administering region
State crop, it is ensured that repair mining area vegetation group and enrich, improve the effect of mine geology environment remediation.
(6) a kind of coal mine small-sized Collapse Pit for integrating a variety of coal mine small-sized Collapse Pit recovery techniques is formed
Restorative procedure, is applicable to similar coal mine small-sized Collapse Pit reparation.
Those of ordinary skills in the art should understand that：The discussion of any of the above embodiment is merely illustrative
, it is not intended that imply that the scope of the present disclosure (including claim) is limited to these examples；In this hair
Under bright thinking, group can also be carried out between the technical characteristic in above example or non-be the same as Example
Close, and there are many other changes of the different aspect of the present invention as described above, they do not have for simplicity
Have and provided in details.Any omission for therefore, within the spirit and principles of the invention, being done,
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of restorative procedure of coal mine small-sized Collapse Pit, it is characterised in that including following rapid：
According to whether having ponding in coal mine small-sized Collapse Pit, judge that the Collapse Pit type collapses for rupture type
Hole or hermetic type Collapse Pit, are repaired respectively to rupture type Collapse Pit or hermetic type Collapse Pit；
By in solid waste material filling to the coal mine small-sized Collapse Pit；
Ground surface soil is carried out to the small-sized Collapse Pit after filling to re-cover；
It is suitable with restoring area periphery according to the geography of coal mine small-sized Collapse Pit region, geological conditions
The woods of plantation, careless vegetation are foundation, build artificial pasture, forest land or shrub land.
2. the restorative procedure of coal mine small-sized Collapse Pit according to claim 1, it is characterised in that institute
Stating the step of being repaired to the small-sized Collapse Pit of hermetic type includes：
The hole internal water accumulation for having the small-sized Collapse Pit of ponding is drawn water；
The ponding table soil for digging out hole bottom is tedded；
Table earthen backfill after tedding is to cheating bottom.
3. the restorative procedure of coal mine small-sized Collapse Pit according to claim 1, it is characterised in that
Flyash is added when tedding ponding table soil, in vector product water meter soil to be mixed, by mixed table earthen backfill
To hole bottom.
4. the restorative procedure of the coal mine small-sized Collapse Pit according to Claims 2 or 3, its feature exists
In the ponding table soil for digging out hole bottom 30~50cm height is tedded and/or added fine coal to earth's surface
Ash.
5. the restorative procedure of coal mine small-sized Collapse Pit according to claim 1, it is characterised in that right
The small-sized Collapse Pit of rupture type, which carries out the step of hole rising pouring is starched, to be included：Gum size is first injected into hole bottom crack
It is interior, then gum size is injected into crater wall crack, until the slurries liquid level that fracture faces have stabilization is
Only, so that the closely knit slip casting in crack.
6. the restorative procedure of coal mine small-sized Collapse Pit according to claim 5, it is characterised in that
Hole equably sets multiple hole bottoms crack injected hole on the crack of bottom, equably sets multiple on crater wall crack
Crater wall crack injected hole, by the way that these injected holes are carried out repeatedly to hole bottom crack, crater wall crack, multiple spot is noted
Slurry.
7. the restorative procedure of coal mine small-sized Collapse Pit according to claim 1, it is characterised in that institute
Stating includes the step in solid waste material filling to the coal mine small-sized Collapse Pit：
Using in solid waste material filling to small-sized Collapse Pit, 20~30cm compactings are often backfilled once；
Fill 15~20cm under elevation to earth's surface elevation；
Last layer need to use mechanical compacting, and ramming volume is less than 5cm every time.
8. the restorative procedure of coal mine small-sized Collapse Pit according to claim 1, it is characterised in that also
Including：
The earth's surface debris in being cheated to small-sized Collapse Pit and hole periphery is cleared up；
Peel off the table soil on small-sized Collapse Pit periphery.
9. the restorative procedure of coal mine small-sized Collapse Pit according to claim 8, it is characterised in that stripping
It is 30~40m of Collapse Pit periphery from the native scope of table, stripping depth is 40~60cm.
10. the restorative procedure of coal mine small-sized Collapse Pit according to claim 8, it is characterised in that
The native accumulation deposit of table after the stripping, puts region water spray per circumference table mound and is no less than 3 times, unit plane
Product spraying time is no less than 20 seconds, and injection flow rate is 4~6 square metres of table soil/cubic meter of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610074309.4A CN107018698A (en) | 2016-02-02 | 2016-02-02 | The restorative procedure of coal mine small-sized Collapse Pit |
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| CN111676946A (en) * | 2020-06-22 | 2020-09-18 | 六盘水师范学院 | Loess coverage area coal mining ecological restoration method |
| CN113565564A (en) * | 2020-04-28 | 2021-10-29 | 山西机械化建设集团有限公司 | Open pit and full-collapse goaf layered backfill dynamic compaction treatment method |
| CN114483171A (en) * | 2022-01-06 | 2022-05-13 | 紫金矿业集团股份有限公司 | Buried pipe backfill bottom sealing grouting method for karst collapse treatment |
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| CN111236207A (en) * | 2019-05-16 | 2020-06-05 | 杭州绿农环境工程有限公司 | Method for restoring abandoned mine pit into paddy field based on building residue soil filling engineering |
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| CN114483171A (en) * | 2022-01-06 | 2022-05-13 | 紫金矿业集团股份有限公司 | Buried pipe backfill bottom sealing grouting method for karst collapse treatment |
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