CN102704437A - Coal mining subsidence area cultivation water source reconstruction method suitable for complex mountain area - Google Patents
Coal mining subsidence area cultivation water source reconstruction method suitable for complex mountain area Download PDFInfo
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Abstract
The invention relates to a coal mining subsidence area cultivation water source reconstruction method suitable for a complex mountain area, which comprises a water source project, a drainage project and an auxiliary project; the drainage ditch is connected with an inlet of the sand sedimentation tank through a pipeline, an outlet of the sand sedimentation tank is communicated with the trash holding tank, an outlet of the trash holding tank is communicated with an inlet of the impounding reservoir, rainwater subjected to decontamination and sand sedimentation enters the impounding reservoir, an outlet of the impounding reservoir is communicated with the irrigation ditch with lower terrain through a water delivery pipeline, and finally a water source is sent into a farmland. The agricultural irrigation water source recovery method fully utilizes local rainfall resources, strengthens and fixes the water storage and retention capacity of the water source facility, solves the problem of irrigation water demand of local cultivated land, and brings great convenience to agricultural construction of complex mountainous areas.
Description
Technical field
the present invention relates to a kind of farming water source reconstruction method, especially a kind of mining collapse area farming water source reconstruction method of suitable complex mountainous.
Background technology
in some coal mining mountain areas with a varied topography, surface water is mainly derived from natural rainfall, behind the seam mining; Drawing crack causes the rock stratum crack to occur thereby the original mechanical balance of face of land rock mass is damaged generation, and preexisting crack is grown, and the underground water connectedness is good in addition; In the very big Trend of Groundwater Descent Funnel of underground formation scope, make local wellspring far beyond the common mining effect scope withered, the stream cutout; Groundwater table decreasing in the boring causes groundwater resources to destroy.According to field investigation, ploughing in the sinking land in coalmining areas all is the nonirrigated farmland, and dry farming is all carried out in original paddy field; In the Subsidence Area all dry up because of damage in the pool, all can't accumulate the water source; Original wellspring is all dry in the Subsidence Area.In order to make full use of local rainfall resource, and strengthen the fixedly retaining water retaining capacity of water source facility, thereby invent a kind of mining collapse area farming water source reconstruction method, solve local irrigation of ploughing to need water and irrigation be necessary as far as possible.
Summary of the invention
are in order to solve complex mountainous iirigation water source problem of shortage; The present invention provides a kind of mining collapse area farming water source reconstruction method of suitable complex mountainous; This mining collapse area farming water source reconstruction method has made full use of local rainfall resource; And strengthen the retaining water retaining capacity fixed the water source facility, the irrigation that has solved local arable land needs water problems, brings great convenience for the agricultural construction of complex mountainous.
the technical solution adopted for the present invention to solve the technical problems is: this mining collapse area farming water source reconstruction method comprises water source project, drainage works and ancillary works.
(1) water source project is mainly the reservoir engineering; Used reservoir is provided with a up-narrow and down-wide cross section and is trapezoidal pond body; The medial shaft of pool wall is at the bottom of perpendicular to the pond, and the pool wall inboard is coated with one deck waterproofing mortar and wipes one's face, in the upper edge in pond along being provided with the grouted brick door pillar that grouts the ornamental slab for paving the floor enclosure wall and equidistantly lay; Grout the ornamental slab for paving the floor enclosure wall and can prevent effectively that people and animals from falling in the pond; The grouted brick door pillar can increase the stability that grouts the ornamental slab for paving the floor enclosure wall, reservoir front and back be respectively equipped with water inlet and delivery port, a side of reservoir is provided with the reinforced concrete slab door of convenient water intaking.
reservoir base plate all adopts the thick C20 reinforced concrete floor of cast-in-place 90mm-110mm, configuration Φ 8 individual layer steel mesh reinforcements, and 190mm-210mm chunk stone bed course is adopted in the bottom; The reservoir lip adopts 480mm-520mm thick, and the bottom adopts the thick M7.5 cemented rock of 780mm-520mm to build by laying bricks or stones; Pool wall is smeared the thick 1:2.5 waterproofing mortar of 18mm-22mm at twice and is wiped one's face.
pond base plinth must place on the weathered rocks, at first adopts the piece stone bed course of 180mm-220mm to carry out making, the thick C20 reinforced concrete floor of cast-in-place above that then 90mm-110mm; Configuration Φ 8 individual layer steel mesh reinforcements carry out the setting of reservoir bench thereafter, bench length overall 5000mm-5200mm again; Wide 900mm-1100mm; Height overall 2500mm-2800mm, each step wide 280mm-320mm that marks time, high 130mm-160mm; Reservoir ladder step adopts the M7.5 cemented rock to build form by laying bricks or stones, and the ladder step is laterally adopted the thick 1:2.5 waterproofing mortar of the 18mm-22mm form of wiping one's face of smearing in the top.Should settlement joint and shrinkage joint be set according to concrete construction requirement and concrete condition during the reservoir concrete construction, the place, slit adopts rubber fastening band to tamp the asphalt mortar, bituminous mortar filleting.
(2) drainage works is divided into irrigation canal, gutter, catchwater and water conveyance pipeline project; Newly repair the domatic charge for remittance of catchwater for interception mountain area part small hill; Need lay catchwater in its domatic planning; According to reconnaissance trip, confirm that its section is 300mm * 400mm, the design furrow bank adopts the thick M of 230mm-280mm
7.5
Cemented rock all carries out jointing to the furrow bank inboard and handles the thick C of all cast-in-place 40mm-60mm in the top of furrow bank
15
Concrete bears down on one, and the bottom original soil is tamped, and bottom of trench adopts the thick C of 70mm-90mm
20
The concrete base arrangement designs cast-in-place C
20
Settlement joint should be set along the line during the concrete base plate, design adopts the water proofing asphalt of 18mm-22mm to tamp processing, and settlement joint and constuction joint spacing are answered≤6m.Newly repairing catchwater cooperates nonirrigated farmland back of the body ditch to reserve spilled water hole along the line.The spilled water hole spacing is specifically confirmed according to back of the body ditch position, nonirrigated farmland.
trimming discharge section size is confirmed according to original raceway groove section size; The C20 concrete base plate of 80mm-120mm is adopted in bottom, designing and arranging ditch; Furrow bank adopts the thick M7.5 cemented rock of 480mm-520mm; Jointing is all carried out in the furrow bank inboard handle, the top of the furrow bank thick C15 concrete of all cast-in-place 48mm-52mm bears down on one, and the bottom original soil is tamped; Settlement joint should be set along the line when designing cast-in-place C20 concrete base plate, design adopts the water proofing asphalt of 18mm-22mm to tamp processing, settlement joint and constuction joint spacing should≤6m; Newly repairing the gutter cooperates nonirrigated farmland back of the body ditch to reserve spilled water hole along the line; Newly repair aqueduct and cross field soil section employing lower embedding type, design buried depth 0.3m-0.6m, road is directly laid along the roadside along the line, during highway crossing, need cut the laggard capable pipe laying of excavation to highway, backfill original soil after pipeline is laid, and reply original road surface.
(3) ancillary works comprises newly repaiies sand trap, culvert, road culvert and conservancy trash pool; Sand trap is laid in reservoir precontract 2.5m-3.0mm place or irrigation canals and ditches infall, is used for depositing the silt that carries in the current, reduces the sand content of institute's retaining in the reservoir.Adopt the thick C of 200mm-300m at the bottom of sand trap pool wall and the pond
20
The concrete cast-in-place structural adopts the thick C of 75mm-85mm at the bottom of the pond
20
The concrete base plate; Culvert is designed when passing through the road, field by irrigation canals and ditches, is designed to the pipe culvert form, directly adopts the prefabricated reinforced concrete pipeline that has, and culvert pipe adopts the prefabricated mode that has the muscle pipeline directly to imbed.The bottom foundation soil is tamped the compacting of pre-buried employing clay backfilling before culvert pipe is pre-buried.Used pipe fitting adopts the prefabricated muscle pipeline that has, and the pipe joint place adopts pitch fiber crops suede to tamp, and adopts cement mortar to wrap up in the outside, guarantees that interface is tight, and C is laid in the pipeline bottom
20
The concrete bed course; Design when irrigation canals and ditches are crossed on Lu Hanwei production road, Lu Hanjun adopts prefabricated C
20
Steel concrete cover plate form directly adopts irrigation canals and ditches both sides furrow bank as containing pier; Conservancy trash pool is laid in aqueduct import department, is used for tackling silt and the foreign material that carry in the deposition current.Adopt the thick M7.5 grouted brick of 100mm-150mm structure at the bottom of conservancy trash pool pool wall and the pond, adopt the thick C of 60mm-100mm at the bottom of the pond
20
Concrete base plate, and inwall, the pond jacking row processing of wiping one's face in the pond.
After build up water source project, drainage works and ancillary works respectively
(4); Escape canal is linked to each other with the inlet of sand trap through pipeline; The outlet of sand trap is connected with conservancy trash pool, and the outlet of conservancy trash pool is connected with the inlet of reservoir, gets in the reservoir through the rainwater behind the decontamination desilting; The outlet of reservoir is connected through the low irrigation canal of aqueduct and physical features, and the farmland is sent at the water source the most at last.
the invention has the beneficial effects as follows; This mining collapse area farming water source reconstruction method has made full use of local rainfall resource; And strengthen the retaining water retaining capacity fixed the water source facility; The irrigation that has solved local arable land needs water problems, brings great convenience for the agricultural construction of complex mountainous.
Description of drawings
are described further the present invention below in conjunction with accompanying drawing and embodiment.
Fig. 1 is an integral construction scheme sketch map of the present invention.
Fig. 2 is the reservoir cross-sectional view.
Fig. 3 is the sand trap cross-sectional view.
Fig. 4 is a conservancy trash pool plane structure sketch map.
Among
figure, 1-1. irrigation canal, the 1-2. face of land, 1-3. aqueduct, 1-4. valve; 1-5. reservoir, the 1-6. conservancy trash pool, 1-7. sand trap, 2-1. grout the ornamental slab for paving the floor enclosure wall, the 2-2. above-ground route; 2-3. pool wall, the 2-4. waterproofing mortar is wiped one's face, at the bottom of the 2-5. pond, and 2-6. cemented rock, 2-7. grouted brick door pillar; 3-1. the irrigation canals and ditches negative, 3-2. ditch top line, 3-3. concrete pool wall, 4-1. trashrack.
The specific embodiment
in the drawings, the mining collapse area farming water source reconstruction method of this suitable complex mountainous comprises water source project, drainage works and ancillary works.
(1) water source project is mainly the reservoir engineering; Used reservoir is provided with a up-narrow and down-wide cross section and is trapezoidal pond body; The medial shaft of pool wall 2-5 at the bottom of perpendicular to the pond, pool wall 2-3 inboard is coated with one deck waterproofing mortar 2-4 that wipes one's face, in the upper edge in pond along being provided with the grouted brick door pillar 2-7 that grouts ornamental slab for paving the floor enclosure wall 2-1 and equidistantly lay; Grout ornamental slab for paving the floor enclosure wall 2-1 and can prevent effectively that people and animals from falling in the pond; Grouted brick door pillar 2-7 can increase the stability that grouts ornamental slab for paving the floor enclosure wall 2-1, reservoir front and back be respectively equipped with water inlet and delivery port, a side of reservoir is provided with the reinforced concrete slab door of convenient water intaking.
reservoir base plate all adopts the thick C20 reinforced concrete floor of cast-in-place 90mm-110mm, configuration Φ 8 individual layer steel mesh reinforcements, and 190mm-210mm chunk stone bed course is adopted in the bottom; The reservoir lip adopts 480mm-520mm thick, and the bottom adopts the thick M7.5 cemented rock of 780mm-520mm to build by laying bricks or stones; Pool wall is smeared the thick 1:2.5 waterproofing mortar of 18mm-22mm at twice and is wiped one's face.
pond base plinth must place on the weathered rocks, at first adopts the piece stone bed course of 180mm-220mm to carry out making, the thick C20 reinforced concrete floor of cast-in-place above that then 90mm-110mm; Configuration Φ 8 individual layer steel mesh reinforcements carry out the setting of reservoir bench thereafter, bench length overall 5000mm-5200mm again; Wide 900mm-1100mm; Height overall 2500mm-2800mm, each step wide 280mm-320mm that marks time, high 130mm-160mm; Reservoir ladder step adopts the M7.5 cemented rock to build form by laying bricks or stones, and the ladder step is laterally adopted the thick 1:2.5 waterproofing mortar of the 18mm-22mm form of wiping one's face of smearing in the top.Should settlement joint and shrinkage joint be set according to concrete construction requirement and concrete condition during the reservoir concrete construction, the place, slit adopts rubber fastening band to tamp the asphalt mortar, bituminous mortar filleting.
(2) drainage works is divided into irrigation canal 1-1, gutter, catchwater and water conveyance pipeline project; Newly repair the domatic charge for remittance of catchwater for interception mountain area part small hill; Need lay catchwater in its domatic planning; According to reconnaissance trip, confirm that its section is 300mm * 400mm, the design furrow bank adopts the thick M of 230mm-280mm
7.5
Cemented rock all carries out jointing to the furrow bank inboard and handles the thick C of all cast-in-place 40mm-60mm in the top of furrow bank
15
Concrete bears down on one, and the bottom original soil is tamped, and bottom of trench adopts the thick C of 70mm-90mm
20
The concrete base arrangement designs cast-in-place C
20
Settlement joint should be set along the line during the concrete base plate, design adopts the water proofing asphalt of 18mm-22mm to tamp processing, and settlement joint and constuction joint spacing are answered≤6m.Newly repairing catchwater cooperates nonirrigated farmland back of the body ditch to reserve spilled water hole along the line.The spilled water hole spacing is specifically confirmed according to back of the body ditch position, nonirrigated farmland.
trimming discharge section size is confirmed according to original raceway groove section size; The C20 concrete base plate of 80mm-120mm is adopted in bottom, designing and arranging ditch; Furrow bank adopts the thick M7.5 cemented rock of 480mm-520mm; Jointing is all carried out in the furrow bank inboard handle, the top of the furrow bank thick C15 concrete of all cast-in-place 48mm-52mm bears down on one, and the bottom original soil is tamped; Settlement joint should be set along the line when designing cast-in-place C20 concrete base plate, design adopts the water proofing asphalt of 18mm-22mm to tamp processing, settlement joint and constuction joint spacing should≤6m; Newly repairing the gutter cooperates nonirrigated farmland back of the body ditch to reserve spilled water hole along the line; Newly repair aqueduct and cross field soil section employing lower embedding type, design buried depth 0.3m-0.6m, road is directly laid along the roadside along the line, during highway crossing, need cut the laggard capable pipe laying of excavation to highway, backfill original soil after pipeline is laid, and reply original road surface.
(3) ancillary works comprises newly repaiies sand trap 1-7, culvert, road culvert and conservancy trash pool 1-6; Sand trap 1-7 is laid in reservoir 1-5 precontract 2.5m-3.0mm place or irrigation canals and ditches infall, is used for depositing the silt that carries in the current, reduces the sand content of institute's retaining among the reservoir 1-5.Adopt the thick C of 200mm-300m at the bottom of sand trap 1-7 pool wall and the pond
20
The concrete cast-in-place structural adopts the thick C of 75mm-85mm at the bottom of the pond
20
The concrete base plate; Culvert is designed when passing through the road, field by irrigation canals and ditches, is designed to the pipe culvert form, directly adopts the prefabricated reinforced concrete pipeline that has, and culvert pipe adopts the prefabricated mode that has the muscle pipeline directly to imbed.The bottom foundation soil is tamped the compacting of pre-buried employing clay backfilling before culvert pipe is pre-buried.Used pipe fitting adopts the prefabricated muscle pipeline that has, and the pipe joint place adopts pitch fiber crops suede to tamp, and adopts cement mortar to wrap up in the outside, guarantees that interface is tight, and C is laid in the pipeline bottom
20
The concrete bed course; Design when irrigation canals and ditches are crossed on Lu Hanwei production road, Lu Hanjun adopts prefabricated C
20
Steel concrete cover plate form directly adopts irrigation canals and ditches both sides furrow bank as containing pier; Conservancy trash pool is laid in aqueduct import department, is used for tackling silt and the foreign material that carry in the deposition current.Adopt the thick M7.5 grouted brick of 100mm-150mm structure at the bottom of conservancy trash pool pool wall and the pond, adopt the thick C of 60mm-100mm at the bottom of the pond
20
Concrete base plate, and inwall, the pond jacking row processing of wiping one's face in the pond.
After build up water source project, drainage works and ancillary works respectively
(4); Escape canal is linked to each other with the inlet of sand trap 1-7 through pipeline; The outlet of sand trap 1-7 is connected with conservancy trash pool 1-6, and the outlet of conservancy trash pool 1-6 is connected with the inlet of reservoir 1-5, gets among the reservoir 1-5 through the rainwater behind the decontamination desilting; The outlet of reservoir 1-5 is connected with the low irrigation canal 1-1 of physical features through aqueduct 1-3, and the farmland is sent at the water source the most at last.
Claims (4)
1. the mining collapse area farming water source reconstruction method of a suitable complex mountainous, this mining collapse area farming water source reconstruction method comprises water source project, drainage works and ancillary works; It is characterized in that: escape canal is linked to each other with the inlet of sand trap (1-7) through pipeline; The outlet of sand trap (1-7) is connected with conservancy trash pool (1-6); The outlet of conservancy trash pool (1-6) is connected with the inlet of reservoir (1-5); Get in the reservoir (1-5) through the rainwater behind the decontamination desilting, the outlet of reservoir (1-5) is connected through aqueduct (1-3) irrigation canal low with physical features (1-1), and the farmland is sent at the water source the most at last.
2. the water source project of the mining collapse area farming water source reconstruction method of a kind of suitable complex mountainous according to claim 1; It is characterized in that: used reservoir is provided with a up-narrow and down-wide cross section and is trapezoidal pond body; The medial shaft of pool wall (2-5) at the bottom of perpendicular to the pond; Pool wall (2-3) inboard is coated with one deck waterproofing mortar wipe one's face (2-4);, grout ornamental slab for paving the floor enclosure wall (2-1) and can prevent effectively that people and animals from falling in the pond along being provided with the grouted brick door pillar (2-7) that grouts ornamental slab for paving the floor enclosure wall (2-1) and equidistantly lay in the upper edge in pond, grouted brick door pillar (2-7) can increase the stability that grouts ornamental slab for paving the floor enclosure wall (2-1); Reservoir front and back be respectively equipped with water inlet and delivery port, a side of reservoir is provided with the reinforced concrete slab door of convenient water intaking.
3. the drainage works of the mining collapse area farming water source reconstruction method of a kind of suitable complex mountainous according to claim 1; It is characterized in that: drainage works is divided into irrigation canal (1-1), gutter, catchwater and aqueduct (1-3) engineering; Newly repair the domatic charge for remittance of catchwater for interception mountain area part small hill; Need lay catchwater in its domatic planning; According to reconnaissance trip, confirm that its section is 300mm * 400mm, the design furrow bank adopts the thick M of 230mm-280mm
7.5Cemented rock all carries out jointing to the furrow bank inboard and handles the thick C of all cast-in-place 40mm-60mm in the top of furrow bank
15Concrete bears down on one, and the bottom original soil is tamped, and bottom of trench adopts the thick C of 70mm-90mm
20The concrete base arrangement designs cast-in-place C
20Settlement joint should be set along the line during the concrete base plate; Design adopts the water proofing asphalt of 18mm-22mm to tamp processing; Settlement joint and constuction joint spacing are answered≤6m, newly repair catchwater and cooperate nonirrigated farmland back of the body ditch to reserve spilled water hole along the line, and the spilled water hole spacing is specifically confirmed according to back of the body ditch position, nonirrigated farmland.
4. the ancillary works of the mining collapse area farming water source reconstruction method of a kind of suitable complex mountainous according to claim 1; It is characterized in that: ancillary works comprises newly repaiies sand trap (1-7), culvert, road culvert and conservancy trash pool (1-6); Sand trap (1-7) is laid in reservoir (1-5) precontract 2.5m-3.0mm place or irrigation canals and ditches infall; Be used for depositing the silt that carries in the current; Reduce the sand content of institute's retaining in the reservoir (1-5), adopt the thick C of 200mm-300m at the bottom of sand trap (1-7) pool wall and the pond
20The concrete cast-in-place structural adopts the thick C of 75mm-85mm at the bottom of the pond
20The concrete base plate; Culvert is designed when passing through the road, field by irrigation canals and ditches, is designed to the pipe culvert form, directly adopts the prefabricated reinforced concrete pipeline that has, and culvert pipe adopts the prefabricated mode that has the muscle pipeline directly to imbed; Before culvert pipe is pre-buried the bottom foundation soil is tamped, the compacting of pre-buried employing clay backfilling, used pipe fitting adopts the prefabricated muscle pipeline that has; The pipe joint place adopts pitch fiber crops suede to tamp; And adopt cement mortar to wrap up in the outside, and guaranteeing that interface is tight, C is laid in the pipeline bottom
20The concrete bed course; Design when irrigation canals and ditches are crossed on Lu Hanwei production road, Lu Hanjun adopts prefabricated C
20Steel concrete cover plate form directly adopts irrigation canals and ditches both sides furrow bank as containing pier; Conservancy trash pool is laid in aqueduct import department, is used for tackling silt and the foreign material that carry in the deposition current, adopts the thick M7.5 grouted brick of 100mm-150mm structure at the bottom of conservancy trash pool pool wall and the pond, adopts the thick C of 60mm-100mm at the bottom of the pond
20Concrete base plate, and inwall, the pond jacking row processing of wiping one's face in the pond.
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| CN102953359A (en) * | 2012-11-05 | 2013-03-06 | 葛加君 | Method for constructing covered channel through efficient water-saving cast-in-place irrigation and drainage |
| CN109260776A (en) * | 2018-11-19 | 2019-01-25 | 石河子大学 | A kind of settling pit |
| CN112960865A (en) * | 2021-03-02 | 2021-06-15 | 淮南矿业(集团)有限责任公司 | Ecological management method for coal mining subsidence area |
| CN114319266A (en) * | 2021-12-21 | 2022-04-12 | 成都大学 | Construction method of irrigation system for plateau coal mine subsidence area dressing land |
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| CN114319266A (en) * | 2021-12-21 | 2022-04-12 | 成都大学 | Construction method of irrigation system for plateau coal mine subsidence area dressing land |
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Application publication date: 20121003 |