CN107729629A - A kind of environmental hydrogeology subregion application process for contaminated site - Google Patents
A kind of environmental hydrogeology subregion application process for contaminated site Download PDFInfo
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- CN107729629A CN107729629A CN201710887304.8A CN201710887304A CN107729629A CN 107729629 A CN107729629 A CN 107729629A CN 201710887304 A CN201710887304 A CN 201710887304A CN 107729629 A CN107729629 A CN 107729629A
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- 230000007613 environmental effect Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008569 process Effects 0.000 title claims abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 115
- 239000004927 clay Substances 0.000 claims abstract description 44
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 36
- 231100000719 pollutant Toxicity 0.000 claims abstract description 36
- 238000009792 diffusion process Methods 0.000 claims abstract description 27
- 238000013508 migration Methods 0.000 claims abstract description 18
- 230000005012 migration Effects 0.000 claims abstract description 18
- 239000004576 sand Substances 0.000 claims description 21
- 239000000356 contaminant Substances 0.000 abstract description 10
- 238000011835 investigation Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- 201000004569 Blindness Diseases 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 235000013312 flour Nutrition 0.000 description 11
- 239000010445 mica Substances 0.000 description 5
- 229910052618 mica group Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- -1 thickness Substances 0.000 description 2
- 102000000584 Calmodulin Human genes 0.000 description 1
- 108010041952 Calmodulin Proteins 0.000 description 1
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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Abstract
The invention discloses a kind of environmental hydrogeology subregion application process for contaminated site, comprise the following steps：Collect the environmental hydrogeology situation data of superficial part soil layer in soft clay area；According to the environmental hydrogeology situation data, the soft clay area is divided into some subregions, the soil body of each subregion can make the pollutant in it have geographical position coordinates value respectively to specific direction diffusion mobility, each subregion；According to the geographical position coordinates value of contaminated site to be analyzed, inquiry determines the subregion where the contaminated site to be analyzed, according to the pollutant migration and diffusion direction rule in the subregion of place, judges pollution range and depth of the pollutant in the contaminated site to be analyzed.It is an advantage of the invention that:The environmental hydrogeology subregion that hydrogeology is associated with environmental pollution is realized, this method is advantageous to quickly judge the contaminant transportation regularity of distribution, and the investigation and repair to contaminated site have certain directive significance, reduce the blindness of well-sampling.
Description
Technical field
The invention belongs to environmental geotechnical technical field, and in particular to a kind of environmental hydrogeology for contaminated site
Subregion application process.
Background technology
The repairing and treating of contaminated site has big technical difficulty, repairing and treating cycle length and cost is high, is related to multidisciplinary friendship
The distinguishing features such as fork, are one of world-class problem that field of Environment Protection faces for a long time.Part advanced country pollutes for a long time
Site remediation practice have shown that, contaminated site, which is administered, to be needed according to water and soil comprehensive analysis, the strategy of combined governance, integrated environment,
The advantage in the multidisciplinary field such as matter, ground, chemistry and biology, solves key technical problem therein with joint efforts.
Generally using conventional shaft building sample mode, it is low, different to there is cost height, efficiency at present in contaminated site environmental survey
The significantly deficiency such as depth intersection pollution, sampling process contaminant loss, it is difficult to ensure the quality and representativeness of collection sample.Pollution
The migration of thing and hydrogeologic condition are closely bound up, hydrogeological calmodulin binding domain CaM macroscopic view hydrogeologic condition feature, different pollutions
Thing migrates essential characteristic, and rapid preliminary judges the spatial distribution scope of contaminated sites underground water, and become more meticulous investigation work efficiency to raising
And the representativeness of inspection enhancing detection data has important directive significance.
The content of the invention
According to the deficiencies of the prior art described above, It is an object of the present invention to provide a kind of ambient water for contaminated site
Literary geologic division application process, the environment water level geologic division application process are divided according to the environment water level geologic parameter of the soil body
Area, so that there is the specific rule for making pollutant migration and diffusion respectively, so that staff can in different types of subregion
The subregion where contaminated site to be analyzed is determined by geographical position coordinates, so as to carry out one to the contaminated site to be analyzed
The quick judgement of individual contaminant transportation scope and depth.
The object of the invention is realized and completed by following technical scheme：
A kind of environmental hydrogeology subregion application process for contaminated site, it is characterised in that the environmental hydrogeology subregion
Application process comprises the following steps：Collect the environmental hydrogeology situation data of superficial part soil layer in soft clay area；According to the ring
Border hydrological geological conditions data, the soft clay area is divided into some subregions, number consecutively is Ith area, IIth area, IIIth area and IV
Area, the soil body of each subregion can make the pollutant in it have geography respectively to specific direction diffusion mobility, each subregion
Position coordinate value；According to the geographical position coordinates value of contaminated site to be analyzed, inquiry is determined where the contaminated site to be analyzed
Subregion, according to the pollutant migration and diffusion direction rule in the subregion of place, judge pollutant in the contaminated site to be analyzed
Interior pollution range and depth.
Superficial part clay distribution in the soft clay area there are into fill stratum, crust layer, mealiness soil layer or silty sand ground and mud
The region division of matter stickiness soil layer is Ith area, and Ith area is advantageous to migration of the pollutant on vertically and horizontally
Diffusion.
Superficial part clay distribution in the soft clay area there are into fill stratum, crust layer, Muddy Bottoms stickiness soil layer and described
The region division that mealiness soil layer or silty sand ground are locally accompanied in Muddy Bottoms stickiness soil layer is IIth area, and IIth area is advantageous to dirt
Contaminate the diffusion mobility of thing in the horizontal direction.
The region that superficial part clay distribution in the soft clay area has fill stratum, crust layer and Muddy Bottoms stickiness soil layer is drawn
It is divided into IIIth area, IIIth area is unfavorable for pollutant migration and diffusion.
By superficial part in the soft clay area be distributed with fill stratum, crust layer and thick-layer it is plastic-area of hard plastic stickiness soil layer
Domain is divided into IVth area, and IVth area is unfavorable for pollutant migration and diffusion, and the thick-layer is plastic-and hard plastic stickiness soil layer is more than
3m。
The superficial part soil layer refers in below ground 20m depth bounds.
The contaminated site to be analyzed can move across at least two subregions according to the pollutant in each subregion
Dispersal direction rule and the geographical position coordinates of original pollution sources are moved, judge pollutant in the contaminated site to be analyzed
Pollution range and depth.
It is an advantage of the invention that：Realize the environmental hydrogeology subregion that hydrogeology is associated with environmental pollution, this method
Being advantageous to quickly judge the contaminant transportation regularity of distribution, the investigation and repair to contaminated site have certain directive significance,
Reduce the blindness of well-sampling.
Brief description of the drawings
Fig. 1 is the typical soil layer in Ith area in the present invention（2.3Layer）Diagrammatic cross-section；
Fig. 2 is the typical soil layer in Ith area in the present invention（1.3Layer）Diagrammatic cross-section；
Fig. 3 is the typical soil layer diagrammatic cross-section in IIth area in the present invention；
Fig. 4 is the typical soil layer diagrammatic cross-section in IIIth area in the present invention；
Fig. 5 is the environmental hydrogeology map section of District of Shanghai in the present invention.
Embodiment
The feature of the present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with accompanying drawing, with
It is easy to the understanding of technical staff of the same trade：
Embodiment：The present embodiment is specifically related to a kind of environmental hydrogeology subregion application process for contaminated site, mainly relates to
And the application after the subregion and subregion of soft clay area, realize and the migration situation of pollutant in contaminated site to be analyzed is sentenced
Setting analysis, specifically include following steps：
（1）Collect the environmental hydrogeology situation data of superficial part soil layer in a certain soft clay area；Soft clay area herein can be by
It is collected according to administrative division, e.g. in the range of county, city, province, soft clay area selection is Shanghai City area in the present embodiment；
Clay distribution of the collected environmental hydrogeology situation data including superficial part soil layer, thickness condition, soil permeability sex differernce, soil
Earth granular size etc., subregion is carried out to shallow stratum in soft clay area so as to realize；
The present embodiment illustrates by taking District of Shanghai as an example, according to existing data, Central Shanghai below ground 20m depth models
Key horizon situation is summarized as follows in shallow stratum in enclosing：
1.1Layer bankets, and containing rubble, stone, rubbish, plant roots and stems etc., soil property is uneven, in loose condition (of surface)；This layer of soil thickness one
As be 0.5m~3.0m；
1.3Layer silty soil（It is commonly called as Jiang Tantu）, it is local based on clayey silt containing spiral case, the impurity such as shell chip, monofilament
More muck soil is pressed from both sides, local is sandy silt, in loose~slightly close state；This layer of soil thickness is generally 4.0m~15.0m；
2.1The isabelline cohesive soil of layer, referred to as crust layer, the iron speck point containing oxidation and iron manganese concretion, in plastic state；The layer
Soil thickness is generally 1.5m~2.0m；
2.3Layer grey silty soil, flour sand, containing mica, thin layer cohesive soil is pressed from both sides, soil property is uneven, in loose~slightly close state；The layer
Soil thickness is generally 3.0m~15.0m；
The 3. layer grey Muddy Bottoms silty clay, containing mica, organic matter, press from both sides lamelliform flour sand, it is local for soft modeling shape silty clay,
In liquid-plastic state；This layer of soil thickness is generally 5.0m~10.0m；
3.FolderLayer grey silty soil, flour sand, containing mica, thin layer cohesive soil is pressed from both sides, in loose~slightly close state；This layer of soil thickness one
As be 0.5m~2.0m；
The 4. layer grey Muddy Bottoms cohesive soil, containing mica, organic matter, presss from both sides a small amount of thin layer flour sand, local to press from both sides shell chip, is moulded in stream
State；This layer of soil thickness is generally 5.0m~10.0m；
5.1Layer grey clay, it is local to press from both sides shell chip containing mica, organic matter, folder mud, calcareous concretion, half rotten Reed rhizome,
In soft modeling~plastic state；This layer of soil thickness is generally 5.0m~15.0m；
6.1Thickness layer is plastic-hard plastic stickiness soil layer；
6.2Layer silty soil.
（2）The collected environmental hydrogeology situation data of analysis, clay distribution, thickness condition according to superficial part soil layer
（Mealiness soil layer, the buried depth of sandy soils and difference in thickness）, soil permeability sex differernce（Silty soil, sand permeability are preferable, are advantageous to
The diffusion mobility of pollutant, stickiness soil permeability is poor, is unfavorable for the diffusion mobility of pollutant）, soils particles size percent content（Particle is got over
Macroporsity is bigger, is advantageous to the migration of pollutant）Deng environmental hydrogeology situation, shallow stratum in soft clay area is divided
Area, and number consecutively is Ith area, IIth area, IIIth area and IVth area, pollutant in the soil body of different subregions there is different migrations to expand
Rule is dissipated, it is described in detail below：
a:Ith area
It is Ith area that superficial part clay distribution in soft clay area is had into the region division of mealiness soil layer or silty sand ground, specifically fill stratum, hard
Shell, mealiness soil layer or silty sand ground and Muddy Bottoms stickiness soil layer, Ith area are advantageous to pollutant on vertically and horizontally
Diffusion mobility；By taking District of Shanghai as an example, Ith area is distributed mainly on Wusongjiang River therefore river course, Huangpu River river Tan Tu distributed areas, shallow-layer have
Silty soil or flour sand distribution, be advantageous to pollutant vertically to level to migration；Cutd open as shown in Figure 1, 2 for the typical stratum in Ith area
Have the in face schematic diagram, wherein Fig. 1 2.3Layer grey silty soil, flour sand, have the in Fig. 2 1.3Layer silty soil.
In addition, cause soil nature different according to silty soil, the buried depth of sandy soils, thickness, soil particle difference（Flour sand, chiltern
Silt and clayey silt）Deng the principle for having considerable influence to contaminant transportation, according to silty soil, sand on the basis of above-mentioned subregion
I zoning is divided into three subprovinces by thickness：
I -1 area：Silty soil, sandy soils thickness are less than or equal to 5m；
I -2 area：Silty soil, sandy soils thickness are 5~10m；
I -3 area：Silty soil, sandy soils thickness are more than 10m.
b:IIth area
Superficial part clay distribution in soft clay area there is into Muddy Bottoms stickiness soil layer and part accompanies mealiness soil layer or silty sand ground wherein
Region division be IIth area, specifically fill stratum, crust layer, Muddy Bottoms stickiness soil layer and in the Muddy Bottoms stickiness soil layer
Part accompanies the region of mealiness soil layer or silty sand ground, due to Muddy Bottoms clay layer will block contaminant in the vertical direction move
Move, therefore IIth area is advantageous to the diffusion mobility of pollutant in the horizontal direction；The typical stratigraphic section for being illustrated in figure 3 IIth area shows
It is intended to, 3. 3. the in stratum has the in layer grey Muddy Bottoms silty clayFolderLayer grey silty soil, flour sand, therefore pollutant
Can be 3.FolderThe migration in horizontal direction is carried out in layer grey silty soil, flour sand.
In addition, cause soil nature different according to silty soil, the buried depth of sandy soils, thickness, soil particle difference（Flour sand, chiltern
Silt and clayey silt）Deng the principle for having considerable influence to contaminant transportation, on the basis of above-mentioned subregion according to 3.FolderLayer is named
IIth area is also divided into three subprovinces by difference：
II -1 area：3.FolderLayer is clayey silt；
II -2 area：3.FolderLayer is sandy silt；
II -3 area：3.FolderLayer is flour sand.
c：IIIth area
Be IIIth area by the region division that superficial part soil layer in soft clay area is stickiness soil layer, specifically fill stratum, crust layer and
The region of Muddy Bottoms stickiness soil layer, IIIth area are unfavorable for pollutant migration and diffusion；By taking District of Shanghai as an example, IIIth area is distributed mainly on mortise
The areas such as river river rising in Ningxia and flowing into central Shaanxi, Golden Bridge, it is cohesive soil within superficial part 20m, is unfavorable for contaminant transportation；It is illustrated in figure 4 the typical case in IIIth area
2. stratigraphic section schematic diagram, stratum include1The 3. 4. layer of layer grey Muddy Bottoms silty clay, the of the isabelline cohesive soil of layer, the
Grey Muddy Bottoms clay and is 5.1Layer grey clay, that is to say, that substantially all in the stratum in IIIth area is cohesive soil, dirty
Dye thing is unfavorable for the diffusion mobility in cohesive soil.
d：IVth area
By superficial part clay distribution in soft clay area have thick-layer it is plastic-area of hard plastic stickiness soil layer and the mealiness soil layer under it
Domain is divided into IVth area, specifically fill stratum, crust layer and thick-layer it is plastic-region of hard plastic stickiness soil layer, IVth area is unfavorable for dirt
Thing diffusion mobility is contaminated, wherein, thick-layer is plastic-and hard plastic stickiness the thickness of the layer is not less than 3m；By taking District of Shanghai as an example, IVth area is located at
6. Jinshan District, superficial part have thicker1Thickness layer is plastic-hard plastic stickiness clay distribution, is distributed with 6. under it2Layer silty soil.
Influence of the superficial part soil layer to contaminant transportation is considered, the whole inner city in District of Shanghai by mentioned above principle point
Into four subregions（Ith area, IIth area, IIIth area, IVth area）, wherein, Ith area and IIth area are further divided into some subprovinces, the stratigraphy assemblage of each subregion
It see the table below 1.
Table 1：District of Shanghai superficial part soil layer（Depth within below ground 20m）Typical soil layer assemblage province
（3）According to step（2）In area principle, as shown in figure 5, draw District of Shanghai environmental hydrogeology map section,
It should be noted that each subregion, i.e. Ith area, IIth area, IIIth area, IVth area, respectively with corresponding geographical position coordinates model
Enclose, in specific application, staff need to only input a geographical position coordinates, you can know that the divisional type of position is compiled
Number；
（4）According to the geographical position coordinates of contaminated site to be analyzed, pass through query steps（3）Middle drawn environmental hydrogeology
Map section, determines which subregion the stratum of the contaminated site present position to be analyzed belongs to, certain contaminated site to be analyzed
Can also across multiple subregions, known number of partitions in contaminated site to be analyzed and corresponding partition number it
Afterwards, according to the pollution source position in contaminated site to be analyzed, judge pollution range of the pollutant in contaminated site to be analyzed and
Depth.
Using certain industrial park of District of Shanghai as contaminated site to be analyzed, with chemical industry, medicine, spinning in the industrial park
Knit, based on the industrial land type such as light industry；It further investigation reveals that, underground water pollution in wide area, pollution type is mainly with organic contamination
Based on, contaminated area is about 270,000 m2, pollution depth is in regional area up to more than 10m, and because regional development needs, urgent need is carried out
Pollution control repair；Subregion first according to where the geographical position coordinates of the industrial park determine it, the industrial park
Block belongs to the area of environmental hydrogeology subregion II and IIIth area, compares upper table 1, and II areas superficial part has silty soil and sandy soil distribution, favorably
In the lateral transfer of pollutant, then superficial part is distributed without silty soil and sandy soil in III areas, mainly based on cohesive soil, is unfavorable for dirt
Contaminate the diffusion mobility of thing；If workshop（That is pollution sources）Positioned at II areas, then show that pollutant diffusive migration scope is in II
In the range of area, and pollution depth is mainly in the depth where silty soil and sandy soil layer, III areas due to unfavorable with cohesive soil
In the diffusion of pollutant, therefore it is substantially free of contaminants；If workshop（That is pollution sources）In III areas, then show to pollute
Thing diffusion mobility scope is confined to the top layer soil body in III areas, and due to being stopped by cohesive soil, pollutant is not to soil body depth model
Enclose diffusion mobility.On the basis of judging herein, with reference to the hydrogeological parameter of on-the-spot test acquisition, structure provincial characteristics hydrogeology
Database and hydrogeological form general model, it is later stage repairing and treating, there is provided instruct, also reduce the throwing of later stage research cost
Enter.
Claims (7)
- A kind of 1. environmental hydrogeology subregion application process for contaminated site, it is characterised in that the environmental hydrogeology point Area's application process comprises the following steps：Collect the environmental hydrogeology situation data of superficial part soil layer in soft clay area；According to described Environmental hydrogeology situation data, the soft clay area is divided into some subregions, number consecutively be Ith area, IIth area, IIIth area and IVth area, the soil body of each subregion can make the pollutant in it have ground respectively to specific direction diffusion mobility, each subregion Manage position coordinate value；According to the geographical position coordinates value of contaminated site to be analyzed, inquiry determines the contaminated site institute to be analyzed Subregion, according to the pollutant migration and diffusion direction rule in the subregion of place, judge pollutant in the Pollution Field to be analyzed Pollution range and depth in ground.
- 2. a kind of environmental hydrogeology subregion application process for contaminated site according to claim 1, its feature exist Superficial part clay distribution has fill stratum, crust layer, mealiness soil layer or silty sand ground and Muddy Bottoms stickiness in by the soft clay area The region division of soil layer is Ith area, and Ith area is advantageous to diffusion mobility of the pollutant on vertically and horizontally.
- 3. a kind of environmental hydrogeology subregion application process for contaminated site according to claim 1, its feature exist Superficial part clay distribution has fill stratum, crust layer, Muddy Bottoms stickiness soil layer and in the Muddy Bottoms in by the soft clay area The region division that mealiness soil layer or silty sand ground are locally accompanied in stickiness soil layer is IIth area, and IIth area is advantageous to pollutant and existed Diffusion mobility in horizontal direction.
- 4. a kind of environmental hydrogeology subregion application process for contaminated site according to claim 1, its feature exist The region division that superficial part clay distribution has fill stratum, crust layer and Muddy Bottoms stickiness soil layer in by the soft clay area is institute IIIth area is stated, IIIth area is unfavorable for pollutant migration and diffusion.
- 5. a kind of environmental hydrogeology subregion application process for contaminated site according to claim 1, its feature exist In by the soft clay area superficial part be distributed with fill stratum, crust layer and thick-layer it is plastic-region division of hard plastic stickiness soil layer For IVth area, IVth area is unfavorable for pollutant migration and diffusion, and the thick-layer is plastic-and hard plastic stickiness soil layer is more than 3m.
- 6. according to any described a kind of environmental hydrogeology subregion application process for contaminated site in claim 1-5, It is characterized in that the superficial part soil layer refers in below ground 20m depth bounds.
- 7. a kind of environmental hydrogeology subregion application process for contaminated site according to claim 1, its feature exist Can be across at least two subregions, according to the pollutant migration and diffusion in each subregion in the contaminated site to be analyzed The geographical position coordinates of direction rule and original pollution sources, judge pollution model of the pollutant in the contaminated site to be analyzed Enclose and depth.
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| CN112051385A (en) * | 2020-09-02 | 2020-12-08 | 王学森 | Environmental hydrogeological zoning application method for polluted site |
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