CN110045436A - A kind of accurate investigation method in solid waste stockpiling place - Google Patents
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- CN110045436A CN110045436A CN201910254512.3A CN201910254512A CN110045436A CN 110045436 A CN110045436 A CN 110045436A CN 201910254512 A CN201910254512 A CN 201910254512A CN 110045436 A CN110045436 A CN 110045436A
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
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Abstract
The invention belongs to field of environment engineering technology, and in particular to a kind of accurate investigation method in solid waste stockpiling place.A kind of accurate investigation method in solid waste stockpiling place, which is characterized in that it is investigated comprising first stage space enrironment, the investigation of second stage space enrironment, physical prospecting, the investigation of phase III space enrironment, environmental monitoring, drillhole validation, summarize and etc..Present invention introduces high-density electrics, and this method density of observation point is high, obtain informative, the electrical variation on both horizontally and vertically can be detected in detail, so that investigation process is more accurate.
Description
Technical field
The invention belongs to field of environment engineering technology, and in particular to a kind of accurate investigation side in solid waste stockpiling place
Method.
Background technique
Currently, investigating the site environment in solid waste stockpiling place, mainly by the way that " space enrironment technique for investigation is led
Then " method specified in (HJ 25.1-2014) and " industrial enterprise's space enrironment investigation and assessment and repair guide " and
What step carried out.Although disclosing a series of method of environmental surveys and assessment in two above file, it is for industry
When the indefinite place of solid waste volume of cargo in storage is investigated, since influence factor is more, therefore there are investigation result inaccuracy
Problem.Simultaneously as existing investigation method mostly uses the method for extensive statistics and analysis to obtain data, pass through acquisition
Data carry out the conclusion that analysis comparison finally obtains, investigation result and practical situation often have biggish difference.
Summary of the invention
It is an object of the present invention to solve the deficiency of the existing technology and provide a kind of data statistics, and accurate, investigation result can
The accurate investigation method in the solid waste stockpiling place leaned on.
The present invention is achieved by the following technical solution:
A kind of accurate investigation method in solid waste stockpiling place, comprises the following steps:
(1) first stage space enrironment is investigated: by data collection, the method for reconnaissance trip and personnel's interview, determining that solid is useless
Whether object stockpiling place has suspicious pollutant, and (2) are entered step if having, if without winding up a probe；
(2) second stage space enrironment is investigated: by the method for sampling analysis, determining the pollution species in solid waste stockpiling place
Class and concentration, and tentatively judge the space distribution situation of pollutant；
(3) pollution depth and harm geological structure physical prospecting: are determined using high-density electric and seismic refraction tomography；
A. high-density electric: it is situated between to underground for electric forming artificial electric field, the distribution of the artificial electric field and underground ground by electrode
The distribution of the apparent resistivity ρ s of matter is closely related, by the scanning survey to earth's surface different parts artificial electric field, obtains apparent resistance
Thus rate cross-section image understands the distribution of underground medium apparent resistivity ρ s, is inferred according to the distribution of underground medium apparent resistivity
The case where underground geologic bodies；
B. seismic refraction tomography comes: inverting is tracked by birefringence wave ray, building refracted wave speed chromatography at
As figure, thereby determine that at the size of Velocity anomalies, position and velocity of wave in geologic body, including field data acquisition and interior industry data
Reason, wherein interior industry data processing step is as follows:
B1. first break pickup: suitable ski-jump is selected；
B2. model is established: in conjunction with the detecting structure of geologic information and high-density electric, referring to survey line physical location and elevation, really
Determine the initial velocity model of tomographic inversion;
B3. ray tracing forward modeling: being handled using the refraction chromatography image-forming module of Geogiga company, by carrying out to model
Ray tracing, ray-tracing procedure used in program are based on Huygens and Fermat's principle, and critical path method (CPM) and curved is used in combination
Curved fire collimation method；Global shortest path is found with critical path method (CPM) first, then finds local optimum with curved rays method again；
B4. iterative inversion: given initial velocity, minimum initial velocity are given as 1km/s, and maximum initial velocity is given as 6km/s,
Velocity structure is heuristically descended according to first arrival time；
(4) phase III space enrironment is investigated: being determined by the method for inquiry data, field measurement and laboratory testing analysis solid
The Site characteristic parameter and receptor exposure parameter in body waste stockpiling place；
(5) environmental monitoring: the environmental change situation in periodic monitoring solid waste stockpiling place；
(6) drillhole validation: drillhole validation is carried out to the abnormal area of physical prospecting detection discovery, determines pollution situation；
(7) it summarizes: the data in conjunction with obtained in step (1) to (7), and solid waste stockpiling place surrounding enviroment are influenced to divide
Analysis obtains research conclusion.
The high-density electric uses E60DN high-density electric test macro, electrode spacing 3m, and data acquisition is no less than
30 layers.
The field data acquisition uses the S-Land total digitalization seismic prospecting data collecting system of Si Corporation, the U.S.,
Single acquisition station controls 36 reception channels, and 28Hz digitizes wave detector；Instrument parameter setting are as follows: sample rate 0.5ms, record length
For 512ms, track pitch 3m, port number 36.
The Site characteristic parameter includes place location weather, the hydrology, geologic feature information and data, soil pH
Value, bulk density, organic carbon content, moisture content and texture data.
The receptor exposure parameter includes the related letter of place and surrounding area Land-Use, crowd and building
Breath.
Pass through electrode when via High-density Resistivity Method to underground for electric forming artificial electric field, the distribution of the electric field and underground ground
The distribution of the apparent resistivity ρ s of medium is closely related.When measurement, AM=MN=NB=AB/3 is an electrode spacing, and A, M, N, B are same
Step moves right, and obtains the hatching of the first layer depth；Then AM, MN, NB increase an electrode spacing, A, M, N, B it is synchronous to
It moves right, obtains the hatching of the second layer depth；The rest may be inferred, is surveyed in this way by the scanning to earth's surface different parts artificial electric field
Amount, obtains apparent resistivity section diagram picture, thus the distribution of underground medium apparent resistivity ρ s is understood, according to underground medium apparent resistance
The case where explaining underground geologic bodies, is inferred in the distribution of rate.
Compared with prior art, the invention has the following beneficial effects: (1) present invention to survey in combination and environmental monitoring
The method of physical prospecting is introduced into wherein by journey, and whether contaminated place and pollution level and model can precisely be determined by having obtained one kind
The method enclosed；(2) present invention introduces high-density electrics, and this method density of observation point is high, obtain informative, can be in detail
Electrical variation in detection both horizontally and vertically, so that investigation process is more accurate；(3) by birefringence wave ray into
Row tracking inverting, constructs refracted wave topographic imaging by velocity figure, it is possible thereby to determine the size of geologic body middling speed degree anomalous body, position
It sets, the parameters such as velocity of wave.Refraction tomographic method obtains complicated underground structure by refracted wave first arrival, can solve longitudinal gradient and become
The problems such as velocity layer of change, strong horizontal velocity variation, large dip angle strata, latent layer, any hypsography.
Detailed description of the invention
Fig. 1 is that via High-density Resistivity Method electrode rolls and two dimensional cross-section records data arrangement schematic diagram.
Fig. 2 is field process schematic diagram.
In figure: 1- wave detector, 2- firing line, 3- seismic detector host, the big line of 4- instrument.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples, but protection scope of the present invention is not by embodiment
It is limited.
Embodiment 1
A kind of pair of Tengchong County electricity Xin factory 2#Slag library slag reserves and the unfavorable geologic bodies such as bottom storehouse buried depth of bedrock and geological structure
Detection, is carried out the work using the comprehensive geophysical prospecting methods such as high-density electric and seismic refraction tomography.
(1) first stage space enrironment is investigated: by data collection, the method for reconnaissance trip and personnel's interview, being determined solid
Whether body waste stockpiling place has suspicious pollutant, and (2) are entered step if having, if without winding up a probe；
(2) second stage space enrironment is investigated: by the method for sampling analysis, determining the pollution species in solid waste stockpiling place
Class and concentration, and tentatively judge the space distribution situation of pollutant；
By above two step, obtain following information: landforms category shallowly cuts the low gentle slope Zhong Shan landforms, microrelief performance on the region of place
It is recent volcano rock distributed area for slag tableland geomorphic type.Site elevation 1890m, 15 ° of the physical relief gradient~
25. °, away from Ma'an Mountain volcanic crater about 500m, volcanic crater and volcano cone shape are more apparent, slag tableland from volcanic crater around
Low dip, wavy of having therebetween rise and fall, and height difference is generally less than 10m, and earth's surface rises abruptly stone base heap throughout ups and downs.
Stratum earth's surface is the 4th layer of layer of plants (Q in placepd), under be Quaternary Period Holocene volcanic rocks (Q4 2b), saddle of being born in the year of horse
The component part of mountain volcanic cone is that pyroclastic tephra and lava alternating layers are accumulated.Rock type is volcanic ash, andesite basalt and fire
Mountain dust.
4th layer of layer of plants (Qpd): for root system of plant, thickness 0.6m.
Volcanic ash: yellow-gray, grey black, it is soft, contain a small amount of andesite rubble.It sporadicly is distributed in earth's surface and top, is had
High-compressibility, general thickness are 0.6m ~ 1.2m.
Volcano dust: yellow-gray, grey are mainly made of andesite clast, 25 ~ 70mm of general gravel diameter, big to reach
150mm, angular, size mix, the volcanic ash of filling about 30% ~ 35%, loose ~ slightly close.Fill it is not close, locally have 5cm ~
The cavity of 20cm, water penetration are strong.
Andesite basalt: black, cryptocrystalline texture, gas cavernous structure, thickness about 20m.The layer is slag, in hidden
Lava is lied prostrate by output, is distributed in earth's surface 1.2m ~ 5.1m hereinafter, rock stomata gathers, it is few to fill based on the 2mm ~ 5mm of aperture.Rock
Cranny development in stone, big portion are filled by yellow volcanic ash.Rock is hard, is in block stone shape output.
General volcanic ash is distributed in earth's surface and top, and volcano dust and andesite are in alternating layers of varying thickness, partially visible
Volcano dust layer is in lenticular body shape output, and equally illustrates this case according to scene drilling sample situation.
The bright and clear river in place west side and the Dayingjiang River of southeast side will be where places with riverbed for minimum etch datum level
Lava plateau segmentation is independent geohydrologic unit.The high south in unit north is low, and underground water diameter direction is generally flowed by north orientation south.
It is secondly local to flow through based on northern Shang Zhuan, old tortoise slope, bat hole, Ma'an Mountain one feed with for feeding area, with Atmospheric precipitation
Impregnation is given under rainwash.Stomata, crack, cavity in tephre and lava bed etc., scale is different, but connectivity pole
It is good, good condition is created for supply, migration, the excretion of underground water.The following are discharge area of groundwaters for southern lotus pond, in tableland
It is huge that the steep cliff edge to be formed centralized discharge, flow in the form of big spring are cut by bright and clear river and Dayingjiang River.
Without rainwash, surface water and spring in place.On region hydrogeology unit, the benefit of place water located underground
To area and runoff area.Groundwater type belongs to Bedrock Crevice Water in place, shows as basaltic rocks hole crevice water, and atmosphere drops
Water supply, Atmospheric precipitation part enter underground, recharge groundwater by evaporation discharge, partial penetration.Place Groundwater buried depth compared with
It is deep, according in drilling depth control range in " geotechnical engineering investigation of test block administration commission office building is reported ", in 12m ~ 20m or less
There is not yet underground water.Place groundwater flow direction is flowed from east to west, mainly the bright and clear river excretion in south westwards.
Tengchong County is in famous blueness, hiding, Yunnan, Burma, huge " bad " the western branch middle section of glyph construction system of Indonesia and radial structure
The compound position of system is made, tectonic basic framework is formd with one Nan Xixiang arc structure of east northeast and N-s-trending Tectonics,
Tengchong County is in the middle part of the one Lianghe arcuate tectonic belt of Tengchong in above-mentioned tectonic system.
One Lianghe arcuate tectonic belt of Tengchong is broken from the east of Longchuan, and west to Dayingjiang fault, the dispersion of distribution is greater than 20Km.The band
It is formed by one group of curviplanar fracture and by the volcanic rock, magmatic rock and metamorphic rock of genetic relation, Neogene system, the accumulation of the 4th system are aobvious
Strip or crescent bending are shown, due to the variation of structural feature curvature, mechanical characteristics are also different.Main fault is
The pressure property turned round, continuity is poor, is opened, shear fracture bad break more；And middle section is position at the top of the arc of arc structure, stress compares collection
In, radial shear fracture is relatively developed, and leads to magmatic rock frequent activity of new generation, and repeatedly erupt, area is larger, with Tengchong
One one line of mountain is the most typical.
Place is close to Dayingjiang fault side between Longchuanjiang and Dayingjiang fault, and Dayingjiang fault is in place location
In latent shape, top is quaternary volcanic rocks covering.Dayingjiang fault is to the south to be beaten Ying Shan, old tortoise North gets military camp street, Gu Dong
Slope substantially in the arc convex to east southeast, is discontinuously distributed along stretching along Dayingjiang River, more than 140 Km is about in area, belong in arcuate tectonic belt
Play the first grade structure of controlling.Plane of disruption general inclination northwest (NW), based on steep dip, the visible allochite of structural plane, sericite
Iso-stress mineral；Side, which is shown in, squeezes lenticular body, scrunch and the extensional of derivation, the property turned round crack.It is influenced by Dayingjiang fault, along fracture
Band has a string in volcanic crater of the north north east to distribution, wherein being recently saddle away from place near Tuan Shan, big empty mountain to Tengchong
Mountain fire mountain pass, linear distance only 500m.
Slag library place is in slag tableland location, and terrain slope is little, and stratum is mainly Quaternary Volcanic Activities shape
At slag and volcano dust, the epoch are newer, and rate of decay is low.Due to slag and volcano dust tool vesicular structure and
Cranny development is seeped under the surface water such as atmospheric precipitation and is exceedingly fast, and earth's surface is without perennial stream.Therefore, denudation is faint in area, and earth's surface is planted
Luxuriant, covering is good, the baleful geological processes agensis such as coombe, avalanche and landslide.
The baleful geological processes such as avalanche, landslide and mud-rock flow are not found in the geologic survey of place.
The location of this quasi- detection, basement rock lithology is mainly basalt, belongs to hard rock, and resistivity is higher in 100 Ω m
~ 10000 Ω m, longitudinal wave velocity are greater than 4.5km/s, for superficial part zinc ore slag because containing minerals, and relative loose, it is electric
Resistance rate is usually expressed as low-resistivity, low velocity of wave, and intact basement rock shows as high resistivity and high velocity of wave, therefore intact basement rock and mine
There are apparent resistivity and velocity of wave difference between slag, meets the earth of high-density electric and shallow seismic refraction wave tomography
Physical premises.
(3) pollution depth and poorly texture physical prospecting: are determined using high-density electric and seismic refraction tomography
It makes；
High-density electric
(1) basic principle
The scope for belonging to resistivity method in high-density electric principle is a kind of geophysical prospecting method of array arrangement, also referred to as automatic resistance
Rate system, is the development of DC electrical method, and function is equivalent to the combination of quadrupole electric sounding and electrical profiling method.This method observation point is close
Degree is high, obtains informative, can detect the electrical variation on both horizontally and vertically in detail.
Pass through electrode when detection to underground for electric forming artificial electric field, the distribution of the electric field and the view electricity of underground rock soil medium
The distribution of resistance rate ρ s is closely related.When measurement, AM=MN=NB=AB/3 is an electrode spacing, and A, M, N, B, which are synchronized, to move right,
Obtain the hatching of the first layer depth；Then AM, MN, NB increase an electrode spacing, and A, M, N, B, which are synchronized, to move right, and obtains
The hatching of second layer depth；The rest may be inferred, in this way by the scanning survey to earth's surface different parts artificial electric field, obtains view electricity
Thus resistance rate cross-section image understands the distribution of underground medium apparent resistivity ρ s, is pushed away according to the distribution of underground medium apparent resistivity
Disconnected the case where explaining underground geologic bodies.Via High-density Resistivity Method electrode rolls and two dimensional cross-section record data arrangement schematic diagram is shown in figure
1。
(2) operating technology
High-density electric section in implementation, all checks every electrode using the arrangement arrangement of 3m electrode spacing.
Instrument uses E60DN high-density electric test macro, electrode spacing 3m, urethane acrylate anionomer or this imperial Burger device, data
No less than 30 layers of acquisition.
Seismic refraction tomography
(1) basic principle
It is tracked inverting by birefringence wave ray, constructs refracted wave topographic imaging by velocity figure, it is possible thereby to determine geologic body
The parameters such as size, position, the velocity of wave of middle Velocity anomalies.Refraction tomographic method obtains complicated underground by refracted wave first arrival
Structure can solve velocity layer, strong horizontal velocity variation, large dip angle strata, the latent layer, any landform of longitudinal change of gradient
The problems such as fluctuating.
(2) field process method
Field data acquisition uses the S-Land total digitalization seismic prospecting data collecting system of Si Corporation, the U.S., single acquisition station
36 reception channels are controlled, 28Hz digitizes wave detector.Instrument parameter setting: sample rate 0.5ms, record length 512ms, 3 meters
Track pitch, 36 channels.Field process schematic diagram is shown in Fig. 2.
(3) interior industry data processing
It is as follows that interior industry data processing step is imaged in refraction chromatography:
First break pickup: the correct pickup of first arrival is the key that refraction chromatography invertion work, and the identification of ski-jump is first break pickup
Where difficult point.
Establish model: in conjunction with geologic information and other geophysical prospecting methods, referring to survey line physical location and elevation, it is determined that chromatography
The initial velocity model of inverting.
Ray tracing forward modeling: it is handled using the refraction chromatography image-forming module of Geogiga company.The key of method is pair
Model carries out ray tracing, and ray-tracing procedure used in program is based on Huygens and Fermat's principle, shortest path is used in combination
Shot and curved rays method.Global shortest path is found with critical path method (CPM) first, then finds part with curved rays method again
It is optimal.
Iterative inversion: the essence of refraction chromatography imaging is inverting, i.e., heuristically descends velocity structure according to first arrival time.Into
Before row inverting, initial velocity model is given, according to the geological model designed, designed of this engineering ground initial velocity model, most
Small speed preset 1km/s or so, maximum speed gives 6km/s.Number of nodes in grid cell size and element sides is related to instead
The accuracy and speed drilled.
(4) phase III space enrironment is investigated: the method by inquiry data, field measurement and laboratory testing analysis is true
The Site characteristic parameter and receptor exposure parameter in fixed solid waste stockpiling place；
(5) environmental monitoring: the environmental change situation in periodic monitoring solid waste stockpiling place；
(6) drillhole validation: drillhole validation is carried out to the abnormal area of physical prospecting detection discovery, determines pollution situation；
(7) it summarizes: the data in conjunction with obtained in step (1) to (7), and solid waste stockpiling place surrounding enviroment are influenced to divide
Analysis obtains research conclusion.
The Site characteristic parameter includes place location weather, the hydrology, geologic feature information and data, soil pH
Value, bulk density, organic carbon content, moisture content and texture data.
The receptor exposure parameter includes the related letter of place and surrounding area Land-Use, crowd and building
Breath.
Claims (5)
1. a kind of accurate investigation method in solid waste stockpiling place, which is characterized in that comprise the following steps:
(1) first stage space enrironment is investigated: by data collection, the method for reconnaissance trip and personnel's interview, determining that solid is useless
Whether object stockpiling place has suspicious pollutant, and (2) are entered step if having, if without winding up a probe；
(2) second stage space enrironment is investigated: by the method for sampling analysis, determining the pollutant in solid waste stockpiling place
Type and concentration, and tentatively judge the space distribution situation of pollutant；
(3) pollution depth and harm geological structure physical prospecting: are determined using high-density electric and seismic refraction tomography；
A. high-density electric: it is situated between to underground for electric forming artificial electric field, the distribution of the artificial electric field and underground ground by electrode
The distribution of the apparent resistivity ρ s of matter is closely related, by the scanning survey to earth's surface different parts artificial electric field, obtains apparent resistance
Thus rate cross-section image understands the distribution of underground medium apparent resistivity ρ s, is inferred according to the distribution of underground medium apparent resistivity
The case where underground geologic bodies；
B. seismic refraction tomography comes: inverting is tracked by birefringence wave ray, building refracted wave speed chromatography at
As figure, thereby determine that at the size of Velocity anomalies, position and velocity of wave in geologic body, including field data acquisition and interior industry data
Reason, wherein interior industry data processing step is as follows:
B1. first break pickup: suitable ski-jump is selected；
B2. model is established: in conjunction with the detecting structure of geologic information and high-density electric, referring to survey line physical location and elevation, really
Determine the initial velocity model of tomographic inversion;
B3. ray tracing forward modeling: being handled using the refraction chromatography image-forming module of Geogiga company, by carrying out to model
Ray tracing, ray-tracing procedure used in program are based on Huygens and Fermat's principle, and critical path method (CPM) and curved is used in combination
Curved fire collimation method；Global shortest path is found with critical path method (CPM) first, then finds local optimum with curved rays method again；
B4. iterative inversion: given initial velocity, minimum initial velocity are given as 1km/s, and maximum initial velocity is given as 6km/s,
Velocity structure is heuristically descended according to first arrival time；
(4) phase III space enrironment is investigated: being determined by the method for inquiry data, field measurement and laboratory testing analysis
The Site characteristic parameter and receptor exposure parameter in solid waste stockpiling place；
(5) environmental monitoring: the environmental change situation in periodic monitoring solid waste stockpiling place；
(6) drillhole validation: drillhole validation is carried out to the abnormal area of physical prospecting detection discovery, determines pollution situation；
(7) it summarizes: the data in conjunction with obtained in step (1) to (7), and solid waste stockpiling place surrounding enviroment are influenced
Analysis obtains research conclusion.
2. a kind of accurate investigation method in solid waste stockpiling place according to claim 1, which is characterized in that described
High-density electric uses E60DN high-density electric test macro, electrode spacing 3m, and data acquisition is no less than 30 layers.
3. a kind of accurate investigation method in solid waste stockpiling place according to claim 1, which is characterized in that described
Field data acquisition uses the S-Land total digitalization seismic prospecting data collecting system of Si Corporation, the U.S., single acquisition station control
36 reception channels, 28Hz digitize wave detector；Instrument parameter setting are as follows: sample rate 0.5ms, record length 512ms, track pitch are
3m, port number 36.
4. a kind of accurate investigation method in solid waste stockpiling place according to claim 1, which is characterized in that described
Site characteristic parameter includes place location weather, the hydrology, geologic feature information and data, soil pH value, bulk density, organic carbon
Content, moisture content and texture data.
5. a kind of accurate investigation method in solid waste stockpiling place according to claim 1, which is characterized in that described
Receptor exposure parameter includes the relevant information in place and surrounding area Land-Use, crowd and building.
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Inventor after: Ji Chenggang Inventor after: Wu Wenwei Inventor after: Shang Jiangtao Inventor after: Bi Tingtao Inventor after: Zhang Tao Inventor after: Wang Jinhua Inventor after: Wu Mina Inventor after: Zhou Man Inventor before: Wu Wenwei Inventor before: Ji Chenggang Inventor before: Shang Jiangtao Inventor before: Bi Tingtao Inventor before: Zhang Tao Inventor before: Wang Jinhua Inventor before: Wu Mina Inventor before: Zhou Man |
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Application publication date: 20190723 |