CN102156153A - Method for detecting impervious lining layer of garbage land-filling pool - Google Patents
Method for detecting impervious lining layer of garbage land-filling pool Download PDFInfo
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- CN102156153A CN102156153A CN 201110033556 CN201110033556A CN102156153A CN 102156153 A CN102156153 A CN 102156153A CN 201110033556 CN201110033556 CN 201110033556 CN 201110033556 A CN201110033556 A CN 201110033556A CN 102156153 A CN102156153 A CN 102156153A
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Abstract
The invention relates to a technology for garbage land-filling treatment, in particular to a method for detecting completeness and continuity of an impervious lining layer of a garbage land-filling pool in the garbage land-filling process. The method is characterized in that detection is performed after the impervious lining layer and a buffering material above the impervious lining layer are laid; the impervious lining layer is destroyed mainly because of acting force of the weight of mechanical equipment on a part of the impervious lining layer in the process of laying the buffering material, i.e. clays, gravels and the like, or the impervious lining layer is destroyed by sharp foreign matters in the buffering material, or the impervious lining layer is destroyed due to improper construction operations. Therefore, the condition of the impervious lining layer in the working condition can be truly reflected by detection of the completeness and the continuity of the impervious lining layer at the time, a detected result is truer, more reliable and more credible, and the reliability and the safety of garbage land-filling treatment are greatly improved. Remarkable technical advancements are achieved in the improved detection method in the field of garbage land-filling treatment without increasing or increasing a few construction cost.
Description
Technical field
The present invention relates to the garbage loading embeading treatment technology, specifically is exactly in a kind of garbage loading embeading process, detects integrity, the successional method of the antiseepage lining in garbage loading embeading pond.
Background technology
Along with the quickening of city of the world's process, the urban population ratio increases suddenly, lower, the populous country of especially Chinese such urbanization rate, urban population sharp increase.This just directly causes the surge of domestic waste.
Existing technology of garbage disposal mainly is landfill method, burning method.Burning method causes serious secondary pollution because can produce a large amount of poisonous and harmful flue gas etc., so its scope of application is little, treatment capacity is few.Prevailing still landfill disposal.
Garbage loading embeading is handled and will be avoided environment is polluted, and just must prevent that the percolate after the garbage decomposition is penetrated in the ambient soil.Normally utilize impervious material in the landfill pond, to weld in the prior art or antiseepage lining 5 bonding or heat seal formation continuous whole, antiseepage lining 5 is the composite geo-membrane or the similar impervious material of water proof normally, this antiseepage lining 5 is just isolated with rubbish on it and ambient soil, the percolate of rubbish can concentrate on the short position of antiseepage lining 5, collect then and carry out harmless processing, avoid contaminated environment.
In order to make antiseepage lining 5 solid reliable, as shown in Figure 1, usually on soil 7, entirely lay earlier one deck clay 6, be being laid on the ambient soil 7 that antiseepage lining 5 can be smooth so on the one hand, smooth in addition soil 7 and clay 6 cushion, disperse the pressure of rubbish to antiseepage lining 5, make that antiseepage lining 5 is stressed even, improve its serviceable life; Certainly, when soil 7 own soil properties at the scene are fit to, also can after levelling of the land, directly lay antiseepage lining 5.Re-lay clay seam 4 and metalling 3 above the antiseepage lining 5 and then geotextile 2 is set, the pending rubbish 1 of ability landfill above the geotextile 2, clay seam 4, metalling 3 and geotextile 2 all are in order to cushion and to disperse pressure from the top, can be general become padded coaming; The pressure of plant equipment such as employed shovel loader and the pressure that rubbish itself produces can evenly be delivered on the antiseepage lining 5 lenitively during garbage loading embeading like this, make antiseepage lining 5 be in good stress, be convenient to its use lasting; Slit between the particle of metalling 3 itself also is used for percolate flows, and is convenient to percolate centralized collection and processing.
In the prior art in the work progress of garbage loading embeading pond, promptly detect its integrity and continuity after normally 5 layings of antiseepage lining being finished, detection method commonly used is exactly the electrode method, its principle mainly is when antiseepage lining 5 is intact, its upper surface and ambient soil lower surface are that insulation is nonconducting, if the somewhere is destroyed or leaky, then near the antiseepage lining 5 material upper surfaces its corrupted point and the soil of lower surface just have certain conductive capability, by detecting its conductive capability, can detect the corrupted point and repair; Determine to lay padded coamings such as clay seam 4, metalling 3 and geotextile 2 after intact, then landfill waste.
But adopt many garbage loading embeadings pond of existing technology the percolate seepage all to occur, pollute surrounding soil, the phenomenon of stinking to high heaven.And because rubbish landfill can't itself be repaired the landfill pond, so the seepage phenomenon almost can't be eradicated again.And when percolate being collected and handling in periphery, landfill pond, because the percolate of seepage is that the soil all directions spread continuously towards periphery, therefore the percolate of collecting seepage is extremely difficult, and can't all collect and handle, must a shielding system bigger because will all collect the percolate of seepage than landfill pond, and this can't realize in the engineering angle at all.
Therefore visible detection of the prior art does not truly reflect the situation of antiseepage lining 5 objectively, and demand urgently in existing landfill technology and the landfill process this area, and the detection technique of construction is improved, to improve the reliability of landfill disposal.
Summary of the invention
Fundamental purpose of the present invention provides the detection method of the antiseepage lining in a kind of more reliable garbage loading embeading pond.
For achieving the above object, the technical solution adopted in the present invention is: the detection method of a kind of garbage loading embeading pond antiseepage lining is characterized in that: described detection be the antiseepage lining and above padded coaming carry out after laying.
Technique scheme that is to say it is before garbage loading embeading, padded coamings such as antiseepage lining and the clay on it and/or rubble and/or geotextile are laid part or are laid to finish and afterwards the antiseepage lining is detected, to determine the integrity and the continuity of antiseepage lining.Its advantage is: the why destroyed still main because padded coaming of antiseepage lining, just in the process of deployment such as clay, rubble the weight of plant equipment to the acting force of antiseepage lining part; Perhaps the sharp-pointed foreign matter in the padded coaming has destroyed the antiseepage lining; The perhaps improper antiseepage lining that destroyed of constructing operation, engage when for example laying the antiseepage lining not firm, or the artificial antiseepage lining etc. of accidentally injuring when laying clay.This just is different from the prior art processing quality of the detection of antiseepage lining in fact just only having been considered laying constructions such as the bonding or heat seal of antiseepage lining itself, and does not notice the destruction that follow-up construction may cause the antiseepage lining.Therefore, the integrity of detection antiseepage lining of the present invention and continuity could the real situations that reflects antiseepage lining under the duty.Such testing result is truer, that is to say more reliable, more objective, credible.
Can repair immediately if the antiseepage lining has unusually then because the thickness of padded coaming is usually only at several centimetres to tens centimetres, so be easy to realize when repairing the antiseepage lining this moment, repair finish after landfill waste again.Because after padded coaming is laid and is finished, buffering that padded coaming is risen to external world and peptizaiton, in the process of follow-up landfill waste, the ruined possibility of antiseepage lining does not almost have.Therefore, increase and detect operation so together, perhaps original detection operation is replaced with detection operation of the present invention, if any unusually just repairing, just can guarantee the integrity and the continuity of antiseepage lining, avoid the seepage of percolate, reliability, the security of landfill disposal improve greatly, such detection method is improved and has been obtained significant technical progress in the garbage loading embeading process field, and don't increases or seldom increase construction cost.
Description of drawings
Fig. 1 is the structural representation in garbage loading embeading pond.
Embodiment
For example in building as shown in Figure 1 garbage loading embeading pond process, brief for the sake of simplicity the present invention, the thickness proportion of having dwindled garbage loading embeading thing 1, the thickness proportion of having given prominence to antiseepage lining 5 and buffering material introduced among the figure.At first smooth place, just with the ambient soil 7 smooth good clays 6 of laying afterwards, lay antiseepage lining 5 then, and then on antiseepage lining 5, lay padded coaming, padded coaming is for example by illustrated clay seam 4, metalling 3, the geotextile 2 of being followed successively by, perhaps only get part wherein or select other padded coaming, landfill waste again after padded coaming is laid and finished according to execution conditions.
To the integrity and the continuity of antiseepage lining 5 be detected in the work progress, if any keeping in repair as prior art with regard to needs unusually, but improve and just to be: existing detection to antiseepage lining 5 be after its laying is finished, padded coaming do not detect when also laying at once, and the present invention to be antiseepage lining 5 and the padded coaming on it lay detects after partly or entirely finishing, detect after preferably laying clay seam 4, metalling 3.
Can repair immediately if antiseepage lining 5 has unusually then because the thickness of padded coaming is usually only at several centimetres to tens centimetres, so be easy to realize when repairing antiseepage lining 5 this moment, repair finish after landfill waste again.Even antiseepage lining 5 is destroyed by the acting force of the weight of plant equipment to antiseepage lining part in process of deployment such as clay, rubble like this, the sharp-pointed foreign matter that perhaps is cushioned in the material destroys, perhaps improper destroyed because of constructing operation, can both in time be repaired, guarantee that it is excellent.When other padded coaming of follow-up laying or rubbish, because buffering and peptizaiton that padded coaming is risen to external world, the ruined again possibility of antiseepage lining 5 is very little.Therefore, by the improvement to the integrity and the successional detection method of antiseepage lining 5, reliability, security that garbage loading embeading is handled are significantly improved, and have avoided the percolate seepage and the danger of contaminated environment; Simultaneously do not increase or seldom increase construction cost again.Significant technique effect and technical progress have promptly been obtained with small improvement.
The present invention to the detection of antiseepage lining 5 be can: in the time of any after having laid the partial buffer material at least, before the garbage loading embeading or only carry out a small amount of rubbish of landfill the time.
Detection to antiseepage lining 5 is carried out after having laid the partial buffer material, has had after the certain thickness padded coaming, and the probability that foreign matter in the padded coaming and plant equipment etc. are destroyed antiseepage lining 5 just obviously descends, and its improvement effect can be clearly.Perhaps can detect after laying, because geotextile 2 itself is permeable, so even destruction geotextile 2 does not have adverse consequences yet when detecting in clay seam 4 and metalling 3, geotextile 2.Can also be to carry out after having laid a small amount of rubbish, the obstruction repair gets final product so long as not rubbish is too dark.
Preferably described padded coaming comprises clay seam 4 and metalling 3 from down to up successively, and described detection is laid at clay seam 4 and metalling 3 and carried out after finishing.After clay seam 4 and metalling 3 were laid and finished, its protective effect to antiseepage lining 5 was just very abundant, just can play the best techniques effect so detect this moment; Its thickness is not too dark again, is convenient to detect and maintenance antiseepage lining 5.
As for detection method, numerous embodiments is also arranged: for example, adopt existing electrode method to detect, only this moment is because antiseepage lining 5 tops have covered padded coaming, so when detecting, padded coaming need be pushed aside a small gap, because detect and the garbage pool subregion can be adopted a detection, so such detection does not bother yet.Perhaps the sensor with checkout equipment is arranged on the inserted link, need not push padded coaming like this aside also can utilize inserted link that sensor is touched on the antiseepage lining 5 to detect, because the thickness of padded coaming is all made by design and construction, the testing staff can be easy to grasp insertion depth, so such detection is still simple and convenient.
But preferably adopt the method for humidity comparison and detection, just described detection comprises the humidity of materials above and/or under the detection antiseepage lining, analyzes the testing result of humidity then and determines whether the antiseepage lining is intact.
Its principle is exactly: intact, continuous antiseepage lining 5 integral body are with the garbage pool internal insulation of ambient soil 7 and antiseepage lining 5 tops, like this garbage pool inside everywhere clay or the humidity of rubble be continuous distribution, do not have step or sudden change, just the position humidity that sea level elevation is low more usually is big more, and the local humidity of closing on the water source more is big more.The ambient soil 7 of antiseepage lining 5 belows also is the same reason with the moisture distribution of clay 6.When the antiseepage lining 5 at certain position is damaged, antiseepage lining 5 top overall humidity are big, water body seepage downwards so, near the leak source clay 6 and the remarkable humidity of soil 7 humidity meeting greater than surrounding environment, the clay seam 4 of antiseepage lining 5 tops, metalling 3 are because dry out, its humidity again will be less than clay seam 4, metalling 3 humidity on every side, therefore no matter be the humidity of materials that detects antiseepage lining 5 tops, or below humidity of materials or both detect, comparative analysis by humidity, can both find the position of seepage, and then repair.
Perhaps antiseepage lining 5 belows because of underground water table enrich humidity very big and greater than its top material humidity the time, its infiltration direction opposite, just water can be seeped into clay seam 4, the metalling 3 from the clay 6 and the soil 7 of antiseepage lining 5 belows.But its detection also is the same, as long as find the sudden change of clay seam 4, metalling 3 humidity of materials, can determine that antiseepage lining 5 may wreck, and must push clay seam 4 aside, metalling 3 is checked.
As for the humidity that how to detect antiseepage lining 5 upper and lower materials, then a lot of prior aries can both be accomplished, detect such as the sample of directly getting its top material; Material for antiseepage lining 5 belows can with the pin hole on the adhesive reparation antiseepage lining 5, perhaps adopt no triage such as ultrasound wave, nuclear magnetic resonance to survey means with a small amount of sampling method of probe then.
When usually detecting earlier to the garbage loading embeading pond with horizontal ordinate subregion, the contrast coordinate points detects, in order to avoid omission, dot spacing is according to the size of garbage pool and suspicious factor settings such as seepage situation, usually between 0.5-5m, suspicious more location detection point is close more, perhaps earlier rough the detection, and discovery is can the position intensive again adopts a detection.
Preferably described detection to humidity utilizes seepage searching instrument to carry out.And Humidity Detection is to utilize seepage searching instrument to detect the soil 7 of antiseepage lining 5 bottoms or the humidity of clay 6.Because antiseepage lining 5 bottoms are enclosed environments of isolated basically external condition, therefore, the humidity of its soil 7 or clay 6 is relatively stable, when leaking into antiseepage lining 5 bottoms as rainwater or percolate, the humidity of soil 7 and clay 6 change understand more obvious.Simultaneously this also be consider refuse landfill usually can the spot under the dilutional hyponatremia reverse osmosis determine to the experience of antiseepage lining 5.Can also be that described Humidity Detection is behind the rain or waters and carry out afterwards.Usually because the such extensive construction in garbage loading embeading pond all need be for a long time, so the scene has all lived through rainfall usually when detecting, directly detection gets final product.But consider that under situations such as the extreme drought humidity of materials of antiseepage lining about in the of 5 may almost consistent situation, still can adopt the method for watering, water certainly and rainfall after be to wait for a period of time, treat the water body seepage.Perhaps under normal circumstances also can suitably water or by the time detect behind the rain, can increase the difference degree of humidity of materials like this, be convenient to detect.
As for described its principle of work of seepage searching instrument is to carry out the electrical impedance test, the different humidity of materials that detect of its electrical impedance of material according to different humidity, the low frequency that sends by the probe that is provided with on the instrument base during test, harmless signal, when signal passes the measured material surface, be deep into material internal, the darkest 75mm that reaches of detectable signal.The depth location at the material place of Tan Ceing is as required selected the power gear of equipment, and the signal that equipment sent can detect the humidity of materials numerical value of respective depth.Detection does not injure antiseepage lining 5 like this, does not need to push aside padded coaming etc. yet, so its operation is very simple, and accuracy of detection is also very high.Especially be fit to the present invention after laying padded coaming to antiseepage lining 5 detection.
Claims (6)
1. the detection method of a garbage loading embeading pond antiseepage lining is characterized in that: described detection be the antiseepage lining and above padded coaming carry out after laying.
2. the detection method of a kind of garbage loading embeading pond antiseepage lining according to claim 1, it is characterized in that: described detection comprises the humidity of materials above and/or under the detection antiseepage lining, determines according to the unexpected variation of humidity of materials whether the antiseepage lining is intact then.
3. the detection method of a kind of garbage loading embeading pond antiseepage lining according to claim 2 is characterized in that: described detection utilizes seepage searching instrument to carry out.
4. the detection method of a kind of garbage loading embeading pond antiseepage lining according to claim 3 is characterized in that: described detection is to detect the soil of antiseepage lining bottom or the humidity of clay.
5. the detection method of a kind of garbage loading embeading pond antiseepage lining according to claim 2 is characterized in that: described detection is that clay seam on the antiseepage lining and metalling are laid and carried out after finishing.
6. according to any described a kind of garbage loading embeading disposal route in the claim 2 to 5, it is characterized in that: described Humidity Detection is behind the rain or waters and carry out afterwards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110033556 CN102156153A (en) | 2011-01-30 | 2011-01-30 | Method for detecting impervious lining layer of garbage land-filling pool |
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| CN 201110033556 CN102156153A (en) | 2011-01-30 | 2011-01-30 | Method for detecting impervious lining layer of garbage land-filling pool |
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| CN102156153A true CN102156153A (en) | 2011-08-17 |
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| CN 201110033556 Pending CN102156153A (en) | 2011-01-30 | 2011-01-30 | Method for detecting impervious lining layer of garbage land-filling pool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768681A (en) * | 2016-11-29 | 2017-05-31 | 武汉地大物探遥感有限公司 | A kind of refuse landfill monitoring of leakage system based on Internet of Things |
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2011
- 2011-01-30 CN CN 201110033556 patent/CN102156153A/en active Pending
Patent Citations (6)
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| WO1988006929A1 (en) * | 1987-03-20 | 1988-09-22 | Renovadan System Transport A/S | A bed structure for deposition of refuse and other waste materials |
| US4947470A (en) * | 1989-02-14 | 1990-08-07 | Southwest Research Institute | System for locating leaks in a geomembrane-lined impoundment or landfill filled with material |
| DE19914658A1 (en) * | 1999-03-31 | 2000-11-16 | Ulrich Kuipers | Detection and locating of leaks of conducting liquids, especially water, in flat sealing surfaces, e.g. flat roofs, by use of a resistive layer behind the sealing layer and a mesh type connection of conductors with ammeters |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106768681A (en) * | 2016-11-29 | 2017-05-31 | 武汉地大物探遥感有限公司 | A kind of refuse landfill monitoring of leakage system based on Internet of Things |
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Application publication date: 20110817 |