CN105784280A - Slope seepage positioning method of regulating reservoir monitoring - Google Patents
Slope seepage positioning method of regulating reservoir monitoring Download PDFInfo
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- CN105784280A CN105784280A CN201610325792.9A CN201610325792A CN105784280A CN 105784280 A CN105784280 A CN 105784280A CN 201610325792 A CN201610325792 A CN 201610325792A CN 105784280 A CN105784280 A CN 105784280A
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- seepage
- regulating reservoir
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- side slope
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
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Abstract
The invention discloses a slope seepage positioning method of regulating reservoir monitoring. According to the method, only monitoring sensors are required to be installed at the bottom of a regulating reservoir. When a monitoring system sends a regulating reservoir seepage alarm, and after determining that the seepage region is not within a multiple sensor region range of the regulating reservoir bottom, the water level of the regulating reservoir is lowered through pumping or other methods. During the process of water level descending, monitoring system sensor signal comparison is performed in certain water head intervals until the water in the regulating reservoir descends to a certain level and the sensor seepage alarm is cleared. Meanwhile, the regions between the last seepage alarm clearing and the last seepage alarm of the last seepage are detected by exposed film electric method and the anti-seepage film around the regions is checked until seepage points are found. Seepage restoration by anti-seepage film welders after the seepage points are found is carried out. According to the method, present monitoring devices are fully utilized and data used by sensors is reduced; the method is economical and practical and has strong operability. Disuse of regulating reservoirs due to slope seepage is avoided.
Description
Technical field
The present invention relates to solid waste environmental protection and store up the seepage control system monitoring technology in field, especially relate to the side slope leakage orienting method of a kind of regulating reservoir monitoring.
Background technology
Regulating reservoir is industrial residue stockyard or the indispensable ingredient of household refuse landfill sites, plays backwater, flood storage, drains off floodwaters and adjusts flood effect, and the storage capacity of a medium-sized regulating reservoir is just up to hundreds thousand of cubes, and the depth of water is everlasting more than 5 meters.The water pollutant content of delivery industry slag storehouse or household refuse landfill sites is generally significantly high, is commonly referred to fresh water (FW).For preventing fresh water (FW) leakage pollution from entering soil and groundwater, fresh water (FW) regulating reservoir typically requires laying antiseepage film and carries out Anti-seeping technology.
For the monitoring technology of regulating reservoir seepage control system, method conventional at present is the detection of exposed geomembrane electrical method and antiseepage film monitoring systems approach.
The electrical method detection of exposed geomembrane is the high resistant characteristic utilizing antiseepage film material, and only indivisible electric current (being approximately zero) flows through antiseepage film, and the Potential Distributing under antiseepage film is uniform.When seepage occurs in HDPE antiseepage film, the upper and lower current electrode of antiseepage film forms loop by leak, causes that the electric current density of leak position increases, thus it is abnormal to cause the electromotive force near leak to occur.In detection process, the traveling electrode that bottom is moisture sponge being close to antiseepage film and moves, when traveling electrode is through there being the antiseepage film of seepage, the moisture in sponge makes the both positive and negative polarity of power supply connect, and forms loop and causes buzzer warning, thus can determine that leak location.
Antiseepage film monitoring system is placed in induction apparatus in antiseepage film by the mode welded, and is transferred in maincenter computer by cable by the signal of telecommunication, and under normal condition antiseepage film, Potential Distributing is uniform.Regulating reservoir is during normal use, when there is seepage in antiseepage film, the upper and lower current electrode of antiseepage film forms loop by leak, the obvious change situation that induction apparatus occurs when receiving the signal of telecommunication under it with non-seepage, so that it is determined that antiseepage film generation seepage, and according to the signal difference of multiple induction apparatuss, electric potential field variation diagram can be set up, and then calculate the position that seepage occurs.
The electrical method detection of exposed antiseepage film is usually in regulating reservoir antiseepage film construction period, the all antiseepage regions including weld seam are detected, but is not suitable on film existing the situation of medium, during regulating reservoir uses, owing to filling with fresh water (FW) in pond, the detection of exposed antiseepage film electrical method cannot be implemented.Antiseepage film monitoring systems approach is during the use of regulating reservoir, it is possible to achieve the real-time seepage of regulating reservoir is monitored, but induction apparatus cost is high, and location breakthrough needs at least three induction apparatus can receive the signal of telecommunication of breakthrough.
Summary of the invention
It is an object of the invention to provide the side slope leakage orienting method of a kind of regulating reservoir monitoring, it is easier, more economical to the leakage orienting regulating cell monitoring.
For solving above-mentioned technical problem, embodiments of the present invention provide the side slope leakage orienting method of a kind of regulating reservoir monitoring, and this side slope leakage orienting method is:
A, in have bottom the regulating reservoir of side slope install monitoring induction apparatus, this monitoring induction apparatus is connected to monitoring system；
B, when monitoring system sends regulating reservoir seepage alarm, if seepage region is not bottom regulating reservoir in induction coils regional extent, then seepage region is regulating reservoir side slope, as follows for regulating reservoir side slope leak location process:
B1., regulating reservoir carries out dewatering operation stage by stage, and the precipitation water-head in per stage is b；
B2. per stage dewatering operation is complete, monitoring system induction apparatus signal is compareed, if the seepage alarm of induction apparatus continues, then enter next stage dewatering operation, and so on, the seepage all clear of induction apparatus after N stage dewatering operation, it is determined that seepage region is in N stage precipitation region；
B3. bare membrane electrical method is utilized to detect the antiseepage film in N stage precipitation region, until finding breakthrough.
Further, water-head b is 0.5m-1m.
Further, this side slope leakage orienting method also includes step B4: utilize antiseepage film welding machine to carry out antiseepage film seepage repair.
Further, dewatering operation passes through pumping mode precipitation stage by stage.
Further, in step B2, the process that signal carries out compareing is as follows: launch the signal of telecommunication every certain elevation by maincenter computer, the situation of change of signal before and after contrast precipitation, time below water level decreasing to breaking point, owing to the upper and lower electrode of induction apparatus cannot be connected by breakthrough, then its electromotive force will raise, seepage all clear.
Further, the detection of bare membrane electrical method adopts electric spark method or hydraulic giant method or high pressure electrical method, to, in the last region released between seepage alarm and last seepage generation seepage alarm, carrying out surrounding the electrical method detection of regulating reservoir one circle, find breakthrough position.
Further, in step A, the installation site of monitoring induction apparatus is toe region bottom regulating reservoir.
There is advantages that and make full use of existing monitoring device, reduce induction apparatus and use data, economical and practical, workable, avoid the regulating reservoir caused because of side slope seepage simultaneously and stop using.
Accompanying drawing explanation
Fig. 1 is regulating reservoir plane graph；
Fig. 2 is regulating reservoir profile.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with specific embodiment, the present invention is expanded on further.
Referring to Fig. 1-2, this there is shown the regulating reservoir with side slope, this regulating reservoir has bottom side slope region 1 and regulating reservoir 3, regulating reservoir is provided with antiseepage film 4, bottom regulating reservoir, distribution has monitoring induction apparatus 2 (antiseepage film forever monitors system and regulating reservoir therein monitoring induction apparatus belongs to prior art, can refer to EP:2012069493:W；CN:201280059680:A；The documents such as EP:12781283:A, not in this to go forth), monitoring induction apparatus is distributed in regulating reservoir side slope regional dogleg position, can effectively detect whether regulating reservoir seepage occurs by the layout of above-mentioned monitoring induction apparatus, monitoring system due to regulating reservoir is a kind of technology that the integrity of antiseepage film can carry out monitor in real time, by induction apparatus, cable and maincenter computer composition, the region that more than 3 induction apparatuss surround can be realized seepage monitoring and location, when can accept signal for only 2 or 1 induction apparatus, can only judge whether monitoring region has seepage, seepage region can not be positioned.When monitoring of any moment system discovery antiseepage film has seepage, maincenter computer can send seepage alarm.This side slope leakage orienting method has only to toe region bottom regulating reservoir and is provided with monitoring system induction apparatus, just can pass through the water level decreasing in regulating reservoir side slope region and cooperating of monitoring induction apparatus, find out the scope of side slope region breakthrough, electrical method detection for exposed antiseepage film provides feasible environment, and then realizes the location of breakthrough electrical method detection.Thus avoid the great number cost installing induction apparatus more in regulating reservoir and cause.
Specifically, the side slope leakage orienting method of this regulating reservoir monitoring is:
In having bottom the regulating reservoir of side slope, monitoring induction apparatus is installed, the distribution mode of monitoring induction apparatus is that monitoring induction apparatus is installed in slope angle region bottom regulating reservoir, the monitoring induction apparatus of this case is distributed in six slope angle regions, and quantity is six, and this monitoring induction apparatus is connected to monitoring system.
Regulating reservoir stores after having fresh water (FW) 5, the normal balancing tank monitoring system induction apparatus abnormal signal used, and then triggering monitoring system sends seepage alarm, antiseepage film seepage is now had to occur in regulating reservoir, monitoring system sends regulating reservoir seepage alarm, confirm that seepage region in induction coils regional extent, does not then judge that seepage region is regulating reservoir side slope bottom regulating reservoir by the monitoring induction apparatus that is distributed at the bottom of slope, as follows for regulating reservoir side slope leak location process:
Utilizing pumping or alternate manner that regulating reservoir carries out dewatering operation stage by stage, the precipitation water-head in per stage is b, and the preferred 0.5m-1m of precipitation water-head, such as b takes 0.6m；
Per stage dewatering operation is complete, monitoring system induction apparatus signal is compareed, if the seepage alarm of induction apparatus continues, then enter next stage dewatering operation, and so on, the seepage all clear of induction apparatus after N stage dewatering operation, then determine that seepage region is in N stage precipitation region, for the breakthrough 6 location 2m place under water surface curve shown in Fig. 2, decline after first stage dewatering operation 0.6m by water surface curve, now seepage alarm continues, and illustrates that breakthrough is not or not first stage dewatering operation district；Continuing second stage dewatering operation, now water surface curve drops to 1.2m under former water surface curve, and seepage alarm continues, and continues precipitation；After phase III dewatering operation, water surface curve drops to 1.8m under former water surface curve, and seepage alarm continues, and continues precipitation；After fourth stage dewatering operation, water surface curve drops to 2.4m under former water surface curve, now owing to the path X of breakthrough connection induction apparatus electrode as shown in Figure 2 is cut off, now, seepage all clear, then judge that breakthrough is in fourth stage dewatering operation district.
B3. bare membrane electrical method is utilized to detect the antiseepage film in N stage (all fourth stages as previously described) precipitation region, until finding breakthrough 6.
This side slope leakage orienting method also includes step B4: utilizing antiseepage film welding machine to carry out antiseepage film seepage repair, antiseepage film seepage repair can be hot melt or extrusion method, and antiseepage film breaking point is repaired.
In step B2, the process that signal carries out compareing is as follows: launch the signal of telecommunication every certain elevation by maincenter computer, the situation of change of signal before and after contrast precipitation, (Fig. 2 illustrates the path X of breakthrough connection induction apparatus electrode) time below water level decreasing to breaking point, owing to the upper and lower electrode of induction apparatus cannot be connected by breakthrough, then its electromotive force will raise, seepage all clear.
The detection of bare membrane electrical method adopts electric spark method or hydraulic giant method or high pressure electrical method, to, in the last region released between seepage alarm and last seepage generation seepage alarm, carrying out surrounding the electrical method detection of regulating reservoir one circle, find breakthrough position.
In the present invention, have only to toe region bottom regulating reservoir and monitoring system induction apparatus is installed, just can pass through the water level decreasing in regulating reservoir side slope region and cooperating of monitoring induction apparatus, find out the scope of side slope region breakthrough, electrical method detection for exposed antiseepage film provides feasible environment, and then realizes the location of breakthrough electrical method detection.The great number cost that thus avoid more low installation induction apparatuss in regulating reservoir and cause.This covering device simplicity is exquisite, as long as process program is carried out rationally perfect design.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the invention, and in actual applications, it is possible in the form and details it is done various change, without departing from the spirit and scope of the present invention.
Claims (7)
1. the side slope leakage orienting method of regulating reservoir monitoring, it is characterised in that this side slope leakage orienting method is:
A, in have bottom the regulating reservoir of side slope install monitoring induction apparatus, this monitoring induction apparatus is connected to monitoring system；
B, when monitoring system sends regulating reservoir seepage alarm, if seepage region is not bottom regulating reservoir in induction coils regional extent, then seepage region is regulating reservoir side slope, as follows for regulating reservoir side slope leak location process:
B1., regulating reservoir carries out dewatering operation stage by stage, and the precipitation water-head in per stage is b；
B2. per stage dewatering operation is complete, monitoring system induction apparatus signal is compareed, if the seepage alarm of induction apparatus continues, then enter next stage dewatering operation, and so on, the seepage all clear of induction apparatus after N stage dewatering operation, it is determined that seepage region is in N stage precipitation region；
B3. bare membrane electrical method is utilized to detect the antiseepage film in N stage precipitation region, until finding breakthrough.
2. the side slope leakage orienting method of regulating reservoir according to claim 1 monitoring, it is characterised in that described water-head b is 0.5m-1m.
3. the side slope leakage orienting method of regulating reservoir according to claim 1 monitoring, it is characterised in that this side slope leakage orienting method also includes step B4: utilize antiseepage film welding machine to carry out antiseepage film seepage repair.
4. the side slope leakage orienting method of regulating reservoir according to claim 1 monitoring, it is characterised in that described dewatering operation passes through pumping mode precipitation stage by stage.
5. the side slope leakage orienting method of regulating reservoir according to claim 1 monitoring, it is characterized in that, in step B2, the process that signal carries out compareing is as follows: launch the signal of telecommunication every certain elevation by maincenter computer, the situation of change of signal before and after contrast precipitation, time below water level decreasing to breaking point, owing to the upper and lower electrode of induction apparatus cannot be connected by breakthrough, then its electromotive force will raise, seepage all clear.
6. the side slope leakage orienting method of regulating reservoir according to claim 1 monitoring, it is characterized in that, the detection of described bare membrane electrical method adopts electric spark method or hydraulic giant method or high pressure electrical method, to in the last region released between seepage alarm and last seepage generation seepage alarm, carry out surrounding the electrical method detection of regulating reservoir one circle, find breakthrough position.
7. the side slope leakage orienting method of regulating reservoir according to claim 1 monitoring, it is characterised in that in step A, the installation site of monitoring induction apparatus is toe region bottom regulating reservoir.
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| 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 |
| US6331778B1 (en) * | 1995-09-27 | 2001-12-18 | Leak Location Services, Inc. | Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques |
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Application publication date: 20160720 |