CN104950346A - Sectionalized test system for floor mining-induced damage range - Google Patents
Sectionalized test system for floor mining-induced damage range Download PDFInfo
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- CN104950346A CN104950346A CN201510358027.2A CN201510358027A CN104950346A CN 104950346 A CN104950346 A CN 104950346A CN 201510358027 A CN201510358027 A CN 201510358027A CN 104950346 A CN104950346 A CN 104950346A
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Abstract
The invention discloses a sectionalized test system for a floor mining-induced damage range. The sectionalized test system comprises a detection system, a blocking system and a supply determining system, wherein the detection system is mounted in a drill hole of a fractured zone; the blocking system is used for blocking the drill hole; the detection system comprises a test probe formed by sequentially connecting a plurality of detection units, the adjacent detection units are detachably connected through a slot joint, fixed type pressure adjusting valves are arranged in the slot joints of the detection units at the front part and in the middle, and a detachable type pressure adjusting valve is arranged in the slot joint of the detection unit at the tail part. According to the sectionalized test system, the plurality of detection units are sequentially connected to form the test probe, pressure values are adjusted by the fixed type pressure adjusting valves and the detachable type pressure adjusting valve, the pressure values of all detection units keep equal, further, the drill hole can be measured synchronously, the workload is reduced by times, and the measurement precision is improved.
Description
Technical field
The invention belongs to Mining failure band degree of depth determination techniques field, mine, be specifically related to a kind of base plate Mining failure scope sectionalization test system.
Background technology
The measurement of the mine base plate mining-induced fissure band degree of depth is the important parameter of mark coal petrography occurrence status.When studying mine water management, it is a critical underlying parameter, therefore for the formation of the conduit pipe in country rock is adopted in research, just be necessary the elevation measurement grasped strata movement rule and determine Mining failure band, usually adopt the means such as the expectation of numerical simulation, experimental formula, field measurement.
But because field condition is complicated, to a certain extent, numerical simulation well can not reflect field condition, the blindness that experimental formula is estimated is comparatively large, and along with adopting dark increasing, experimental formula applicability worse and worse.The equipment that field measurement adopts can only measure one section at every turn, the measurement length of every section is about 1.5m, and drillable length is about 30-50m, measuring equipment is caused to move number of times in the borehole too much, the head pressure error caused due to dip angle of hole and equipment self-defect, cause each survey section of existing equipment can not be oversize, cause surveying hop count few (be generally 1 and survey hop count), workload large, mobile often, measure the problems such as out of true.
Summary of the invention
The object of the present invention is to provide a kind of base plate Mining failure scope sectionalization test system, this system can realize multistage and the synchro measure of base plate Mining failure band, and can according to the survey hop count order of the suitable increase one-shot measurement of drillable length, at double decrease workload, improve measuring accuracy.
Its technical solution comprises:
A kind of base plate Mining failure scope sectionalization test system, it comprises detection system, plugging system and supply Analytical system, and described detection system is arranged in the boring of fissure zone, and described plugging system is used for closing described boring,
Described detection system comprises test probe, described test probe is connected in turn by several probe units and is formed, formed by draw-in groove joint between adjacent probe unit and removably connect, each probe unit comprises water inlet pipe, fixed pressure-regulating valve, detachable pressure-regulating valve and electronic flow-meter, the two ends of the water inlet pipe of each probe unit are fastened on described draw-in groove joint respectively, the draw-in groove joint being positioned at the probe unit at front portion and middle part arranges described fixed pressure-regulating valve, the draw-in groove joint being positioned at the probe unit of afterbody arranges described detachable pressure-regulating valve, described water inlet pipe is provided with water delivering orifice, described electronic flow-meter is installed in described water outlet, for recording the streamflow of this probe unit, water flow pressure in each probe unit keeps equal,
Described plugging system comprises capsule connecting pipe, fastening bung flange, shutoff operating capsule platform and several shutoff capsules, each shutoff capsule all surrounds the outside of described draw-in groove joint, by described fastening bung flange, shutoff capsule is fastened on described draw-in groove joint, described capsule connecting pipe is fastened on described draw-in groove joint, for by adjacent shutoff capsule be communicated with, described shutoff operating capsule platform by described capsule connecting pipe to conveying high-pressure source of the gas in each shutoff capsule;
Described supply Analytical system is communicated with described water inlet pipe, for water filling in water inlet pipe, display record parameters.
The direct Advantageous Effects that technique scheme is brought:
Test probe is set to some sections of several unit i.e., and regulate force value by fixed pressure-regulating valve and detachable pressure-regulating valve, ensure that the force value of each probe unit keeps equal, owing to there is several probe units, the synchro measure to boring can be realized again.
Each probe unit in test probe matches with shutoff capsule in plugging system, can form several relatively independent probe unit, carry out multiple-unit synchro measure, can increase each total length measured; And existing sniffer, only have a probe unit, and element length is shorter, causes movement, pendulous frequency is many, workload is large, poor accuracy.
Leak detection system of the present invention can make to measure that total length is long at every turn, test probe moves that number of times is few, workload reduces at double, when probe unit is measured, fixed pressure-regulating valve closes, each probe unit can be made relatively independent to each other, the error that head pressure causes can be reduced, realize multistage synchro measure; When probe unit lack of water, fixed pressure-regulating valve and detachable pressure-regulating valve are opened, each probe unit supplementary pressure water source (first from being positioned at anterior probe unit) successively can be made, in addition, because pressure-regulating valve opening pressure fixed in this system is definite value, its value sets according to specific dip angle of hole and length that each probe unit is surveyed, and therefore utilizes this system to realize the borehole survey of the special angle of base plate Mining failure band only.
As a preferred version of the present invention, described draw-in groove joint comprises column chamber, water inlet pipe draw-in groove joint and shutoff capsule joint, described shutoff capsule joint is positioned at the top of described water inlet pipe draw-in groove joint, the flange extended laterally is arranged at top and the bottom of described column chamber, and described shutoff capsule surrounds on described flange.
The direct Advantageous Effects that technique scheme is brought is: flange is when fastening bung flange fixes shutoff capsule, play a supporting role, by fastening bung flange, can shutoff capsule be fixed on flange, make shutoff capsule and draw-in groove joint form seal cavity needed for swollen shutoff capsule.
As another preferred version of the present invention, described capsule connecting pipe is divided into independently some sections, be provided with near the front portion of every section of capsule connecting pipe and afterbody place the screw that is locked, be positioned at the rounded baffle-like of capsule connecting pipe that is anterior and afterbody, in order to the screw that is locked described in blocking.
Preferably, described in be locked in the middle of screw in circular hole, be threaded connection and capsule connecting pipe be fastened on shutoff capsule joint.
The direct Advantageous Effects that technique scheme is brought is:
Due to shutoff capsule joint inside also rounded baffle-like, coordinating therefore by be locked screw and shutoff capsule joint, capsule connecting pipe is embedded in shutoff capsule joint, and compacting sealing to each other.
Preferably, described detachable pressure-regulating valve comprises spring, adjusting screw, sealing clamp, piston group, Kong Yi, hole two and limbers, described adjusting screw is positioned at the top of described sealing clamp, described spring is positioned at the bottom of sealing clamp, described piston group is positioned at below described spring, described adjusting screw changes initial tension of spring to reach corresponding opening pressure by regulating the position of sealing clamp, controls current by the movement of described piston group.
Preferably, in described detachable pressure-regulating valve, if the pressure in hole one is greater than the pressure in hole two, and when reaching the opening pressure value of described adjusting screw setting, piston group is moved, now piston group is communicated with described limbers just, and the water of side, hole, by limbers access aperture two side, reaches the object of supplementing water; If the pressure of the water of side, hole is less than the pressure of the water of side, hole two, under the action of the spring, piston group is in downside, and now, piston group seals described limbers just.
Preferably, the opening pressure that the adjusting screw in described detachable pressure-regulating valve regulates is determined by the water injection pressure of test setting.
The direct Advantageous Effects that technique scheme is brought: detachable pressure-regulating valve can set corresponding opening pressure value by adjusting screw in advance according to the demand of different water injection pressures, then install and measure, and then when realizing the water filling of extraneous pressure water source, the opening pressure value of setting must be reached, just can enter water inlet pipe, play filtration, regulate the effect of source pressure.
Preferably, described fixation pressure variable valve comprises spring, piston group, Kong Yi, hole two and limbers, and described piston group is positioned at below spring, and the pressure that described fixation pressure variable valve is opened is particular value.
The direct Advantageous Effects that technique scheme is brought:
The effect of fixed pressure-regulating valve is, the first intercepts, seals adjacent probe unit, offset the head pressure of last probe unit to the impact of next probe unit, it two is when certain probe unit lack of water, due to pressure differential, fixed pressure-regulating valve is opened, by last probe unit order supplementary pressure water source, closes until reduce the fixed pressure-regulating valve of pressure official post; In addition, fixed pressure-regulating valve opening pressure is definite value, and therefore this system is only applicable to the borehole survey of the special angle of base plate water flowing fractured zone.Fixed pressure-regulating valve and detachable pressure-regulating valve cooperatively interact, and both can ensure that probe unit that the water source order of specified pressure enters lack of water reaches the effect of moisturizing, mutually can intercept again and form relatively independent probe unit.
Preferably, described supply Analytical system comprises water flood operations platform, electronic logger, rig and drilling rod, described water flood operations platform provides high-pressure water to described water inlet pipe, described electronic logger is installed on water flood operations platform, for recording the streamflow parameter of described electronic flow-meter, described rig, drilling rod are used for mobile described detection system, and described water flood operations platform comprises flowmeter, tensimeter, are respectively used to observation injection flow and water injection pressure.
Preferably, probe unit comprises 3-6, and drillable length that each probe unit is surveyed is 2m.
The Advantageous Effects that the present invention brings:
Base plate Mining failure scope sectionalization test system of the present invention, it mainly comprises detection system, plugging system and supply Analytical system, compared with prior art, detection system of the present invention is by fixed pressure-regulating valve, open under achieving fixation pressure, water source supplements automatically, while ensure that each survey section pressure is equal, multiple survey section can be divided into, both decreased the error that head pressure causes, achieved again the synchro measure of each survey section, and surveyed intersegmental water source automatic sequence and supplement, at double decrease mobile number of times and workload, improve measuring accuracy as much as possible.At the scene in actual measurement, can according to the length of boring, the survey hop count order of suitable increase one-shot measurement.Owing to have employed electronic logger, the present invention automatic phasing pass data periodically can record, stores and transmits, and decreases the number of times of artificial data record.
Because pressure-regulating valve opening pressure fixed in this system is definite value, its value sets according to specific dip angle of hole and length that each probe unit is surveyed, and therefore this system realizes the borehole survey of the special angle of base plate Mining failure band only.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, explanation clear, complete is further done to the present invention:
Fig. 1 is the structural representation of base plate Mining failure scope sectionalization test system of the present invention;
Fig. 2 is leak detection system working state schematic representation;
Fig. 3 is test probe structural representation;
Fig. 4 is middle part probe unit STRUCTURE DECOMPOSITION figure;
Fig. 5 is capsule connecting pipe structure schematic diagram;
Fig. 6 is anterior probe unit exploded view;
Fig. 7 is afterbody probe unit draw-in groove shank structural representation;
Fig. 8 is fixed pressure-regulating valve structural representation;
Fig. 9 is detachable pressure-regulating valve structural representation;
Figure 10 is detachable pressure-regulating valve vertical view;
In figure, 1, rock mass, 2, boring, 3, test probe, 301, anterior probe unit, 302, middle part probe unit, 303, afterbody probe unit, 4, shutoff capsule, 5, fastening bung flange, 6, packing washer, 7, flange, 8, admitting pipe joint, 9, water inlet pipe, 10, spring, 11, water delivering orifice, 12, adjusting screw, 13, sealing clamp, 14, piston group, 15, Kong Yi, 16, hole two, 17, limbers, 18, capsule connecting pipe, 19, be locked screw, 20, electronic flow-meter, 21, shutoff capsule joint, 22, end cap, 23, drilling rod, 24, rig, 25, pressure hose, 26, high-pressure hose, 27, shutoff room, 28, shutoff operating capsule platform, 29, water flood operations platform, 30, electronic logger, 31, fixed pressure-regulating valve, 32, the front end of anterior probe unit, 33, draw-in groove joint, 34, tensimeter, 35, flowmeter, 36, detachable pressure-regulating valve.
Embodiment
Below in conjunction with specific embodiment, the present invention is elaborated.
Base plate Mining failure scope sectionalization test system of the present invention, as shown in Figure 1 and Figure 2, mainly comprise detection system, plugging system and supply Analytical system, detection system is arranged in the boring of fissure zone, plugging system is used for closing described boring, and supply Analytical system is used for providing water source and source of the gas.
Detection system comprises test probe, as shown in Figure 3, test probe unlike the prior art, it is not an entirety, but be in turn connected to form by several probe units, the present embodiment illustrates for three probe units, by stretch into floor strata boring inner side be anterior probe unit 301, middle part be the afterbody probe unit 303 in middle part probe unit 302 and close outside, shown in composition graphs 4 and Fig. 6, each probe unit includes water inlet pipe 9, fixed pressure-regulating valve 31, detachable pressure-regulating valve 36 and electronic flow-meter 20, the two ends of the water inlet pipe of each probe unit are fastened on draw-in groove joint respectively, formed by draw-in groove joint and removably connect, the structure of trailer card trough connection as shown in Figure 7, the profile of draw-in groove joint is column, its top and bottom have flange 7 laterally, center section is column chamber, the effect of flange is to make shutoff capsule 4 better around on flange draw-in groove joint, admitting pipe joint 8 and shutoff capsule joint 21 is provided with in draw-in groove joint 33, admitting pipe joint 8 is connected with water inlet pipe 9, water inlet pipe 9 is connected with water supply installation in supply Analytical system, the draw-in groove joint being positioned at the probe unit at front portion and middle part arranges fixed pressure-regulating valve, the draw-in groove joint being positioned at the probe unit of afterbody arranges detachable pressure-regulating valve, water inlet pipe 9 is provided with water delivering orifice 11, the end of water delivering orifice 11 is provided with an electronic flow-meter 20, water delivering orifice 11 is responsible for the water side inflow drill hole inner wall made in water inlet pipe 9, electronic flow 20 is responsible for recording and is transmitted the discharge of this water delivering orifice 11.
Electronic flow-meter is installed in described water outlet, for recording the streamflow of this probe unit.
Water inlet pipe in above-mentioned each probe unit is detachable, it is made up of the water inlet pipe one removably connected and water inlet pipe two, as being connected by buckle and draw-in groove, establish packing washer 6 to seal completely in junction, water inlet pipe is connected with water inlet pipe draw-in groove joint, the water inlet pipe of each probe unit is set to detachable, can according to probe unit number, spreading probe unit; Meanwhile, be also convenient to installation, maintenance change conveniently.
Plugging system comprises capsule connecting pipe 18, fastening bung flange 5, shutoff operating capsule platform 28 and several shutoff capsules 4, each shutoff capsule all surrounds the outside of above-mentioned draw-in groove joint, by fastening bung flange 5, shutoff capsule 4 is fastened on draw-in groove joint again, capsule connecting pipe 18 is fastened on draw-in groove joint, adjacent shutoff capsule can be communicated with, shutoff operating capsule platform 28 passes through capsule connecting pipe to conveying high-pressure source of the gas in each shutoff capsule.
Above-mentioned shutoff capsule 4 surrounds the outside of draw-in groove joint 33, with a swollen space of its formation shutoff capsule 4, shutoff capsule 4 is fastened on draw-in groove joint 33 by fastening bung flange 5, capsule connecting pipe 18 is divided into independently some sections, as shown in Figure 5, the screw 19 that is locked is being provided with near the front portion of every section of capsule connecting pipe and afterbody place, be positioned at the rounded baffle-like of capsule connecting pipe that is anterior and afterbody, in order to block this screw that is locked, the screw 19 that is locked is middle in circular hole, by being threaded, capsule connecting pipe 18 is fastened in shutoff capsule joint 21, high-pressure air source to be sent in the space that draw-in groove joint 33 and shutoff capsule 4 formed by pressure hose 25 by shutoff operating capsule platform 28, form shutoff room 27, to have reached the effect of swollen shutoff capsule 4.
End cap 22 is positioned at the front end of anterior probe unit 32, end cap 22 is threaded with draw-in groove joint 33 one-tenth, water inlet pipe 9 is threaded by the draw-in groove joint 33 of admitting pipe joint 8 with afterbody probe unit, the draw-in groove joint 33 of water inlet pipe 9 and anterior probe unit and middle part probe unit afterbody is in being fixedly connected with, shutoff capsule joint 21 has two, is positioned at outside admitting pipe joint 8, the circular hole baffle plate of the indent that is connected, be provided with a packing washer 6 in circular baffle plate, seal.
As Fig. 9, shown in Figure 10, detachable pressure-regulating valve 36 is by spring 10, adjusting screw 12, sealing clamp 13, piston group 14, hole 1, hole 2 16 and limbers 17 form, adjusting screw 12 changes spring 10 pretightning force to reach corresponding opening pressure by regulating the position of pressing plate 13, if the pressure in the water hole 1 in water inlet pipe 9 is greater than the pressure in hole 2 16, and when reaching the opening pressure value of adjusting screw 12 setting, piston group 14 is moved, now piston group 14 is communicated with limbers 17 just, the water of side, hole 1 is by access aperture 2 16 side, limbers 17, reach the object of supplementing water, if the pressure of the water of side, hole 1 is less than the pressure of the water of side, hole 2 16, under the effect of spring 10, piston group 14 is in downside, and now, piston group 14 is sealing limbers 17 just.
Detachable pressure-regulating valve 36 is positioned at the draw-in groove joint 33 of test probe 3 afterbody, its upper and lower two ends become convex, can after mixing up the opening pressure of setting, draw-in groove joint 33 is put into along tongue 7, connect water inlet pipe 9 again, the water injection pressure that the opening pressure that the adjusting screw 12 in detachable pressure-regulating valve 36 regulates can be set based on the test is determined.
As shown in Figure 8, fixed pressure-regulating valve 31 is made up of spring 10, piston group 14, hole 1, hole 2 16, limbers 17, the opening pressure of the spring 10 that fixed pressure-regulating valve 31 controls, it is definite value, can not change, be only applicable to specifically hole 2 inclination angles and the measurement of length surveying section, opening pressure not only can be cut off adjacent survey section space but also can balance because of Ce Duan UNICOM, the head pressure error caused.
Supply Analytical system comprises water flood operations platform 29, electronic logger 30, rig 24, drilling rod 23 and high-pressure hose 26, water flood operations platform 29 provides the water source of specified pressure to water inlet pipe 9 by high-pressure hose 26, rig 24 and drilling rod 23 are for mobile test probe 3, in order to measure the degree of depth of the Mining failure band of diverse location in boring 2, electronic logger is installed on water flood operations platform, for the streamflow parameter of recorded electronic flowmeter, rig, drilling rod is used for mobile detection system, water flood operations platform comprises flowmeter 35, tensimeter 34, be respectively used to observation injection flow and water injection pressure, the water flow data that electronic logger 30 transmits in order to receive electronic flow-meter 20, and other related datas of test, process accordingly, form boring stray arrow figure.
Elaborate to the observation procedure of base plate Mining failure scope sectionalization test system below, key step comprises:
(1) drilling: the descending boring 2 of beating special angle with conventional coal mine drilling machine 24 in coal petrography tunnel in floor strata 1, hole depth reaches about 30-50m;
(2) detection system is installed: the foreign material in cleaning boring 2, installation testing probe 3 in boring 2, length is measured according to boring 2, applicable measured hole hop count order is set, connect anterior probe unit, middle part probe unit and afterbody probe unit successively, and utilize rig 24 and drilling rod 23 to be sent to boring 2 initial position;
(3) boring also water filling is closed: after probe 3 to be tested arrives initial position, install and join dependency pipeline, shutoff capsule 4 is utilized to form shutoff room 27, first utilize shutoff operating capsule platform 28, by pressure hose 25, high-pressure air source is delivered to shutoff capsule 4, reach and cause certain pressure, form shutoff room 27; Then utilize water flood operations platform 29, by high-pressure hose 26, water inlet pipe 9 is delivered at specified pressure water source, wherein, the gaseous tension in shutoff capsule 4 wants the pressure of the water in a little higher than methane gas pressure and shutoff room 27 in water inlet pipe 9;
(4) flowing water vector parameters is measured: after water pressure to be achieved, carry out flowing water vector parameters mensuration, open switch and electronic equipment 30, and corresponding source pressure is provided, after stable, the water flow data of electronic flow-meter 20 and other pressure and related data is received by electronic logger 30, electronic logger 30 forms the corresponding flowing water polar plot of this survey section after the data collected are carried out Treatment Analysis, then rig 24 and drilling rod 23 mobile test probe 3 is utilized, repeat step (2), (3) (4), successively boring 2 is measured.
Should instructions be, above-described embodiment is only to an explanation of the present invention, and and non-limiting, the number of probe unit, shutoff capsule and drillable length that each probe unit is surveyed all can change according to on-site actual situations, further, the parameter such as water inlet pipe and return pipe also can adjust according to actual conditions.
Those skilled in the art are under enlightenment of the present invention, and other probe unit of the detachable connection drawn also should within protection scope of the present invention.
Claims (10)
1. a base plate Mining failure scope sectionalization test system, it comprises detection system, plugging system and supply Analytical system, and described detection system is arranged in the boring of adopting band, and described plugging system is used for closing described boring, it is characterized in that:
Described detection system comprises test probe, described test probe is connected in turn by several probe units and is formed, formed by draw-in groove joint between adjacent probe unit and removably connect, each probe unit comprises water inlet pipe, fixed pressure-regulating valve, detachable pressure-regulating valve and electronic flow-meter, the two ends of the water inlet pipe of each probe unit are fastened on described draw-in groove joint respectively, the draw-in groove joint being positioned at the probe unit at front portion and middle part arranges described fixed pressure-regulating valve, the draw-in groove joint being positioned at the probe unit of afterbody arranges described detachable pressure-regulating valve, described water inlet pipe is provided with water delivering orifice, described electronic flow-meter is installed in described water outlet, for recording the streamflow of this probe unit, water flow pressure in each probe unit keeps equal,
Described plugging system comprises capsule connecting pipe, fastening bung flange, shutoff operating capsule platform and several shutoff capsules, each shutoff capsule all surrounds the outside of described draw-in groove joint, by described fastening bung flange, shutoff capsule is fastened on described draw-in groove joint, described capsule connecting pipe is fastened on described draw-in groove joint, for by adjacent shutoff capsule be communicated with, described shutoff operating capsule platform by described capsule connecting pipe to conveying high-pressure source of the gas in each shutoff capsule;
Described supply Analytical system is communicated with described water inlet pipe, for water filling in water inlet pipe, display record parameters.
2. base plate Mining failure scope sectionalization test system according to claim 1, it is characterized in that: described draw-in groove joint comprises column chamber, water inlet pipe draw-in groove joint and shutoff capsule joint, described shutoff capsule joint is positioned at the top of described water inlet pipe draw-in groove joint, the flange extended laterally is arranged at top and the bottom of described column chamber, and described shutoff capsule surrounds on described flange.
3. base plate Mining failure scope sectionalization test system according to claim 1, it is characterized in that: described capsule connecting pipe is divided into independently some sections, the screw that is locked is being provided with near the front portion of every section of capsule connecting pipe and afterbody place, be positioned at the rounded baffle-like of capsule connecting pipe that is anterior and afterbody, in order to the screw that is locked described in blocking.
4. base plate Mining failure scope sectionalization test system according to claim 3, is characterized in that: described in be locked in the middle of screw in circular hole, be threaded connection and capsule connecting pipe be fastened on shutoff capsule joint.
5. base plate Mining failure scope sectionalization test system according to claim 1, it is characterized in that: described detachable pressure-regulating valve comprises spring, adjusting screw, sealing clamp, piston group, Kong Yi, hole two and limbers, described adjusting screw is positioned at the top of described sealing clamp, described spring is positioned at the bottom of sealing clamp, described piston group is positioned at below described spring, described adjusting screw changes initial tension of spring to reach corresponding opening pressure by regulating the position of sealing clamp, controls current by the movement of described piston group.
6. base plate Mining failure scope sectionalization test system according to claim 5, it is characterized in that: in described detachable pressure-regulating valve, if the pressure in hole one is greater than the pressure in hole two, and when reaching the opening pressure value of described adjusting screw setting, piston group is moved, now piston group is communicated with described limbers just, and the water of side, hole, by limbers access aperture two side, reaches the object of supplementing water; If the pressure of the water of side, hole is less than the pressure of the water of side, hole two, under the action of the spring, piston group is in downside, and now, piston group seals described limbers just.
7. base plate Mining failure scope sectionalization test system according to claim 5, is characterized in that: the opening pressure that the adjusting screw in described detachable pressure-regulating valve regulates is determined by the water injection pressure of test setting.
8. base plate Mining failure scope sectionalization test system according to claim 1, it is characterized in that: described fixed pressure-regulating valve comprises spring, piston group, Kong Yi, hole two and limbers, described piston group is positioned at below spring, and the pressure that described fixed pressure-regulating valve is opened is particular value.
9. base plate Mining failure scope sectionalization test system according to claim 1, it is characterized in that: described supply Analytical system comprises water flood operations platform, electronic logger, rig and drilling rod, described water flood operations platform provides high-pressure water to described water inlet pipe, described electronic logger is installed on water flood operations platform, for recording the streamflow parameter of described electronic flow-meter, described rig, drilling rod are used for mobile described detection system, described water flood operations platform comprises flowmeter, tensimeter, is respectively used to observation injection flow and water injection pressure.
10. base plate Mining failure scope sectionalization test system according to claim 1, is characterized in that: probe unit comprises 3-6, and drillable length that each probe unit is surveyed is 2m.
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| CN106968664A (en) * | 2017-03-29 | 2017-07-21 | 淮南矿业(集团)有限责任公司 | A kind of floor undulation destruction band deep drilling water filling detection method |
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| CN114994747A (en) * | 2022-07-07 | 2022-09-02 | 中国电建集团西北勘测设计研究院有限公司 | Gravity type dry hole sound wave probe |
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