A kind of geotextile Vertical permeameterTechnical field
The invention belongs to geotechnological Instrument technology field, more particularly to a kind of geotextile Vertical permeameter.
Background technology
Geotextile is rolled up without civil engineering made by spinning process with synthetic fibers weaving or cementing, the hot pressing acupunctures of Jing etc.Material, drainage type geotextile allows water to pass through, and prevents fine grained soil from outflowing with water.Permeability is the important of drainage type geotextileOne of hydraulic performance, directly influences the application mode and use environment of geotextile.Because geotextile species is various, propertyCan differ, its permeability is often tested by the way of field test.The infiltrative indoor test of geotextile can be providedMore accurate, stable result, thus with positive effect.Design for the soil body more than existing indoor Penetration Signature test device,Rarely have for Geotextiles Design.
The content of the invention
The purpose of the present invention is, for above-mentioned deficiency present in prior art, to propose that a kind of geotextile vertically permeatesInstrument, be able to can test in the indoor vertical permeability to geotextile of experiment, and measurement result is more accurately and stable, hasSimple structure, easy to operate advantage.
The present invention solves its technical problem and employs the following technical solutions realization：
A kind of geotextile Vertical permeameter, including degasification water installations, infiltration measurement apparatus, the degasification water installations are arrangedIn the left side of infiltration measurement apparatus, the infiltration measurement apparatus include one level of support frame, one level of support plate, the one level of support frameFour angles end of one level of support plate bottom is respectively arranged at, transparent sink is provided with the top of the one level of support plate, it is described transparentIt is provided with fix bar, one-level overflow pipe in tank, the bottom of the fix bar is provided with one level of support bar and two grades of support bars, described oneThe bottom of level support bar and two grades of support bars is connected respectively with the bottom of transparent sink；
The bottom of the one-level overflow pipe extends through to one-level from the bottom of transparent sink and one level of support plateThe outside of fagging bottom, the one-level overflow pipe periphery in the transparent sink is threaded with two grades of overflow pipes；
Fix bar between the one level of support bar and transparent sink left side wall is provided with one-level through hole, the one level of supportFix bar between bar and two grades of support bars is provided with secondary through holes, and the top of two grades of overflow pipes is worn from one-level through holeCross, the fix bar top is provided with the annular test chamber in hollow-core construction, and the bottom of the fix bar is provided with circular channels, instituteState the center line of the center line of annular test chamber and circular channels and secondary through holes on the same line；
The periphery of the annular test chamber is threaded with nut, and three-level is respectively arranged at two ends with the top of the nutStrut, the three-level support bar is provided with level Four support bar near the top side wall of annular test chamber, and the level Four support bar is remoteSpring is provided with from one end bottom of three-level support bar, the inwall top of the annular test chamber is provided with annular groove, the ringThe bottom of connected in star is provided with one-level permeable stone, and geotextile, the top of the geotextile are provided with the top of the one-level permeable stonePortion is provided with two grades of permeable stones, and the bottom of the spring contacts with the top surface of two grades of permeable stones；
Outlet pipe is provided with the circular channels, the bottom of the outlet pipe is successively from the central portion of circular channels bottomPosition, the bottom center position of transparent sink, the central part of one level of support plate are passed.
Further, two grades of gripper shoes, the two side point of two grades of gripper shoes are provided with below the one level of support plateIt is not connected with one level of support frame, two below the outlet pipe grade gripper shoe is provided with electronic scale, the electronic scale is provided with oneLevel water butt, is provided with three-level through hole in two grades of gripper shoes below the one-level overflow pipe, set below two grades of gripper shoesThere are two grades of water butts.
Further, the secondary through holes are communicated respectively with annular test chamber and circular channels, the annular test chamberThe internal diameter of room and circular channels is respectively greater than the diameter of secondary through holes.
Further, the transparent sink left side wall below the fix bar is provided with one-level water inlet pipe, the one-level water inletOne end of pipe is put in transparent sink, and the outer right wall of the transparent sink is provided with the liquid level tube communicated with transparent sink.
Further, the degasification water installations include vavuum pump, degasification water tank, and at the top of the degasification water tank two grades are provided withWater inlet pipe and air pressure inlet, the vavuum pump is provided with gas removing pipe, and one end of the gas removing pipe passes through a left side for degasification tank topSide wall is simultaneously put in degasification water tank, and the gas removing pipe is provided with degassing and filtration valve, and the bottom of the degasification water tank is connected with water deliveryPipe, the water-supply-pipe is provided with suction pump.
Further, the geotextile Vertical permeameter also includes supporting table, water supply tank, the side wall of the water supply tankBottom is connected with one end of water-supply-pipe, and the water supply tank is arranged at the top of supporting table, and the bottom of the supporting table is provided with leastTwo two grades of bracing frames, the one-level water inlet pipe passes through the sidewall bottom of water supply tank and puts in water supply away from one end of transparent sinkIn tank, the one-level water inlet pipe is provided with flow control valve.
Further, the rounded structure of the geotextile, a diameter of 50mm of the geotextile.
Further, the one-level water inlet pipe after the flow control valve is provided with flowmeter.
Compared with prior art, the beneficial effect comprise that：The present invention is by two grades of overflow pipes and one-level overflowWater in the threaded connection of pipe so that two grades of overflow pipes can move up and down, transparent sink higher than two grades of overflow pipes will be by twoLevel overflow pipe and one-level overflow pipe stream enter in two grades of water butts, it is achieved thereby that in transparent sink the high high adjustment of water level function,The regulation to seepage flow head pressure in annular test chamber is further realized, can very easily be observed by the setting of liquid level tubeThe water level in transparent sink is read, the compression to spring is realized by rotating nut, it is achieved thereby that to two grades of permeable stonesSqueezing action, and then realize the clamping function to geotextile, easy to operate, simple structure, while the structure of the present inventionIt is compact, small volume, it is possible to achieve can test in the indoor vertical permeability to geotextile of experiment, geotextile is diameterThe standard component of 50mm, can easily change geotextile test specimen, so as to the operating efficiency of detection test has been significantly increased,Meet the needs for persistently detecting the vertical permeability parameters of geotextile, test result is more accurately and stable, one-level permeable stone andThe setting of two grades of permeable stones not only can play the clamping action to whole geotextile, and good water permeability, not affect testThe permeability of geotextile.
Description of the drawings
Technical scheme is described in further detail below with reference to drawings and Examples, but shouldKnow, these accompanying drawings are only designed for task of explanation, therefore not as the restriction of the scope of the invention.Additionally, removing non-specificallyPoint out, these accompanying drawings are meant only to conceptually illustrate structure construction described herein, without to be drawn to scale.
Below in conjunction with the accompanying drawings the present invention is further described：
Fig. 1 is infiltration measurement apparatus structural representation；
Fig. 2 is the overall structure figure of the present invention.
Wherein：1st, vavuum pump；2nd, degassing and filtration valve；3rd, gas removing pipe；4th, two grades of water inlet pipes；5th, air pressure inlet；6th, degassed waterCase；7th, water-supply-pipe；8th, two grades of bracing frames；9th, supporting table；10th, water supply tank；11st, one-level water inlet pipe；12nd, flow control valve；13rd, oneLevel gripper shoe；14th, transparent sink；15th, two grades of support bars；16th, circular channels；17th, annular test chamber；18th, one-level permeable stone；19th, nut；20th, liquid level tube；21st, level Four support bar；22nd, three-level support bar；23rd, spring；24th, two grades of permeable stones；25th, geotechnique knitsThing；26th, two grades of overflow pipes；27th, fix bar；28th, one-level through hole；29th, secondary through holes；30th, one level of support bar；31st, outlet pipe；32nd, one-level overflow pipe；33rd, one-level water butt；34th, electronic scale；35th, two grades of gripper shoes；36th, one level of support frame；37th, two grades of water storagesBucket；38th, three-level through hole.
Specific embodiment
Firstly, it is necessary to explanation, below by by way of example come illustrate the present invention temperature identifier it is concreteStructure, feature and advantage etc., but all of description is intended merely to what is illustrated, and should not be construed as to shape of the present inventionInto any restriction.Additionally, any single technical characteristic for being described by or implying in mentioned each embodiment herein, or quiltShow or implicit any single technical characteristic in the drawings, still can between these technical characteristics (or its equivalent) afterIt is continuous to be combined or deleted, so as to obtain the more other embodiments of the invention that may directly do not refer to herein.In addition, for the sake of in order to simplify drawing, same or like technical characteristic may be indicated only in the same figure at one.
With reference to embodiment, the present invention will be further described：
As shown in Figure 1-2, the present invention provides a kind of geotextile Vertical permeameter, including degasification water installations, infiltration measurementDevice, the degasification water installations be arranged at infiltration measurement apparatus left side, the infiltration measurement apparatus include one level of support frame 36,One level of support plate 13, the one level of support frame 36 is respectively arranged at four angles end of the bottom of one level of support plate 13, the one-levelThe top of fagging 13 is provided with transparent sink 14, the transparent sink 14 and is provided with fix bar 27, one-level overflow pipe 32, the fixationThe bottom of bar 27 is provided with the bottom of one level of support bar 30 and two grades of support bars 15, the one level of support bar 30 and two grades of support bars 15It is connected with the bottom of transparent sink 14 respectively；
The bottom of the one-level overflow pipe 32 extend through from the bottom of transparent sink 14 and one level of support plate 13 toThe outside of the bottom of one level of support plate 13, the periphery of one-level overflow pipe 32 in the transparent sink 14 is threaded with two grades of overflow pipes26；
Fix bar 27 between the one level of support bar 30 and the left side wall of transparent sink 14 is provided with one-level through hole 28, describedFix bar 27 between one level of support bar 30 and two grades of support bars 15 is provided with secondary through holes 29, the top of two grades of overflow pipes 26Portion passes through from one-level through hole 28, and the top of the fix bar 27 is provided with the annular test chamber 17 in hollow-core construction, the fixationThe bottom of bar 27 is provided with the center line and secondary through holes 29 of circular channels 16, the annular test chamber 17 and circular channels 1Center line is on the same line；
The periphery of the annular test chamber 17 is threaded with nut 19, and the top of the nut 19 is respectively arranged at two ends withThree-level support bar 22, the three-level support bar 22 is provided with level Four support bar 21, institute near the top side wall of annular test chamber 17State level Four support bar 21 and be provided with spring 23, the inwall top of the annular test chamber 17 away from one end bottom of three-level support bar 22Portion is provided with annular groove, and the bottom of the annular groove is provided with one-level permeable stone 18, and the top of the one-level permeable stone 18 is provided withGeotextile 25, the top of the geotextile 25 is provided with two grades of permeable stones 24, the bottom of the spring 23 and two grades of permeable stones24 top surface contact；
Outlet pipe 31 is provided with the circular channels 16, the bottom of the outlet pipe 31 is successively from the bottom of circular channels 16Central part, the bottom center position of transparent sink 14, the central part of one level of support plate 13 are passed.
The lower section of the one level of support plate 13 is provided with two grades of gripper shoes 35, the two side of two grades of gripper shoes 35 respectively withOne level of support frame 36 connects, and two grades of gripper shoes 35 of the lower section of the outlet pipe 31 are provided with electronic scale 34, on the electronic scale 34It is provided with one-level water butt 33, is provided with three-level through hole 38 in two grades of gripper shoes 35 of the lower section of the one-level overflow pipe 32, described two gradesThe lower section of gripper shoe 35 is provided with two grades of water butts 37.
The secondary through holes 29 are communicated respectively with annular test chamber 17 and circular channels 16, the annular test chamber 17With the diameter that the internal diameter of circular channels 16 is respectively greater than secondary through holes 29.
The left side wall of transparent sink 14 of the lower section of the fix bar 27 is provided with one-level water inlet pipe 11, the one-level water inlet pipe 11One end put in transparent sink 14, the outer right wall of the transparent sink 14 is provided with the liquid level tube communicated with transparent sink 1420。
The degasification water installations include vavuum pump 1, degasification water tank 6, and the top of the degasification water tank 6 is provided with two grades of water inlet pipes4 and air pressure inlet 5, the vavuum pump 1 is provided with gas removing pipe 3, the left side of one end of the gas removing pipe 3 through the top of degasification water tank 6Side wall is simultaneously put in degasification water tank 6, and the gas removing pipe 3 is provided with degassing and filtration valve 2, and the bottom of the degasification water tank 6 is connected withWater-supply-pipe 7, the water-supply-pipe 7 is provided with suction pump.
The geotextile Vertical permeameter also includes supporting table 9, water supply tank 10, a sidewall bottom of the water supply tank 10It is connected with one end of water-supply-pipe 7, the water supply tank 10 is arranged at the top of supporting table 9, the bottom of the supporting table 9 is provided with leastTwo two grades of bracing frames 8, the one-level water inlet pipe 11 away from transparent sink 14 one end through water supply tank 10 sidewall bottom simultaneouslyPut in water supply tank 10, the one-level water inlet pipe 11 is provided with flow control valve 12.
The rounded structure of the geotextile 25, a diameter of 50mm of the geotextile.
One-level water inlet pipe 11 after the flow control valve 12 is provided with flowmeter.
The operation principle of the geotextile Vertical permeameter is：When measuring, geotextile 25 is positioned over into one-level saturatingBetween water stone 18 and two grades of permeable stones 24, then rotating nut 19 is compressed spring 23, so that two grades of spring 23 pair is thoroughlyWater stone 24 applies pressure, and then realizes the function of clamping about 25 to geotextile, by two grades of water inlet pipes 4 to degasification water tank 6Interior loading water, then carries out degasification operation, the water after degasification using vavuum pump 1 and degassing and filtration valve 2 by the water in degasification water tank 6It is transported in water supply tank 10 through water-supply-pipe 7, then Jing one-levels water inlet pipe 11 is sent in transparent sink 14, flow control valve 12The size that stream enters flow in transparent sink 14 can be adjusted, two grades of overflow pipes 26 is manually rotated so that two grades of overflow pipes 26Can move up and down, the water in transparent sink 14 higher than two grades of overflow pipes 26 will be by two grades of overflow pipes 26 and one-level overflow pipe 32Stream enters in two grades of water butts 37, it is achieved thereby that in transparent sink 14 the high high adjustment of water level function, and then realize to annularThe regulation of seepage flow head pressure in test chamber 17, by the setting of liquid level tube 20 reading transparent sink can be very easily observedWater level in 14, the water Jing one-levels permeable stone 18 in annular test chamber 17,25, two grades of streams of permeable stone 24 of geotextile enter circleIn tank 16, when the water level in circular channels 16 is higher than outlet pipe 31, will be entered in one-level water butt 33 by the stream of outlet pipe 31, whenAfter waterflow stabilization, the water in one-level water butt 33 is discharged, timing is started by stopwatch, at the appointed time using electronic scale 34Carry out the weight that measurement stream enters water in one-level water butt 33, it is achieved thereby that the work(to the vertical permeability parameter measurement of geotextile 25Energy.
The geotextile Vertical permeameter device be able to can be surveyed in the indoor vertical permeability to geotextile of experimentExamination, measurement result is more accurately and stable, has the advantages that simple structure, easy to operate.
The present invention has been described in detail above by embodiment, but the content is only the preferable enforcement of the present inventionExample, it is impossible to be considered as the practical range for limiting the present invention.All impartial changes made according to the present patent application scope and improvementDeng, all should still belong to the present invention patent covering scope within.