CN207163655U - A kind of dynamic pore hydraulic gage examines and determine pressure chamber device - Google Patents

Abstract

It the utility model is related to a kind of dynamic pore hydraulic gage calibrating pressure chamber device, including examining and determine pressure chamber body, pressure chamber is provided with the top of the calibrating pressure chamber body, there is hollow gas distribution chamber inside the upper pressure chamber, the gas distribution chamber is suitable for reading corresponding with the calibrating pressure chamber body, and multiple air admission holes equally distributed in the gas distribution chamber are provided with the gas distribution chamber, the air admission hole connects with the inside of the calibrating pressure chamber body, the air inlet pipe being connected with the gas distribution chamber is provided with the upper pressure chamber.Ventage piezometer to be examined and determine, which will not produce, in the calibrating pressure chamber device significantly swings, and this can effectively improve the accuracy of ventage piezometer calibrating, so as to effectively prevent ventage piezometer damage to be examined and determine.

Description

A kind of dynamic pore hydraulic gage examines and determine pressure chamber device

Technical field

The dynamic calibration technical field of ventage piezometer is the utility model is related to, more particularly to a kind of dynamic pore hydraulic gage Examine and determine pressure chamber device.

Background technology

Pore water pressure refers to the pressure that saturated soil body pore media reclaimed water is born, be on atmospheric pressure it is a kind of just Pressure (meter pressure).For differentiating the effect of external interference load lower ground, ground structures (dike/dam/side slope/harbour), underground The deformation such as structure and ocean basis and a critical physical parameter of stability.Pore water pressure be divided into again quiet pore water pressure with Excess pore water pressure, wherein, quiet pore water pressure：As caused by the deadweight of underground water in foundation soil, i.e., static underground water Following pore water pressure is all quiet pore water pressure；Excess pore water pressure：Due to extraneous static(al) or dynamic action, more than with The part pore water pressure of the relevant quiet pore water pressure of starting of groundwater condition is referred to as excess pore water pressure.

Ventage piezometer (abbreviation pore pressure meter) be in field observation and physical test observe excess pore water pressure increase with The key measurement sensor to dissipate.

To ensure the stability and reliability of ventage piezometer, it usually needs the sensor of ventage piezometer is tested With calibrating.Currently available technology is mainly entered using the triaxial cell of repacking to the transducer dwell response performance of ventage piezometer Row test and calibrating, such as Southeast China University's traffic institute are published in《Engineering investigation》10th phase in 2012, entitled " embedment declines In the paper of application of the type hole pressure meter in vacuum preloading model test ", it is noted that a kind of ventage piezometer calibrating experiment instrument Device, the balancing gate pit in the laboratory apparatus are similar to the balancing gate pit of ordinary triaxial test, height 50cm, diameter 25cm, using wall thickness Justify for 1cm high-strength transparence organic plastics as side wall, lower pressure chamber and upper pressure chamber for the steel with O-ring seal Plate, intake-outlet, vacuum-pumping pipeline and air delivering pipeline is provided with lower pressure chamber balancing gate pit is connected to by a triple valve Inside, the triple valve are arranged on pressure chamber, and the wire sealing of ventage piezometer is that silicon rubber is first put into pipe, then Four wires are placed, after waiting Cure of Rubber, carry out the performing leak test of whole instrument.

3-5cm water is injected when carrying out certificate test, it is necessary in balancing gate pit, for saturation ventage piezometer, then will Ventage piezometer is placed in the water in balancing gate pit, and plans that classification applies malleation according to experiment, and it is to pass through gas transmission to apply malleation Pipeline is passed through compressed gas into balancing gate pit, and record data simultaneously carries out follow-up analysis.

The compressed gas that air delivering pipeline of the prior art is inputted it can be seen from above-mentioned experiment process is only by three The one outlet of port valve is directly acted in balancing gate pit, and balancing gate pit bottom is only loaded with 3-5cm water, therefore larger in air pressure When, situation pockety will occurs in the air pressure in balancing gate pit, and this can cause the liquid level in balancing gate pit that ringing effect occurs, Ventage piezometer will occur significantly to swing with liquid level, and this calibrating to ventage piezometer is not accurate enough, while can also device to hole The measurement accuracy of gap hydraulic gage impacts, or even damage ventage piezometer.

And be emphasized that and there was only static ventage piezometer nominal pressure chamber device at present, without dynamic pore Hydraulic gage examines and determine pressure chamber device, and its reason is：Existing calibrating installation is formed by triaxial cell's transformation, is caused dynamic The demarcation of ventage piezometer can not be realized under state pressure, there is following key issue：Air pressure and water can not be realized under single hole air inlet method Stable conversion between pressure is with being uniformly distributed.

There is no dynamic calibrating installation to hinder place and the failure of ground building in existing Geotechnical Engineering effective with destroying Evaluation.

Utility model content

In order to solve the above-mentioned technical problem, the purpose of this utility model is to provide a kind of dynamic pore hydraulic gage calibrating pressure Chamber device, to avoid causing the exciting for examining and determine liquid in pressure chamber body in gas input process, so as to ensure verification result Reliability, and avoid ventage piezometer to be examined and determine from being damaged in verification process.

To reach above-mentioned purpose, dynamic pore hydraulic gage provided by the utility model examines and determine pressure chamber device, including calibrating Pressure chamber body, described examine and determine are provided with pressure chamber, had inside the upper pressure chamber hollow at the top of pressure chamber body Gas distribution chamber, the gas distribution chamber is suitable for reading corresponding with the calibrating pressure chamber body, and in the gas distribution chamber It is provided with multiple air admission holes equally distributed in the gas distribution chamber, the air admission hole and the calibrating pressure chamber body Inside is connected, and the air inlet pipe being connected with the gas distribution chamber is provided with the upper pressure chamber.

Preferably, the upper pressure chamber upper surface offers the through hole connected with the calibrating pressure chamber body interior, institute Stating through hole includes through hole body and is directed away from the raised raised platform around a well in the calibrating pressure chamber body side, is offered on the raised platform around a well External screw thread, the through hole is in the state of not enabled, by screwing the sealing of the sealing nut on the raised platform around a well.

Preferably, multiple through holes are offered on the upper pressure chamber.

Preferably, in the through hole, including a water filling port for being used for the water filling into the pressure chamber, remaining described through hole It is the calibrating hole for coordinating with the sealing of the wire of ventage piezometer to be examined and determine.

Preferably, it is described calibrating pressure chamber body side wall on be further opened with being put into for standard water pressure gauge, and with the mark The standard water pressure gauge mounting hole that quasi- hydraulic gage sealing coordinates.

Preferably, in addition to for the wire of the ventage piezometer to be examined and determine to be sealedly attached in the calibrating hole Sealing connecting component, the sealing connecting component include：

Frustum rubber stopper, the frustum rubber stopper are embedded in the raised platform around a well in the calibrating hole, the frustum rubber stopper Fastened and formed along the detachable split of own axes by least two, and wire jam-packed is provided with the frustum rubber stopper Groove；

The rubber stopper clamp nut coordinated with the raised platform around a well screw thread in the calibrating hole.

Preferably, the bottom of the calibrating pressure chamber body is provided with lower pressure chamber, wherein, the calibrating pressure chamber body Cylindrical, the upper pressure chamber and the lower pressure chamber are rectangular, and the upper pressure chamber and the lower pressure chamber are each Corresponding right angle position offers a pair of tension holes, and every a pair described tense are built-in with through the upper pressure chamber in hole With the turnbuckle of the lower pressure chamber, the upper pressure chamber and the lower pressure chamber are pressed in institute by the turnbuckle respectively State the top and bottom of calibrating pressure chamber body.

Preferably, carrying bolt, the lower pressure chamber and the upper pressure are provided with a side of the upper pressure chamber It is also equipped with the carrying bolt on the corresponding side in the side of power chamber, carrying bolt and institute on the upper pressure chamber The carrying bolt stated on lower pressure chamber forms lateral support member.

Preferably, when the calibrating pressure chamber body is by the support member support, on the upper pressure chamber body A through hole at least row in the vertical direction is uniformly distributed.

Preferably, when the calibrating pressure chamber body is by the support member support, in the vertical direction, the upper pressure The equally distributed through hole of two row is symmetrically arranged with the middle part of power chamber；In the horizontal direction, the middle part of the upper pressure chamber It is symmetrically arranged with the equally distributed through hole of two row.

Preferably, when the calibrating pressure chamber body is by the support member support, in the vertical direction and level side Upwards, any one row through hole includes four, in horizontal direction in the two row through holes, close to the upper pressure cavity edge Any one of through hole as the water filling port.

Preferably, the air inlet pipe installation connected with the gas distribution chamber is offered on a side of the upper pressure chamber Mouthful, the air inlet pipe is connected on the air inlet pipe installing port by Quick-insertion type pipe joint, wherein, the Quick-insertion type pipe joint bag Outer layer nut portions and internal layer connecting portion are included, described internal layer connecting portion one end is for being threadedly coupled with the air inlet pipe installing port Threaded mounting end, the other end be for the air inlet pipe grafting inserted terminal.

Preferably, in addition to the delivery port for examining and determine pressure chamber body bottom portion is arranged on, is provided with out in the outlet Close valve.

It is understood that during ventage piezometer is examined and determine, by the dynamic high-pressure gas of air inlet pipe input by head Be introduced into gas distribution chamber, then gas by the air admission hole that is opened in gas distribution chamber even into calibrating pressure chamber sheet In vivo.Because air admission hole is uniformly opened in gas distribution chamber, therefore it is uniform, calibrating to examine and determine pressure chamber body interior air inlet Pressure in pressure chamber body suffered by liquid level is also uniform, and this just effectively prevent directly is pressed from single pipe to calibrating at present Power chamber body interior is passed through the liquid exciting phenomenon caused by pressed gas, and ventage piezometer to be examined and determine will not be produced and significantly put Dynamic, this can effectively improve the accuracy of ventage piezometer calibrating, so as to effectively prevent ventage piezometer damage to be examined and determine.

Brief description of the drawings

Fig. 1 is the overall structure of the dynamic pore hydraulic gage calibrating pressure chamber device disclosed in the utility model embodiment Schematic diagram；

Fig. 2 is layout structure schematic diagram of the through hole on upper pressure chamber disclosed in the utility model embodiment；

Fig. 3 is the structural representation of the upper pressure chamber disclosed in the utility model embodiment；

Fig. 4 is Fig. 3 schematic top plan view；

Fig. 5 is the structural representation inside the upper pressure chamber disclosed in the utility model embodiment；

Fig. 6 is Fig. 5 schematic top plan view；

Fig. 7 is the structural representation that pressure chamber body is examined and determine in Fig. 1；

Fig. 8 is the structural representation of lower pressure chamber in Fig. 1；

Fig. 9 is the structural representation of turnbuckle in Fig. 1；

Figure 10 is the structural representation of carrying bolt in Fig. 1；

Figure 11 is that the calibrating pressure chamber device in Fig. 1 turns over the structural representation for turning 90 degrees and standing upside down and placing；

Figure 12 is the structural representation of Quick-insertion type pipe joint in Fig. 1；

Figure 13 is the structural representation of half frustum rubber stopper disclosed in the utility model embodiment；

Figure 14 is the two and half frustum rubber stoppers and ventage piezometer to be examined and determine disclosed in the utility model embodiment Wire cooperation schematic diagram；

Figure 15 is the structural representation of rubber stopper clamp nut in Fig. 1；

Figure 16 be ventage piezometer to be examined and determine wire and through hole raised platform around a well sealed structural representation；

Figure 17 is the structural representation of the sealing nut in Fig. 1；

Figure 18 is the schematic diagram of the sealing nut in Fig. 1 and upper pressure cavity sealing structure.

Lower pressure chamber calibrating

Wherein, 01 is calibrating pressure chamber device, and 02 is sealing nut, and 03 is hexagon thin nut, and 04 is upper pressure chamber, and 05 is Quick-insertion type pipe joint, 06 is air inlet pipe, and 07 is standard water pressure gauge, and 08 is ball valve switch, and 09 is lower pressure chamber, and 10 be ball valve, 11 For the wire of ventage piezometer to be examined and determine, 12 be frustum rubber stopper, and 13 be rubber stopper clamp nut, and 14 be hex nut, 15 It is calibrating pressure chamber body for plain washer, 16,17 be turnbuckle, and 18 be carrying bolt, and 19 be hexagonal flange nut, and 20 be inspection Determine hole, 21 be standard water pressure gauge mounting hole, and 22 be water filling port, and 23 be air inlet pipe installing port, and 24 be delivery port, and 25 be raised platform around a well, 26 For carrying bolt mounting hole, 27 is tense hole, and 28 be gas distribution chamber, and 29 be air admission hole, and 30 be threaded mounting end, and 31 be grafting End, 32 be wire jam-packed groove, and 33 be half frustum rubber stopper.

Embodiment

Core of the present utility model is to provide a kind of dynamic pore hydraulic gage calibrating pressure chamber device, to avoid gas from inputting During cause examine and determine pressure chamber body in liquid exciting, so as to ensure the reliability of verification result, and avoid to be examined and determine Ventage piezometer damages in verification process.

In order that those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied The utility model is described in further detail for mode.

Fig. 1 to Fig. 6 is refer to, the dynamic pore hydraulic gage calibrating pressure chamber dress disclosed in the utility model embodiment Put, including calibrating pressure chamber body 16, the top of calibrating pressure chamber body 16 are provided with pressure chamber 04, as shown in fig. 1, on The inside of pressure chamber 04 has hollow gas distribution chamber 28, and gas distribution chamber 28 is with examining and determine the suitable for reading right of pressure chamber body 16 Should, and multiple air admission holes 29 equally distributed in gas distribution chamber 28 are provided with gas distribution chamber 28, in Fig. 5 and Fig. 6 Shown, air admission hole 29 connects with examining and determine the inside of pressure chamber body 16, is provided with upper pressure chamber 04 and the phase of gas distribution chamber 28 Air inlet pipe 06 even, as shown in fig. 1.

It will be appreciated to those of skill in the art that the calibrating pressure chamber device disclosed in above-described embodiment, in hole During hydraulic gage is examined and determine, the dynamic high-pressure gas inputted by air inlet pipe 06 will be first into gas distribution chamber 28, then Gas is by the air admission hole 29 that is opened in gas distribution chamber 28 even into in calibrating pressure chamber body 16.Due to air admission hole 29 Uniformly it is opened in gas distribution chamber 28, therefore it is uniform to examine and determine the inside air inlet of pressure chamber body 16, examines and determine pressure chamber body Pressure in 16 suffered by liquid level is also uniform, and this just effectively prevent at present from single pipe directly to calibrating pressure chamber body The liquid exciting phenomenon being passed through inside 16 caused by pressed gas, ventage piezometer to be examined and determine will not be produced and significantly swung, this The accuracy of ventage piezometer calibrating can be effectively improved, so as to effectively prevent ventage piezometer damage to be examined and determine.

It refer to Fig. 5, the air admission hole 29 in accompanying drawing is specifically provided with 4, and 4 air admission holes 29 are in gas distribution chamber 28 and inspection Opening position corresponding to the inside of constant-pressure chamber body 16 is uniformly distributed, and certainly, the quantity of air admission hole 29 is simultaneously without limitations, can basis It is actually needed and opens up suitable number of air admission hole 29；Gas it can be seen from Fig. 5 disclosed in the utility model embodiment Distribution cavity 28 is annular in shape, and as needed, the gas distribution chamber 28 can include a ring or multiple rings, annular gas distribution cavity 28 have specific gas streamline, change and trigger water surface concussion in conventional device in single hole air inlet dynamic pressure transmittance process With the phenomenon of torrent, meanwhile, based on air flue streamline, air inlet 29 is laid out and the repetition test such as quantity, height of water level is with rationally setting Meter, effective guarantee dynamic air pressure are solved to the stationarity of hydraulic pressure transient state transmission and the uniformity of cavity space pressure distribution The dynamic pressure key that quick steady-state converts between gas and water body is asked.Certainly, gas distribution chamber 28 can be arranged to other Shape, such as circle, rectangle etc..

As shown in Figure 3, the upper surface of upper pressure chamber 04 offers the through hole connected with the inside of calibrating pressure chamber body 16, And through hole includes the through hole body raised platform around a well 25 raised with calibrating pressure chamber body side is directed away from, and (through hole can be flanging bore Or be molded using other modes), external screw thread is offered on raised platform around a well 25, in through hole not enabled, is screwed on raised platform around a well 25 Sealing nut 02 seals.Certainly, sealing nut 02 is with the connection procedure of raised platform around a well 25, can also set the thin spiral shell of hexagonal therebetween Mother 03 is used as pad.

Further, Fig. 3 to Fig. 6 is refer to, multiple structure identical through holes are offered on upper pressure chamber 04, at these In through hole, including a water filling port 22 for being used for the water filling into calibrating pressure chamber body 16, remaining through hole are to be used for treating Examine and determine the calibrating hole 20 that the sealing of wire 11 of ventage piezometer coordinates.

As shown in Figures 1 and 2, examine and determine and be further opened with being put into for standard water pressure gauge in the side wall of pressure chamber body 16, and The standard water pressure gauge mounting hole 21 coordinated with standard water pressure gauge sealing, standard water pressure gauge mounting hole 21 are used to supply standard water pressure gauge Calibrating pressure chamber body 16 is put into, standard water pressure gauge is used for for ventage piezometer to be examined and determine as reference sensor, to carry The Supreme People's Procuratorate determines accuracy.

Standard water pressure gauge is high range, high accuracy, the standard water pressure gauge of high frequency range, for real-time accurate test pressure intracavitary The dynamic change of hydraulic pressure, normative reference is provided to be accredited the dynamic linearity of ventage piezometer and calibration, instead of conventional dress Put middle by the way of exterior thereto pressure or intracavity gas pressure monitoring, solve dynamic error between hydraulic pressure and air pressure and cause The key issue that the demarcation of ventage piezometer dynamic property can not be realized, it is the accurate measurements and ventage piezometer of intracavitary water body pressure Demarcation provide reference data.

Sealing between the wire 11 of ventage piezometer to be examined and determine and calibrating hole 20 needs to use seal assembly, the sealing group Part includes frustum rubber stopper 12 and rubber stopper clamp nut 13, refer to Fig. 1, Figure 13 and Figure 14, the frustum rubber stopper 12 It is embedded into calibrating hole 20, frustum rubber stopper 12 is at least fastened by two splits and formed, and certainly, can also be fastened by more splits Formed, by taking two splits as an example, as shown in figures 13 and 14, the axial location of half frustum rubber stopper 33 is provided with for leading The wire jam-packed groove 32 that line jam-packed seals, rubber stopper clamp nut 13 and the screw thread of raised platform around a well 25 in calibrating hole 20 coordinate, to bore Mesa-shaped rubber stopper 12 is pressed in calibrating hole 20, is assembled for convenience, and the small end of frustum rubber stopper 12 fills in calibrating hole down 20, as shown in Figure 16.

Above-mentioned sealing means not only cause ventage piezometer to be examined and determine easily to dismount, and frustum rubber stopper 12 can be with Recycling, compared to the mode for breaking silica gel in the prior art, dismounting is more convenient, and cost is lower.

Fig. 1 is refer to, the dynamic pore hydraulic gage calibrating pressure chamber device disclosed in the utility model, examines and determine pressure chamber The bottom of body 16 is provided with lower pressure chamber 09, wherein, calibrating pressure chamber body 16 is cylindrical, upper pressure chamber 04 and lower pressure Chamber 09 is rectangular, and upper pressure chamber 04 offers a pair of tension holes 27 with each corresponding right angle position of lower pressure chamber 09, As shown in Fig. 1 to Fig. 8, the turnbuckle through upper pressure chamber 04 and lower pressure chamber 09 is built-in with every a pair of tensions hole 27 17, one end of turnbuckle 17 is nut, and the other end is connected by hex nut 14 with upper pressure chamber 04 and lower pressure chamber 09, and Upper pressure chamber 04 and lower pressure chamber 09 are pressed on to the top and bottom of calibrating pressure chamber body 16 respectively.

In the present embodiment, carrying bolt 18, lower pressure chamber 09 and upper pressure are provided with a side of upper pressure chamber 04 It is provided with chamber 04 on the corresponding side of one side of carrying bolt 18 and is also equipped with carrying bolt 18, as shown in Figure 1, upper pressure The carrying bolt 18 on carrying bolt 18 and lower pressure chamber 09 on power chamber 04 constitutes lateral support member.

Specifically, the side on upper pressure chamber 04 is provided with two carrying bolt mounting holes 26, the side of lower pressure chamber 09 On be also equipped with two carrying bolt mounting holes 26, total of four carrying bolt 18 forms above-mentioned lateral support member.

Further, when the calibrating pressure chamber body 16 is by support member support, the through hole on upper pressure chamber 04 is extremely Rare row in the vertical direction is uniformly distributed.

Lateral support member is combined with the equally distributed through hole of in the vertical direction, can effectively be controlled and is injected into calibrating The volume of air free water in pressure chamber body 16, specifically, when needing the water flowing into calibrating pressure chamber body 16, examine and determine pressure Chamber body 16 is stood up, that is to say, that lower pressure chamber 09 and turnbuckle 17 support whole calibrating pressure chamber body 16, wait to be passed through Calibrating pressure chamber body 16 is rotated by 90 ° rear side afterwards for a period of time and put by air free water water, and lateral support member support is whole when side is put Pressure chamber body 16 is examined and determine, then opens the through hole of desired height position, if water level has reached the predetermined altitude, calibrating pressure Air free water in power chamber body 16 will overflow from the through hole, can now stop noting air free water into calibrating pressure chamber body 16, And water level can be made to be maintained at predetermined altitude through hole closure after the through hole not flowing water；If water level does not reach the predetermined height also Degree, then continue the water filling into calibrating pressure chamber body 16, until the lead to the hole site there are flowing out, then it is pre- to show that water level reaches this Positioning is put, and can stop water flowing.

Because when examining and determine pressure chamber body 16 by support member support, the through hole at least one on upper pressure chamber 04 is listed in It is uniformly distributed on vertical direction, this can is easily realized and examining and determine water level control in precalculated position, such as controlling water level 1/2,1/3,2/3 etc. of pressure chamber body volume.

In dynamic pore hydraulic gage calibrating pressure chamber device disclosed in the utility model embodiment, by supporting member branch During support, in the vertical direction, the middle part of upper pressure chamber 04 is symmetrically arranged with the equally distributed through hole of two row, in the horizontal direction, The middle part of upper pressure chamber 04 is also symmetrically arranged with the equally distributed through hole of two row, such as Fig. 1 and to shown in Fig. 4, on vertical direction The two row through holes on the two row through hole and horizontal direction, the through hole for the opening position that intersects share.

Fig. 1 to Fig. 4 is refer to, when examining and determine pressure chamber body 16 by support member support, any one row on vertical direction Through hole includes four, and the through hole of any one row also includes four, in horizontal direction in two row through holes in horizontal direction, close to upper pressure Any one through hole at the edge of power chamber 04 can be used as water filling port 22.

As can be seen that calibrating hole 20 includes 11, therefore 11 holes can at most be completed simultaneously by a certificate test The calibration operation of gap hydraulic gage, this make it that the calibrating efficiency of ventage piezometer is lifted at double.

Fig. 1 and Fig. 8 are refer to, the bottom surface of lower pressure chamber 09 can be only plane, also can separately set supporting mechanism, lower pressure chamber 09 bottom may be provided with cylindric support protrusion, and the center of cylindric support protrusion and the center weight of lower pressure chamber 09 Close.

As shown in Fig. 1 and Figure 12, the air inlet connected with gas distribution chamber is offered on a side of upper pressure chamber 04 Pipe installing port 23, air inlet pipe 06 are connected on air inlet pipe installing port 23 by Quick-insertion type pipe joint 05, wherein, Quick-insertion type pipe joint 05 includes outer layer nut portions and internal layer connecting portion, and internal layer connecting portion one end is the screw thread for being threadedly coupled with air inlet pipe installing port Installation end 30, the other end are the inserted terminal 31 for air inlet pipe grafting.

After calibration operation completion, the air free water in discharge calibrating pressure chamber body 16 for convenience, in the present embodiment Delivery port 24 is provided with the bottom of calibrating pressure chamber body 16, as shown in fig. 1, and switch is additionally provided with delivery port 24 Valve, the switch valve are specially ball valve 10, and opening and closing for ball valve 10 can be realized by operating ball valve switch 08.

In addition, a kind of dynamic pore hydraulic gage calibration method is also disclosed in the utility model, the calibration method needs Pressure chamber device is examined and determine using the dynamic pore hydraulic gage disclosed in above-described embodiment, and the calibration method includes following step Suddenly：

1) the calibrating hole 20 is sealed by sealing nut 02；

2) air free water is injected into calibrating pressure chamber body 16 from water filling port 22；

3) fell and (put side) calibrating pressure chamber body 16, and supports whole calibrating pressure chamber body by lateral support member 16, the calibrating hole 20 that predetermined water storage is highly located is opened, if there are flowing out, water of the discharge higher than the calibrating hole 20 of the opening；If Anhydrous outflow, then continue to add water to water and flowed out from the calibrating hole 20 of the opening；

4) forward direction of calibrating pressure chamber body 16 is placed into (standing up), whole inspection is supported by turnbuckle 17 and lower pressure chamber 09 Constant-pressure chamber device；

5) according to the quantity of ventage piezometer to be measured, open the calibrating hole 20 of corresponding number, by ventage piezometer to be measured by The bottom of calibrating pressure chamber body 16 is put into calibrating hole 20；

6) by the wire 11 of ventage piezometer to be examined and determine and the calibrating encapsulation process of hole 20；

7) connect air inlet pipe 06, and according to test requirements document be passed through gas treat calibrating ventage piezometer examined and determine.

By studying repeatedly, predetermined water storage is highly specially in step 2) in the utility model：In lateral support mechanism branch When supportting the calibrating pressure chamber body 16, the 2/3 of the upper height of pressure chamber 04, when water level is less than the height, air inlet pipe 06 inputs Exciting easily is caused to air free water during the larger gas of pressure, when water level exceeds the height, a part for input air pressure will The kinetic energy of water is converted into, forms water turbulence, so as to have a negative impact to verification process.

In the step 6) of above-described embodiment, the sealing of the wire 11 of ventage piezometer to be examined and determine with examining and determine hole 20 it is specific Process is：Split is fastened to form frustum rubber stopper 12, and the wire 11 of ventage piezometer to be examined and determine is squeezed in wire and squeezes In tight groove 32, the small end of frustum rubber stopper 12 is filled in the raised platform around a well 25 in calibrating hole 20 down, then by rubber stopper clamp nut 13 It is tightened on the raised platform around a well 25 in calibrating hole 20.

In the above-described embodiments, the process of connection air inlet pipe 06 is in step 7)：Air inlet pipe 06 is inserted into push-in pipe to connect In first 05, and air inlet pipe 06 is set to be clamped in Quick-insertion type pipe joint 05.

Pressure chamber device is examined and determine to dynamic pore hydraulic gage provided by the utility model above and calibration method is carried out It is discussed in detail.Specific case used herein is set forth to principle of the present utility model and embodiment, and the above is implemented The explanation of example is only intended to help and understands method and its core concept of the present utility model.It should be pointed out that for the art Those of ordinary skill for, on the premise of the utility model principle is not departed from, can also to the utility model carry out it is some Improve and modification, these improvement and modification are also fallen into the protection domain of the utility model claims.

Claims (13)

1. a kind of dynamic pore hydraulic gage examines and determine pressure chamber device, it is characterised in that described including calibrating pressure chamber body (16) Pressure chamber (04) is provided with the top of calibrating pressure chamber body (16), there is hollow gas inside the upper pressure chamber (04) Distribution cavity (28), the gas distribution chamber (28) is suitable for reading corresponding with the calibrating pressure chamber body (16), and the gas Multiple air admission holes (29) equally distributed in the gas distribution chamber (28), the air admission hole are provided with distribution cavity (28) (29) inside with the calibrating pressure chamber body (16) connects, and is provided with the upper pressure chamber (04) and is distributed with the gas The air inlet pipe (06) that chamber (28) is connected.

2. dynamic pore hydraulic gage according to claim 1 examines and determine pressure chamber device, it is characterised in that the upper pressure chamber (04) upper surface offers through hole connect with inside calibrating pressure chamber body (16), the through hole include through hole body with The raised raised platform around a well (25) in the calibrating pressure chamber body side is directed away from, external screw thread is offered on the raised platform around a well (25), it is described Through hole is in the state of not enabled, by screwing the sealing of the sealing nut (02) on the raised platform around a well.

3. dynamic pore hydraulic gage according to claim 2 examines and determine pressure chamber device, it is characterised in that the upper pressure chamber (04) multiple through holes are offered on.

4. dynamic pore hydraulic gage according to claim 3 examines and determine pressure chamber device, it is characterised in that in the through hole, Including one be used for it is described calibrating pressure chamber body (16) interior water filling water filling port (22), remaining described through hole be used for The calibrating hole (20) that wire (11) sealing of ventage piezometer to be examined and determine coordinates.

5. dynamic pore hydraulic gage according to claim 4 examines and determine pressure chamber device, it is characterised in that the calibrating pressure It is further opened with being put into for standard water pressure gauge in the side wall of chamber body (16), and the standard water coordinated with standard water pressure gauge sealing Pressure meter mounting hole (21).

6. dynamic pore hydraulic gage according to claim 5 examines and determine pressure chamber device, it is characterised in that also includes being used to incite somebody to action The wire (11) of the ventage piezometer to be examined and determine is sealedly attached to the sealing connecting component in calibrating hole (20), described close Envelope connection component includes：

Frustum rubber stopper (12), the raised platform around a well (25) of embedded calibrating hole (20) of the frustum rubber stopper (12) is interior, described Frustum rubber stopper (12) is fastened along the detachable split of own axes by least two and formed, and the frustum rubber stopper (12) wire jam-packed groove (32) is provided with；

The rubber stopper clamp nut (13) coordinated with raised platform around a well (25) screw thread of calibrating hole (20).

7. dynamic pore hydraulic gage according to claim 6 examines and determine pressure chamber device, it is characterised in that the calibrating pressure The bottom of chamber body (16) is provided with lower pressure chamber (09), wherein, it is described calibrating pressure chamber body (16) it is cylindrical, it is described on Pressure chamber (04) and the lower pressure chamber (09) are rectangular, and the upper pressure chamber (04) and the lower pressure chamber (09) are each Corresponding right angle position offers a pair of tension holes (27), and every a pair described tense are built-in with hole (27) through described Upper pressure chamber (04) and the turnbuckle (17) of the lower pressure chamber (09), the turnbuckle (17) is by the upper pressure chamber (04) and the lower pressure chamber (09) is pressed in the top and bottom of the calibrating pressure chamber body (16) respectively.

8. dynamic pore hydraulic gage according to claim 7 examines and determine pressure chamber device, it is characterised in that the upper pressure chamber (04) carrying bolt (18), the side of the lower pressure chamber (09) and the upper pressure chamber (04) are provided with a side It is also equipped with the carrying bolt (18) on corresponding side, carrying bolt (18) and institute on the upper pressure chamber (04) The carrying bolt (18) stated on lower pressure chamber (09) forms lateral support member.

9. dynamic pore hydraulic gage according to claim 8 examines and determine pressure chamber device, it is characterised in that in the calibrating pressure When power chamber body (16) is by the support member support, the through hole at least one on the upper pressure chamber (04) is listed in vertical direction On be uniformly distributed.

10. dynamic pore hydraulic gage according to claim 9 examines and determine pressure chamber device, it is characterised in that in the calibrating When pressure chamber body (16) is by the support member support, in the vertical direction, the middle part of the upper pressure chamber (04) is symmetrically set It is equipped with the equally distributed through hole of two row；In the horizontal direction, the middle part of the upper pressure chamber (04) is also symmetrically arranged with two Arrange the equally distributed through hole.

11. dynamic pore hydraulic gage according to claim 10 examines and determine pressure chamber device, it is characterised in that in the calibrating When pressure chamber body (16) is by the support member support, in the vertical direction and horizontal direction, any one row through hole Include four, in horizontal direction in the two row through holes, close to any one of logical of upper pressure chamber (04) edge Hole is as the water filling port (22).

12. dynamic pore hydraulic gage according to claim 1 examines and determine pressure chamber device, it is characterised in that the upper pressure The air inlet pipe installing port (23) connected with the gas distribution chamber (28), the air inlet pipe are offered on one side of chamber (04) (06) it is connected to by Quick-insertion type pipe joint (05) on the air inlet pipe installing port (23), wherein, the Quick-insertion type pipe joint (05) include outer layer nut portions and internal layer connecting portion, described internal layer connecting portion one end be for the air inlet pipe installing port (23) threaded mounting end (30) of threaded connection, the other end are the inserted terminal (31) for the air inlet pipe (06) grafting.

13. the dynamic pore hydraulic gage calibrating pressure chamber device according to claim 1-4,6-12 any one, its feature It is, in addition to is arranged on the delivery port (24) of described calibrating pressure chamber body (16) bottom, is set on the delivery port (24) There is switch valve.