CN107338777A - A kind of test device for water injection test - Google Patents
A kind of test device for water injection test Download PDFInfo
- Publication number
- CN107338777A CN107338777A CN201710730966.4A CN201710730966A CN107338777A CN 107338777 A CN107338777 A CN 107338777A CN 201710730966 A CN201710730966 A CN 201710730966A CN 107338777 A CN107338777 A CN 107338777A
- Authority
- CN
- China
- Prior art keywords
- water
- static sounding
- feeler lever
- bar
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000012360 testing method Methods 0.000 title claims abstract description 66
- 238000002347 injection Methods 0.000 title claims abstract description 33
- 239000007924 injection Substances 0.000 title claims abstract description 33
- 230000003068 static effect Effects 0.000 claims abstract description 56
- 230000035939 shock Effects 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 abstract description 5
- 238000007373 indentation Methods 0.000 abstract description 5
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of test device for water injection test, the device includes base, a pair of hydraulic cylinders being arranged vertically at respectively on base, is arranged on the feeler lever mounting bracket being connected at the top of two hydraulic cylinders and with the piston drive of hydraulic cylinder, the static sounding bar being arranged vertically on feeler lever mounting bracket and water injecting mechanism, and the water injecting mechanism from top to bottom runs through the inside of static sounding bar and is connected with the bottom of static sounding bar.Compared with prior art, the present invention uses hydraulic driving mode, can be rapidly by static sounding bar and wall-protecting shock tube indentation test depth, and pass through the water injecting mechanism directly water filling into the hole below static sounding bar, you can carry out water injection test, which step is simple, it is convenient and swift, it is easily operated, substantially increase the efficiency of in-situ test, and the outer wall of static sounding bar and wall-protecting shock tube can remain the close contact with the soil body, water-stagnating effect is good.
Description
Technical field
The invention belongs to soil in-situ technical field of measurement and test, is related to a kind of test device for water injection test.
Background technology
Soil in-situ test is one of important means of geotechnical engineering investigation, be it is the location of original in rock-soil layer,
In the case of basic holding natural structure, natural moisture content and natural strain condition, the property index of ground is determined.Wherein,
Water injection test is and the water filling into drilling by being drilled to inside soil body, to determine the in-situ test side of rock-soil layer infiltration coefficient
Method.Water injection test is generally divided into drilling constant head water injection test and drilling precipitation head water injection test, and drill constant head water injection test
It is in the case where head height keeps immobilizing, the water injection rate for measuring rock-soil layer changes with time rate, and drill precipitation head
Water injection test is to measure head height to change with time rate, and then determines the infiltration coefficient of rock-soil layer.In engineer applied, note
The general process of water test is：Rig pore-creating is first used, after fill stratum is drilled, starts setting of casing every the underground in firmly fill stratum
Water and protection hole wall；Then institute's optional test rock-soil layer is drilled, water injection test can be carried out.In addition, will also be according to experiment rock
Soil layer species and wall stability, decide whether tripping in wall-protecting shock tube, to prevent hole wall collapse.Which complex steps, operation are multiple
Miscellaneous, testing efficiency is low, and due to being setting of casing after piercing, it is difficult to ensureing that sleeve pipe is in close contact with soil layer, water-stagnating effect is poor,
Reduce the accuracy of result of the test.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of testing efficiency is high and
The good test device for water injection test of measuring accuracy.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of test device for water injection test, the device include base, are arranged vertically at bottom respectively a pair
Hydraulic cylinder on seat, be arranged on be connected at the top of two hydraulic cylinders and with the piston drive of hydraulic cylinder feeler lever mounting bracket, along vertical side
To the static sounding bar and water injecting mechanism being arranged on feeler lever mounting bracket, the water injecting mechanism from top to bottom runs through static sounding bar
Inside and be connected with the bottom of static sounding bar.Base is fixed at test point, by the receipts for controlling hydraulic cylinder piston
Contracting, drive feeler lever mounting bracket and static sounding bar to move downward, indentation test depth, be lifted up static sounding bar one afterwards
Set a distance, you can by water injecting mechanism water filling into the hole below static sounding bar, carry out water injection test.
Multiple earth anchors are uniformly laid with described base.Base is fixed at test point by earth anchor, ensures test
When stability.
Described feeler lever mounting bracket include being arranged horizontally at the top of two hydraulic cylinders and with the piston drive of hydraulic cylinder
The cross bar of connection, the montant being disposed in parallel in for a pair on cross bar and the feeler lever fixed plate for being arranged on two montant bottoms, it is described
Static sounding bar is arranged vertically in feeler lever fixed plate.Feeler lever mounting bracket uses symmetrical structure, ensures static sounding bar
The stationarity of motion.
As preferable technical scheme, described cross bar is fixedly connected with static sounding bar.
Described water injecting mechanism includes the from top to bottom water pipe inside static sounding bar, the flow being arranged on water pipe
Controller and the water tank being connected with the top of water pipe.After static sounding bar is moved to predetermined depth, the water in water tank exists
Under the control of flow controller, through in the hole below water pipe injection static sounding bar.
Water pump is additionally provided with described water pipe, the water pump is between flow controller and water tank.By the pressurization of water pump,
By in the hole below the water injection static sounding bar in water tank.
The bottom of described static sounding bar is provided with wall-protecting shock tube, and described water injecting mechanism is connected with the inside of wall-protecting shock tube
It is logical.Wall-protecting shock tube is the steel pipe that multiple holes are uniformly offered on tube wall, has both been easy to the infiltration of water, and and can enough prevents from testing rock-soil layer
Hole wall collapse, ensure the accuracy of measurement result.
The external diameter of described static sounding bar is equal with the external diameter of wall-protecting shock tube.Ensure in static sounding bar and wall-protecting shock tube
During together pressing downward in the soil body and being lifted up certain distance, the outer wall of static sounding bar and wall-protecting shock tube all the time with
The soil body is in close contact, and water-stagnating effect has been effectively ensured.
The bottom of described static sounding bar is provided with feeler lever boss, and feeler lever boss is set at the top of described wall-protecting shock tube
Outside, and be fixedly connected with feeler lever boss.Static sounding bar is fixedly connected by feeler lever boss with wall-protecting shock tube, ensures retaining wall
Floral tube can be synchronized with the movement with static sounding bar.
The outer wall of described feeler lever boss is provided with external screw thread, and the inwall of described wall-protecting shock tube is provided with and external screw thread phase
The internal thread of adaptation.Mode is connected through a screw thread, is easy to the dismounting of static sounding bar and wall-protecting shock tube.Can according to actual conditions,
From different length, the wall-protecting shock tube of different pore size distribution.
The bottom surface of described feeler lever boss is provided with distance measuring sensor.Distance measuring sensor can monitor static sounding bar in real time
Height of water level in lower square hole, according to the SEA LEVEL VARIATION of different time, or when keeping water level identical according to the water-carrying capacity of injection with
The rate of change of time, determine the infiltration coefficient of the soil body.
Wall-protecting shock tube is arranged on quiet in practical application, base is fixed at test point using earth anchor by the present invention
The bottom of power sounding rod；By controlling the contraction of hydraulic cylinder piston, drive feeler lever mounting bracket, static sounding bar and wall-protecting shock tube to
Lower motion, indentation test depth are lifted up static sounding bar and wall-protecting shock tube certain distance afterwards, and by water pump by water
Water in case is injected in the hole below static sounding bar through water pipe, is changed according to the water level in borehole of different time, or in retaining hole
Changed with time rate according to the water-carrying capacity of injection when water level is identical, determine the infiltration coefficient of the soil body.
Compared with prior art, the invention has the characteristics that：
1) use hydraulic driving mode, can rapidly by static sounding bar and wall-protecting shock tube indentation test depth, and
Pass through the water injecting mechanism directly water filling into the hole below static sounding bar, you can carry out water injection test, which step is simple, side
Just it is quick, it is easily operated, substantially increase the efficiency of in-situ test；
2) outer wall of static sounding bar and wall-protecting shock tube can remain the close contact with the soil body, substantially increase only
Water effect, further ensure the accuracy of measuring accuracy and result of the test；
3) static sounding bar serves drilling and water stopping function simultaneously, and does not need the setting of casing again that first drills, time saving and energy saving, right
In shortening construction period, reduce cost, increase economic efficiency with remarkable effect.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structural representation that wall-protecting shock tube coordinates with static sounding bar in the present invention；
Description of symbols in figure：
1-base, 2-hydraulic cylinder, 3-feeler lever mounting bracket, 301-cross bar, 302-montant, 303-feeler lever fixed plate,
4-static sounding bar, 401-feeler lever boss, 5-earth anchor, 6-water pipe, 7-flow controller, 8-water tank, 9-water pump,
10-wall-protecting shock tube, 11-distance measuring sensor.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
Embodiment：
A kind of test device for water injection test as shown in Figure 1, the device is including base 1, a pair respectively along vertical
Hydraulic cylinder 2 that direction is arranged on base 1, it is arranged on the top of two hydraulic cylinder 2 and the feeler lever being connected with the piston drive of hydraulic cylinder 2
Mounting bracket 3, the static sounding bar 4 being arranged vertically on feeler lever mounting bracket 3 and water injecting mechanism, the water injecting mechanism is by upper
And it is connected through the inside of static sounding bar 4 and with the bottom of static sounding bar 4 down.
Wherein, multiple earth anchors 5 are uniformly laid with base 1.Feeler lever mounting bracket 3 includes being arranged horizontally at two hydraulic pressure
The top of cylinder 2 and the cross bar 301 being connected with the piston drive of hydraulic cylinder 2, the montant 302 that is disposed in parallel in for a pair on cross bar 301 with
And the feeler lever fixed plate 303 of the bottom of two montant 302 is arranged on, static sounding bar 4 is arranged vertically at feeler lever fixed plate 303
On.
Water injecting mechanism includes the from top to bottom water pipe 6 inside static sounding bar 4, the flow control being arranged on water pipe 6
Device 7 processed and the water tank 8 being connected with the top of water pipe 6.Water pump 9 is additionally provided with water pipe 6, the water pump 9 is located at flow controller 7
Between water tank 8.
As shown in Fig. 2 the bottom of static sounding bar 4 is provided with wall-protecting shock tube 10, water injecting mechanism and the inside of wall-protecting shock tube 10
It is connected.The external diameter of static sounding bar 4 is equal with the external diameter of wall-protecting shock tube 10.The bottom of static sounding bar 4 is provided with feeler lever boss
401, the top of wall-protecting shock tube 10 is set in the outside of feeler lever boss 401, and is fixedly connected with feeler lever boss 401.Feeler lever boss
401 outer wall is provided with external screw thread, and the inwall of wall-protecting shock tube 10 is provided with the internal thread being adapted with external screw thread.
The bottom surface of feeler lever boss 401 is provided with distance measuring sensor 11.
In practical application, base 1 is fixed at test point using earth anchor 5, and wall-protecting shock tube 10 is arranged on static(al)
The bottom of sounding rod 4；By controlling the contraction of the piston of hydraulic cylinder 2, feeler lever mounting bracket 3, static sounding bar 4 and wall-protecting shock tube are driven
10 move downward, indentation test depth, are lifted up static sounding bar 4 and the certain distance of wall-protecting shock tube 10 afterwards, and pass through
Water pump 9 injects the water in water tank 8 in the hole of the lower section of static sounding bar 4 through water pipe 6, is become according to the water level in borehole of different time
Change, or keep being changed with time rate according to the water-carrying capacity of injection when water level in borehole is identical, determine the infiltration coefficient of the soil body.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using invention.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel do not depart from improvement that scope made and modification all should be the present invention's according to the announcement of the present invention
Within protection domain.
Claims (10)
1. a kind of test device for water injection test, it is characterised in that the device is including base (1), a pair respectively along vertical
Hydraulic cylinder (2) that direction is arranged on base (1), it is arranged at the top of two hydraulic cylinders (2) and connects with the piston drive of hydraulic cylinder (2)
The feeler lever mounting bracket (3) that connects, the static sounding bar (4) being arranged vertically on feeler lever mounting bracket (3) and water injecting mechanism,
The water injecting mechanism from top to bottom runs through the inside of static sounding bar (4) and is connected with the bottom of static sounding bar (4).
A kind of 2. test device for water injection test according to claim 1, it is characterised in that described base (1)
On be uniformly laid with multiple earth anchors (5).
A kind of 3. test device for water injection test according to claim 1, it is characterised in that described feeler lever installation
Frame (3) includes being arranged horizontally at the cross bar being connected at the top of two hydraulic cylinders (2) and with the piston drive of hydraulic cylinder (2)
(301), a pair of montants (302) being disposed in parallel on cross bar (301) and it is arranged on the feeler lever of two montants (302) bottom and fixes
Plate (303), described static sounding bar (4) are arranged vertically in feeler lever fixed plate (303).
A kind of 4. test device for water injection test according to claim 1, it is characterised in that described water injecting mechanism
Including from top to bottom run through the internal water pipe (6) of static sounding bar (4), the flow controller (7) being arranged on water pipe (6) and
The water tank (8) being connected with the top of water pipe (6).
A kind of 5. test device for water injection test according to claim 4, it is characterised in that described water pipe (6)
On be additionally provided with water pump (9), the water pump (9) is located between flow controller (7) and water tank (8).
A kind of 6. test device for water injection test according to claim 1, it is characterised in that described static sounding
The bottom of bar (4) is provided with wall-protecting shock tube (10), and described water injecting mechanism is connected with the inside of wall-protecting shock tube (10).
A kind of 7. test device for water injection test according to claim 6, it is characterised in that described static sounding
The external diameter of bar (4) is equal with the external diameter of wall-protecting shock tube (10).
A kind of 8. test device for water injection test according to claim 6, it is characterised in that described static sounding
The bottom of bar (4) is provided with feeler lever boss (401), and the outer of feeler lever boss (401) is set at the top of described wall-protecting shock tube (10)
Portion, and be fixedly connected with feeler lever boss (401).
A kind of 9. test device for water injection test according to claim 8, it is characterised in that described feeler lever boss
(401) outer wall is provided with external screw thread, and the inwall of described wall-protecting shock tube (10) is provided with the internal thread being adapted with external screw thread.
10. a kind of test device for water injection test according to claim 8, it is characterised in that described feeler lever is convex
The bottom surface of platform (401) is provided with distance measuring sensor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730966.4A CN107338777A (en) | 2017-08-23 | 2017-08-23 | A kind of test device for water injection test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710730966.4A CN107338777A (en) | 2017-08-23 | 2017-08-23 | A kind of test device for water injection test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107338777A true CN107338777A (en) | 2017-11-10 |
Family
ID=60215716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710730966.4A Pending CN107338777A (en) | 2017-08-23 | 2017-08-23 | A kind of test device for water injection test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107338777A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893411A (en) * | 2017-11-21 | 2018-04-10 | 徐州华显凯星信息科技有限公司 | A kind of drilling hole and injecting water experiment auxiliary detection device and its application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858074A (en) * | 2010-06-10 | 2010-10-13 | 上海市城市建设设计研究院 | Construction method and device for on-site water injection test |
| CN201671622U (en) * | 2010-05-07 | 2010-12-15 | 西安科技大学 | Coal mine cover rock water guide slit band uphole observation instrument |
| CN203307790U (en) * | 2013-05-24 | 2013-11-27 | 铁道第三勘察设计院集团有限公司 | Probe guide sleeve of light static sounding machine |
| JP2014121353A (en) * | 2012-12-20 | 2014-07-03 | Panasonic Corp | Tableware washer |
| CN106092749A (en) * | 2016-06-03 | 2016-11-09 | 东北大学 | A kind of anchor rod drawing and measure on stress pulse assay device and method |
| CN207228087U (en) * | 2017-08-23 | 2018-04-13 | 上海山南勘测设计有限公司 | A kind of test device for water injection test |
-
2017
- 2017-08-23 CN CN201710730966.4A patent/CN107338777A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671622U (en) * | 2010-05-07 | 2010-12-15 | 西安科技大学 | Coal mine cover rock water guide slit band uphole observation instrument |
| CN101858074A (en) * | 2010-06-10 | 2010-10-13 | 上海市城市建设设计研究院 | Construction method and device for on-site water injection test |
| JP2014121353A (en) * | 2012-12-20 | 2014-07-03 | Panasonic Corp | Tableware washer |
| CN203307790U (en) * | 2013-05-24 | 2013-11-27 | 铁道第三勘察设计院集团有限公司 | Probe guide sleeve of light static sounding machine |
| CN106092749A (en) * | 2016-06-03 | 2016-11-09 | 东北大学 | A kind of anchor rod drawing and measure on stress pulse assay device and method |
| CN207228087U (en) * | 2017-08-23 | 2018-04-13 | 上海山南勘测设计有限公司 | A kind of test device for water injection test |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893411A (en) * | 2017-11-21 | 2018-04-10 | 徐州华显凯星信息科技有限公司 | A kind of drilling hole and injecting water experiment auxiliary detection device and its application method |
| CN107893411B (en) * | 2017-11-21 | 2020-10-20 | 徐州华显凯星信息科技有限公司 | Auxiliary detection device for water injection test of drill hole and use method thereof |
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