CN205653774U - On --spot drilling water injection test's simple and easy device - Google Patents
On --spot drilling water injection test's simple and easy device Download PDFInfo
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- CN205653774U CN205653774U CN201620460241.9U CN201620460241U CN205653774U CN 205653774 U CN205653774 U CN 205653774U CN 201620460241 U CN201620460241 U CN 201620460241U CN 205653774 U CN205653774 U CN 205653774U
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Abstract
The utility model relates to a ground body permeability in situ test technical field especially relates to on - -spot drilling water injection test's simple and easy device. The utility model discloses an on - -spot drilling water injection test's simple and easy device, including drilling, drilling includes the test section, and the work coat pipe is installed to the drilling inner wall at position more than the test section, and the inner wall of drilling is hugged closely to the outer wall of work coat pipe, and porose bottom cushion layer is backfilled to the hole section below the test section. Owing to set up the work coat pipe, can improve the stability of drilling, prevent to drill and collapse to work coat pipe also has the effect of stagnant water, and the water that can prevent to pour into into drilling is from the drilling pore wall at position more than the test section to the internal infiltration of ground, owing to set up hole bottom cushion layer, bring the disturbance to the test section hole bottom in can preventing drilling process to influence the test result, the work coat pipe combines with hole bottom cushion layer, can make clear the test section, improves the degree of accuracy of test result, and the utility model discloses simple structure can improve the installation effectiveness of experimental facilities.
Description
Technical field
This utility model relates to Rock And Soil permeability in-situ testing technique field, particularly relates to the simple dress of on-the-spot drilling hole and injecting water experiment
Put.
Background technology
Drilling hole and injecting water experiment is to test section water filling by boring, it is ensured that fix-head height-measuring injects the water yield or the amount of rock-soil layer
Survey the rate of change of head height and test period, to determine the in-situ test method of the infiltration coefficient of rock-soil layer.
If traditional drilling hole and injecting water experiment meets non cohesire soil in boring procedure, easily cause hole wall collapse, affect test result；
In boring procedure, unavoidably the hole bed rock soil of test section is impacted, so that testing the Geotechnical Parameter at the bottom of sector hole and test section
Other place, position ground is different, thus can have a huge impact result of the test.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of on-the-spot drilling hole and injecting water experiment that can improve test accuracy
Easy device.
This utility model solves the easy device of the on-the-spot drilling hole and injecting water experiment that its technical problem is used, including boring, described brill
Hole includes test section, is provided with working column at test section with the drill hole inner wall of upper bit, and the outer wall of described working column is close to bore
The inwall in hole, the hole section below test section backfills porose foot mat.
Further, the great soil group of described hole foot mat is not and the soil body classification of degree of compaction and test section place Rock And Soil and degree of compaction
Unanimously.
Further, also include that the outlet of water injection pipe is positioned at the middle part of test section for the water injection pipe of water filling in boring.
Further, described water injection pipe is flexible pipe or drilling rod.
Further, the working column top mouth of pipe is higher than drilling orifice.
Utility model the beneficial effects of the utility model are: owing to being provided with working column, can improve the stability of boring, anti-
Only borehole collapse, and working column also has the effect of sealing, is possible to prevent the water of injection hole from test section with the brill of upper bit
Hole hole wall permeates in Rock And Soil；Owing to being provided with hole foot mat, it is possible to prevent in boring procedure test sector hole tail band is come disturbance,
Thus affect test result；Working column is combined with hole foot mat, can specify test section, improves the accuracy of test result；
And this utility model simple in construction, it is possible to increase the installation effectiveness of experimental facilities.
Accompanying drawing explanation
Fig. 1 is the sectional view of an embodiment of the present utility model；
Parts, position and numbering in figure: boring 1, test section 11, hole foot mat 12, working column 2, water injection pipe 3,
Outlet 31, supply equipment 4, test equipment 5.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.At this it should be noted that saying for these embodiments
Bright being adapted to assist in understands this utility model, but is not intended that restriction of the present utility model.
As it is shown in figure 1, the easy device of the on-the-spot drilling hole and injecting water experiment involved by this utility model includes holing 1, described boring
Including test section 11, with boring 1 inwall of upper bit, working column 2 is installed at test section 11, outside described working column 2
Wall be close to hole 1 inwall, to protect hole wall, working column 2 has raising boring 1 stability and the effect of sealing,
Hole section at test section less than 11 backfills porose foot mat 12.The effect of hole foot mat 12 is to remove in boring procedure, to examination
Test the disturbance that sector hole tail band comes, it is preferred that the material of hole foot mat 12 is the ground of test section 11 place Rock And Soil layer, and hole
Soil body classification and the degree of compaction of foot mat 12 are consistent with the soil body classification of test section 11 place Rock And Soil and degree of compaction.Make test section
Rock And Soil at the bottom of 11 holes, i.e. hole foot mat 12 are identical with the soil property of 11 sections of body place Rock And Soils of test section, it is ensured that to inject
It is the truth of Rock And Soil that the water of boring 1 can permeate reflected in test section 11 all directions, it is ensured that the accuracy of test.
Specifically, in order to ensure injection testing section 11 water can in test section 11 uniformly penetrating, showing involved by this utility model
The easy device of field drilling hole and injecting water experiment also includes for the water injection pipe 3 of water filling, the outlet of water injection pipe 3 31 in boring 1
Middle part in test section 11.Middle part described herein refers to that the tube head 71 at the midpoint of the axis of test section 1, i.e. water injection pipe 7 is positioned at
The circle centre position of cross section in test section 1.Water injection pipe 7 is so set and can ensure that the water yield injected in 1 the most all
Uniformly, water filling is to pressure equilibrium produced by the hole wall of test section 1, it is ensured that the stability of test section 1 hole wall.Preferably,
Water injection pipe 7 is flexible pipe, and flexible pipe can reduce in installation process because water injection pipe 7 touches tube wall or the pipe of sleeve pipe 3 of instrumentation tubes 4
The impulsive force that wall or hole wall produce, certain water injection pipe 3 can also be drilling rod.
Specifically, the working column 2 top mouth of pipe is higher than boring 1 aperture.So arranging working column 2 can be at test section 11 place
When the permeability of Rock And Soil is poor, prevents the water water level injected too high and then diffuse out from the top mouth of pipe of working column 2 and then penetrate into
In the Rock And Soil of test section more than 11.
The easy device of on-the-spot drilling hole and injecting water experiment disclosed in the utility model can be realized by following methods:
A., with drill hole of drilling machine, in boring procedure, lower working column 2 in hole, working column 2 outer wall is close to 1 inwall of holing；
B. continue boring, form test section 11, it is ensured that the bottom of working column 2 is positioned at the top of test section 11；
C. continue boring, make boring 1 hole depth exceed bottom test section 11, after boring, test section 11 lower cavity is carried out
Backfill forms the soil body classification of hole foot mat 12, the soil body classification of hole foot mat 12 and degree of compaction and test section 11 place Rock And Soil
And degree of compaction is consistent；
D. to the water injection pipe 3 of boring 1 internally installed connection supply equipment 4, it is ensured that water injection pipe 3 outlet is positioned at test section 11
Middle part；
E., test equipment 5 is installed near water injection pipe 3 import.
Claims (5)
1. the easy device of on-the-spot drilling hole and injecting water experiment, including boring (1), described boring (1) includes test section (11), its
It is characterised by: with boring (1) inwall of upper bit, working column (2), described working column (2) are installed at test section (11)
Outer wall be close to hole the inwall of (1), backfill porose foot mat (12) in test section (11) hole section below.
The easy device of on-the-spot drilling hole and injecting water experiment the most according to claim 1, it is characterised in that: described hole foot mat (12)
Soil body classification and degree of compaction consistent with the soil body classification of test section (11) place Rock And Soil and degree of compaction.
The easy device of on-the-spot drilling hole and injecting water experiment the most according to claim 2, it is characterised in that: also include for brill
The water injection pipe (3) of hole (1) interior water filling, the outlet (31) of water injection pipe (3) is positioned at the middle part of test section (11).
The easy device of on-the-spot drilling hole and injecting water experiment the most according to claim 3, it is characterised in that: described water injection pipe (3)
For flexible pipe or drilling rod.
The easy device of on-the-spot drilling hole and injecting water experiment the most according to claim 1, it is characterised in that: working column (2) pushes up
Portion's mouth of pipe is higher than boring (1) aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620460241.9U CN205653774U (en) | 2016-05-19 | 2016-05-19 | On --spot drilling water injection test's simple and easy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620460241.9U CN205653774U (en) | 2016-05-19 | 2016-05-19 | On --spot drilling water injection test's simple and easy device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205653774U true CN205653774U (en) | 2016-10-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620460241.9U Active CN205653774U (en) | 2016-05-19 | 2016-05-19 | On --spot drilling water injection test's simple and easy device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107646223A (en) * | 2017-09-28 | 2018-02-02 | 新疆农业科学院土壤肥料与农业节水研究所(新疆维吾尔自治区新型肥料研究中心) | A kind of original soil modification method and its device suitable for heavy salinized ground |
| 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 |
-
2016
- 2016-05-19 CN CN201620460241.9U patent/CN205653774U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107646223A (en) * | 2017-09-28 | 2018-02-02 | 新疆农业科学院土壤肥料与农业节水研究所(新疆维吾尔自治区新型肥料研究中心) | A kind of original soil modification method and its device suitable for heavy salinized ground |
| 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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