KR101744277B1 - Grouting monitoring apparatus used electrode in bore-hole - Google Patents

Grouting monitoring apparatus used electrode in bore-hole Download PDF

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Publication number
KR101744277B1
KR101744277B1 KR1020150178779A KR20150178779A KR101744277B1 KR 101744277 B1 KR101744277 B1 KR 101744277B1 KR 1020150178779 A KR1020150178779 A KR 1020150178779A KR 20150178779 A KR20150178779 A KR 20150178779A KR 101744277 B1 KR101744277 B1 KR 101744277B1
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KR
South Korea
Prior art keywords
grouting
electrode
rock
injection hole
monitoring device
Prior art date
Application number
KR1020150178779A
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Korean (ko)
Inventor
오태민
박의섭
이항복
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한국지질자원연구원
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Priority to KR1020150178779A priority Critical patent/KR101744277B1/en
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    • 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
    • E02D1/08—Investigation of foundation soil in situ after finishing the foundation structure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/123—Consolidating by placing solidifying or pore-filling substances in the soil and compacting the soil
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/187—Machine fault alarms

Abstract

A rock grouting monitoring apparatus using an electrode installed in a rock injection hole is disclosed. The disclosed rock mass grouting monitoring apparatus includes a plurality of injection holes radially installed in an underground structure to form a grouting portion by injecting a grout into a rock bed or ground around an underground structure; A plurality of electrodes provided in the injection hole; A plurality of temperature sensors provided in the injection hole for measuring the temperature of the rock or the ground; A measuring unit for applying a current or voltage to the electrodes and measuring a resistance value between the electrodes provided in the adjacent injection holes; And a grouting analysis unit for analyzing the measured values of the temperature sensor and the measuring unit to calculate an electrical resistivity value.

Description

TECHNICAL FIELD [0001] The present invention relates to a grouting monitoring apparatus using an electrode installed in a rock-

The present invention relates to a rock grouting monitoring apparatus using an electrode installed in a rock penetration hole, and more particularly, to a rock grouting monitoring apparatus using an electrode installed in a rock penetration hole, in which a plurality of grooves A plurality of electrodes are provided in the injection hole and the electrical resistivity value is calculated by measuring the resistance value between the electrodes provided in mutually adjacent injection holes to determine the extent of the grout injected and the damage and the damaged position of the completed grouting portion, It is a grouting monitoring device.

Recently, the grouting technique in the rock joint has been applied for the purpose of increasing the order and stability of the important underground structures due to the construction of large scale underground structures in the rock mass.

However, there is no long - term monitoring method for grouting after grouting or after grouting, and it is necessary to evaluate the grouting degree and soundness monitoring device in rock joint by using non - destructive method.

The monitoring device using the non-destructive method relating to the existing grouting utilizes the electrical resistivity physical exploration performed on the ground surface (mainly sandy soil), and the conventional rock resistive grouting monitoring device using the resistivity physical exploration has the following problems.

First, in the evaluation of underground structures that are deep (e.g., 1 km depth), the length of the sidewall (about 2 km of the electrode installation interval) corresponding to about twice the evaluation depth is required.

If the length of the sidewall increases substantially, it will require a lot of cost and effort to install the electrode due to obstacles (trees, rocks, steep terrain, etc.) existing in the sidewall.

In addition, since the electrical resistivity value measured in the geophysical survey is a qualitative (relative) value, reverse analysis is essential to confirm the grouting distribution.

It is possible to confirm the broadband grouting distribution evaluation around the underground structure through inverse analysis, but it is difficult to grasp the precise distribution about the specific location.

In addition, the inverse analysis results of the grouting distribution have limitations that can be changed depending on the assumption conditions of the ground (temperature, stratification structure, electric conductivity of the pore water, etc.).

In addition, since the electric conductivity is very low in the fresh rock without joint, it is not easy to evaluate the grouting around the underground structure in the deep part of the rock through the measurement of electrical resistivity on the surface.

Japanese Unexamined Patent Application Publication No. 2005-076315 (Mar. 24, 2005).

In order to solve the above problems, the present invention is characterized in that a plurality of electrodes are installed in a plurality of injection holes provided radially in an underground structure to form a grouting portion by injecting a grout into a rock bed or a ground around an underground structure, And it is an object of the present invention to provide a rock grouting monitoring apparatus capable of measuring an electrical resistivity value by measuring the resistance value between electrodes installed in an injection hole, thereby determining the extent of grout injected and the damaged and damaged position of the completed grouting portion.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method and apparatus for controlling the flow of a gas.

In order to accomplish the above object, the present invention provides a method for forming a grouting portion by injecting a grout into a rock bed or ground around an underground structure to form a grouting portion; A plurality of electrodes provided in the injection hole; A plurality of temperature sensors provided in the injection hole for measuring the temperature of the rock or the ground; A measuring unit for applying a current or voltage to the electrodes and measuring a resistance value between the electrodes provided in the adjacent injection holes; And a grouting analysis unit for analyzing the measured values of the temperature sensor and the measuring unit to calculate an electrical resistivity value.

In the present invention, it is preferable to measure the resistance value between one electrode provided in one injection hole and one electrode provided in the other injection hole, based on the injection holes adjacent to each other.

In the present invention, it is preferable that the grouting analysis unit analyzes the calculated electrical resistivity value to derive the damaged grout region or the damaged or damaged position of the completed grouting portion.

Preferably, the present invention further includes an output unit for displaying a measurement value of the temperature sensor and the measurement unit and an analysis result of the grouting analysis unit to the operator's monitor or terminal.

In the present invention, when the grouting portion is damaged, the output portion preferably displays an alarm signal to the operator's monitor or the terminal, or operates an alarm system installed in the underground structure.

In the present invention, it is preferable that the electrodes are sequentially spaced apart along the longitudinal direction of the injection hole.

In the present invention, the electrodes are plate-shaped, and are preferably bent or bent so as to correspond to the shape of the inner side of the injection hole, and are disposed on the inner side of the injection hole.

In the present invention, it is preferable that a plurality of projections are formed on the electrode.

In the present invention, it is preferable that the electrode comprises a plate-shaped head portion and a projection connected to the head portion and stuck to the side surface of the injection hole.

In the present invention, the electrode is rod-shaped, and one end is preferably embedded in the injection hole and the rock.

In the present invention, the electrode is preferably made of any one of copper, stainless steel, silver and aluminum, or a mixture thereof.

Preferably, the present invention further comprises a wire holding part provided on a side surface of the injection hole for receiving a wire connected between the electrode and the measurement part.

The apparatus for monitoring rock grouting according to the present invention can measure the electrical resistivity value by measuring the resistance value between the electrodes provided in mutually adjacent injection holes to obtain the effect that the inverse analysis for the grouting evaluation is not necessary and the grouting can be immediately evaluated in the field .

Further, before the grout injection, the entire joint direction and size information of the rock to be evaluated can be obtained.

Also, during the grouting, the grouting degree and the degree of curing can be evaluated through the electrical resistivity value varying according to the grout area injected into the rock joint.

Further, since the electrode is permanently inserted into the injection hole after the completion of the grouting, there is an effect that the real time rocking grouting monitoring can be performed in the long term.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a block diagram of an apparatus for monitoring rock bed grouting according to an embodiment of the present invention.
FIG. 2 is an installation state diagram of the injection hole 110 and the electrode 120 shown in FIG.
FIG. 3A is a perspective view of the electrode 120 shown in FIG.
FIG. 3B is a rear perspective view of the electrode 120 shown in FIG. 3A.
4A is a perspective view showing another embodiment of the electrode 120 shown in FIG.
4B is a rear perspective view of the electrode 120 shown in FIG. 4A.
5A is a perspective view showing another embodiment of the electrode 120 shown in FIG.
5B is a perspective view showing another embodiment of the electrode 120 shown in FIG.
FIG. 6 is a monitoring flowchart of the rock grouting monitoring apparatus 100 shown in FIG.
FIG. 7 is a view showing the range of the grout being injected through the injection hole 110 shown in FIG.
FIG. 8 is a view showing a range of the grout injected through the injection hole 110 shown in FIG. 1; FIG.
Fig. 9 is a view showing a state in which the generation of cracks (c) in the finished grouting portion G is started.
FIG. 10 is a view showing a state in which cracks (c) generated in the grouting portion G shown in FIG. 9 are advanced.

Hereinafter, a rock grouting monitoring apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG.

1 is a block diagram of an apparatus for monitoring rock bed grouting according to an embodiment of the present invention.

FIG. 2 is an installation state diagram of the injection hole 110 and the electrode 120 shown in FIG.

FIG. 3A is a perspective view of the electrode 120 shown in FIG. 1, and FIG. 3B is a rear perspective view of the electrode 120 shown in FIG. 3A.

FIG. 4A is a perspective view showing another embodiment of the electrode 120 shown in FIG. 1, and FIG. 4B is a rear perspective view of the electrode 120 shown in FIG. 4A.

5A is a perspective view showing another embodiment of the electrode 120 shown in FIG.

5B is a perspective view showing another embodiment of the electrode 120 shown in FIG.

As shown in FIGS. 1 and 5, the rock grouting monitoring apparatus 100 is configured to inject a grout into a rock around an underground structure S to form a grouting portion G shown in FIG. 8, A plurality of injection holes 110 provided radially in the injection hole S and a plurality of electrodes 120 provided in the injection hole 110.

And a plurality of temperature sensors 130 installed in the injection hole 110, more specifically, on the electrode 120, for measuring the temperature of the rock mass.

And a measuring unit 140 for applying a current or voltage to the electrode 120 and measuring the resistance value of the rocking or grouting unit G between the electrodes 120 provided in the adjacent injection holes 110. [

And a grouting analysis unit 150 for analyzing the measured values of the temperature sensor 130 and the measurement unit 140 to calculate an electrical resistivity value.

And an output unit 160 for displaying the measurement values of the temperature sensor 130 and the measurement unit 140 and the analysis result of the grouting analysis unit 150 to the operator's monitor or terminal.

3, the electrode 120 may have a plate shape, and may be bent or bent so as to correspond to the shape of the inner side surface of the injection hole 110, and the conductive adhesive A coated on the electrode 120 may be bent, And is fixed to the inner surface of the injection hole 110 by a bolt.

The temperature sensor 130 is mounted on the back surface of the electrode 120 and a wire hook 121 for fixing the wire W connected to the electrode 120 is provided on the back surface of the electrode 120.

4, a plurality of nail-shaped protrusions 122 may be formed on the electrode 120, and the protrusions 122 may be formed on the inner surface of the injection hole 110 to fix the electrode 120 have.

The temperature sensor 130 is mounted on the back surface of the electrode 120 and a wire hook 121 for fixing the wire W connected to the electrode 120 is provided on the back surface of the electrode 120.

5A, the electrode 120 may be formed in a tack shape, and a wire hook 121 for fixing the wire W to the plate-shaped head portion 123 is provided. The head portion 123, A temperature sensor 130 may be mounted on one side.

The protrusions 122 provided on the head part 123 are inserted into the injection holes 110 so that the electrodes 120 can be fixed.

Referring to FIG. 5B, the electrode 120 may be formed into a nail-shaped rod shape so that the electrode 120 is embedded in the injection hole 110 and the rock.

The temperature sensor 130 is installed at one side of the electrode 120 and a wire hook 121 for fixing the wire W connected to the electrode 120 is provided at the end of the electrode 120.

The electrode 120 may be made of a conductive steel material, and it is more preferable to use any one of copper, stainless steel, silver, and aluminum or a mixture thereof having high conductivity and durability against corrosion.

At least two electrodes 120 are preferably installed in the injection hole 110 and are sequentially spaced along the longitudinal direction of the injection hole 110.

As described above, it is preferable that the electrode 120 is provided with a wire hook 121 and the wire hook 121 is also provided on the inner side of the injection hole 110.

The wire W connected to the electrode 120 and the temperature sensor 130 and extending into the underground structure S along the injection hole 110 so as to be connected to the measurement unit 140 is inserted into the inner surface of the injection hole 110 And is mounted on a wire hanger 121 provided in the vehicle.

Therefore, it is possible to prevent an obstruction of the grout injection by the electric wire W.

The measurement unit 140 measures the resistance value between one electrode 120 installed on one injection hole 110 and one electrode 120 installed on the other injection hole 110 based on the mutually adjacent injection holes 110 .

More specifically, referring to FIG. 7, the resistance of the grouting portion G or the rock between the electrode A1 provided in the one injection hole 110 and the electrode B1 provided in the other injection hole 110 or between the electrode A1 and the electrode B2 Measure the value.

The grouting analysis unit 150 analyzes the calculated electrical resistivity value to derive the damaged grout region or the damaged and damaged position of the completed grouting portion (G).

The grouting analysis unit 150 may calculate the electrical resistivity value G1 calculated by the grouting unit G in which cracking occurs when the grouting unit G, which is a mixture of rock and grout, is damaged by an unspecified external force such as earthquake, weathering, An alarm system installed in the underground structure S is operated through the output unit 160 or a danger signal is displayed on the operator's monitor or the terminal when the electric resistivity value is reduced by 20% or more.

Hereinafter, the monitoring procedure of the rock grouting monitoring apparatus 100 will be described with reference to FIG.

FIG. 6 is a monitoring flowchart of the rock grouting monitoring apparatus 100 shown in FIG.

6, the monitoring sequence of the rock grouting monitoring apparatus 100 is as follows. First, the measuring unit 140 applies voltage or current to the electrode 120, and the temperature sensor 130 measures the temperature of the rock (S110)

The measurement unit 140 measures the resistance value of the rock or the grouting unit G between the electrodes 120 provided in the injection hole 110 adjacent to each other.

The measurement unit 140 measures the resistance value between one electrode 120 installed on one injection hole 110 and one electrode 120 installed on the other injection hole 110 based on the mutually adjacent injection holes 110 .

7, the resistance value of the grouting portion G or the rock between the electrode A1 provided on the one injection hole 110 and the electrode B1 provided on the other injection hole 110 or the electrode A1 and the electrode B2 is measured.

After the measurement steps S110 and S120, the grouting analysis unit 150 analyzes the measured values of the temperature sensor 130 and the measurement unit 140 to calculate an electrical resistivity value (S130)

The grouting analysis unit 150 analyzes the calculated electrical resistivity value to derive the damaged grout region or the damaged and damaged position of the completed grouting portion (G).

After the analysis step S130, the output unit 160 displays the measurement values of the temperature sensor 130 and the measurement unit 140 and the analysis result of the grouting analysis unit 150 to the operator's monitor or terminal. )

The grouting analysis unit 150 may calculate the electrical resistivity value G1 calculated by the grouting unit G in which cracking occurs when the grouting unit G, which is a mixture of rock and grout, is damaged by an unspecified external force such as earthquake, weathering, An alarm system installed in the underground structure S is operated through the output unit 160 or a danger signal is displayed on the operator's monitor or the terminal when the electric resistivity value is reduced by 20% or more.

Referring to FIGS. 7 and 8, the rock grouting monitoring apparatus 100 can evaluate the grout range and the degree of curing when the grout is injected around the underground structure S.

FIG. 7 is a view showing the range of the grout being injected through the injection hole 110 shown in FIG.

FIG. 8 is a view showing a range of the grout injected through the injection hole 110 shown in FIG. 1; FIG.

7, the electrodes A1, A2, and A3 are sequentially spaced apart from one another in the injection holes 110 adjacent to each other and the electrodes 120 , B2, and B3 are sequentially spaced apart from each other.

The measurement unit 140 measures the resistance value of the rock or the grouting portion G between the pair of electrodes 120 such as the electrodes A1-B1, A1-B2, A1-B3, or A2-B1.

That is, when the measuring unit 140 measures the resistance value using the electrodes A1-B1 and the grouting analysis unit 150 calculates the electrical resistivity value, it can be confirmed that the grouting is completed in the corresponding interval.

On the other hand, if the electrical resistivity is measured using the electrode A3-B3, it can be judged that the grout injection has not been completed yet.

Referring to FIG. 8, it can be seen that the grouting is completed through the electrical resistivity values calculated in the section of the electrodes A1-B1, A2-B2 and A3-B3, and the grouting portion G is completed.

9 and 10, when the grouting portion G is damaged by an unspecified external force such as earthquake, weathering, deterioration or the like, the rock grouting monitoring apparatus 100 determines whether or not the grouting portion G is damaged, Can be derived.

Fig. 9 is a view showing a state in which crack cracks C are generated in the completed grouting portion G. Fig.

FIG. 10 is a view showing a state in which the crack crack C generated in the grouting portion G shown in FIG. 9 is advanced.

If the grouting portion G in the rock is damaged, the stability of the underground structure S is lowered, and the groundwater may enter the underground structure S.

9, when the groundwater penetrates due to the crack C generated in the grouting portion G, a change in the electrical resistivity value occurs in the section of the electrode A3-B3 (or in the section of the electrodes A3-B2 and A2-B3) do.

Referring to FIG. 10, it can be determined that groundwater infiltration occurs to the vicinity of the underground structure S when a change in electrical resistivity value occurs up to the interval of the electrodes A1-B1.

As described above, when the grouting portion G, which is a mixture of the rock and the grout, is damaged by an unspecified external force such as earthquake, weathering, or deterioration, the grouting portion 150 may be a grouting portion G is reduced by 20% or more of the electric resistivity value calculated before the crack C, the alarm system installed in the underground structure S is operated through the output unit 160 or the operator's monitor Or a hazard signal at the terminal.

As described above, in the rock grouting monitoring apparatus using the electrodes provided in the rock filling hole of the embodiment of the present invention described above, the resistance value between the electrodes provided in the adjacent injection holes is measured to calculate the electrical resistivity value. And it is possible to obtain the effect that the grouting can be immediately evaluated in the field.

Further, before the grout injection, the entire joint direction and size information of the rock to be evaluated can be obtained.

Also, during the grouting, the grouting degree and the degree of curing can be evaluated through the electrical resistivity value varying according to the grout area injected into the rock joint.

Further, since the electrode is permanently inserted into the injection hole after the completion of the grouting, there is an effect that the real time rocking grouting monitoring can be performed in the long term.

It is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention and are not intended to limit the scope of the technical idea of the present invention.

It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. .

S: Underground structures
G: Grouting portion
C: Crack
100: Rock mass grouting monitoring device
110: injection ball
120: Electrode
130: Temperature sensor
140:
150: Grouting analysis section
160: Output section

Claims (12)

A plurality of injection holes radially provided in the underground structure to form a grouting portion by injecting a grout into a rock bed or a ground around an underground structure;
A plurality of electrodes provided in the injection hole;
A plurality of temperature sensors installed in the injection holes for measuring the temperature of the rock or the ground;
A measurement unit for applying a current or a voltage to the electrode and measuring a resistance value between electrodes provided in the injection hole adjacent to each other;
A grouting analysis unit for analyzing the measured values of the temperature sensor and the measurement unit to calculate an electrical resistivity value;
Lt; / RTI >
The electrode
And is bent or bent so as to correspond to the shape of the inner side surface of the injection hole,
Rock mass grouting monitoring device.
The method according to claim 1,
The measuring unit
Wherein a resistance value between one electrode provided in one injection hole and one electrode provided in the other injection hole is measured based on the mutually adjacent injection holes.
Rock mass grouting monitoring device.
The method according to claim 1,
The grouting analysis unit
Wherein the calculated electrical resistivity value is analyzed to derive the damaged grout area or the damaged and damaged position of the finished grouting part.
Rock mass grouting monitoring device.
The method of claim 3,
An output unit for displaying measured values of the temperature sensor and the measurement unit and analysis results of the grouting analysis unit on a monitor or terminal of an operator;
≪ / RTI >
Rock mass grouting monitoring device.
5. The method of claim 4,
The output
Characterized in that when the grouting portion is damaged, an alarm system installed in the underground structure is activated or a danger signal is displayed to the operator's monitor or terminal.
Rock mass grouting monitoring device.
The method according to claim 1,
The electrode
Wherein the injection holes are sequentially spaced along the longitudinal direction of the injection holes.
Rock mass grouting monitoring device.
delete The method according to claim 1,
And a plurality of projections are formed on the electrode.
Rock mass grouting monitoring device.
The method according to claim 1,
The electrode
And a projection which is connected to the head portion and is caught on the inner side surface of the injection hole.
Rock mass grouting monitoring device.
delete The method according to claim 1,
The electrode
Copper, stainless steel, silver, and aluminum, or a mixture thereof.
Rock mass grouting monitoring device.
The method according to claim 1,
Further comprising a wire holder provided on an inner surface of the electrode or the injection hole for receiving an electric wire connected between the electrode and the measurement unit,
Rock mass grouting monitoring device.
KR1020150178779A 2015-12-15 2015-12-15 Grouting monitoring apparatus used electrode in bore-hole KR101744277B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108646308A (en) * 2018-06-15 2018-10-12 山东大学 A kind of unfavorable geologic body grouting method of real-time based on four-dimensional resistivity inversion
KR102144383B1 (en) 2020-02-10 2020-08-14 지산특수토건(주) STEEL PIPE MULTI-STAGE GROUTING QUALITY MONITORING SYSTEM BASED ON INTERNET OF THINGS (IoT), AND METHOD FOR THE SAME
KR20220117594A (en) 2021-02-17 2022-08-24 한국과학기술연구원 Apparatus and method for evaluating applicability of arsenic reduction technique to rock aquifer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005337746A (en) 2004-05-24 2005-12-08 National Institute For Rural Engineering Electric exploration method
KR101638619B1 (en) * 2015-12-03 2016-07-11 한국지질자원연구원 Grouting monitoring method used resistivity

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005337746A (en) 2004-05-24 2005-12-08 National Institute For Rural Engineering Electric exploration method
KR101638619B1 (en) * 2015-12-03 2016-07-11 한국지질자원연구원 Grouting monitoring method used resistivity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108646308A (en) * 2018-06-15 2018-10-12 山东大学 A kind of unfavorable geologic body grouting method of real-time based on four-dimensional resistivity inversion
KR102144383B1 (en) 2020-02-10 2020-08-14 지산특수토건(주) STEEL PIPE MULTI-STAGE GROUTING QUALITY MONITORING SYSTEM BASED ON INTERNET OF THINGS (IoT), AND METHOD FOR THE SAME
KR20220117594A (en) 2021-02-17 2022-08-24 한국과학기술연구원 Apparatus and method for evaluating applicability of arsenic reduction technique to rock aquifer

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