KR100643716B1 - The judgmentt methods of the grouting-result using the heating device and the temperature-monitoring equipments - Google Patents

Abstract

A judging method of a grouting-result using a heating device and temperature-monitoring equipment is provided to reduce cost by reducing time and the number of persons required for measuring the grouting-result. A judging method of a grouting-result using a heating device and temperature-monitoring equipment includes the steps of: punching a borehole(15) corresponding to the depth of grouting construction; heating a grouting medium(10) located around a heating borehole; changing heated water with normal temperature water; obtaining temperature data measured by the temperature-monitoring equipment for a predetermined time; and analyzing and judging the grouting-result of a predetermined region around each borehole by using temperature change data.

Description

The judgmentt methods of the grouting-result using the heating device and the temperature-monitoring equipments}

1 is a block diagram of a device used in the conventional ground grouting performance determination method,

2 is a schematic diagram for determining the conventional ground grouting performance,

Figure 3 (a), (b) is a block diagram of a measuring device used in the ground grouting performance determination method according to the present invention,

Figure 4 (a), (b), (c), (d) is a schematic diagram of the ground grouting performance determination method according to an embodiment of the present invention,

5 is a graph of temperature data for each ground core tool shown to determine ground grouting performance using temperature data obtained according to an embodiment of the present invention;

6 is a schematic diagram of a ground grouting performance determination method according to another embodiment of the present invention.

※ Brief description of symbols for the main parts of the drawings

5: soft ground 10: grouting medium

15, 15 ′: borehole 20: temperature monitoring device

21: multi-point temperature sensing cable 22: temperature sensing sensor

24: Cable 25: Temperature monitoring device

26: function control unit 27: display unit

30: heating means 31: heating portion

32: power supply unit 40: room temperature water

The present invention relates to a method for determining ground grouting performance using a heating means and a temperature monitoring device. Particularly, a grouting hole is provided at any time after a grouting operation, and a heating means is inserted into the borehole to heat the inside of the borehole for a predetermined time, and then filled with room temperature water. The present invention relates to a method of determining ground grouting performance by using a heating means and a temperature monitoring device to determine the ground grouting performance by measuring the heat transmitted according to a medium around a borehole by inserting a temperature sensor cable in a state. .

The ground grouting method is a method of injecting cement or chemical coagulant into the ground of various civil engineering facilities under construction for the purpose of stabilizing, reinforcing, preventing water and leakage of soft ground. It is also applied to the order and waterproof of tunnels, earth structures, etc., to strengthen the bearing capacity of foundation ground and to stabilize the bottom of excavated ground.

The problem in the construction of the ground grouting method is that it is easy to check the performance of the ground grouting because it is to inject a medium (eg cement) to solidify the ground into the perforated borehole by drilling the borehole in the underground soft ground. I can't.

The design of the grouting assumes that the grouting medium is filled over a range (eg 1 m in diameter) around the borehole into which the medium is injected. However, the soft ground often has a large difference in physical properties (e.g. permeability, voids, etc.) depending on the depth, so that the grouting bulbs (e.g. 1m in diameter) expected at design time do not form uniformly or in some depth sections. Many times the grouting medium is not filled at all.

If such a condition occurs, the original construction purpose of grouting, such as strengthening the bearing capacity of the foundation ground, order and waterproofing, can not be achieved, which causes the sub-work.

Therefore, judging the performance of the construction grouting is very important in that it can prevent problems that may occur after construction, but conventionally there was not much efficient method for determining the performance of the grouting.

That is, a method of determining leaks by checking observation for a certain period of time after construction or sampling the surrounding area of grouting was made. However, this conventional method requires additional manpower and equipment. Of course, there was a problem of additional economic cost and long time, which was very inefficient as a way of determining the performance of grouting.

In order to solve the inefficiency of the conventional method of determining the grouting performance, since the solidified material (eg cement) injected into the borehole emits considerable heat during curing, the temperature change during the curing period of the solidified material is prevented. Observations have been developed to help determine the performance of grouting.

However, in order to monitor the temperature rise process occurring in the curing process of the conventionally developed grouting medium, it was necessary to perform temperature monitoring at the same time as grouting construction to judge the performance of grouting.

Therefore, in order to perform temperature monitoring at the same time as grouting construction, the temperature monitoring apparatus 2 as shown in FIG. 1 is used. In the conventional temperature monitoring apparatus 2, a single temperature sensor cable 3 is bundled with several depths. The temperature sensor cable (3a) is configured to measure the temperature of the star, but the use of thicker temperature sensor cable bundles was more restrictive, and another problem occurred in controlling the temperature data measured by the temperature monitoring device (4). In addition, there have been a number of problems such as the consumption of manpower and time due to the repeated measurement of moving the temperature sensor cable bundle 3a.

In addition, a method of determining the performance of grouting using such a conventional temperature monitoring device 2 is shown in the schematic diagram in FIG. 2, which is another separate near the borehole 15 into which the grouting medium 10 is injected. The grouting medium (10: cement) was injected into the grouting borehole (15) while drilling the borehole (15 ') with the temperature sensor cable bundle (3a) and the temperature monitoring device (2) installed.

However, since the grouting medium 10 injected into the grouting borehole 15 is injected at high pressure to penetrate into the soft ground 5 around the borehole 15, the temperature sensing perforated near the grouting borehole 15 is sensed. The grouting medium 10 penetrates into the inside of the borehole 15 'for the temperature monitoring by sensing the heat generated in the curing process of the grouting medium penetrated into the borehole 15' for temperature measurement. Temperature data was acquired by the device (2) to analyze and judge the performance of the grouting area.

That is, when the grouting medium 10 penetrates into the borehole 15 ′ in which the temperature sensor is installed, the temperature is rapidly increased as the medium heats up, and in the part where the grouting medium is not penetrated, the temperature distribution is relatively low. Based on the result of temperature change, it was used as a data for judging the performance of grouting.

However, in the conventional method of determining the grouting performance, grouting has to be performed by injecting grouting medium into the ground and drilling adjacent temperature measuring holes 15 'and installing a temperature monitoring device 2 to perform temperature monitoring. Since the injection work is inconvenient and the grouting must be continuously measured for more than 3 days from the time the grouting medium is cured, a separate observer must be waiting at the site, so labor costs are lost, especially the temperature monitoring at the same time as the grouting construction. Since this has to be performed, there are many time constraints that temperature monitoring must be performed at the same time, and if this time is missed, there is a problem that it is impossible to determine the performance of grouting.

In addition, since the grouting medium injected into the borehole is injected at high pressure and filled in the soft ground 5 around the borehole 15, the grouting medium 10 to the inside of the temperature sensing borehole 15 ′ perforated near the grouting borehole. When this flows in, the pressure inside the grouting borehole 15 is dropped, there is also a problem that the efficiency of the grouting falls.

The present invention has been made to solve the problems caused in the conventional determination of the grouting performance described above, the present invention provides a method that can determine the performance at any time regardless of the time the ground grouting is implemented, the difficulty of time constraints The purpose of the present invention is to provide a ground grouting performance determination method using heating means and a temperature monitoring device to solve the problem and improve the grouting work efficiency by improving the working conditions during the grouting construction.

In particular, the present invention is to provide a method of determining the ground grouting performance to be able to determine the performance of the grouting construction over a short time to further improve work efficiency by reducing the waste of time and manpower required to determine the grouting performance There is another purpose.

In order to achieve the above object, the ground grouting performance determination method using the heating means and the temperature monitoring device according to the present invention comprises the steps of drilling a borehole corresponding to the depth of the grouting medium in the grouted construction area; Inserting a heating means of a predetermined length into the perforated borehole to heat the grouting medium around the inside of the borehole by heating the borehole to a predetermined temperature; Removing the heating means from the borehole after heating for a predetermined time, and filling the inside of the borehole with room temperature water and replacing the warmed water with room temperature water again; Temperature monitoring device that detects heat emitted from medium by depth by inserting multi-point temperature sensing cable that is connected to temperature monitoring device installed outside in the borehole replaced with room temperature and equipped with a plurality of temperature sensing sensors at regular intervals in a single cable Obtaining temperature data by measuring for a predetermined time through; Grouting for a certain area around each borehole by using temperature change data displayed continuously for a predetermined time by the temperature monitoring device or a computer receiving data from the temperature monitoring device that acquires and stores temperature change data for each depth in the borehole. Analyzing and judging performance;

In addition, the ground grouting performance determination method using the heating means and the temperature monitoring device according to another embodiment of the present invention for achieving the above object is to provide two boreholes with a predetermined depth at a position where a constant distance is maintained in the grouting construction area. Puncturing; One of the two drilled boreholes inserts a heating means inside one of the boreholes, and inserts a multi-point temperature sensing cable connected to a temperature monitoring device installed externally and provided with a plurality of temperature sensing sensors at regular intervals in a single cable. Making; The heating means heats the inside of the borehole and the surrounding borehole for a predetermined time, and detects the heat transferred through the medium from the borehole with the heating means with a multi-point temperature sensing cable inserted into the other borehole. Acquiring temperature data with a monitoring device; Analyzing grouting performance for a certain area around the borehole using the temperature change data of each depth displayed continuously for a certain time by the temperature monitoring device or the computer receiving the data from the temperature monitoring device storing the obtained temperature data. Judging;

Hereinafter, a method for determining ground grouting performance using a heating means and a temperature monitoring apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Measurement apparatus used to determine the ground grouting performance using the heating means and the temperature monitoring device according to the present invention is shown in Figures 3 (a), (b).

That is, for determining the grouting performance according to the present invention, a certain heating means 30 and the temperature monitoring device 20 will be essential.

As shown in Figure 3 (a), the heating means 30 is provided with a heating portion 31 having a predetermined length that can be inserted into the borehole drilling to a certain depth, and the heating portion 31 is provided at the end It is made of a simple configuration provided with a power supply unit 32 for supplying power to the heat generating unit 31 to generate heat.

The heating part 31 is configured to radiate heat of a uniform state on the entire surface in a state of being inserted at a predetermined depth inside the borehole, so that the medium inside the borehole and the borehole (the concrete that is the grouting medium or not grouted) General soil, etc.), and in the embodiment of the present invention, high heat is generated and radiated using ordinary electricity supplied from outside by making a bar-shaped hot wire among various heating means.

On the other hand, the temperature monitoring device 20 is inserted into the borehole, the temperature sensor 22 that can detect the temperature generated at each depth position of the borehole is configured to be continuously arranged in a single cable 24 at regular intervals It consists of a multi-point temperature sensing cable 21 and the temperature monitoring device (25).

As shown in FIG. 3 (b), the multi-point temperature sensing cable 21 is configured by a plurality of temperature sensing sensors arranged at regular intervals in a single cable 24, and a plurality of conventional temperature measuring cables are detected. Compared to the sensor and cable, the volume, weight and performance are greatly improved.

That is, the multi-point temperature sensing cable 21 is connected to a temperature monitoring device 25 separately equipped with an addressable thermal sensor mounted at regular intervals in accordance with the purpose of use within the single cable 24. Simultaneously with the turn-on of the temperature monitoring device 25, the information on the magnetic position between the temperature monitoring device 25 and the respective temperature sensing sensors 22 is checked.

The magnetic sensor (Addressable thermal sensor) is designed to be driven only by the pulse signal transmitted for communication in the monitoring device (parasite power circuit) is configured so that the power consumption is extremely small, ROM (ROM), 1 It consists of a wire port, memory control logic, scratchpad, temperature sensor, and so on, even though several sensors are connected and installed in a single cable 24. 25 is configured to be recognized.

On the other hand, the temperature monitoring device 25 is manufactured in a constant size having a convenient size and durability in the field, position recognition, data transmission and storage of each temperature sensing sensor provided in the connected multi-point temperature sensing cable 21 The function control unit 26 can input and manipulate various parameters (date, measurement time interval, time adjustment, etc.) necessary for measurement, and the measured data or measured data to directly check the temperature data measured in the field. And a display unit 27 for displaying the processed data, an input / output port capable of transmitting / receiving data with a separate computer, and RS232 (not shown).

On the other hand, the following describes a specific method for determining the performance of the grouting ground using the above-described heating means 30 and the temperature monitoring device 20.

The method for determining the ground grouting performance according to the present invention is based on the fact that the thermal conductivity and specific heat capacity between the grouting medium and the soft ground (eg soil, sand, etc.) that are not grouted are different from each other. It is a way to judge the performance of the grouting area.

In other words, when the borehole is drilled in the grouted area and heat is applied to the medium in the borehole, the degree of temperature rise is changed according to the thermal conductivity and specific heat of each medium, and thus the degree of temperature drop is changed after the heating is completed. If the grouting medium is uniformly distributed over the whole depth section, the temperature change by depth will be generally constant. If the distribution of the grouting media for each depth is different, that is, the grouting for each depth section is performed properly. If not, the temperature change in the well- grouted section and the non-grooving section will be different. Therefore, the grouting performance is judged based on the temperature data obtained by using the heat transfer characteristics of different ground media.

Hereinafter, the specific embodiments will be described in more detail.

My Example 1

4 (a) to 4 (d) show a method of determining the performance of the grouting medium according to an embodiment of the present invention by a schematic diagram for each process.

That is, the method of determining the performance of the grouting medium according to an embodiment of the present invention, as shown in the figure, drilling a borehole 15 corresponding to the construction depth of the grouting medium 10 in the grouted construction area (Fig. 4a) (S1); Grouting around the borehole 15 by inserting a constant heating means 30 having a length corresponding to the entire length of the borehole 15 in the center of the drilled borehole 15 and then heating the inside of the borehole 15 for a predetermined time. Heating medium 10 (FIG. 4B) (S2); After heating the inside of the borehole 15 for a predetermined time, the heating means 30 is removed from the borehole 15, and the warmed water 40 is filled in the borehole 15 to replace the warmed water with room temperature (FIG. 4C). The process goes to step S3.

In addition, after replacing the inside of the borehole 15 with room temperature water, it is connected to the temperature monitoring device 25 installed outside to the center position of the borehole 15, and the plurality of temperature sensors 22 in a single cable 24 have a predetermined interval. Insert the multi-point temperature sensing cable 21 provided in the entire depth of the borehole 15 to detect heat transmitted by the water filled in the borehole by diverging from the medium for each depth and transmitted to the temperature monitoring device 25. Through the temperature monitoring step (S4) to obtain the measured temperature data for a predetermined period (Fig. 4d), the temperature data is analyzed directly in the field using the temperature change data of each depth for a predetermined time for each borehole 15 or Step (S5) to determine the grouting performance of the medium around each borehole by analyzing and determining the temperature change state of each depth by the computer received the data from the temperature monitoring device 25 (S5) It is formed.

The heating means 30 inserted into the borehole 15 to heat the inside of the borehole 15 is properly adjusted so that the heating means is positioned at the center of the borehole for uniform heating and heat radiation inside the borehole. Preferably, the fixing means (not shown) that can fix the upper end of the heating means 30 to the inlet side of the borehole 15 to install the heating means 30 to the center of the borehole 15 It is preferable to be.

Filling the inside of the borehole 15 heated by the heating means 30 to replace the normal temperature water 40 is the heat from the peripheral medium of the heated borehole 15 to the temperature sensor 22 By using water as a heat transfer medium for detection, the water filled inside the initial borehole 15 is not transferred to the medium around the borehole 15 but to the heat present inside the borehole or the heat on the surface of the medium around the borehole. Because it is quickly warmed up, it is necessary to insert the temperature sensing cable after replacing the heated water with room temperature water so that the heat from the medium can be detected.

In addition, in the temperature monitoring step (S4) of acquiring the temperature data inside the borehole 15, initial information on the mutual communication state, the temperature sensor position, and the temperature value between the temperature monitoring device 25 and the multi-point temperature sensing cable 21. Checking step (Sa); and the measurement parameter input step (Sb) for setting and inputting various measurement parameters required for temperature measurement using the temperature monitoring device 25; In order to easily analyze the grouting performance of the medium around the borehole, the temperature monitoring device 25 and the computer have separately manufactured software.

5 is a graph of temperature change according to depths in which temperature monitoring results obtained by the performance determination method according to the above-described embodiment are checked at predetermined intervals.

In the graph orthogonal to the depth depth, the horizontal axis shows the temperature (℃) and the vertical axis shows the depth of the borehole, and the temperature data distributed within a certain range from left to right shows that the temperature data measured at each depth is changed at regular intervals. This is the temperature change amount by measurement cycle.

That is, the longitudinal graph z shown at the far right is the temperature data at the time of the initial measurement, and the longitudinal graph z ′ at the far left shows the last measured temperature data.

When the performance analysis and determination method for the grouting medium is described using the measured temperature data and the graph, the temperature data for the P1, P2, P3, and P4 points by major depths of the temperature change in the graph will be mainly described. .

[Table 1] Temperature Change Table for Main Points

division P1 P2 P3 P4 solstice 36.5 ℃ 34 ℃ 35 ℃ 33.5 ℃ Lowest point 32 ℃ 31.2 ℃ 32.2 ℃ 30.7 ℃

The temperature of the highest point of each point is the temperature data initially measured after the multi-point temperature sensing cable 21 is inserted into the heated borehole 15, and the temperature was measured after replacing the inside of the borehole 15 with room temperature water. Therefore, it is assumed that the initial environment inside the borehole is maintained at a uniform temperature in the borehole depth.

In this state, the heat radiated from the medium for each depth is transmitted by the temperature sensor 22 at each point through the water, and the temperature sensor at each point is transmitted to and stored in the temperature monitoring device.

As shown in the graph, even when the inside of the borehole is uniformly heated by the heating means, it can be seen that the temperature data for each depth is sensed differently according to the thickness of the grouting medium.

That is, as shown in the above table, in the case of the depth P1 and P3 of the borehole, the initial measurement temperature is about 36.5 ° C and 35 ° C which is somewhat higher than the other parts, and the final measured temperature data at which the measurement is finished is about 32 It can be seen that the temperature is maintained at a higher temperature than other parts at ℃ and 32.2 ℃. On the contrary, in the case of depths P2 and P3, the temperature at the initial measurement is about 34 ℃ and 33.5 ℃, and the final measured temperature data is It can be seen that it is observed slightly lower than other sites at about 31.2 ° C and 30.7 ° C.

The temperature inside the borehole heated under the same conditions was measured, but the temperature measurement data for each depth area were different, and the difference in temperature distribution was due to the thickness of the grouted medium and the heat transfer characteristics of the soil ground around the grouting medium. Different results.

That is, in the case of P1 and P3, the thickness of the grouting medium is thicker than other regions, and thus retains high temperature heat in the medium, so that the high temperature state is detected during the initial measurement, and the heat retained in the medium at the end of the measurement is finished. It can be seen that the temperature of the grouting medium is slightly higher than that of other parts. In the case of P2 and P4, the grouting thickness of the grouting medium is thinner than that of P1 and P3, so that the grouting medium is heated to a high temperature. Even if the heat is quickly discharged (heat radiation) to the adjacent soil ground of the grouting medium, even if the initial and final measurement temperatures are the same time compared to the P1 and P3 points, the lower temperature is measured through many heat releases.

In this way, a plurality of boreholes are drilled in a certain grouting area, and the grouting performance of the medium around the borehole is analyzed based on the temperature change data of the depths obtained from each borehole, and the safety diagnosis through grouting suitability or ground grouting medium is performed. To do it.

On the other hand, Figure 6 shows a simple schematic diagram of the ground grouting performance determination method using the heating means and the temperature monitoring apparatus according to another embodiment of the present invention.

That is, unlike one embodiment, a pair of drill holes 15, 15 'are drilled at a predetermined depth at positions where a constant distance is maintained in the grouting construction area (S-1); The heating means 30 is inserted into one of the drilled boreholes 15, and the other borehole 15 ′ is connected to a temperature monitoring device 25 installed outside and a plurality of temperatures in a single cable 24. After inserting and installing the multi-point temperature sensing cable 21 provided with a sensing sensor 22 at a predetermined interval (S-2), the media of the borehole 15 and the surroundings of the borehole are used by the heating means 30. Heated for a predetermined time and transferred through the grouting medium (10) or soft ground (5) from the borehole (15) in which the heating means (30) is installed by the multi-point temperature sensing cable (21) inserted into the other borehole (15 '). The temperature monitoring device 25 or the temperature monitoring device that undergoes a temperature monitoring step (S-3) of detecting the heat to obtain the temperature data for a predetermined time to the temperature monitoring device 25, and stores the obtained temperature data Temperature day from 25 Comprising the step of analyzing the grouting performance for a certain region around the borehole using the data obtained by the time received by the computer received the temperature change state measured by the time, the obtained temperature data is easy to determine the grouting performance It can be converted into various types of graphs.

Of course, in the temperature monitoring step (S-3) of obtaining the temperature data, the step of checking the information on the communication status, the temperature sensor position, and the temperature value between the temperature monitoring device 25 and the multi-point temperature sensing cable 21 ( Sa); and a measurement parameter input step (Sb) of setting and inputting measurement parameters of temperature data measured using the temperature monitoring device 25, are the same as the above-mentioned embodiment.

Another embodiment of the present invention also obtains temperature data using different heat transfer characteristics between the grouting medium and the soft ground medium in the same principle as the above-described embodiment, and using the obtained temperature data, The results of grouting are determined by comparing and analyzing the state of temperature change between non-grouting parts.

That is, when the non-grouted soft ground is distributed between each core tool, the heat transfer speed is faster than that of cement, which is the grouting medium. Therefore, the temperature detected by the initial temperature sensor is raised first compared to other parts. If the grouting medium is properly filled, the temperature will be detected late and will remain low.

Therefore, the results of the grouting area are judged in consideration of the fact that the temperature rises relatively in the grout between poorly grouted constructions, and that the temperature gradually changes while the grouting medium is sufficiently filled. .

The method of determining the grouting performance for the medium of the grouting ground according to the embodiment of the present invention made as described above does not interfere with the grouting operation because it does not need to perform the temperature monitoring at the same time as the grouting operation. There is an advantage that it can be conducted at any time without any time constraints to determine the performance.

In addition, when measuring temperature monitoring by drilling a separate borehole near the grouting as in the prior art, there is no problem that the grouting efficiency penetrates into the temperature monitoring borehole and the grouting efficiency is deteriorated. Since a lot of time and work force were required because the temperature monitoring should be carried out over a long time, in the present invention, the grouting performance can be determined within three hours. Therefore, the grouting performance can be checked over a large area at the same time. The rapid response of work can improve economic efficiency while reducing economic cost.

In addition, since a plurality of temperature sensors are used in a single cable at a necessary distance, the multi-point temperature sensing cable is used for easy movement and installation of the equipment, and is easy to carry and manage by reducing the volume of the temperature measuring equipment.

As described above, the ground grouting performance determination method using the heating means and the temperature monitoring device according to the present invention can be carried out at any time after the grouting without being subjected to temperature monitoring at the same time as the grouting injection. It is possible to measure the grouting performance, resulting in economic cost savings by reducing the number of people and the period required for measuring the grouting performance, and the grouting construction is not inconvenient for grouting construction work as it does not have to perform temperature monitoring at the same time as grouting work. It provides an easy advantage and provides a very useful grouting performance determination method that can promptly conduct verification after construction of grouting applied to various civil structures.

Claims (6)

Drilling a borehole corresponding to the grouting construction depth in the grouting construction area (S1); Inserting a predetermined heating means into the perforated borehole to heat the grouting medium around the borehole heated to a predetermined temperature in the borehole (S2); After the heating for a predetermined time after removing the heating means from the borehole filling the room temperature water in the borehole and replacing the warmed water with room temperature (S3); It is connected to the temperature monitoring device installed inside the borehole substituted with room temperature water, and the multi-point temperature sensing cable equipped with a plurality of temperature sensing sensors at regular intervals is inserted into a single cable to detect the media detected by the temperature sensing sensor located at each depth. Measuring dissipation heat for a predetermined time with a temperature monitoring device to obtain temperature data (S4); Grouting for a certain area around each borehole by using temperature change data displayed continuously for a predetermined time by the temperature monitoring device or the computer receiving data from the temperature monitoring device that acquires and stores temperature change data of each depth in the borehole. Analyzing and determining the performance (S5); Ground grouting performance determination method using a heating means and a temperature monitoring device comprising a. Drilling a set of boreholes to a predetermined depth at a position where a constant distance is maintained in the grouting construction area (S-1); Insert a heating means inside one of the drilled boreholes, and insert a multi-point temperature sensing cable connected to a temperature monitoring device installed in the other borehole and provided with a plurality of temperature sensing sensors at regular intervals in a single cable. Step (S-2); Using the heating means to heat the inside of the borehole and the surrounding borehole for a predetermined time, and to monitor the temperature transmitted through the medium from the borehole provided with the heating means with a multi-point temperature sensing cable inserted into the other borehole. Acquiring temperature data with the apparatus (S-3); Analyzing and determining the grouting performance of a certain area around the borehole using temperature change data displayed continuously for a predetermined time by the temperature monitoring device or the computer receiving the data from the temperature monitoring device storing the obtained temperature data. Step (S-4); Ground grouting performance determination method using the heating means and the temperature monitoring device comprising a. The method according to claim 1 or 2, Each step (S4) (S-3) of acquiring the temperature data includes the steps of checking information on a communication state, a temperature sensor position, and a temperature value between the temperature monitoring device and the multi-point temperature sensor cable (S-a); and And setting and inputting measurement parameters by using the temperature monitoring device (S-b). The ground grouting performance determination method using the heating means and the temperature monitoring device is included. The method of claim 3, The heating means is ground grouting using a heating means and a temperature monitoring device consisting of a heating unit consisting of a predetermined length and the heating unit is inserted into the borehole, and the power supply unit is provided at the end of the heating unit to supply external power to the heating unit. How to judge performance. The method of claim 3, Each temperature sensor provided in the multi-point temperature sensing cable is a memory capable of storing a unique address so that the temperature sensors at each point distributed at various positions by a 1-wire bus can be recognized by a single microprocessor. Ground grouting performance determination method using a heating means and a temperature monitoring device comprising a device. The method of claim 4, wherein The heat generating unit is ground grouting performance determination method using a heating means and a temperature monitoring device consisting of a heating wire consisting of a rod of a predetermined length.

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