KR101285773B1 - Measuring system of frost heaving distress on asphalt concrete pavement and construction method of pavement using the same - Google Patents

Measuring system of frost heaving distress on asphalt concrete pavement and construction method of pavement using the same Download PDF

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KR101285773B1
KR101285773B1 KR20100119578A KR20100119578A KR101285773B1 KR 101285773 B1 KR101285773 B1 KR 101285773B1 KR 20100119578 A KR20100119578 A KR 20100119578A KR 20100119578 A KR20100119578 A KR 20100119578A KR 101285773 B1 KR101285773 B1 KR 101285773B1
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layer
sensing unit
asphalt
asphalt pavement
pavement
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KR20100119578A
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KR20120057994A (en
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이윤한
진정훈
조명환
홍사장
지기환
심재필
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주식회사 케이엠티엘
주식회사 도화엔지니어링
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Abstract

The present invention relates to the field of civil engineering, and more particularly, to an in-phase measurement system of an asphalt pavement that can measure the in-phase of the asphalt pavement 10 and an asphalt pavement method including the same. In particular, the present invention is to measure the in-phase of the asphalt pavement 10, the lower layer temperature sensing unit 112 for sensing the temperature of the lower pavement layer 20 formed on the asphalt concrete layer 30; A water content non-sensing unit 120 for sensing a moisture content of the packaging lower layer 20; The in-phase of the asphalt pavement 10, characterized in that it comprises a; information processing unit for monitoring whether or not the in-phase of the asphalt pavement 10 by the sensing information of the lower temperature sensing unit 110 and the water non-sensing unit 120 We present a measurement system 100 and an asphalt pavement method including the same.

Description

Asphalt pavement measurement system for asphalt pavement and asphalt pavement method including same {MEASURING SYSTEM OF FROST HEAVING DISTRESS ON ASPHALT CONCRETE PAVEMENT AND CONSTRUCTION METHOD OF PAVEMENT USING THE SAME}

The present invention relates to the field of civil engineering, and more particularly, to an in-phase measurement system of an asphalt pavement that can measure the in-phase of the asphalt pavement 10 and an asphalt pavement method including the same.

In asphalt pavement, one of the important points is to prevent the breakage of asphalt pavement due to frost heave due to low temperature in winter.

In other words, if the temperature of the low temperature continues in winter, the ice layer develops by freezing moisture in the auxiliary base or roadbed, and the ice layer grows by absorption of ambient moisture, causing the asphalt pavement to rise, which is called frostbite.

The pavement is raised and destroyed by the frostbite phenomenon. Also, when the temperature rises again and the ice layer melts, the asphalt pavement is completely destroyed. The destruction of the asphalt pavement is called frostbite.

However, frostbite phenomena are caused not only by temperature but also by complex factors such as pavement components of each layer of asphalt pavement, water content of each layer of asphalt pavement, and cracking of each layer of asphalt pavement. In addition, the conditions of occurrence of frostbite, such as temperature, low temperature duration, water content, etc. change irregularly from time to time and it is not easy to check the cracking of each layer of asphalt pavement.

Therefore, there is no way to accurately determine whether or not the frostbite of the asphalt pavement is clear until the asphalt pavement is greatly destroyed and visually confirmed. Therefore, the repair of the asphalt pavement is often delayed and is frequently managed for rapid repair of the asphalt pavement. It is pointed out that the problem should be made.

In addition, since there is no way to warn in advance of the destruction of the asphalt pavement due to frostbite, it is pointed out that an accident occurs often because the access to the asphalt pavement is not blocked.

The present invention has been made to solve the above problems, an object of the present invention is to provide an asphalt pavement measurement system and an asphalt pavement method including the same that can measure the in-phase of the asphalt pavement.

In order to solve the above problems, the present invention is to measure the in-phase of the asphalt pavement 10, the lower layer temperature sensing unit 112 for sensing the temperature of the lower pavement layer 20 formed on the asphalt concrete layer 30 ); A water content non-sensing unit 120 for sensing a moisture content of the packaging lower layer 20; The in-phase of the asphalt pavement 10, characterized in that it comprises a; information processing unit for monitoring whether or not the in-phase of the asphalt pavement 10 by the sensing information of the lower layer temperature sensing unit 112 and the water non-sensing unit 120 The metrology system 100 is presented.

The lower layer temperature sensing unit 112 and the water non-sensing unit 120 may be provided for each of the hearth layer 22, the in-phase prevention layer 24, and the auxiliary base layer 26 of the packaging lower layer 20.

Concrete layer temperature sensing unit 114 for sensing the temperature of the base layer 32 and the surface layer 36 of the asphalt concrete layer 30, in order to provide data for the anti-frostbit monitoring to the information processing unit, and the atmosphere The air temperature sensing unit 116, such as a solar meter, a wind vane for sensing the temperature may be further included.

The lower layer temperature sensing unit 112 and the water non-sensing unit 120 may be spaced apart from each other along the width direction and the length direction of the asphalt pavement 10.

The lower layer temperature sensing unit 112 and the water non-sensing unit 120 may be installed at the top, middle, and bottom of the height of each layer of the asphalt pavement 10.

In order to provide data for monitoring the in-phase prevention to the information processing unit, a displacement sensing unit 130 for sensing the displacement of the asphalt pavement 10 may be further included.

The displacement sensing unit 130 may include a first displacement sensor 132 provided between the base layer 32 of the asphalt concrete layer 30 and the auxiliary base layer 26 of the pavement lower layer 20.

The displacement sensing unit 130 may further include a second displacement sensor 134 installed between each layer and the layers of the asphalt concrete layer 30.

The information processing unit is embedded in the asphalt pavement 10 or installed around the asphalt pavement 10, the field collecting unit 150 for collecting the sensing information of the lower temperature sensing unit 110 and the water non-sensing unit 120 ); And, it may include a monitoring unit 160 for monitoring the presence or absence of frostbite by processing the information collected in the field collecting unit 150 by the communication with the field collecting unit 150.

The field collecting unit 150 may be installed around the field collecting unit 150 and may receive power from an independent power source unit 170 for solar power generation.

It is installed through the asphalt concrete layer and the pavement lower layer 20, it may further include a water content measuring tube 140 for measuring the water content.

In addition, in order to solve the above problems, the present invention is an asphalt pavement 10 method to which the in-phase measurement system 100 of the above-described asphalt pavement 10 is applied, and the pavement method of the pavement lower layer 20 is for forming each layer. A laying step of laying the laying member (22a) and embedding the sensing part in the layer forming laying member (22a) so as to be protected by the same laying member (22b) that is finer than the layer forming laying member (22a); Presenting an asphalt paving method comprising a; finishing step of finishing by laying the layer laid in the laying step.

In addition, in order to solve the above problems, the present invention is an asphalt pavement 10 method to which the in-phase measurement system 100 of the above-described asphalt pavement 10 is applied, and the pavement method of the asphalt concrete layer 30 is the pavement lower layer. A substrate forming step of forming a substrate 32 on the substrate 20; An intermediate layer forming step of forming an intermediate layer 34 on the base layer 32 and installing a cable connecting the concrete layer temperature sensing unit 114 and the information processing unit to the intermediate layer 34; A surface layer forming step of forming a surface layer 36 on the intermediate layer 34; After the surface layer forming step, a groove 36a is formed in the asphalt concrete layer 30 by a coring method, and the concrete layer temperature sensing unit 114 is installed in the groove 36a to provide the cable and It provides an asphalt paving method comprising a; measuring installation step of connecting.

The present invention can accurately and easily measure whether the asphalt pavement in phase, and can use this measurement information as a data to study the environmental impact of the atmosphere on the asphalt pavement.

1 or less relates to the present invention,
1 is a configuration diagram of the in-phase measurement system.
Figure 2 is a cross-sectional view of the asphalt pavement applied to the in-phase measurement system.
Figure 3 is a longitudinal cross-sectional view of the asphalt pavement applied to the in-phase measurement system.
Figure 4 is a plan view of the asphalt pavement applied to the in-phase measurement system.
Figure 5 is a view showing the packaging lower layer packaging operation.
Figure 6 is a view showing the measurement installation step of the asphalt pavement.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figure 1 below, the in-phase measurement system 100 of the asphalt pavement 10 according to the present invention, is installed on the asphalt pavement 10 to measure whether the in-phase.

Therefore, since it is possible to accurately monitor the statue of the asphalt pavement 10 in real time, repair and warning can be made according to the statue of the asphalt pavement 10 can be made quickly, the asphalt pavement 10 management as described above frostbite measurement Management of the asphalt pavement 10 may be easier because it is made automatically by the system 100.

In addition, the measurement information of the in-phase measurement system 100 may be utilized as data to study the environmental impact of the atmosphere on the asphalt pavement (10).

Referring to the configuration of the in-phase measurement system 100 as described above in more detail as follows.

First, the structure of the asphalt pavement 10 may be largely divided into an asphalt concrete layer 30 formed on the asphalt pavement 10 and a pavement lower layer 20 formed under the asphalt concrete layer 30. .

Asphalt concrete layer 30 may be formed in the order of the base layer 32, the intermediate layer 34, the surface layer (36). The lower packaging layer 20 may be formed in the order of the hearth layer 22 and the auxiliary base layer 26. In addition, the present invention is useful in a region having a high frostbite probability, in which the frostbite prevention layer 24 may be further formed between the hearth layer 22 and the auxiliary base layer 26 to prevent frostbite. The structure of the above-described asphalt pavement 10 is presented with respect to the pavement method that is commonly made, of course, the in-phase measurement system 100 of the present invention is not necessarily limited to the asphalt pavement 10 of the above-described structure no.

The in-phase measurement system 100 may include a temperature sensing unit 110 and a water-containing non-sensing unit 120 for acquiring temperature and moisture content information, which are main environmental variables of the in-phase phenomenon.

In particular, the asphalt concrete layer 30 is an impermeable layer, and the in-phase phenomenon actually occurs in the pavement lower layer 20. Thus, the temperature sensing unit 110 may include a lower layer temperature sensing unit 112 for sensing the temperature of the lower packaging layer 20, and the water non-sensing unit 120 is installed to sense the moisture content of the packaging lower layer 20. Can be.

Therefore, by directly monitoring the lower pavement layer 20 in which frostbite phenomena occur in the asphalt pavement 10, by sensing the temperature and moisture content, which is a major environmental variable of the frostbite phenomenon, whether the frostbite of the asphalt pavement 10 scientifically and systematically Can be measured.

Furthermore, the lower layer temperature sensing unit 112 and the water non-sensing unit 120 may be directly installed on the packaging lower layer 20 because it is preferable to directly measure the packaging lower layer 20 for more accurate measurement and analysis of in-phase causes. . In particular, since the physical properties of each layer of the lower layer of the packaging 20 is not the same, the lower layer temperature sensing unit 112 and the water content non-sensing unit 120, respectively, to each layer of the lower packaging layer 20 for more accurate measurement and analysis of the cause of in-phase Can be installed. That is, the lower layer temperature sensing unit 112 and the water non-sensing unit 120 may be provided for each of the hearth layer 22, the in-phase prevention layer 24, and the auxiliary base layer 26 of the packaging lower layer 20.

In addition, the lower layer temperature sensing unit 112 and the water non-sensing unit 120 may be installed at each of the upper, middle, and lower heights of each layer, but in order to accurately measure changes in only each layer of the lower layer layer 20. It can be installed in the middle of the height of each floor. To this end, the lower layer temperature sensing unit 112 and the water non-sensing unit 120 may be installed from the beginning together with the asphalt paving operation. In particular, as shown in Figure 5, the packaging operation of each layer of the paving lower layer 20 is installed in each layer forming laying material 22a, the lower layer temperature sensing unit 112 and the water non-sensing unit 120 layer A laying step of embedding in the layer forming laying member 22a so as to be protected by the same laying member 22b finer than the forming laying member 22a; And, it may include a finishing step of finishing by chopping the layer laid in the installation step. Therefore, the lower layer temperature sensing unit 112 and the water non-sensing unit 120 are installed during the asphalt paving operation, and are buried in a form protected by a fine laying material, so that each layer forming material 22a that is relatively rough in the finishing step is formed. The damage of the lower layer temperature sensing unit 112 and the water-containing non-sensing unit 120 may be prevented, and the characteristics of each layer may be maintained by using the same laying material 22b.

In addition, the lower layer temperature sensing unit 112 and the water non-sensing unit 120, in order to avoid mutual structural and electrical signal interference between the width direction of the asphalt pavement 10 in the form of a zigzag as shown, and It can be installed spaced apart from each other along the longitudinal direction.

On the other hand, the above-described temperature sensing unit 110 is a concrete layer temperature sensing unit 114 for sensing the temperature of the base layer 32 and the surface layer 36 of the asphalt concrete layer 30, respectively, such as a sunshine meter, wind direction anemometer The air temperature sensor 116 may further include an air temperature sensor. That is, by providing the temperature and atmospheric temperature information of the base layer 32 and the surface layer 36 together with the data for the prevention of frostbite, more accurate measurement can be made, the environmental impact of the atmosphere can be studied.

Here, the concrete floor temperature sensing unit 114 is also installed from the beginning with the asphalt paving work, it is preferable to be installed in the middle of the height of each floor. To this end, the paving method of the asphalt concrete layer 30 includes a base layer forming step of forming a base layer 32 on the paving lower layer 20; An intermediate layer forming step of forming an intermediate layer 34 on the base layer 32, and installing a cable C connecting the concrete layer temperature sensing unit 114 and the information processing unit to be described later on the intermediate layer 34; A surface layer forming step of forming a surface layer 36 on the intermediate layer 34; After the surface layer forming step, the grooves 36a are formed in the asphalt concrete layer 30 by a coring method, and the concrete layer temperature sensing unit 114 is installed in the grooves 36a to connect with the cable C. Measurement installation step; may include. The grooves 36a may be covered by a core 36b by coring. Accordingly, the concrete layer temperature sensing unit 114 can be prevented from being damaged by the asphalt paving operation.

The temperature sensing unit 110 may use a thermocouple and thermistor in that the temperature measurement range is -100 ° C. to 400 ° C. and the measurement range is wide and used for temperature measurement. In addition, the temperature sensing unit 110 may be any type as long as it can sense the internal temperature of the asphalt pavement 10. Since the temperature sensor technology for measuring the temperature of the asphalt pavement 10, the atmosphere and the like is known a lot more detailed description of the temperature sensing unit 110 is omitted.

In addition, the water content sensing unit 120 has various types such as a non-destructive method using dielectric constant, electrical conductivity (inverse of specific resistance), elastic wave speed, etc. according to a method of measuring the water content ratio. Excellent and long-term TDR method capable of manual measurement and automatic measurement can be applied to the present invention. In addition, the water content sensing unit 120 may be any one as long as it can measure the moisture content of the asphalt pavement 10. As a technique for measuring the moisture content of the asphalt pavement 10 and the like is well known, a more detailed description of the water content sensing unit 120 is omitted.

In addition, the measurement system 100 according to the present invention may further include a displacement sensing unit 130 for sensing a displacement of the asphalt pavement 10 in order to provide data for the prevention of frostbite. That is, since it is possible to monitor whether the asphalt pavement 10 is substantially in phase through the displacement sensing unit 130, more accurate measurement can be made.

Here, since the damage of the asphalt concrete layer 30 in the asphalt pavement 10 is for measuring purposes, the displacement sensing unit 130 is an auxiliary device of the base layer 32 and the pavement lower layer 20 of the asphalt concrete layer 30. It may include a first displacement sensor 132 installed between the layers (26).

Furthermore, the displacement sensing unit 130 further includes a second displacement sensor 134 provided between each layer and the layers of the asphalt concrete layer 30, so that more accurate and detailed measurement can be made.

In addition, the measurement system 100 according to the present invention is installed through the asphalt concrete layer and the pavement lower layer 20, it may further include a water content measuring tube 140 for measuring the water content. That is, by comparing and analyzing the measurement result of the water content measuring tube 140 with the measurement result by the water content non-sensing unit 120, more accurate measurement can be made. Since the water content measuring tube 140, which is a water content ratio sensor of the tube type, is well known, a detailed description thereof will be omitted.

The sensing information of the temperature sensing unit 110, the water non-sensing unit 120, the displacement sensing unit 130, and the water content measuring tube 140 is processed by the information processing unit, thereby monitoring whether the asphalt pavement 10 is in phase. can do. For example, the information processing unit determines whether the temperature of the lower packaging layer 20 is below zero by the lower layer temperature sensing unit 112, and the water content of the packaging lower layer 20 is reduced by the water content sensing unit 120, and the displacement sensing unit 130. Displacement of the asphalt pavement 10 is generated through), it can be treated as the frostbite occurred.

The information processing unit is structurally embedded in the asphalt pavement 10 or installed around the asphalt pavement 10 to collect the above-mentioned sensing information and the field collecting unit 150 and the field collecting unit 150 by field communication by the communication with the field collecting unit 150. It may include a monitoring unit 160 for processing the information collected in the unit 150 to monitor whether the statue.

The field collector 150 may include a data logger 152 installed in the control box. The data logger 152 may convert the above-described sensing information measured as an analog signal into a digital signal. In addition, the data logger 152 may calculate the measurement result converted into a digital signal by the temperature and the water content ratio (volume moisture content), and may store the statistically processed result in the internal memory. In addition, the data logger 152 may be periodically synchronized with the server-class computer 162 of the monitoring unit 160 to modify the measurement time of the sensing unit 110, 120, 130, 140 through the window computer 162 program.

In addition, the field collector 150 may include a channel expander (not shown) when the number of the sensing units 110, 120, 130, and 140 is larger than the channels of the data logger 152. That is, if the data logger 152 has 15 channels and the sensing units 110, 120, 130, and 140 are 34 in total, 34 channels may be secured by extending the channel through the channel expander.

In addition, the field collecting unit 150 may include a wireless modem 154 in order to continuously transmit measurement data by wireless communication with the monitoring unit 160, the wireless modem 154 is operating in a CDMA method A communication network of a mobile communication company may be used, but is not necessarily limited thereto.

Such a field collector 150 is installed around the field collector 150 and may receive power from an independent power source unit 170 for solar power generation. That is, the independent power supply unit 170 charges electricity to the storage battery in a solar power generation method, and the field collecting unit 150 is operated by receiving electricity charged in the storage battery of the independent power supply unit 170, and operates to the sensing units 110, 120, 130, and 140 described above. Can supply electricity Hereinafter, many independent power supply units 170 are known in the solar power generation method, and the present invention is not limited to a specific technology, and thus, detailed description thereof will be omitted.

The monitoring unit 160 may include a server-class computer 162 in which a monitoring control program is installed as described above. The server-class computer 162 may access the data logger 152 to perform program transfer, data collection, and real-time monitoring. In addition, the server-class computer 162 can check the memory margin of the data logger 152, through this function can determine the time it takes to fill the memory of the data logger 152, and by grasping the time to collect data Can be determined. The server class computer 162 can also view the programs and data files of the datalogger 152, format the memory, delete unnecessary programs, stop the current program, and delete other stored programs. You can also get started.

The monitoring unit 160 may also include a wireless modem 164 for wireless communication between the server-class computer 162 and the data logger 152 of the field collecting unit 150.

As described above, the in-phase measurement system 100 of the asphalt pavement 10 according to the present invention may measure only one cross section of the asphalt pavement, but in order to more accurately measure the asphalt pavement 10 as a whole, the fill part and the cut part It is possible to integrate and measure a variety of cross-sections, such as a cut boundary section and a low soil section.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

10; Asphalt paving 20; Pavement underlayer
30; Asphalt concrete layer 100; Frostbite measurement system
110; A temperature sensing unit 120; Function non-sensing unit
130; Displacement sensing unit 140; Water content measuring tube
150; Field collecting unit 160; Monitoring section
170; Independent Power Supply

Claims (13)

As to measure whether the asphalt pavement 10 in phase,
A lower layer temperature sensing unit 112 for sensing a temperature of the lower pavement layer 20 formed under the asphalt concrete layer 30;
A water content non-sensing unit 120 for sensing a moisture content of the packaging lower layer 20;
An information processing unit for monitoring whether the asphalt pavement 10 is in phase by sensing information of the lower layer temperature sensing unit 112 and the water non-sensing unit 120;
The base layer 32 of the asphalt concrete layer 30 and the auxiliary base layer 26 of the pavement lower layer 20 so as to sense the displacement of the asphalt pavement 10 to provide data for monitoring the in-phase presence in the information processing unit. Displacement sensing unit 130 including a first displacement sensor 132 installed between the;
In-phase measurement system 100 of the asphalt pavement 10, characterized in that it comprises. The method according to claim 1,
Asphalt pavement, characterized in that the lower layer temperature sensing unit 112 and the water non-sensing unit 120 is provided for each of the sub-layer 22, the in-phase prevention layer 24, the auxiliary base layer 26 of the paving lower layer 20, respectively. The in-phase measurement system 100 of (10). The method according to claim 2,
Concrete layer temperature sensing unit 114 for sensing the temperature of the base layer 32 and the surface layer 36 of the asphalt concrete layer 30, in order to provide data for the anti-frostbit monitoring to the information processing unit, and the atmosphere In-phase measurement system 100 of the asphalt pavement 10, characterized in that it further comprises an atmospheric temperature sensing unit for sensing the temperature. The method according to any one of claims 1 to 3,
The lower layer temperature sensing unit 112 and the water non-sensing unit 120 are installed in phase measurement system (100) of the asphalt pavement (10), characterized in that spaced apart from each other in the width direction and the longitudinal direction of the asphalt pavement (10). The method according to any one of claims 1 to 3,
The lower layer temperature sensing unit 112 and the water non-sensing unit 120 is in phase measurement system (100) of the asphalt pavement (10), characterized in that installed in the middle of the height of each layer of the asphalt pavement (10). delete delete The method according to claim 3,
The displacement sensing unit 130 is in phase measurement system 100 of the asphalt pavement 10, characterized in that it further comprises a second displacement sensor 134 installed between each layer and the layer of the asphalt concrete layer 30. . The method according to any one of claims 1,2,3,8,
The information processing unit is embedded in the asphalt pavement 10 or installed around the asphalt pavement 10, the field collecting unit 150 for collecting the sensing information of the lower layer temperature sensing unit 112 and the water-containing non-sensing unit 120 ); And a monitoring unit 160 for processing the information collected in the field collecting unit 150 by communication with the field collecting unit 150 to monitor whether the statue is in phase. Frostbite measurement system (100). The method according to claim 9,
The field collecting unit 150 is installed around the field collecting unit 150 and is supplied with power from an independent power source unit 170 for solar power generation, the in-phase measurement system (100) of the asphalt pavement (10). The method according to any one of claims 1,2,3,8,
The in-phase measurement system (100) of the asphalt pavement (10) is installed through the asphalt concrete layer and the pavement lower layer (20), further comprising a water content measuring tube (140) for measuring the water content. As the asphalt paving method to which the in-phase measurement system 100 of the asphalt pavement 10 of any one of claims 1,2,3,8 is applied,
The packaging method of the packaging lower layer 20,
Each layer forming laying member 22a is installed, and the lower layer temperature sensing unit 112 and the water non-sensing unit 120 are protected by the same laying member 22b that is finer than the layer forming laying member 22a. A laying step of embedding in the layer forming laying material (22a);
Finishing step of finishing by chopping the layer laid in the installation step;
Asphalt paving method comprising a. As the asphalt paving method to which the in-phase measurement system 100 of the asphalt paving 10 of claim 3 is applied,
The paving method of the asphalt concrete layer 30,
A base layer forming step of forming a base layer 32 on the lower packaging layer 20;
An intermediate layer forming step of forming an intermediate layer 34 on the base layer 32 and installing a cable connecting the concrete layer temperature sensing unit 114 and the information processing unit to the intermediate layer 34;
A surface layer forming step of forming a surface layer 36 on the intermediate layer 34;
A measurement installation step of forming a groove in the asphalt concrete layer 30 by a coring method after installing the surface layer and installing the concrete layer temperature sensing unit 114 in the groove;
Asphalt paving method comprising a.
KR20100119578A 2010-11-29 2010-11-29 Measuring system of frost heaving distress on asphalt concrete pavement and construction method of pavement using the same KR101285773B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106124553A (en) * 2016-07-08 2016-11-16 安徽理工大学 A kind of Multifunction frost heave test instrument

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
대한토목학회 정기학술대회 2005년 10월(페이지 3899 내지 3902) *
대한토목학회지 2010년 5월 제58권 제5호(페이지 33 내지 36) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106124553A (en) * 2016-07-08 2016-11-16 安徽理工大学 A kind of Multifunction frost heave test instrument
CN106124553B (en) * 2016-07-08 2018-10-19 安徽理工大学 A kind of novel and multifunctional frost heave test instrument

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