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CN107747263B - A system and control evaluation method for adjusting the perforated void ratio of frozen soil by using an inflatable air bag - Google Patents

A system and control evaluation method for adjusting the perforated void ratio of frozen soil by using an inflatable air bag Download PDF

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Publication number
CN107747263B
CN107747263B CN201711018736.1A CN201711018736A CN107747263B CN 107747263 B CN107747263 B CN 107747263B CN 201711018736 A CN201711018736 A CN 201711018736A CN 107747263 B CN107747263 B CN 107747263B
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temperature sensor
carbon fiber
conductive carbon
fiber mesh
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CN107747263A (en
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刘国光
牛富俊
林战举
尹国安
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Northwest Institute of Eco Environment and Resources of CAS
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Cold and Arid Regions Environmental and Engineering Research Institute of CAS
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C3/00—Foundations for pavings
    • E01C3/04—Foundations produced by soil stabilisation
    • 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
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • 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
    • E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/17—Geometrical or physical properties including an electric conductive element
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0051—Including fibers
    • E02D2300/0068—Including fibers made from carbon
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/10—Miscellaneous comprising sensor means

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Architecture (AREA)
  • Road Paving Structures (AREA)
  • Greenhouses (AREA)

Abstract

本发明涉及一种利用充气气囊调节冻土贯通孔隙比的系统及控制评价方法。系统包括导电碳纤维网、若干充气气囊、表层温度传感器、内置温度传感器、主控电脑、电源和底部温度传感器，充气气囊设置在导电碳纤维网上，导电碳纤维网、表层温度传感器、内置温度传感器、底部温度传感器与主控电脑连接，主控电脑和电源连接。本发明提供的主动调节冻土贯通孔隙比的碳纤维结构系统能在主控电脑控制下使柔性充气气囊膨胀展开从而填充进土基孔隙中，降低冻土的贯通孔隙比，从而改善冻土热平衡，具有实际应用价值。

The invention relates to a system and a control evaluation method for adjusting the perforated porosity ratio of frozen soil by using an inflatable air bag. The system includes conductive carbon fiber mesh, several inflatable airbags, surface temperature sensor, built-in temperature sensor, main control computer, power supply and bottom temperature sensor, the inflatable airbag is set on the conductive carbon fiber mesh, conductive carbon fiber mesh, surface temperature sensor, built-in temperature sensor, bottom temperature sensor The sensor is connected with the main control computer, and the main control computer is connected with the power supply. The carbon fiber structure system that actively adjusts the through-pore ratio of frozen soil provided by the invention can expand and expand the flexible inflatable airbag under the control of the main control computer to fill the pores of the soil base, reduce the through-pore ratio of the frozen soil, and improve the thermal balance of the frozen soil. Has practical application value.

Description

The system and control evaluation method of frozen soil perforation void ratio are adjusted using air bag
Technical field
The invention belongs to Geotechnical Engineering fields, adjust frozen soil perforation hole using air bag more particularly to a kind of Than system and control evaluation method.
Background technique
Frozen soil is distributed more widely general in China, and northern area is generally in seasonal frozen ground region.In Qinghai-xizang Plateau Region, even more There is the Plateau Permafrost Regions due to caused by height above sea level.Freeze as mankind's activity is continuously increased with global warming phenomenon, many years Soil degeneration, the appearance on the thermokarst lake pool, the degeneration of the ecosystem, freezing-thawing disaster take place frequently always researcher and engineering technology The problem of personnel's critical concern.
The degeneration of ever-frozen ground is the thermal energy that the thermal energy absorbed because of earth's surface is less than radiation from physical angle, so as to cause The thermostabilization of frozen soil is unbalance, causes the continuous decline of the depth of freezing.Convection current, radiation and conduction are three kinds in a variety of heat transfer types Main influence factor takes for this purpose, researcher, which has attempted the modes such as sunshade, sunshading board, reduces the incidence of heat radiation The mode of hot pin reduces the invasion of heat transfer, and the mode of vent-pipe foundation is taken to reduce the influence of thermal convection, achieves preferable work Journey application effect.
However, the temperature control measures that existing method applies mainly for the macrostructure of roadbed, to by improving roadbed frozen soil The improvement thermally equilibrated technical proposal research of frozen soil is less in turn for micro-structure, and the case of engineer application is even more rare.
For this purpose, the development of incorporation engineering material technology and the status of construction ability, propose that one kind can be from microstructure Regulate and control frozen soil perforation porosity to which active control frozen soils temperature changes the technical method of trend, further increases with this method By force to the temperature control capacity of roadbed, to the ecological environment of protection Permafrost Area, the value with practical application.
Summary of the invention
To solve the above-mentioned problems, frozen soil perforation hole is adjusted using air bag the purpose of the present invention is to provide a kind of The system of ratio, to improve frozen soil region roadbed and basis is prevented and reduced natural disasters ability.
Another object of the present invention is to provide a kind of controls that frozen soil perforation void ratio system is adjusted using air bag Method.
A further object of the present invention is to provide a kind of evaluations that frozen soil perforation void ratio system is adjusted using air bag Method.
It is intended to up to above-mentioned target, the purpose of the present invention is achieved through the following technical solutions:
It is a kind of using air bag adjust frozen soil perforation void ratio system, comprising: conductive carbon fiber mesh, air bag, Skin temperature sensor, built-in temperature sensor, main control computer, power supply and bottom temp sensor, conductive carbon fiber mesh merging Frozen soil layer, skin temperature sensor are set to earth's surface, measure earth's surface soil temperature；Built-in temperature sensor is set to underground conduction Carbon fibre web position measures conductive carbon fiber mesh and surrounding soil temperature；Bottom temp sensor is set to conductive carbon fiber mesh Lower section, for measuring the position soil temperature；Air bag is self-enclosed needle-shaped flexible body, interior preliminary filling ammonia, expansion system Number is maximum, and one end is connected to the conductive carbon fiber mesh other end can free extension；Conductive carbon fiber mesh, skin temperature sensor, Built-in temperature sensor and bottom temp sensor are connect with main control computer, and main control computer is connected with power supply.
The present invention adjusts the control method of frozen soil perforation void ratio system, the following step executed in order using air bag It is rapid:
1) the S1 stage of acquisition endosexine temperature sensor reading: in this stage, system energization, main control computer obtains table The reading of layer temperature sensor, built-in temperature sensor, subsequently into the S2 stage；
2) judge whether to open the S2 stage of air bag: in this stage, main control computer is according to skin temperature sensor, built-in The reading of temperature sensor judges whether it is conductive carbon fiber mesh energization, if it is judged that being "Yes", then enters the S3 stage；Such as Fruit judging result is "No", then returns to the S1 stage；
3) open the S3 stage of air bag: in this stage, conductive carbon fiber mesh is generated heat after being powered, and air bag is heated swollen Swollen, the free extension in the soil body fills internal void, subsequently into the S4 stage；
4) judge whether to stop the S4 stage of power supply: in this stage, main control computer is according to skin temperature sensor, built-in The reading of temperature sensor judges whether to stop to be that conductive carbon fiber mesh is powered, if it is judged that being "Yes", then returns to S1 rank Section；Otherwise the S3 stage is returned；
The evaluation method provided by the invention that frozen soil perforation void ratio system is adjusted using air bag, including hold in order Row the following steps:
1) the S1 stage of system free time: in this stage, system waits user instruction, enters S2 after user, which issues, to be instructed Stage；
2) judge whether to the S2 stage of evaluation: in this stage, system according to user instructions, judges whether to lead Temperature control performance evaluation after dynamic adjusting frozen soil perforation void ratio enters the S3 stage if evaluation result is "Yes"；Otherwise it returns The S1 stage；
3) the S3 stage of acquisition evaluation comparison temperature: in this stage, main control computer acquires the reality of bottom temp sensor Then Shi Wendu is included in the S4 stage；
4) carry out the S4 stage of temperature control effect assessment: in this stage, main control computer is according to skin temperature sensor, built-in The real time data of temperature sensor and bottom temp sensor feedback, analysis by actively adjust frozen soil perforation void ratio after the soil body The capacity of heat transmission, evaluation conductive carbon fiber mesh be powered front and back frozen soil perforation void ratio variation, subsequently into the S5 stage；
5) the S5 stage that evaluation terminates: in this stage, system stops the temperature data of acquisition bottom temp sensor, this Secondary evaluation terminates.
Present invention has the advantage that
1, the soil body is the three-phase body of soil particle, water and air composition, and the presence of air has hole, and the present invention uses Air bag very little, thin such as hair, expanded by heating, the free extension in the soil body can find hole in the soil body, fill Internal void blocks hole, cuts off the channel of heat transfer, then stops being that conductive carbon fiber mesh is powered.It adjusts and freezes for active Soil perforation void ratio provides prerequisite.
2, conductive carbon fiber mesh is placed in frozen soil layer, and skin temperature sensor is set to earth's surface, built-in temperature sensor setting In underground conductive carbon fiber mesh position, conductive carbon fiber mesh and surrounding soil temperature are measured；Bottom temp sensor, which is set to, leads Electric carbon fiber side off the net, for measuring the position soil temperature；Above-mentioned device is that construction provides convenience.It can be used as conventional soil Work cloth is laid immediately on the upper layer of control area.
3, the effect after frozen soil penetrates through void ratio is actively adjusted for measuring the position soil temperature and evaluation.For monitoring soil Body opening gap provides more reliable safety guarantee.
(3) active control frozen soil penetrates through void ratio.It is unfolded by air bag and is closed, can cuts off and open perforation hole Between connection, thus regulate and control perforation soil body void ratio, realize Bidirectional temperature-controlling effect from top to down and from bottom to top.
Detailed description of the invention
Fig. 1 is present system composition schematic diagram.
Fig. 2 is present system process blocks schematic diagram.
Fig. 3 is the control method flow chart of present system.
Fig. 4 is the evaluation method flow chart of present system.
Specific embodiment
Frozen soil perforation void ratio is adjusted using air bag to provided by the invention in the following with reference to the drawings and specific embodiments System and control evaluation method be described in detail:
As shown in Fig. 1-Fig. 2, the system provided by the invention for adjusting frozen soil perforation void ratio using air bag, comprising: Conductive carbon fiber mesh 1, several air bags 2, skin temperature sensor 3, built-in temperature sensor 4, main control computer 5, power supply 6 With bottom temp sensor 7, conductive carbon fiber mesh 1 is placed in frozen soil layer, and skin temperature sensor 3 is set to earth's surface, measures earth's surface Soil temperature；Built-in temperature sensor 4 is set to 1 position of underground conductive carbon fiber mesh, measures conductive carbon fiber mesh 1 and surrounding soil Temperature；Bottom temp sensor 7 is set to 1 lower section of conductive carbon fiber mesh, for measuring the position soil temperature；Air bag 2 be self-enclosed needle-shaped flexible body, interior preliminary filling ammonia, coefficient of expansion maximum.2 one end of air bag binds or is welded in conduction Carbon fibre web 1, the other end can free extensions；Conductive carbon fiber mesh 1, skin temperature sensor 3, built-in temperature sensor 4 and bottom Portion's temperature sensor 7 is connect with main control computer 5, and main control computer 5 and power supply 6 connect.
Ever-frozen ground is influenced constantly to degrade by global warming, and one of main cause is the input of Ground Heat Sources Over, Summer top frost zone constantly transmits downwards from thawing, heat is frozen into, and causes ever-frozen ground temperature to rise and even melts. The system is just desirable to using construction freezing method, and freezing soil excavates at this time, under the foundation portion, more than frozen soil upper limit be laid with it is enough More, thin air bag 2(also freezes at this time), the soil body and air bag 2 are all in subzero, balloon contraction after burying.When summer heat Amount input, i.e., when will influence 2 place soil layer of air bag, temperature sensor generates apparent temperature fluctuation and temperature difference, this Temperature is promoted to above freezing, the hole of filling frozen soil after air bag 2 is opened by Shi Tong electricity, the active as electric blanket of air bag 2 Gap.In this way, before heat transfer to solum, the through channel of formation large area, by earth's surface melt water and shield heat away in air bag On.As same layer showerproof cloth or one layer of thermal insulation layer can form one layer of very low Jie of thermal coefficient to a certain extent Matter, so that lower part ever-frozen ground is protected, it is few by thermal perturbation as far as possible.
Construction freezing method is used during the foundation construction of Permafrost Area, in order to guarantee that the soil body is in state at negative temperature.This hair The bright conductive carbon fiber mesh 1 for connecting several air bags 2 freezes in advance, and gas in air bag 2 is made to be in low-temperature shrink shape State.It constructs to after predetermined absolute altitude, bottom temp sensor 7 is embedded in the soil body of designed elevation lower part 10cm depth by drilling It is interior, it takes out conductive carbon fiber mesh 1 and is unfolded to be laid on the soil body rapidly, while placing built-in temperature sensor 4, carry out soil immediately Body is backfilled and is compacted, and skin temperature sensor 3 is arranged after construction to base top mark height, and conductive carbon fiber mesh 1, skin temperature are passed Sensor 3, built-in temperature sensor 4, bottom temp sensor 7 are connect with main control computer 5, complete system installation.
After startup power supply, automated system operation, in the temperature of the skin temperature sensor 3 of setting, built-in temperature sensor 4 After relationship occurs, conductive carbon fiber mesh 1 is set to generate heat for the energization of conductive carbon fiber mesh 1, gas expansion in air bag 2, along the soil body Hole expansion stretching, extension, penetrates through hole to cut off in frozen soil.
As shown in figure 3, the control method provided by the invention for adjusting frozen soil perforation void ratio system using air bag, mesh The conductive carbon fiber mesh 1 for being several air bags 2 and connecting, conductive carbon fiber mesh 1 actively opens after experiencing temperature fluctuation Air bag.The following steps that whole process executes in order:
1) the S1 stage that acquisition endosexine temperature sensor 3 is read: in this stage, system energization, main control computer 5 obtains The reading of skin temperature sensor 3, built-in temperature sensor 4, subsequently into the S2 stage；
2) judge whether to open the S2 stage of air bag: in this stage, main control computer 5 is according to skin temperature sensor 3, interior The reading for setting temperature sensor 4 judges whether it is the energization of conductive carbon fiber mesh 1, if it is judged that being "Yes", then enters S3 rank Section；If it is judged that being "No", then the S1 stage is returned；
3) open the S3 stage of air bag: in this stage, conductive carbon fiber mesh 1 is generated heat after being powered, and air bag is actively opened, and is filled 2 expanded by heating of gas air bag, the free extension in the soil body fill internal void, block hole, cut off the channel of heat transfer, so Enter the S4 stage afterwards；
4) judge whether to stop the S4 stage of power supply: in this stage, main control computer 5 is according to skin temperature sensor 3, interior The reading for setting temperature sensor 4 judges whether to stop to be that conductive carbon fiber mesh 1 is powered, if it is judged that being "Yes", then returns The S1 stage；Otherwise the S3 stage is returned；
As shown in figure 4, the evaluation method provided by the invention for being adjusted frozen soil perforation void ratio system using air bag, is commented The method of valence focuses on the temperature control effect for being to see system.Engineering in general protection is frozen soil upper limit, if frozen soil upper limit is through long-term Monitoring is remained unchanged or is moved up, and illustrates that system is effective, if frozen soil upper limit moves down, illustrates that system is problematic or work progress In it is problematic.The following steps that the evaluation of system executes in order:
1) the S1 stage of system free time: in this stage, system waits user instruction, enters S2 after user, which issues, to be instructed Stage；
2) judge whether to the S2 stage of evaluation: in this stage, system according to user instructions, judges whether to lead Temperature control performance evaluation after dynamic adjusting frozen soil perforation void ratio enters the S3 stage if evaluation result is "Yes"；Otherwise it returns The S1 stage；
3) the S3 stage of acquisition evaluation comparison temperature: in this stage, main control computer 5 acquires bottom temp sensor (7) Real time temperature, be then included in the S4 stage；
4) carry out the S4 stage of temperature control effect assessment: in this stage, main control computer 5 is according to skin temperature sensor 3, interior The real time data that temperature sensor 4 and bottom temp sensor 7 are fed back is set, after analysis is by actively adjusting frozen soil perforation void ratio The capacity of heat transmission of the soil body, the variation of frozen soil perforation void ratio before and after evaluation conductive carbon fiber mesh 1 is powered, subsequently into the S5 stage；
5) the S5 stage that evaluation terminates: in this stage, system stops the temperature data of acquisition bottom temp sensor 7, This evaluation terminates.

Claims (4)

1.一种利用充气气囊调节冻土贯通孔隙比的系统， 所述的系统包括导电碳纤维网（1）、充气气囊（2）、表层温度传感器（3）、内置温度传感器（4）、主控电脑（5）、电源（6）和底部温度传感器（7），其特征在于：导电碳纤维网（1）置入冻土层，表层温度传感器（3）设置于地表，测量地表土体温度；内置温度传感器（4）设置于地下导电碳纤维网（1）位置，测量导电碳纤维网（1）及周围土体温度；底部温度传感器（7）设置于导电碳纤维网（1）下方，用于测量该位置土体温度；充气气囊（2）一端连接于导电碳纤维网（1），另一端可自由伸展；导电碳纤维网（1）、表层温度传感器（3）、内置温度传感器（4）和底部温度传感器（7）与主控电脑（5）连接，主控电脑（5）和电源（6）连接。1. A system for adjusting the through-hole ratio of frozen soil by using an inflatable air bag, the system comprising a conductive carbon fiber mesh (1), an inflatable air bag (2), a surface temperature sensor (3), a built-in temperature sensor (4), a main control The computer (5), the power supply (6) and the bottom temperature sensor (7) are characterized in that: the conductive carbon fiber mesh (1) is inserted into the permafrost layer, and the surface temperature sensor (3) is arranged on the surface to measure the temperature of the surface soil; The temperature sensor (4) is arranged at the position of the underground conductive carbon fiber mesh (1) to measure the temperature of the conductive carbon fiber mesh (1) and the surrounding soil; the bottom temperature sensor (7) is arranged under the conductive carbon fiber mesh (1) to measure the position Soil temperature; one end of the inflatable airbag (2) is connected to the conductive carbon fiber mesh (1), and the other end can be freely stretched; the conductive carbon fiber mesh (1), the surface temperature sensor (3), the built-in temperature sensor (4) and the bottom temperature sensor ( 7) Connect to the main control computer (5), the main control computer (5) and the power supply (6). 2.根据权利要求1所述一种利用充气气囊调节冻土贯通孔隙比的系统，其特征在于：所述的充气气囊（2）为自封闭针状柔性体，其内填充氨气。2 . The system for adjusting the permafrost porosity ratio by using an inflatable air bag according to claim 1 , wherein the inflatable air bag ( 2 ) is a self-sealing needle-shaped flexible body, which is filled with ammonia gas. 3 . 3.一种利用充气气囊调节冻土贯通孔隙比系统的控制方法，采用权利要求1所述的利用充气气囊调节冻土贯通孔隙比系统，其特征在于：所述的控制方法按顺序执行下列步骤：3. A control method for adjusting the permafrost through-hole ratio system using an inflatable air bag, adopting the system for adjusting the permafrost through-hole ratio using an inflatable air bag according to claim 1, it is characterized in that: the described control method executes the following steps in order : 1）采集表层温度传感器读数的S1阶段：在此阶段中，系统通电，主控电脑（5）获得表层温度传感器（3）、内置温度传感器（4）的读数，然后进入S2阶段；1) The S1 stage of collecting the readings of the surface temperature sensor: In this stage, the system is powered on, the main control computer (5) obtains the readings of the surface temperature sensor (3) and the built-in temperature sensor (4), and then enters the S2 stage; 2）判断是否打开气囊的S2阶段：在此阶段中，主控电脑（5）根据表层温度传感器（3）、内置温度传感器（4）的读数判断是否为导电碳纤维网（1）通电，如果判断结果为“是”，则进入S3阶段；如果判断结果为“否”，则返回S1阶段；2) S2 stage of judging whether to open the airbag: In this stage, the main control computer (5) judges whether the conductive carbon fiber mesh (1) is energized according to the readings of the surface temperature sensor (3) and the built-in temperature sensor (4). If the result is "Yes", enter the S3 stage; if the judgment result is "No", then return to the S1 stage; 3）打开气囊的S3阶段：在此阶段中，导电碳纤维网（1）通电后发热，充气气囊（2）受热膨胀，在土体中自由伸展，填充内部孔隙，然后进入S4阶段；3) S3 stage of opening the airbag: In this stage, the conductive carbon fiber mesh (1) heats up after being energized, and the inflatable airbag (2) expands due to heat, expands freely in the soil, fills the internal pores, and then enters the S4 stage; 4）判断是否停止供电的S4阶段：在此阶段中，主控电脑（5）根据表层温度传感器（3）、内置温度传感器（4）的读数判断是否停止为导电碳纤维网（1）通电，如果判断结果为“是”，则返回S1阶段；否则返回S3阶段。4) S4 stage of judging whether to stop the power supply: In this stage, the main control computer (5) judges whether to stop energizing the conductive carbon fiber mesh (1) according to the readings of the surface temperature sensor (3) and the built-in temperature sensor (4). If the judgment result is "Yes", then return to the S1 stage; otherwise, return to the S3 stage. 4.一种利用充气气囊调节冻土贯通孔隙比系统的评价方法，采用权利要求1所述的利用充气气囊调节冻土贯通孔隙比的系统，其特征在于：所述的评价方法按顺序执行下列步骤：4. A method for evaluating a system for adjusting the perforated void ratio of frozen soil by utilizing an inflatable air bag, using the system for adjusting the void ratio of permafrost through an inflatable air bag according to claim 1, wherein the evaluation method executes the following in sequence: step: 1）系统空闲的S1阶段：在此阶段中，系统等待用户指令，当用户发出指令后进入S2阶段；1) S1 stage when the system is idle: In this stage, the system waits for the user's instruction, and enters the S2 stage after the user issues an instruction; 2）判断是否进行评价的S2阶段：在此阶段中，系统根据用户指令，判断是否进行主动调节冻土贯通孔隙比后的控温性能评价，如果评价结果为“是”，则进入S3阶段；否则返回S1阶段；2) S2 stage of judging whether to conduct the evaluation: In this stage, the system judges whether to conduct the temperature control performance evaluation after actively adjusting the permafrost void ratio according to the user's instructions. If the evaluation result is "Yes", it will enter the S3 stage; Otherwise, return to the S1 stage; 3）采集评价对比温度的S3阶段：在此阶段中，主控电脑（5）采集底部温度传感器（7）的实时温度，然后计入S4阶段；3) The S3 stage of collecting and evaluating the comparison temperature: in this stage, the main control computer (5) collects the real-time temperature of the bottom temperature sensor (7), and then counts it into the S4 stage; 4）进行控温效果评价的S4阶段：在此阶段中，主控电脑（5）根据表层温度传感器（3）、内置温度传感器（4）和底部温度传感器（7）反馈的实时数据，分析通过主动调节冻土贯通孔隙比后土体的导热能力，评价导电碳纤维网（1）通电前后冻土贯通孔隙比的变化，然后进入S5阶段；4) S4 stage of temperature control effect evaluation: In this stage, the main control computer (5) analyzes the real-time data fed back by the surface temperature sensor (3), the built-in temperature sensor (4) and the bottom temperature sensor (7). Actively adjust the thermal conductivity of the soil after the permafrost void ratio, evaluate the change of the permafrost perforation ratio before and after electrification of the conductive carbon fiber mesh (1), and then enter the S5 stage; 5）评价结束的S5阶段：在此阶段中，系统停止采集底部温度传感器（7）的温度数据，本次评价结束。5) Stage S5 when the evaluation is over: In this stage, the system stops collecting the temperature data of the bottom temperature sensor (7), and the evaluation ends.
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