CN115062809A - Tunnel advanced geological forecast risk early warning method, system and storage medium - Google Patents
Tunnel advanced geological forecast risk early warning method, system and storage medium Download PDFInfo
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Abstract
The invention provides a tunnel advanced geological forecast risk early warning method, a system and a storage medium, wherein the method comprises the following steps: acquiring at least one single forecasting result of a road section in front of a tunnel excavation working surface, wherein the single forecasting result comprises predicted geological risk and geological type; generating preliminary reminding data based on the acquired single item forecast result, and sending the preliminary reminding data to a construction unit, a supervision unit, an investigation and design unit and a construction unit for preliminary reminding; generating a comprehensive forecasting result based on the acquired at least one single forecasting result, wherein the comprehensive forecasting result comprises a geological risk level comprehensive result and a geological risk classification comprehensive result; and generating a risk early warning result based on the acquired comprehensive forecasting result, and sending the risk early warning result to a construction unit, a supervision unit, a survey design unit and a construction unit to finish risk early warning. The method can realize timely and effective management of the whole process of advanced geological forecast.
Description
Technical Field
The invention relates to the technical field of advance geological forecast of tunnels, in particular to a risk early warning method, a risk early warning system and a storage medium for advance geological forecast of tunnels.
Background
The advanced geological forecast refers to the detection, analysis, interpretation and forecast of engineering geological and hydrogeological conditions in front of a tunnel excavation working face and engineering properties, positions, occurrence states, scales and the like of unfavorable geologic bodies by means of geological survey, geophysical prospecting, geological advanced drilling, advanced pit guiding and the like on the basis of analyzing existing geological data, and technical measure suggestions are provided, so that the engineering geological and hydrogeological conditions in front of the tunnel excavation working face are further checked, the probability and the hazard degree of geological disasters are reduced, a geological basis is provided for optimizing engineering design, and engineering construction is guided to be carried out smoothly. The technical specification of advanced geological forecast of railway tunnels (Q/CR 9217-.
The advanced geological forecast of the tunnel generally adopts comprehensive forecast, namely, the forecast results of various methods are comprehensively analyzed and verified with each other by combining geological survey and exploration, geophysical prospecting and drilling, long distance and short distance, ground and underground and advanced pilot tunnel and main hole detection, so that the forecast accuracy is improved. In the forecasting process, tunnel forecasting methods, plans and technical requirements need to be dynamically adjusted in time according to geological conditions mastered in the forecasting implementation work and aiming at different types of geological problems.
The smooth implementation of advanced geological prediction and the effective utilization of the prediction results need close communication and coordination of a prediction implementation unit, a survey design unit, a construction unit and a supervision unit to participate in management together. In this regard, the technical rules for advanced geological prediction of railway tunnels (Q/CR 9217-: (1) the advanced geological forecast implementing unit shall report the advanced geological forecast result to the construction, supervision, survey design and construction unit in time; (2) when the forecast finds that the front geological condition is not accordant with the design, the design needs to be changed in time; (3) construction units should guide construction in time by using advanced geological forecast results.
Therefore, the tunnel advanced geological forecast has the characteristics of high information importance, more information demand, more information dynamic change and large information transmission quantity. However, most railway tunnel construction is located in mountainous areas with unsmooth road traffic and communication, information transmission difficulty among units and professionals is high, and timely and effective management of the whole process of advanced geological forecast is difficult to achieve. Therefore, how to realize timely and effective management of the whole process of the advance geological forecast of the tunnel is a technical problem to be solved urgently.
Disclosure of Invention
In view of the above, the present invention provides a method, a system and a storage medium for early warning of risk of advance geological forecast of a tunnel, so as to solve one or more problems in the prior art.
According to one aspect of the invention, the invention discloses a tunnel advanced geological forecast risk early warning method, which comprises the following steps:
acquiring at least one single forecasting result of a road section in front of a tunnel excavation working surface, wherein the single forecasting result comprises predicted geological risk and geological type;
generating preliminary reminding data based on the acquired single item forecast result, and sending the preliminary reminding data to a construction unit, a supervision unit, an exploration and design unit and a construction unit for preliminary reminding;
generating a comprehensive forecasting result based on the obtained at least one single forecasting result, wherein the comprehensive forecasting result comprises a geological risk level comprehensive result and a geological risk classification comprehensive result;
and determining a risk early warning result based on the generated comprehensive forecasting result, and sending the risk early warning result to a construction unit, a supervision unit, a survey design unit and a construction unit to finish risk early warning.
In some embodiments of the invention, obtaining at least one individual forecast of a section of road ahead of a tunnel excavation face comprises:
acquiring a plurality of single forecasting results of a road section in front of a tunnel excavation working surface;
generating a comprehensive forecast result based on the obtained at least one individual forecast result, including:
and generating a comprehensive forecasting result based on the acquired plurality of single forecasting results.
In some embodiments of the invention, the geological risk classification comprehensive result is at least one of weak surrounding rock, broken surrounding rock, gushing water, karst gushing water, rockburst, high ground temperature, gas and goaf; or the comprehensive result of the geological risk grade is primary, secondary or tertiary.
In some embodiments of the invention, the method further comprises:
acquiring the current face mileage and determining the initial mileage forecasted next time;
calculating the forecast delay length and the delay times based on the difference value of the current face mileage and the next forecast initial mileage;
and sending the forecast delay length and the forecast delay times to a construction unit, a supervision unit, a reconnaissance design unit and a construction unit.
In some embodiments of the present invention, determining a risk pre-warning result based on the generated comprehensive forecast result comprises:
judging the color corresponding to the risk level comprehensive result based on the acquired risk level comprehensive result;
and combining the color and the geological risk classification comprehensive result to form a risk early warning result.
In some embodiments of the present invention, the risk level integration result corresponds to one of green, yellow and red.
In some embodiments of the invention, when the geological risk classification comprehensive result is weak surrounding rock or broken surrounding rock, determining the risk level of the weak surrounding rock or broken surrounding rock based on the hardness degree and integrity degree of the surrounding rock and soil;
and when the comprehensive geological risk classification result is water inrush, acquiring the water seepage amount in a road section in front of the tunnel excavation working surface monitored by a water amount monitoring sensor, and determining the risk level of water inrush based on the water seepage amount.
In some embodiments of the invention, determining the risk level of water inrush based on water seepage comprises:
when the water seepage amount is less than or equal to 125L/(min 10m), the color corresponding to the risk level of the water inrush is yellow;
and when the water seepage amount is more than 125L/(min 10m), the color corresponding to the risk level of the water inrush is red.
According to another aspect of the present invention, a system for pre-warning tunnel geological forecast risk is further disclosed, the system includes a processor and a memory, the memory stores computer instructions, the processor is configured to execute the computer instructions stored in the memory, and when the computer instructions are executed by the processor, the system implements the steps of the method according to any one of the above embodiments.
According to yet another aspect of the invention, a computer-readable storage medium is also disclosed, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any of the embodiments above.
The tunnel advanced geological forecast risk early warning method disclosed by the embodiment of the invention is generally divided into a single forecast stage and a comprehensive forecast stage, namely, a single forecast result is firstly obtained, then the single forecast result is comprehensively analyzed, and the single forecast result and the comprehensive forecast result are both sent to a construction unit, a supervision unit, a survey design unit and a construction unit, so that related personnel can prevent the single forecast result as early as possible, and the construction risk is reduced. The method reduces the difficulty of information transmission among units in mountainous areas with unsmooth road traffic and communication, thereby realizing timely and effective management of the whole process of advanced geological forecast.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. For purposes of illustrating and describing some portions of the present invention, corresponding parts of the drawings may be exaggerated, i.e., may be larger, relative to other components in an exemplary apparatus actually manufactured according to the present invention. In the drawings:
fig. 1 is a schematic flow chart of a tunnel advanced geological prediction risk early warning method according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of geological risk two-stage early warning of the tunnel advanced geological forecast risk early warning method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
It should be emphasized that the term "comprises/comprising/comprises/having" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
The tunnel advanced geological forecast is carried out by adopting a tunnel advanced geological forecast risk early warning method, and the tunnel advanced geological forecast is generally divided into a single forecast stage and a comprehensive forecast stage. Firstly, adopting different forecasting distances (long distance, medium and long distance and short distance), different forecasting methods (geological survey method, drilling method, geophysical prospecting method and the like) and various single forecasts with different forecasting precisions to form a single forecasting conclusion, and then comprehensively analyzing single forecasting results to form a comprehensive forecasting conclusion. From finding geological risk signs or risk precursors through single forecasting to determining risks in comprehensive forecasting, early warning needs to be carried out through the processes of deep investigation, multi-aspect verification, analysis and study and judgment, and even continuous observation.
When the comprehensive forecasting method is adopted by combining the two-stage process of geological forecasting, the judgment of geological risk can be divided into two stages of preliminary judgment and detailed research and judgment. The preliminary judgment is rapid and approximate preliminary judgment made according to results of field geological survey, drilling, geophysical prospecting and the like in a single forecasting process. In the following comprehensive forecasting, a forecasting unit needs to make a more accurate judgment through comprehensive analysis and research and detailed study.
Specifically, hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts, or the same or similar steps.
Fig. 1 is a flowchart illustrating a risk pre-warning method for advanced geological prediction of a tunnel according to an embodiment of the present invention, as shown in fig. 1, the risk pre-warning method includes steps S10-S40.
Step S10: and acquiring at least one single forecasting result of the road section in front of the tunnel excavation working surface, wherein the single forecasting result comprises the predicted geological risk and geological type.
Before a single forecasting result is formed, single forecasting is generally required to be carried out on a road section in front of a tunnel excavation working surface, and a forecasting method, a forecasting distance and forecasting precision adopted by the single forecasting can be limited according to actual requirements. The purpose of the single forecast is to find geological risk signs or risk precursors in the road section, and the grade of geological risk can be exemplarily divided into three grades, such as that the first grade risk is no risk or low risk, the second grade risk is medium risk, and the third grade risk is high risk; for the first-level risk, safety accidents generally cannot occur, and tunnel construction is not influenced; for the secondary risk, general geological disasters can occur in tunnel construction, large safety accidents cannot occur, and tunnel construction is affected; for the third-level risk, a large or serious geological disaster may occur in the tunnel construction, a large or serious safety accident may be caused, and the tunnel construction is seriously influenced. The geological types can be divided into weak surrounding rocks, broken surrounding rocks, gushing water, karst gushing water, rockburst, high ground temperature, gas, goaf or other geological risks and the like. Wherein, the soft or broken surrounding rock contains soft rock, soft structural plane, fault and fault broken zone, joint dense zone, unconformity contact zone, fold distortion zone broken rock and the like, and the gushing water refers to the gushing water and gushing mud risk in the non-karst stratum, and the gushing water and gushing mud risk caused by karst and karst gushing water containing karst stratum and water soluble cavity.
The obtained single forecasting result can be a result obtained by relevant forecasting workers through manual observation and analysis, and can also be a surveying result obtained through other geological surveying equipment. Specifically, the forecast staff can further convey the analysis result to a system corresponding to the tunnel advanced geological forecast risk early warning method, or the system corresponding to the tunnel advanced geological forecast risk early warning method can also be directly connected with the surveying equipment, so that the tunnel advanced geological forecast risk early warning system can directly acquire the surveying result of the surveying equipment.
Step S20: and generating preliminary reminding data based on the acquired single item forecast result, and sending the preliminary reminding data to a construction unit, a supervision unit, an exploration and design unit and a construction unit for preliminary reminding.
In the step, after the single item forecast result in the road section in front of the tunnel excavation working face is obtained, the related department is preliminarily reminded based on the single item forecast result. If the geological risk of the current road section is predicted to be low and the tunnel construction is not influenced in the single forecasting process, the construction unit can carry out construction based on the construction plan; if the geological risk of the current road section is predicted to be high, serious or extra-large safety accidents can be caused, and then the geological risk can be timely fed back to relevant units for preliminary reminding, so that the relevant units can timely know the geological condition in the road section.
Step S30: and generating a comprehensive forecasting result based on the acquired at least one single forecasting result, wherein the comprehensive forecasting result comprises a geological risk level comprehensive result and a geological risk classification comprehensive result.
After the preliminary reminding is given to the relevant units based on the single forecasting result, the forecasting units further comprehensively analyze and research the geological types and the geological risks in the road section in front of the tunnel excavation working face, and therefore more accurate judgment is made. As shown in fig. 2, the number of single forecasting results predicted by the related forecasters in a certain road segment is multiple, and the number of geological risk types corresponding to the multiple single forecasting results is also multiple; after the predicted single item prediction results in a certain road section are sent to the relevant construction units, supervision units, survey design units and construction units, the prediction units conduct detailed research and judgment based on the single item prediction results, and therefore accurate judgment is made.
The comprehensive result of the risk level can be, for example, a first level, a second level or a third level, similar to a single forecast result, and the first level risk level can represent that safety accidents generally cannot happen and tunnel construction is not affected; the secondary risk level can represent that general geological disasters can occur in tunnel construction, large safety accidents cannot occur, and tunnel construction is influenced; the third-level risk level can represent that a large or serious geological disaster may occur in the tunnel construction, a large or serious safety accident may be caused, and the tunnel construction is seriously influenced.
The comprehensive results of geological risk classification are similar and can be divided into weak surrounding rocks, broken surrounding rocks, water burst, karst water burst, rockburst, high ground temperature, gas, goaf or other geological risks. It should be understood that the geological risk level and the geological risk classification result may be changed according to the actual application, for example, the risk level comprehensive result may be divided into six or eight levels, besides three levels.
Step S40: and determining a risk early warning result based on the generated comprehensive forecasting result, and sending the risk early warning result to a construction unit, a supervision unit, a survey design unit and a construction unit to finish risk early warning.
In the step, the risk early warning result is the superposition or combination of a plurality of geological risk level comprehensive results and geological risk classification comprehensive results. In an embodiment, two single-item prediction results are obtained, the geological risk in the first single-item prediction result is two-level, and the geological type is broken surrounding rock; the geological risk in the second single forecasting result is three-level, and the geological type is water inrush; then, an integrated forecast result is further generated based on the first individual forecast result and the second individual forecast result, and the risk early warning result corresponding to the integrated forecast result may be, for example: and (4) secondary crushing of surrounding rock and tertiary water inrush.
Further, acquiring at least one individual forecasting result of a road section in front of the tunnel excavation working surface, comprising: acquiring a plurality of single forecasting results of a road section in front of a tunnel excavation working surface; generating a comprehensive forecast result based on the at least one obtained individual forecast result, including: and generating a comprehensive forecasting result based on the acquired plurality of single forecasting results.
Further, the early warning method for the tunnel advanced geological forecast risk further comprises the following steps: acquiring the current face mileage and determining the starting mileage forecasted next time; calculating the forecast delay length and the delay times based on the difference value of the current face mileage and the next forecast initial mileage; and sending the forecast delay length and the forecast delay times to a construction unit, a supervision unit, a reconnaissance design unit and a construction unit. For example, if the current face mileage is recorded as B, and the next predicted initial mileage is recorded as C, whether the prediction is delayed is determined based on the value of B-C, if B-C > 0: the delay is counted and the length of the delay is recorded. B-C is 0-10 m: delay 0 times; delaying for 1 time, wherein B-C is 10-20 m (including 10 m); and B-C is 20-30 m (including 20m), … … times of delay is performed, and the like.
Specifically, the implementation of prediction can be divided into two modes of continuous prediction and discontinuous prediction. Namely, if the planned 'ending mileage' of the corresponding row in 'design information- > forecast information initialization' on the platform is far away from the actual ending mileage of the last forecast, namely the forecast task of the current row is not finished, the tasks listed in the row are still executed in the next forecast, and the continuous forecast mode is adopted at the moment; and if the planned 'ending mileage' of the corresponding row in the 'design information- > forecast information initialization' on the platform is close to or equal to the actual ending mileage of the last forecast, namely the forecast task of the current row is already executed, the next forecast will execute the tasks listed in other rows, and the discontinuous forecast mode is adopted.
In an embodiment of the present invention, determining a risk early warning result based on the generated comprehensive forecasting result includes: judging the color corresponding to the risk level comprehensive result based on the acquired risk level comprehensive result; and combining the color and the geological risk classification comprehensive result to form a risk early warning result.
In this embodiment, to facilitate displaying the level of geological risk, different colors may be used to represent different levels of risk. For example, when the risk level integration result is divided into a first level, a second level and a third level, the color corresponding to the risk level integration result is one of green, yellow and red. Where green represents primary, yellow represents secondary, and red represents tertiary. The risk early warning result corresponding to the comprehensive forecast result may be, for example, broken surrounding rock/yellow + water inrush/red.
Further, when the comprehensive geological risk classification result is weak surrounding rock or broken surrounding rock, determining the risk level of the weak surrounding rock or broken surrounding rock based on the hardness degree and the integrity degree of surrounding rock and soil in the road section in front of the tunnel excavation working face. In the step, weak surrounding rocks or broken surrounding rocks can be divided into a plurality of grades according to the hardness degree and the integrity degree of the surrounding rocks, and in the actual surveying process, the grade of the road section is judged based on the hardness degree and the integrity degree of the surrounding rock soil in the road section in front of the tunnel excavation working face.
In addition, when the comprehensive geological risk classification result is water inrush, determining the risk level of the water inrush based on the water seepage amount in the road section in front of the tunnel excavation working surface. Illustratively, when the water seepage amount in a road section in front of the tunnel excavation working face is less than or equal to 125L/(min 10m), the color corresponding to the risk level of water inrush is yellow, and the yellow can also correspond to the second level; when the seepage quantity is more than 125L/(min 10m), the color corresponding to the risk level of the water inrush is red, and the red can also correspond to three levels. In addition, before the risk level of water inrush is determined, the water seepage amount in the road section can be further monitored through a water amount monitoring sensor, namely, the water seepage amount in the road section in front of the tunnel excavation working face monitored by the water amount monitoring sensor is obtained in real time.
Specifically, for geological risks of medium and higher levels (yellow and red), the geological risk type and the geological risk level are correspondingly presented in the preliminary reminding and risk early warning, such as water inrush/yellow. In addition to the preliminary warning of weak or broken surrounding rock, green-grade geological risks need not be reported separately. If no geological risk of intermediate or higher order is found in this forecast, it is only necessary to report it as green overall, as shown in the following table. In the following table, (green), (yellow) and (red) in the column of the preliminary reminder and the risk pre-warning indicate the base colors of the corresponding front cells, and for example, in the preliminary reminder with the serial number of 1, (green) behind the level iii cell indicates that the color of the level iii cell is green when the level iii cell is specifically displayed.
TABLE 1 geological Risk type and two-stage reminding Mark
When the complexity of multiple types of risk concurrency occurs in the same paragraph in the tunnel, the type and level of each risk should be reported. For example, when the front of the tunnel face of a certain tunnel is judged in detail through comprehensive forecast, and risks of fault fracture zone (level: yellow) and water inrush (level: red) exist at the same time, the geological risk early warning is a group of comprehensive risks: broken surrounding rock/yellow + gushing water/red.
When the primary judgment of the geological risk is carried out through a single forecasting method such as geological survey and the like, the primary reminding can be carried out on the water inrush risk of weak or broken surrounding rocks and non-karst strata according to the grade of the surrounding rocks. The judgment of the rest risks requires the forecaster to draw conclusions through more professional technical analysis.
When the tunnel is constructed in a weak or broken stratum, risks such as large deformation and collapse of soft rock are easy to occur. The surrounding rock grade is a common index which comprehensively reflects the hardness degree and the integrity degree of rock and soil bodies, and the soft rock and soil bodies and the broken zone rock bodies are IV-VI grades mostly.
According to the relevance between the grade of the surrounding rock and the hardness degree and the integrity degree of the surrounding rock, the railway advanced geological forecast information system preliminarily reminds the geological risk brought by weak or broken surrounding rock by utilizing the grade of the surrounding rock (after correction) judged by single forecasting such as tunnel face sketch. When the grades of the surrounding rocks (after correction) are I, II and III grades, the method can preliminarily judge that no weak surrounding rocks or broken zones have geological risks or the risks are low, and the risk grade is green; when the grade of the (corrected) surrounding rock is IV grade, certain geological risk of weak surrounding rock or a broken zone may exist, and the risk grade is yellow; when the grade of the surrounding rock (after correction) is V and VI, the surrounding rock is relatively weak and broken, the geological risk is high, and the risk grade is red, which is shown in the following table. Similarly in the following table, (green), (yellow), (red) means that the base color of its corresponding front cell is green, yellow or red.
TABLE 2 grading of the preliminary alert of the risk of weak or broken surrounding rock
The method also carries out preliminary reminding of the risk of water inrush of the non-karst stratum. Specifically, when the surrounding rock near the face is anhydrous, and no gushing water or mud risk is found in the front, the geological risk level is as follows: green (preliminary reminder); when the grade of the corrected surrounding rock is I, II and III grades, and the seepage quantity is less than or equal to 125L/(min 10m) (wet or drip-shaped water outlet, rain-shaped or line-shaped water outlet), the geological risk grade can be judged to be yellow, and the geological risk is described as follows: gush/yellow (preliminary alert); when the grade of the corrected surrounding rock is I, II and III, and the seepage quantity is more than 125L/(min 10m) (when water flows out in a gushing manner), the geological risk grade can be judged to be red, and the geological risk is described as follows: gush/red (preliminary alert); when the grade of the corrected surrounding rock is IV, V and VI and the water inrush exists, the geological risk grade can be judged to be red, and the geological risk is described as follows: gush/red (preliminary reminder), as detailed in the table below. Similarly to the above tables 1 and 2, (green), (yellow), (red) in the representation method example may not be displayed at the time of specific display, which is only used to explain that the ground color of the corresponding front cell is green, yellow or red.
TABLE 3 grading of preliminary reminders of risk of water inrush (non-karst formation) water inrush
Correspondingly, the invention also discloses a tunnel advanced geological forecast risk early warning system, which comprises a processor and a memory, wherein the memory is stored with computer instructions, the processor is used for executing the computer instructions stored in the memory, and when the computer instructions are executed by the processor, the system realizes the steps of the method of any one of the above embodiments.
Through the embodiment, the tunnel advanced geological forecast risk early warning method is generally divided into a single forecast stage and a comprehensive forecast stage, namely, a single forecast result is obtained firstly, then the single forecast result is subjected to comprehensive analysis, and the single forecast result and the comprehensive forecast result are sent to a construction unit, a supervision unit, a survey design unit and a construction unit, so that related personnel can prevent the tunnel advanced geological forecast risk early, and the construction risk is reduced. The method reduces the difficulty of information transmission among units for mountainous areas with unsmooth road traffic and communication, thereby realizing the timely and effective management of the whole process of advanced geological forecast.
In addition, the invention also discloses a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method according to any of the above embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative components, systems, and methods described in connection with the embodiments disclosed herein may be implemented as hardware, software, or combinations of both. Whether this is done in hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments in the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A tunnel advance geological forecast risk early warning method is characterized by comprising the following steps:
acquiring at least one single forecasting result of a road section in front of a tunnel excavation working surface, wherein the single forecasting result comprises predicted geological risk and geological type;
generating preliminary reminding data based on the acquired single item forecast result, and sending the preliminary reminding data to a construction unit, a supervision unit, an investigation and design unit and a construction unit for preliminary reminding;
generating a comprehensive forecasting result based on the obtained at least one single forecasting result, wherein the comprehensive forecasting result comprises a geological risk level comprehensive result and a geological risk classification comprehensive result;
and determining a risk early warning result based on the generated comprehensive forecasting result, and sending the risk early warning result to a construction unit, a supervision unit, a survey design unit and a construction unit to finish risk early warning.
2. The method for pre-warning the risk of forecasting the advance geology of the tunnel according to claim 1, wherein the step of obtaining at least one single forecasting result of the road section in front of the tunnel excavation working surface comprises the following steps:
acquiring a plurality of single forecasting results of a road section in front of a tunnel excavation working surface;
generating a comprehensive forecast result based on the obtained at least one individual forecast result, including:
and generating a comprehensive forecasting result based on the acquired plurality of single forecasting results.
3. The method for pre-warning tunnel geological forecast risk according to claim 1, wherein the comprehensive geological risk classification result is at least one of weak surrounding rock, broken surrounding rock, water inrush, karst water inrush, rockburst, high ground temperature, gas and goaf; or the comprehensive result of the geological risk grade is primary, secondary or tertiary.
4. The method for pre-warning of tunnel advanced geological forecast risk according to claim 1, further comprising:
acquiring the current face mileage and determining the starting mileage forecasted next time;
calculating the forecast delay length and the delay times based on the difference value of the current face mileage and the next forecast initial mileage;
and sending the forecast delay length and the forecast delay times to a construction unit, a supervision unit, a reconnaissance design unit and a construction unit.
5. The method for risk pre-warning of advanced geological forecasting of tunnel according to claim 3, wherein determining a risk pre-warning result based on the generated comprehensive forecasting result comprises:
judging the color corresponding to the risk level comprehensive result based on the acquired risk level comprehensive result;
and combining the color and the geological risk classification comprehensive result to form a risk early warning result.
6. The method as claimed in claim 5, wherein the color corresponding to the risk level synthesis result is one of green, yellow and red.
7. The method for pre-warning the tunnel advanced geological forecast risk according to claim 3, wherein when the geological risk classification comprehensive result is weak surrounding rock or broken surrounding rock, the risk level of the weak surrounding rock or broken surrounding rock is determined based on the hardness degree and the integrity degree of surrounding rock and soil;
and when the comprehensive geological risk classification result is water inrush, acquiring the water seepage amount in a road section in front of the tunnel excavation working surface monitored by a water amount monitoring sensor, and determining the risk level of water inrush based on the water seepage amount.
8. The method for pre-warning of risk of advance geological forecast of tunnel according to claim 7,
determining a risk level of the gushing water based on the amount of seepage, comprising:
when the water seepage amount is less than or equal to 125L/(min 10m), the color corresponding to the risk level of the water inrush is yellow;
and when the water seepage amount is more than 125L/(min 10m), the color corresponding to the risk level of the water inrush is red.
9. A tunnel look-ahead risk pre-warning system comprising a processor and a memory, wherein the memory has stored therein computer instructions for executing the computer instructions stored in the memory, and wherein the system when the computer instructions are executed by the processor implements the steps of the method of any one of claims 1 to 8.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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