CN108629524A - A kind of tunnels and underground engineering risk assessment and management method - Google Patents
A kind of tunnels and underground engineering risk assessment and management method Download PDFInfo
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- 238000007726 management method Methods 0.000 title claims abstract description 72
- 238000012502 risk assessment Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 43
- 238000010276 construction Methods 0.000 claims abstract description 38
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
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Abstract
The invention discloses a kind of tunnels and underground engineering risk assessment and management methods,Determine risk target and monitoring index content,Panel of expert is set up to investigate risk target,Obtain the survey data of risk target,The data of investigation are handled,Obtain a series of set of research and appraisal indexs,Determine methods of risk assessment,The effect of being calculated according to appraisal procedure and assessing risk target coefficient value,Calculated total efficiency coefficient value is classified by rule,Management and prevention so as to administrative staff to risk,Determine risk management layer,Formulate risk management target,Formulate risk management contents,It checks and whether hard objectives risk solves and release,Total efficiency coefficient value can be easily calculated using efficiency coefficient method,Administrative staff can be faster,Scheme of controlling risk and the measure solved the problems, such as are formulated more in time,Quadratic risk function assessment is carried out to risk target after managing risk target,The safety of construction personnel is ensured,Construction speed and construction property safety.
Description
Technical field
The present invention relates to risk analysis of tunnel and management domain, specially a kind of tunnels and underground engineering risk assessment and pipe
Reason method.
Background technology
The risk assessment in tunnel is to investigate thoroughly risk factors from construction source, rationally determines risk class, abandons or change and is residual
The engineering proposal that risk is high is stayed, risk processing and surveillance and control measure is proposed, carries out the risk management of system, improve the management water of risk
It is flat, it is intended to ensure safety, environmental protection, ensure the duration, controlled investment, improve benefit.
Risk assessment and management should be adjusted dynamically in force, to ensure that risk assessment is smooth.
The risk assessment target in tunnel is：It is worked by risk assessment, identifies all potential risks factors, determine risk
Grade proposes risk treatment measures, various risks is dropped to acceptable level, and safety, environmental protection, guarantee work are ensured to reach
Phase, controlled investment, the purpose improved benefit.
The risk assessment target in tunnel has：
(1) security risk：Casualties, economic loss, third party's casualties, third party's economic loss, construction delay
Deng；
(2) duration risk：Construction delay, economic loss etc.；
(3) investment risk：Economic loss, third party's economic loss etc.；
(4) environment breaks unreal, economic loss, third party's economic loss etc..
The method of risk assessment has：The side such as risk analytic hierarchy process (AHP), matrix method, Fuzzy Comprehensive Evaluation, brainstorming
Method.
Risk identification is the basis of risk assessment, also makes the important step in risk analysis, and the purpose is in searching project
All possible risk factors.
Risk identification follows scientific, systemic, comprehensive, predictive principle.Risk identification is generated according to risk
Root or classification etc. establish the tree-shaped or layer structure for embodying risk factors and event category and hierarchical relationship, form risk and refer to
Mark system, in conjunction with engineering practice, the mode for establishing risk tablet menu is identified.
But existing risk analysis of tunnel has the following defects with management method：
(1) method of domestic existing risk assessment has：Risk exponential, Fault Tree Analysis, obscures analytic hierarchy process (AHP)
Comprehensive Evaluation and method etc. can be opened up, still, when using above method dynamic evaluation the risk of tunnel construction there is also it is certain not
Foot is mainly shown as that personal subjectivity influences big, calculating process complexity etc., to make the time lengthening of risk assessment, is unfavorable for
Timely management and risk control to risk factors and place, to increase the uncertain factor of risk, security risk is larger.
(2) management method is that corresponding scheme and measure are taken in the region larger to risk after existing risk assessment, is adopted
No longer detect original risk target after taking, in such risk target may also there are residual risk factors, can be to construction personnel
Safety threatens, or is adversely affected to construction progress, or causes greater loss to construction property.
Invention content
In order to overcome the shortcomings of that prior art, the present invention provide a kind of tunnels and underground engineering risk assessment and management
Method can easily calculate total efficiency coefficient value using efficiency coefficient method, administrative staff can faster, formulate control risk more in time
Scheme and the measure solved the problems, such as, so that the risk of constructing tunnel and loss are reduced to minimum, to wind after managing risk target
Dangerous target carries out quadratic risk function assessment, to by remaining risk control to tolerance interval, greatly ensure constructor
Safety, construction speed and the construction property safety of member, can effectively solve the problem that the problem of background technology proposes.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of tunnels and underground engineering risk assessment and management method, a kind of tunnels and underground engineering methods of risk assessment,
Include the following steps：
S100, risk target and monitoring index content are determined, sets up panel of expert and risk target is investigated, obtains wind
The survey data of dangerous target；
S200, the data of investigation are handled, obtains a series of set of research and appraisal indexs；
S300, the effect of determining methods of risk assessment, being calculated according to appraisal procedure and assess risk target coefficient value；
S400, calculated total efficiency coefficient value is classified by rule, management and prevention so as to administrative staff to risk.
Further, the monitoring index content in the step S100 includes mainly：Vault (earth's surface) sedimentation, periphery are received
Hold back, underground water, face observation, supporting construction observation etc..
Further, the method for the processing survey data in the step S200 is as follows：
A satisfactory value and not permissible value first are determined to each single item risk target, obtain the satisfactory value of evaluation index：Xhi(i
=1,2 ..., n) and evaluation goal not permissible value Xsi(i=1,2 ..., n), XhiAnd XsiRespectively i-th evaluation index
The not permissible value of satisfactory value and i-th of evaluation index；
Then expert gives a mark to the factual survey result of every risk target, obtains the actual value of evaluation index：Xi
(i=1,2 ..., n), Xi are the actual value of i-th of evaluation index.
Further, the methods of risk assessment in the step S300 is " efficiency coefficient method ", obtains efficiency coefficient value
Computational methods are as follows：
S301, the effect of a evaluation index coefficient value is calculated：
diFor i-th of evaluation index the effect of coefficient value；
After S302, expert score to every risk target, normalized weight is obtained using analytic hierarchy process (AHP), utilize with
Lower formula calculates normalized weight coefficient：
PiAnd wiThe normalized weight coefficient of the flexible strategy and i-th of evaluation index of respectively i-th evaluation index；
S303, the general power coefficient value according to the result Calculation Estimation object of two above formula:
D is general power coefficient value.
Further, total efficiency coefficient value criteria for classification in the step S400 is as follows：
(1) for total efficiency coefficient value within the scope of 60-70, risk class is evaluated as highest, at this moment using red instruction, in advance
Alert rank is emergency alarm；
(2) total efficiency coefficient value is within the scope of 70-80, and risk class is evaluated as medium, at this moment uses orange instruction, in advance
Alert rank is moderate alarm；
(3) total efficiency coefficient value is within the scope of 80-90, and risk class is evaluated as relatively low, at this moment yellow is used to indicate, in advance
Alert rank is slight alarm；
(4) for total efficiency coefficient value within the scope of 90-100, risk class is evaluated as minimum, at this moment use green instruction,
Warning level is no alarm.
6. a kind of management method of tunnels and underground engineering risk, includes the following steps：
S500, risk management layer is determined；
S600, risk management target is formulated；
S700, risk management contents are formulated；
S800, it checks simultaneously whether hard objectives risk solves and release, if not releasing, reappraises simultaneously managing risk mesh
Mark.
Further, the risk management layer in the step S500 includes：
Owner's layer：First manager, responsible person, risk management functional department and the relevant departments for being responsible for risk management；
Subject of implementation layer：Designing unit, unit in charge of construction, supervisor etc., each subject of implementation should establish risk management respectively
Group.
Further, the step of risk management target is formulated in the step S600 is as follows：
S601, by the way that risk analysis and preliminary assessment, ratio is selected into row line and tunnel multi-scheme, propose that each scheme exists
Risk, specify risk class, be fabricated to Risk Assessment Report；
S602, evade material risk, prevent smaller risk, reduce the preliminary measure of risk, the decision for that can study provides
Foundation.
Further, the step of risk management contents are formulated in the step S700 is as follows：
S701, owner's layer first examine unit mass guarantee system and counting accountability at different levels；
S702, designing unit are according to risk assessment and management on last stage as a result, real-time update risk information and risk
The corresponding control measure of target, the risk management specific implementation mode and detailed rules and regulations in this stage are write in design, to cope at any time i.e.
By the risk situation of arrival；
S702, risk management report is write, and indicates the various points for attention proposed in risk management.
The prior art is compared, the beneficial effects of the invention are as follows：
(1) efficiency coefficient method of the present invention can easily calculate total efficiency coefficient value, can determine whether according to risk assessment hierarchical table
With the risk class for determining target, and provided with " red, orange, yellow, green " etc. " four color alerts ", be more advantageous to corresponding risk into
The hand-manipulating of needle is to operation, to evade risk；
(2) general power Y-factor method Y of the invention calculates power value-at-risk and is easily understood, and calculating process is simple, can be easily quick
Ground obtains the risk class of monitoring objective, and to make, administrative staff formulate scheme of controlling risk faster, more in time and solution is asked
The measure of topic, to which the risk of constructing tunnel and loss are reduced to minimum；
(3) Each performs its own functions with designing unit for owner's layer, and the division of labor is clear, and cooperating with each other makes the management process Jing Jing of risk have
Item greatly can control risk factors or be solved to dynamics, and ensure the stability of construction safety and construction progress, and manage
Reason personnel carry out quadratic risk function assessment to risk target, to by remaining risk control to tolerance interval, greatly protect
The safety for having hindered construction personnel has ensured construction speed and construction property safety.
Description of the drawings
Fig. 1 is the risk assessment of the present invention and the flow diagram of management method.
Figure label：
1- quadrupods；2- semicircles are open；3- shaft mounting plates；4- limit rotary shaft columns；5- limiting slots；The single ladders of 6-；7-
Idler wheel；8- brake plates；9- pneumatic cylinders；10- piston rods；11- regulates and controls plate；12- limiting plates；13- hemispherical hollow caps；
301- fixed mounting plates；302- movable installation boards；303- inserted blocks；304- slots；305- hinges；401- spindle posts；
402- rotates jack-post；403- gangboard mounting grooves.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of tunnels and underground engineering risk assessment and management method, a kind of tunnel and
Underground engineering methods of risk assessment, includes the following steps：
S100, risk target and monitoring index content, a certain area inside risk target, that is, tunnel or underground engineering are determined
The need detection region in domain and object are set up panel of expert and are investigated risk target, preferably carry out profession using multiple experts
Property detection, obtain the survey data of risk target, after the survey data got, first integrate the data of all experts,
Cast out and differ maximum two data with median, is then averaged, the average value obtained in this way is more convincing, wind
The result nearly assessed is also just relatively reliable.
Monitoring index content in the step S100 includes mainly：Vault (earth's surface) sedimentation, perimeter convergence, underground water,
Face observation, supporting construction observation etc..
The judgment method of vault (earth's surface)：Vault (earth's surface) sedimentation value is compared with monitoring criteria value, and to vault
(earth's surface) settling data is further processed, and can obtain vault (earth's surface) rate of settling, if sedimentation value is more than monitoring criteria value,
Then using the rate of settling as leading indicator.
It need to remark additionally, the scoring criterion of every monitoring index content is as follows：
(1) ground settlement satisfactory value XhiFor 30mm, not permissible value XsiFor 100mm, and the satisfactory value X of ground settlement ratehiFor
0.2mm/d, not permissible value XsiFor 5mm/d；
(2) judgement of perimeter convergence is similar to the sedimentation of vault, the satisfactory value X of perimeter convergencehiFor 16mm, not permissible value
XsiFor 80mm, the satisfactory value X of perimeter convergence ratehiFor 0.2mm/d, not permissible value XsiFor 5mm/d；
(3) according to underground water, there are the case where volume to give a mark, and is divided into anhydrous (100 points), infiltration (70 points), water clock
(40 points) shove (20 points), spray (0 point)；
(4) evaluation index of face is determined by expert estimation, is divided into five kinds of situations according to the degree of stability of face, is beaten
Divide situation as follows：Excellent stability (100 points), stability good (75 points), stability general (50 points), stability poor (25 points) and
Stability is very poor (0 point)；
(5) free from flaw (100 points), a little crack (75 points), small area are divided into according to the variation degree of Tunnel
Five kinds of situations such as (0 point) that cracking (50 points), supporting wall peel off (25 points), supporting is caved in.
(5) the satisfactory value X of underground water, face and supporting constructionhiIt is 100 points, not permissible value XsiIt is 0 point.
S200, the data of investigation are handled, obtains a series of set of research and appraisal indexs, the evaluation index of investigation
Actual value (X including evaluation index1, X2... Xi... Xn), i.e., the marking numerical value that expert carries out according to the actual result of investigation.
And expert can obtain the not permissible value (X of evaluation index according to standard as defined in data or national projects1, Xs2... Xsi... Xsn)
With the satisfactory value (X of evaluation indexh1, Xh2... Xhi... Xhn), facilitate the calculating of follow-up efficiency coefficient value.
The method of processing survey data in the step S200 is as follows：
A satisfactory value and not permissible value first are determined to each single item risk target, obtain the satisfactory value of evaluation index：Xhi(i
=1,2 ..., n) and evaluation goal not permissible value Xsi(i=1,2 ..., n), XhiAnd XsiRespectively i-th evaluation index
The not permissible value of satisfactory value and i-th of evaluation index；
Then expert gives a mark to the factual survey result of every risk target, obtains the actual value of evaluation index：Xi
(i=1,2 ..., n), Xi are the actual value of i-th of evaluation index.
Methods of risk assessment in the step S300 is " efficiency coefficient method ", obtains the computational methods of efficiency coefficient value such as
Under：
S300, the effect of determining methods of risk assessment, being calculated according to appraisal procedure and assess risk target coefficient value；
S301, the effect of a evaluation index coefficient value is calculated：
diFor i-th of evaluation index the effect of coefficient value；
After S302, expert score to every risk target, normalized weight is obtained using analytic hierarchy process (AHP), utilize with
Lower formula calculates normalized weight coefficient：
PiAnd wiThe normalized weight coefficient of the flexible strategy and i-th of evaluation index of respectively i-th evaluation index；
S303, the general power coefficient value according to the result Calculation Estimation object of two above formula:
D is general power coefficient value.
S400, calculated total efficiency coefficient value is classified by rule, management and prevention so as to administrative staff to risk.
Preferably, risk factor calculation formula is easily understood, and calculating process is not cumbersome, is obtained to risk evaluation result
Provide a convenient, risk factor made quickly to obtain, to enable administrative staff faster, control tunnel and underground work more in time
Risk in journey, and specify corresponding measure in time and implement to solve safety problem and risk in construction, it is construction personnel
Good, safety a construction environment is provided with neighbouring resident, has evaded risk, has reduced the security risk of construction, reduced
The loss of engineering property.
Total efficiency coefficient value criteria for classification in the step S400 is as follows：
(1) for total efficiency coefficient value within the scope of 60-70, risk class is evaluated as highest, at this moment using red instruction, in advance
Alert rank is emergency alarm；
(2) total efficiency coefficient value is within the scope of 70-80, and risk class is evaluated as medium, at this moment uses orange instruction, in advance
Alert rank is moderate alarm；
(3) total efficiency coefficient value is within the scope of 80-90, and risk class is evaluated as relatively low, at this moment yellow is used to indicate, in advance
Alert rank is slight alarm；
(4) for total efficiency coefficient value within the scope of 90-100, risk class is evaluated as minimum, at this moment use green instruction,
Warning level is no alarm.
To the observation of risk class and corresponding measure is worked out for convenience of appraiser, facilitates administrative staff and appraiser
It is as follows to have made risk assessment hierarchical table for the conclusion for compareing and obtaining risk class size：
| Total work rate coefficient D | Risk class | Early warning color indicates | Warning level or degree |
| 60-70 | Highest | It is red | Emergency alarm |
| 70-80 | It is medium | Orange | Moderate is alarmed |
| 80-90 | It is relatively low | It is yellow | Slight alarm |
| 90-100 | It is minimum | It is green | Without alarm |
After monitoring and evaluating tunnel and the risk factor and risk class of underground engineering, need to corresponding risk target
It is controlled, risk factors is avoided to cause the loss of larger security risk and property.
Preferably, after easily calculating total efficiency coefficient value according to efficiency coefficient method, according to risk assessment hierarchical table
Judge and determine the risk class of target, and provided with " four color alerts " such as " red, orange, yellow, green ", is more advantageous to corresponding wind
Danger is carried out for operation, to evade risk.
When the risk class of risk assessment prediction slight alarm and it is following when, that is, yellow, green alert when, can press
Former scheme construction, but the moment is wanted to detect the variation of slight alarm region in constructing, one have the case where Alert Level rising immediately on
Report and determining Managed Solution；
When the risk class that risk assessment goes out is middle rank or highest, illustrate that tunnel landform deforms big, risk factor
At this moment height should be reinforced monitoring and observing dynamics, in time, correctly adjust arrangement and method for construction, and controlled accordingly to risk target
System, takes appropriate measures, prevents the generation of large deformation disaster.
A kind of management method of tunnels and underground engineering risk, includes the following steps：
S500, risk management layer is determined, the personnel of the participation tunnel risk management in risk management layer are pre-job necessary
Training is participated in, the compromise of risk control status, the solution of security risk, property loss minimum is understood and learn how to formulate
Scheme etc..Risk management layer in the step S500 includes：
Owner's layer：First manager, responsible person, risk management functional department and the relevant departments for being responsible for risk management, industry
Main layer can also invite expert group to carry out assistance management if necessary, to keep risk control relatively reliable, more professional.It is real
Apply body layer：Designing unit, unit in charge of construction, supervisor etc., each subject of implementation should establish risk management group respectively.
S600, the step of formulating risk management target, risk management target is formulated in the step S600 is as follows：
S601, by risk analysis and preliminary assessment, ratio being selected into row line and tunnel multi-scheme, to avoid in risk
Big region carries out the construction of tunnels and underground engineering, avoids possible property loss and safety problem, proposes that each scheme is deposited
Risk, specify risk class, be fabricated to Risk Assessment Report.
S602, evade material risk, can be realized by explosion or modification arrangement and method for construction or route, prevent smaller risk, it will
Risk control reduces the preliminary measure of risk, the decision for that can study provides foundation in the acceptable range of minimum.
S700, the step of formulating risk management contents, risk management contents are formulated in the step S700 is as follows：
S701, owner's layer first examine unit mass guarantee system and counting accountability at different levels, to ensure to construct
The safety of quality, stability, ensure the safety of construction equipment, the reasonability of equipment placement location and apply under high temperature environment
The safety prevention measure of work, to reducing risk as much as possible, reducing the security risk of construction and reducing the property of construction
Loss.
S702, designing unit are according to risk assessment and management on last stage as a result, real-time update risk information and risk
The corresponding control measure of target, the risk management specific implementation mode and detailed rules and regulations in this stage are write in design, to cope at any time i.e.
By the risk situation of arrival, after risk management embodiment and detailed rules and regulations make, operating personnel's implement general plan control should be allowed in time
System and issue-resolution, to reduce or thoroughly solve security risk and greater risk.
S702, risk management report is write, and indicates the various points for attention proposed in risk management.
Each performs its own functions with designing unit for owner's layer, and the division of labor is clear, and cooperating with each other keeps the management process of risk in perfect order, energy
Very big dynamics risk factors are controlled or are solved, have ensured the stability of construction safety and construction progress.
S800, it after implementing corresponding risk control operation, checks and whether hard objectives risk solves and release, that is, carry out
Quadratic risk function is assessed, and judges risk whether in tolerance interval, if residual risk is larger, reappraises simultaneously managing risk mesh
Mark, finishes when the residual risk in risk target no longer threatens to engineering or worker.This process continues to
The construction stage of tunnel or underground engineering terminates, and ensures the safety of construction personnel and resident.After the completion of later stage Tunnel Engineering, need
Periodic maintenance is carried out to tunnel and detects its stability, safety.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (9)
1. a kind of tunnels and underground engineering methods of risk assessment, it is characterised in that：Include the following steps：
S100, risk target and monitoring index content are determined, sets up panel of expert and risk target is investigated, obtains risk mesh
Target survey data；
S200, the data of investigation are handled, obtains a series of set of research and appraisal indexs；
S300, the effect of determining methods of risk assessment, being calculated according to appraisal procedure and assess risk target coefficient value；
S400, calculated total efficiency coefficient value is classified by rule, management and prevention so as to administrative staff to risk.
2. a kind of tunnels and underground engineering methods of risk assessment according to claim 1, it is characterised in that：The step
Monitoring index content in S100 includes mainly：Vault (earth's surface) sedimentation, perimeter convergence, underground water, face observation, supporting knot
Structure observation etc..
3. a kind of tunnels and underground engineering methods of risk assessment according to claim 1, it is characterised in that：The step
The method of processing survey data in S200 is as follows：
A satisfactory value and not permissible value first are determined to each single item risk target, obtain the satisfactory value of evaluation index：Xhi(i=1,
2 ..., n) and evaluation goal not permissible value Xsi(i=1,2 ..., n), XhiAnd XsiThe satisfaction of respectively i-th evaluation index
The not permissible value of value and i-th of evaluation index；
Then expert gives a mark to the factual survey result of every risk target, obtains the actual value of evaluation index：Xi(i=1,
2 ..., n), Xi is the actual value of i-th of evaluation index.
4. a kind of tunnels and underground engineering methods of risk assessment according to claim 1, it is characterised in that：The step
Methods of risk assessment in S300 is " efficiency coefficient method ", show that the computational methods of efficiency coefficient value are as follows：
S301, the effect of a evaluation index coefficient value is calculated：
diFor i-th of evaluation index the effect of coefficient value；
After S302, expert score to every risk target, normalized weight is obtained using analytic hierarchy process (AHP), utilizes following public affairs
Formula calculates normalized weight coefficient：
PiAnd wiThe normalized weight coefficient of the flexible strategy and i-th of evaluation index of respectively i-th evaluation index；
S303, the general power coefficient value according to the result Calculation Estimation object of two above formula:
D is general power coefficient value.
5. a kind of tunnels and underground engineering methods of risk assessment according to claim 1, it is characterised in that：The step
Total efficiency coefficient value criteria for classification in S400 is as follows：
(1) for total efficiency coefficient value within the scope of 60-70, risk class is evaluated as highest, at this moment using red instruction, early warning grade
It Wei not emergency alarm；
(2) total efficiency coefficient value is within the scope of 70-80, and risk class is evaluated as medium, at this moment uses orange instruction, early warning grade
It Wei not moderate alarm；
(3) total efficiency coefficient value is within the scope of 80-90, and risk class is evaluated as relatively low, at this moment yellow is used to indicate, early warning grade
It Wei not slight alarm；
(4) for total efficiency coefficient value within the scope of 90-100, risk class is evaluated as minimum, at this moment use green instruction, early warning
Rank is no alarm.
6. a kind of management method of tunnels and underground engineering risk, it is characterised in that：Include the following steps：
S500, risk management layer is determined；
S600, risk management target is formulated；
S700, risk management contents are formulated；
S800, it checks simultaneously whether hard objectives risk solves and release, if not releasing, reappraises simultaneously managing risk target.
7. a kind of management method of tunnels and underground engineering risk according to claim 6, it is characterised in that：The step
Risk management layer in S500 includes：
Owner's layer：First manager, responsible person, risk management functional department and the relevant departments for being responsible for risk management；
Subject of implementation layer：Designing unit, unit in charge of construction, supervisor etc., each subject of implementation should establish risk management group respectively.
8. a kind of management method of tunnels and underground engineering risk according to claim 6, it is characterised in that：The step
The step of risk management target is formulated in S600 is as follows：
S601, by risk analysis and preliminary assessment, selecting ratio into row line and tunnel multi-scheme, proposing wind existing for each scheme
Danger, specifies risk class, is fabricated to Risk Assessment Report；
S602, evade material risk, prevent smaller risk, reduce the preliminary measure of risk, the decision for that can study provides foundation.
9. a kind of management method of tunnels and underground engineering risk according to claim 6, it is characterised in that：The step
The step of risk management contents are formulated in S700 is as follows：
S701, owner's layer first examine unit mass guarantee system and counting accountability at different levels；
S702, designing unit are according to risk assessment and management on last stage as a result, real-time update risk information and risk target
Corresponding control measure, design are write the risk management specific implementation mode and detailed rules and regulations in this stage, will be arrived with coping at any time
The risk situation come；
S702, risk management report is write, and indicates the various points for attention proposed in risk management.
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| CN113837664A (en) * | 2021-11-03 | 2021-12-24 | 天津电力工程监理有限公司 | Project risk analysis system |
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| CN104133985A (en) * | 2014-07-02 | 2014-11-05 | 山东大学 | Evaluation method of geological disaster risk attribute interval of tunnel and underground construction |
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