CN117552793A - Quantitative evaluation method, system and terminal for shield cutter head abrasion state - Google Patents
Quantitative evaluation method, system and terminal for shield cutter head abrasion state Download PDFInfo
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- CN117552793A CN117552793A CN202410041164.2A CN202410041164A CN117552793A CN 117552793 A CN117552793 A CN 117552793A CN 202410041164 A CN202410041164 A CN 202410041164A CN 117552793 A CN117552793 A CN 117552793A
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- 238000005299 abrasion Methods 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000011158 quantitative evaluation Methods 0.000 title claims abstract description 19
- 230000005641 tunneling Effects 0.000 claims abstract description 136
- 230000036541 health Effects 0.000 claims abstract description 76
- 238000009434 installation Methods 0.000 claims abstract description 29
- 230000008569 process Effects 0.000 claims abstract description 20
- 238000012545 processing Methods 0.000 claims abstract description 14
- 238000004364 calculation method Methods 0.000 claims description 10
- 230000011218 segmentation Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 16
- 239000011435 rock Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004836 empirical method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a quantitative evaluation method, a quantitative evaluation system and a quantitative evaluation terminal for the abrasion state of a shield cutter head, wherein a shield tunneling section is segmented according to geological condition indexes; calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine by combining the shield tunneling parameters; recording the accumulated radial abrasion loss of each hob in the tunneling section; determining the abrasion coefficient of each hob in a tunneling section; according to the wear coefficient and the actual cutting distance, calculating to obtain the real-time wear amount of each hob; processing the real-time abrasion loss of each hob, and calculating the equivalent abrasion loss of each hob at each installation position on the cutterhead; converting the equivalent wear amount to obtain hob health factors of each hob; and calculating the cutter health index of the whole cutter according to the health factors of the cutters so as to determine the abrasion state and the treatment measures of the cutter. The invention evaluates the whole abrasion state of the cutterhead in the tunneling section in real time, can effectively reduce the times of opening the cabin to inspect and maintain the cutterhead and the cutter during construction, and ensures the construction efficiency.
Description
Technical Field
The invention relates to the technical field of shield cutter wear evaluation, in particular to a quantitative evaluation method, a quantitative evaluation system and a quantitative evaluation terminal for a shield cutter wear state.
Background
The shield method has the advantages of rapid excavation, small disturbance and the like, and is widely applied to urban subway tunnel construction in recent years. The hob is used as a most commonly used tool for rock breaking and tunneling of the shield machine and is arranged on a cutter head of the shield machine, and the hob is continuously worn by acting force between a face and the shield machine in the forward tunneling process of the shield machine. When the abrasion loss of the hob approaches to the maximum allowable abrasion, the machine is stopped for opening the bin to repair and replace the cutter in order to ensure the safety and the tunneling efficiency of the shield machine.
At present, when the tool is overhauled on a construction site, the tool is mainly manually moved into an excavation cabin to implement the operation, the process is very time-consuming and is accompanied by a certain safety risk, for example, when the tool is overhauled in a poor stratum section, the pressure of a soil bin is required to be increased to maintain the stability of a working face, so that the operation condition is bad, and the tool changing efficiency is further reduced. And the long-time shutdown has adverse effects on the posture of the shield machine. Therefore, in the actual construction process, if unnecessary open-cabin maintenance times can be reduced, reasonable open-cabin maintenance time is selected, and the method has important significance in effectively improving the construction efficiency and safety of the shield tunnel and reducing the construction cost. The key point of accurately selecting reasonable opening timing is that quantitative evaluation of the wear state of the cutterhead can be realized.
At present, an empirical method is mainly used for evaluating the abrasion state of the cutterhead, and a shield driver judges the abrasion state of the cutterhead according to experience, so that unnecessary shutdown is often caused, the construction efficiency is delayed, or the safety of equipment is seriously damaged due to missing of a cutter changing time; in the on-line detection method, the abrasion state of the cutter head is reflected by using sensor equipment such as electromagnetic signals, pressure detection and the like, for example, the actual rotating speed of the cutter head is obtained through a triaxial magnetic field sensor or an acceleration sensor arranged on the intelligent hob, the difference between the actual rotating speed of the hob and the minimum value of the theoretical rotating speed is calculated as the rotating speed difference, and finally the abrasion amount of the hob is determined according to the relation between the rotating speed difference and the abrasion amount. However, due to too many interference factors in the tunneling process, the actual effect is not obvious, and the tunneling process cannot be popularized and used due to higher cost.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
The invention mainly aims to provide a quantitative evaluation method, a quantitative evaluation system, a quantitative evaluation terminal and a computer readable storage medium for the wear state of a shield cutter head, and aims to solve the problems that in the prior art, the cost for evaluating the wear state of the cutter head is high, the wear state of the shield cutter head cannot be accurately evaluated, reasonable open-cabin maintenance time cannot be selected, and the safety and tunneling efficiency of shield machine equipment are affected.
In order to achieve the above object, the present invention provides a method for quantitatively evaluating the wear state of a shield cutter head, the method for quantitatively evaluating the wear state of the shield cutter head comprising the steps of:
obtaining geological condition indexes, and segmenting a shield tunneling section according to the geological condition indexes to obtain a plurality of segments of tunneling sections;
calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters;
recording the accumulated radial abrasion loss of each hob in the tunneling section;
determining the abrasion coefficient of each hob in the tunneling section;
according to the abrasion coefficient and the actual cutting distance of each hob, calculating to obtain the real-time abrasion loss of each hob;
processing the real-time abrasion loss of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent abrasion loss of each hob at each installation position on the cutterhead;
converting the equivalent wear amount of each hob to obtain hob health factors of each hob;
calculating to obtain the cutter health index of the whole cutter according to the health factors of the cutters, and determining the abrasion state of the cutter and corresponding treatment measures according to the cutter health index.
Optionally, in the method for quantitatively evaluating the wear state of the shield cutter head, the calculating the actual cutting distance of each hob on the cutter head in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters specifically includes:
；
wherein,is the (th) of the cutter head>The actual cutting distance of the hob when the shield machine is driven into a ring, < >>Is->Hob hobIs>The width of the shield segment is>Average tunneling speed for tunneling a ring of the shield machine, < >>The average rotating speed of a cutterhead for driving a ring of the shield machine.
Optionally, the method for quantitatively evaluating the wear state of the shield cutter head, wherein the determining the wear coefficient of each hob in the tunneling section specifically includes:
；
；
wherein,is the (th) of the cutter head>The wear coefficient of the hob in the tunneling section, < >>Is->Accumulated radial abrasion loss of hob in tunneling section, < > of hob>Is->Accumulating cutting length of hob in tunneling section, < > of hob>Is->Tunneling hob in shield tunneling machine>Actual cutting length at ring.
Optionally, the method for quantitatively evaluating the wear state of the shield cutter head, wherein the calculating to obtain the real-time wear amount of each hob according to the wear coefficient and the actual cutting distance of each hob specifically includes:
；
wherein,is->Tunneling hob at%>Real-time wear amount at the ring.
Optionally, in the method for quantitatively evaluating the wear state of the shield cutter, the real-time wear amount of each hob is processed to eliminate the influence of the installation radius, and the equivalent wear amount of each hob at each installation position on the cutter is calculated, which specifically includes:
；
；
wherein,is->Handle rollerKnife position mounting coefficient of knife, < >>Is the diameter of the shield machine>To eliminate the influence of the installation radius>The hob is driven to the%>Equivalent wear amount at ring.
Optionally, the method for quantitatively evaluating the wear state of the shield cutter head includes the steps of converting equivalent wear amounts of all the hob to obtain hob health factors of all the hob, and specifically includes:
；
wherein,is->Tunneling hob into the first part>Hob health factor during ring->The maximum allowable abrasion loss of the hob is obtained.
Optionally, the method for quantitatively evaluating the wear state of the shield cutter disc, wherein the calculating to obtain the cutter disc health index of the whole cutter disc according to the health factors of the hobs specifically includes:
；
wherein,tunneling the shield machine to the first->Health index of cutterhead during ring time, +.>The health index of the cutterhead is used for reflecting the tunneling of the cutterhead to the +.>The wear state of the cutterhead of the ring.
In addition, in order to achieve the above object, the present invention further provides a system for quantitatively evaluating a wear state of a shield cutter, wherein the system for quantitatively evaluating a wear state of a shield cutter includes:
the tunneling section segmentation module is used for acquiring geological condition indexes, segmenting the shield tunneling section according to the geological condition indexes, and obtaining a plurality of segments of tunneling sections;
the cutting distance calculation module is used for calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters;
the radial abrasion loss recording module is used for recording the accumulated radial abrasion loss of each hob in the tunneling section;
the abrasion coefficient determining module is used for determining the abrasion coefficient of each hob in the tunneling section;
the real-time abrasion loss calculation module is used for calculating the real-time abrasion loss of each hob according to the abrasion coefficient and the actual cutting distance of each hob;
the equivalent wear amount calculating module is used for processing the real-time wear amount of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent wear amount of each hob at each installation position on the cutterhead;
the hob health factor calculation module is used for converting the equivalent abrasion loss of each hob to obtain hob health factors of each hob;
the cutter head health index determining module is used for calculating the cutter head health index of the whole cutter head according to the hob health factors of the hob, and determining the abrasion state of the cutter head and corresponding treatment measures according to the cutter head health index.
In addition, to achieve the above object, the present invention also provides a terminal, wherein the terminal includes: the method comprises the steps of a memory, a processor and a quantitative evaluation program of the shield cutter wear state, wherein the quantitative evaluation program of the shield cutter wear state is stored in the memory and can run on the processor, and the quantitative evaluation program of the shield cutter wear state is executed by the processor to realize the quantitative evaluation method of the shield cutter wear state.
In addition, in order to achieve the above object, the present invention further provides a computer readable storage medium, wherein the computer readable storage medium stores a quantitative evaluation program of the wear state of the shield cutter, and the quantitative evaluation program of the wear state of the shield cutter realizes the steps of the quantitative evaluation method of the wear state of the shield cutter as described above when being executed by a processor.
According to the method, geological condition indexes are obtained, and shield tunneling sections are segmented according to the geological condition indexes to obtain a multi-section tunneling section; calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters; recording the accumulated radial abrasion loss of each hob in the tunneling section; determining the abrasion coefficient of each hob in the tunneling section; according to the abrasion coefficient and the actual cutting distance of each hob, calculating to obtain the real-time abrasion loss of each hob; processing the real-time abrasion loss of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent abrasion loss of each hob at each installation position on the cutterhead; converting the equivalent wear amount of each hob to obtain hob health factors of each hob; calculating to obtain the cutter health index of the whole cutter according to the health factors of the cutters, and determining the abrasion state of the cutter and corresponding treatment measures according to the cutter health index. According to the method, the cutter head health index is used as an evaluation index of the abrasion state of the shield cutter head, the equivalent abrasion amount is used as a bridge, the abrasion state of the cutter head and the shield tunneling parameters are mutually corresponding, the purpose of quantitatively and real-timely evaluating the abrasion state of the shield cutter head can be achieved, the whole abrasion state of the cutter head in the tunneling section can be evaluated in real time, the times of opening a cabin to inspect and maintain the cutter head during construction can be effectively reduced, and the construction efficiency is ensured.
Drawings
FIG. 1 is a flow chart of a preferred embodiment of a method for quantitatively evaluating the wear state of a shield cutter head according to the present invention;
FIG. 2 is a schematic diagram of a shield machine cutterhead in a preferred embodiment of a method for quantitatively evaluating the wear state of a shield cutterhead of the present invention;
FIG. 3 is a schematic diagram showing the health index of the cutterhead as a function of the number of tunneling rings in a preferred embodiment of the method for quantitatively evaluating the wear state of the cutterhead of the shield of the present invention;
FIG. 4 is a block diagram of a preferred embodiment of a system for quantitatively evaluating the wear condition of a shield cutter head according to the present invention;
fig. 5 is a block diagram of a preferred embodiment of the terminal of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear and clear, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The method for quantitatively evaluating the wear state of the shield cutter according to the preferred embodiment of the present invention, as shown in fig. 1, comprises the following steps:
and S10, acquiring geological condition indexes, and segmenting the shield tunneling section according to the geological condition indexes to obtain a multi-segment tunneling section.
Specifically, the more detailed the classification and classification of each segment index, the higher the accuracy of the equivalent wear amount calculation of the invention, and the more accurate the cutter disc wear state evaluation; the geological condition index includes stratum rock strength (UCS, unconfined Compressive Strength), rock abrasiveness index (CAI, cerchar Abrasivity Index) and rock integrity coefficient (K) v ). Ground when the shield tunneling section is segmentedRock strength (UCS), rock abrasiveness index (CAI), and rock integrity coefficient (K) v ) As a segmentation criterion.
For example, UCS can be generally classified into 6 grades according to formation rock strength, from the weakest weak sandstone to the strongest hard rock, respectively: weak sandstone, medium sandstone, hard sandstone, medium rock, hard rock, and very hard rock.
For example, the rock abrasiveness index CAI (i.e., the abrasion coefficient) is classified into:
for example, the formation integrity factor Kv (i.e., rock integrity factor) is divided into:
and step S20, calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters.
Specifically, according to the tunneling section and the shield tunneling parameters (the shield tunneling parameters refer to the installation radius of the hob, the width of the shield segment, the average tunneling speed of the shield tunneling one ring, and the average rotational speed of the cutterhead of the shield tunneling one ring), calculating the actual cutting distance (taking the tunneling one ring as an example) of each hob on the cutterhead in the tunneling process of the shield tunneling machine, specifically including:
；
wherein,is the (th) of the cutter head>The actual cutting distance of the hob when the shield machine is driven into a ring, < >>Is->Mounting radius of hob->The width of the shield segment is>Average tunneling speed for tunneling a ring of the shield machine, < >>The average rotating speed of a cutterhead for driving a ring of the shield machine.
And step S30, recording the accumulated radial abrasion loss of each hob in the tunneling section.
Specifically, the accumulated radial abrasion loss of each hob in the tunneling section is recorded as the radial abrasion loss from the start of the tunneling section to the detection of the opening of the cabin at each installation position.
And S40, determining the abrasion coefficient of each hob in the tunneling section.
Specifically, the determining the wear coefficient of each hob in the tunneling section specifically includes:
；
；
wherein,is the (th) of the cutter head>The wear coefficient of the hob in the tunneling section, < >>Is->Accumulated radial abrasion loss of hob in tunneling section, < > of hob>Is->Accumulating cutting length of hob in tunneling section, < > of hob>Is->Tunneling hob in shield tunneling machine>Actual cutting length at ring.
And S50, calculating the real-time abrasion loss of each hob according to the abrasion coefficient and the actual cutting distance of each hob.
Specifically, the calculating, according to the wear coefficient and the actual cutting distance of each hob, the real-time wear amount (such as tunneling a ring) of each hob specifically includes:
；
wherein,is->Tunneling hob at%>Real-time wear amount at the ring.
And step S60, processing the real-time abrasion loss of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent abrasion loss of each hob at each installation position on the cutterhead.
Specifically, the processing the real-time wear amount of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent wear amount of each hob at each installation position on the cutterhead specifically includes:
；
；
wherein,is->Mounting coefficient of cutter position of hob +.>Is the diameter of the shield machine>To eliminate the influence of the installation radius>The hob is driven to the%>Equivalent wear amount at ring.
And step S70, converting the equivalent wear amount of each hob to obtain hob health factors of each hob.
Specifically, the conversion of the equivalent wear amount of each hob to obtain the hob health factor of each hob specifically includes:
；
wherein,is->Tunneling hob into the first part>Hob health factor during ring->The maximum allowable abrasion loss of the hob is obtained.
And S80, calculating to obtain a cutter health index of the whole cutter according to the health factors of the cutters, and determining the abrasion state of the cutter and corresponding treatment measures according to the cutter health index.
Specifically, the calculating to obtain the cutter health index of the whole cutter according to the health factors of the cutters specifically includes:
；
wherein,tunneling the shield machine to the first->Health index of cutterhead during ring time, +.>The health index of the cutterhead is used for reflecting the tunneling of the cutterhead to the +.>And judging whether to stop and open the bin according to the set standard by the abrasion state of the cutterhead of the ring.
For example, the cutterhead health index χ is divided into four ranges, a first range cutterhead health index, a second range cutterhead health index, a third range cutterhead health index, and a third range cutterhead health index, respectively; the wear state corresponds to four states, namely slight wear, moderate wear, significant wear and dangerous wear; the corresponding measures are divided into four measures, namely stopping and opening the bin, taking into account stopping and opening the bin, stopping and opening the bin and stopping and opening the bin immediately; for example, the first range of cutterhead health index indicates that the wear state is slightly worn, and the corresponding measure is to open the bin without stopping; the health index of the cutterhead in the second range indicates that the abrasion state is medium abrasion, and then the corresponding measure is to consider shutdown and cabin opening; the health index of the cutterhead in the third range indicates that the abrasion state is obvious abrasion, and then the corresponding measure is stopping and opening; the fourth range of cutterhead health index indicates that the wear state is dangerous wear, and then the corresponding measure is to stop immediately and open the bin. The specific corresponding data of the three are as follows:
as shown in FIG. 2, a cutter head configuration diagram of a shield tunneling machine of a certain engineering is shown, wherein a hob 142 handle is configured, the diameters of the hob are 19 inches, and the maximum allowable abrasion loss is 20mm.
According to the method for calculating the equivalent abrasion loss of the hob and the method for calculating the health factor of the hob, the whole health index of the cutterhead of the shield machine is obtained, the whole health index is drawn along with the change condition of tunneling mileage and is shown in fig. 3, the change condition of the health index of the cutterhead when tunneling to each ring can be clearly seen from fig. 3, therefore, the time of opening a cabin and changing the cutter can be accurately determined, the construction efficiency is improved, and the construction safety is ensured.
According to the invention, the cutter head health index is used as an evaluation index of the shield cutter head abrasion state, the equivalent abrasion loss is used as a bridge, and the cutter head abrasion state and the shield tunneling parameters are mutually corresponding, so that the purpose of quantitatively and real-time evaluating the shield cutter head abrasion state can be realized. The invention can evaluate the whole abrasion state of the cutterhead in the tunneling section in real time, effectively reduce the times of opening the cabin to inspect and maintain the cutterhead and the cutter during construction and ensure the construction efficiency and safety.
Further, as shown in fig. 4, based on the above method for quantitatively evaluating the wear state of the shield cutter, the present invention further provides a system for quantitatively evaluating the wear state of the shield cutter, where the system for quantitatively evaluating the wear state of the shield cutter includes:
the tunneling section segmentation module 51 is used for acquiring geological condition indexes, and segmenting a shield tunneling section according to the geological condition indexes to obtain a plurality of segments of tunneling sections;
the cutting distance calculation module 52 is used for calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters;
the radial abrasion loss recording module 53 is used for recording the accumulated radial abrasion loss of each hob in the tunneling section;
the wear coefficient determining module 54 is used for determining the wear coefficient of each hob in the tunneling section;
the real-time abrasion loss calculation module 55 is used for calculating the real-time abrasion loss of each hob according to the abrasion coefficient and the actual cutting distance of each hob;
the equivalent wear amount calculating module 56 is used for processing the real-time wear amount of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent wear amount of each hob at each installation position on the cutterhead;
the hob health factor calculation module 57 is configured to convert an equivalent wear amount of each hob to obtain hob health factors of each hob;
the cutter health index determining module 58 is configured to calculate a cutter health index of the entire cutter according to the hob health factors of each hob, and determine a cutter wear state and corresponding treatment measures according to the cutter health index.
Further, as shown in fig. 5, based on the method and the system for quantitatively evaluating the wear state of the shield cutter, the invention further provides a terminal correspondingly, and the terminal comprises a processor 10, a memory 20 and a display 30. Fig. 5 shows only some of the components of the terminal, but it should be understood that not all of the illustrated components are required to be implemented and that more or fewer components may be implemented instead.
The memory 20 may in some embodiments be an internal storage unit of the terminal, such as a hard disk or a memory of the terminal. The memory 20 may in other embodiments also be an external storage device of the terminal, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the terminal. Further, the memory 20 may also include both an internal storage unit and an external storage device of the terminal. The memory 20 is used for storing application software installed in the terminal and various data, such as program codes of the installation terminal. The memory 20 may also be used to temporarily store data that has been output or is to be output. In an embodiment, the memory 20 stores a quantitative evaluation program 40 of the wear state of the shield cutter, and the quantitative evaluation program 40 of the wear state of the shield cutter may be executed by the processor 10, so as to implement a quantitative evaluation method of the wear state of the shield cutter in the present application.
The processor 10 may in some embodiments be a central processing unit (Central Processing Unit, CPU), microprocessor or other data processing chip for running program code or processing data stored in the memory 20, for example performing a quantitative assessment of the wear state of the shield cutter head, etc.
The display 30 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, or the like in some embodiments. The display 30 is used for displaying information at the terminal and for displaying a visual user interface. The components 10-30 of the terminal communicate with each other via a system bus.
In an embodiment, the steps of the method for quantitatively evaluating the wear state of the shield cutter head as described above are implemented when the processor 10 executes the quantitative evaluation program 40 of the wear state of the shield cutter head in the memory 20.
The invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a quantitative evaluation program of the wear state of the shield cutter head, and the quantitative evaluation program of the wear state of the shield cutter head realizes the steps of the quantitative evaluation method of the wear state of the shield cutter head when being executed by a processor.
In summary, the present invention provides a method, a system, a terminal and a storage medium for quantitatively evaluating a shield cutter wear state, where the method includes: obtaining geological condition indexes, and segmenting a shield tunneling section according to the geological condition indexes to obtain a plurality of segments of tunneling sections; calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters; recording the accumulated radial abrasion loss of each hob in the tunneling section; determining the abrasion coefficient of each hob in the tunneling section; according to the abrasion coefficient and the actual cutting distance of each hob, calculating to obtain the real-time abrasion loss of each hob; processing the real-time abrasion loss of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent abrasion loss of each hob at each installation position on the cutterhead; converting the equivalent wear amount of each hob to obtain hob health factors of each hob; calculating to obtain the cutter health index of the whole cutter according to the health factors of the cutters, and determining the abrasion state of the cutter and corresponding treatment measures according to the cutter health index. According to the method, the cutter head health index is used as an evaluation index of the abrasion state of the shield cutter head, the equivalent abrasion amount is used as a bridge, the abrasion state of the cutter head and the shield tunneling parameters are mutually corresponding, the purpose of quantitatively and real-timely evaluating the abrasion state of the shield cutter head can be achieved, the whole abrasion state of the cutter head in the tunneling section can be evaluated in real time, the times of opening a cabin to inspect and maintain the cutter head during construction can be effectively reduced, and the construction efficiency is ensured.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal comprising the element.
Of course, those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by a computer program for instructing relevant hardware (e.g., processor, controller, etc.), the program may be stored on a computer readable storage medium, and the program may include the above described methods when executed. The computer readable storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (10)
1. The quantitative evaluation method for the shield cutter wear state is characterized by comprising the following steps of:
obtaining geological condition indexes, and segmenting a shield tunneling section according to the geological condition indexes to obtain a plurality of segments of tunneling sections;
calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters;
recording the accumulated radial abrasion loss of each hob in the tunneling section;
determining the abrasion coefficient of each hob in the tunneling section;
according to the abrasion coefficient and the actual cutting distance of each hob, calculating to obtain the real-time abrasion loss of each hob;
processing the real-time abrasion loss of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent abrasion loss of each hob at each installation position on the cutterhead;
converting the equivalent wear amount of each hob to obtain hob health factors of each hob;
calculating to obtain the cutter health index of the whole cutter according to the health factors of the cutters, and determining the abrasion state of the cutter and corresponding treatment measures according to the cutter health index.
2. The method for quantitatively evaluating the wear state of a shield cutter head according to claim 1, wherein the calculating the actual cutting distance of each hob on the cutter head in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters comprises the following steps:
；
wherein,is the (th) of the cutter head>The actual cutting distance of the hob when the shield machine is driven into a ring, < >>Is->Mounting radius of hob->The width of the shield segment is>Average tunneling speed for tunneling a ring of the shield machine, < >>The average rotating speed of a cutterhead for driving a ring of the shield machine.
3. The method for quantitatively evaluating the wear state of the shield cutter head according to claim 2, wherein the determining the wear coefficient of each hob in the tunneling section specifically comprises:
；
；
wherein,is the (th) of the cutter head>The wear coefficient of the hob in the tunneling section, < >>Is->Accumulated radial abrasion loss of hob in tunneling section, < > of hob>Is->Accumulating cutting length of hob in tunneling section, < > of hob>Is->Tunneling hob in shield tunneling machine>Actual cutting length at ring.
4. The method for quantitatively evaluating the wear state of a shield cutter head according to claim 3, wherein the calculating the real-time wear amount of each hob according to the wear coefficient and the actual cutting distance of each hob specifically comprises:
；
wherein,is->Tunneling hob at%>Real-time wear amount at the ring.
5. The method for quantitatively evaluating the wear state of a shield cutter head according to claim 4, wherein the real-time wear amount of each hob is processed to eliminate the influence of the installation radius, and the equivalent wear amount of each hob at each installation position on the cutter head is calculated, specifically comprising:
；
；
wherein,is->Mounting coefficient of cutter position of hob +.>Is the diameter of the shield machine>To eliminate the influence of the installation radius>The hob is driven to the%>Equivalent wear amount at ring.
6. The method for quantitatively evaluating the wear state of a shield cutter head according to claim 5, wherein the converting the equivalent wear amount of each hob to obtain the hob health factor of each hob specifically comprises:
；
wherein,is->Tunneling hob into the first part>Hob health factor during ring->The maximum allowable abrasion loss of the hob is obtained.
7. The method for quantitatively evaluating the wear state of a shield cutter according to claim 6, wherein the calculating the cutter health index of the whole cutter according to the health factors of the hobs specifically comprises:
；
wherein,tunneling the shield machine to the first->Health index of cutterhead during ring time, +.>The health index of the cutterhead is used for reflecting the tunneling of the cutterhead to the +.>The wear state of the cutterhead of the ring.
8. The quantitative evaluation system for the wear state of the shield cutterhead is characterized by comprising the following components:
the tunneling section segmentation module is used for acquiring geological condition indexes, segmenting the shield tunneling section according to the geological condition indexes, and obtaining a plurality of segments of tunneling sections;
the cutting distance calculation module is used for calculating the actual cutting distance of each hob on the cutterhead in the tunneling process of the shield machine according to the tunneling section and the shield tunneling parameters;
the radial abrasion loss recording module is used for recording the accumulated radial abrasion loss of each hob in the tunneling section;
the abrasion coefficient determining module is used for determining the abrasion coefficient of each hob in the tunneling section;
the real-time abrasion loss calculation module is used for calculating the real-time abrasion loss of each hob according to the abrasion coefficient and the actual cutting distance of each hob;
the equivalent wear amount calculating module is used for processing the real-time wear amount of each hob to eliminate the influence of the installation radius, and calculating to obtain the equivalent wear amount of each hob at each installation position on the cutterhead;
the hob health factor calculation module is used for converting the equivalent abrasion loss of each hob to obtain hob health factors of each hob;
the cutter head health index determining module is used for calculating the cutter head health index of the whole cutter head according to the hob health factors of the hob, and determining the abrasion state of the cutter head and corresponding treatment measures according to the cutter head health index.
9. A terminal, the terminal comprising: a memory, a processor and a quantitative assessment program of shield cutter wear state stored on the memory and operable on the processor, which when executed by the processor, implements the steps of the quantitative assessment method of shield cutter wear state of any one of claims 1-7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a quantitative evaluation program of the wear state of a shield cutter, which, when executed by a processor, implements the steps of the quantitative evaluation method of the wear state of a shield cutter according to any one of claims 1 to 7.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117828904A (en) * | 2024-03-05 | 2024-04-05 | 深圳大学 | Cutter disc stress calculation method for ultra-large diameter slurry shield crossing boulder stratum |
| CN117851761A (en) * | 2024-03-08 | 2024-04-09 | 山东天工岩土工程设备有限公司 | Method and system for evaluating states of cutterheads of shield machine |
| CN118273727A (en) * | 2024-06-03 | 2024-07-02 | 中铁十四局集团大盾构工程有限公司 | Shield cutter head cutter operation fault early warning system based on artificial intelligence |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1061384A (en) * | 1996-08-16 | 1998-03-03 | Fujita Corp | Wear diagnosis method of cutter of tunnel excavating equipment |
| CN112160761A (en) * | 2020-09-25 | 2021-01-01 | 上海交通大学 | Hard rock TBM cutter disc hob abrasion real-time evaluation method based on field parameters |
| CN116205064A (en) * | 2023-02-24 | 2023-06-02 | 中建八局轨道交通建设有限公司 | Prediction method for abrasion loss of shield cutter in service period in complex stratum tunnel construction |
| CN117077393A (en) * | 2023-08-14 | 2023-11-17 | 深圳大学 | Prediction method for normal service life of hob |
-
2024
- 2024-01-11 CN CN202410041164.2A patent/CN117552793B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1061384A (en) * | 1996-08-16 | 1998-03-03 | Fujita Corp | Wear diagnosis method of cutter of tunnel excavating equipment |
| CN112160761A (en) * | 2020-09-25 | 2021-01-01 | 上海交通大学 | Hard rock TBM cutter disc hob abrasion real-time evaluation method based on field parameters |
| CN116205064A (en) * | 2023-02-24 | 2023-06-02 | 中建八局轨道交通建设有限公司 | Prediction method for abrasion loss of shield cutter in service period in complex stratum tunnel construction |
| CN117077393A (en) * | 2023-08-14 | 2023-11-17 | 深圳大学 | Prediction method for normal service life of hob |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117828904A (en) * | 2024-03-05 | 2024-04-05 | 深圳大学 | Cutter disc stress calculation method for ultra-large diameter slurry shield crossing boulder stratum |
| CN117828904B (en) * | 2024-03-05 | 2024-05-28 | 深圳大学 | Cutter disc stress calculation method for ultra-large diameter slurry shield crossing boulder stratum |
| CN117851761A (en) * | 2024-03-08 | 2024-04-09 | 山东天工岩土工程设备有限公司 | Method and system for evaluating states of cutterheads of shield machine |
| CN117851761B (en) * | 2024-03-08 | 2024-05-14 | 山东天工岩土工程设备有限公司 | Method and system for evaluating states of cutterheads of shield machine |
| CN118273727A (en) * | 2024-06-03 | 2024-07-02 | 中铁十四局集团大盾构工程有限公司 | Shield cutter head cutter operation fault early warning system based on artificial intelligence |
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