CN108460518B - Method for testing space conflict frequency of dam pouring cross operation - Google Patents
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Abstract
The invention discloses a method for testing space conflict frequency of dam pouring cross operation. During the initial pouring operation of the dam, the danger source process is respectively represented by RFID tags with different electronic codes: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation and the no-load vertical transportation, and the disaster bearing body working procedure: pouring, leveling and vibrating; the method comprises the steps that the influence space of a dangerous source process and the working space of a disaster bearing body process are determined by a GPS, when the spaces are overlapped, RFID tags are identified by a reader arranged around the surface of a pouring bin, a time measuring instrument collects time indexes such as starting time when different RFID tags start to appear, ending time when the same tags all leave, duration time and the like, and therefore the proportion of the total duration of cross operation with space conflict to the total duration of the disaster bearing body is calculated, and a basis is provided for measuring the space conflict in the whole process of dam pouring.
Description
Technical Field
The invention relates to a method for testing space conflict frequency of dam pouring cross operation, which is mainly used for providing a quantitative analysis tool for measuring cross operation space conflict.
Background
The dam pouring process is complex, the management and control difficulty is high, the dam pouring process is particularly limited by a construction process and a construction site, all construction processes are closely connected, a plurality of construction processes are often required to be carried out simultaneously, and a large amount of cross operation is easy to generate.
The cross operation is through in space and overlapped in working range, the same time competition occupies limited space, space conflict is formed, and the higher the occupied frequency is, the longer the time is, the higher the possibility of causing disaster by the space conflict is. The cross operation space conflict increases the intersection probability of construction operation personnel such as leveling bins and vibrating and the motion trail of the concrete transportation machine, and the contact channels of human bodies or equipment and other disaster-bearing bodies and high falling objects and other harmful energy are communicated, so that construction safety accidents such as object striking, high falling objects and the like are easily formed.
The currently used gas operators distinguish the frequency of the space conflict, and the method is too dependent on expert experience, is easily influenced by subjective factors, and cannot accurately quantify the time frequency of the space conflict. Meanwhile, most of the measures for the space conflict of dam pouring cross operation are from the space perspective, the time level is less involved, most of the measures are from the design aspect, the design construction aspect is less, and a feasible method is also lacked.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for testing the space conflict frequency of dam pouring cross operation.
In order to achieve the technical features, the invention is realized as follows: a method for testing space conflict frequency of dam pouring cross operation is characterized by comprising the following steps:
the method comprises the following steps: the danger source process is represented by electronically coded different RFID tags: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: pouring, leveling and vibrating;
step two: determining an influence space of a dangerous source process and a working space of a disaster bearing body process by using a GPS, and collecting the dangerous source process within a period of time when the dam starts pouring construction by using a time measuring instrument: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: pouring, leveling, and vibrating time data of the starting time and the ending time;
step three: analyzing the construction time characteristics of the dangerous source process and the dangerous source process, analyzing and comparing the starting time and the ending time of the dangerous source process and the dangerous source process in the dam construction process, calculating the overlapping time, and judging whether space conflict exists;
step four: with repeated execution of the dangerous source process and the disaster bearing body process, the overlapping time is continuously overlapped, and the total time of the accumulated space conflict of each overlapping time in the construction process is calculated; and reflecting the time frequency of the space conflict of the disaster-bearing body in the influence range of the hazard source according to the proportion of the total time length of the space conflict in the working procedure duration of the disaster-bearing body.
The specific content of the first step is as follows:
each RFID label has a unique electronic code, and the working procedure of the disaster-bearing body is respectively represented as casting V by the RFID labels with different electronic codes1Leveling cabin V2V of vibration3The dangerous source process is the horizontal transportation H of the cable crane load1No-load horizontal transportation H2Vertical transport of loads H3No-load vertical transportation H4。
The specific content of the second step is as follows:
a danger source process: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: constructors or construction machinery in pouring, leveling and vibrating carry corresponding RFID tags and GPS chips; the GPS chip reflects real-time position information of constructors or construction machinery, when the positions of the constructors or the construction machinery are overlapped, the recognizer recognizes a corresponding construction process through the RFID tag, and the time measuring instrument collects the starting time when each data tag begins to appear and the ending time when all the same type of tags leave, namely the starting time S and the ending time F of the represented construction process.
The third step comprises the following specific contents:
the spatial conflict time frequency of the disaster-bearing body in the influence range of the dangerous source is abstracted into a plurality of operation time sections (S) for generating the dangerous source processHF) and the working time period (S) of the disaster-bearing body processV，FV) Dynamic overlapping occurs, with hazard process H therein1And disaster recovery step V1At the first time heavyStacking for example, by extracted hazard Process H1And disaster recovery step V1Calculating the overlapping time length O of two time intervals at the starting time and the ending time of execution in the execution process queuesH 1V1If the overlapping time is 0, no space conflict exists; if the overlapping time is not 0, space conflict exists, and the overlapping time is calculated and recorded;
the weight calculation in the fourth step is specifically as follows:
in the construction process, a dangerous source process H1Working procedure V of disaster-bearing body1The number of times of overlapping is continuously executed and is continuously increased, the first time of overlapping is marked as 1, the number of times of overlapping is added by 1 every time, until the construction process is finished, the total number of times of overlapping is n, and the total time of overlapping is as follows:
in the formula: i represents the overlapping frequency of the danger source process and the disaster bearing body process;
there are 4 hazard processes: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and 3 disaster-bearing body processes: the total time of pouring, leveling and vibrating for overlapping:
in the formula: hl、VkRespectively represent the process steps included in the hazard source process (H)1，H2，…，H4) And disaster tolerance process (V)1，V2，V3) L and k respectively represent the number of the dangerous source process and the disaster bearing body process;
calculating the space conflict time frequency of the possibility that the disaster-bearing body appears in the influence range of the dangerous source process according to the proportion of the space conflict time length ET in the total time length of the disaster-bearing body process:
the invention has the following beneficial effects:
(1) the invention provides a basis for the execution of subsequent procedures based on the condition of cross operation space conflict in the actual construction process from the actual construction angle.
(2) The invention provides a testing method for quantitatively calculating the space conflict frequency of dam pouring cross operation from the time perspective, which provides a scheduling basis for optimization and organization coordination of dam pouring cross operation construction procedures and perfects the arrangement of a construction site.
(3) The invention can collect and transmit information in real time by using the RFID technology, saves cost and greatly improves the accuracy of process information acquisition.
(4) The method has the characteristics of high accuracy, good real-time performance, low cost, simplicity and easiness in use, and therefore, the method has strong feasibility.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is a model of calculating the overlap time length of two time intervals in step three according to the present invention.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
A method for testing space conflict frequency of dam pouring cross operation is characterized by comprising the following steps:
the method comprises the following steps: the danger source process is represented by electronically coded different RFID tags: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: pouring, leveling and vibrating;
step two: determining an influence space of a dangerous source process and a working space of a disaster bearing body process by using a GPS, and collecting the dangerous source process within a period of time when the dam starts pouring construction by using a time measuring instrument: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: pouring, leveling, and vibrating time data of the starting time and the ending time;
step three: analyzing the construction time characteristics of the dangerous source process and the dangerous source process, analyzing and comparing the starting time and the ending time of the dangerous source process and the dangerous source process in the dam construction process, calculating the overlapping time, and judging whether space conflict exists;
step four: with repeated execution of the dangerous source process and the disaster bearing body process, the overlapping time is continuously overlapped, and the total time of the accumulated space conflict of each overlapping time in the construction process is calculated; and reflecting the time frequency of the space conflict of the disaster-bearing body in the influence range of the hazard source according to the proportion of the total time length of the space conflict in the working procedure duration of the disaster-bearing body.
The specific content of the first step is as follows:
each RFID label has a unique electronic code, and the working procedure of the disaster-bearing body is respectively represented as casting V by the RFID labels with different electronic codes1Leveling cabin V2V of vibration3The dangerous source process is the horizontal transportation H of the cable crane load1No-load horizontal transportation H2Vertical transport of loads H3No-load vertical transportation H4。
The specific content of the second step is as follows:
a danger source process: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: constructors or construction machinery in pouring, leveling and vibrating carry corresponding RFID tags and GPS chips; the GPS chip reflects real-time position information of constructors or construction machinery, when the positions of the constructors or the construction machinery are overlapped, the recognizer recognizes a corresponding construction process through the RFID tag, and the time measuring instrument collects the starting time when each data tag begins to appear and the ending time when all the same type of tags leave, namely the starting time S and the ending time F of the represented construction process.
The third step comprises the following specific contents:
the spatial conflict time frequency of the disaster-bearing body in the influence range of the dangerous source is abstracted into a plurality of operation time sections (S) for generating the dangerous source processH，FH) Working time period (S) with disaster-bearing body processV，FV) Dynamic overlapping occurs, with hazard process H therein1And disaster recovery step V1In the first overlapping, for example, the hazard source extracting step H1And disaster recovery step V1Calculating the overlapping time length O of two time intervals at the starting time and the ending time of execution in the execution process queuesH 1V1As shown in fig. 1, if the overlap time is 0, there is no spatial conflict; if the overlapping time is not 0, space conflict exists, and the overlapping time is calculated and recorded;
the weight calculation in the fourth step is specifically as follows:
in the construction process, a dangerous source process H1Working procedure V of disaster-bearing body1The number of times of overlapping is continuously executed and is continuously increased, the first time of overlapping is marked as 1, the number of times of overlapping is added by 1 every time, until the construction process is finished, the total number of times of overlapping is n, and the total time of overlapping is as follows:
in the formula: i represents the overlapping frequency of the danger source process and the disaster bearing body process;
there are 4 hazard processes: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and 3 disaster-bearing body processes: the total time of pouring, leveling and vibrating for overlapping:
in the formula: hl、VkRespectively represent the process steps included in the hazard source process (H)1，H2，…，H4) And disaster tolerance process (V)1，V2，V3) L and k respectively represent the number of the dangerous source process and the disaster bearing body process;
calculating the space conflict time frequency of the possibility that the disaster-bearing body appears in the influence range of the dangerous source process according to the proportion of the space conflict time length ET in the total time length of the disaster-bearing body process:
Claims (5)
1. a method for testing space conflict frequency of dam pouring cross operation is characterized by comprising the following steps:
the method comprises the following steps: the danger source process is represented by electronically coded different RFID tags: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: pouring, leveling and vibrating;
step two: determining an influence space of a dangerous source process and a working space of a disaster bearing body process by using a GPS, and collecting the dangerous source process within a period of time when the dam starts pouring construction by using a time measuring instrument: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: pouring, leveling, and vibrating time data of the starting time and the ending time;
step three: analyzing the construction time characteristics of the dangerous source process and the dangerous source process, analyzing and comparing the starting time and the ending time of the dangerous source process and the dangerous source process in the dam construction process, calculating the overlapping time, and judging whether space conflict exists;
step four: with repeated execution of the dangerous source process and the disaster bearing body process, the overlapping time is continuously overlapped, and the total time of the accumulated space conflict of each overlapping time in the construction process is calculated; and reflecting the time frequency of the space conflict of the disaster-bearing body in the influence range of the hazard source according to the proportion of the total time length of the space conflict in the working procedure duration of the disaster-bearing body.
2. The dam casting cross operation space conflict frequency testing method according to claim 1, characterized in that: the specific content of the first step is as follows:
each RFID label has a unique electronic code, and the working procedure of the disaster-bearing body is respectively represented as casting V by the RFID labels with different electronic codes1Leveling cabin V2V of vibration3The dangerous source process is the horizontal transportation H of the cable crane load1No-load horizontal transportation H2Vertical transport of loads H3No-load vertical transportation H4。
3. The dam casting cross operation space conflict frequency testing method according to claim 1, characterized in that: the specific content of the second step is as follows:
a danger source process: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and the disaster bearing body working procedures are as follows: constructors or construction machinery in pouring, leveling and vibrating carry corresponding RFID tags and GPS chips; the GPS chip reflects real-time position information of constructors or construction machinery, when the positions of the constructors or the construction machinery are overlapped, the recognizer recognizes a corresponding construction process through the RFID tag, and the time measuring instrument collects the starting time when each data tag begins to appear and the ending time when all the same type of tags leave, namely the starting time S and the ending time F of the represented construction process.
4. The dam casting cross operation space conflict frequency testing method according to claim 1, characterized in that: the third step comprises the following specific contents:
the space conflict time frequency of the disaster bearing body in the influence range of the dangerous source is abstracted into a plurality of operations of generating dangerous source processesTime zone (S)H，FH) Working time period (S) with disaster-bearing body processV，FV) Dynamic overlapping occurs, with hazard process H therein1And disaster recovery step V1In the first overlapping, for example, the hazard source extracting step H1And disaster recovery step V1Calculating the length of the overlapping time of the two time sections at the start time and the end time of execution in the execution process queues
If the overlapping time is 0, no space conflict exists; if the overlapping time is not 0, space conflict exists, and the overlapping time is calculated and recorded;
5. the dam casting cross operation space conflict frequency testing method according to claim 1, characterized in that: the weight calculation in the fourth step is specifically as follows:
in the construction process, a dangerous source process H1Working procedure V of disaster-bearing body1The number of times of overlapping is continuously executed and is continuously increased, the first time of overlapping is marked as 1, the number of times of overlapping is added by 1 every time, until the construction process is finished, the total number of times of overlapping is n, and the total time of overlapping is as follows:
in the formula: i represents the overlapping frequency of the danger source process and the disaster bearing body process;
there are 4 hazard processes: the cable crane load horizontal transportation, the no-load horizontal transportation, the load vertical transportation, the no-load vertical transportation and 3 disaster-bearing body processes: the total time of pouring, leveling and vibrating for overlapping:
in the formula: hl、VkRespectively represent the process steps included in the hazard source process (H)1，H2，…，H4) And disaster tolerance process (V)1，V2，V3) L and k respectively represent the number of the dangerous source process and the disaster bearing body process;
calculating the space conflict time frequency of the possibility that the disaster-bearing body appears in the influence range of the dangerous source process according to the proportion of the space conflict time length ET in the total time length of the disaster-bearing body process:
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