Construction pattern verification device, and construction pattern verification method

Abstract

To provide a construction pattern verification device that can generate and verify an appropriate construction pattern for a construction method in which sand piles are constructed underground to compact the ground.SOLUTION: A construction pattern verification device 100 is a verification device that verifies a construction pattern used in a compaction pile construction device that compacts the ground by constructing columnar objects underground. The construction pattern verification device 100 includes a construction information acquisition portion 111 that acquires construction information on construction performed by the compaction pile construction device. The construction pattern verification device 100 also includes a pattern information generation portion 112 that generates a construction pattern based on the construction information. The construction pattern verification device 100 also includes a simulation execution portion 113 that executes a simulation of occurrence probability regarding quality of missing condition of a material forming the columnar object for the construction pattern. Furthermore, the construction pattern verification device 100 includes a calculation result display portion 114 that displays results of the simulation.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a construction pattern verification device and a construction pattern verification method. [Background technology]

[0002] In a conventional method for compacting the surrounding ground by constructing sand piles underground, a casing filled with granular material such as sand or crushed stone is driven to a predetermined depth, and a technique for appropriately discharging the material inside the casing into the ground has been proposed. Patent Document 1 discloses a method for discharging sand in a drive-back type compressed sand pile construction method. The sand discharging method disclosed in Patent Document 1 not only discharges sand by applying air pressure to the sand inside the casing, but also discharges sand efficiently by ejecting an air jet from the side of the tip of the casing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-308839 Summary of the Invention [Problem to be solved by the invention]

[0004] In a method of compacting the ground by constructing sand piles underground, the amount of sand discharged from the casing must be adjusted appropriately depending on the sand material used and the ground conditions. Traditionally, skilled operators have adjusted the construction pattern for the amount of sand discharged by controlling the pressure of the casing and the air jet. Therefore, to implement this method without relying on the skills of a skilled operator, a device is needed that can generate an appropriate construction pattern for the method and verify whether the verification pattern can be used for appropriate construction.

[0005] The present invention has been made in consideration of the problems inherent in the conventional techniques, and an object of the present invention is to provide a construction pattern verification device that can generate and verify an appropriate construction pattern for a construction method in which sand piles are constructed underground to compact the ground. [Means for solving the problem]

[0006] A construction pattern verification device according to an embodiment of the present invention is a construction pattern verification device that verifies a construction pattern used in a compaction pile construction device that compacts the ground by constructing pillar-shaped objects underground, and is equipped with a construction information acquisition unit that acquires construction information constructed by the compaction pile construction device, a pattern information generation unit that generates a construction pattern based on the construction information, a simulation execution unit that executes a simulation of the occurrence probability regarding the quality of the missing material that forms the pillars for the construction pattern, and a calculation result display unit that displays the results of the simulation.

[0007] Another aspect of the present invention is a construction pattern verification method that is executed by a computer and verifies a construction pattern used in a compaction pile construction device that compacts the ground by constructing pillar-shaped objects underground.The method obtains construction information constructed by the compaction pile construction device, generates a construction pattern based on the construction information, performs a simulation of the occurrence probability regarding the quality of the material that forms the pillar-shaped objects for the construction pattern, and displays the results of the simulation. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide a construction pattern verification device that can generate and verify an appropriate construction pattern for a construction method in which sand piles are constructed underground and the ground is compacted. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 10 is a diagram for explaining a compaction method by driving sand piles, which is the subject of verification in the construction pattern verification device according to the present embodiment. [Figure 2]FIG. 1 is a diagram for explaining a compaction method using sand pile installation. [Figure 3] 1 is a block diagram showing a configuration of a construction pattern verification device according to an embodiment of the present invention; [Figure 4] 1 is a block diagram showing a functional configuration of a construction pattern verification device according to an embodiment of the present invention; [Figure 5] 10A and 10B are diagrams for explaining construction information applied to the construction pattern verification device according to the present embodiment. [Figure 6A] 1 is a diagram for explaining an example of a construction pattern applied to the construction pattern verification device according to the present embodiment. FIG. [Figure 6B] 1 is a diagram for explaining an example of a construction pattern applied to the construction pattern verification device according to the present embodiment. FIG. [Figure 7A] 10A and 10B are diagrams for explaining an example of the occurrence probability of an operation applied to the construction pattern verification device according to the present embodiment. [Figure 7B] 10A and 10B are diagrams for explaining an example of the occurrence probability of an operation applied to the construction pattern verification device according to the present embodiment. [Figure 7C] 10A and 10B are diagrams for explaining an example of the occurrence probability of an operation applied to the construction pattern verification device according to the present embodiment. [Figure 8] 10 is a flowchart illustrating an example of processing of the construction pattern verification device according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] The construction pattern verification device 100 according to this embodiment will be described in detail below with reference to the drawings. Note that the dimensional ratios in the drawings are exaggerated for the sake of explanation and may differ from the actual ratios.

[0011] (Compaction method using sand piles) 1 is a diagram for explaining a construction method to be verified by the construction pattern verification device 100 according to this embodiment. The construction method to which the construction pattern verification device 100 according to this embodiment is applied is a construction method in which the ground is compacted by constructing pillar-shaped objects in the ground using a compaction pile construction device 20.

[0012] The method of compacting the ground by constructing pillars underground corresponds to, for example, the sand compaction pile method, sand drain method, or static compaction method, which involves driving back granular material discharged into the ground using a casing to expand the pellets and compact the surrounding ground. The method may also be a press-in static compaction method or compaction grouting method, in which a mixture of granular material with a fluidizing agent and cement is injected into the ground.

[0013] The compaction pile construction device 20 according to this embodiment includes a hopper 30, a lifting device 31, a rotation drive device 32, and a casing pipe 33. The hopper 30 is provided at the upper end of the casing pipe 33 and is a portion for introducing granular material into the casing pipe 33. In this embodiment, the granular material is, for example, sand.

[0014] The lifting device 31 has a lifting motor and a power transmission means for transmitting the rotational force of the lifting motor to the casing pipe 33, and raises and lowers the casing pipe 33 into the ground. The lifting device 31 is also provided with a hydraulic sensor (not shown) for detecting the hydraulic pressure during the lifting and lowering operation of the casing pipe 33. The lifting device 31 is also provided with a depth gauge (not shown) for detecting the depth of the lower end of the casing pipe 33.

[0015] The rotation drive device 32 is equipped with a rotation motor and is a mechanism for rotating the casing pipe 33 in any direction. The rotation drive device 32 is also provided with a current sensor (not shown) that detects the current value of the rotation motor.

[0016] The compaction pile construction device 20 penetrates a casing pipe 33 into the ground to a predetermined depth using a lifting device 31 and a rotary drive device 32. The compaction pile construction device 20 also discharges granular material from the lower end of the casing pipe 33, and compacts the discharged granular material by repeating the process of pulling out and re-penetrating the casing pipe 33. The compaction pile construction device 20 may also be equipped with a device (speedometer) that measures the penetration speed when the casing pipe 33 is penetrated into the ground.

[0017] In the example shown in Figure 1, a casing pipe 33 attached to the compaction pile construction device 20 is driven into the ground to a predetermined depth by a rotary drive device 32, and then finely waving is performed to expand the diameter of the pipe and simultaneously increase the N-value between the piles. The N-value is a numerical value that serves as a reference for determining the compaction and strength of the soil.

[0018] Figure 2 is a diagram illustrating the construction method. In step A in Figure 2, the casing pipe 33 is placed in a predetermined position, and a certain amount of sand is poured in through the hopper 30. In step B, the casing pipe 33 is rotated by the rotary drive device 32 while being penetrated into the ground. In step C, it is penetrated to a predetermined depth. In step D, the casing pipe 33 is raised to a specified height while the sand inside the casing pipe 33 is discharged. In step E, the casing pipe 33 is driven back, and the discharged sand and the surrounding ground are compacted. In step F, construction is carried out by wave construction, in which steps D and E are repeatedly performed in small increments to expand the diameter.

[0019] That is, in the material discharge operation, compressed air is introduced into the pipe to increase the pressure inside the pipe, forcing the material out of the casing pipe 33. In addition, a jet is provided to loosen the material inside the pipe. The material discharge situation will vary depending on when and for how long these air supply and jet operations are performed.

[0020] Furthermore, when constructing a single sand pile, the operating method may differ between deep and shallow areas. In deep areas, the soil and water pressure at the tip of the casing pipe 33 is greater, and in order to counteract this, the internal pressure inside the casing must be increased to discharge the material. In shallow areas, the soil and water pressure at the tip of the casing pipe 33 is not as great as in deep areas, and therefore the internal pressure inside the casing does not need to be increased as much. Therefore, the time required for the air supply operation to inject compressed air into the casing pipe 33 tends to be longer in deep areas and shorter in shallow areas. Furthermore, differences are also observed between the operations when withdrawing the casing pipe 33 and when driving it back.

[0021] The construction pattern verification device 100 according to this embodiment is a device for acquiring construction information and verifying the quality of the sand removal rate (material discharge status) according to the construction pattern in the above-mentioned ground compaction method. Next, the details of this construction pattern verification device 100 will be described.

[0022] (Configuration of the construction pattern verification device 100) 3 is a block diagram showing the configuration of the construction pattern verification device 100 according to this embodiment. As shown in FIG. 3, the construction pattern verification device 100 may be configured as a system including a general-purpose microcomputer including a control unit 110 (CPU), a storage unit 120 (memory), an input / output IF 130 (Interface), and a communication IF 140. In this case, a computer program for causing the microcomputer to function as the construction pattern verification device 100 may be installed in the microcomputer. By executing the computer program, the microcomputer functions as a plurality of information processing circuits included in the construction pattern verification device 100.

[0023] In this embodiment, an example is shown in which software is used to realize multiple information processing functions of the construction pattern verification device 100. The construction pattern verification device 100 functions as multiple information processing circuits provided in the construction pattern verification device 100 by executing a computer program.

[0024] As another configuration, the construction pattern verification device 100 can be configured by preparing dedicated hardware for executing each information processing function and configuring the information processing function using a system LSI (Large Scale Integration) or the like. Also, the construction pattern verification device 100 may configure a system in which multiple information processing functions are configured using individual hardware.

[0025] The control unit 110 operates based on a program (not shown) stored in the storage unit 120, and executes each function of the construction pattern verification device 100. The program is not limited to being stored in the storage unit 120, and may be stored in, for example, a ROM (not shown) or the like within the construction pattern verification device 100.

[0026] As shown in FIG. 4, the storage unit 120 stores information stored in a construction information DB 121, a pattern information DB 122, and a calculation result information DB 123 in the storage unit 120 as data.

[0027] Furthermore, as described above, the storage unit 120 may store programs for each function executed by the control unit 110. The information and programs stored in the storage unit 120 may be configured as physically or logically separated areas within a single storage device. Alternatively, the storage units 120 for each data may be configured to be provided in multiple physically different storage devices.

[0028] The input / output IF 130 is an interface for transmitting and receiving data between the construction pattern verification device 100 and the outside. The input / output IF 130 may also be an interface for transmitting and receiving information to and from a user (construction manager). The input / output IF 130 includes, for example, an input IF and an output IF (not shown).

[0029] Furthermore, the input IF in the input / output IF 130 has an interface function for inputting various information by the user (construction manager), and information may be input from outside the construction pattern verification device 100. Information is input to the input IF by the user via, for example, a keyboard, a mouse, a touch panel, a trackball, or a voice recognition device connected to the construction pattern verification device 100. Furthermore, the input IF can input information as a data input terminal for inputting data from an external storage device (not shown) or the like.

[0030] Furthermore, the output IF in the input / output IF 130 can display construction information, pattern information, calculation result information, etc., which will be described later, on a display device (not shown) such as a monitor connected to the construction pattern verification device 100. The display device is, for example, a display device, a projector device, etc.

[0031] The communication IF 140 is, for example, an interface that enables mutual communication between the construction pattern verification device 100 and an external device.

[0032] (Functional configuration of the construction pattern verification device 100) 4 is a block diagram showing the functional configuration of the construction pattern verification device 100 according to this embodiment. As shown in FIG. 4, the control unit 110 of the construction pattern verification device 100 includes a construction information acquisition unit 111, a pattern information generation unit 112, a simulation execution unit 113, a calculation result display unit 114, and an operation information selection unit 115 as functions.

[0033] The construction information acquisition unit 111 acquires construction information of construction performed by the compaction pile construction device 20. Furthermore, the construction information acquisition unit 111 stores the acquired construction information in the construction information DB 121. Figure 5 is a diagram for explaining construction information applied to the construction pattern verification device 100 according to this embodiment.

[0034] As mentioned above, in the compaction method using sand piles, when verifying construction patterns, it is necessary to classify the construction patterns by depth and work content and specify the operations for each.

[0035] For example, when considering the construction of a 15m sand pile, the operations of pulling out and driving back the casing pipe 33 in the deep area of ​​15m to 10m can be considered. Also, the operations of pulling out and driving back the casing pipe 33 in the medium depth area of ​​10m to 5m can be considered, and the operations of pulling out and driving back the casing pipe 33 in the shallow area of ​​5m to the ground surface can be considered. Furthermore, operations such as those during penetration of the casing pipe 33 and those during material supply can be added as necessary.

[0036] For example, when constructing a 15m sand pile, in the deepest section, from 15m to 10m, the operations of pulling out and driving back the casing pipe 33 are each divided into four sections. Furthermore, in the pulling out work, the air supply operation is turned ON, the jet operation is turned OFF, and the exhaust operation is turned OFF in the first two sections. Furthermore, in the following three and four sections, all operations are turned OFF. Furthermore, in the driving back work, all operations are turned OFF in sections one through three, and only the jet operation is turned ON in the final four sections. These operations can be summarized as shown in Figure 5, which shows the relationship between the work content, depth section, section, and the jet, air supply, and exhaust.

[0037] In the example shown in FIG. 5, an example of a depth division of 10 m to 15 m is shown, but the settings of each operation are also performed for other depth divisions.

[0038] The construction information acquisition unit 111 also acquires sand level gauge data before and after the target operation as data items. Furthermore, the construction information acquisition unit 111 also acquires information such as the tip depth of the casing pipe 33 as necessary.

[0039] The pattern information generating unit 112 generates a construction pattern (pattern information) based on the construction information, and stores the generated pattern information in the pattern information DB 122.

[0040] Specifically, the pattern information generating unit 112 compares the sand level gauge data with a predetermined threshold value for determining whether the sand has been removed, and classifies the result as over-removal, normal, or insufficient.

[0041] This judgment is made based on the total value of the movement of the sand level gauge for one set of operations, i.e., pulling out and pushing back. Alternatively, it may be evaluated based on the ratio of the casing pulling length to the movement of the sand level gauge for one set of operations, i.e., pulling out and pushing back. In addition, the evaluation category of the previous set is also used for the extracted set. This makes it possible to obtain the transition status between the sand removal status before and after the specified operation. Note that the previous set does not need to match the specified construction pattern.

[0042] There are nine transition patterns in total: three patterns from shortage to shortage-normal-excess discharge, three patterns from normal to shortage-normal-excess discharge, and three patterns from excess discharge to shortage-normal-excess discharge, and the pattern information generation unit 112 calculates the occurrence probability of each of these patterns.

[0043] For example, if there are 100 pairs whose evaluation category is insufficient before the operation, and of those, 5 pairs whose evaluation category after the operation remains insufficient, 91 pairs whose evaluation category changes to normal, and 4 pairs whose evaluation category changes to over-discharge, then the occurrence probabilities are 5%, 91%, and 4%, respectively. These occurrence probabilities represent the probability of transitioning to each evaluation category when the operation is performed when there is a shortage before the operation, and the total value of each occurrence probability is 100%. The occurrence probabilities are calculated in the same way for cases where the evaluation category before the operation is normal or over-discharge.

[0044] FIG. 6A shows the probability of occurrence of each transition pattern when a certain pattern A operation is performed. For example, in the example shown in FIG. 6A, if the evaluation category is insufficient after performing a specified operation at the deepest part, the next operation will result in a 91% probability of becoming normal, and the next operation will result in a 95% probability of becoming normal. FIG. 6B also shows the probability of occurrence of each transition pattern when a certain pattern B operation is performed. For example, pattern B shown in FIG. 6B shows that the transition probability from normal to normal is higher than pattern A shown in FIG. 6A.

[0045] The simulation execution unit 113 executes a simulation of the occurrence probability of whether the missing state of the material forming the pillar is good or bad for the construction pattern. The simulation execution unit 113 also stores the simulation results in the calculation result information DB 123. Specifically, the simulation execution unit 113 executes a simulation of the occurrence probability of insufficient, normal, and excessive discharge as states of the missing state of the material forming the pillar, and stores the results in the calculation result information DB 123.

[0046] Furthermore, the simulation execution unit 113 executes a simulation of the occurrence probability using a common Markov chain Monte Carlo method. The Markov chain Monte Carlo method is a Monte Carlo method that estimates parameters by repeatedly generating random numbers, and applies a Markov chain, which is a probability model in which the current state depends only on the immediately preceding state. In other words, the Markov chain Monte Carlo method is a simulation method that generates a large number of random numbers corresponding to a Markov chain and calculates the probability.

[0047] Here, the details of the simulation executed by the simulation execution unit 113 will be described.

[0048] For example, when constructing sand piles, the question arises as to which of Pattern A and Pattern B shown in Figures 6A and 6B should be adopted. One way to determine which should be adopted is to calculate the probability of occurrence of insufficient, normal, or excessive discharge after each operation when each operation is performed consecutively, and adopt the one with the higher probability of normal occurrence. For example, the Markov Chain Monte Carlo method can be applied to solve this type of problem.

[0049] Specifically, if the operations of Pattern A and Pattern B are repeated 1000 times each, and if the initial result is a shortage, the next operation will result in a transition to either a shortage, normal, or excess discharge, and this is simulated using random number generation.

[0050] For example, three types of random numbers, 0, 1, and 2, are generated on a computer, with 0 representing a shortage, 1 representing normal, and 2 representing excessive discharge. After 1,000 repetitions, the transition probabilities from shortage to each evaluation category are set to 5%, 91%, and 4%, respectively, in pattern A.

[0051] The simulation execution unit 113 generates random numbers so that the transition probability from normal / excessive discharge to each evaluation category will be as shown in the table, and after repeating the process 1000 times, it calculates the occurrence probability of each evaluation category. In this way, it is possible to know the occurrence probability of normal after repeating pattern A and pattern B 1000 times each.

[0052] 7A and 7B show the results of the probability of each operation calculated by the simulation execution unit 113. The results shown in Fig. 7A and 7B were obtained by the calculation by the simulation execution unit 113, and it can be seen that pattern B shown in Fig. 7B has a higher probability of normal occurrence.

[0053] In this way, by using the Markov Chain Monte Carlo method in the simulation execution unit 113, it is possible to configure a simulator that can predict in advance the construction results according to the construction pattern.

[0054] For example, when an operator operates the machine manually, it is possible to flexibly perform optimal operations based on the situation and the operator's experience, but when operating the machine automatically, the construction pattern must be input into the machine in advance, and selecting the construction pattern in advance is important.

[0055] However, by calculating the probability using the construction pattern verification device 100 according to this embodiment, it becomes possible to directly obtain the probability of each evaluation category without using complicated means by the operator.

[0056] Furthermore, in the case of construction that selectively uses pattern A and pattern B, if the operator uses a complex method, the probability cannot be directly calculated without the corresponding construction data. On the other hand, the construction pattern verification device 100 according to this embodiment can also handle cases where, for example, an operation of pattern B is adopted when the situation before the operation is insufficient, and pattern A is adopted otherwise. Figure 7C shows the calculation results by the simulation execution unit 113 when an operation of pattern B is adopted when the situation before the operation is insufficient, and pattern A is adopted otherwise. In this way, the construction pattern verification device 100 according to this embodiment can calculate the transition probability according to the operation situation represented by multiple patterns.

[0057] The calculation result display unit 114 displays the calculation results in the simulation execution unit 113. For example, the calculation results may be displayed on a display device (not shown) such as a monitor via the input / output IF 130 of the construction pattern verification device 100.

[0058] The operation information selection unit 115 selects operation information based on the results of the simulation displayed on the calculation result display unit 114. Specifically, for example, a user may select operation information to be operated in sand pile construction via the input / output IF 130 based on the calculation results displayed on the calculation result display unit 114. Alternatively, the operation information selection unit 115 may be configured to automatically select appropriate operation information from the calculation results displayed on the calculation result display unit 114 based on a predetermined threshold value set in advance.

[0059] As a result, the construction pattern verification device 100 verifies an appropriate construction pattern for a construction method that builds sand piles in the ground and compacts the ground. Then, the user can carry out appropriate construction based on the verification results.

[0060] (Outline of processing flow of construction pattern verification device 100) Next, the flow of processing in the construction pattern verification device 100 will be shown using the flowchart shown in Figure 8. A series of operations of the construction pattern verification device 100 shown in the flowchart of Figure 8 starts when the construction pattern verification device 100 is started, and ends when the work is completed. In addition, the processing in the flowchart shown in Figure 8 also ends when the power is turned off or an interrupt occurs to end the processing. In addition, in the following explanation of the flowchart, the same content as that described in the explanation of the construction pattern verification device 100 above will be omitted or simplified.

[0061] In step S801, the construction information acquisition unit 111 acquires construction information about construction performed by the compaction pile construction device 20. The construction information acquisition unit 111 also stores the acquired construction information in the construction information DB 121. Thereafter, the process proceeds to step S802.

[0062] In step S802, the pattern information generation unit 112 generates a construction pattern (pattern information) based on the construction information. The pattern information generation unit 112 also stores the generated pattern information in the pattern information DB 122. Thereafter, the process proceeds to step S803.

[0063] In step S803, the simulation execution unit 113 executes a simulation of the occurrence probability regarding the quality of the missing material forming the columnar object for the construction pattern. The simulation execution unit 113 also stores the simulation results in the calculation result information DB 123. The simulation execution unit 113 executes the simulation a predetermined number of times. The simulation executed by the simulation execution unit 113 is, for example, a simulation using the Markov Chain Monte Carlo method. The predetermined number of times corresponds to, for example, 1000 times. Thereafter, the process proceeds to step S804.

[0064] In step S804, the simulation execution unit 113 determines whether the simulation has been executed a predetermined number of times. The predetermined number of times is, for example, 1000 times. In step S804, if the simulation execution unit 113 determines that the execution has been completed the predetermined number of times (step S804: YES), the process proceeds to step S805. On the other hand, in step S804, if the simulation execution unit 113 determines that the execution has not been completed the predetermined number of times (step S804: NO), the process returns to step S803, and the process from step S803 is repeatedly executed.

[0065] In step S805, the calculation result display unit 114 displays the calculation result in the simulation execution unit 113. For example, the calculation result may be displayed on a display device (not shown) such as a monitor via the input / output IF 130 of the construction pattern verification device 100. After that, the process proceeds to step S806.

[0066] In step S806, the control unit 110 determines whether the verification process has been completed. For example, the control unit 110 may determine the completion of the verification process based on a predetermined verification schedule. Alternatively, when the user determines whether to terminate the process based on the results displayed on the calculation result display unit 114, the user may input information regarding whether to continue the process via the input / output IF 130, and the control unit 110 may determine the termination based on that information. Note that the determination process of the verification process in step S806 is not limited to these processes, and the termination may also be determined based on the termination of the process in the construction pattern verification device 100 (power-off control), etc.

[0067] In step S806, if control unit 110 determines that the verification process has ended (step S806: YES), the process ends. On the other hand, in step S806, if control unit 110 determines that the verification process has not ended (step S806: NO), the process proceeds to step S807.

[0068] In step S807, the operation information selection unit 115 selects operation information based on the simulation results displayed on the calculation result display unit 114. Specifically, for example, a user may select operation information to be operated in sand pile construction via the input / output IF 130 based on the calculation results displayed on the calculation result display unit 114. Alternatively, the operation information selection unit 115 may be configured to automatically select appropriate operation information from the calculation results displayed on the calculation result display unit 114 based on a predetermined threshold value set in advance. Thereafter, the process returns to step S803, and the process from step S803 is repeated.

[0069] As described above, the construction pattern verification device 100 according to this embodiment is a construction pattern verification device 100 that verifies a construction pattern used in a compaction pile construction device 20 that compacts the ground by constructing pillars underground. The construction pattern verification device 100 includes a construction information acquisition unit 111 that acquires construction information of construction performed by the compaction pile construction device 20. The construction pattern verification device 100 also includes a pattern information generation unit 112 that generates a construction pattern based on the construction information. The construction pattern verification device 100 also includes a simulation execution unit 113 that executes a simulation of the occurrence probability of whether or not the material forming the pillars is missing for the construction pattern. The construction pattern verification device 100 also includes a calculation result display unit 114 that displays the results of the simulation.

[0070] This allows the construction pattern verification device 100 to generate and verify an appropriate construction pattern for a construction method that involves constructing sand piles in the ground and compacting the ground, thereby enabling the user to carry out appropriate construction work based on the verification results.

[0071] Furthermore, the simulation execution unit 113 of the construction pattern verification device 100 according to this embodiment may execute a simulation of the occurrence probability of insufficient, normal, and excessive discharge as the state of the missing state of the material forming the columnar object.

[0072] As a result, the construction pattern verification device 100 can perform a more accurate simulation of the occurrence probability by applying each state corresponding to the result of the amount of sand loss in the compaction pile construction device 20 to the simulation.

[0073] Moreover, the simulation execution unit 113 of the construction pattern verification device 100 according to this embodiment may execute a simulation of the occurrence probability by the Markov chain Monte Carlo method.

[0074] As a result, the construction pattern verification device 100 can apply the Markov Chain Monte Carlo method to the simulation in the simulation execution unit 113, thereby enabling more appropriate verification of the construction pattern.

[0075] (Other embodiments) Although the embodiments have been described in detail with reference to the drawings, the present embodiments are not limited to the contents described in the above embodiments. Furthermore, the components described above include those that can be easily imagined by a person skilled in the art and those that are substantially the same. Furthermore, the configurations described above can be combined as appropriate. Furthermore, various omissions, substitutions, or modifications of the configurations can be made without departing from the spirit of the embodiments.

[0076] In addition, a computer program (construction pattern verification program) that causes a computer to execute the processing in the construction pattern verification device 100 described above, and a computer-readable recording medium on which the program is recorded, are included in the scope of this embodiment. Here, any type of computer-readable recording medium may be used. In addition, the computer program is not limited to one recorded on the above-mentioned recording medium, and may be one transmitted via a telecommunications line, a wireless or wired communication line, a network such as the Internet, or the like.

[0077] (Actions, effects, etc.) The effects of this embodiment will be described below.

[0078] (1) The construction pattern verification device 100 according to the first aspect of this embodiment is a construction pattern verification device 100 that verifies a construction pattern used in a compaction pile construction device 20 that compacts the ground by constructing pillars underground. The construction pattern verification device 100 includes a construction information acquisition unit 111 that acquires construction information of construction performed by the compaction pile construction device 20. The construction pattern verification device 100 also includes a pattern information generation unit 112 that generates a construction pattern based on the construction information. The construction pattern verification device 100 also includes a simulation execution unit 113 that executes a simulation of the occurrence probability related to the quality of the missing material that forms the pillars for the construction pattern. The construction pattern verification device 100 also includes a calculation result display unit 114 that displays the results of the simulation.

[0079] With this configuration, the construction pattern verification device 100 can generate and verify an appropriate construction pattern for a construction method that involves constructing sand piles underground and compacting the ground. This enables the user to carry out appropriate construction based on the verification results.

[0080] (2) The simulation execution unit 113 of the construction pattern verification device 100 according to the second aspect of this embodiment may execute a simulation of the occurrence probability of insufficient, normal, and excessive discharge as the state of the missing material that forms the columnar object.

[0081] With this configuration, the construction pattern verification device 100 can perform a more accurate simulation of occurrence probability by applying each state corresponding to the result of the sand loss amount in the compaction pile construction device 20 to the simulation.

[0082] (3) The simulation execution unit 113 of the construction pattern verification device 100 according to the third aspect of this embodiment may execute a simulation of the occurrence probability by the Markov Chain Monte Carlo method.

[0083] With this configuration, the construction pattern verification device 100 can apply the Markov Chain Monte Carlo method to the simulation in the simulation execution unit 113, thereby enabling more appropriate verification of the construction pattern.

[0084] (4) A construction pattern verification method according to a fourth aspect of this embodiment is a verification method executed by a computer to verify a construction pattern used in a compaction pile construction device 20 that compacts the ground by constructing pillars underground. The construction pattern verification method acquires construction information constructed by the compaction pile construction device 20. The construction pattern verification method also generates a construction pattern based on the construction information. The construction pattern verification method also performs a simulation of the occurrence probability regarding the quality of the missing material that forms the pillars for the construction pattern. The construction pattern verification method also displays the results of the simulation.

[0085] With this configuration, the construction pattern verification method can generate and verify an appropriate construction pattern for a construction method that builds sand piles in the ground and compacts the ground, thereby enabling the user to carry out appropriate construction based on the verification results. [Explanation of symbols]

[0086] 10 Verification System 20 Compaction pile construction equipment 30 Hopper 31 Lifting device 32 Rotational drive unit 33 Casing pipe 100 Construction pattern verification device 110 control section 111 Construction Information Acquisition Department 112 Pattern information generation unit 113 Simulation Execution Unit 114 Calculation result display section 115 Operation information selection section 120 Storage section 121 Construction information DB 122 Pattern Information DB 123 Calculation result information DB 130 Input / Output Interface 140 Communication Interface

Claims

1. A construction pattern verification device that verifies a construction pattern used in a compaction pile construction device that compacts the ground by constructing pillar-shaped objects in the ground, a construction information acquisition unit that acquires construction information performed by the compaction pile construction device; A pattern information generation unit that generates the construction pattern based on the construction information; a simulation execution unit that executes a simulation of the occurrence probability regarding the quality of the missing state of the material forming the columnar object for the construction pattern; a calculation result display unit that displays the results of the simulation; A construction pattern verification device comprising:

2. The construction pattern verification device according to claim 1 , wherein the simulation execution unit executes the simulation of the occurrence probability regarding insufficient, normal, and excessive discharge as states of the missing degree of the material forming the columnar object.

3. The construction pattern verification device according to claim 1 or 2, wherein the simulation execution unit executes the simulation of the occurrence probability by a Markov chain Monte Carlo method.

4. A verification method executed by a computer for verifying a construction pattern used in a compaction pile construction device that compacts the ground by constructing pillars in the ground, comprising: Acquire construction information performed by the compaction pile construction device; generating the construction pattern based on the construction information; A simulation of the occurrence probability regarding the quality of the missing material forming the pillars is performed for the construction pattern; A verification method that displays the results of the simulation.

Images