Data Structure of Dictionary Information

Abstract

To estimate a pile construction result.SOLUTION: A pile construction evaluation system comprises: a site information acquisition unit that acquires, as site information, construction place information indicating the position of a construction site and construction site testing result information including at least soil obtained for each depth at the construction site and an N value indicating a standard penetration testing result; an estimation unit that estimates characteristics of a construction result at the construction site on the basis of dictionary information storing the testing result information including at least the soil obtained for each depth at the testing and the N value indicating the standard penetration testing result and the generation result of the characteristics of the construction result at the execution place during pile construction in association with each other and the site information acquired by the site information acquisition unit; and an output unit that outputs the result of estimation executed by the estimation unit.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a pile constructability evaluation system. [Background technology]

[0002] 2. Description of the Related Art Conventionally, techniques have been disclosed for estimating the distribution of geological strata and geological properties required for foundation work on a building (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-37427 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional techniques as described above, there is a problem in that it is not possible to estimate the construction results of foundation piles (hereinafter also simply referred to as piles) of a building when the piles are constructed.

[0005] The present invention has been made to solve the above problems, and an object of the present invention is to provide a pile constructability evaluation system that can estimate the results of pile construction. [Means for solving the problem]

[0006] One embodiment of the present invention is a pile constructability evaluation system including: a site information acquisition unit that acquires as site information: construction location information indicating the location of a construction site; construction site test result information including at least the soil quality at each depth obtained at the construction site and an N value indicating the result of a standard penetration test; dictionary information that associates and stores test result information including at least the soil quality at each depth obtained in the test and an N value indicating the result of a standard penetration test, information indicating the location where the test was conducted, and the occurrence results of the characteristics of the construction results during pile construction at the implementation location; an estimation unit that estimates the characteristics of the construction results that occur at the construction site based on the site information acquired by the site information acquisition unit; and an output unit that outputs the results estimated by the estimation unit. Effect of the Invention

[0007] According to the present invention, it is possible to provide a pile constructability evaluation system capable of estimating the results of pile construction. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a diagram illustrating an example of a functional configuration of the pile constructability evaluation system according to the present embodiment. [Diagram 2] FIG. 2 is a diagram showing an example of the operation flow of the pile constructability evaluation system of the present embodiment. [Diagram 3] FIG. 2 is a diagram illustrating an example of a functional configuration of a site information generating device according to the present embodiment. [Figure 4] FIG. 13 is a diagram showing an example of a handwritten boring test result form. [Diagram 5] 4 is a diagram showing an example of soil classification information generated by a site information generating unit of the present embodiment. FIG. [Figure 6] FIG. 1 is a diagram showing an example of standard penetration test result information generated by the on-site information generating unit of this embodiment. [Figure 7] FIG. 4 is a diagram illustrating an example of feature type information according to the present embodiment. [Figure 8] FIG. 13 is a diagram showing an example of the characteristics of the construction results (remaining high / remaining low). [Figure 9]FIG. 13 is a diagram showing an example of a characteristic of a construction result (intermediate layer not yet developed). [Figure 10] FIG. 13 is a diagram showing an example of the characteristics (slippage) of the construction result. [Figure 11] FIG. 13 is a diagram showing an example of a characteristic of construction results (insufficient penetration into the supporting layer). [Figure 12] FIG. 4 is a diagram illustrating an example of dictionary information according to the present embodiment. [Figure 13] FIG. 11 is a diagram illustrating an example of an estimation result by an estimation unit of the present embodiment. [Figure 14] FIG. 13 is a diagram illustrating a modified example of the functional configuration of the estimation device. [Figure 15] FIG. 2 is a diagram illustrating an example of an operation flow of the estimation device. [Figure 16] 4 is an example of construction information output by a construction machine. [Figure 17] 13 is a diagram showing an example of a comparison result output by an output unit of the present modified example. FIG. [Figure 18] FIG. 1 is a diagram showing an example of a conventional boring test result. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The pile constructability evaluation system 1 of this embodiment can be used in the design stage or material ordering stage of pile construction, i.e., the pre-construction stage, or in the on-site pile construction stage. First, the case where the pile constructability evaluation system 1 is used in the design stage or material ordering stage of pile construction will be described with reference to Figs. 1 and 2. The pile construction performance evaluation system 1 can handle any type of pile, for example, a steel pipe pile or a concrete pile. In this embodiment, however, a steel pipe pile having a spiral blade at the tip and penetrating into the ground by the propulsive force of the blade caused by the rotation of the pile will be described as an example.

[0010] [Functional configuration of pile constructability evaluation system] FIG. 1 is a diagram showing an example of a functional configuration of a pile constructability evaluation system 1 according to the present embodiment. FIG. 2 is a diagram showing an example of the flow of operations of the pile constructability evaluation system 1 of this embodiment. The pile constructability evaluation system 1 includes an estimation device 10, a site information generation device 20, an output device 30, and a dictionary information storage unit 40. The estimation device 10 is a computer device that operates based on a program. The estimation device 10 includes a site information acquisition unit 110, an estimation unit 120, and an output unit 130 as its functional units.

[0011] (Step S10) The site information acquisition unit 110 acquires the site information 221 from the site information generation device 20. The site information 221 is information obtained from a site where pile construction is planned. For example, a boring test is conducted at the site where pile construction is planned. In this boring test, the soil quality at each depth and the N value indicating the result of a standard penetration test are obtained. In this case, the site information 221 includes construction location information indicating the position of the site where pile construction is planned, and boring test result 211 (construction site boring result information) obtained as a result of a prior boring test at the site where construction is planned. The functional configuration of the site information generating device 20 that generates the site information 221 will be described. [Functional configuration of the on-site information generating device] FIG. 3 is a diagram illustrating an example of a functional configuration of the site information generating device 20 of the present embodiment. The site information generating device 20 includes a site information generating unit 210 , an operation unit 220 , a scanner 230 , a memory slot 240 , a display unit 250 , and a site information storage unit 260 .

[0012] The site information generating unit 210 is a computer device and operates based on a program. The operation unit 220 includes, for example, a keyboard, a mouse, a touch panel, and the like, and detects operations by an operator of the site information generating device 20. The operation unit 220 outputs the detected operations to the site information generating unit 210. The scanner 230 converts a paper document into a digital image and outputs the converted digital image to the site information generating unit 210. The memory slot 240 reads out digital data from a portable recording medium and outputs the read out digital data to the site information generating unit 210. The display unit 250 includes, for example, a liquid crystal display, and displays various calculation results by the site information generating unit 210. The site information storage unit 260 is, for example, a semiconductor storage device, a hard disk device, or a cloud server, and stores the site information 221 generated by the site information generation unit 210.

[0013] The site information generating device 20 generates the site information 221, for example, by reading a handwritten boring test result form with a scanner 230, or by reading digital data output by the boring test machine from a memory slot 240.

[0014] 4 is a diagram showing an example of a handwritten boring test result form. In this example, the boring test result 211 form has depth on the vertical axis, and the soil type name and N value for each depth are written. The scanner 230 converts the boring test result 211 form into a digital image and outputs it to the site information generation unit 210. The site information generating unit 210 converts the digital image of the report of the boring test result 211 into digital data of the soil classification information 222 and the standard penetration test result information 223 .

[0015] FIG. 5 is a diagram showing an example of the soil classification information 222 generated by the site information generating unit 210 of this embodiment. FIG. 6 is a diagram showing an example of the standard penetration test result information 223 generated by the site information generating unit 210 of this embodiment. The site information generating unit 210 generates the soil classification information 222 and the standard penetration test result information 223 as site information 221 .

[0016] The site information 221 may include information indicating construction conditions, such as the specifications of the piles to be constructed at the site and the specifications of the construction machine. In addition, in this example, the case where the boring test results carried out at the site where construction is planned are used as the site information 221 has been described, but this is not limiting. The site information acquisition unit 110 may acquire, as the site information 221, information on a position close to the site where construction is planned from information accumulated in a database such as public information on the ground and geology that summarizes boring test results carried out at various points in the past. Returning to FIG. 1, the site information acquisition unit 110 outputs the acquired site information 221 to the estimation unit 120.

[0017] (Step S20) Returning to FIG. 2, the estimation unit 120 acquires the site information 221 output by the site information acquisition unit 110. In addition, the estimation unit 120 acquires the dictionary information 401 stored in the dictionary information storage unit 40. The dictionary information 401 is information that accumulates boring test results carried out at various points in the past. The dictionary information storage unit 40 stores boring result information 414 including at least the soil quality at each depth obtained as a result of the boring test and the N value indicating the result of the standard penetration test, implementation location information 411 indicating the implementation location of the boring test, and construction result information 413 at the time of pile construction at the implementation location, in association with each other. The dictionary information 401 will be described with reference to Figs. 7 to 12.

[0018] [Examples of types of construction results] FIG. 7 is a diagram showing an example of feature type information 402 of this embodiment. The feature type information 402 is information that classifies the contents of the features of construction results that have occurred in the past. In one example of this embodiment, the feature type information 402 stores a feature ID of the construction result, importance, and information indicating the contents of the features of the construction result, which are associated with each other. The feature ID of the construction result is an identifier that identifies the contents of the features of the construction result. The importance is an index that indicates the rank of the magnitude of the impact that the features of the construction result have. An example of the contents of the features of the construction result will be described.

[0019] Figure 8 is a diagram showing an example of the characteristics of the construction results (high and low). High-level stopping refers to a situation where the supporting layer is located at a higher (shallower) position than the planned depth at the time of design, and the piles stop at a higher position than planned. When high-level stopping occurs, it may be necessary to cut the piles at the construction site. When low-level stopping occurs, it may be necessary to add piles (extend them).

[0020] Figure 9 is a diagram showing an example of the characteristics of the construction result (intermediate layer not being developed). The intermediate layer not being developed refers to a situation where the intermediate layer (intermediate supporting layer) assumed at the time of design does not exist at the actual construction site, contrary to what was assumed at the time of design, or the N value tends to be smaller than that assumed, the layer thickness is thinner than expected, etc. When the intermediate layer is not developed, it may be necessary to add piles (extend them).

[0021] Figure 10 shows an example of the characteristics of the construction results (slippage). Slippage occurs mainly at the boundary between layers of clay soil, where the pile blades are unable to obtain driving force and spin freely. When slippage occurs, the construction period may be significantly extended from the planned time.

[0022] Figure 11 is a diagram showing an example of a construction result characteristic (insufficient penetration into the bearing layer). Insufficient penetration into the bearing layer (or difficulty in excavating the bearing layer) refers to a situation in which the bearing layer cannot be excavated due to a dense sand layer or gravel layer, and the bearing capacity is not fully realized. In the case of insufficient penetration into the bearing layer, it may be necessary to take measures such as increasing the number of piles or changing the construction method.

[0023] [Dictionary information] FIG. 12 is a diagram showing an example of dictionary information 401 of this embodiment. The dictionary information 401 is information that accumulates boring test results and construction conditions at the time of past pile construction, and the contents of the characteristics of the construction results that occurred during the construction. In this example, the dictionary information 401 associates implementation location information 411, construction condition information 412, construction result information 413, and boring result information 414. The implementation location information 411 is information that indicates the implementation location of pile construction, for example, latitude and longitude, or a position in an administrative district. The construction condition information 412 is information that indicates, for example, the specifications of the pile and the specifications of the construction machine. Here, the specifications of the pile include the material and shape of the pile (for example, the shape of the blade in the case of a steel pipe pile with blades), plate thickness, etc. The construction result information 413 is information indicating which of the above-mentioned characteristic type information 402 the characteristics of the construction result occurring at the site correspond to. The boring result information 414 is information indicating the result of the boring test performed at the site.

[0024] (Step S30) Returning to Fig. 1, the estimation unit 120 estimates the characteristics of a construction result that may occur at the construction site, based on the site information 221 acquired in step S10 and the dictionary information 401 acquired in step S20. An example of a method for estimating the characteristics of a construction result by the estimation unit 120 will be described.

[0025] (1) The estimation unit 120 estimates the characteristics of construction results that may occur at the planned construction site based on the dictionary information 401 for a location close to the location of the planned construction site indicated by the site information 221 from among the dictionary information 401. In this case, the estimation unit 120 may generate the estimation result in a format that allows comparison between past construction results in the vicinity of the planned construction site and the estimated result at the planned construction site.

[0026] (2) The estimation unit 120 estimates the characteristics of the construction results that may occur at the planned construction site based on the dictionary information 401 that has a soil composition similar to the soil composition of the planned construction site indicated by the site information 221 from among the dictionary information 401. The soil composition refers to the combination of the order of soil types at each depth and the thickness of each layer.

[0027] (3) The estimation unit 120 estimates the characteristics of the construction results that may occur at the planned construction site based on the dictionary information 401 having an N-value change pattern similar to the N-value change pattern of the planned construction site indicated by the site information 221 from among the dictionary information 401. The N-value change pattern refers to a combination of the magnitude of the N value for each depth.

[0028] (4) The estimation unit 120 estimates the characteristics of the construction results that may occur at the planned construction site based on the dictionary information 401 having construction conditions similar to the construction conditions indicated by the site information 221 from among the dictionary information 401.

[0029] The estimation unit 120 may estimate the characteristics of the construction result that may occur at the planned construction site by combining the above-mentioned estimation methods (1) to (4). For example, the estimation unit 120 may estimate the characteristics of the construction results that may occur at the planned construction site based on dictionary information 401 that has a soil composition similar to the soil composition of the planned construction site indicated by the site information 221 and has an N-value change pattern similar to the N-value change pattern of the planned construction site indicated by the site information 221.

[0030] That is, the estimation unit 120 estimates the features occurring at the construction site based on the dictionary information 401 and the site information 221 acquired by the site information acquisition unit 110. The estimation unit 120 outputs the estimation result to the output unit 130.

[0031] (Step S40) The output unit 130 outputs the estimation result of the characteristics of the construction result that may occur at the planned construction site estimated by the estimation unit 120 to the output device 30. The output device 30 includes, for example, a liquid crystal display and a printer, and outputs the estimation result. An example of the estimation result output by the output device 30 will be described with reference to FIG.

[0032] [Example of estimation results] FIG. 13 is a diagram showing an example of the estimation result by the estimation unit 120 of this embodiment. In the example of the figure, the vertical axis of the graph indicates depth, and the horizontal axis indicates the magnitude of the N value, the estimated value of the rotational force (torque) applied to the pile by the construction machine, the estimated value of the rotation speed, and the estimated value of the excavation speed of the pile. In this example, the output device 30 outputs the type of the characteristic of the construction result and the depth at which the characteristic of the construction result occurs as the estimation result by the estimation unit 120 for a pile constructed at a certain construction site. In this example, the characteristics of the construction result are "80% slippage" at a depth of 9 m, "45% slippage" at a depth of 10 m, "40% high-level stoppage" at a depth of 13 m, "60% high-level stoppage" at a depth of 14 m, "50% high-level stoppage" at a depth of 15 m, and "50% impenetrable" at a depth of 16 m. The output device 30 may output the difference between the planned excavation time and the predicted excavation time (planned difference).

[0033] The output unit 130 may output the past construction results in the vicinity of the planned construction site and the estimated results at the planned construction site in a format that allows their positions to be compared on a map.

[0034] Furthermore, the output unit 130 may output the type of characteristics of the construction result for each order of soil properties in the depth direction.

[0035] As described above, the pile constructability evaluation system 1 estimates the characteristics of construction results that may occur at a construction site at the design stage or material ordering stage (i.e., the pre-construction stage) of pile construction. Conventionally, advance estimation of the characteristics of construction results that may occur at a construction site was sometimes performed by experienced skilled workers. According to the pile constructability evaluation system 1 configured as described above, advance estimation of the characteristics of construction results can be performed without the help of skilled workers.

[0036] In addition, in the past, at the design stage of pile construction, the results of boring test were printed on paper (or displayed as image data), and the pile construction conditions were then written down on the boring test results.

[0037] Fig. 18 is a diagram showing an example of a conventional boring test result. As shown in the figure, the conventional boring test result has a problem that it cannot be directly analyzed by a computer and it is difficult to share the information. On the other hand, according to the pile constructability evaluation system 1 of this embodiment, the site information generating device 20 generates the site information 221, which is information in a format that can be directly analyzed by a computer, based on the boring test result 211. According to the pile constructability evaluation system 1 configured in this way, the computer can directly analyze, and it is possible to easily share information.

[0038] [When used during on-site pile construction] 14 is a diagram showing a modified example of the functional configuration of the estimation device 10a. The estimation device 10a differs from the above-described estimation device 10 in that it includes an output unit 130a and a comparison unit 140. Note that the same components as those in the above-described estimation device 10 are denoted by the same reference numerals and their description will be omitted. The estimation device 10 a of this modified example is connected to a construction machine 50 .

[0039] FIG. 15 is a diagram showing an example of the flow of operations of the estimating device 10a. (Step S110 ) The comparison unit 140 acquires the estimation result from the estimation unit 120 . (Step S120) The comparison unit 140 acquires the construction information output by the construction machine 50.

[0040] Fig. 16 is an example of construction information output by the construction machine 50. The construction machine 50 excavates piles. In the example shown in the figure, the construction machine 50 constantly measures the rotational force (torque) that the construction machine applies to the piles during construction. The construction machine 50 outputs the rotational force obtained during the excavation of the piles to the estimation device 10a as construction information. In addition to the rotational force, the construction machine 50 constantly measures various information such as the rotation speed and pile excavation speed during construction. The construction machine 50 also outputs these various pieces of information to the estimation device 10a as construction information. In other words, the construction machine 50 outputs the construction information to the estimation device 10a according to the progress of construction (i.e., in real time).

[0041] (Step S130) Returning to FIG. 15, the comparison unit 140 compares the construction information output by the construction machine 50 with the estimation result by the estimation unit 120. As described above, the construction information includes various real-time information such as the rotational force (torque) applied to the pile by the construction machine, the rotation speed, and the excavation speed of the pile. The estimation result by the estimation unit 120 includes various estimation information such as an estimated value of the rotational force (torque) applied to the pile by the construction machine, an estimated value of the rotation speed, an estimated value of the excavation speed of the pile, and an estimation result of the characteristics of the construction result. The comparison unit 140 compares the real-time information with the estimation result estimated in advance. If the comparison result shows that there is a discrepancy between the real-time information and the estimation result, the comparison unit 140 generates a comparison result indicating that the construction by the construction machine 50 is not being performed as estimated. For example, if there is a discrepancy between the excavation speed of the pile indicated by the real-time information and the excavation speed of the pile indicated by the estimation result, the comparison unit 140 generates warning information notifying an abnormality in the excavation speed of the pile as the comparison result. The comparison section 140 outputs the comparison result to the output section 130a.

[0042] (Step S140) The output unit 130a outputs the comparison result by the comparison unit 140 to the output device 30 together with the estimation result by the estimation unit 120 described above.

[0043] FIG. 17 is a diagram showing an example of a comparison result output by the output unit 130a of this modified example. In this example, the vertical axis of the graph indicates depth, and the horizontal axis indicates the magnitude of the N value, the rotational force (torque) applied to the pile by the construction machine, the rotation speed, and the excavation speed of the pile. In this example, the output device 30 outputs the estimation results (i.e., information obtained at the time of design) for each of multiple piles constructed at a certain construction site and the real-time information output by the construction machine 50 (i.e., information obtained during construction) in a comparable format. In this figure, the estimation graph indicates the estimation results obtained at the time of design. The actual pile graph indicates the real-time information output by the construction machine 50.

[0044] According to the pile constructability evaluation system 1 configured as in this modified example, it is possible to present in real time a comparison result between the estimation result at the time of design and the construction status of the pile at the construction site.

[0045] In this modification, the output device 30 may be configured as a display device provided in the operator's seat of the construction machine 50. Also, the output device 30 may be configured as a mobile terminal carried by a supervisor at the pile construction site. According to the pile constructability evaluation system 1 configured in this way, the operator of the construction machine 50 and the construction supervisor can grasp the construction status of the pile in real time.

[0046] Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and appropriate modifications can be made without departing from the spirit of the present invention. The configurations described in the above-mentioned embodiments may be combined.

[0047] Each unit of each device in the above-described embodiments may be realized by dedicated hardware, or may be realized by a memory and a microprocessor.

[0048] In addition, each part of each device may be composed of a memory and a CPU (central processing unit), and the functions of each part of each device may be realized by loading a program for realizing the function of each part into the memory and executing the program.

[0049] In addition, a program for implementing the functions of each unit of each device may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed to perform processing by each unit of the control unit. Note that the term "computer system" here includes hardware such as the OS and peripheral devices.

[0050] In addition, if a WWW system is used, the "computer system" also includes the homepage providing environment (or display environment). In addition, "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into computer systems. Furthermore, "computer-readable recording medium" also includes those that dynamically hold a program for a short period of time, such as communication lines when transmitting a program via a network such as the Internet or a communication line such as a telephone line, and those that hold a program for a certain period of time, such as volatile memory inside a computer system that serves as a server or client in such cases. Furthermore, the above program may be one that realizes part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system. [Explanation of symbols]

[0051] 1... pile constructability evaluation system, 10... estimation device, 20... site information generation device, 30... output device, 40... dictionary information storage unit, 50... construction machine, 110... site information acquisition unit, 120... estimation unit, 130... output unit

Claims

Claim 1. An estimation device that acquires on-site information and estimates the characteristics of construction results occurring at the pile construction site indicated by the on-site information, wherein the data structure of dictionary information for estimating the characteristics of the construction results is as follows: test result information including at least the soil quality for each depth obtained in the test and the N value indicating the result of the standard penetration test; information indicating the location where the test was conducted; the occurrence result of the characteristics of the construction results during pile construction at the location where the test was conducted; and the test result information, the information indicating the location where the test was conducted, and the occurrence result of the characteristics are associated with each other, and the estimation device performs any one or more of the following operations (1) to (3): a data structure of dictionary information. (1) Based on the dictionary information, the estimation device estimates, as the characteristics of the construction results that may occur at the construction site, the information indicating the location where the test was conducted at a location close to the location of the construction site planned for construction included in the on-site information acquired by the estimation device. (2) Based on the dictionary information, the estimation device estimates, as the characteristics of the construction results that may occur at the construction site, the occurrence result of the characteristics corresponding to a soil composition close to the soil composition of the construction site planned for construction included in the on-site information acquired by the estimation device. (3) Based on the dictionary information, the estimation device estimates, as the characteristics of the construction results that may occur at the construction site, the occurrence result of the characteristics corresponding to a change pattern of the N value close to the change pattern of the N value of the construction site planned for construction included in the on-site information acquired by the estimation device. Claim 2. The data structure includes construction condition information, and the test result information, the information indicating the location where the test was conducted, the occurrence result of the characteristics, and the construction condition information are associated with each other, and the estimation device performs the operation of the following (4): the data structure of the dictionary information according to Claim 1. (4) Based on the dictionary information, the estimation device estimates, as the characteristics of the construction results that may occur at the planned construction site, the occurrence result of the characteristics corresponding to the construction condition information close to the construction condition information included in the on-site information acquired by the estimation device.

3. The feature of the construction result is the content of construction troubles, and the data structure of the dictionary information according to claim 1 or 2.

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