MEASURING DEVICE, MEASURING SYSTEM, MEASURING METHOD, AND PROGRAM
There is provided a measurement device ( 1020 ) including: a height difference acquisition unit ( 131 ) that acquires a height difference between two points on a bottom surface of a structure; and a material flexural strength calculation unit ( 141 ) that calculates material flexural strength of the structure based on the height difference.
1 . A measurement device comprising a processor configured to execute operations comprising:
acquiring a height difference between two points on a bottom surface of a structure; and
calculating a material flexural strength of the structure based on the height difference.
2 . The measurement device according to claim 1 , further comprising:
storing in advance a set of a vertical displacement of a test structure and material flexural strength of the test structure, the vertical displacement being calculated in advance based on a horizontal strain with respect to a loading load of the test structure simulating the structure; and
generating a function indicating a relationship between the material flexural strength and the vertical displacement of the test structure based on two or more sets of the material flexural strength and the stored vertical displacement,
wherein the calculating further comprises calculating the material flexural strength with respect to the height difference using the function.
3 . The measurement device according to claim 1 , wherein the calculating further comprises calculating the material flexural strength based on an extension direction of a straight line connecting the two points.
4 . A measurement system comprising:
a measurement device comprising a processor configured to execute operations comprising:
calculating a material flexural strength of a structure based on a height difference between two points on a bottom surface of a structure; and measurement equipment,
wherein the measurement equipment includes
a horizontal member,
a first vertical member that is fixed to the horizontal member to be able to move in a vertical direction with respect to the horizontal member and includes a protrusion amount presentation unit indicating a first protrusion amount in the vertical direction; and
a second vertical member that is fixed at a position different from the first vertical member on the horizontal member to be able to move in a vertical direction with respect to the horizontal member, and includes a protrusion amount presentation unit indicating a second protrusion amount in the vertical direction, and
wherein the measurement device acquires the height difference based on the first and second protrusion amounts.
5 . A measurement method comprising:
acquiring a height difference between two points on a bottom surface of a structure; and
obtaining a material flexural strength of the structure based on the height difference.
6 . The measurement method according to claim 5 , further comprising:
calculating a vertical displacement of the structure based on a horizontal strain with respect to a loading load in a loading test of a test structure simulating the structure;
storing a set of a vertical displacement calculated in the vertical orientation calculating step and a material flexural strength of the test structure; and
generating a function indicating a relationship between the material flexural strength and the vertical displacement of the test structure based on two or more sets of the material flexural strength and the stored vertical displacement,
wherein, in the obtaining the material flexural strength of the structure further comprises calculating the material flexural strength with respect to the height difference using the function.
7 . The measurement method according to claim 5 ,
wherein the structure contains retained water, and
wherein in the acquiring further comprises setting a difference between water depths of the two points of the retained water as the height difference.
8 . (canceled)
9 . The measurement device according to claim 1 , wherein the material flexural strength of the material represents a strength of the material.
10 . The measurement device according to claim 1 , wherein the structure is an underground structure, and the structure is at least under soil pressure.
11 . The measurement device according to claim 2 , wherein the structure includes a first resin concrete utility hole made of resin concrete of which strength changes over time, and wherein the test structure includes a second resin concrete utility hole made of resin concrete of which strength changes over time.
12 . The measurement device according to claim 2 , wherein the loading load represents a soil pressure.
13 . The measurement system according to claim 4 , wherein the processor is further configured to execute operations comprising:
storing in advance a set of a vertical displacement of a test structure and material flexural strength of the test structure, the vertical displacement being calculated in advance based on a horizontal strain with respect to a loading load of the test structure simulating the structure; and
generating a function indicating a relationship between the material flexural strength and the vertical displacement of the test structure based on two or more sets of the material flexural strength and the stored vertical displacement,
wherein the calculating further comprises calculating the material flexural strength with respect to the height difference using the function.
14 . The measurement system according to claim 4 , wherein the calculating further comprises calculating the material flexural strength based on an extension direction of a straight line connecting the two points.
15 . The measurement system according to claim 4 , wherein the material flexural strength of the material represents a strength of the material.
16 . The measurement system according to claim 4 , wherein the structure is an underground structure, and the structure is at least under soil pressure.
17 . The measurement system according to claim 13 , wherein the structure includes a first resin concrete utility hole made of resin concrete of which strength changes over time, and wherein the test structure includes a second resin concrete utility hole made of resin concrete of which strength changes over time.
18 . The measurement system according to claim 13 , wherein the loading load represents a soil pressure.
19 . The measurement method according to claim 5 , wherein the structure includes a first resin concrete utility hole made of resin concrete of which strength changes over time.
20 . The measurement method according to claim 5 , wherein the material flexural strength of the material represents a strength of the material, and
the structure is an underground structure, and the structure is at least under soil pressure.
21 . The measurement method according to claim 6 , wherein the loading load represents a soil pressure.