| Research Abstract |
In this report, prosperity and decline of the traditional Japanese civil engineering has been studied, that is, what had happened when the modernized superb European engineering was imported since Meiji Era and when the unknown and novel structures begun constructing.
Since situation of the prosperity and decline is presumed to be hugely different due to the structures, they are discussed separately by dividing into various types of structures; that is, traffic, irrigation, electric, sanitary, flood control and military structures. And it was analyzed from various viewpoints ; that is, level of Japanese engineering during the Edo Era, difference of Japanese and European engineering, way of engineering transportation after the Meiji Era, survival of traditional engineering and regional property of engineering.
In Chapter 2, substantial structures are listed in chronological order in every types of structures, and some comments are attached mainly from the viewpoint of transfer of traditio
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nal engineering. Types of structures are as follows ; bridges, tunnels, locks, breakwaters, lighthouses, sluices, dams, water-purification, sabos, dikes and fortresses. Photos are attached if they are surviving.
In Chapter 3, 17 types of structural lists are discussed separately due to three standpoints ; that is, 1) how the demand of the structures had been shifted, 2) how the contents of the engineering had been shifted and 3) how was the regional property of those engineering. The first category is further divided into five sub-category. The second category is further divided into three ; that is, a) traditional engineering had been succeeded without change mainly in the small local structures, b) modernized engineering had been extended onto the traditional ones and c) traditional engineering had weeded out and disappeared. The third category is further divided into two sub-category ; that is, rich and poor regional differences.
By applying the procedure developed and given in this work, civil engineering structures in the modernized era in Japan can be evaluated more deeply. Several examples are attached. Less
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