The main objective of this study announces characteristics of flood control on the Shin River from the viewpoint of flood control history of the Shonai River and comparison of flood diversion channel. The Shin River is the channel which located in the right bank of the Shonai River and flow in the Ise Bay. The results is summarized into 2 points as follows. 1) The Shin River is a special channel which has tributary basin in the type of flood diversion channels like a branch. 2) The flood of tributary basin on the Shin River have been controlled in ring levee. and river land of tributary river at Edo era. This method for controlling flood of tributary was abandoned after Meiji, in addition, the discharge of flood on the Shonai River into the Shin River have been continued.

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At Makinohara-daichi in Shizuoka prefecture, tea was cultivated by the immigrant and reclamation of “Samurai” from 1869. This area is the oldest field of tea production in this prefecture and supported drastic increasing of tea production during Meiji period. Almost all residences had “DOI” in this area during Meiji period, but there are few reports about “DOI”, especially focused civil engineering and architectural history as structure. In this study, the author reported “DOI” remained at Makinohara-daichi and elucidate the building process from the reports. In this result, “DOI” can be evaluated as the modern civil engineering heritage although it is thought that “DOI” was not influence on the modernization of the tea industry.

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At dawn of legislation in Japan when a full-fledged electricity act was not yet aenacted, the Communication Ministry was issuing a permission of electricity business with conditions. The Tokyo Municipal Electricity Bureau was permitted to engage in an electric light power business but it was obligated to use the costly undeiground cable while the Tokyo Dento Co Ltd. previously received the permission with less costly air-borne cable. This paper reports on the case of the Tokyo Municipal Electricity Bureau as a pioneer of the underground wiring in the period from later-Meiji to early Showa Era.

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[in Japanese]

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River works which make use of natural stones and woods and take an enviroment at into consideration are called ‘intimate river works for nature conservation’ and have a tendecy to increase.
The work using with brushwoods is one of works that people have not forcused in recent years.
Kogykusha Civil Alumni Association Magagine mentions the graduates friendship and the study of works and technologies in Meiji era.
There is an essay under the title of ‘Ryushikoushikr’in it.
I had like to focus ‘Ryushikoushiki’ and be help to the execution of Ryushikou after this.

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[in Japanese]

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The Kiso, Nagara and Ibi River, which were flowing on the Central Japan, are known generally as “Kiso Sansen” . To control floods occurring on these rivers, the large-scale river improvement was executed from the year 1754 to 1755 for the Houreki period during the Edo era . The officials of the Tokugawa Shogunate made the plan for this improvement . And the feudal domain of Satsuma paid the expenditure and oversaw the construction work at sites.
In those days, the river improvement works were organized by using the natural materials such as woods and stones. And the planner could not measure using such as modern mathematical theory . Therefore, some plans or constructions were phased checking the change of river flow and bed .
Nowadays, such phased construction is named “Mitameshi” in Japan. And the Japanese traditional river improvement techniques have been used some rivers. The purpose to apply these old techniques is to make the natural circumstances on the river channel. For the circumstances, it is important that engineers check the changing of river flow and bed. However, the phased construction is not used now .
To execute these traditional river improvements and make natural circumstance on Japanese rivers, this study traces the large-scale river improvement of the “Kiso Sansen” during the Houreki period and makes clear the process of the phased construction.

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[in Japanese]

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The coal mining had once prospered in Hokkaido and northern Kyusyu, but the majority of the coal mines were abolished by changing of the energy at the industries, in the old production of coals, the industry and the local societies are now declining.
To enliven them, I have a new plan which uses the rests of old mining establishment.
By the activity of technocrats, the tourism and the commerce are new built up, and they will be advanced.
It seems to be possible to be born there again of the localsociety.

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It is said that the keyword of modernization in the north of Kyushu is Chikuhou coal railroad, harbor, and means of transportation in the harbor. Demand and supply of coal of Chikuhou in particular promoted district advance of thecenter capital and brought advance of Wakamatsu /Moji harbor that was the formation of mainstay railway network to tie up digging of a barge, coal mine shaft and the product departure from a port, the product departure from a port and became base of Japan modernization of the sequel.
We gave the summary from a historic viewpoint about the coal mining industry that became base of Japanese modernization and the formation and development of means of transportation.

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[in Japanese]

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[in Japanese]

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This study tried to make a survey firstly of historical records in civil engineering. The modern civil engineering heritages have already made a survey and estimate by Japan Society of Civil Engineers. On the other side, for these a correct estimate we need to study of material and immaterial historical records in civil engineering.
At the result of this study, we could clear as follows. Firstly, we grasped an outline of material and immaterial historical records in civil engineering. Secondly, we proposed how to approach of these studies Thirdly, we proposed how to preservation and management of their historical records, and made manual these work. Finally, we proposed theirs way of thinking to practical use from this study.

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[in Japanese]

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The “Historical Curvilinear Oblique Weir” was built by Kenzan Nonaka in the Edo era. The shape of those weirs is unique and different from which made in the modern period, some weirs are remaining in Kochi prefecture. By the investigation and analysis of the location of these weirs, I tried to make a hypothesis that is different from the previous one about the design principle of the weir.
In this unique design principle, there is the opinion that it was built along the edge line of the sand bar. On the other hand, there is also a tradition of having been built by the technique of “ito-nagashi” in local Kochi. However, neither of the opinions explains enough about the shape of the weir. The hypothesis shown by this research is, “the weir was built crossing the run where the stabilized height of the river was located, and had a sluice gate in the deep pool of the river.” and I think that it has higher valid than the existing one.

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The Shinsai Fukko Kyoryos or bridges built in reconstruction works after the big earthquake disaster in 1923 at an early stage of Showa facilitated bridge technology in Japan by leaps and bounds. Although many researches have been done on the Shisai Fukko Kyoryos in regards of their importance as historical engineering works with technical values, many of them deal with rather large bridges. This research focuses on small to medium bridges among the Shisai Fukko Koryos, and the fact was clarified through original documentary survey that most of them were designed by means of standard specifications.

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[in Japanese]

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The rapid growth of the Japanese economy has been impacting on the basic city infrastructure including highways, freeways, railroads, subways, houses, public parks, and so on.
However, the construction speed has been slowing down because of the serious negative barriers such as the big increase of the cost, the protection of citizens against the construction and limited land room. Underground space was worthy of note to create room for infrastructure, but the shallow underground space of public areas had already been used for them, A new law was proposed to utilize the deep underground space for the infrastructure after a lot of technical research and a creation of a new concept for the law. This law should have the possibility to accelerate the rapid and effective construction and enhance the future infrastructure base.

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Airports play very important role in the transportation planning in a region. However, it doesn't seem that airport development has been well-correlated with city planning or regional planning in Japan. The purpose of this study is to understand: 1) the process of airport development since the introduction of airplane focusing on the conditions of transportation, 2) characteristics of landuse change of airfield after WWII, 3) history of airport development concept. As a result, the study has shown that there are some clear characteristics of transportation condition according to the era and the main use of airfield, and they affected the change of landuse just after WWII. Also, the study clarified that basic concept of airport development had been kept through WWII.

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[in Japanese]

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In this paper, the author reports the text and its contents of the laws and ordinances relevant to public works and building control established by the Saga domain in the Edo period and clarifies objectives of the provisions. In addition to maintenance enforcement of streets, bridges, canals, trees, and houses of warrior classes, preservation of defense capability and social order of the castle town, restraint of unlawful development on waterfront, and ensuring smooth water flow and water supply are among the objectives of the regulations.

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[in Japanese]

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