First, exquisite well salt mining technology. In Zigong's long history of well salt development, the most amazing thing is a set of ingenious well salt drilling, mining and blasting technologies, especially the deep well drilling technology of percussion drilling used in Zhuotong well in the Northern Song Dynasty and the Qing Dynasty, which pioneered human mechanical sinking and was a major breakthrough in drilling technology, leading the world. This technology was introduced to Europe after 1 1 century, which strongly promoted the development of drilling technology in the world and made outstanding contributions to the progress of human civilization. It is known as the father of modern oil in the world.
Second, rich historical data of well salt economy. The production and management history of Zigong salt industry, like that of Jingdezhen porcelain industry, has always been an issue of interest to scholars studying Chinese economic history at home and abroad. Zigong City has more than 30,000 volumes of historical archives and documents of salt industry, especially the contracts and account books of well salt management collected by the Salt Industry History Museum, which provide precious historical materials for studying the development of well salt commodity economy and the germination and management of salt industry capitalism.
Third, there are many producing areas and sites of well salt. For more than 2,000 years, Zigong salt workers have successively dug more than 3,000 salt wells/kloc-0 in the saltworks, producing more than 70 million tons of salt and more than 30 billion cubic meters of natural gas. Among the many preserved salt wells, besides the famous sites such as Dagong Well, Yangyan Well and Fayuan Well, there are also more famous ones: Dongyuan Well, the world's first deep well over 1,000 meters, Xiaoqiao Well, an ancient well that has been mined for more than 200 years, the highest existing Big Fourteen Well and the newly-built Big six wells Wooden Derrick.
Fourth, the ancient town and street prospered by salt. The development of salt industry and the prosperity of transportation and marketing have brought prosperity to the market towns in Zigong. Up to now, Zigong has retained a certain number of traditional blocks and old streets in Guzhen with complete styles and patterns, such as Zhonghua Road and Xinmin Street in Ziliujing area, Hejie Street and Old Street in Gongjing area, Houjie in Fushun, Dahe Street in Dengjingguan town, Xinhua Street in Zhao Hua town, Huichaikou, Lianggaoshan Old Street and Dashan on Salt Transportation Road. Among these ancient streets, Gongjing Old Street and Hehe Street are the oldest, and they are one of the birthplaces of Gongjing salt production and the city. There are not only the ruins of Dagong Well and Gongjing County, the ancient mule-horse road carrying salt, the ancient stone bridge for pedestrians, the stone river weir where salt boats pass, but also the streets and lanes adjacent to shops, light and simple houses and slate streets. These ancient towns were either produced or developed by salt transportation, and their rise and fall played an important role in salt transportation and marketing.
Fifth, all kinds of salt industry clubs. Since Qingyong and Gansu, with the prosperity of economy, businessmen from all over the world gathered in Ziliujing area to manage salt industry and collect wealth, and raised funds in Ziliujing, Gongjing, Yong 'an and other places to build fellow villagers' associations. At that time, there were many halls, which were spectacular, reflecting the prosperity of Jingyan culture. These halls are flexible, compact and open, with gorgeous architectural decoration. Theater and Tianjie (inner court) constitute the main body of public activity space, full of life breath and Zigong regional interest.
Sixth, the modern salt merchants' houses and gardens. Since the Qing Dynasty, local officials rich in salt have built Da 'an Village in the city and Sanduo Village, a rare giant fortress in the province, in order to prevent rebels or indulge in pleasure. Followed by Bird, Luoyuan, Hou Yuan, Tianlutang, Hu Yuanhe and other private garden houses, halls, pavilions, competing for each other. Garden features.
The technology of pumping salt from wells in Zigong City and Daying County has been passed down for nearly a thousand years, and its technology is still intact, which has become a living fossil of deep wells in the world, and practical measures should be taken to protect it.