How is the pit in Shanghai Shenkeng Hotel formed? How deep is Shanghai Shenkeng Hotel?

1. The former site of Shenkeng was within the 43-bao-19-map and 21-map-named Wei in Songjiang County, Jiangsu Province. It is located at the foot of Hengshan Mountain in Sheshan Town, Songjiang District. The locals call it Xiaohengshan Mountain. , also known as "Little Chibi Mountain", is connected with Sheshan Mountain, Tianma Mountain, Hengyun Mountain, Xiaokun Mountain, etc. in Zhejiang Tianmu Mountain. In 1902, quarrymen from other places made a living by prying stones here, and the villagers also quarried stones with them, and it gradually became a large-scale business.

2. According to the historical materials provided by the Historical Records Office, "Songjiang County Chronicle" records that in the first year of Xuantong (1909), there were indeed quarries in northern Jiangsu quarrying sporadically at the location of the deep pit for living. Needed, when the Japanese invaders invaded China, the stone quarryers fled. On October 9, 1948, non-local quarryers once again applied to continue mining "Xiao Chibi Mountain". Later, because the stone in "Xiao Chibi Mountain" was harder and the stone in Xiaoji Mountain was soft, they applied again to mine Xiaoji Mountain on October 14. Mountain.

3. After liberation, Songqing Quarrying Company unified its quarrying operations and set up stone rolling factories one and two in Chenshan, Xueshan and Fenghuangshan respectively. In 1957, due to war preparation needs, the stone rolling plants moved to Lushan. In 1959, the Tianma People's Commune set up a quarry in Xiaohengshan. At that time, Xiaohengshan was still a mountain with an altitude of nearly 20 meters. Later, with the needs of urban construction and economic development, the demand for stone materials increased day by day, the excavation area continued to expand, and the depth of the stone pit gradually deepened. The beautiful "Little Chibi Mountain" finally became a pit of more than 80 meters. In 1999, the Municipal Mineral Resources Bureau stopped issuing mining licenses and the Xiaohengshan Quarry was closed.