Skip shaft, chute and drainage system project of Jiangfeng iron mine of Yunnan Jinghong Longxin Mining Co., Ltd

Project Name: skip shaft, chute and drainage system project of Jiangfeng iron mine of Yunnan Jinghong Longxin Mining Co., Ltd

Project location: Menglong Town, Jinghong City, Xishuangbanna Prefecture, Yunnan Province

Project Profile:

1. Excavation and construction of skip shaft and auxiliary shaft: the shaft project of Longxin Mining Co., Ltd. mainly includes excavation and construction of skip shaft and auxiliary shaft. The wellhead elevation of skip shaft is + 742.000m, the bottom elevation is - 20m, and the shaft depth is 762m. The wellhead elevation of auxiliary shaft is + 741.000m, the bottom elevation is - 50m, and the shaft depth is 791m. The net diameter of the two wells is Φ 4.5m, the total excavation volume is 44555m3, the total support volume is 9352m3, and the reinforcement volume is 357.7t.

2. Skip shaft sliding system: the project includes ore unloading station, large shaft channel, large shaft (net diameter of ф 3600, depth of 39.825m), safety shaft (square shaft with net section of 2.0m * 2.0m, depth of 72.743m, 200 mm concrete support), ore chute (total depth of 33.57m, lined with steel rail and steel plate), + 56m crushing station (net length of 19.54m, net width of 8.5m, net height of 12.833m, height of 4.5m) Reinforced concrete support, substation chamber, large passage, return air passage, connecting passage of crushing station, fine ore recovery roadway, etc. Finished product ore bin, belt transfer drift, gangway, belt loading chamber, bottom powder mine roadway and drainage system engineering. Total quantities: excavation 7926m3, support 1300m3, steel structure 71t.

Project status: completed