122 the monsoon. This ensures that active mine faces and haul roads remain operational and safe. A representative drainage planning layout for Khadia Opencast Project is presented in Figure 7. Figure 7: Drainage Pattern for Khadia opencast project, NCL based on Drone Survey. Source: Northern Coalfields Limited (2024). Major Monsoon Preparation Activities: To combat the challenges posed by monsoons, the following activities are undertaken: 1. Sump Preparation: Construction or deepening of sumps of adequate capacity to collect rainwater and surface runoff. These sumps act as primary water reservoirs for dewatering operations. Typical sump preparation and pontoon-mounted pumping arrangements adopted at Khadia Opencast Project are shown in Figure 8. 2. Pumping Infrastructure: Installation and maintenance of high-capacity pumps to ensure timely evacuation of water from mine pits and low-lying areas, thus avoiding work disruptions (Figure 8).
RkJQdWJsaXNoZXIy MTM0Mzk2