Page - 958 - in Book of Full Papers - Symposium Hydro Engineering

VISUAL INSPECTION AND ASSESSMENT OF OPERATING DEVICES IN IR. H. DJUANDA DAM - INDONESIA Harry M. SUNGGUH Director II, JASA TIRTA II PUBLIC CORPORATION, INDONESIA Reni MAYASARI Special Expertise Level I of Water Resources Management, JASA TIRTA II PUBLIC CORPORATION, INDONESIA Budi NUGRAHA Special Expertise Level IV of Water Resources & Electric Data Management, JASA TIRTA II PUBLIC CORPORATION, INDONESIA 1. INTRODUCTION Visual inspection is a visual inspection of ground and water inspection objects, such as dam surfaces, auxiliary buildings, ridges and reservoir cliffs, hydro mechanical equipment, instrumentation and so on. Reservoir Manager Ir. H. Djuanda performs visual inspections twice a year for dams located in his working area, which are around May - June at the time of the high water reservoir and November - December at the time the water level is low. Visual inspection conducted includes inspection of dam Ir. H. Djuanda in Purwakarta District. The purpose of the visual inspection work is to find out as early as possible about the current state of the field on dams, complementary buildings and facilities for the purpose of encountering unusual things (anomalies) and / or symptoms that may threaten the safety of the dam so that immediate precautions are taken and risk reduction to the safety and safety of dams. Visual inspection work consists of a series of inspection activities on dam bodies, complementary buildings, hilltop, rim (roving) reservoirs and the surrounding dam environment. Matters inspected during the visual inspection of the dam include cracks, seepage, leaks, basins, springs, burrows, erosion of surface erosion, abrasion scouring, excessive plant growth, top straightness, bulge or slope subsidence or berm, animal burrows of rip-rap quality deterioration as well as other slope protective materials. As for the concrete buildings are examined for cracks, crushing, dissolving, leaking, indication of deterioration of quality or chemical reaction, and or the damage caused by erosion and cavitation, the reliability of construction connections. Based on the method of implementation, the inspection is divided into two types: visual inspection and underwater inspection. Visual inspection is a visual 958