Perencanaan Bendung Pengelak Waduk Jadi 1 di Tuban

Abstrak

The purpose of this study is to plan the dam to the dam So 1 is to plan the evacuation building consisting of the dam and the flood evaporator to prevent flood water from entering the dam's construction site. and data collection, calculating incoming-origin debits using the Nakayasu method, Calculating outbound debits to overflow with the Maning formula. Determines the height of the evaporator to avoid water debugging, Establishes the stability of the slope so that the evaporator dam is not easily eroded, and draws conclusions and provides advice.The results show that: According to Nakayasu's calculations it is known that peak flood discharge (Q 20 years) is Qp = 402.3 m3 / second. And the result of the flood routing is known as the height of the dam is 10 m. Slope stability of slopes with a slope of 1: 1 was observed at full water, in normal condition 5.86 ≥ 1.5 (safe), in quake 5.27 ≥ 1.1 (safe). Downstream slope stability with a slope of 1: 1 was observed during open water, in normal conditions 9.08 ≥ 1.5 (safe), in quakes 7.78 ≥ 1.1 (safe). Slope stability of slopes with a slope of 1: 1 was observed at low tide, in normal 8.84 ≥ 1.5 (safe), in 7.60 ≥ 1.1 (safe). Slope stability of slopes with a slope of 1: 1.2 was observed at full water, in normal conditions 6.30 ≥ 1.5 (safe), in 5.60 ≥ 1.1 (safe) quakes. Slope stability of slopes with a slope of 1: 1.2 was observed at low tide, in normal condition 9.10 ≥ 1.5 (safe), in 7.70 ≥1 (safe) earthquake. Slope stability of slopes with a slope of 1: 1.5 was observed at full water, in normal condition 6.68 ≥ 1.5 (safe), in 5.70 ≥ 1.1 (safe). Slope stability of slopes with a slope of 1: 1.5 was observed at low tide, in normal condition 8.74 ≥ 1.5 (safe), in quake condition 7.16 ≥ 1.1 (safe).Keywords: Planning; Dodging Dams; Reservoirs.