PERENCANAAN KONSTRUKSI PERBAIKAN TANAH PONDASI RESERVOAR DENGAN METODE PVD DAN MICROPILE

Dhuha, Syamsud and Sinarta, I Nengah and Wahyuni, Putu Ika (2013) PERENCANAAN KONSTRUKSI PERBAIKAN TANAH PONDASI RESERVOAR DENGAN METODE PVD DAN MICROPILE. Paduraksa, 1 (1). pp. 1-10. ISSN 2303-2693

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Abstract

Bali Island becoming icon Tourism national and as especial target area of tourism have International scale, Area East Province Bali like Sub‐Province of Karangasem also have tourism potency which is enough enthused by domestic good tourist and also Foreign countries. Therefore required by Integrated management, Concerning infrastructure and also service of requirement of society fundamental to be image as island of tourism international can remain to awake. Pursuant to background above, problem to be lifted in this final duty is 1) How much is H initial or is high of needed to plan get highly of wanted hoard 2) How much is big of compression of land; ground effect of laboring burden above land (of) hoard base? 3) How of planning acceleration of compression of land; ground use which is combined preloading Prefabricated Vertical Channel (PVD) and strengthened with safety factor until 2? Result of research at planning of construction alternative repair of land; ground in Development of reservoir 6500 m3 concluded as follows: 1) Geology consist of two flabby clay coat as thick as which each 8,5 meters and 10 meters limited by sand coat as thick as 4 meters. Value of H initial and Compression (Sc) at which is the each station or dot can be concluded by at distance 0‐15 high m of plan is 9.5 m, distance 15‐30 high m of plan is 10.6 m, distance 30‐45 high m of plan is 11.7 m. 2) Is reckoned from by highest H initial totalize compression (Sc) which must be eliminated is equal to 3.8 m. To eliminate needed by total compression of time 27 week for the phasing of conglomeration 50 cm/week. Method repair of land; ground used to quicken compression is with preloading which is combination with PVD. Used by type of PVD type of Wick Drain widely 100 mm, thick 5 mm. Attached by PVD segi‐3 with pattern apart 1,2 meters of and inches 22.5 meters. 3) For the strength of land; ground by using micropile, used by micropile with dimension 25x25 cm of PT. Beton Elemindo Perkasa. From result of calculation with factor safety until 2, got by requirement of micropile at distance 0‐15 m counted is 47, distance 15‐30 as much as m 38, distance 30‐45 m counted is 30.

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