?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PERENCANAAN+BANGUNAN+PENGAMAN+JEMBATAN+DI+DAERAH%0D%0APERBUKITAN+TERHADAP+BAHAYA+LONGSOR+AKIBAT+GERUSAN&rft.creator=ADLINA+MUTIARA+PUTRI%2C+1315011003&rft.subject=Teknologi+(General)&rft.description=ABSTRACT%0D%0A%0D%0AErosion+is+one+of+the+natural+phenomena+that+cause+large+losses.+Increasing%0D%0Apopulation+is+creating+the+need+for+housing+increases+and+changes+in+land+use.%0D%0ARainwater+will+continuously+excessive+seep+into+the+ground%2C+causing+an+increase%0D%0Ain+the+weight+of+the+soil.+And+the+resulting+shift+and+scouring+material+formed%0D%0Afrom+the+process+flow+instabilities+increasingly+large.+Therefore%2C+we+need+to+plan%0D%0Athe+security+building.+This+study+aimed+to+analyze+the+planning+and+building%0D%0Asecurity+to+overcome+the+erosion+danger+result+to+scour.%0D%0AThis+research+conducted+hydrological+analysis+with+maximum+rainfall+data+CH%0D%0ACisomang+from+2001+to+2015.+Having+obtained+the+rain+discharge+plan%2C+an%0D%0Aanalysis+of+hydraulics+to+analyze+the+protection+structure+is+groundsill.+Calculation%0D%0Aof+the+shear+and+the+bolsters.+Furthermore%2C+the+hydraulic+planning+to+do+for+an%0D%0Amegrim+and+scour.%0D%0AValue+rain+discharge+for+return+period+of+100+years+with+a+rational+method+values%0D%0Aobtained+226%2C8385+m%0D%0A3%0D%0A%2Fsec.+Rainfall+intensity+values+obtained+with+Mononobe%0D%0Aformula+for+return+period+of+100+years+at+17%2C4336+mm+%2F+hour.+Watershed+drainage%0D%0Acoefficient+obtained+at+0%2C7260+with+a+basin+area+232%2C0086+km%0D%0A2.+Groundsill+secure%0D%0Aagainst+the+danger+of+sliding+and+rolling.+Megrim+pool+type+that+is+USBR+type+IV%0D%0Awith+Froude+number+3%2C8328+and+need+secure+against+scour.+Based+on+the+analysis%0D%0Aperformed%2C+it+was+concluded+that+the+appropriate+safeguards+are+building%0D%0Agroundsill.%0D%0AKeywords%3A+erosion%2C+scouring%2C+groundsill.%0D%0A%0D%0AABSTRAK%0D%0A%0D%0ALongsor+merupakan+salah+satu+fenomena+alam+yang+menimbulkan+kerugian+besar.%0D%0ABertambahnya+jumlah+penduduk+menyebabkan+kebutuhan+akan+pemukiman%0D%0Abertambah+dan+perubahan+tata+guna+lahan.+Air+hujan+akan+terus-menerus+meresap%0D%0Asecara+berlebihan+ke+dalam+permukaan+tanah+sehingga+menyebabkan%0D%0Abertambahnya+bobot+tanah.+Dan+mengakibatkan+terjadinya+pergeseran+material%0D%0Adan+gerusan+yang+terbentuk+dari+proses+ketidakstabilan+aliran+semakin+lama%0D%0Asemakin+besar.+Oleh+karena+itu%2C+perlu+dilakukan+perencanaan+bangunan%0D%0Apengaman.+Penelitian+ini+bertujuan+untuk+merencanakan+dan+menganalisis%0D%0Abangunan+pengaman+untuk+mengatasi+bahaya+longsor+akibat+gerusan.%0D%0ADalam+penelitian+ini+dilakukan+analisis+hidrologi+dengan+data+curah+hujan%0D%0Amaksimum+CH+Cisomang+dari+tahun+2001+sampai+2015.+Setelah+diperoleh+debit%0D%0Ahujan+rencana%2C+dilakukan+analisis+hidrolika+untuk+menganalisis+bangunan%0D%0Apengaman+yaitu+groundsill.+Perhitungan+terhadap+gaya+geser+dan+guling.%0D%0ASelanjutnya+dilakukan+perencanaan+hidrolis+dilakukan+untuk+kolam+olak+dan%0D%0Agerusan.%0D%0ANilai+debit+hujan+untuk+kala+ulang+100+tahun+dengan+metode+rasional+diperoleh%0D%0Anilai+226%2C8385+m%0D%0A3%0D%0A%2Fdetik.+Diperoleh+nilai+intensitas+hujan+dengan+rumus+Mononobe%0D%0Auntuk+kala+ulang+100+tahun+sebesar+17%2C4336+mm%2Fjam.+Koefisien+pengaliran+pada%0D%0ADAS+diperoleh+sebesar+0%2C7260+dengan+luas+DAS+232%2C0086+km%0D%0A2%0D%0A.+Groundsill+aman%0D%0Aterhadap+bahaya+geser+dan+guling.+Tipe+kolam+olak+yaitu+USBR+tipe+IV+dengan%0D%0Abilangan+Froude+3%2C8328+dan+perlu+pengamanan+terhadap+gerusan.+Berdasarkan%0D%0Aanalisis+yang+dilakukan%2C+disimpulkan+bahwa+bangunan+pengaman+yang+tepat+yaitu%0D%0Agroundsill.%0D%0AKata+kunci+%3A+longsor%2C+gerusan%2C+groundsill&rft.publisher=UNIVERSITAS+LAMPUNG&rft.date=2017-05-03&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27200%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27200%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F27200%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++ADLINA+MUTIARA+PUTRI%2C+1315011003++(2017)+PERENCANAAN+BANGUNAN+PENGAMAN+JEMBATAN+DI+DAERAH+PERBUKITAN+TERHADAP+BAHAYA+LONGSOR+AKIBAT+GERUSAN.++UNIVERSITAS+LAMPUNG%2C+FAKULTAS+TEKNIK.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F27200%2F