perhitungan produktifitas alat berat

TUGAS

ANALISA BEBAN DAN TENAGA

1. Diketahui : 1.Kelandaian ( K ) = 5%2.Koef. Tahanan Gelinding ( r ) = 5%3.Berat Traktor ( W ) = 26 ton4.Berat Scraper ( W ) = 16 ton5.Muatan Scraper = 4 ton

Ditanyakan : Berapa besar tenaga yang dibutuhkan untuk menarik scraper ?

K = 5% Jawab :

Tenaga yang dibutuhkan = Beban Total ( TR )

1. Traktor ( Roda Rantai )

TR = Tahanan Kelandaian (GR) = W x % K = 1.3 ton

2. Scraper ( Roda Karet )

TR = Tahanan Kelandaian (GR) + Tahanan Gelinding (RR) = ( W x % K ) + ( W x % r ) = 2 ton

Jadi tenaga yang dibutuhkan traktor adalah = 3.3 ton

2. Diketahui : 1.Kelandaian ( K ) = 8%2.Harraw ditarik pada datar = 4500 kg3.Berat Bulldozer ( W ) = 18 ton4.Berat Harraw ( W ) = 4 ton5.Koef. Traksi Kritis ( ct ) = 0.65

K = 8% Ditanyakan : Mampukah Bulldozer menarik harraw ?

Jawab :

1. Bulldozer ( Roda Rantai )

TR = Tahanan Kelandaian (GR) = W x % K = 1.44 ton

2. Scraper ( Roda Rantai )

TR = 4500 kg + Tahanan Kelandaian (GR) = 4500 kg + ( W x % K ) = 4.82 ton

Tenaga yang dibutuhkan Bulldozer (TR) = 6.26 ton

Traksi Kritis Bulldozer (TK) = W x ct = 11.7 ton

TK > TR = Mampu

TRAKTOR

SCRAPER

BULLDOZER

HARRAW

Latihan 1

Proyek jalan raya

= 24

STA 00 STA 6000

galian timbunan galian timbunan galian

Diketahui :a. Data Pekerjaan & alat b. Kondisi Tanah

Galian 1. Tanah Biasa = 0.83p = 4000 m 2. Sweel = 20%t = 1.8 m

Timbunanp = 2000 mt = 1.2 m

1. Alat Bulldozer type s =2. Lebar blade = 3.2 m3. Tinggi blade = 1.1 m4. Biaya Pemblian = Rp19,000,000,0005. Nilai Sisa = 10%6. Waktu Investasi = 8 thn7. Masa guna alat = 10000 jam8. Biaya Operasional = Rp900,0009. Biaya Investasi = 18% dari harga pembelian

= Rp3,420,000,000

c. Metode kerja1 Metode kerja = Slot and Dozing2 Waktu kerja 50 menit/jam =3 Operator Pandai = 0.834 V mendorong = 4.5 km/jam = 75 m/menit5 V mundur = 6 km/jam = 100 m/menit6 Bekerja waktu kemarau =7 Durasi 20 hari @ 7 jam = 140 jam8 Perataan timbinan perlapis = 0.3 m

Ditanyakan : 1 Produksi alat dalam 1 jam ( Q )2 Hitung jumlah alat3 Biaya aktual apabila profit 10%4 HSP pekerjaan5 Biaya penawaran dengan pajak 15%6 Jadwal

Jawab : GALIAN● Volume Pekerjaan Galian ( bank ) = 172800● sweel = 20%● Volume Pekerjaan Galian ( loose ) = 207360● Kapasitas Blade ( B ) = 3.872● Jarak Operasi Blade , dengan kedalaman = 60.5 m

0.02 m ( J )● CT = 1.412 menit● E = 0.82

1 Q = Q' x EQ' = 60 x B

CT = 232.32 = 164.5714

1.412Q = 134.9486 Lm³/jam

2 Durasi Alat = 207360134.948571428571 Lm³/jam

= 1537 Jam

Jumlah Alat = 1537 Jam140 Jam

Jumlah Alat = 10.97561 ~ 11 UNIT

3 BP● Depresiasi / jam = Rp1,710,000● Investasi / jam = Rp342,000 +

BP = Rp2,052,000 /jam

O = Rp900,000 /jam +

BP & O = Rp2,952,000 /jam

Biaya Aktual = Vol. Loose x BP & OQ

= 207360 x Rp2,952,000134.949

= Rp4,536,000,000Profit 10 % = Rp453,600,000 +Biaya Aktual = Rp4,989,600,000

4 HSP Pekerjaan = Biaya act + profit Rpvol . Bank

= Rp4,989,600,000 Rp172800

m³

Lm³Lm³

Lm³/jam

Lm³

m³

m³

HSP Pekerjaan = Rp28,875 Rp/m³

5 Harga Penawaran = Biaya Actual + Profit + Pajak 15% = Rp4,989,600,000 + Rp748,440,000

Harga Penawaran = Rp5,738,040,000

TIMBUNAN● Volume Pekerjaan Galian ( bank ) = 57600● sweel = 20%● Volume Pekerjaan Galian ( loose ) = 69120● Kapasitas Blade ( B ) = 3.872● Jarak Operasi Blade , dengan kedalaman = 4.033 m

0.3 m ( J )● CT = 0.094 menit● E = 0.82

1 Q = Q' x EQ' = 60 x B

CT = 232.32 = 2468.571

0.094Q = 2024.229 Lm³/jam

2 Durasi Alat = 691202024.2285714286 Lm³/jam

= 34 Jam

Jumlah Alat = 34 Jam140 Jam

Jumlah Alat = 0.243902 ~ 1 UNIT

3 BP● Depresiasi / jam = Rp1,710,000● Investasi / jam = Rp342,000

BP = Rp2,052,000

O = Rp900,000

BP & O = Rp2,952,000

Biaya Aktual = Vol. Loose x BP & OQ

= 69120 x Rp2,952,0002024.229

= Rp100,800,000Profit 10 % = Rp10,080,000 +Biaya Aktual = Rp110,880,000

4 HSP Pekerjaan = Biaya act + profit Rpvol . Bank

= Rp110,880,000 Rp57600

m³

Lm³Lm³

Lm³/jam

Lm³

m³

m³


Pajak 15% 5 Harga Penawaran = Biaya Actual + Profit +Rp748,440,000 = Rp110,880,000 +

Harga Penawaran = Rp127,512,000

+/jam

/jam +/jam

Pajak 15%Rp16,632,000

Latihan 2

4.47 CL4 m

2 : 1

2.5 m

Diketahui : 1. Data alat● Excavator PC 180 =● Kapasitas ( q ' ) = 0.85

2. Data pekerjaan ● panjang galian = 2000 m● tanah biasa ( K ) = 1.1● sweel = 20%● digging condition 60 % = 1● = 15 detik● Koefisien efesiensi ( E ) "good" = 0.83● Durasi 30 hari @ 7 jam kerja = 210 jam● BP & O = Rp1,200,000

Ditanyakan : 1. Produksi alat dalam 1 jam ( Q )2. Hitung jumlah alat3. Biaya aktual apabila profit 10%4. HSP pekerjaan5. Biaya penawaran dengan pajak 15%6. Jadwal

Jawab : 1. Volume pekerjaan galian ( bank ) = 22350Volume pekerjaan galian ( loose ) = 26820

Q = Q ' x E

Q' = 60 x qCT (menit )

q = q ' x K

Q = 46.5630.25

m³

swing angle 70°

m³Lm³

Q = 186.252

2. Durasi alat = 26820186.252 Lm³/jam

= 143.998 Jam

Jumlah Alat = 143.998 Jam210 Jam

Jumlah Alat = 0.6857069224185 ~ 1 UNIT

3. Biaya Aktual = Vol. Loose X BP & OQ

= 26820 X Rp1,200,000186.252

= Rp172,798,144Profit 10% = Rp17,279,814 +Biaya Aktual = Rp190,077,959

4. HSP pekerjaan = Biaya act + profit Rpvol . Bank

= Rp190,077,959 Rp22350

HSP pekerjaan = Rp8,505

5. Harga Penawaran = Biaya actual + Profit + = Rp190,077,959 +


Lm³/jam

Lm³

m³

m³Rp/m³

Pajak 15 %Rp28,511,694

Latuhan 3

Tanah

12 m

12 m

Diketahui : a. Data pekerjaan & alat1 = 138240

2 Bucket Kapasitas ( q ' ) = 3.43 Faktor Bucket ( K ) = 0.954 BP & O = Rp1,250,000 /Jam5 FT = 0.2 menit6 Koefisien efesiensi ( E ) "good" = 0.83

b. Metode kerja1 V shape ,dengan jarak = 12 m2 kecepatan isi = 2.5 km/jam = 41.6673 kecepatan kosong = 4 km/jam = 66.6674 waktu 30 hari @ 7 jam = 210 jam

Ditanyakan : 1. Produksi alat dalam 1 jam ( Q )2. Hitung jumlah alat3. Biaya aktual apabila profit 10%4. HSP pekerjaan5. Biaya penawaran dengan pajak 15%6. Jadwal

Jawab : 1. CT = J1 = J2 = 2J

+ 2J + FTkecp. Isi kecp. Kosong

Pengangkutan tanah dengan Vol. Pekerjaan 2/3 dari hasil galian bulldozer

Lm³

m³

WL

DT

= 0.576 + 0.36 + 0.2 = 1.136 menit

volume pekerjaan ( bank ) = 115200sweel = 20%volume pekerjaan ( loose ) = 138240

Q = Q ' x E

Q' = 60 x qCT (menit )

q = q ' x K

Q = 160.8541.136

Q = 141.597

2. Durasi alat = 138240141.597

= 976.293 jam

Jumlah alat = 976.293 jam210 jam

Jumlah alat = 4.6490144567656 ~ 5

3. Biaya Aktual = Vol. Loose X BP&OQ

= 138240 X Rp1,250,000141.597

= Rp1,220,366,295Profit 10% = Rp122,036,629 +Biaya Aktual = Rp1,342,402,924

4. HSP Pekerjaan = Biaya Act. + profit RpVol. Bank

= Rp1,342,402,924 Rp115200

HSP Pekerjaan = Rp11,653 Rp/jam

5. Harga Penawaran = Biaya Act. + Profit = Rp1,342,402,924

Harga Penawaran = Rp 1,543,763,363

m³

Lm³

Lm³/jam

Lm³Lm³/jam

m³

m³

m/menitm/menit

UNIT

Rp1,250,000

Profit + Pajak 15%Rp1,342,402,924 + Rp 201,360,439

Latihan 4

10%

750 m

600 m

Diketahui : 1. Data Alat● Dump Truck HD 325● Berat Kosong = 27.2 ton● Berat Bermuatan Max = 52.3 ton● Batasan Kacapatan = V max Flat = Isi = 40

Kosong = 60

= = Isi = 20Kosong = 40

● Sewa Dump Truck = Rp2,100,000 /hari = Rp262,500

2. Data Pekerjaan● Volume Pekerjaan = 115200

= 138240● Route Pengangkutan = Membawa sama dengan kembali● Kondisi Jalan = Kering dan kurang terpelihara =● = 1.6● Managemen Baik =● Dumping = Lancar Tanpa Ada Hambatan● Spot & Delay = Lancar Tanpa Ada Hambatan

Ditanyakan : 1 Produksi alat dalam 1 jam ( Q )2 Hitung Durasi3 Biaya aktual apabila profit 10%4 HSP pekerjaan5 Biaya penawaran dengan pajak 15%6 Jadwal

Jawab : 1 CT = T1 + T2 + T3 + T4 + T5Tabel T2 dan T4

T1 = n X CT wheel loader tipe angkutSegmen

V max Turunan/ tanjakan

m³lm³

γ Tanah ton/m³

DUMP TRUCK

n = q DT ( kg )tipe angkut

kondisi

Membawa (isi)Datar

n = (52,3 t - 27,2 t )x 1000 Tanjakan3,4 x 0,95 x 1600 Datar

n = 25100 Datar5168 Turunan

n = 4.85681115 ~ 5 Datar

T1 = 5 x 1,136 menit T3 = 0.6T1 = 5.68 menit T5 = 0.15

CT = T1 + T2 + T3 + T4 + T5CT = 8.69 menit

M = CT dtn X CT wl

M = 8.695.68

M = 1.53 ~ 2 unit

Q = Q' x E x M E ( GOOD ) = 0.83Q' = 60 x q DT

CTq DT = n x q L

Q' = 60 x 9 x 3,48.69

Q' = 46.95

Q = 194,48 x 0,83 x 9Q = 77.93

2 Hitung Durasi

Volume ( Bank ) = 115200Sweel = 20%Volume ( Loose ) = 138240

Waktu Pelaksanaan = Vol. looseQ

= 13824077.93

= 1773.88 jam

Waktu Pelaksanaan = 253.41 Hari ~ 254 Hari

3. Biaya Aktual = Vol. Loose x BP & O

q WL x K x γt

Kembali ( kosong )

Lm³/jam

Lm³/jam

m²

Lm³

Qx BP & O

= 138240 x Rp262,50077.931


4. HSP Pekerjaan = Biaya act + profit Rpvol . Bank

= Rp512,208,405 Rp115200


5. Harga Penawaran = Biaya Actual + Profit = Rp512,208,405


m³

m³

350 m

Km/jam = 667 m/menitKm/jam = 1000 m/menit

Km/jam = 333 m/menitKm/jam = 667 m/menit

/jam

8%

Produksi alat dalam 1 jam ( Q )Hitung DurasiBiaya aktual apabila profit 10%HSP pekerjaanBiaya penawaran dengan pajak 15%Jadwal

Segmen tahanan kecepatanTime

kondisi jarak RR GR TR F Vmax SF V rata2Time

Datar 600 8% 0% 8% 667 0.72 480

1.393443T2Tanjakan 750 8% 10% 18% 333 0.78 260

Datar 350 8% 0% 8% 667 0.72 480Datar 600 8% 0% 8% 1000 0.72 720

0.867347

T4Turunan 750 8% -10% -2% 667 0.78 520

Datar 350 8% 0% 8% 1000 0.72 720

menitmenit

Hitung Durasi

BP & O

BP & O

Rp262,500

Profit + Pajak 15%Rp512,208,405 + Rp76,831,261

Latihan 5Return

Houling

Diketahui : 1. Data Alat● Kapasitas bowel (q ) = 10● Kecp. Digging (VD) = 1.5 km/jam = 25● Kecp. Houling (VH) = 10 km/jam = 166.6667● Kecp. Spreading (VS) = 3 km/jam = 50.00● Kecp. Returning (VR) = 12 km/jam = 200

2. Data Pekerjaan● Jarak Digging (D) = 35 m● Jarak Houling (H) = 175 m● Jarak Spreading (S) = 25 m● Jarak Returning (R) = 200 m● Vulome Galian = 500000● Volume Urugan = 500000● Banyak Alat = 5 Unit● BP & O = Rp1,500,000 per jam● FT = 1

Ditanyakan : 1. Produksi alat dalam 1 jam ( Q )2. Hitung waktu pelaksanaa3. Biaya aktual apabila profit 10%4. HSP pekerjaan5. Biaya penawaran dengan pajak 15%6. Jadwal

Dijawab : 1. CT =

CT = 35 +

175 +

25 +

25 166.67 50.00CT = 4.95 menit

m³

m³m³

digspred

35 m

25 m

175 m

200 m

𝐷𝑉𝐷 + 𝐻𝑉𝐻 + 𝑆𝑉𝑆+ 𝑅𝑉𝑅 + FT

E = E1 X E2 X E3 Dimana : E1 = Waktu Kerja 50m/jE = 1.008 E2 = Operator Baik

E3 = Tanah Biasa

Q' = 60 X qCT

Q' = 6004.95

Q' = 121.2121212 Lm³/jam

Q' = Q' X EQ = 122.1818182 Lm³/jam

2. Volume ( Bank ) = 500000Sweel = 20%Volume ( Loose ) = 600000

Waktu Pelaksanaan = Vol. looseQ

= 600000122.18

= 4910.71 jam / 5 unit = 982.14 per unit

Waktu Pelaksanaan = 140.31 Hari ~ 141

3. Biaya Aktual = Vol. Loose x BP & OQ

= 600000 x Rp1,500,000122.182

= Rp7,366,071,429Profit 10 % = Rp736,607,143 +Biaya Aktual = Rp8,102,678,571


= Rp8,102,678,571 Rp500000


5. Harga Penawaran = Biaya Actual + Profit = Rp8,102,678,571

Harga Penawaran = Rp9,318,080,357

m³

Lm³

m³

m³

m/menitm/menitm/menitm/menit

200 + 1

200

𝐷𝑉𝐷 + 𝐻𝑉𝐻 + 𝑆𝑉𝑆+ 𝑅𝑉𝑅 + FT

= 0.84 = 1 = 1.2

Hari

BP & O

Rp1,500,000

Profit + Pajak 15%Rp8,102,678,571 + Rp1,215,401,786

lo

6 L leα

6

6000

Diketahui : 1. Data Alat● Lebar Blade ( L ) = 3.1 m● =● Kecepatan rata2 = 4 km/jam =● BP & O / jam = Rp2,200,000● Jumlah alat = 1 unit

2. Data Pekerjaan● Lebar lapisan = 12 m● Laluan Subgrade (n) = 6 kali● Laluan sub base (n) = 4 kali● Laluan base course (n) = 3 kali● Lebar overlap (lo) = 0.25 m● E faktor ( good ) = 0.83


SUBGRADEDijawab : 1. Q = Q' X E

Q' = 60 X V .( le - lo ) le =n le = sin 60 x 3,1

Q' = 60 x 66,67 . ( 2,68 - 0,25 ) le = 2.686

Q' = 97206

Q' = 1620.00

Q = 1620 x 0,83Q = 1344.60

2. Luas Perataan = 72000

Sudut Kerja ( α ) 60 °

sin α x L

m²/jam

m²

Waktu Pelaksanaan = LuasQ

= 720001344.60

= 53.55 jam = 53.55 per unit

Waktu Pelaksanaan = 7.65 Hari ~

3. Biaya Aktual = Luas xQ

= 72000 x1344.600


4. HSP Pekerjaan = Biaya act + profit RpLuas

= Rp129,585,007 Rp72000

HSP Pekerjaan = Rp1,800

5. Harga Penawaran = Biaya Actual + = Rp129,585,007


m²

m²Rp/m²

66.67 m/menit

SUB BASE1. Q =

Q' =sin 60 x 3,1

m Q' =

Q' =

Q' =

Q =Q =

2. Luas Perataan

Waktu Pelaksanaan

8 Hari Waktu Pelaksanaan

BP & O 3. Biaya Aktual

Rp2,200,000

Profit 10 %Biaya Aktual

4. HSP Pekerjaan

HSP Pekerjaan

Profit + Pajak 15% 5. Harga PenawaranRp129,585,007 + Rp19,437,751

Harga Penawaran

Q' X E60 X V .( le - lo ) le =

n le = sin 60 x 3,160 x 66,67 . ( 2,68 - 0,25 ) le = 2.68 m

49720

42430.00

2430 x 0,832016.90

Luas Perataan = 72000

sin α x L

m²/jam

m²


= 720002016.90

= 35.70 jam = 35.70 per unit


Biaya Aktual = Luas x BP & OQ

= 72000 x Rp2,200,0002016.900


HSP Pekerjaan = Biaya act + profit RpLuas

= Rp86,390,004 Rp72000

HSP Pekerjaan = Rp1,200

Harga Penawaran = Biaya Actual + Profit + = Rp86,390,004 +


m²

m²Rp/m²

BASE COURSE1. Q = Q' X E

Q' = 60 X V .( le - lo )n

Q' = 60 x 66,67 . ( 2,68 - 0,25 )3

Q' = 97203

Q' = 3240.00

Q = 3240 x 0,83Q = 2689.20


m²/jam


= 720002689.20

= 26.77 = 26.77

Waktu Pelaksanaan = 3.82

3. Biaya Aktual = LuasQ

= 720002689.200

= Rp58,902,276Profit 10 % = Rp5,890,228Biaya Aktual = Rp64,792,503

4. HSP Pekerjaan = Biaya act + profitLuas

= Rp64,792,50372000

HSP Pekerjaan = Rp900

Pajak 15% 5. Harga Penawaran = Biaya ActualRp12,958,501 = Rp64,792,503


le =le = sin 60 x 3,1le = 2.68 m

sin α x L

m²

jamper unit

Hari ~ 4 Hari

Luas x BP & OQ

72000 x Rp2,200,0002689.200

Rp58,902,276Rp5,890,228 +

Rp64,792,503

Biaya act + profit RpLuas

Rp64,792,503 Rp72000Rp900

Biaya Actual + Profit + Pajak 15%Rp64,792,503 + Rp9,718,876

Rp74,511,379

m²

m²Rp/m²

Diketahui : 1. Data Alat● Lebar roda (w) = 2 m● Kecp. Rata2 = 3 km/jam =● Overlap (wo) = 0.3 m● BP & O = Rp2,000,000 /jam

2. Data Pekerjaan● Laluan Subgrade = 4 kali● Laluan Subbase = 3 kali● Laluan Base course = 3 kali


SUBGRADEDijawab : 1. Q= Q' X E

Q'= 1000 . V . ( w - Wo )n

Q'= 850004

Q'= 21250

Q= Q' X E E faktor ( good ) =Q= 21250 x 0,83Q= 17637.5



= 7200017637.50

= 4.08 jam = 4.08 per unit



= 72000 x17637.500

= Rp8,164,422

m²/jam

m²/jam

m²

Profit 10 % = Rp816,442 +Biaya Aktual = Rp8,980,865


= Rp8,980,865 Rp72000




m²

m²/m²

50 m/menit

SUB BASE1. Q=

Q'=

Q'=

Q'=

0.83 Q=Q=Q=

2. Luas Perataan

Waktu Pelaksanaan

1 Hari Waktu Pelaksanaan

BP & O 3. Biaya Aktual

Rp2,000,000

Profit 10 %Biaya Aktual

4. HSP Pekerjaan

HSP Pekerjaan

Profit + Pajak 15% 5. Harga PenawaranRp8,980,865 + Rp1,347,130

Harga Penawaran

Q' X E1000 . V . ( w - Wo )

n85000

328333.33

Q' X E E faktor ( good ) = 0.8328333,3 x 0,8323516.67

Luas Perataan = 72000


= 7200023516.67

= 3.06 jam = 3.06 per unit


Biaya Aktual = Luas x BP & OQ

= 72000 x Rp2,000,00023516.667

= Rp6,123,317

m²/jam

m²/jam

m²


HSP Pekerjaan = Biaya act + profit RpLuas

= Rp6,735,648 Rp72000


Harga Penawaran = Biaya Actual + Profit + Pajak 15% = Rp6,735,648 + Rp1,010,347


m²

m²Rp/m²

BASE COURSE1. Q= Q' X E

Q'= 1000 . V . ( w - Wo )n

Q'= 850003

Q'= 28333.33

Q= Q' X E E faktor ( good ) =Q= 28333,3 x 0,83Q= 23516.67



= 7200023516.67

= 3.06 jam = 3.06 per unit



= 72000 x23516.667

= Rp6,123,317

m²/jam

m²/jam

m²



= Rp6,735,648 Rp72000


Pajak 15% 5. Harga Penawaran = Biaya Actual +Rp1,010,347 = Rp6,735,648


m²

m²Rp/m²

0.83

1 Hari

BP & O

Rp2,000,000

Diketahui : 1. Data Alat● Lebar roda (w) = 3 m● Kecp. Rata2 = 2.5 km/jam =● BP & O = Rp2,500,000 /jam

2. Data Pekerjaan● Tebal = 5 cm


Dijawab : 1. Q = Q' X EQ' = 60 X V X WQ' = 60 X 41,67 X 3Q' = 7500

Q = Q' X E E faktor ( good ) =Q = 7500 X 0,83Q = 6225

2. Luas Permukaan = 72000


= 720006225.00

= 11.57 jam = 11.57 per unit



= 72000 x6225.000



= Rp31,807,229 Rp72000

m²/jam

m²/jam

m²

m²

m²




m²

41.66667 m/menit

0.83

2 Hari

BP & O

Rp2,500,000

Pemancangan pada abutmen jembatan dengan data sebagai berikutDiketahui : 1. Data Tiang Pancang

● Ukuran = 14 inchi x 14 inchi● Panjang = 50 Ft● Bj Beton = 150 Cuft/ton● Jumlah 1 abutmen = 36 batang ● Berat Pondasi ( P ) = ton● BP & O = Rp 5,000,000 /jam● Daya dukung pondasi = 40 ton● Faktor keamanan = 1.2

2. Data Hammer● Type Vulcan size 1 (SAS)● Waktu setting = 10 menit● BP & O = Rp 5,000,000 /jam● Berat Hammer (w) = 9700 lbs● Tinggi Jatuh Hammer ( h ) = 36 inches● Faktor Hammer (e) = 0.8● Nilai Restritusi (k) = 0.25

Ditanyakan : 1. Apakah Hammer sudah memadai ? Jika tidak , tentukan hammer yang memadai .2. Hitung waktu untuk memancang tiap batang !3. Hitung untuk semua pek. Pemancangan .4. Hitung biaya pek. Pemancangan .5. Hitung HSP6. Hitung biaya penawaran.

Ditanyakan :→Energi yang dihasilkan hammer

E= e x w x hE= 0,8 x 9700 x 36E= 279360 inch-lb

→Energi yang hilang● akibat pukulan (I)

I = e x w x h x p x w + p

I = 0,8 x 9700 x 36 x 8166,67 x9700 + 8166,67

I = 119711.78 inch-lb

● akibat head tiang pancang (CL)U = daya dukung pondasi x faktor keamananU = 240000 x 1,2

1 - k²

1 - 0,25²

U = 288000

CL = U x C 1 C1 = tekanan izin sementara kepada kepala tiang dan cap2 C1 = 0.01

CL = 288000 x 0,3942

CL = 113385.832

CL = 56692.91

● akibat tiang pancang (PL)PL = U x C 2 C2 = simpanan tiang akibat tekana izin sementara

2 C2 = 0.005PL = 288000 x 0,197

2PL = 56692.91

2.00PL = 28346.46

● akibat ujung tiang pancang (SL)SL = U x C 3 C3 = tekanan izin sementara

2 C3 = 0.003SL = 288000 x 0,118

2SL = 34015.75

2SL = 17007.87

→Energi bersih yang dapat digunakanUS = e x w x h - I - CL - PL - SLUS = 279360 - 119711,78 -56692,91 - 28346,46 - 17007,87

1. US = 57600.98 hammer memadai

S = US / US = 57600,98 / 288000S = 0.200 inchiS = 0.0051 meter

T = Le Le = 2/3 dari LS x V xFo Le = 33.33

T = 10.16 Le = 10.160,0051 x 60 x 0,83 V = 60

T = 40.16 Menit Fo = 0.83

2. →Waktu yang dibutuhkan untuk memancang 1 tiang pancang adalah =

3. →Waktu yang dibutuhkan untuk memancang semua tiang pancang adalah =

4. Biaya pemancangan = waktu pek. Pemancangan X BP&O= 30,10 jam X Rp. 5.000.000/jam= Rp 150,479,886.44

Profit 10% = Rp 15,047,988.64 +Biaya pemancangan = Rp 165,527,875.09

5. HSP Pekerjaan = Biaya act + profit RpJumlah tiang pancang

= Rp165,527,875 Rp36

HSP Pekerjaan = Rp4,597,997 /batang



m²

m²

=

= 8166.67 lb

= 240000 lb

Apakah Hammer sudah memadai ? Jika tidak , tentukan hammer yang memadai .

tekanan izin sementara kepada kepala tiang dan capm 0.394 Inchi

simpanan tiang akibat tekana izin sementaram 0.197 Inchi

tekanan izin sementaram 0.118 Inchi

ftmeter

50.16 menit

30.10 jam


UNIT PRICE ANALYSIS

ITEM NUMBER : Sta. 0+000 s/d 20+000

UNIT OF WORK : Cu.m

QUANTITY OF WORK :

DAILY/HOURLY OUTPUT :

NO. DESCRIPTION UNIT ALAT QUANTITY UNIT

A. Pekerjaan Badan Jalan (Subgrade)

A.1 Penggalian Badan Jalan

Buldozer 11 172,800 M3A.2 Pengangkutan Galian

Wheel Loader 5 138,240 M3Dump Truck 10 138,240 M3

A.3 Pemadatan Badan Jalan

Tandem Roller 1 72,000 M3A.4 Perapian Badan Jalan

Motor Grader 1 72,000 M2

Sub TotalB. Pekerjaan Tebing

B.1 Penggalian Tebing

Excavator PC 200 1 22,350 M3

Sub Total

Sub Total = (A + B )

Overhead and Profit

TOTAL Before Tax

Tax

TOTAL

UNIT PRICE ANALYSIS

Q BP & O Real Cost Durasi

(Rp/hour) (Rp/m3) hari

134.95 2,952,000 240,625.00 20.0

141.60 1,250,000 44,139.41 33.577.93 262,500 33,683.74 30.4

17,637.50 2,000,000 113.39 0.7

1,344.60 2,200,000 1,636.17 9.2 320,197.71

186.25 1,200,000 6,442.88 0.76,442.88

326,640.60

% Profit = 15% 48,996.09

375,636.69

% Tax = 15% 56,345.50

431,982.19

( m3/hour)

I21

Author: m2/hour

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