BFC 3013 / BFC 21303
CONFIDENTIAL
PART AQ1(a)Describe the internal layers of the earth.
(5 marks)
(b)Define tectonic plate.
(2 marks)
(c)Explain FOUR (4) evidences of the theory of tectonic
plate.
(8 marks)
(d)Describe briefly the types of minerals that react with acid
test.
(2 marks)
(e)Describe the method to identify mineral in laboratory.
(4 marks)
(f)Differentiate silicate and non-silicate minerals.
(4 marks)
Q2
(a)Discuss the classification of igneous rocks based on its
texture
(4 marks)
(b)Describe the classification in igneous rocks based on the
silica content (SiO2).
(4 marks)
(c)Evaluate the relationship between silica content, minerals
and weathering rate.
(5 marks)
(d)Describe FOUR (4) major processes involved in making
sedimentary clastic rocks.
(4 marks)
(e) Discuss with suitable illustrations (if needed) the
differences between:
(i) Clastic and chemical sedimentary rocks
(ii) Organic sedimentary rocks and inorganic chemical
sedimentary rocks(iii) Conglomerate and breccia(iv) Graded bedding
and rhythmic bedding
(8 marks)
Q3
(a)Describe THREE (3) types of metamorphic and give relevant
examples.
(3 marks)
(b)Explain how metamorphic textures influence the intact rock
and rock mass strength.
(4 marks)
(c)Erosion is one of the important agents of removal and
transportation of surficial materials which are the product of
physical and chemical breakdown of rocks by process of
weathering.
(i) Compare and describe the textures and properties of residual
soil and transported soil.(ii) Describe THREE (3) different types
of load carried by streams.
(6 marks)
(d)Explain FOUR (4) types of the environment of sediments
deposition.
(4 marks)
(e)Discuss with suitable illustrations (if needed) the
differences between:
(i) Weathering grade 1 and 6
(ii) Normal and reverse faults
(iii) Joint and faults
(iv) Physical weathering and chemical weathering(v) Oxidation
and hydrolysis weathering
(8 marks)
Q4
(a)Rock Mechanics and Soil Mechanics are branches of
Geotechnical Engineering that look at the mechanical properties and
behavior of rocks and soils respectively.
(i) Explain the difference in the definitions of rock and
soil.
(ii) List FOUR (4) index tests for rocks and explain the
different between the index tests and the direct test.
(6 marks)
(b)Explain, with suitable illustrations (if needed) the
differences between:
(i) Intact rock and rock mass(ii) UCS and JCS(iii) Resistivity
and seismic refraction test
(6 marks)
(c)Discuss the electrical resistivity test on how it helps in
identifying the earth materials and profile.
(5 marks)
(d)With the aid of related diagram, differentiate Rock Quality
Designation (RQD) and Solid Core Recovery (SCR).
(3 marks)
(e)Ground investigations are necessary for engineering
geologists to carry out in preparing their recommendations for
construction work on civil engineering site.
(i) Discuss TWO (2) limitations commonly associated with a
borehole investigation.
(ii) Explain why the geophysical method can be used to
complement a bore hole investigation.
(5 marks)
PART B
Q5(a)Explain the rock slope failure modes and its criterion.
(4 marks)
(b)Investigations at a rock slope site gave the following
information.
Height of rock slope
= 80m
Proposed slope face angle = 60
Critical discontinuity angle
= 45
Depth of tension cracks
= 3m
Unit weight of the rock
= 25 kN/m3Unit weight of water
= 9.81 kN/m3Cohesion of the discontinuity = 50 kPa
Friction angle for the discontinuity= 40
Using the information given in Figure Q5(b) for a plane failure,
examine the factor of safety:
(i)When the tension crack and the slope is dry, and
(ii)When the tension crack is completely filled with water.
(7 marks)
(c)A rock cut slope has a dip direction of 180 and dip angle of
60. A discontinuity survey was conducted along the proposed cut
slope and results for the discontinuity sets orientations are given
in Table 1. A study of the joint sets showed that all joint
surfaces had a friction angle of 30.
Table 1Joint set 1
Joint set 2
Joint set 3
Joint set 4
Joint set 5
Joint set 6
176/50
240/70
140/40
320/80
350/70
180/70
(i) Analyze the entire failure mode for both proposed rock slope
as well as the criterion as an evidence using Figure Q5(c).
(8 marks)
(ii) Recommend a new and suitable rock slope dip angle in order
to avoid potential any rock slope failure.
(3 marks)
(iii) Predict the consequences of the above recommendations in
Q5(c)(ii).
(3 marks)
BAHAGIAN AS1(a)Terangkan lapisan dalam bumi.
(5 markah)
(b)Berikan definisi ektonik keping.
(2 markah)
(c)Jelaskan EMPAT (4) bukti yang menyokong teori tektonik
(8 markah)
(d)Terangkan secara ringkas jenis mineral yang bertindak balas
dengan asid.
(2 markah)
(e)Terangkan kaedah untuk menentukan mineral di makmal.
(4 markah)
(f)Terangkan perbezaan antara mineral silikat dan mineral bukan
silikat.
(4 markah)
S2
(a)Bincangkan pengelasan batuan igneus berdasarkan tekstur
batuan.
(b)
(4 markah)
Jelaskan pengelasan batuan igneus berdasarkan kadungan silika
(SiO2).(4 markah)
(c)Berikan penilaian hubungan diantara kandungan silika, mineral
dan kadar luluhawa.
(5 markah)
(d)Jelaskan EMPAT (4) proses utama yang terlibat dalam
pembentukan batuan sedimen klastik.
(4 markah)
(e)Bincangkan dengan ilustrasi yang sesuai (jika perlu)
perbezaan diantara:
(i) Batuan sedimen klastik dan kimia (ii) Batuan sedimen organik
dan batuan sedimen kimia tidak organik (iii) Konglomerat dan
breksia(iv) Lapisan bergred dan lapisan berirama
(8 markah)
S3
(a)Terangkan TIGA (3) jenis batuan metamorf dan berikan contoh
yang bersesuaian.
(3 markah)
(b)Jelaskan bagaimana tekstur batuan metamorf mempengaruhi
kekuatan sampel dan jasad batuan.
(4 markah)
(c)Hakisan merupakan agen utama dalam mengalih dan mengangkut
hasil luluhawa fizikal dan kimia.(i) Banding dan bincangkan tekstur
dan kandungan luluhawa tanah baki dan tanah terangkut.
(ii) Terangkan TIGA (3) jenis beban berlainan yang dibawa oleh
arus sungai.
(6 markah)
(d)Jelaskan EMPAT (4) jenis persekitaran pengenapan sedimen.
(3 markah)
(e)Jelaskan dengan ilustrasi (jika perlu) perbezaan
diantara:
(i) Luluhawa gred 1 dan 6(ii) Sesar normal dan songsang(iii)
Kekar dan sesar(iv) Luluhawa fizikal dan kimia(v) Luluhawa oksida
dan hidrolisis
(8 markah)
S4
(a)Mekanik batuan dan mekanik tanah merupakan cabang
kejuruteraan geoteknik yang mengkaji sifat-sifat mekanikal batuan
dan tanah. i) Jelaskan perbezaan definasi antara batuan dan
tanah.
ii) Senaraikan EMPAT (4) ujian indek batuan dan jelaskan
perbezannya dengan ujian langsung.
(6 markah)
(b)Jelaskan dengan ilustrasi (jika perlu) perbezaan
diantara:
i) Batuan utuh dan massaii) UCS dan JCS
iii) Ujian kerintangan elektrik dan seismik biasan
(6 markah)
(c) Bincangkan bagaimana ujian kerintangan elektrik dapat
membantu didalam mengenal bahan bumi dan profil bumi.
(5 markah)
(d) Bincangkan dengan bantuan rajah perbezaan diantara RQD dan
teras gerudi dapat.
(3 markah)
(e) Penyiasatan tapak adalah perlu sebagai ahli geologi
kejuruteraan didalam menyediakan cadangan pembinaan kejuruteraan
awam di tapak bina.i) Bincangkan DUA (2) kelemahan yang berkaitan
dengan lubang jara.
ii) Jelaskan mengapa kaedah geofizik dapat membantu lubang jara
didalam penyiasatan tapak. (5 markah)
BAHAGIAN B
S5(a)Bincangkan mod kegagalan cerun batuan dan kriterianya.
(4 markah)
(b)Penyiasatan cerun batuan memberikan maklumat seperti
berikut:Tinggi cerun
= 80m
Cadangan sudut kecerunan cerun = 60
Sudut satah ketakselanjaran kritikal
= 45
Kedalaman rekahan tegangan
= 3m
Unit berat batuan
= 25 kN/m3Unit berat air = 9.81 kN/m3Jelekitan satah
ketakselanjaran = 50 kPa
Sudut ricih satah ketakselanjaran = 40
Menggunakan maklumat yang diberi didalam Rajah Q5(b) kegagalan
satah, analisa faktor keselamatan
i)Apabila rekahan tegangan dan cerun kering, dan
ii)Bila rekahan tegangan dan cerun sepenuhnya diisi oleh
air.
(7 markah)
(c)Cerun batuan mempunyai arah kemiringan 180 dan sudut
kemiringan 60. Pemetaan ketakselanjaran dilakukan di sepanjang
cerun potongan dan keputusannya mendapati set ketakselanjaran
adalah seperti dalam Jadual 1. Kajian dilakukan mendapati semua
ketakselanjaran mempunyai sudut jelekitan 30.
Jadual 1Set 1
Set 2
Set 3
Set 4
Set 5
Set 6
176/50
240/70
140/40
320/80
350/70
180/70
(i) Analisa mod kegagalan cerun batuan dengan menyatakan
kriteria sebagai bukti dengan menggunakan Rajah Q5(c).
(8 markah)
(ii) Cadangkan sudut baru cerun batuan agar dapat mengelakkan
potensi kegagalan cerun batuan.
(3 markah)
(iii) Ramalkan kesan akibat daripada cadangan dalam
S5(c)(ii).
(3 markah)
FINAL EXAMINATIONSEMESTER / SESSION : I / 2012/2013PROGRAMME: 3
BFF / 2 BFF
COURSE : ENGINEERING GEOLOGYCOURSE CODE : BFC 3013 / BFC
21303
Given:
FOS = cA + [W cos - U - V sin + T sin (+)] tan
W sin + V cos - T cos (+)
A = (H-Z).cosec
U = (w.Zw .(H-Z).cosec
V = (w.Zw2
FIGURE Q5 (b)
FINAL EXAMINATIONSEMESTER / SESSION : I / 2012/2013PROGRAMME: 3
BFF / 2 BFF COURSE : ENGINEERING GEOLOGYCOURSE CODE : BFC 3013 /
BFC 21303
FIGURE Q5(c)
UNIVERSITI TUN HUSSEIN ONN MALAYSIA
FINAL EXAMINATION
SEMESTER I
SESSION 2012/2013
COURSE NAME:ENGINEERING GEOLOGYCOURSE CODE:BFC 3013 / BFC 21303
PROGRAMME:3 BFF / 2 BFFEXAMINATION DATE:DECEMBER / JANUARY
DURATION:3 HOURSINSTRUCTION:ANSWER ANY THREE (3) QUESTIONS IN PART
A AND QUESTION Q5 IN PART B
THIS QUESTION PAPER CONSISTS OF TWELVE (12) PAGES
CONFIDENTIAL
CONFIDENTIAL
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