' I
■
^. a* .^Val'- ^ > .**$!&*; ^ a* /ivWl** %.
•life- \/ Mfe, %/
c> *
,<^p
fry* "V
r« ^ &
* a4 "^>
„A <* **7T»*' .6 v.
*°* .
C* »
*
* »"i i • ' ,4*" ~0> " * o H o v
-- 5 ^ \--- A / ^ - ?W\6^ V'f.^/ % J ^^\^
'^^ ;> ^^mx->. "*w
^o*
'oV
.p v ..iu:
^^
o
c
^ V % J 'JHK ; .^'V °-%w* B ^ v \ J °3& ; j^^' o Wjw. : 4.^
A
. *» A
4^
lP^
^ ^
a.
^ (»".'
»■•• ^
4"
> . S * • r r\ C\» . ^ » i
■A r>>
«&'^. °o' i ^taw a^^ J .^ii^; ^^ °i/w; a^^
4- V
C u ♦
s . aV^ :
A
\n<^
* 4^ % •
° . » » A
0^ ,.«^ ^o
■/
"^^
o_ *
* ^
*~J?
x\ ^rf* • • • » «V> V-
« . V
5°*
%* .-ate: \/.-^\ %,**' *
■S>*r
J? ^
<$*■ o
«*o*
"bv*
W
5*"*
• • r *!»-
J»9
<5
l\ .Mi. ■'j>
o «
A°*
°*
V :'A V A"- ^ # : mk- ^/ -H" \^ /^ ; '
^ •
-P v .*:
1C 9007
Bureau of Mines Information Circular/1985
Subsidence Information for Underground
Mines— Literature Assessment
and Annotated Bibliography
By A. J. Fejes, R. C. Dyni, J. A. Magers, and L. B. Swatek
UNITED STATES DEPARTMENT OF THE INTERIOR
CD
C
X
m
>
c
75
'W/NES 75TH A^
Information Circular 9007
Subsidence Information for Underground
Mines— Literature Assessment
and Annotated Bibliography
By A. J. Fejes, R. C. Dyni, J. A. Magers, and L. B. Swatek
UNITED STATES DEPARTMENT OF THE INTERIOR
Donald Paul Hodel, Secretary
BUREAU OF MINES
Robert C. Horton, Director
no, fooi
Library of Congress Cataloging in Publication Data:
Subsidence information for underground mines— literature assessment
and annotated bibliography.
(Information circular ; 9007)
Bibliography.
Supt. of Docs, no.: I 28.27:9007.
1. Mine subsidences— Bibliography. 2. Mining engineering— Bibli-
ography. I. Fejes, A. J. (Alan J.). II. Series: Information circular
(United States. Bureau of Mines) ; 9007.
TN295.U4 [TN319] 622s [016,622] 84-600313
[Z6738.S76]
\
(\V>
4-
.N
CONTENTS
Page
Abstract. 1
\2 Introduction 2
Acknowledgments 3
Subsidence technology required by mine operators 3
^^^Reference assessment, rating, and categorization 3
Availability of information 4
Appendix A. — Annotated bibliography of selected references 12
Appendix B. — Comprehensive bibliography 49
TABLE
1. Categorization and rating of selected subsidence references 5
M
o
SUBSIDENCE INFORMATION FOR UNDERGROUND MINES-LITERATURE ASSESSMENT
AND ANNOTATED BIBLIOGRAPHY
By A. J. Fejes, ] R. C. Dyni, 2 J. A. Magers, 3 and L. B. Swatek 4
ABSTRACT
The purpose of this Bureau of Mines report is to provide mining indus-
try personnel and regulatory authorities with a subsidence-reference
list and annotated bibliography that will aid them in locating sub-
sidence information and in developing their own subsidence information
sources. Over 700 references are listed in the Bureau's subsidence in-
formation center bibliography; approximately 600 of these references
were obtained for assessment. Of these 600 references, 167 were select-
ed to be rated, categorized, and annotated. All literature referenced
in this report was published prior to 1984. Table 1 is a cross-
referenced index that classifies and rates selected references with
respect to specific keywords. References are rated not on quality of
content but rather on applicability to given subject areas. Appendix A
is an annotated bibliography of the references listed in table 1 and
provides further information on each article to aid the user in select-
ing articles for specific areas of subsidence technology. Appendix B is
a copy of the subsidence information center bibliography.
^Mining engineer.
^Physicist.
•^Engineering technician.
4 Civil engineer (now with Office of Surface Mining, Denver, CO) .
Denver Research Center, Bureau of Mines, Denver, CO.
INTRODUCTION
This Bureau of Mines report identifies
sources of subsidence information that
are often unknown or unavailable to mine
industry personnel. Its purpose is to
assist the mining industry and regulatory
authorities by providing a subsidence-
reference list and annotated bibliography
that will aid them in locating subsidence
information and in developing their own
subsidence information sources.
A subsidence information center was
started at the Bureau's Denver (CO) Re-
search Center in 1980 to create a sin-
gle, central, and comprehensive source
of available state-of-the-art subsidence
literature and provide this information
to mine operators attempting to limit or
control mining-related subsidence damage.
An intensive literature search was per-
formed to compile a comprehensive subsid-
ence bibliography. This search included
the use of computerized information re-
trieval systems, published bibliogra-
phies, and individual assessments of sub-
sidence article bibliographies. At the
end of 1983, the bibliography contained
over 700 references with approximately
600 subsidence references available for
consultation at the Bureau's Denver Re-
search Center. From these available
references, articles were selected and
annotated; the procedures used for se-
lecting articles are described later in
this report. All annotated articles in
this report are on file at the research
center.
The Surface Mining and Reclamation Act
of 1977, Section 516 (b)(1) of Public Law
95-87, requires mine operators to adopt
"...measures consistent with known tech-
nology in order to prevent subsidence
causing material damage...."
This report outlines available litera-
ture that pertains to state-of-the-art
subsidence technology, developed in the
United States and abroad, that will as-
sist persons developing subsidence con-
trol plans. Included in the literature
is information on subsidence-predic-
tion methods, subsidence-related mate-
rial damage, subsidence-control measures,
subsidence-monitoring procedures, and
subsidence law.
This report describes subsidence tech-
nology required by mine planners , key-
words developed for characterization of
references, rationale used for selecting
and rating references in appendix A, and
availability of references.
Table 1 lists 167 references selected
for annotation. It identifies the con-
tent of each reference and rates the con-
tent of each reference with respect to
its applicability to the given subject
areas. The table is cross-referenced,
subject versus reference, to assist users
in locating information on a specific
area of subsidence technology or on a
specific subsidence reference.
Appendix A is an annotated bibliography
of the references in table 1 and provides
further information on each article. In-
cluded in each annotation is biblio-
graphic information and a brief descrip-
tion of the content, ease of use, and
applicability of subsidence information.
Appendix B is the subsidence informa-
tion center bibliography, including all
references in appendix A. Of the 767
references listed in appendix B, approxi-
mately 600 were assessed for possible in-
clusion in appendix A. The remaining
articles were not assessed because they
were out of print, not available in
English, or not attainable.
Since most engineers who apply the sub-
sidence technology have neither the time
nor money to expend on an extensive
search for subsidence literature, it was
felt that it would be appropriate to
assess only those articles that are read-
ily available to U.S. subsidence engi-
neers and mine planners. However, all
references were included in appendix B
for completeness. Of the approximately
600 references obtained for assessment,
only 167 articles were annotated. These
articles were considered by the authors
to be representative of state-of-the-
art technology for the given key subject
areas. The annotation of over 600 arti-
cles would provide an unwieldly reference
that would have been costly and time con-
suming to produce.
ACKNOWLEDGMENTS
Larry R. Powell, geologist, Twin Cities
(MN) Research Center, Merle T. Bernstein,
librarian, Twin Cities (MN) Research Cen-
ter, and Betsy Chapel, librarian, Denver
(CO) Research Center, are acknowledged
for their efforts in obtaining and pro-
viding subsidence references assessed in
this report.
This project received strong support
and encouragement from the Office of Sur-
face Mining and was developed and closely
coordinated with that organization from
the outset.
SUBSIDENCE TECHNOLOGY REQUIRED BY MINE OPERATORS
To control, mitigate, or prevent
mining-related subsidence damage, mine
planners must be able to adequately es-
timate the location and magnitude of ver-
tical and horizontal displacement, cur-
vature, tilt, and strain at the ground
surface. Although it is impossible to
totally eliminate surface effects from
underground mining, adequate subsidence-
prediction methods used in conjunction
with proper mine-design and damage-
mitigation techniques can minimize ad-
verse surface effects.
State-of-the-art subsidence technology
is scattered throughout numerous institu-
tions and is unknown or unavailable to
many mine planners. This report attempts
to minimize this problem by locating,
assessing, rating, and categorizing this
information with respect to five key sub-
jects: (1) prediction methods, (2) ma-
terial damage, (3) subsidence control,
(4) subsidence monitoring, and (5) sub-
sidence law. Information relating to
these subjects can assist mine operators
in complying with Public Law 95-87.
REFERENCE ASSESSMENT, RATING, AND CATEGORIZATION
The following five key subjects were
used to assess, rate, and categorize sub-
sidence literature. They represent the
areas of subsidence technology that will
assist mine planners in developing a
subsidence-control plan in accordance
with Public Law 95-87.
• Hydrologic damage to surface wa-
ter including rivers, streams, and sur-
face drainage.
• Hydrologic damage to ground wa-
ter systems.
3. Subsidence Control
1. Prediction Methods
• Means of predicting vertical
ground displacements at the surface.
• Means of predicting horizontal
ground displacements at the surface.
• Applicability to the Appalach-
ian Coal Region.
• Applicability to the Illinois
Coal Basin.
• Applicability to the Rocky Moun-
tain Coal Region.
2. Material Damage
• Damage to surface structures.
• Damage to subsurface structures.
• Controlling subsidence with
properly designed underground-mine
layouts.
• Controlling or limiting sub-
sidence with backfilling techniques.
• Minimizing structural damage
through design and construction (sur-
face measures) .
4. Subsidence Monitoring
• Design of monitoring systems for
measuring surface effects.
• Instrumentation required for
monitoring systems.
• Survey methods for measuring
vertical and horizontal displacements.
• Surveying required for subsid-
ence monitoring.
• Data processing methods for
subsidence data and information.
5. Subsidence Law
• Federal laws that relate to min-
ing subsidence.
• Laws that relate to mines in the
Appalachian Coal Region.
• Laws that relate to mines in the
Illinois Coal Basin.
• Laws that relate to mines in the
Rocky Mountain Coal Region.
• Laws in foreign countries that
relate to mining subsidence.
All subsidence references listed in
appendix B were analyzed to determine
their applicability to these five key
subjects. If the reference was germane
to one or more keywords , an attempt was
made to obtain the article. If the arti-
cle was obtained and selected for annota-
tion, it was assessed and rated with
respect to each key subject.
Each reference was rated either S, G,
or E to indicate its relevancy in the
specific area (key subject). The rat-
ing S signifies a satisfactory refer-
ence that contains general information
of limited scope. A rating of G indi-
cates a good reference that contains a
full breadth of information on the given
subject but lacks specific information.
A rating of E indicates an excellent
reference because it contains specific,
comprehensive information. The absence
of a rating indicates that the reference
does not pertain to that key subject.
AVAILABILITY OF INFORMATION
Prior to the Surface Mining Control and
Reclamation Act of 1977 (Public Law 95-
87) , there was limited concern in the
United States about the problem of mine
subsidence. Thus, subsidence research
for U.S. mining conditions was limited.
In contrast, European mining engineers
were greatly concerned with mine subsid-
ence because of high population densities
that increased the probability of damage
to surface structures. Therefore, most
state-of-the-art subsidence technology is
derived from European experience. How-
ever, it is not known how much, if any,
of this foreign technology is applicable
to U.S. conditions, and information that
does apply might be difficult to obtain.
Good sources of subsidence information
in the United States are colleges and
universities with mining departments,
and a few State and Federal agencies.
Federal agencies that might have subsid-
ence information include mining-research
and mining-regulatory agencies , such as
the Bureau of Mines, the U.S. Department
of Energy, the U.S. Geological Survey,
and the Office of Surface Mining Reclama-
tion and Enforcement. State agencies
that may have access to subsidence infor-
mation include State mining and geologi-
cal surveys. In addition, the articles
annotated in appendix A are available for
consultation at the Denver (CO) Research
Center.
Based on the number of subsidence arti-
cles published since 1977, the amount of
subsidence research being performed in
the United States has increased dramat-
ically, and there will no doubt be a fur-
ther concentration of research on this
subject in the future.
•3
C
cu
(X
cx
to
C
3
o
o
CO
d)
cj
s
cu
O)
U-l
0)
!-J
0)
o
c
0)
•H
CO
XI
a
co
■3
0)
•u
O
0>
rH
01
CO
bO
3
•H
4-1
Ct)
U
T3
3
3
s
o
•H
4J
co
N
T-t
u
o
bO
cu
4J
CO
o
W
J
pq
<
-4t
CNJ
eg
csi
CNJ
oo
I I
I I
I I
w w
W Ed
I I
I I
I I
I w
I I
I I
I I
I I
I I
I f
o
w w
w
o
u
w
o
t I
W I
W I w
w w
I I
I I
I I
I I
O I
I I
I I
I o
I w
I o
I I Ed
I I
I I I
I I I
I ! I
I I I
I I I
I I I
I I I
I t I
w w w
I I
I I
I I
I I
I I
I I
I I
CO I
I I
I I
III II
III II
I I
I I
III II
o o o o o o
I w
w
u
o
4-1
CJ
CO
4->
CO
CO
co
•3
o
o
o
o
4-1
c
cu
CD
o
X
w
w
O I
I I
O I co co |
I I
I I
CO O O o o o
I I
I o
III II
W W
w
I I
III II
O I
I I
III II
C/3 1
I I
III II
I I
I I
o o o
I I
3
%
CD
CJ
CO
l-l
o,
CO i
Q -H
a
Pm -3
c
3 CD
O >
M
O
s •
o •
•H •
bO •
CU CI
CO
rH CO
co pq
o
O rH
CO
s o
CO O
c
o
1-1
DO
CU
Xi
• • O -H
C tO o
O rH C
•H CO 1-1
U ftr(
it an
CJ >4-l
O M
3 3
M CO
CU
00 •
cO
CO S-i
•3 CU
.. 4->
CU rH CO
O CO &
CO CJ
MH vH CU
U DO o
3 O to
C0 rH <4H
.£> O U
3^3
CO *o CO
• J
• O
• (*!
• H
• Z
• O
• O
. w
l-i o
cu Z
O
z
M
o
H
H
Z
o
2
CU
M Ed
3 O
to Z
3 DO CO Ed
DO C
CO C/l
>4-l
H
3
l-i
§
4->
CU
3
DO
3
•H
U-l
O
cfl .
pq co
C rH
DO CO
•H 4J
DO CO
o
CU 4-1
g 3 "3 g
5. tH O &,
• <:
• j
DO Ed
3 O
•rl Z
to w
to
•
S
3
bO
>%-H
^5
CU
c
•H
co
4-1
C
o
o
CO
CO
u
c
cu
J-l
CU
cu
0)
o
e
cu
•H
CO
3
co
cu
■u
CJ
CU
rH
CU
CO
U-l
o
bO
c
•H
4J
tfl
C
CO
c
o
•rH
4->
CO
N
•H
U
O
bO
CU
4-1
CO
o
W
iJ
P9
<
oo
III II Ml
l l
1
1 1
1 1
1 1 1 1
II III II II 1 O 1 III III 1 I 1 1 1
\0
II III II II 1 W 1 III III 1 1 1 1 1
II III II If 1 W 1 III III 1 1 1 1 1
II 1 W 1 O O II III III III lllll
co
II III CO I II COII CO | 1 III lllll
CM
CO 1 CO 1 1 II II III III III lllll
■— 1
COCO III II II III COCOCO CO CO 1 lllll
o
W W III II II III III III lllll
CO
II III II II III III III 1 O 1 1 1
co
co
II III II II 1 W 1 III III lllll
II III II II III WWW O W O lllll
CO
II III II II III CO W O CO O 1 lllll
IT)
CO
II III II II III W 1 CO O W 1 lllll
-d-
fO
coco III II II III O O O O co co lllll
CO
CO
II III It II 1 W 1 III III lllll
CM
CO
WW III II II III III III lllll
I— 1
CO
II III II II Oil III III lllll
o
CO
II III II II III III III W 1 1 1 o
as
CM
OO III OO II IIO III III lllll
00
CM
II III II II 1 W 1 III III lllll
r-.
CM
II III II II 1 W 1 III III lllll
CM
II III II II OOI III III IIIIO
I/O
CM
II III Ol Ol W 1 1 III III lllll
CO
o
o
ffi ••
H 4J
W C
s %
Ss cu
o o
M CO <
H ,H •
O O. ■
M CO i-
Q -H CC
Pi T-
Pn T3 4J
C 1-
3 a
o >
M
O
r—
4-
C
c
N
•i-
f-
c
PC
1 o o C- • • • .•
i • • o • • • •
> • • -r-l • • • •
> Ci • bO • • • •
» O • CU • • • •
» iH • p4 •• •• h J
> bO • W •• • • O
> l) (!H U •• • • P4
• pi t-1 CO co O S • cu • • S3
> rH CO O < •DO • • O
> cfl pp G .eg • • O
O C cu S • • «
> UH-H J bOfO U • W
> CO CO < CO "3 (Ui-iO
c o <-> i-< s •• u m z '
cfloeas coojrHto-uw .
,C CO O H >H COO S M b
••0-HS. 3c03Oc0C!=>a
■H (J iH i! W1H fflHW stni:
u an o oi-j^omo
cOa^HO 3 3 3 l-i 3 t-i 4.
O < H Bi J-iCOCOtJCOO P
O 4J >, -H
i-j co pa ss
t»
c
1-
1—
1-
•1-
u-
c
cC
pq
» •
» •
! I o
- • z
. . M .
. . o
. . H
. • M ••
• • S3 ^ <
> • O U '
> co a o '
> cu S <
> i-l W W '
- 3 o cu -
co Z C '
CO w <
01 Q bO •
QMS.
MiH C
cu m u b.
03 O'H
CO CO 4-> CC
iw •HO)
f-i CO
3 O
co 2
P
c
•!-
4-
CC
r-
r-
«
*J
CT
c
H
> • •
• •
• •
1 • •
IS •
> • •
• •
1 • •
> • •
> • •
• •
• •
. . .
4J • 4-
e .. . e
, X v-
3 CU JJ S
tf> m d
3
CO
1 •
» •
» •
. . bO W
-co-
> -H S3 -
' CO W <
• CO Q '
CU H '
CJ CO <
O PP <
l-i l=> <
Cu CO .
U i—
CO «
4-1 l-i
"CO CU
Q T3
CU
» • • • •
> • • • •
. . . c •
. . • o •
• • • -H •
> C • bO •
. O • CU •
« -H • pi •
• bO •
- CU C iH •
• Pi -H CO •
> CO o •
>H giu •
> co PP
o c •
U r-i 1-4 •
CO CO •
C O 4-> •
tO O C •
•d s *
JJ CO o •
O -H g C
CO O bO
^H C kN -H
CO -H ^ CU
C iH O l-i
ftH O O
< H Pl h
o u
I I
I I
o o
o o
W W
w w
o o o
o
o o
o o o
I I I
I I o
o o
I I
I I
O I
I I I
I I I
I I I
I I I
I I
I I
I I
I I
III II
III II
U tfl I wow
o
w
w w
I I
I I I
I I
w w
I I
III o o
w w
I I
I I I
I I
I I
O CO
I I I
I I
C5 O
(fi W W II
o o
I w
III II
I t-l
o
4->
cj
O cO
CO
co co
III II
w w
III II
I u
co
_ CO
I I
O O O O CO
I I
O O O co co O
I I
O W O CO CO
T3
I o
o
_ o
I I
III I
I
u
I I
I I I
I w
o
o
I I I
4-t
I s
CD
I I
o
III I
I CD
o
_ X
w
I t
I w
III I
w
co i
I I
I I I
w c
a g
Z 0)
o o
H cd
H r-l
c_> a
H CO
a -h
§
P-i T3
c
M M
a) o
o > a
u
o
s
o
•H
bO
CD C
Pi -H
CO
iH CO
cO pq
o
cd
c o
CO CJ
•H
X CO
• • O iH
3 cd O
O r-l 3
•i-l CO -H
*j an
(J an
o l-l
3 Pi
3 W
O H
s <
o
o
Pi
• a)
• bO
• cO
CO
o
z
H
erf
o
H
• z
• o
co S
CD
M W
3 CJ>
co Z
CO W
CD Q
e h
CO
, JS
3 CD 4->
cr > cd
Q H W M S
3
co
3
bO cO
•H 4-1
CO CO
CD 3
•
aco
CO
4-1
CO
Q
c
o
•H
bO
CD 3
Pi -H
co
.H CO
CO PQ
O
O iH
CO
3 O
cO CJ
c
o
•r(
bO
CD
Pi
,3 co
.H CJ 'H
CO cO O
M iH 3
CD CO -H
•3 CX^H
CD & .H
W <3 M
CO
4-)
3
3
£c
bO
jsi CD
O M
q o
p3 w
T3
CD
3
3
•H
4J
3
o
c_>
I
I
<
X
•H
•3
3
CD
Cu
a
ed
s
•H
•3
a;
c
o
o
co
d)
o
c
cd
S-i
a)
M-l
CD
CD
o
s
ai
•H
CO
J3
3
co
•3
0)
•u
o
ON
III CO 1 II CO 1 CO I
1
1 1
H 1 1 1
in
ON
CO CO III CO 1 II III III III lllll
o-
On
ii iii ii ii iii co e> a o i o iiiii
ON
a i iii ii ii iii iii iii iiiii
CN]
ON
O O III II II III III III lllll
1 — 1
ON
II III II II CD I i ll> III lllll
o
ON
II III HI II III III III lllll
ON
00
CO 1 III II II III III III lllll
oo
oo
CO CO III II II III III III lllll
oo
II III II II co I i III III lllll
00
o e> iii h h ii ill ill iii oiiii
oo
UO III Ol II Oil III III lllll
00
II III II II III UUU III lllll
en
oo
CO 1 III II II III III III lllll
CM
00
HI III II II III III III lllll
1— 1
00
II III O 1 II 1 1 O III III lllll
o
00
COCO IIO II II III OOO COCOCO lllll
ON
II III II II III 1 1 CO III lllll
00
II III II II III III III 1 H 1 1 1
r--
UOHII II II III III IIO lllll
HI H co co || || III III III lllll
m
COCO III II II COII III III lllll
ll III co i ii co i i ill ill lllll
CO
O O III II II III III III lllll
CO
a
o
rn ..
H 4J
H 3
S3 cd
^ e '
25 CD •
O u •
M CO ■
H i-i <
o ex .
H CO r-
Q rl It
H H3 C
«
PU TJ 4J
C V-
3 a
o >
u
o
cc
4.
P
C
t\
T-
t-
c
rr
» •••H •• ••
» O • CD • • • • <
> >H • P5 •• ••i-J
> bO • H •• • • O '
(UCr-IO •• • • P5 <
aJ-HcO< •• ..h<
» CO O 2 • CD • • 25 <
> ■HCCU< 'bO ..O'
> CO CO Q -CO • • O '
• O C CD . • <
' OiH-HJ bOrt U • W i
• CO cfl < cOT3 HI M U •
co4-)M .. 4-) a> 25 <
cfl CJ 3 P5 n) -, -H
hJ CO X g
1 • • •
> • • 85 •
> • • 1— 1 •
> • • P5 •
• • o •
. . H
• • M •• •
• • 85 M • '
• • Q M • '
• co 2 o • <
• cd 5 • ■
• M H 4J • C
• 3 O d) • C
• CO 85 3 • -f
bO cfl H • 4-
3 CD Q bO • CC
•H H C • i—
i-l CO -H 3 i—
H a) pQ M M K
•rH Ot3 O -H 4-1
i*-i co co 4-> co a
4^ <4-l -rH CD C
O l-i CQM
CO 3 O
PQ co 2
» •
1 •
» •
» •
1 •
1 •
» •
> •
> •
• 4
• 4
•
• <
4-> <
c •• .
CD bO Cf
B C *C
ftrl c
•H >,£
3 CD 4J
W > CD
H M S
3
co
» • •
» • •
I • •
I • •
• •
1 • •
1 • •
. . . s
■ . . <;
> • . J
> • •
• • bO H
'•CO
> • •!-( 85
' • CO H
• CO Q
• CD M <
4J CJ CO .
c o ta <
cu u o •
d cu co •
Cu i—
•H CO CC
3 4J i-
cr co cu
H Q X
CD
H
» • • • •
• • • •
. . . c •
. . . o •
> • • -H •
• 3 • bO •
. O • CD •
• iH . p4 •
• bO • •
' 11 CH •
• pi i-l cO •
• CO o •
■ H mo •
• co pq
• O 3 •
'OHiH •
cO cO •
3 O 4-i •
cO O 3 •
•H 3 .
X «1 O •
O -H 2 3
CO O bO
iH 3 ^ -r-t
cO i-l ^! CD
D.H U h
CX i-l O o
H CO CJ
CO Q) "+H iH
>J U h
a to a
4-1 H-l CO
o u ja
3 3 3
1-1 CO CO T3 CO
4-1 >-,
CO 3C
o>
bO O
O CO
o u
U 3
• CO
• O"
• In
• 3
• to
bO tfl
3 0>
o
2:
h-l
BS
o
H
M ••
2 A!
o u
S O
&
W 4->
CJ 1)
I 01
CO "O -H O
"4-1 CO
^ <4-l
CJ M
CO 3
PQ CO
3 iH
bfl CO
•H 4J
to co
0) £
Q H
bO co
3 T3
■H O
S^-3
0) -U
> OJ
u X
3
CO
4-1
c
a.
•H CO
3 4->
cr co
W Q
• <
• (J
bO W
3 CJ
•H 2
CO W
CO P
0>
u
o
CO
BQ
in S3
Oh CO
• 3 •
• o •
• -H •
• bO •
• O" 3
• C*h -H
• co
• H Ij
• co m
• o
• OH
co
• 3 O
• flu
• T-t
• si to
rH CJ -H
CO co O
U r-i C
0) CO -H
X) &.-H
d an
W
•
P4
•
•
r-t
•
cO
•
o
•
a
♦
•
c
•
■H
*
CO
•
4-J
•
c
•
3
•
O
•
s
c
bO
t^-H
^
0)
o
u
o
o
rt
w
• 3
• O
10
13
CO
1
i
I
1 1
1
1
1—1
CN
CO
en co
I co i
1
1
1
1
1
1
1
i
1
1
I
i
1 I
w
1
•— (
1— 1
CO
W W
1 1 1
1
1
CO
CO
1
1
1
i
1
1
I
I
1 1
1
1
I— 1
o
CO
CO O
1 1 1
1
1
1
1
1
1
1
i
1
1
i
I
1 1
1
1
i-H
ON
CN
1 1
1 1 1
1
1
1
1
co i
1
i
1
1
I
I
i 1
1
1
1— 1
CO
CN
co O
I 1 1
o
CO
1
1
1
1
1
I
1
1
I
co
1 1
1
1
1 — 1
r-~
CN
1 1
1 1 1
1
1
1
1
1
1
CO CO
CO
1
CO
1
1 1
1
1
rH
>J3
CN
O 1
1 1 1
1
1
1
1
1
1
1
I
1
1
1
1
1 1
1
1
1 — 1
I/O
CN]
O 1
1 1 1
1
1
1
1
1
1
1
i
1
1
1
1
1 1
1
1
i-H
o-
CN
co o
1 1 1
1
1
1
CO
1
1
1
i
1
1
1
1
1 1
1
1
1 — 1
CO
CN]
1 1
1 1 1
1
1
1
CO
1
1
1
I
1
1
1
1
1 1
1
1
— '
CN
CN
o o
1 1 1
1
1
1
1
1
1
1
l
1
1
1
1
1 1
1
1
r- 1
1— 1
CN
1 1
1 1 1
1
1
1
1
1
1
1
l
1
1
1
1
1 1
I
W
1
i — t
> m
• • e
► •
. . o
•
• • vH
> •
•
•
• •
•
3
i •
a • do
CO
O
•
O • CU
z
•H
CO
» •
■H • Pi
•
•
•
•
H-l
•
i •
H
i •
• •
•
• 3
•
bo
o
► •
DO •
w
•
•
•
•
o
•
i •
oi
► •
i •
•
• o
•
cu
o
•
11 CH
co
•
•
•
•
a!
•
i •
o
» •
* •
•
s
• -H
•
Pi
Sd
••
•
pi -H CO
•
•
•
•
H
•
* •
H
l •
• •
•
<
• M
•
H
w
•
CO o
S
•
CU
•
•
2
•
i •
H
■•
► •
i •
•
hJ
• cu
3
r-t
w
3
i •
H H)U
•
> •
•
• oi
•H
3
s
•
o
M
> •
• •
bO W
•
CO
O
i •
O 3
cu
Ft
•
•
•
> co
X
o
•
» •
3
co
• i-H
3
CO
z
cu
► •
Orlrl
yA
on
CO
M
•
W
•
. CU
S
•
»
•H
z
• CO
M
o
o
•
CO CO
<
crt
13
cu
u
CO
•
u
w
■u
3
> •
CO
w
• O
3
H
CD
•
d o w
H
n
• •
w
cu
2
•
3
u
cu
O
•
CO
a
• o
<-!
•rl
H
iH
i-H
cO CO C
Cti
cfl
0)
.-1
crt
4-1
w
•
CO
z
3
•H
•
cu
H
•
3
3
CJ
CX
cd
•H 3
w
• •
13
CJ
CO
!3
cfl
o
3
b
3 cfl
w
4->
4-
4J
CJ
CO
• 3
O
4-t
H
CO
rH 4->
43 CO O
H
^H
CO
CJ
S
H
bo
p
CU
Q
bO
CO
e
3
o
PQ
• CO
CO
3
P
•H
cO 3
. .
CJ -H g
• -H
3
W
n
o o
c
CO O
^■j
U
CJ
U
bO
CJ
13
cfl
CO
i—
CO
•H
c
rH
F
3
X
n
CO, CO
• J3
CO
O
2
•rl N
o
rH 3 ^
3
CO
3
O
cO
3
3J
cu
i —
CU
m
M
b
) CO
e
u -H
c
a
rH CJ
•H
SI
3*
PM
13
4J -H
•H
CO vH 4,X
•H
CO
cO cO
o
DC
3
^ u
4-1
a. in o
o
u
J3
O
u
O
4-
CO
CO
4J
CC
CO
f-
CU
4J
3
4-1
rl rH
3
>-.
•rl
3
cu o
CO
Cu rH O
3
3
3
M
3
M
CU
M
4-1
•H
a
3
c
* >
a
cr
cO
CU CO
•H
M
CU
> 33
CJ
i ii i i o ill ill iiiii
II III 11 II 1 W 1 III III lllll
CNI
II III II 1 O III III III lllll
i — 1
i— i
UO IUI col II III III III lllll
o
U O III II II III III III lllll
r— 1
II III WO II III III III lllll
CO
m
II III II coco ill ill 1 co i lllll
in
i— i
O U III II II III III III lllll
II III II II 1 W 1 III III lllll
•
o
4J
u
CO
CO
•1-1
■u
cO
CO
in
in
II III II II III III III 1 W 1 1 1
m
■—i
WW III II II III III III lllll
m
— <
II til II It III COCOCO 1 1 CO lllll
m
O 1 III II II III III III lllll
CO
m
— i
COCO III COI II CO 1 CO III III lllll
•
X)
o
o
o
o
m
II III II II CO 1 1 III III lllll
i—i
COCO III II II coil III coil lllll
o
00
II III II II Oil III III lllll
•
4->
c
CD
rH
rH
CD
CJ
X
w
—i
II III II II coil O CO CO III lllll
r— 1
COCO III COCO II COII III III lllll
m
II III II II III III III 1 1 1 W 1
w
co <
Q
o -
EC ••
H 4J
W d
g g
z
u
o
r—
cc
4-
c
c
tv
T-
V-
c
s
. . . O
' • • T-l
• d • bO
o • 06 t-I rt <2
' w o S «
i-H tfl U < >
to pq Q
o d a
UH vl J b
' to to < ct
. 3 O 4J h-l g
to O 3 04 tc
•H 3 W •• t:
£ 9) OHH
.. U rl S < <« i
C to O S 1j c
o , 3 a
■H tO 1-1 ^ 4-> <4-
w o-^h o y t-
tO CXiH O 3 5
0< HBl U V
O 4J
►J co
» • • m
< • • • ij <
i • • • o
I ■ • • Q^
i • • • H
. < 1-
• • • •
> • • 1— 1 • • .
> • • prf • •
» • • O • •
> • • H • •
, . . 1— 1 •• • •
> • • z ^ • •
> • • o u • •
' • CD S O • •
> . a> s • • <
> • >-i W J-> • c <
> • 3 o a) • o •
> • co Z d • t-l .
bO tO W • 4J 4-
OCfUQbO • tO C
•H S M 3 • rH a
rH CO T-l C iH E
t-i a; pq u bo to c
•H O & O -H 4J t-
14-1 tO CO JJ CD CD S
^t i4-i -h a) C c
O t-i 3 Q M W
tfl 3 O
pq co S
I ••• * 9 • £ •
> ••• * c! * bO *
» ••• • o • CD •
» • • • ^ • bO • •
> ■ • • h5 • J) C r- 1 •
> ••• • P5 -H CO •
> ••bOW« coo*
' • ■ fiO «H (O <
i •••HZ'cOW •
' ••coW'O 3*
> • • CO Q • O H rl ■
> ••CUM* CfltO*
• 4-ioco • d o 4-1 •
.. *dopq *cood •
bo n v M 3 • *h 3*
Cxi g aw *xtoo •
U-HOO, iH O T-l S! d
>,J2T-It0 tfltflO bO
* t-l
f>0)crcfl
3
o
?0
Q-
o
Q
o
cd
n
Q_
CD
3
-*•
Q
3
o
-♦■
c
-i
3
-*•
o
Q
o
c
Q
i
(/>
O
in
_.
3-
3
TJ
3"
l/l
3
Q
Q
—4-
CD
Q_
3
(H
o
3
tQ
^7
Q
-^
Q_
n
(D
3
(/>
a
cd
Q
•
<£>
CD
n
■n
-+
CD
<
n
(/>
£o
31 >
$ C
m
,„ m
C/)
00
C *■
*§(!,
Oo C
m p2 C
$ mo
-<> 2
r < -
< m 2
> Z m
Z C «
O
m
>
li
"n co
x ^
m
zco
H
m
o
>
z
m
O
c
>
r-
o
TJ
TJ
O
33
C
Z
H
-<
m
O
-<
m
3)
c
en
> 0>
S*!
s °
- m m
5 z >
i o o
o> "n -n
H m
I m
m co
5 f
5 £
m O
jg
O
31
^'
0"
^ *
V cO" * V
A° A
\o^> y.^\ 4mkS ^£MkS-
4- v .
v ^ ■»
5 °^ I
v^** ^
r *&
"o.V
^6*
40.
•*& %../ .♦»&. %..* .-ater-. %„./ >'^*-
\A£'
4 o.
3,0 -VN
A°*
' o . S
•a." *«<■
4P ^I*°*. ^ . . V .^^'^ 1
^.^
A V ^6.
G^ >».
«^ °Xv o^
* A V *^
A
G^.c^r.^o
^- v of .°*v\
< >• ^ Jk * » • * *i
^ ,
*o*
iV' _ » « /, 1^ ^ % r . s • •
.0* •♦•
A <^ -"v"7. s * g^ <>, *o.»* A <.
' ^. A^* *
A^
^ V^ f >* °^**^V V^V ^^' o> \
> ♦ A>^ -
%s
W
*oV"
Jv*
A>^
■>
**<&
».i*
^
» ^ \
L^
^ X
,5°^
o, *
• a •