DL/T 53892007 水工建筑物岩石基础开挖工程施工技术规范

DL/T 53892007 水工建筑物岩石基础开挖工程施工技术规范

图书基本信息
出版时间:2009-4
出版社:中国电力出版社
作者:中华人民共和国国家发展和改革委员会 编
页数:34
字数:30000
书名:DL/T 53892007 水工建筑物岩石基础开挖工程施工技术规范
封面图片
DL/T 53892007 水工建筑物岩石基础开挖工程施工技术规范

前言
  Foreword  This Standard is prepared according to the requirements of Document No. 1093 [2006] issued by the National Development and Reform Commission——Notice on Printing the Development and Revision Plan of Professional Standards in 2006.  In recent years, great achievement has been made in the construction technology of rock foundation excavation for hydropower and water resources projects in China. The adoption of large-scale millisecond delay initiation network, presplit blasting or smooth blasting to remove the protective layer with one-step blasting method,and wide application of safety blasting monitoring during construction and trial blasting have provided technical supports for speeding up the construction progress and improving the excavation quality of the hydraulic structure rock foundation.  This Standard is formulated to further standardize rock foundation excavation of hydraulic structures, to ensure the blasting excavation quality of rock foundation and to speed up construction progress. This Standard is compiled by collecting the construction experiences and the new technologies of hydropower and water resources projects, referring to suggestions from the relevant parties and experts and the relevant contents of SDJ 211——1983 Construction Technical Specifications on Rock Foundation Excavation of Hydraulic Structures.
内容概要
  《DL/T 5389-2007水工建筑物岩石基础开挖工程施工技术规范(英文版)》是中华人民共和国国家发展和改革委员会编写的,全书为英文版,可供广大读者欣赏。
书籍目录
Foreword1
Scope2
Normative
References3
Terms
and
Definitions4
General5
Geology6
Survey7
Excavation8
Drilling
and
Blastin9
8.1
General
Requirements
8.2
Design
8.3
Construction
8.4
Presplit
Blasting
and
Smooth
Blastin9
8.5
Bench
Blasting
and
Buffer
Hole
Blastin9
8.6
Blasting
Adjacent
to
Horizontal
Foundation
Surface
8.7
Blasting
near
the
Special
Location9
Trial
Blastin910
Blasting
Safety
Monitoring
during
Construction11
Temporary
Support12
Drainage
and
Muck
Transportation13
InspectionTreatment
and
Acceptance
of
FoundationAppendix
A
Allowable
Safety
Criteria
of
Blastin9

章节摘录
  7
Excavation  7.0.1 Before
excavation,
contractors
shall
prepare
excavation
plan
and
technical
measure.
Temporary
and
permanent
support
of
slopes
shall
be
considered
as
a
whole
and
combined
with
each
other,
and
construction
shall
be
divided
into
reasonable
stages.  7.0.2 Excavation
shall
be
executed
in
layers
with
bench
blasting
method
from
top
to
bottom.
If
the
upper
and
the
lower
parts
need
to
be
excavated
at
the
same
time,
technical
demonstrations
shall
be
carried
out
for
safety
concern.
The
bottom
to
top
excavation
method
shall
not
be
used.  7.0.3 Presplit
blasting
or
smooth
blasting
method
shall
be
used
for
excavation
of
design
slope
outline.  7.0.4 For
excavation
of
the
rockmass
adjacent
to
the
horizontal
foundation
surface,
the
excavation
methods
for
reserving
a
protective
layer
should
be
preferably
adopted.
If
demonstrated
through
test,deep-hole
bench
blasting
method
of
special
measures
may
be
used.  7.0.5 Before
excavation
of
design
slopes,
some
work
shall
be
done
for
the
area
outside
the
excavation
outline,
including
removal
of
the
unstable
rockmass,
slope
cutting,
slope
reinforcement
and
drainage,and
attention
shall
be
paid
to
the
protection
of
the
natural
vegetation.  7.0.6 For
excavation
of
the
design
slopes
with
poor
geological
conditions,
effective
measures
shall
be
taken
to
treat
the
slope
in
time
in
the
process
of
excavation.


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