DL/T 5199-2004 水电水利混凝土防渗墙施工规范

出版时间:2009-9   出版时间: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   页数:58   字数:50000  
封面图片

DL/T 5199-2004 水电水利混凝土防渗墙施工规范
内容概要

  This Standard is compiled according to the document issued byformer Ministry of Electricity Industry, referred to as ZKJ[1998] 28,named as "Notice on the Plan of Stipulating and Revising Standardsand Specifications of Electricity Industry in 1997 ".  The application of concrete cut-off wall in hydropower andwater resources industry has been started since the end of 1950s inChina, which has a history of more than 40 years. During itsapplication, three industrial specifications has been stipulated byhydropower and water conservancy industry and issued respectivelyin 1963, 1979 and 1996. These three specifications immediatelyconcluded the achievements made during the development ofconcrete cut-off wall technique, and had played an important role inguiding the construction of concrete cut-off wall in our nationshydropower development, promoting the application of newtechnique, new material and new technologies, and guaranteeing thequality of project.  A tremendous progress has been made in recent years in ournations cut-off wall technique. Many new experiences had beenaccumulated, especially in our nations key project such as ThreeGorges Project, Xiaolangdi Project, etc.. This Standard is compliedby summarizing the new technique in our nations cut-off wallconstruction practice and also combining the experiences fromoverseas projects.
书籍目录

Foreword1
Scope2
Normative
References3
Terms
and
Definitions4
General5
Working
Platform
and
Guide-walls
6
Slurry
7
Trench
Excavation8
Materials
and
Construction
of
Cut-off
Wall9
Connection
between
Panels10
Reinforcement
Cage
and
Embedded
Part11
Treatment
for
Special
Circumstances12
Quality
Inspection
and
Construction
RecordsAppendix
A
(Normative
Appendix)
Criteria
for
Evaluating
the Prol.
rtional
Compressive
Strength
and
Homogeneity Of
ClaY
Concrete
and Plttstic
ConcreteAppendix
B
(Informative
Appendix)
Forms
of
Figure
and
Table
for 
Construction
Record
章节摘录

插图:7.0.1The
axis
and
top
elevation
of
the
cut-off
wall
shall
becontrolled
by
survey
benchmarks
according
to
design
requirements.7.0.9Determination
of
the
trench
length
shall
consider
the
factors,such
as
the
engineering
geological
and
hydrogeological
conditions,construction
location,
trenching
method,
capability
of
equipment,duration
of
trenching,
the
supply
of
wall
material,
preformed
holes
inthe
wall,
the
layout
of
tremie
pipes
and
the
plan
shape
of
the
wall.
The
short
trench
may
be
adopted
for
closure
trench,
andarranged
at
location
where
the
depth
is
relatively
shallow
and
theconditions
are
relatively
good.7.0.3Trenches
may
be
constructed
by
stages
and
enough
safetyspacing
shall
be
maintained
between
contiguous
trenches
that
areconstructed
simultaneously.7.0.4Trenching
equipment
and
method
can
be
selected
accordingto
the
strata,
the
structural
type
of
wall
and
the
capability
ofequipment,
a
combination
of
different
equipment
can
be
adoptedwhen
necessary.
The
trenching
methods
are
as
follows:
trenching
byconcussion
and
split,
trenching
by
drilling
and
grabbing,
trenching
bygrabbing,
trenching
by
cutting,
etc.
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《DL/T 5199-2004水电水利混凝土防渗墙施工规范(英文版)》由中国电力出版社出版。
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