第
32
卷第
4
期
2015
年
07
月
采矿
J
'.j去全工程学报
Joumal ofMining & Safety Engineering
文章编号
1673-3363-(2015)04-0628-06
常村矿巨厚砾岩下特厚煤层开采对
地表形变的影响分析
李春意崔希民
2
胡青峰
3
何荣
l
Vo
1.3
2 No
.4
July
2015
(1.闽南理
I
大学测绘与|到:i二信息
E
程学院,河南
焦作
454000; 2
叶
I
压|矿业大学(北京)地球科学
f
';j测绘工程学院,
北京
100083;
3.
华北水利水电大学资源与环境学院,河南
郑州
I
450011)
摘要
为了研究巨辱砾岩下特厚煤层开采地表形史规律,以概率积分模型为原型,建立了基于叠
加原理的三维空间分布式优化求参模型。以常村煤矿
2113
工作面地表移动观测站实测资料为依
据,采用下沉和水平移动求参模型求取了地表形变预计参数。结合工程地质资料,从岩层运移机
理对参数的分布规律进行了分析。结果表明,巨厚砾岩关键层的初次破断距为
367
m
,悬臂梁周
期破断距为
179
m
,关键层破断后地表非连续支形显现强烈,巨厚砾岩层的悬臂支承作用是造成
地表沉陷盆地出现偏态下沉的根本原因,与实测结果相吻合。
关键词
巨厚砾岩;开采沉陷;优化求参;运移机理;关键层
中图分类号
TD325
文献标志码
A
DOI
10.I3
545/j.cnki.jmse.2015.04.017
An analysis
of
extra-thick coal mining in
f1
uence on
ground surface deformation under the condition
of
massive conglomerate stratum in Changcun colliery
LI
Chunyi
1
,
CUI
Xirnin
2
,
HU
Qingfeng
3
,
HE
Rong
l
(1. Sehool
of
Surv
巳
ying
and Landing Information Engineering, Henan Polytechnie University,
Jiaozuo, Henan 454000 , China; 2. College ofGeoseience
and
Surveying Engineering, China University
ofMining
& Teehnology (Beijing), Beijing
100083
, China; 3. School ofResourees & Environment,
North China University ofWater Resources and
El
ectric Power, Zhengzhou,
Henan
450011
, China)
Abstract
In
order
to
research
ground
surface
deformation
law
of
extra-thick
coal
mining
under
the
condition
of
massive
conglomerate
stratum
,
according
to
probability
integral
model
,
3D
distributed
mathematical
functions to
determine
optimum
parameters
have
been
made
based
on
superposition
prin-
ciple.
In
response
to
ground
surface
movement
surveying
datum
of
2113
panel
of
Changcun
colliery,
surface
deformation
prediction
parameters
have
been
obtained
by
using
subsidence
and
horizontal
movement
functions.
Associated
with
engineering
geological
data
,
parameters
distribution
law
has
been
analyzed
from
overburden
terrane
movement
mechanism.
The
results
show
that first
weighing
interval
of
thick
conglomerate
is
367
m,
while
period
weighing
interval
of
cantilever
is 179
m.
Ground
surface
discrete
deformation
present
intensively
after
key-strata
collapses.
And
the
cantilever
bear
action
of
massive
conglomerate
stratum
mainly
causes
dissymmetry
subsidence
basin.
The
results are
in
accor-
收稿日期
2013-10-13
基金项目·国家自然科学基金项目
(41101520
,
41071328
,
51074064);
河南现
I
大学博
l
基金项目
(B20
11-025)
作者简介
李春意(1
979
一),男,河南省周口市人,副教授,仰
L
,从事柿、
ILIJf
采沉阳与岩
J
Z!
控制方面|的liJ!究。
E-mail:
Ii
chunyi2005@126.co
l11
TeI:
1823910286J