<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet href="http://www.blogger.com/styles/atom.css" type="text/css"?><feed xmlns='http://www.w3.org/2005/Atom' xmlns:openSearch='http://a9.com/-/spec/opensearchrss/1.0/'><id>tag:blogger.com,1999:blog-1095469466403255308.post1804190403588478567..comments</id><updated>2009-08-31T03:55:18.078+06:30</updated><title type='text'>Comments on New Generation of Metropolitan: ဥမင္၏ လွ်ပ္စစ္ႏွင့္ စက္မႈဆိုင္ရာ လုပ္ငန္းမ်ား</title><link rel='http://schemas.google.com/g/2005#feed' type='application/atom+xml' href='http://www.mymetroworld.org/feeds/1804190403588478567/comments/default'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default'/><link rel='alternate' type='text/html' href='http://www.mymetroworld.org/2009/02/blog-post_18.html'/><author><name>MyMetro</name><uri>http://www.blogger.com/profile/01117893258730069019</uri><email>mymetroworld@gmail.com</email></author><generator version='7.00' uri='http://www.blogger.com'>Blogger</generator><openSearch:totalResults>4</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage><entry><id>tag:blogger.com,1999:blog-1095469466403255308.post-1184240113471415506</id><published>2009-08-31T03:55:18.078+06:30</published><updated>2009-08-31T03:55:18.078+06:30</updated><title type='text'>ဥမင္ ပင့္ေထာက္ျခင္း (tunnel supporting) မွာ ယာယီနဲ...</title><content type='html'>ဥမင္ ပင့္ေထာက္ျခင္း (tunnel supporting) မွာ ယာယီနဲ႔ အၿမဲတမ္း (temporary &amp;amp; permanent) ဆိုပီးႏွစ္ပိုင္းရွိပါတယ္။ ယာယီပင့္ေထာက္ျခင္းကိုေတာ့ ဥမင္တူးပီးပီးျခင္း အၿမဲတမ္းထားမယ့္ support မတပ္ခင္မွာ သံုးတာပါ။ permanent support ကိုေတာ့ tunnel lining အျဖစ္သံုးႏႈန္းပါတယ္။ ဥမင္နံရံလို႔ပဲ ဆိုၾကပါစို႔။ tunnel lining ဒီဇိုင္းတြက္တဲ့အခါ ဥမင္ဟာ အခ်ဳိးညီဥမင္ (symmetric) ျဖစ္ရင္ ဥမင္ရဲ႕ အလယ္ကေနပိုင္းပီးေတာ့ တျခမ္းအတြက္ပဲ တြက္ရင္ရပါတယ္။ &lt;br /&gt;&lt;br /&gt;ပထမဆံုး Tunnel lining ရဲ႕ အလယ္ (ဥမင္နံရံ အထူရဲ႕ တဝက္) မ်ဥ္းကို ဆြဲပီး အဲဒီမ်ဥ္းကို အပိုင္းငယ္ေလးမ်ား အျဖစ္ပိုင္းလိုက္ပါတယ္။ ဥမင္နံရံ lining ဆိုတာ မ်ဥ္းပိုင္းေလးေတြနဲ႔ ဆက္စပ္ဖြဲ႔စည္းထားတဲ့ သေဘာေပါ့။ အပုိင္းမ်ားမ်ား ပိုင္းေလ အေျဖတိက်ေလပါပဲ။ အဲဒီမ်ဥ္းပိုင္းေတြေပၚကို ပတ္ဝန္းက်င္ေျမထုသက္ေရာက္အားေတြ တင္ေပးလိုက္တယ္။ အဲဒီအားေတြကုိ distribution load အျဖစ္ကေန node တစ္ခုခ်င္းစီ ေျပာင္းလိုက္တယ္။ တြက္တဲ့အခါ သမ႐ိုးက်နည္းေတြ ျဖစ္တဲ့ Force method, distribution method နဲ႔တြက္လို႔ရသလို၊ အခုေနာက္ဆံုး finite element method နဲ႔တြက္လဲ ရပါတယ္။ တြက္လို႔ရလာတဲ့ အေျဖကို မွန္မမွန္ ေနာက္ဆံုးမွာ ျပန္ပီးစစ္ေပါ့။ အဲဒီသေဘာပါပဲ။ ဒီဇိုင္းပါရာမီတာေတြက ေျမထုရဲ႕ specific weight, poisson’s coefficient, young modulus, စတဲ့ တန္ဖိုးေတြနဲ႔ အေျခခံရတာပါပဲ။ finite element computer program ေတြမွာဆိုရင္ေတာ့ အဲဒီတန္ဖိုးေတြကို မွန္ကန္စြာ ထည့္ေပးဖို႔နဲ႔ သေဘာတရားကို နားလည္ဖို႔ပဲ လိုတာပါ။ tunnel supporting calculation ပိုင္းက ရွင္းျပရတာ ခက္ေတာ့ အခု အတိုခ်ဳံးပီး ရွင္းျပလိုက္ပါတယ္။ မရွင္းလင္းေသးရင္ ထပ္ပီး ေဆြးေႏြးၾကတာေပါ့ဗ်ာ။ &lt;br /&gt;&lt;br /&gt;ေအာက္ကလင့္မွာ တခ်က္ဝင္ဖတ္ၾကည့္ပါ။ &lt;br /&gt;http://www.mymetroworld.org/2008/02/tunnel-metro-design-method.html&lt;br /&gt;&lt;br /&gt;ပံုေတြ မျမင္ရဘူးဆိုရင္.. ေအာက္ကဖိုင္ကို ေဒါင္းပီးဖတ္လဲ ရပါတယ္&lt;br /&gt;http://www.mediafire.com/?d7zossyklfs</content><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default/1184240113471415506'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default/1184240113471415506'/><link rel='alternate' type='text/html' href='http://www.mymetroworld.org/2009/02/blog-post_18.html?showComment=1251667518078#c1184240113471415506' title=''/><author><name>MyMetro</name><uri>http://www.blogger.com/profile/01117893258730069019</uri><email>noreply@blogger.com</email><gd:extendedProperty xmlns:gd='http://schemas.google.com/g/2005' name='OpenSocialUserId' value='08651743619029097457'/></author><thr:in-reply-to xmlns:thr='http://purl.org/syndication/thread/1.0' href='http://www.mymetroworld.org/2009/02/blog-post_18.html' ref='tag:blogger.com,1999:blog-1095469466403255308.post-1804190403588478567' source='http://www.blogger.com/feeds/1095469466403255308/posts/default/1804190403588478567' type='text/html'/></entry><entry><id>tag:blogger.com,1999:blog-1095469466403255308.post-6356379614989984032</id><published>2009-08-30T22:22:59.720+06:30</published><updated>2009-08-30T22:22:59.720+06:30</updated><title type='text'>ေတာ္ေတာ္ေလး ပညာရပါတယ္အကို။ ကြ်န္ေတာ္က အခု geotechn...</title><content type='html'>ေတာ္ေတာ္ေလး ပညာရပါတယ္အကို။ ကြ်န္ေတာ္က အခု geotechnical ပိုင္းကိုေလ့လာေနတာပါ။ Phase2 2D software နဲ႕ 3D က Flac3D software ကိုသံုးပါတယ္။ 2D ကလြယ္ေပမယ့္ 3D မွာ Tunnel supporting calculation ပိုင္းကို သိပ္သေဘာမေပါက္ဘူး ျဖစ္ေနလို႕ အကို သိရင္ကူညီလို႕ရမလားခင္ဗ်ာ</content><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default/6356379614989984032'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default/6356379614989984032'/><link rel='alternate' type='text/html' href='http://www.mymetroworld.org/2009/02/blog-post_18.html?showComment=1251647579720#c6356379614989984032' title=''/><author><name>examplez</name><uri>http://www.blogger.com/profile/13258412476844112312</uri><email>noreply@blogger.com</email></author><thr:in-reply-to xmlns:thr='http://purl.org/syndication/thread/1.0' href='http://www.mymetroworld.org/2009/02/blog-post_18.html' ref='tag:blogger.com,1999:blog-1095469466403255308.post-1804190403588478567' source='http://www.blogger.com/feeds/1095469466403255308/posts/default/1804190403588478567' type='text/html'/></entry><entry><id>tag:blogger.com,1999:blog-1095469466403255308.post-3848430505540057572</id><published>2009-02-20T21:24:00.000+06:30</published><updated>2009-02-20T21:24:00.000+06:30</updated><title type='text'>ေနာက္မ်ား အလ်င္းသင့္သလို ေရးေပးမယ္ ညီမေလးေရ</title><content type='html'>ေနာက္မ်ား အလ်င္းသင့္သလို ေရးေပးမယ္ ညီမေလးေရ</content><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default/3848430505540057572'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default/3848430505540057572'/><link rel='alternate' type='text/html' href='http://www.mymetroworld.org/2009/02/blog-post_18.html?showComment=1235141640000#c3848430505540057572' title=''/><author><name>MyMetro</name><uri>http://www.blogger.com/profile/01117893258730069019</uri><email>noreply@blogger.com</email><gd:extendedProperty xmlns:gd='http://schemas.google.com/g/2005' name='OpenSocialUserId' value='08651743619029097457'/></author><thr:in-reply-to xmlns:thr='http://purl.org/syndication/thread/1.0' href='http://www.mymetroworld.org/2009/02/blog-post_18.html' ref='tag:blogger.com,1999:blog-1095469466403255308.post-1804190403588478567' source='http://www.blogger.com/feeds/1095469466403255308/posts/default/1804190403588478567' type='text/html'/></entry><entry><id>tag:blogger.com,1999:blog-1095469466403255308.post-3639992479410520792</id><published>2009-02-20T20:14:00.000+06:30</published><updated>2009-02-20T20:14:00.000+06:30</updated><title type='text'>ဗဟုသုတမ်ားကုိ မ်ွေ၀ေပးတဲ့ အစ္ကုိႀကီးကုိ ေက်းဇူးတင္...</title><content type='html'>ဗဟုသုတမ်ားကုိ မ်ွေ၀ေပးတဲ့ အစ္ကုိႀကီးကုိ ေက်းဇူးတင္ပါတယ္...&lt;BR/&gt;အစ္ကုိႀကီးစိတ္မရွိဘူးဆုိရင္ ေရးေပးပါလုိ ့ေတာင္းဆုိပါတယ္.........&lt;BR/&gt;တကယ္လုိ ့Tunnel တစ္ခုတည္ေဆာက္ျပီးလုိ့ရွိ္ရင္,ျပဳျပင္ထိန္းသိမ္းရတယ္ မဟုတ္လား။ (Maintenance)ေပါ့အစ္ကုိႀကီး..&lt;BR/&gt;အဲဒီအခါ...Tunnel ရဲ့ Building Defects က တုိက္တာအေဆာက္အအုံေတြရဲ့ Buidling Defects နဲ့ သိပ္မတူနုိင္ဘူးလို့ထင္ပါတယ္ အစ္ကုိႀကီး...ဘယ္လုိ Defects မ်ဳိးေတြ အမ်ားဆုံးျဖစ္ေပၚတက္သလဲဆုိတာ..ျပီးေတာ့ ဘယ္လုိ  Maintenance မ်ဳိးေတြ လုပ္သင့္သလဲဆုိတာ ...အစ္ကုိႀကီးေလ့လာထားသေလာက္ ရွင္းျပေပးပါလုိ ့ ေတာင္းဆုိပါတယ္အစ္ကုိႀကီး...(တကယ္ေတာ့ ဒီ post နဲ့ သိပ္မဆုိင္ပါဘူး..အစ္ကုိႀကီး တင္ထားတဲ့ ေရေပးေ၀ျခင္း Title နားက Tunnel ပုံကုိ ျမင္လုိ ့ ေမးမိတာပါ အစ္ကုိႀကီး......)</content><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default/3639992479410520792'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/1095469466403255308/1804190403588478567/comments/default/3639992479410520792'/><link rel='alternate' type='text/html' 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