5ʩ
5.1 ʩ
5.1.1 Աͬⵥλܵܳа̽вƼˮ׼Ľ׮׮ʱ֯Աˮ׼бպϸ⣬ֳ豣װòÿƵ¼
5.1.2 ʩǰҪ׼Ĺߵλú͸̣߳Ƹ߳ìʱɽʩ
5.1.3 ʩִжƶȣڼ飬ʩԭʼ¼ʱп
5.2 ʩ
5.2.1 ǰҪ˽⽻ڵ״߼ϰԱ㿪ʱȡƼӹ̱ʩ
5.2.2 еۣ۵Ԥ20cm˹۵ףȷ۵ԭŶ
5.2.3 ¶Ϊ1:0.335mʱ¶Ϊ1:0.5ʲã¶ҪŴλޣֹ֧ۣ۶ͼ
5.2.4 ۺڽ֮ǰӦԼйԱơ׷ۣϸ󷽿ɽµ
5.3 ܵʩ
5.3.1 DN200HDPEܲģܵӿڲúӵʽӣܵʩӦϸաˮˮܵʩչ淶GB50268-97Ҫʩ
5.3.2 ܲļҪ
5.3.2.1ʩʹõĹܲģܼӦֱӦˮPEܡGB13663-2001Ҫ󣬹ܵʹõķź͹ܼѹȼӦڹܵѹ1.5Ͻ¹ǰҪԹܲļм飬
֤ʵļ顣
5.3.3 ܲļʹ
5.3.3.1 ܲ䡢װжѷŹϽӻײӦⱬɹ
5.3.3.2 PEܹܲġѷʱӦƽʵѷŸ߶Ȳ˳1.5ס
5.4 ܵӦڹױߺ͹ܵϸнУܵǰҪԹܲġܼ½һۼ飬Ĺܲġܼòá
5.5 ܲĵ¹ܣ
5.5.1ܲڵ˼빵ʱӦӦÿɿߣƽ¹빵ڻ򹵵׾ײ
5.6 ܵĺӲHDPEרúʩ
5.7 ÿ°ǰʱ£ֹˮݡ
5.8 ѹʱ֧ι̣ݹ̽չɷֶδѹ
5.9 ˮѹӦڹǻСˮѹǰӦˮʩԱѹڴˮų
5.10 ѹʱڹܶ˸Ƕ¼ߵ㰴Ҫס
5.11 ˮѹպϸ־
5.12 ܵѹϸ󣬱гϴɽʹá
5.13 ˨ݷҽ׼ͼˮˮ̡S1еҪ
5.14 שʩ
5.14.1 שɰǿȣȼϸҪ
5.14.2 ʱҪɰҷƽ˳
5.14.3 שʱҪ鴹ֱȣʱɨǽ档
5.14.4 ĨҪĨѹʵпչġѷ죬ǰװӦ·ƽӡ
5.15 ˮѹʵ飻
5.15.1 ˮѹʵӦڹܵպϸҹܹܶ50cmУطͷͨӦܶ100cmҶ˸5mķΧ֧ǿȴﵽҪ
5.15.2 ѹܶС1
5.15.3 ܵѹͷä壩Ӧ㹻İȫϵرܵȻΪѹ °֮ԲľľǧﶥΪ֧ϵͳ߸ߵ㲻ĵ㡢ͷ
5.15.4 ˮݣעˮݣܵע󣬱0.2~0.3Mpaˮѹֽݣʱ䲻С24hѹ0.2MpaһΣټѹӽ1Mpaʱȶһʱ飬׸ɾȻ1Mpaʵѹֺѹ10minѹ0.05MpaԽӿڡ©ˮΪϸʹ÷ˮˮѹʵ顣
5.15.5 ˮѹʵ׼ѹ׼1Mpa
5.15.6ʽˮ
q= w/T1-T21000/L
q-ʵˮ//
W-T2ʱڷųˮL
T1-ʵѹ½0.1Mpaʱ䣨min
T2-ˮʱʵѹ½0.1Mpaʱ䣨min
L-ʵγ
5.16 
5.16.1 ڹܵװɣպϸУ۵Ҫɾ
5.16.2 ʵȱ׼ǻ֣ͻʵ95%ܶ50cmڣͻʵ85%ܶ50cm棨ͻʵ95%
5.16.3 ǻܶ50cmΧܵõ֧ջŹǿȴﵽǿȵ70%ʱܻܵҪͬʱ߲ô20cm,𻵹ܵĨӿڼ㣻ʱвúשʯ߿顢ܵײǲλľر𹤾ϸɰʵܶ50cmڣҪʹľʵÿ̺ȣͨѹʵÿ㲻20cm;ۻ˳򰴹ˮɸͷֲС
5.16.4 ҵȸͬʱУܺʵ޷к֮Ҫʱɻͱš
5.16.5 뱾߽߻ʱҪƴ
5.17 ܵǰ밴涨ճ־
5.18 ܵϴ
5.18.1 ϴʱӦˮСˮѹƫߵҹУ֪ͨйصλˮС1.5/M/SϴӦУųڵˮɫ͸ڴĿһ¼Ϊϸ񣬾ϸ󷽿ͨˮ
5.18.2 ϴʱϴˮ10%ҺʱҪȫͱƷ