ӦС50%ƽˮƽȵƫΪ2 mm/m鶥ıӦʵʰװ
4.1.6ƽ鲼ӦҪ:
a)ÿһӦƽȣӴãӦ¶lOmm-30mm
b)ؽ˨ĵ飬ÿijȣӦؽ˨
c)ĵӴȲʱõλӦ֤ڵѹв
d}бĴӳӦСȫ3/4ƫбaӦ3㡣
4.1.8õƽԵӦ¼:
a)0.25 kg0.5 kgִûɽ̶ȣӦɶ b)0.05 mm飬֮ʼ֮ļ϶ڵͬһ洦ijܺͣӦ()ȵ1 /3
4.1.9ϸӦڵв䶨λΣ֮䲻úӡ
4.1.10װڽṹϵĻƽӦṹöλΡ 4.2װ
4.2.1װʱӦݻ͵ĽṹȷʱСǧﶥݶλú
4.2.2аװõݶʱӦҪ: a)ֵ֧ݶõ֧аú䶥ˮƽȵƫ
Ϊ2 mm/mӴС50%֧аĶƫСڡ5 mm
b)ݶ֧аĺ˴ݶֱ
c)Ϊ֧еĵݶijȣӦС˨ֱ
4.2.3ιཬﵽǿȵ75%ʱɵʱСǧﶥ˿ȡʱ֧żͬʱˮƽȣնʵ
PE˹ѹŷװװСǧﶥûϣʱ֧ź͵ˮƽȡеװ豸PĘװԹʽѹҶϩÿװıڰװʱҪװպϸǿȴﵽҪ75%ʱСǧﶥôĥ⻬úúؽ˨˨ףѹλ
5ؽ˨
ؽ˨ǿճͻڸֽϵĦ豸ι̵ӡ ĵؽ˨
һֱؽ˨ Ԥؽ˨ êʽؽ˨
ֳѹͱõһֱؽ˨Ԥеĵؽ˨һҪ:
a)ؽ˨Ĺ˲ӦۻƤƲӦͿ֬;
b)ؽ˨ԤӦֱ;
c)ؽ˨Ӧף˨ϵһλױڵľ벻С15mmС80mm d)šĸ˨Ӧ¶ĸ¶Ϊ2-4ݾࡣ e)ĸȦȦӦӴá 5. 2šؽ˨ӦԤڵĻﵽǿȵ75%ʱУšӦȡ
5.3ôêĵؽ˨ӦҪ: a)ؽ˨Ĺ˲ּê壬Ӧˢ;
b)ĸŵĸê壬êĸ֮Ӧλ̶ȡɴʩ
c)êֱӺڵؽ˨ʱǺ߶ӦСݸֱ1 /20
5.4Ԥĵؽ˨ӦҪ:
a)ؽ˨꼰ߴӦʩͼֽҪ b)ؽ˨¶Ӧֱؽ˨Ӧеÿؽ˨пɬ
Сǧﶥ
˹ѹõ8ؽ˨ڷֱ˨
һСǧﶥ4ǧﶥһлԺó20tгѹװλڵװλĹӦʹ߶ӦıߣԱݵĵ
ѹλûʲôر⣬dz豸ھλװʱһҪעⰴͼֳֽʵװϾλ豸ŷѭˮվ˫þͷ÷ˣҺüʱָཬӺܶĹӰ칤̽ȡ