ֽʵ12ַ
ֽʵ12ַҪֽϴϷڸֽУͬһֹֽжϳߴ硣ӦϵеȺ˳ϣͨ ྫƷ
ֽʵ12ַ
ֽǽҵϴֵϸߵһԭϣܷýʣѾΪĿܷӯĹؼ㣬һ潵ֽһֱ˾⡣ԭĿֻмЧĿûпԵĿƳɱĴʩֻгɱĿûаĿֽ½ڵ㡢ܽڵĿпƣ֮ǣȫĹδѧֻпͷߵȴ֪ȥִУdzɱƵĹؼ
õһѧֽϵͨĿڶͼֽϵԸֹĸֽвϲɹһִϵDZһͬǿȵȼֱͬĸֽɳ̵˳һУȥһЩɣϹɡϹɡϹɵȵȣȻپ£ һֽѡϷ
һֽĽϳԽԽãʱٳϣٷ϶ͷ˺ӳʱܼٽͷʵʹУҪĸֽǧҪý϶̵߸ֽϺͷٻΪ㣬ӦڲɹֽʱϵмʵԸֽijȽѡ
1ijͼӹ¥ç25ֽϳȻ,10mֽ϶ͷ١
2ijͼӹ¥ç12ֽϳ4,5,Ȼ,Ӧ9mֽǣÿΪ9m/4=,1ֽ2cmɡ
3ij¥2㣬ԺӳӦгȵĸֽͷ2ΪԺϣһ㳤ȵͬڲߣ迼ǶԺʴ˴Ϊ9m߸ֽȡijֽԺֻ3¶ͷȱ2¶ͷ1cm°2ֽķãӦѡ9mֽ
4ĺӽͷ50%ˣͷ12mֽ⣬Ӧһ9mĸֽ
ֻ12mֽŲɹѡ ֽϴϷ
ڸֽУͬһֹֽжϳߴ硣ӦϵеȺ˳ϣͨӦеĹȽسϣϡǸֽʱʡֽһԭ
ij¸ؽֳ9m25ֽ ٺŽںŽ
ϵϵ˳ֱ,ڽآٺŽʱ600mmͷ;ڽآۺŽʱ,ʣֽ,ô䷨¢ٽ,ֻ10cmͷ. ֽݸֽϵıһϵ ˼ֽϷ
ijæ83000ϳ
ڵֱձʹ֮ǰĵֱӹһǣýĥֱôӻֽжϻȶϳȻȡִĶͷȷǣֱȼ5=,ֱĸֽϽȡ600ֱ,Ȼٽȡ,жͷ
֡
ֱȽȡ9m12mֽȻ ġӼֽϷ
ijֳȵħ25ֳֽ12mֽ +=
Ȼ,112mֽϿɽȡͳֽһ,ȷֱȡָֽ,ɼٶ̸ֽͷ
塢ϼֽϷ
磺ij¥Ҫֳȵħ20ֳ12mĸֽ ٧ڧ20 2+=
һ12mֽϽȡ2ֽһֽΪϷ
ڸֽʱΪ˼ٸֽͷҪӷͻϷϡַжϳߴĽϴָֽϣǿܽṹоõϷ ²ֽϷ
ij¥Ϊ,ҪԺڶ650mmĸֽͷڳ9m12m߸ֽϽȡдķ϶ͷͷ֡ѵڶ㣬ܳΪ+=,Ƶڶȡ,ȡ4m,+4m=,Ժڵ㶥¶650mm+100mm-230mm=690mmĸֽͷ.ûжͷ,Ҳ˶ͷֽٽӳĺӡ
ߡʽáֽûõĸֽϷ
ɽĿԤӦĸֽç8200ˮƽȡüֱͬ600mmĹÿ10mĿɽԼ10m
ɽĿԤӦĸֽç12ֽϣΪ̶ֽ³ȫûѧֻѧ12ֽ빿λĻעȡǧԼ4000mֽ ˡһλֽϷ ijСÿסլ¥Χ66һӵײΪⶥ,ÿ616ֽ.Ҫڻϡ
ӵʱϰڰÿӵ˦ϣӣڽһʩʱϽӳΪסլ¥ṹͼ¥ṹͼʾӵͼDz̫עӵϰϡ鿴ӷϵ
ֽʵ12ַҪֽϴϷڸֽУͬһֹֽжϳߴ硣ӦϵеȺ˳ϣͨ ྫƷ
ͻ֣ᷢڷ˦ĽϸͷӶֻСԿϴӻֱӵˣֻܹг,һλ˽ͷҲʡȥ˼ܹԤȰǼʱӦһΰѹ꣬ʡ˹ҹб֤ ɴ˿ɼȡһλϣۺϾЧdzɹۡ š̳߶ֽϷ
еĸֽ̲ܽ뵫ϸĸֽȴ7m£Ը
ҪȡֳȵĶϣ۸ҲָֽϣͷҲʡ֧˻ежϷãԵҪֽʱԸϵǰʱ ʮĽͷֽϷ
סլ¥ȦӳðӣúӷӳȽʡ˰ȵĸֽҲʡ˼ܹۺӸֽ˹ѡѼ纸õĽͷô֣ɽʡ ʮһ϶̸ֽͷʹϷ
ij¥ͷç20ؽϳ;ֱֳ222mҵĶ̸ֽͷԽȡ22̸ֽͷ槶20ֽʹ.,Ϊ,ھʵʩʱ˽һʹ. ʮͷͷֽϷ
ijסլ¥ƬΪ12ֽӡֳ12mֽ
ʩ淶涨ͷͬһڵİٷʲ25%Ƭֽͷ4ӳȵĸֽΪһ飬ȻƽСΪֶͷɰ·ͷ Ƚȡ+=12m .2m+10m=12m .3m+9m=12m .4m+8m=12m .5m+7m=12m
ȡ飬һ飬Ҳ12mֽΪÿһĵ5ʱÿһͷһڲʱСͷûж̸ֽͷ ڿ¥ͷʱֳֻһֳȵ߸ֽ߸ֽһΪ߸ֽ50%ͷ