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地铁基坑降水方案 - 百度文库

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Ŀ ¼

һ ..................................................... 1 ̸ſ ..................................................... 1 ˮʩ ................................................. 3 3.1ˮ ............................................... 3 3.2 ˮĿ ................................................... 4 3.3ˮ뾮㲼 ......................................... 4 3.4ˮṹʩ ........................................... 5 3.5ˮйܾ ..................................... 7 3.6Ӳдˮų ......................................... 8 ġ֤ʩ ................................................. 9 塢ȫ֤ʩ ................................................ 11 ʩʩ .................................... 14

йͨ1߹̣һΣվӽˮʩ

վӽˮרʩ

һ

Թй淶ҵ׼صط׼Ϊϸաйͨ1߹ʩͼƵƪվ̵һվڶֲṹˮһֳվΧṹʩͼзơ 1.1Ҫ淶׼

(1)·콻̲ͨ淶 (GB503081999) (2)¹̷ˮ淶(GB501082008) (3)·ˮչ淶 (GB502082002) (4)ػʩչ淶 (GB502022002) (5)֧淶(JGJ12099) (6)ӹ̼⼼淶(GB50497-2009) (7)̿淶(DBJ13-84-2006)

(8)ʩչ淶 (GB502991999)(2003) (9)β淶 (JGJ82007) (10)ʩȫ׼(JGJ59-99)

(11)蹤ʩֳõ簲ȫ淶GB50194-93 (12)ʩֳʱõ簲ȫ(JGJ46-2005) (13)еʹðȫ׼(JGJ33-2001)

̸ſ

2.1̸ſ

վΪ1վλڸ壬·áվ·ȷվʽΪ㵺ʽվվΪľС塢ѧȣΪСѧסլСȡSK0+383.717ṹߴ磺420m20.8m26.6mΧʽõǽǽˮC35ԼΪ16.1m26m֧ʽΪһϱ˶˲øֽ֧ţΪ609ֹ֧šվΧṹ800mm1000mmǽڵǽ

йͨ1߹̣һΣվӽˮʩ

øֽѹΪ8001000mm10001000mm10001100mmʽǽǶΪ68ףӰȫȼΪһοƱȼΪ1Χˮƽλơ1.5Hҡ30mm1.5HHΪտȣ

2.2 εò

ҪɺͺˮٻɣֲзɳѻɡҪֲκͱڵɽطкӹƽԭ̬ɷΪƽԭ--ƽԭƽԭ--ƽԭƽԭӹƽԭѻһΪ3040ףֲٹɽ߶ȷΪ15ס3545ס70120ײȣβ20ס

2.3 ̵

ļվ϶Ϊ1-11-36ʯ7ۣɰճ13-aлɰʣճ14ȫ绯ң15ɢ״ǿ绯ң16״ǿ绯ң 17еȷ绯ҡصȶȶԽϺãͼ2-1վ̵ͼ

2.4 ˮĵ

վطΧбϪԽصϴʩڼ䳵վṹڵȵķˮλӦڽһоȷϷֺ

2.5 ˮλ

dzвˮͿɷΪϲˮѹˮDZˮϲˮҪdzӣأУΪ϶ˮˮҪܴˮرIJʽйݸе飬òˮλһ1.03.0m䣬ˮλ仯Լ13mѹˮDZˮҪdzʯ㼰µIJлȫ绯ǿ绯ҲУܴˮر漾ԡ仯仯ˮλ仯Լ26mˮ㴦ڸˮλˮͷϲˮ壬ˮгѹԣˮ㴦ڵˮλʱˮͷϲˮ壬ˮתΪѹDZˮ

2.6ѧָ2-1

йͨ1߹̣һΣվӽˮʩ

2-1 ػѧָ

ֹѹϵ K0 0.35 ֱϵKv MPa/ m 80 30 50 60 80 110 ϵm MN/ m4 14 7 8 10 14 25 ػֵfak kPa 80 400 180 220 350 500 900 6000 ز ضȦ KN/ m3 ϶e ˮw ֱ̿׼ֵC ͸ϵK % kPa 10 8 10 O 11 9 36 m/d 5 0.01 0.08 0.15 0.25 0.30 1-1 1-3 6 7 13-a 14 15 16 17 ʯ ճ л(ɰ)ճ ȫ绯 ɢ״ǿ绯 ״ǿ绯 еȷ绯 18.0 16.5 21.0 18.8 0.806 26.5 18.3 18.9 0.45 17.7 1.061 37.0 19.0 19.5 20.5 26.9 9 15 25 65 120 23.8 0.45 28 32 36 42 0.40 0.35 0.25

2.7 ̵ۼע

̰ȫȼΪһݵʱ棬ײִʯز㡣ˮ̲طḻм䲿ֻλڲлɰʣճȫ绯ңˮŶ⣬Ϊȷлɰʣճڸ¿ڣʩڼԸõزȡˮʩ֤õزڸĻ¿ڣСŶ

ˮʩ

3.1ˮ

¸ijѹˮԽdzسѹˮˮͷߡˮλ㣬ڳվʩʱͻӿΪȷʩڼ䰲ȫӦԳصˮΣȡЧʩдּöԱȷʩͼơϣóصijѹˮΪ(ܾ)ˮ

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