謅議某城市船閘輸水系統(tǒng)的設(shè)計(jì)
謅議某城市船閘輸水系統(tǒng)的設(shè)計(jì)
摘要:本文結(jié)合(JTJ 306-2001) 船閘輸水系統(tǒng)設(shè)計(jì)規(guī)范,介紹了某城市水利樞紐工程船閘的設(shè)計(jì)標(biāo)準(zhǔn)和要求,論述了船閘輸水系統(tǒng)的型式選擇、系統(tǒng)布置及水力計(jì)算和設(shè)計(jì)過程。該船閘選擇分散輸水系統(tǒng),經(jīng)過實(shí)際運(yùn)用,證明其設(shè)計(jì)經(jīng)濟(jì)合理的施工和維護(hù)。
關(guān)鍵詞:設(shè)計(jì)要求 ,安全技術(shù)指標(biāo) , 案例分析
Abstract: this paper (JTJ 306-2001) of water system design code, this paper introduces a city of hydraulic project design standards and requirements, discusses the water system of the type selection, the system arrangement and hydraulic calculation and design process. The choice of scattered water system, through actual application, to prove its economic and reasonable construction design and maintenance.
Key words: the design requirements, safety technology index, case analysis
1 輸水系統(tǒng)的設(shè)計(jì)要求和分類
1.1 船閘輸水系統(tǒng)應(yīng)包括進(jìn)水口、閥門段、輸水廊道、消能工和鎮(zhèn)靜段等。
1.2 輸水系統(tǒng)的設(shè)計(jì),應(yīng)滿足下列基本要求:
(1 )灌水和泄水時(shí)間;
(2 )船舶、船隊(duì)在閘室內(nèi)的停泊條件和引航道內(nèi)的停泊和航行條件;
(3 )船閘各部位在輸水過程中不至由于水流沖刷、空蝕、振動(dòng)等造成破壞。
1.3 對(duì)有雙向水頭、多線船閘或船閘與升船機(jī)共用引航道、多級(jí)船閘補(bǔ)溢水、設(shè)置中問渠遁、省水、防咸等要求的船閘;
1.2條規(guī)定外,尚應(yīng)滿足各自特殊的要求。
1.4 船閘輸水系統(tǒng)可分為集中輸水系統(tǒng)和分散輸水系統(tǒng)兩大類。輸水系統(tǒng)的類型可根據(jù)判別系數(shù)按式(1.4)初步選定。當(dāng)m>3.5時(shí),采用集中輸水系統(tǒng);當(dāng)m<2.5時(shí),采用分散輸水系統(tǒng);“與m為2.5-3.5時(shí),應(yīng)進(jìn)行技術(shù)經(jīng)濟(jì)論證或參照類似工程選定。