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[1]熊婉麗,黃凡源,曹進,等.市政工程中不同出流方式下的多種井尺寸計算[J].中國給水排水,2021,37(22):79-83.
XIONG Wan-li,HUANG Fan-yuan,CAO Jin,et al.Calculation of Various Well Sizes under Different Outflow Modes in Municipal Engineering[J].China Water & Wastewater,2021,37(22):79-83.點擊復(fù)制
市政工程中不同出流方式下的多種井尺寸計算
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期數(shù): 2021年第22期 頁碼: 79-83 欄目: 出版日期: 2021-11-17
Title:Calculation of Various Well Sizes under Different Outflow Modes in Municipal Engineering
作者:熊婉麗，黃凡源，曹進，蔚成亮，張玉雪，王孝，林振興(中國市政工程中南設(shè)計研究總院有限公司，湖北武漢430010)
Author(s):XIONG Wan-li，HUANG Fan-yuan，CAO Jin，YU Cheng-liang，ZHANG Yu-xue，WANG Xiao，LIN Zhen-xing(Central and Southern China Municipal Engineering Design & Research Institute Co. Ltd., Wuhan 430010, China)
關(guān)鍵詞:配水井; 自由溢流; 有壓流; 折板豎井
Keywords:water distribution well; free overflow; pressure flow; baffle-drop shaft
摘要:市政工程中配水井、跌水井等構(gòu)筑物應(yīng)盡量避免水流撞擊井壁，并以此作為確定井最小尺寸的依據(jù)之一。井內(nèi)水流射程與水流的出流方式、運動狀態(tài)等有關(guān)。通過分析自由溢流、有壓出流下對井體尺寸的要求，得出：自由溢流可根據(jù)實用堰堰面曲線設(shè)計公式計算水流跌落水平距離；有壓出流可根據(jù)能量方程計算水流出口流速，以平拋運動公式計算水流水平距離；對于折板豎井，根據(jù)相關(guān)試驗的建議取值，推導(dǎo)出僅與設(shè)計流量相關(guān)的經(jīng)驗公式，可從滿足通氣要求及避免水流撞擊井壁兩方面確定豎井尺寸。
Abstract:In municipal engineering, water distribution well, falling well and other structures should try to avoid water hitting the well wall, and it is one of the criteria to determine the minimum size of the well. The range of the water flow in the well is related to the outflow mode and motion of the water flow. The requirements for the size of the well under free overflow and pressurized outflow were analyzed. For free overflow, the horizontal distance of the water drop was calculated according to the practical weir surface design formula. For pressurized outflow, the water outlet velocity was calculated according to the energy equation, and the horizontal distance of the water flow was calculated by the horizontal throwing motion formula. For a baffle-drop shaft, the empirical formula related only to the design flow rate that was derived according to the recommended value of the relevant tests, and the shaft size was determined from the two aspects of meeting the ventilation requirements and avoiding the impact of water flow on the shaft wall.
更新日期/Last Update: 2021-11-17
[1]熊婉麗,黃凡源,曹進,等.市政工程中不同出流方式下的多種井尺寸計算[J].中國給水排水,2021,37(22):79-83.
XIONG Wan-li,HUANG Fan-yuan,CAO Jin,et al.Calculation of Various Well Sizes under Different Outflow Modes in Municipal Engineering[J].China Water & Wastewater,2021,37(22):79-83.
點擊復(fù)制
XIONG Wan-li,HUANG Fan-yuan,CAO Jin,et al.Calculation of Various Well Sizes under Different Outflow Modes in Municipal Engineering[J].China Water & Wastewater,2021,37(22):79-83.
市政工程中不同出流方式下的多種井尺寸計算
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期數(shù): 2021年第22期 頁碼: 79-83 欄目: 出版日期: 2021-11-17
- Title:
- Calculation of Various Well Sizes under Different Outflow Modes in Municipal Engineering
- 摘要:
- 市政工程中配水井、跌水井等構(gòu)筑物應(yīng)盡量避免水流撞擊井壁，并以此作為確定井最小尺寸的依據(jù)之一。井內(nèi)水流射程與水流的出流方式、運動狀態(tài)等有關(guān)。通過分析自由溢流、有壓出流下對井體尺寸的要求，得出：自由溢流可根據(jù)實用堰堰面曲線設(shè)計公式計算水流跌落水平距離；有壓出流可根據(jù)能量方程計算水流出口流速，以平拋運動公式計算水流水平距離；對于折板豎井，根據(jù)相關(guān)試驗的建議取值，推導(dǎo)出僅與設(shè)計流量相關(guān)的經(jīng)驗公式，可從滿足通氣要求及避免水流撞擊井壁兩方面確定豎井尺寸。
- Abstract:
- In municipal engineering, water distribution well, falling well and other structures should try to avoid water hitting the well wall, and it is one of the criteria to determine the minimum size of the well. The range of the water flow in the well is related to the outflow mode and motion of the water flow. The requirements for the size of the well under free overflow and pressurized outflow were analyzed. For free overflow, the horizontal distance of the water drop was calculated according to the practical weir surface design formula. For pressurized outflow, the water outlet velocity was calculated according to the energy equation, and the horizontal distance of the water flow was calculated by the horizontal throwing motion formula. For a baffle-drop shaft, the empirical formula related only to the design flow rate that was derived according to the recommended value of the relevant tests, and the shaft size was determined from the two aspects of meeting the ventilation requirements and avoiding the impact of water flow on the shaft wall.
更新日期/Last Update: 2021-11-17
