南翼采區(qū)通風系統(tǒng)優(yōu)化與通防保障技術研究階段性報告兗礦集團濟寧二號煤礦山東科技大學二〇一三年九月目錄TOC\o"1-2"\h\z\u1礦井概述 12礦井通風阻力測定與分析 22.1測前準備工作 22.2通風阻力解算方法 32.3測定路線選擇及測點布置 62.4阻力解算 102.5通風阻力測定結果分析及評價 272.6礦井通風改造技術措施 303主要結論和建議 35南翼采區(qū)通風系統(tǒng)優(yōu)化與通防保障技術研究階段性報告1礦井概述濟寧二號煤礦是兗礦集團有限公司(以下簡稱兗礦集團)在濟寧建設的現(xiàn)代化礦井，位于濟寧市任城區(qū)境內(nèi)、濟東煤田的中部。濟寧二號煤礦的通風方式為中央并列式，通風方法為抽出式，礦井現(xiàn)布置有3個井筒，主、副井進風，中央風井回風。主要通風機為2臺上海鼓風機廠生產(chǎn)的GAF31.6-15.8-1型軸流式通風機，1臺工作，1臺備用，電機功率為1600kW。礦井2012年6月核定通風能力為560萬t/a，目前礦井總進風量16285m3/min，總排風量16586m3/min，礦井現(xiàn)在布置有2個采煤工作面、1個備用工作面和13個掘進工作面。南翼采區(qū)通風系統(tǒng)優(yōu)化與通防保障技術研究階段性究報告2礦井通風阻力測定與分析礦井通風阻力測定是通風技術管理工作的重要內(nèi)容之一，通過阻力測定可掌握通風系統(tǒng)現(xiàn)狀及必要的技術參數(shù)，為礦井通風系統(tǒng)優(yōu)化和日常的通風管理工作提供準確的技術資料和基礎數(shù)據(jù)。2.1測前準備工作(1)測定路線的選擇根據(jù)測定的要求和目的，結合該礦的生產(chǎn)布局和通風系統(tǒng)的現(xiàn)狀，選擇1條風流路線長，風量大且包含采煤工作面，能反映礦井通風系統(tǒng)特征的路線作為主測路線，如有需要再選擇其他路線作為輔測路線。(2)測點布置測定路線選定后，即可按照通風阻力測定的要求，結合本工作面巷道布置的具體條件，在通風系統(tǒng)示意圖上確定出測點的位置和數(shù)量，并沿測定路線將測點依次編號。在確定測點布置時一般應遵守下述原則：①測點布置在風流穩(wěn)定，巷道規(guī)整的地點，測點前后支護完好，巷道內(nèi)無堆積物；②在風流分叉、匯合及局部阻力大的地點；③測點與風流變化點之間應有一定的距離；④測點應盡可能選在標高控制點附近。在井下實測時，還應據(jù)現(xiàn)場的實際情況對個別測點進行調(diào)整，甚至臨時性的增加或減少一些測點。以便使測點的選擇能有效的控制主要巷道和工作面的阻力分布情況。(3)測定儀器此次通風阻力測定所用各種設備儀表如表2.1所示：

表2.1阻力測定使用設備儀表一覽表儀器名稱規(guī)格型號數(shù)量精密數(shù)字氣壓計JFY-14風表高、中、微速3×2干濕溫度計DHM22秒表J9-2Ⅱ2皮尺0～10m2計時表/2(4)測定方法采用精密氣壓計逐點測定法，即將一臺精密氣壓計放置在地面井口附近，作為基點氣壓計，監(jiān)視地面氣壓變化情況。另將一臺氣壓計沿測定路線按選定的測點進行測定，稱為測點氣壓計。基點氣壓計每隔5分鐘讀數(shù)，測點氣壓計在各測點每逢5或10分鐘讀數(shù)，測點氣壓計讀數(shù)和基點氣壓計讀數(shù)時間相對應，以反映地面氣壓變化對測點讀數(shù)的影響，保證測點測定結果的可靠性，在各測點測定風流壓力的同時，應測量巷道的風速、斷面尺寸、氣象條件等。如此依次測定全部的測點，待測點氣壓計返回至井口時再重新校對儀器讀數(shù)，以檢查儀器的誤差。至此測定完畢，并記錄各測點原始數(shù)據(jù)。2.2通風阻力解算方法(1)空氣密度用風扇濕度計和精密氣壓計分別測定各測點的干、濕球溫度與大氣壓力，按下式計算測點的空氣密度。(2.1)式中：——空氣的密度，kg/m3；——空氣的絕對靜壓，KPa；——飽和水蒸汽的絕對分壓，KPa；——空氣的相對濕度，%；——空氣的絕對溫度，，K。(2)巷道斷面積測點巷道斷面積按下式計算：梯形、矩形巷道：(2.2a)三心拱、半圓拱巷道：(2.2b)式中：SL——巷道斷面積，m2；BL——巷道寬度或腰線長度，m；HL——巷道全高，m。(3)測點風速測點的風速由測出的表速按下式換算成真實風速：(2.3)式中：——測點風速，m/s；——巷道斷面積，m2；0.4——人體側面積，m2；、——風表校正系數(shù)；——表速，m/min。(4)測點速壓(2.4)(5)測點間風量的確定如圖2.1所示，兩測點間巷道通過的風量按如下原則確定：①兩測點間巷道沒有分岔(圖A)，巷道通過的風量取兩測點風量的平均值，即：(2.5a)②在風流分岔點前設置測點(圖B)，則通過兩測點間巷道的風量取后一測點的風量，即：(2.5b)③在風流分岔點后設置測點(圖C)，則通過兩測點間巷道的風量取前一測點的風量，即：(2.5c)112圖A12圖B12圖C圖2.1風量測定測點布置圖(6)兩測點間巷道的阻力計算用精密氣壓計逐點測定時，兩測點間的靜壓差按下式計算：Pa(2.6a)兩測點的位壓差：Pa(2.6b)兩測點的速壓差：Pa(2.6c)則兩測點間的通風阻力為：Pa(2.6d)式中：、——分別為精密氣壓計在巷道前后測點、上的讀數(shù)，mmH2O；、——井下氣壓計讀取、時，基點氣壓計讀數(shù)，mmH2O；、——測點、的標高，m；、——測點、的空氣密度，kg/m3。(7)巷道風阻、百米風阻計算①巷道風阻kg/m7(2.7)②百米風阻kg/m7(2.8)式中：——測點、間巷道的長度，m。(8)礦井通風總阻力的計算礦井通風總阻力為進風井口到扇風機吸風口之間各巷道所測的通風阻力之和，即：Pa(2.9)式中：——從進風井口到扇風機吸風口之間所測巷道的個數(shù)。(9)礦井自然風壓的計算礦井自然風壓按照測定路線從進風井到回風井全部測點的位壓之和，可按下式計算：Pa(2.10)2.3測定路線選擇及測點布置本次礦井南翼通風阻力測定，根據(jù)測定的要求和目的，結合該礦的生產(chǎn)布局和通風系統(tǒng)的現(xiàn)狀，選擇了一條風流路線長、風量大，且包含采煤工作面，能反映通風系統(tǒng)特征的路線作為主測路線，同時選擇了兩條輔測路線和一條補測路線。主測路線(11309工作面通風系統(tǒng))：副井口—副井底—南翼軌道大巷—南翼軌道下山—南翼-740水平軌道大巷—11309軌道順槽—11309工作面—11309運輸順槽—南翼-740水平二部膠帶輸送機大巷—南翼-740水平膠帶輸送機巷—南翼膠帶輸送機下山—南翼回風大巷—風井—地面風硐。輔測路線1：南翼輔助進風大巷—南翼進風下山—九采輔助膠帶輸送機巷—南翼-740輔助運輸巷—南翼-740輔助運輸延伸巷輔測路線2：南翼-740水平回風大巷—南翼回風下山—南翼回風大巷補測路線：南翼-740軌道延伸巷—十一采區(qū)西部軌道巷—十采區(qū)第二探煤巷—十采區(qū)第一探煤巷各測定路線及測點位置如圖2.2~2.5所示。圖2.2主測路線測點布置示意圖圖2.3輔測路線1測點布置示意圖圖2.4輔測路線2測點布置示意圖圖2.5補測路線測點布置示意圖2.4阻力解算對濟寧二號煤礦通風阻力測定的原始數(shù)據(jù)進行整理后，利用通風阻力解算軟件進行解算。此次阻力測定的原始數(shù)據(jù)記錄表和阻力解算結果匯總表如表2.2～2.9所示。南翼采區(qū)通風系統(tǒng)優(yōu)化與通防保障技術研究階段性究報告表2.211309工作面阻力測定原始數(shù)據(jù)記錄表序號測點測點位置支護形式斷面形狀絕對壓力HPa基點壓力Pa干溫℃濕溫℃全高m寬度m面積m2有效面積m2周長m風速m/s風量m3/s測點間距m標高m11副井口0028.521.30003822副井底6929712822.454.254.228.27033.057749165.73593-55533南翼軌道大巷錨噴三心拱69106827.223.445.4418.584618.2846067216.55422.8922752.884012131-555.144南翼軌道大巷錨噴三心拱68666427233.93619.717219.417217.05125.340626103.7175-554.655南翼軌道大巷錨噴三心拱71746227.623.43.96517.117516.817515.88735.90410899.292335539-58816南翼軌道大巷錨噴三心拱71225927.8243.96517.117516.817515.88735.94319799.949723312-587.577南翼軌道大巷錨噴三心拱70205427.624.24.055.0517.716117.4160817516.16276.005188104.58685425-585.487‘南翼軌道大巷錨噴三心拱70034827.224.23.874.9116.414916.1149008715.55794.94260179.649525100-584.898南翼軌道大巷錨噴三心拱69574427.424.23.874.9116.414916.1149008715.55794.94260179.649525222-584.4109南翼軌道下山錨噴三心拱69164527.624.43.374.4412.847512.8475307213.76395.50516670.727789299-583.91110南翼軌道下山錨噴三心拱86954028.425.24.265.2619.438919.4388665216.93043.93460176.4841781166-739.11212南翼-740水平軌道大巷錨噴三心拱87013527.625.43.674.8715.328115.3280766315.0342.19227533.603354229-740.21313南翼-740水平軌道大巷錨噴三心拱86853926.625.245.1317.696217.6961966316.15373.21332256.863586151-739.91414南翼-740水平軌道大巷錨噴三心拱8675362825.64.125.1218.281618.2815948816.41873.3357660.983009279-7401515南翼-740水平軌道大巷錨噴三心拱86433427.625.24.2518.317518.317516.43482.32917742.664698328-738.1表2.211309工作面阻力測定原始數(shù)據(jù)記錄表(續(xù))序號測點測點位置支護形式斷面形狀絕對壓力HPa基點壓力Pa干溫℃濕溫℃全高m寬度m面積m2有效面積m2周長m風速m/s風量m3/s測點間距m標高m1616南翼-740水平軌道大巷錨噴三心拱86153228.226.23.965.1217.462417.4623948816.04662.08922836.482925333-737.21717南翼-740水平軌道大巷錨噴三心拱85822927.8263.965.1217.462417.4623948816.04662.08922836.482925295-736.3181811309軌順上口錨噴矩形8553252826.23.134.5314.178914.178915.321.16315416.492244192-734.91918‘11309進風隅角上風側151m錨噴矩形88942129.828.6341212141.53036318.3643591192-765.62019’11309回風隅角錨噴矩形83602231.230.8341212141.53036318.364359216.3-722.3211911309皮帶順槽上口10m錨噴矩形8600-933.2332.84.612.8812.8814.81.42580418.3643591193-747.82220南翼-740水平膠帶輸送機大巷錨噴三心拱8601-2232.831.63.945.0517.160617.1605817515.90732.67416945.890302137-751.292321南翼-740水平膠帶輸送機大巷錨噴三心拱8306-2832.431.63.44.813.847813.84780814.28972.23128830.898451210-728.92422南翼-740水平膠帶輸送機大巷錨噴三心拱8021-2732.431.84.65.522.054222.05417518.03341.02928922.70012281-710.6522524南翼-740水平膠帶輸送機大巷錨噴三心拱8468-383231.23.564.7914.590514.5904980714.66781.5916723.223264388-737.6832624’南翼-740水平膠帶輸送機大巷錨噴三心拱8418-3831.630.43.734.8315.512713.5127090315.12430.97058613.11525134-737.52725南翼-740水平膠帶輸送機大巷錨噴三心拱8253-693130.43.364.4412.803112.8031307213.74011.58704720.319176454-739.082825'南翼-740水平膠帶輸送機大巷錨噴三心拱7992-7731.430.84.34.918.493718.49372716.51372.47831845.83333396-728.6942926南翼膠帶輸送機下山錨噴三心拱8069-9932.6323.044.7512.01912.0190437513.31273.81339345.833333196-740.33027’南翼膠帶輸送機下山錨噴三心拱8050-10033.232.23.044.7512.01912.0190437513.31273.38617440.69857106-740表2.211309工作面阻力測定原始數(shù)據(jù)記錄表(續(xù))序號測點測點位置支護形式斷面形狀絕對壓力HPa基點壓力Pa干溫℃濕溫℃全高m寬度m面積m2有效面積m2周長m風速m/s風量m3/s測點間距m標高m3127南翼膠帶輸送機下山錨噴三心拱8023-10332.431.43.044.7512.01912.0190437513.31273.98382847.88180398-739.63228南翼膠帶輸送機下山錨噴三心拱6901-10431.831.23.444.0812.24912.2490412813.43955.92270672.5474741104-657.83330南翼膠帶輸送機大巷錨噴半圓拱5705-13032.8322.915.2512.3212.3200437513.47847.69053294.747692801-585.33431南翼膠帶輸送機大巷錨噴半圓拱5500-13632.631.83.515.3715.754515.7545006315.24175.64853388.989824206-576.43532南翼膠帶輸送機大巷錨噴半圓拱5340-15132.631.83.875.3817.714917.7148658816.16225.28945593.701981215-578.33634南翼膠帶輸送機大巷錨噴三心拱5400-1543231.23.55.315.535915.53594315.13565.46278684.869536376-592.83735南翼膠帶輸送機大巷錨噴三心拱4776-15731.831.417.217.215.92563.16957454.516667590-552.73836南翼膠帶輸送機大巷錨噴三心拱4300-14532.431.63.75.0916.053116.0530608715.38544.61448274.076562418-523.573937風機底錨噴三心拱4102-14729.8294.385.8221.857121.8570914817.952610.40672227.46054187-5244038風硐澆筑矩形-2931-14932324.25212118.413.57619285.152438

表2.311309工作面通風系統(tǒng)阻力解算表序號測點測點位置支護形式斷面形狀風速m/s風量m3/s測點間距m靜壓差Pa位壓差Pa動壓差Pa阻力Pa風阻kg/m7百米風阻kg/m7阻力系數(shù)kg/m311副井口00022副井底3.057749165.73593-68587181.044921-5.879921317.1650.011547370.001947280.10967188133南翼軌道大巷錨噴三心拱2.8922752.884012131161.2336647630.610152217.8438170.006380270.0048704340.01798525744南翼軌道大巷錨噴三心拱5.340626103.717540-6.17487124-12.7054421.119690.001963950.0011222560.00481834655南翼軌道大巷錨噴三心拱5.90410899.292335539-310412.4287935-3.97869998.4500950.009985840.0018526610.00554662566南翼軌道大巷錨噴三心拱5.94319799.94972331249-6.16853367-0.2663342.5651360.00426080.001365640.00408854977南翼軌道大巷錨噴三心拱6.005188104.5868542597-25.8966351-0.47218370.6311820.006457170.0015193350.00496580687‘南翼軌道大巷錨噴三心拱4.94260179.64952510011-7.402649557.309342810.9066930.00171920.0017192010.00462444198南翼軌道大巷錨噴三心拱4.94260179.64952522242-4.934223130.016245937.0820230.005845170.0026329590.007082338109南翼軌道下山錨噴三心拱5.50516670.72778929942-6.16218562-3.6827332.1550850.006427910.0021498010.0033121981110南翼軌道下山錨噴三心拱3.93460176.4841781166-17841917.173259.2663542142.43960.024349360.0020882810.0090601441212南翼-740水平軌道大巷錨噴三心拱2.19227533.603354229-1113.639393886.73950399.37889770.00830590.0036270290.0086883841313南翼-740水平軌道大巷錨噴三心拱3.21332256.86358615120-3.72995338-3.51695512.7530920.003944090.0026119810.0089606321414南翼-740水平軌道大巷錨噴三心拱3.3357660.98300927971.242465991-0.4766317.76583510.002088190.0007484560.0027852891515南翼-740水平軌道大巷錨噴三心拱2.32917742.66469832830-23.56826173.601513210.0332510.005511940.0016804690.0062844141616南翼-740水平軌道大巷錨噴三心拱2.08922836.48292533326-11.15575510.679314115.5235590.011663050.0035024160.011622406表2.311309工作面通風系統(tǒng)阻力解算表(續(xù))序號測點測點位置支護形式斷面形狀風速m/s風量m3/s測點間距m靜壓差Pa位壓差Pa動壓差Pa阻力Pa風阻kg/m7百米風阻kg/m7阻力系數(shù)kg/m31717南翼-740水平軌道大巷錨噴三心拱2.08922836.48292529530-11.1481742-0.00412718.8476980.014160510.0048001740.015928882181811309軌順上口錨噴矩形1.16315416.49224419225-17.34612721.90575549.55962820.035146450.0183054450.0340603521918‘11309進風隅角上風側151m錨噴矩形1.53036318.3643591192-345378.9210383-0.61506133.3059770.098757630.0082850360.0102261012019’11309回風隅角錨噴矩形1.53036318.364359216.3535-530.5865170.01138144.42486440.013120440.0060658530.007486996211911309皮帶順槽上口10m錨噴矩形1.42580418.3643591193-271309.99237330.202768439.1951420.116219950.0097418240.0140645592220南翼-740水平膠帶輸送機大巷錨噴三心拱2.67416945.890302137-1442.29743381-3.17076325.1266710.011931450.0087090860.0276675912321南翼-740水平膠帶輸送機大巷錨噴三心拱2.23128830.898451210289-271.6913571.343607518.6522510.0195370.0093033320.0172886032422南翼-740水平膠帶輸送機大巷錨噴三心拱1.02928922.70012281286-221.339132.427659567.0885290.13019430.0463324910.2756014282524南翼-740水平膠帶輸送機大巷錨噴三心拱1.5916723.223264388-458328.2818071-0.917426-130.6356-0.2422228-0.062428569-0.132198782624’南翼-740水平膠帶輸送機大巷錨噴三心拱0.97058613.1152513450-2.228214250.987016948.7588030.283465310.2115412730.3451018932725南翼-740水平膠帶輸送機大巷錨噴三心拱1.58704720.31917645413419.27166039-0.983348152.288310.368853910.0812453540.124095994表2.311309工作面通風系統(tǒng)阻力解算表(續(xù))序號測點測點位置支護形式斷面形狀風速m/s風量m3/s測點間距m靜壓差Pa位壓差Pa動壓差Pa阻力Pa風阻kg/m7百米風阻kg/m7阻力系數(shù)kg/m32825'南翼-740水平膠帶輸送機大巷錨噴三心拱2.47831845.83333396253-126.661752-2.248276124.089970.059070930.0615322180.2356852752926南翼膠帶輸送機下山錨噴三心拱3.81339345.833333196-99141.0370207-5.17708736.8599340.017546550.008952320.0116755993027’南翼膠帶輸送機下山錨噴三心拱3.38617440.6985710618-3.633380911.915911916.2825310.009830230.0092738010.0120948733127南翼膠帶輸送機下山錨噴三心拱3.98382847.8818039824-4.84730515-2.7491916.4035050.007154770.0073007860.0095216713228南翼膠帶輸送機下山錨噴三心拱5.92270672.54747411041121-990.849794-11.80889118.341310.022484940.002036680.0027851383330南翼膠帶輸送機大巷錨噴半圓拱7.69053294.7476928011170-872.162671-14.48463283.35270.031563860.0039405560.0054670993431南翼膠帶輸送機大巷錨噴半圓拱5.64853388.989824206199-106.54533816.63173109.086390.013774950.0066868670.0171554873532南翼膠帶輸送機大巷錨噴半圓拱5.28945593.70198121514522.739207652.411895170.15110.019379260.009013610.0310036063634南翼膠帶輸送機大巷錨噴三心拱5.46278684.869536376-63173.7952948-1.205625109.589670.015214790.0040464870.0100251513735南翼膠帶輸送機大巷錨噴三心拱3.16957454.516667590621-480.68611512.149786152.463670.051298870.0086947230.0277808593836南翼膠帶輸送機大巷錨噴三心拱4.61448274.076562418488-347.965414-6.821271133.213310.02427650.0058077740.015616123937風機底錨噴三心拱10.40672227.460541871965.153258782-53.5959147.557360.002851990.0015251310.0088706784038風硐澆筑矩形13.57619285.15247031-6599.050985-41.02709484390.92192030.0048094520.0009178340.0046196表2.4輔測路線1測定原始數(shù)據(jù)記錄表序號測點測點位置支護形式斷面形狀絕對壓力HPa基點壓力Pa干溫℃濕溫℃全高m寬度m面積m2有效面積m2周長m風速m/s風量m3/s測點間距m標高m13南翼輔助進風大巷錨噴三心拱68859633.226.83.855.3520.220.217.25875.960396120.40-555.125南翼輔助進風大巷錨噴三心拱68839533.226.210.419.412.38364.2582.4567.7-554.636南翼輔助進風大巷錨噴三心拱72309333.226.43.13.710.410.412.38366.77564170.466667490.1-587.647南翼輔助進風大巷錨噴三心拱72059033.426.23.13.710.410.412.38366.52724467.883333280.6-58758南翼輔助進風大巷錨噴三心拱72698633.2253.63.9131313.84534.06538552.85132.3-59269南翼輔助進風大巷錨噴三心拱71628233.225.83.9516.817516.817515.74753.1425652.85408.5-585.3711’南翼進風下山錨噴矩形8897483525.93.564.214.95214.95215.525.34711179.951368.3-735.9811南翼進風下山錨噴矩形88524435262.694.214.95214.95213.785.28803379.06666720-732.65912南翼進風下山錨噴矩形8960862725.83.424.4115.082215.082215.664.05555361.166667380.9-7391013九采輔助膠帶輸送機巷錨噴矩形85588226.625.63.214.2313.578313.578314.882.59036335.17273287.3-7091113‘九采輔助膠帶輸送機巷錨噴矩形85467726.625.63.214.2313.578313.578314.882.59036335.17273215.6-708.8表2.4輔測路線1測定原始數(shù)據(jù)記錄表(續(xù))序號測點測點位置支護形式斷面形狀絕對壓力HPa基點壓力Pa干溫℃濕溫℃全高m寬度m面積m2有效面積m2周長m風速m/s風量m3/s測點間距m標高m1214九采輔助膠帶輸送機巷錨噴矩形85267626.425.63.044.2612.950412.950414.62.35734130.528515109.3-707.51315南翼-740輔助運輸巷砌碹半圓拱84937526.625.83.314.1611.912711.9127091213.25371.87105822.289367158-705.41415‘南翼-740輔助運輸巷砌碹半圓拱84777327263.575.1115.440915.2408716715.08920.81257412.38432950.6-704.31516南翼-740輔助運輸巷砌碹半圓拱84757327.226.24.45.6221.33921.3389938817.73861.49243531.84706234-704.41616’南翼-740輔助運輸巷砌碹半圓拱84767427.226.24.315.7221.142521.1425156817.65671.74857736.96931821.7-704.61717南翼-740輔助運輸巷砌碹半圓拱85067327.126.44.155.0918.343618.3435608716.44651.82760933.524861129.1-7081818南翼-740輔助運輸延伸巷錨噴矩形8808622726.24.295.423.16623.16619.381.26515229.308508647-732.11919南翼-740輔助運輸延伸巷錨噴矩形87196226.8263.945.8623.088423.088419.61.00749623.261461126.3-726.52019'南翼-740輔助運輸延伸巷錨噴矩形8739652726.22.895.5916.155116.155116.961.03035116.645421288.9-732表2.5輔測路線1通風系統(tǒng)阻力解算表序號測點測點位置支護形式斷面形狀風速m/s風量m3/s測點間距m靜壓差Pa位壓差Pa動壓差Pa阻力Pa風阻kg/m7百米風阻kg/m7阻力系數(shù)kg/m313南翼輔助進風大巷錨噴三心拱5.960396120.4025南翼輔助進風大巷錨噴三心拱4.2582.4567.71-6.0453151410.762575.71725490.000841020.0012422740.00732444736南翼輔助進風大巷錨噴三心拱6.77564170.466667490.1-349399.3545131-17.2171533.1373660.006673450.0013616510.00123685347南翼輔助進風大巷錨噴三心拱6.52724467.883333280.622-7.260879432.073782516.8129030.003648520.0013002560.00118108458南翼輔助進風大巷錨噴三心拱4.06538552.85132.3-6860.4961779616.0821838.57836060.003071240.0023214240.00368367869南翼輔助進風大巷錨噴三心拱3.1425652.85408.5103-81.08106784.110703826.0296360.009319190.0022813190.006890622711’南翼進風下山錨噴矩形5.34711179.951368.3-17691830.408523-11.714349.6942250.007774440.0005681820.001223753811南翼進風下山錨噴矩形5.28803379.0666672041-39.72001750.35659161.6365740.000261790.0013089370.003175173912南翼進風下山錨噴矩形4.05555361.166667380.9-6680.260009926.507024320.7670340.005550660.0014572490.0031925391013九采輔助膠帶輸送機巷錨噴矩形2.59036335.17273287.3398-399.4375126.29634774.85883540.003927530.001367050.0022999461113‘九采輔助膠帶輸送機巷錨噴矩形2.59036335.17273215.67-2.660648840.19234224.53169340.00366310.0016990240.0028584651214九采輔助膠帶輸送機巷錨噴矩形2.35734130.528515109.319-16.935020.7633922.8283720.003034770.0027765470.004130491表2.5輔測路線1通風系統(tǒng)阻力解算表(續(xù))序號測點測點位置支護形式斷面形狀風速m/s風量m3/s測點間距m靜壓差Pa位壓差Pa動壓差Pa阻力Pa風阻kg/m7百米風阻kg/m7阻力系數(shù)kg/m31315南翼-740輔助運輸巷砌碹半圓拱1.87105822.28936715832-27.34580131.37059656.02479520.012126820.00767520.0097900481415‘南翼-740輔助運輸巷砌碹半圓拱0.81257412.38432950.614-14.30322321.88642421.58320110.010322650.0204004910.0478633291516南翼-740輔助運輸巷砌碹半圓拱1.49243531.8470623421.29880432-1.0375912.26121290.002229480.0065572810.0359192611616’南翼-740輔助運輸巷砌碹半圓拱1.74857736.96931821.702.596345419-0.5496892.04665680.001497480.0069008470.0369371031717南翼-740輔助運輸巷砌碹半圓拱1.82760933.524861129.1-3144.15637674-0.18923812.9671380.011537460.0089368390.0335399051818南翼-740輔助運輸延伸巷錨噴矩形1.26515229.308508647-313313.60928851.14996561.75925410.002048050.0003165460.0020306561919南翼-740輔助運輸延伸巷錨噴矩形1.00749623.261461126.389-72.97573620.389467816.4137320.030334260.0240176220.1508187892019'南翼-740輔助運輸延伸巷錨噴矩形1.03035116.645421288.9-1771.64442988-0.03052954.6139010.197112260.0682285420.169616928表2.6輔測路線2測定原始數(shù)據(jù)記錄表序號測點測點位置支護形式斷面形狀絕對壓力HPa基點壓力Pa干溫℃濕溫℃全高m寬度m面積m2有效面積m2周長m風速m/s風量m3/s測點間距m標高m113南翼-740水平回風大巷錨噴矩形82848284-3029.828.44.24.820.1620.560.68390714.0611220-722.4214南翼-740水平回風大巷錨噴三心拱84478527-3030.4293.44.212.38722812.78721.83640723.482559128-736.5315南翼-740水平回風大巷錨噴矩形83428360-9029.628.62.84.813.4413.841.62978322.556192188.5-733.8416南翼-740水平回風大巷錨噴矩形82908274-1023129.62.94.813.9214.321.60964423.05009874.8-730.9517南翼-740水平回風大巷錨噴矩形80028002-12030.229.43.235.0216.214616.61463.8459263.898428300.1-714.1618南翼-740水平回風大巷錨噴矩形79207990-15030.6303.235.0216.214616.61463.8459263.89842889.8-711719南翼-740水平回風大巷錨噴矩形82208290-16332.230.33.54.8917.11517.5156.383101111.8000299.1-709.2820南翼-740水平回風大巷錨噴矩形81528232-18032.2313.65.118.3618.764.77551989.588732157.5-705.9921南翼-740水平回風大巷錨噴矩形83488348-19431.830.83.65.118.3618.764.77551989.588732515.3-729.71022南翼-740水平回風大巷錨噴矩形83608360-19931.830.83.65.118.3618.764.77551989.588732151.4-732.7

表2.6輔測路線2測定原始數(shù)據(jù)記錄表(續(xù))序號測點測點位置支護形式斷面形狀絕對壓力HPa基點壓力Pa干溫℃濕溫℃全高m寬度m面積m2有效面積m2周長m風速m/s風量m3/s測點間距m標高m1123南翼-740水平回風大巷錨噴三心拱83258325-20831.630.63.64.814.80780815.20783.59464554.66666795.7-732.651214九采輔助膠帶輸送機巷錨噴矩形85267626.425.63.044.2612.950412.950414.62.35734130.528515109.3-707.51315南翼-740輔助運輸巷砌碹半圓拱84937526.625.83.314.1611.912711.9127091213.25371.87105822.289367158-705.41415‘南翼-740輔助運輸巷砌碹半圓拱84777327263.575.1115.440915.2408716715.08920.81257412.38432950.6-704.31516南翼-740輔助運輸巷砌碹半圓拱84757327.226.24.45.6221.33921.3389938817.73861.49243531.84706234-704.41616’南翼-740輔助運輸巷砌碹半圓拱84767427.226.24.315.7221.142521.1425156817.65671.74857736.96931821.7-704.61717南翼-740輔助運輸巷砌碹半圓拱85067327.126.44.155.0918.343618.3435608716.44651.82760933.524861129.1-7081818南翼-740輔助運輸延伸巷錨噴矩形8808622726.24.295.423.16623.16619.381.26515229.308508647-732.11919南翼-740輔助運輸延伸巷錨噴矩形87196226.8263.945.8623.088423.088419.61.00749623.261461126.3-726.52019'南翼-740輔助運輸延伸巷錨噴矩形8739652726.22.895.5916.155116.155116.961.03035116.645421288.9-732表2.7輔測路線2通風系統(tǒng)阻力解算表序號測點測點位置支護形式斷面形狀風速m/s風量m3/s測點間距m靜壓差Pa位壓差Pa動壓差Pa阻力Pa風阻kg/m7百米風阻kg/m7阻力系數(shù)kg/m3113南翼-740水平回風大巷錨噴矩形0.68390714.0611220214南翼-740水平回風大巷錨噴三心拱1.83640723.482559128-163173.3784722-1.8207848.55768860.015519070.0121242720.018757139315南翼-740水平回風大巷錨噴矩形1.62978322.556192188.545-33.20858750.446116112.2375290.024052610.0127600030.022254379416南翼-740水平回風大巷錨噴矩形1.60964423.05009874.840-35.59958580.05010714.45052120.008376550.01119860.021353647517南翼-740水平回風大巷錨噴矩形3.8459263.898428300.1270-205.808971-7.63372456.5573040.013851870.0046157510.012830042618南翼-740水平回風大巷錨噴矩形3.8459263.89842889.852-38.2325141-0.11044813.6570380.003344850.0037247730.010353461719南翼-740水平回風大巷錨噴矩形6.383101111.8000299.1-313-22.1287768-15.95979-351.0886-0.0280888-0.028343877-0.090760677820南翼-740水平回風大巷錨噴矩形4.77551989.588732157.551-40.169693611.16873521.9990410.002740920.0017402690.006603371921南翼-740水平回風大巷錨噴矩形4.77551989.588732515.3-210289.9523034-0.04394379.908360.009956010.0019320810.0073311911022南翼-740水平回風大巷錨噴矩形4.77551989.588732151.4-1736.60693965-0.00130319.6056360.002442720.0016134230.0061220591123南翼-740水平回風大巷錨噴三心拱3.59464554.66666795.726-0.610397176.147117431.536720.010552890.0110270510.02624718表2.7輔測路線2通風系統(tǒng)阻力解算表(續(xù))序號測點測點位置支護形式斷面形狀風速m/s風量m3/s測點間距m靜壓差Pa位壓差Pa動壓差Pa阻力Pa風阻kg/m7百米風阻kg/m7阻力系數(shù)kg/m31229南翼-740水平回風大巷錨噴三心拱4.45640868.71666754.5260.605839798-4.12823722.4776020.004760210.0087343240.0215178191330南翼回風下山錨噴三心拱3.87251961.533333257.1-3083.136397882.939441456.0758390.014809990.0057604020.0152915011431南翼回風下山錨噴三心拱7.313807112.1513.11169-957.767104-23.47581187.757080.014941190.0029119440.0070672331532'南翼回風下山錨噴三心拱6.572907102.65001168-834.6781516.4224118339.744260.032274340.0064548690.0163933571632南翼回風下山錨噴三心拱7.21459104.98333108.8157-133.595321-5.38153118.0231480.001635270.0015030070.0032059321717南翼-740輔助運輸巷砌碹半圓拱1.82760933.524861129.1-3144.15637674-0.18923812.9671380.011537460.0089368390.0335399051818南翼-740輔助運輸延伸巷錨噴矩形1.26515229.308508647-313313.60928851.14996561.75925410.002048050.0003165460.0020306561919南翼-740輔助運輸延伸巷錨噴矩形1.00749623.261461126.389-72.97573620.389467816.4137320.030334260.0240176220.1508187892019'南翼-740輔助運輸延伸巷錨噴矩形1.03035116.645421288.9-1771.64442988-0.03052954.6139010.197112260.0682285420.169616928表2.8補測路線測定原始數(shù)據(jù)記錄表序號測點測點位置支護形式斷面形狀絕對壓力HPa基點壓力Pa干溫℃濕溫℃全高m寬度m面積m2有效面積m2周長m風速m/s風量m3/s測點間距m標高m11南翼-740軌道延伸巷錨噴三心拱86873327.625.63.965.1217.462417.0623948816.04662.13820736.4829250-736.322南翼-740軌道延伸巷錨噴三心拱86843427.2253.554.6714.238413.8384050314.48981.13065215.646417123.5-735.8533南翼-740軌道延伸巷錨噴三心拱8673.33528.225.83.925.1317.285816.8857966315.96530.60239710.171949257.2-734.944南翼-740軌道延伸巷錨噴三心拱86623427.225.82.884.4410.671910.2719307212.54451.17234812.042273196.6-734.255南翼-740軌道延伸巷錨噴三心拱86533427.2263.14.211.12729.92722812.80930.9238839.1716002150.2-733.566十一采區(qū)西部軌道巷錨噴三心拱8631352825.445.318.185916.98594316.37571.26130921.424523368.1-732.377十一采區(qū)西部軌道巷錨噴三心拱86293728.426.83.745.4317.144515.4444702315.89990.6334769.783705485-73288十采區(qū)第二探煤巷錨噴矩形86123728.627.23.24.514.41315.41.60935220.92157478-730.999十采區(qū)第二探煤巷錨噴矩形85774828.627.43.054.513.72513.32515.11.2886517.171257195-727.31010十采區(qū)第一探煤巷錨噴矩形77753830.8303.7414.811.115.41.55465317.256649797-663.51111十采區(qū)第一探煤巷錨噴矩形85531230.229.43.53414.514.115.061.59219922.45658-731.91212十采區(qū)第一探煤巷錨噴矩形8610130.229.43.53414.510.87515.062.06436822.45461-739.5表2.9補測路線通風系統(tǒng)阻力解算表序號測點測點位置支護形式斷面形狀風速m/s風量m3/s測點間距m靜壓差Pa位壓差Pa動壓差Pa阻力Pa風阻kg/m7百米風阻kg/m7阻力系數(shù)kg/m311南翼-740軌道延伸巷錨噴三心拱2.13820736.482925022南翼-740軌道延伸巷錨噴三心拱1.13065215.646417123.54-5.602444842.08945470.48700990.001989340.0016107980.0029460333南翼-740軌道延伸巷錨噴三心拱0.60239710.171949257.211.7-11.81460390.58274680.46814290.004524490.0017591350.0053050344南翼-740軌道延伸巷錨噴三心拱1.17234812.042273196.610.3-8.70332598-0.643350.95332450.006573910.00334380.00288897655南翼-740軌道延伸巷錨噴三心拱0.9238839.1716002150.29-8.714251960.3312040.61695210.007334340.0048830510.00372949966十一采區(qū)西部軌道巷錨噴三心拱1.26130921.424523368.123-14.9203678-0.4662717.61336130.016586480.004505970.01348522477十一采區(qū)西部軌道巷錨噴三心拱0.6334769.7837054854-3.721856860.75457291.0327160.010788830.0126927360.02940905388十采區(qū)第二探煤巷錨噴矩形1.60935220.9215747817-13.6241826-1.3823411.99347690.004554310.0058388580.00832985199十采區(qū)第二探煤巷錨噴矩形1.288651744.55429310.58782792.03353480.00689680.0035368190.005541631010十采區(qū)第一探煤巷錨噴矩形1.55465317.256649797792-784.247602-0.4578127.29458580.024495580.0030734730.0027294661111十采區(qū)第一探煤巷錨噴矩形1.59219922.45658-804838.0847131-0.08392834.0007850.067461540.0102525140.0190837071212十采區(qū)第一探煤巷錨噴矩形2.06436822.45461-6893.4361972-1.08355624.3526410.048318490.0104812350.008951077南翼采區(qū)通風系統(tǒng)優(yōu)化與通防保障技術研究階段性報告2.5通風阻力測定結果分析及評價2.5.1測定誤差分析(1)礦井通風阻力測定結果檢驗為判定測定工作的有效性和測定結果的可靠性，必須對測定結果進行誤差檢驗。通風系統(tǒng)阻力測定誤差是由風機房水柱計讀數(shù)計算出的通風系統(tǒng)理論通風阻力與實測的通風系統(tǒng)通風阻力比較得出的相對誤差。礦井通風系統(tǒng)通風阻力的理論阻力值可按下式計算：Pa(2.11)式中：——礦井通風阻力的理論值，Pa；——扇風機房“U”型水柱計讀數(shù)，Pa；——風機風硐內(nèi)測壓斷面的速壓，Pa；——該系統(tǒng)的自然風壓，Pa。則礦井通風系統(tǒng)的測定誤差按下式計算：式中：——相對誤差，%，一般要求小于等于5%?！V井通風阻力的實測值，Pa。通風阻力測定期間，風機房水柱計靜壓讀數(shù)平均為2600Pa，實測通風系統(tǒng)自然風壓為，按上式2.11可計算出礦井各系統(tǒng)實際通風阻力及測定誤差如表2.10所示。濟寧二號煤礦通風系統(tǒng)的通風阻力測定結果檢驗如表2.10所示。表2.10濟寧二號煤礦通風系統(tǒng)通風阻力測定結果檢驗表風機房水柱計讀數(shù)Pa風硐斷面速壓Pa自然風壓Pa理論通風阻力Pa實測通風阻力Pa相對誤差%主測路線2600107.58266.322973.92940.741.1(2)誤差原因分析本次測定采用的是精度及穩(wěn)定性較高的精密氣壓計，但在測定過程中，由于受測定條件的限制以及測定儀器、儀表及人為等種種因素的影響，測定中仍存在著一定的誤差，其主要原因為：①巷道的斷面不規(guī)則，局部地點風流不穩(wěn)定，造成儀器讀數(shù)變化較大，難以讀得準確的數(shù)值；②有些測點標高不準確，致使個別巷道的阻力計算值“失真”；③井下生產(chǎn)的干擾，也對測點的風流參數(shù)產(chǎn)生影響。從表2.10的測定檢驗結果來看，測定誤差小于5%，表明本次通風阻力測定結果滿足礦井通風阻力測定和通風系統(tǒng)分析的精度要求。2.5.2礦井通風阻力分布根據(jù)礦井各段風路在通風系統(tǒng)中位置和作用的不同，將各段風路分為進風段、用風段和回風段。各條路線的通風系統(tǒng)阻力分布如表2.11所示，各條路線百米風阻的分布情況見圖2.6～2.9。表2.11濟寧二號煤礦通風系統(tǒng)阻力分布表區(qū)段測點區(qū)間長度/m占總長度百分比/%通風阻力/Pa占總阻力百分比/%主測路線進風段1-9279618.78647.9222.03用風段9-28877858.94796.4827.08回風段28-38331722.281496.3450.89合計148911002940.74100區(qū)段測點區(qū)間長度/m占總長度百分比/%通風阻力/Pa占總阻力百分比/%輔測路線1進風段3-11’2747.552.67139.9751.41用風段11’-19’2468.747.33132.2948.59合計5216.2100272.26100區(qū)段測點區(qū)間長度/m占總長度百分比/%通風阻力/Pa占總阻力百分比/%輔測路線2用風段13-291854.734.64-80.10-5.51回風段29-393499.165.361533.52105.51合計5353.81001453.42100

表2.11濟寧二號煤礦通風系統(tǒng)阻力分布表（續(xù)）區(qū)段測點區(qū)間長度/m占總長度百分比/%通風阻力/Pa占總阻力百分比/%補測路線十采區(qū)進風段1-91453.643.1415.218.8十采區(qū)回風段9-12191656.8665.6581.2合計3369.610080.85100圖2.6主測路線百米風阻分布圖圖2.7輔測路線1百米風阻分布圖圖2.8輔測路線2百米風阻分布圖圖2.9補測路線百米風阻分布圖通過表2.2～2.11和圖2.6~2.9可以看出：(1)主測路線的通風阻力為2940.74Pa，測定誤差小于5%，測定結果滿足礦井通風阻力測定和通風系統(tǒng)分析的精度要求；(2)主測路線回風段阻力值及所占比重偏高，其中回風段距離占總距離的22.28%，而阻力值卻達到總阻力的50.89%左右，主要原因是部分回風巷道段雜物堆積現(xiàn)象嚴重，有效斷面小，且回風巷道風量過于集中；(3)主測路線用風段和回風段的百米風阻值偏高，主要是由于巷道有效通風斷面小，部分巷道雜物堆積嚴重，應注意及時清理巷道中的堆積雜物，盡量避免巷道斷面的突變，加強對巷道斷面的維護；(4)輔測路線1的通風阻力分別為272.26Pa，其中進風段距離、用風段距離分別占總距離的52.67%、47.33%，阻力值各段分別占總阻力的51.41%、48.59%，用風段阻力略高一些，主要原因是部分用風段巷道雜物堆積現(xiàn)象嚴重，使得有效斷面降低，增大了該段的通風阻力；(5)輔測路線2的通風阻力為1453.42Pa，該段由于輔助通風機的作用，克服了部分阻力的作用，一定程度上緩解了南翼通風的困難狀況；(6)補測路線的通風阻力為80.85Pa，其中十采區(qū)進風段距離、十采區(qū)用風段距離分別占總距離的43.14%、56.86%，阻力值各段分別占總阻力的18.8%、81.2%，十采區(qū)用風段百米風阻值偏高，主要是由于巷道有效通風斷面小，部分巷道雜物堆積嚴重。2.6礦井通風改造技術措施2.6.1降低礦井通風阻力措施根據(jù)現(xiàn)場實地考察以及阻力測定結果分析可知，濟二煤礦南翼通風系統(tǒng)中存在局部阻力增大的情況，為盡可能消除局部阻力增大的現(xiàn)象，根據(jù)實際情況提出降阻措施：(1)清理堆積雜物嚴重巷道①南翼-740水平二部膠帶輸送機巷與11309軌順交點處上風側10m處施工物料等雜物堆積嚴重；②11308軌順密閉處施工物料等雜物堆積達3m2；③-740水平膠帶運輸巷與-740水平回風巷2#聯(lián)絡巷下風側20m處，膠帶占巷道面積約2m2；南翼輔運與輔扇聯(lián)絡巷上風側50m處有0.2m2碎石；④11309運順轉(zhuǎn)載點施工物料等雜物堆積嚴重；⑤-740軌回4#聯(lián)絡巷下風側10m處有皮帶0.6m2、管道0.3m2，其下風側30m皮帶機頭有效面積僅占巷道斷面一半；⑥-740軌回4#聯(lián)絡巷下風側85m處施工物料等雜物堆積嚴重，巷道有效面積占巷道斷面