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摘要第一章工程概述1.1工程地質(zhì)條件1.1.1地形地貌康定縣城地處高原大雪山中段,雪山東坡的高山多為懸崖峭壁,地表破碎不堪,高差相差極大。雪山高原海拔多在4500m左右,河谷下切較淺,頂面開(kāi)闊平緩、水草豐茂。隧道區(qū)位于折多山以東康定縣,一般海拔標(biāo)高2500m~5000m,山高坡陡,不斷會(huì)受到風(fēng)化雨水的侵蝕,康定縣河谷一般海拔標(biāo)高2450m~2650m,河谷多呈V字型,河谷內(nèi)河流堆積地貌。跑馬山二號(hào)公路隧道位于山嶺地區(qū),采用分離式布置,左線進(jìn)口樁號(hào)為ZK322+216,出口樁號(hào)為ZK324+386,全長(zhǎng)2170m;右線進(jìn)出口樁號(hào)為YK322+156,出口樁YK324+276,全長(zhǎng)2120m。全隧均采用1.5﹪縱坡、1.5﹪橫坡。1.1.2區(qū)域穩(wěn)定性隧址區(qū)跨越兩個(gè)大地構(gòu)造區(qū)域,造成了地殼運(yùn)動(dòng)的基本格局。隨著青藏高原物質(zhì)向西的相對(duì)運(yùn)動(dòng),高原東部地區(qū)表現(xiàn)出地殼的開(kāi)裂變形和旋轉(zhuǎn),向一側(cè)堆擠的復(fù)雜現(xiàn)象,導(dǎo)致隧址區(qū)域內(nèi)的地震活動(dòng)相對(duì)較為頻繁。1.1.3水文地質(zhì)根據(jù)氣象資料顯示,本地區(qū)的年平均降水量804mm左右,降雨集中的月份為5月到9月,占全年降水量的65%~85%,基本都為大暴雨,最大的日降雨量為66mm.冬季降雨量較少,月降雨量在20mm以下。線路經(jīng)過(guò)的區(qū)域水資源豐富,水源主要來(lái)自瓦斯河。瓦斯河源于折多山,是大渡河的一個(gè)支流,穿越康定縣城,上游河流有2條,分別為雅拉河、折多河,在康定縣城內(nèi)會(huì)合流于瓦斯河內(nèi),河水的主要來(lái)源為地表降水和高山的冰雪融化而來(lái),再流到下游會(huì)與大渡河。1.2圍巖等級(jí)的確定在現(xiàn)行的規(guī)范中將隧道的圍巖等級(jí)分為6個(gè)等級(jí),分別為Ⅰ、Ⅱ、Ⅲ、Ⅳ、Ⅴ、Ⅵ,其中等級(jí)越小的代表圍巖等級(jí)越好,Ⅰ級(jí)圍巖是最好的,但根據(jù)現(xiàn)場(chǎng)條件的不同,在符合規(guī)定的條件下選用經(jīng)濟(jì)、合理的圍巖等級(jí),本次跑馬山二號(hào)公路隧道選用的是Ⅴ級(jí)圍巖。1.3隧道設(shè)計(jì)說(shuō)明設(shè)計(jì)標(biāo)準(zhǔn)及遵循規(guī)范(1)本隧道采用分離式雙車道單向行駛。(2)隧道設(shè)計(jì)車速為80km/h,隧道內(nèi)縱向風(fēng)速小于等于10m/s。(3)隧道施工圖設(shè)計(jì)根據(jù)要求進(jìn)行相應(yīng)的優(yōu)化。

第二章隧道整體設(shè)計(jì)2.1一般規(guī)定與設(shè)計(jì)原則2.1.1隧道的一般規(guī)定隧道的設(shè)計(jì)需要滿足公路交通的需求,應(yīng)按照《公路工程技術(shù)標(biāo)準(zhǔn)》進(jìn)行隧道斷面、圍巖襯砌、通風(fēng)和照明的進(jìn)行計(jì)。2.1.2隧道設(shè)計(jì)原則(1)在地形、地貌、地質(zhì)、氣象和環(huán)境等調(diào)查的基礎(chǔ)上,綜合對(duì)比選隧方案的方向、路線、洞口位置等,提出最合理的方案。(2)隧道平起、比例協(xié)調(diào),符合行車和行人要求。(3)根據(jù)隧道長(zhǎng)度、交通量及其構(gòu)成、交通方向以及環(huán)保要求等,選擇合理的通風(fēng)方式,確定通風(fēng)、照明、監(jiān)控等主要設(shè)施的布置。(4)根據(jù)公路等級(jí)、隧道長(zhǎng)度、施工的方法和環(huán)境保護(hù)的要求,對(duì)隧道內(nèi)外排水、消防通道、廢渣的處理等進(jìn)行全面考慮。2.2隧道橫斷面的設(shè)計(jì)原則隧道橫斷面設(shè)計(jì)原則如下所示:(1)隧道限界高度不同的公路等級(jí)有不同的隧道限界高度。(2)隧道內(nèi)輪廓設(shè)計(jì)隧道內(nèi)輪廓設(shè)計(jì)除了應(yīng)滿足隧道限界的規(guī)定外,還要滿足隧道洞內(nèi)外排水和裝飾,并為通風(fēng)、照明等設(shè)施提供安裝空間。(3)公路隧道的建筑限界要給汽車足夠的空間,還要滿足駕駛?cè)说氖孢m程度,所有需要布置的東西都不能在建筑限界內(nèi)。2.3隧道建筑界限圖2-1公路隧道建筑界限建筑限界高度:;修道高度:;車道寬度:;左側(cè)向?qū)挾龋海挥覀?cè)向?qū)挾龋?;左頂角寬度:;右頂角寬度:;檢修道左側(cè):;檢修道右側(cè):;路面坡度:;隧道建筑限界凈寬:10.50m2.4隧道襯砌內(nèi)輪廓設(shè)計(jì)隧道的內(nèi)輪廓拱部為單心半圓,側(cè)墻為大半徑圓弧,仰拱圓弧半徑,仰拱與側(cè)墻間用一個(gè)小半徑圓弧連接。兩車道的80km/h標(biāo)準(zhǔn)內(nèi)輪廓圖如圖2-2圖2-2隧道內(nèi)輪廓線

第三章洞門設(shè)計(jì)3.1洞口地質(zhì)條件隧道入口,穩(wěn)定性差,偏壓較大,會(huì)出現(xiàn)不同程度的沉降,為第四系沖擊洪、殘破積土層及強(qiáng)弱風(fēng)化層,施工條件差,劃分為Ⅴ類圍巖。風(fēng)化嚴(yán)重,施工過(guò)程應(yīng)多注意防護(hù)。3.2洞門的設(shè)計(jì)方案3.2.1洞門的形式通過(guò)調(diào)查等手段最后決定用端墻式洞門,端墻式洞門簡(jiǎn)圖如3-1。圖3-1端墻式洞門簡(jiǎn)圖3.2.2洞門的基本構(gòu)造要求(1)洞口仰坡坡腳至洞門墻背的水平距離不宜小于1.5m,洞門端墻與仰坡之間水溝的溝底至襯砌拱頂外緣的高度不小于1.0m。3.2.3驗(yàn)算滿足條件表3-1洞門墻設(shè)計(jì)參數(shù)仰坡坡率計(jì)算摩擦角容重基底摩擦系數(shù)基底控制壓應(yīng)力(Mpa)1:0.570250.600.801:0.7560240.500.601:150200.400.40~0.351:1.2543~45180.400.30~0.251:1.538~40170.35~0.400.25表3-2洞門墻主要驗(yàn)算規(guī)定墻身截面荷載效應(yīng)值≤結(jié)構(gòu)抗力效應(yīng)值(按極限狀態(tài)算)墻身截面荷效應(yīng)值≤結(jié)構(gòu)抗力效應(yīng)值(按極限狀態(tài)計(jì)算)墻身截面偏心距≤0.3倍截面厚度滑動(dòng)穩(wěn)定安全系數(shù)基底應(yīng)力σ≤地基容許承載力傾覆穩(wěn)定安全系數(shù)基底偏心距巖石地基≤B/5~B/4;土質(zhì)地基≤B/63.3洞門結(jié)構(gòu)設(shè)計(jì)計(jì)算3.3.1洞門計(jì)算參數(shù)邊、仰坡坡度仰坡坡角,地層容重地層計(jì)算摩擦角基底摩擦系數(shù)0.4;基底控制應(yīng)力3.3.2洞門建筑材料的容重和容許應(yīng)力(1)端墻的材料為水泥砂漿片石砌體,片石的強(qiáng)度等級(jí)為MU100,水泥砂漿的強(qiáng)度為M10。(2)容許壓應(yīng)力,重度。3.3.3洞門各部尺寸擬定擬定洞門端墻高度:H=8m,基底埋入地基的深度為1.0m,洞口仰坡坡腳至洞門墻背的水平距離為1.5m,洞門墻頂高出仰坡坡腳1m,墻厚1.5m,設(shè)計(jì)仰坡1:1.5。3.4洞門驗(yàn)算3.4.1洞門土壓力計(jì)算圖3-2洞門土壓力計(jì)算圖最危險(xiǎn)滑裂面與垂直面之間的夾角:(3-1)式中:代入數(shù)值可得:故:土壓力為:(3-2)(3-3)(3-4)式中:;;;;。得:得:。洞門土壓力:3.4.2抗傾覆驗(yàn)算(3-5);圖3-3端墻計(jì)算簡(jiǎn)圖由圖3-3可知:墻身重量:得:(滿足)3.4.3抗滑動(dòng)驗(yàn)算(3-6)式中:;。(滿足)3.4.4基底合力偏心距驗(yàn)算合力在中心線的右側(cè)。計(jì)算結(jié)果滿足要求。基底控制壓應(yīng)力,滿足。3.4.5墻身截面偏心距及強(qiáng)度驗(yàn)算(1)偏心矩(3-7)式中:代入的公式:(2)應(yīng)力(3-8)(滿足)3.5洞口邊坡錨固設(shè)計(jì)對(duì)洞口邊坡進(jìn)行復(fù)合式錨固,利用混凝土和鋼筋箍筋進(jìn)行錨固設(shè)計(jì),使其達(dá)到施工條件。第四章襯砌內(nèi)力計(jì)算(深埋)4.1基本資料跑馬山二號(hào)公路隧道,圍巖等級(jí)為Ⅴ級(jí),容重為,圍巖彈性抗力系數(shù),襯砌材料為C25混凝土,彈性模量是,容重。圖4-1襯砌結(jié)構(gòu)斷面4.2荷載確定(1)圍巖的豎向均布?jí)毫?(4-1)式中毛洞跨度(2)圍巖水平均布?jí)毫?4.3襯砌幾何要素4.3.1襯砌幾何尺寸;;中心角:4.3.2半拱軸線長(zhǎng)度S及分段軸長(zhǎng)△S4.3.3各分塊接縫(截面)中心幾何要素(1)與豎直軸夾角閉合差(2)接縫中心點(diǎn)坐標(biāo)

接縫中心點(diǎn)坐標(biāo)截面XY00m0m11.5142m0.1846m22.9403m0.7235m34.1985m1.5857m45.2155m2.7220m55.9338m4.0673m66.3117m5.5446m76.3654m6.8568m86.1498m8.3139m圖4-2襯砌結(jié)構(gòu)坐標(biāo)計(jì)算圖示4.4計(jì)算位移4.4.1單位位移表4-1單位位移的計(jì)算截面積分系數(shù)1/300.00000.00001.00000.00000.00000.450.0076131.57890.00000.0000131.57891113.73840.23750.97141.51420.18460.450.0076131.578924.289464.483835184.64174227.47680.46140.88722.94030.72350.450.0076131.578995.1973368.87527390.84882341.34810.66060.75074.19851.58570.450.0076131.5789208.6447330.8478879.71614455.08640.82000.57235.21552.72200.450.0076131.5789358.1578974.90541822.82568.82480.93250.36125.93384.06730.450.0076131.5789535.17092176.73378.6214682.56320.99160.12946.31175.54460.450.0076131.5789729.55244045.0765635.762794.33820.9971-0.07566.36546.85680.450.0076131.5789902.21026186.2758122.27448103.90.9707-0.24026.14988.31390.450.0076131.57891093.9349094.85611414.31∑1008.77163380.336718021.932025791.3763單位位移計(jì)算如下:校核:4.4.2載位移—主動(dòng)荷載在基本結(jié)構(gòu)中引起的位移(1)每一楔塊上的作用力豎向力:水平壓力:自重力:式中:接縫的襯砌截面厚度。

襯砌截面外緣投影長(zhǎng)度截面bh00m0m11.5671m0.1912m21.4769m0.5579m31.3022m0.8927m41.0529m1.1764m50.7434m1.3928m60.3914m1.5295m70.0279m1.5774m80m1.5123m圖4-3襯砌截面外緣投影示意圖表4-2載位移Mp截面集中力力臂00.00000.00000.00000.00000.00000.00000.00000.00000.00001275.804614.704216.82530.72410.75150.3611-199.7101-11.0502-6.07562259.929714.704249.09430.61760.69710.5227-160.5326-10.2503-25.66163229.183014.704278.55620.47580.60300.6544-109.0453-8.8666-51.40724185.307014.7042103.52130.30680.47440.7487-56.8522-6.9757-77.50645130.836014.7042122.56420.12020.31870.8001-15.7265-4.6862-98.0636668.885114.7042134.5936-0.07330.14470.80585.0493-2.1277-108.455574.910314.7042138.8087-0.2523-0.07730.78961.23891.1366-109.603380.000014.7042133.08000.0000-0.15260.69580.00002.2439-92.5971表3-2續(xù)0.00000.00000.00000.00000.00000.00000.00000.00000.00001.51420.18460.00000.0000-216.8359290.508816.82531.42610.5389-414.2946-9.0672-836.6422565.142765.91961.25820.8622-711.0625-56.8359-1773.8597809.0299144.47581.01701.1363-822.7834-164.1679-2902.14531009.041247.99710.71831.3453-724.7942-333.6305-4079.04631154.581370.56130.37791.4773-436.3162-547.4302-5168.32661238.171505.15490.05371.3122-66.4898-662.8643-6004.90851257.785643.9636-0.21561.4571271.1784-938.3194-6762.4027(2)外荷載在基本結(jié)構(gòu)中產(chǎn)生的內(nèi)力彎矩:(4-2)軸力:(4-3)(4-4)(4-5)表4-3載位移計(jì)算表截面00.00001.00000.00000.00000.00000.00000.000010.23750.9714290.508816.825368.995816.344152.651720.46140.8872565.142765.9196260.756858.4839202.272930.66060.7507809.0299144.4758534.4452108.4580425.987240.82000.57231009.041247.9971827.4136141.9287685.484950.93250.36121154.581370.56131076.6468133.8467942.800160.99160.12941238.171505.15491227.770465.36701162.403470.9971-0.07561257.785643.96361254.1374-48.68361302.821080.9707-0.24021272.489777.04361235.2051-186.64591421.8510主動(dòng)荷載產(chǎn)生彎矩的校核為:閉合差(3)主動(dòng)荷載位移表4-4主動(dòng)荷載位移計(jì)算表截面積分系數(shù)1/300.0000131.57890.00000.00000.00000.00000.000011-216.8359131.578924.289461.1846-28531.0292-5266.8269-33797.857242-836.6422131.578995.197331.7235-110084.4604-79646.1036-189730.567423-1773.8597131.5789208.64472.5857-233402.5081-370106.4249-603508.865144-2902.1453131.5789358.15783.7220-3818619759-1421286.962925-4079.0463131.5789535.17095.0673-536716.4252-2182986.8795-2719703.141446-5168.3266131.5789729.55246.5446-680042.7289-3770565643427-6004.9085131.5789902.21027.8568-790119.2550-5417689.6988-6207808.962948-6762.4027131.57891093.9349.3139-889789.5086-7397622.2352-8287410.50441∑-3196280.9765-16360365.2882-19556645.3861校核:4.4.3載位移(1)各接縫處的抗力強(qiáng)度接縫3,QUOTE接縫5,最大抗力值以上各截面抗力強(qiáng)度按下式計(jì)算:(4-6)算得:QUOTE最大抗力值以下各截面抗力強(qiáng)度按下式計(jì)算:(4-7)得:QUOTE各楔塊上的抗力集中力R按下式近似計(jì)算:(4-8)抗力集中力與摩擦另力的合力R按下式計(jì)算:(4-9)則:(4-10)將R分解為水平與豎直兩個(gè)分力:(4-11)表4-5彈性抗力及摩擦力計(jì)算表截面30.00000.00001.58260.00000.00000.00001.00000.00000.000040.54500.27251.58260.439761.69380.88040.47420.38720.208651.00000.77251.58261.246773.79510.96030.27911.19730.348060.89040.94521.58261.525486.75420.99840.05661.52310.086370.54760.7191.58031.158799.41230.9865-0.16351.1431-0.189580.00000.27381.53450.4284108.96350.9457-0.32500.4052-0.1393(5)計(jì)算單位抗力及其相應(yīng)摩擦力在其基本結(jié)構(gòu)中產(chǎn)生的內(nèi)力彎矩:(4-12)軸力:(4-13)表4-6計(jì)算表截面R4=0.4398R5=1.2468R6=1.5255R7=1.1587R8=0.428540.5462-0.2402-0.240252.0711-0.91090.7273-0.9068-1.817763.5516-1.56202.2515-2.80720.8137-1.2413-5.610574.9126-2.16063.7291-4.64942.3432-3.57460.8555-0.9913-11.375986.0973-2.68165.0786-6.33203.8025-5.80072.3503-2.72331.0128-0.4340-17.9716表4-7計(jì)算表截面455.08640.82000.57230.20860.17110.38720.2216-0.0505568.82480.93250.36120.55660.51901.58450.5723-0.0533682.56320.99160.12940.64290.63753.10760.40210.2354794.33820.9971-0.07560.45340.45214.2507-0.32140.77358103.90.9707-0.24020.31410.30494.6559-1.11831.4232(6)單位抗力及相應(yīng)摩擦力產(chǎn)生的載位移表4-8單位抗力及摩擦力產(chǎn)生的載位移計(jì)算表截面()積分系數(shù)1/34-0.2402131.5789358.15783.7220-31.6053-86.0295-117.634925-1.8177131.5789535.17095.0673-239.1710-972.7801-1211.951246-5.6105131.5789729.55246.5446-738.2234-4093.1537-4831.376927-11.3759131.5789902.21027.8568-1496.8284-10263.4530-11760.281448-17.9716131.57891093.9349.3139-2364.6834-19659.7443-22024.42471∑-3616.1128-24321.0144-27937.1262計(jì)算精度校核閉合差4.4.4墻底位移一個(gè)彎矩轉(zhuǎn)角:荷載作用的轉(zhuǎn)角:抗力及其相應(yīng)摩擦力的轉(zhuǎn)角:4.5解力法方程襯砌矢高:系數(shù)為:

求解方程為:4.6計(jì)算主動(dòng)荷載和被動(dòng)荷載分別產(chǎn)生的襯砌內(nèi)力(4-14)(4-15)表4-9主被動(dòng)荷載作用下襯砌彎矩表截面00.0000517.65920.0000517.65920.0000-4.16630.0000-4.16631-216.8359517.6592139.1677439.9910.0000-4.16630.4871-3.67922-836.6422517.6592545.4377226.45470.0000-4.16631.9090-2.25733-1773.8597517.65921195.4396-60.76090.0000-4.16634.18390.01764-2902.1453517.65922052.0820-332.404-0.2402-4.16637.18202.77555-4079.0463517.65923066.2870-495.1-1.8177-4.166310.73164.74766-5168.3266517.65924180.0052-470.662-5.6105-4.166314.62944.85267-6004.9085517.65925169.2565-317.993-11.3759-4.166318.09172.54958-6762.4027517.65926267.746123.0026-17.9716-4.166321.9362-0.2017表4-10主、被動(dòng)荷載作用下襯砌軸力計(jì)算表截面00.0000753.8876753.88760.00002.63852.6385152.6517732.3264784.97810.00002.56302.5632202.2729668.8491871.12200.00002.34092.34093425.9872565.9434991.93060.00001.98071.98074685.4849431.44991116.9348-0.05051.51001.45955942.8001272.30421215.1043-0.05330.95300.899761162.403497.55311259.95650.23540.34140.576871302.8210-56.99391245.82710.7735-0.19950.57481421.8510-181.08381240.76721.4232-0.63380.78944.7最大抗力值(4-16)(4-17)修正如下:(4-18)(4-19)表4-11最大抗力位移修正表截面積分系數(shù)1/3068113.0281-548.19720.00004.0673277036.1192-2229.68251157893.5318-484.10510.18463.8827224783.2159-1879.63494229796.6603-297.01310.72353.343899634.0727-993.152423-7994.85242.31581.58572.4816-19840.02575.746944-43737.3527365.19722.72201.3453-58839.8606491.299825-65144.7134624.68404.06730.00000.00000.00004∑392799.1014-3576.3132位移值為:可以得到的最大抗力是:4.8計(jì)算襯砌總內(nèi)力(4-20)校核:(4-21)閉合差:式中:閉合差:表4-12襯砌總內(nèi)力計(jì)算表截面Me積分系數(shù)1/30517.6592-451.97165.68828643.18110.0000753.8876286.23131040.11890.06311439.991-399.12940.8625376.5770992.5161784.9781278.04091063.01900.03842226.4547-244.878-18.4233-2424.1175-1753.8490871.1220253.94691125.0689-0.01623-60.76091.909294-58.8516-7743.6288-12279.0722991.9306214.87151206.8021-0.04944-332.404301.0935-31.3105-4119.8011-11214.09861116.9348158.33041275.2652-0.02525-495.1515.03219.9322622.630610667.02541215.104397.60181312.70610.01546-470.662526.422755.76077336.931640680.35091259.956562.572761322.52930.04227-317.993276.5764-41.4166-5449.5507-37366.47921245.827162.269011308.0961-0.0324823.0026-21.88091.1217147.59211227.06601240.767285.636161326.40340.0011∑-3466.3628-31764.05574.9內(nèi)力圖將內(nèi)力計(jì)算結(jié)果按比例繪制彎矩圖M及軸力圖N圖4-3襯砌結(jié)構(gòu)內(nèi)力圖4.10襯砌驗(yàn)算(4-22)(4-23)(4-24)1.拱頂截面(截面0)(1)根據(jù)構(gòu)造適配今筋(2)偏心距的計(jì)算(3)假定為大偏心構(gòu)件偏心距增大系數(shù)。(4)在彎矩作用平面的強(qiáng)度驗(yàn)算縱向受力鋼筋采用HRB335,面積,鋼筋直徑。箍筋選?;炷翉?qiáng)度等級(jí)采用,混凝土保護(hù)層厚度為,經(jīng)查規(guī)范抗拉強(qiáng)度標(biāo)準(zhǔn)分別為,,混凝土強(qiáng)度值為。N作用于和中心之間時(shí)由式得解得而。且2,。為小偏心受壓構(gòu)件,截面承載力驗(yàn)算按下式計(jì)算:(4-25)左邊=右邊=左邊<右邊由于作用在鋼筋與鋼筋重心之間故還應(yīng)滿足下式:(4-26)由于,故上式顯然滿足2、最大軸力面(截面8)(1)根據(jù)構(gòu)造配筋(2)偏心距計(jì)算(3)假定為大偏心構(gòu)件偏心距增大系數(shù)。(4)在彎矩作用平面的強(qiáng)度驗(yàn)算縱向受力鋼筋采用HRB335,面積,鋼筋直徑。箍筋選?;炷翉?qiáng)度等級(jí)采用,混凝土保護(hù)層厚度取,經(jīng)查規(guī)范抗力強(qiáng)度標(biāo)準(zhǔn)值分別為,混凝土強(qiáng)度標(biāo)準(zhǔn)值為。,N作用于和中心之間解得而,。且,。為小偏心受壓構(gòu)件截面承載力驗(yàn)算按下式計(jì)算:(4-27)左邊:右邊:由于N作用在鋼筋和鋼筋重心之間,故還應(yīng)滿足下式:(4-28)由于,故上式顯然滿足。

第五章襯砌內(nèi)力計(jì)算(淺埋)5.1圍巖壓力計(jì)算5.1.1圍巖豎向壓力(5-1)式中:隧道埋深取;側(cè)壓力系數(shù);(5-2)其中:;側(cè)壓力系數(shù):所以圍巖豎向荷載2、水平側(cè)壓力為:5.1.2襯砌幾何要素1、襯砌幾何尺寸;;;5.1.3半拱軸線長(zhǎng)度S及分段軸長(zhǎng)△S5.1.4各分塊接縫(截面)中心幾何要素(1)與豎直軸夾角(2)接縫中心點(diǎn)坐標(biāo)接縫中心點(diǎn)坐標(biāo)截面XY00m0m11.4177m0.1706m22.7543m0.6727m33.9337m1.4776m44.8885m2.5394m55.5640m3.7973m65.9218m5.1797m75.9510m6.6127m85.7236m8.0241m圖5-1接縫中心坐標(biāo)示意圖表5-1單位位移的計(jì)算見(jiàn)截面積分系數(shù)1/301.00000.550.013971.942471.94241113.72510.23730.97141.41770.17060.550.013971.942412.273382.09383998.58304227.45020.46100.88742.75430.67270.550.013971.942448.3956832.55578201.28962341.17530.65840.75273.93371.47760.550.013971.9424106.3022157.0721441.61884454.90040.81820.57504.88852.53940.550.013971.9424182.6906463.9246901.24842568.62550.93120.36455.56403.79730.550.013971.9424273.18711037.3731655.68974682.35060.99110.13315.92185.17970.550.013971.9424372.64031930.1652747.38792794.31520.9972-0.07525.95106.61270.550.013971.9424475.73383145.8854169.295148103.99160.9703-0.24185.72368.02410.550.013971.9424577.27344632.0995858.58851∑755.39523288.03220793.083028124.5443單位位移計(jì)算如下:校核:5.1.5載位移—主動(dòng)荷載在基本結(jié)構(gòu)中引起的位移(1)每一楔塊上的作用力豎向力:水平壓力:自重力:襯砌截面外緣投影長(zhǎng)度截面bh00m0m11.4829m0.1785m21.3982m0.5252m31.2337m0.8420m40.9987m1.1106m50.7067m1.3159m60.3743m1.4459m70.0308m1.4903m80m1.4572m圖5-2襯砌外緣投影示意圖表5-2載位移Mp截面集中力力臂-Qa-Ga-EaQGE01673.618918.105936.42050.67090.70370.4008-451.9309-12.7411-14.597342635.143318.1059107.16000.55660.65330.5486-353.5208-11.8286-58.787983560.417818.1059171.79870.41050.56560.6650-230.0515-10.2407-114.24614453.667318.1059226.60290.24110.44550.7434-109.3792-8.0662-168.45665321.024018.1059268.49160.05780.30010.7793-18.5552-5.4336-209.23556170.028718.1059295.0164-0.12880.13750.770821.8997-2.4896-227.3986713.991118.1059304.0756-0.2984-0.02350.72504.17490.4255-220.454880.000018.1059297.32200.0000-0.14350.65710.00002.5982-195.3703續(xù)上表1.41770.1706-479.2693691.724836.42051.33660.5021-924.559-18.2867-1846.25241344.9740143.58051.17940.8049-1586.26-115.5679-3902.61861923.4977315.37920.95481.0618-1836.56-334.8696-6359.95022395.2709541.98210.67551.2579-1618.01-681.7593-8892.94382734.4008810.47370.35781.3824-978.369-1120.3988-11199.70012922.53541105.49010.02921.433-1.8518-1584.1673-13085.05982954.63241409.5657-0.22741.4114671.8834-1989.4610-14595.4095(2)外荷載在基本結(jié)構(gòu)中產(chǎn)生的內(nèi)力彎矩:(5-3)軸力:(5-4)式中相鄰兩接縫中心點(diǎn)的坐標(biāo)增值,按照下式進(jìn)行計(jì)算:(5-5)(5-6)表5-3載位移計(jì)算表截面01.00010.23730.9714691.724836.4205164.146335.3789128.767420.46100.88741344.9740143.5805620.0330127.4133492.619730.65840.75271923.4977315.37921266.4309237.38591029.04540.81820.57502395.2709541.98211959.8107311.63971648.17150.93120.36452734.4008810.47372546.2740295.41772250.856360.99110.13312922.53541105.49012896.5248147.14072749.384170.9972-0.07522954.63241409.56572946.3594-105.99933052.358780.9703-0.24182972.73831706.88772884.4480-412.72543297.1734基本結(jié)構(gòu)中,主動(dòng)荷載產(chǎn)生彎矩的校核為:閉合差(3)主動(dòng)荷載位移表5-4主動(dòng)荷載位移計(jì)算表截面積分系數(shù)1/3071.94241.000011-479.269371.942412.273381.1706-34479.7837-5882.2542-40362.034842-1846.252471.942448.395681.6727-132823.8287-89350.6403-222174.418223-3902.618671.9424106.30222.4776-280763.7484-414856.9429-695620.263044-6359.950271.9424182.69063.5394-4575501180-1619452.757625-8892.943871.9424273.18714.7973-639779.7200-2429437.5272-3069215.250946-11199.700171.9424372.64036.1797-805733.3045-4173459.6052-4979190.101727-13085.059871.9424475.73387.6127-941370.6062-6225005.2219-7166372.013548-14595.409571.9424577.273497884-8425541.6665-9475564.78951∑-3809272.8835-18525232.06-22334492.53校核:5.1.6載位移(1)各接縫處的抗力強(qiáng)度接縫3,QUOTE接縫5,(5-7)得:QUOTE最大抗力值以下各截面抗力強(qiáng)度按下式計(jì)算:(5-8)算得:QUOTE(2)各楔塊上的抗力集中力R按下式近似計(jì)算:(5-9)(3)抗力集中力與摩擦另力的合力R(4)按下式計(jì)算:(5-10)(5)則:(5-11)將R分解為水平與豎直兩個(gè)分力:(5-12)表5-5彈性抗力及摩擦力計(jì)算表截面σR31.497240.54400.2721.49720.415361.62310.87980.47530.36540.197451.00000.7721.49721.178773.56700.95920.28291.13060.333560.89170.94591.49721.444286.60420.99820.05921.44160.085570.55330.72251.49341.100399.97850.9849-0.17331.0837-0.190780.27671.47770.4170108.84720.9464-0.32300.3946-0.1347(6)計(jì)算單位抗力及其相應(yīng)摩擦力在其基本結(jié)構(gòu)中產(chǎn)生的內(nèi)力彎矩:(5-13)軸力:(5-14)表5-6計(jì)算表截面R4=0.4153R5=1.1787R6=1.4442R7=1.1003R8=0.417040.5263-0.2186-0.218651.9541-0.81150.7101-0.8370-1.642263.3404-1.38732.1372-2.51910.7723-1.1154-5.021874.6151-1.91673.5186-4.14742.2072-3.18760.8233-0.9059-10.157385.7488-2.38754.8080-5.66723.6026-5.20292.2528-2.47880.9986-0.4164-16.1528表5-7計(jì)算表截面454.90040.81820.57500.19740.16150.36540.2101-0.0486568.62550.93120.36450.53090.49441.4960.5453-0.0509682.35060.99110.13310.61640.61092.93760.39100.2199794.31520.9972-0.07520.42570.42454.0213-0.30240.72698103.99160.9703-0.24180.2910.28244.4159-1.06781.3502(7)單位抗力及相應(yīng)摩擦力產(chǎn)生的載位移表5-8單位抗力及摩擦力產(chǎn)生的載位移計(jì)算表截面()積分系數(shù)1/34-0.218671.9424182.69063.5394-15.7266-39.9362-55.662825-1.642271.9424273.18714.7973-118.1438-448.6279-566.771346-5.021871.9424372.64036.1797-361.2803-1871.3251-2232.604127-10.157371.9424475.73387.6127-730.7405-4832.1709-5562.908548-16.152871.9424577.27349.0241-1162.0712-9324.5818-10486.64671∑-1770.5407-11423.4332-13193.9666計(jì)算精度校核閉合差5.1.7墻底位移單位彎矩作用下的轉(zhuǎn)角:主動(dòng)荷載作用下的轉(zhuǎn)角:?jiǎn)挝豢沽捌湎鄳?yīng)摩擦力作用下的轉(zhuǎn)角:5.2解力法方程襯砌矢高:計(jì)算力法方程的系數(shù)為:

求解方程為:5.3計(jì)算主動(dòng)荷載和被動(dòng)荷載分別產(chǎn)生的襯砌內(nèi)力(5-15)(5-16)表5-9主、被動(dòng)荷載作用下襯砌彎矩計(jì)算表截面01154.11251154.1130-3.7398-3.73981-479.26931154.1125286.8192961.6624-3.73980.4212-3.31852-1846.25241154.11251130.9690438.8291-3.73981.6610-2.07873-3902.61861154.11252484.1970-264.3090-3.73983.6486-0.09164-6359.95021154.11254269.3360-936.5020-0.2186-3.73986.27052.31215-8892.94381154.11256384.1650-1354.6700-1.6422-3.73989.376673.99466-11199.70011154.11258708.3080-1337.2800-5.0218-3.739812.79024.02867-13085.05981154.112511117.5200-813.4270-10.1573-3.739816.32872.43168-14595.40951154.112513490.420049.1230-16.1528-3.739819.8139-0.0786表5-10主、被動(dòng)荷載作用下襯砌軸力計(jì)算表截面01681.2381681.2382.46932.46931128.76741633.1551761.9222.39872.39872492.61971491.9311984.5512.19132.191331029.0451265.4682294.5131.85861.858641648.171966.71192614.883-0.04861.41981.371252250.8563612.81132863.668-0.05090.90010.849262749.3841223.77282973.1570.21990.32870.548673052.3587-126.4292925.930.7269-0.18570.541283297.1734-406.5232890.651.3502-0.59710.75315.4最大抗力值求解(5-17)(5-18)修正如下:(5-19)(5-20)表5-11最大抗力位移修正計(jì)算表截面積分系數(shù)1/3083029.6600-269.05010.00003.7973315288.5-1021.661169184.3000-238.74320.17063.6267250910.7-865.8524231570.4200-149.54630.67273.124698644.93-467.27423-19015.2315-6.558261.47762.3197-44109.1-15.213244-67374.2263166.34092.53941.2579-84750209.240225-97458.2255287.38633.79730.00000.00000.00004∑390094.9-1687.33位移值為:則可得最大抗力:5.5計(jì)算襯砌總內(nèi)力按下式進(jìn)行計(jì)算:(5-21)(5-22)閉合差:閉合差:表5-12襯砌總內(nèi)力計(jì)算表截面積分系數(shù)1/301154.1130-842.223311.889822438.13211681.238556.09972237.33770.139411961.6624-747.353214.309315417.93562630.29801761.922540.20022302.12220.093042438.8291-468.134-29.3054-2108.3154-1418.25421984.551493.49262478.0436-0.011823-264.3090-20.5297-284.8387-20492.3251-30278.95352294.513418.56682713.0798-0.104944-936.5020520.7064-415.7956-29913.3235-75961.93422614.883308.80162923.6846-0.142225-1354.6742899.6219-455.0481-32737.3566-124313.23122863.668191.24443054.9124-0.148946-1337.2823907.2692-430.0108-30936.5640-160239.4322973.157123.54773096.7047-0.138827-813.4270547.6185-265.8085-19122.9231-126454.12925.93121.88123047.8112-0.08724849.1230-17.721431.40162259.106318127.33552890.65169.60223060.25220.01021∑-109651.63-523591.625.6內(nèi)力圖將內(nèi)力計(jì)算結(jié)果按比例繪制彎矩圖M及軸力圖N圖5-3襯砌結(jié)構(gòu)內(nèi)力圖5.7襯砌驗(yàn)算(5-23)(5-24)(5-25)1.拱頂截面(截面0)(1)根據(jù)構(gòu)造適配今筋(2)偏心距的計(jì)算(3)在彎矩作用平面的強(qiáng)度驗(yàn)算縱向受力鋼筋采用HRB335,面積,鋼筋直徑。箍筋選?;炷翉?qiáng)度等級(jí)采用,混凝土保護(hù)層厚度取,經(jīng)查規(guī)范抗拉強(qiáng)度標(biāo)準(zhǔn)分別為,,混凝土強(qiáng)度值為.N作用于和中心之間時(shí)由式得解得而。且,。為小偏心受壓構(gòu)件截面承載力驗(yàn)算按下式計(jì)算:(5-26)左邊=右邊=左邊<右邊由于作用在鋼筋與鋼筋重心之間故還應(yīng)滿足下式:(5-27)由于,故上式顯然滿足2、最大軸力面(截面8)(1)根據(jù)構(gòu)造配筋其中:b為截面寬度,d為截面寬度(2)偏心距計(jì)算(3)在彎矩作用平面的強(qiáng)度驗(yàn)算縱向受力鋼筋采用HRB335,面積,鋼筋直徑25mm。箍筋選10mm?;炷翉?qiáng)度等級(jí)采用C25,混凝土保護(hù)層厚度取50mm,經(jīng)查規(guī)范抗力強(qiáng)度標(biāo)準(zhǔn)值分別為,混凝土強(qiáng)度標(biāo)準(zhǔn)值為。,N作用于和中心之間解得而,。且,。為小偏心受壓構(gòu)件截面承載力驗(yàn)算按下式計(jì)算:(5-28)左邊:右邊:由于N作用在鋼筋和鋼筋重心之間,故還應(yīng)滿足下式:(5-29)由于,故上式顯然滿足。

第六章通風(fēng)計(jì)算6.1隧道需風(fēng)量計(jì)算道路等級(jí):高速公路,分離式雙向4車道(計(jì)算單洞)設(shè)計(jì)交通量:近期:14100輛/日,遠(yuǎn)期25100輛/日,高峰小時(shí)交通量按日交通量的14%計(jì)算;6.1.1CO排放量計(jì)算(1)取CO基準(zhǔn)排放量為:近期遠(yuǎn)期(2)考慮CO的車況系數(shù)為:(3)依據(jù)規(guī)范,分別考慮工況車速80km/h,60km/h,40km/h,20km/h,10km/h(阻滯)。不同工況下的速度修正系數(shù)和車密度修正系數(shù)如下表表6-1速度修正系數(shù)和車密度修正系數(shù)工況車速(km/h)80604020101.00001.00001.00000.80000.80000.75001.00001.50003.00006.0000(4)CO的海拔高度修正系數(shù):相對(duì)海拔高度:H=(2560+2521.6)/2=2540.8m,(5)CO的車型系數(shù)如下表:表6-2CO的車型系數(shù)車型各種柴油車汽油車小客車旅行車、輕型貨車中型貨車大型貨車、拖掛車1.00001.00002.50005.00007.0000(6)交通量分解:(上下行交通量不均衡系數(shù)1.1)表6-3車輛折算系數(shù)汽車代表車型車輛折算系數(shù)說(shuō)明小客車119座的客車和載質(zhì)量2t的貨車中型車1.5>19座的客車和載質(zhì)量>2t7t的貨車大型車214t載質(zhì)量>7t,貨車拖掛車3載質(zhì)量>14t,貨車單洞高峰小時(shí)交通量為:近期:遠(yuǎn)期:計(jì)算各情況下全隧道的CO排放量:同樣可以計(jì)算其他各工況車速下CO排放量如表所示:表6-4各工況車速下CO排放量工況車速8060402010近期CO排放量2.63253.515.26518.424116.8481遠(yuǎn)期CO排放量4.03015.37348.060112.896125.79236.1.2稀釋CO所需需風(fēng)量(1)根據(jù)規(guī)范。取CO設(shè)計(jì)濃度為:(2)隧道內(nèi)平均氣溫:,換算為絕對(duì)溫度(3)隧址大氣壓無(wú)實(shí)測(cè)值,按下式計(jì)算計(jì)算可得:(4)稀釋CO的需風(fēng)量:(以工況車速為10Km/h)表6-5稀釋CO的需風(fēng)量工況車速8060402010近期稀釋CO需風(fēng)量138.1867184.2489276.3786442.2026884.4001遠(yuǎn)期稀釋CO需風(fēng)量211.5503282.0636423.0953676.94941353.90426.1.3煙霧排放量計(jì)算(1)取煙霧的基準(zhǔn)排放量為:近期:遠(yuǎn)期:(2)考慮煙霧的車況系數(shù)為:(3)速度修正速度和車密度修正系數(shù)如下表:表6-6速度修正速度和車密度修正系數(shù)工況車速80604020100.70.650.630.450.450.7511.536(4)柴油車交通量(如CO)平均海拔高度:H=(2560+2521.6)/2=2540.8m,考慮煙霧的車型系數(shù)如下表:表6-7車型系數(shù)柴油車輕型貨車中型貨車重型貨車、大型客車、拖掛車集裝箱車0.41.01.534計(jì)算各工況下全隧道的煙霧排放量:同樣可以計(jì)算其他各工況車速下煙霧排放量如表所示:表6-8各工況車速下煙霧排放量(單位:)工況車速8060402010煙霧排放量(近期)1.17711.452.113.02676.0534煙霧排放量(遠(yuǎn)期)1.79822.223.234.62399.24786.1.4稀釋煙霧所需需風(fēng)量(1)煙霧濃度設(shè)計(jì)值為,則煙霧稀釋系數(shù)為(2)煙霧稀釋的需風(fēng)量為:表6-9稀釋煙霧的需風(fēng)量單位工況車速8060402010煙霧稀釋需風(fēng)量(近期)168.1571207.1429301.4286432.3857864.7714煙霧稀釋需風(fēng)量(遠(yuǎn)期)256.8857317.1429461.4286660.55711321.1146.1.5稀釋空氣內(nèi)異味的需風(fēng)量每小時(shí)換氣5次:6.1.6考慮火災(zāi)時(shí)排煙的需風(fēng)量6.1.7結(jié)論表6-10不同工況車速下各自的最大需風(fēng)量工況車速(Km/h)8060402010CO近期138.1867184.2489276.3786442.2026884.4001遠(yuǎn)期211.5503282.0636423.0953676.94941353.9042煙霧近期168.1571207.1429301.4286432.3857864.7714遠(yuǎn)期256.8857317.1429461.4286660.55711321.114稀釋空氣內(nèi)異味256.0901256.0901256.0901256.0901256.0901考慮火災(zāi)需風(fēng)量254.91254.91254.91254.91254.91最終確定近期需風(fēng)量256.0901256.0901301.4286432.3857884.4001最終確定遠(yuǎn)期需風(fēng)量256.8857317.1429461.4286676.94941353.90426.2單向交通隧道射流風(fēng)機(jī)縱向通風(fēng)計(jì)算6.2.1計(jì)算條件隧道設(shè)計(jì)風(fēng)速:表6-11不同工況車速下需風(fēng)量和設(shè)計(jì)風(fēng)速車速(m/s)22.2216.6711.115.562.78近期需風(fēng)量()256.0901256.0901301.4286432.3857884.4001遠(yuǎn)期需風(fēng)量()256.8857317.1429461.4286676.94941353.9042近期設(shè)計(jì)風(fēng)速(m/s)3.01393.01393.54755.088710.4084遠(yuǎn)期設(shè)計(jì)風(fēng)速(m/s)3.02333.73245.43057.966915.93396.2.2隧道內(nèi)所需升壓力(1)空氣在隧道內(nèi)流動(dòng)受到的摩擦阻力及出入口損失為:(2)隧道兩洞口的等效壓差。由于無(wú)實(shí)測(cè)資料,引起隧道自然風(fēng)流的洞口的等效壓差?。?)交通風(fēng)產(chǎn)生的風(fēng)壓力為:(6-1)汽車等效抗阻面積:隧道內(nèi)車輛數(shù):近期:遠(yuǎn)期:則近期:遠(yuǎn)期:所需的升壓力為:近期:遠(yuǎn)期:6.2.31120型射流風(fēng)機(jī)所需臺(tái)數(shù)射流風(fēng)機(jī)每臺(tái)的升壓力計(jì)算:(6-2)表6-12各工況車速下的所需風(fēng)機(jī)臺(tái)數(shù)車速km/h8060402010近期(pa)-151.0127-77.7716-4.0208104.4831162.5785遠(yuǎn)期(pa)-302.0618-147.8223-4.255787.2723-353.9237風(fēng)機(jī)臺(tái)數(shù)(近期)11--風(fēng)機(jī)臺(tái)數(shù)(遠(yuǎn)期)10--根據(jù)公式由之前表中查的,根據(jù)公式,得根據(jù)公式(6-3)取近期遠(yuǎn)期再根據(jù)公式()得:近期:遠(yuǎn)期:1120型射流風(fēng)機(jī)每臺(tái)的升壓力:(6-4)由于:則,近期:遠(yuǎn)期:所需風(fēng)機(jī)臺(tái)數(shù):近期:遠(yuǎn)期:第七章照明計(jì)算7.2照明基本參數(shù)接近段長(zhǎng)度,洞外亮度入口段亮度:入口段平均照度:入口段長(zhǎng)度:路面平均照度公式為:過(guò)渡段Ⅰ的亮度:平均照度:長(zhǎng)度:過(guò)渡段Ⅱ的亮度:平均照度:長(zhǎng)度:過(guò)渡段Ⅲ的亮度:平均照度:長(zhǎng)度:中間段亮度:出口段亮度取中間段亮度的5倍,即:,長(zhǎng)度取60m。7.3燈具布置基本段取中間段布燈間距:取,,(100w高壓鈉燈)加強(qiáng)段:入口段的布燈間距:(400w高壓鈉燈)過(guò)渡段Ⅰ的布燈間距:(250w高壓鈉燈)過(guò)渡段Ⅱ的布燈間距:(150w高壓鈉燈)過(guò)渡段Ⅲ的布燈間距:(100w高壓鈉燈)出口端的布燈間距:(150w高壓鈉燈)7.4基本資料(遠(yuǎn)期)隧道設(shè)計(jì)車速80km/h,雙車道單向交通,水凝混凝土路面,縱坡-1.5%,設(shè)計(jì)交通量1933輛/小時(shí),隧道內(nèi)路面寬度W=8.75m,燈具安置高5.5米,雙側(cè)對(duì)稱布置。7.5照明基本參數(shù)接近段長(zhǎng)度,洞外亮度入口段亮度:入口段平均照度:入口段長(zhǎng)度:路面平均照度公式為:過(guò)渡段Ⅰ的亮度:平均照度:長(zhǎng)度:過(guò)渡段Ⅱ的亮度:平均照度:長(zhǎng)度:過(guò)渡段Ⅲ的亮度:平均照度:長(zhǎng)度:中間段亮度:出口段亮度取中間段亮度的5倍,即:,長(zhǎng)度取60m。7.6燈具布置(遠(yuǎn)期)基本段取中間段布燈間距:取,,(100w高壓鈉燈)加強(qiáng)段:入口段的布燈間距:(400w高壓鈉燈)過(guò)渡段Ⅰ的布燈間距:(250w高壓鈉燈)過(guò)渡段Ⅱ的布燈間距:(150w高壓鈉燈)過(guò)渡段Ⅲ的布燈間距:(100w高壓鈉燈)出口端的布燈間距:(150w高壓鈉燈)7.8調(diào)光表7-1白天調(diào)光分級(jí)亮度調(diào)光Ⅰ晴天L20(S)開(kāi)所有燈Ⅱ多云天0.5L20(S)開(kāi)一半的燈Ⅲ陰天0.25L20(S)開(kāi)1/4的燈表7-2夜間調(diào)光分級(jí)亮度調(diào)光Ⅰ交通量較大與Lin相同開(kāi)所有基本照明燈Ⅱ交通量較小0.5Lin但不小于1cd/m2開(kāi)一半的基本照明燈第八章施工組織設(shè)計(jì)8.1工程概況公路等級(jí):高速公路;設(shè)計(jì)時(shí)速:80km/h;圍巖等級(jí):Ⅴ級(jí)圍巖;隧道類型:曲墻拱隧道;支護(hù)形式:復(fù)合式襯砌;洞門類型:端墻式洞門;8.2預(yù)定目標(biāo)承諾質(zhì)量目標(biāo):符合《公路工程質(zhì)量檢驗(yàn)評(píng)定標(biāo)準(zhǔn)》,保證各項(xiàng)指標(biāo)的達(dá)標(biāo)率安全目標(biāo):減少和避免人員的傷亡率環(huán)境保護(hù)目標(biāo):減少在施工過(guò)程過(guò)程中的環(huán)境的污染,及時(shí)清理使用過(guò)的施工廢料8.3編制說(shuō)明(1)根據(jù)現(xiàn)場(chǎng)的地質(zhì)勘察報(bào)告,進(jìn)行水文地質(zhì)交通情況等的進(jìn)行調(diào)查(2)根據(jù)國(guó)家的相關(guān)規(guī)定,從設(shè)計(jì)規(guī)范、施工過(guò)程、技術(shù)要求等。(3)《公路隧道施工技術(shù)規(guī)范》(JTJ042-94)8.4工程施工總體部署8.4.1施工原則(1)根據(jù)現(xiàn)有的初步設(shè)計(jì)進(jìn)行施工組織的編制(2)采用新技術(shù)、新材料、新工藝、新設(shè)備,保證質(zhì)量安全(3)減少對(duì)環(huán)境的危害,追求可持續(xù)發(fā)展(4)滿足施工的工期、施工的安全、環(huán)境的保護(hù)和工程質(zhì)量的要求8.5工程質(zhì)量和工期的保證原則8.5.1質(zhì)量保證原則在施工過(guò)程中進(jìn)行控制和管理。建立健全質(zhì)量保證體系,明確工程質(zhì)量方針,、采取有效的的質(zhì)量保證措施,用心組織、用心施工,保證質(zhì)量的達(dá)標(biāo)、力爭(zhēng)國(guó)優(yōu)。對(duì)材料的檢測(cè)。對(duì)水泥、鋼筋等進(jìn)行有效期限和合格證的檢測(cè),嚴(yán)格要求質(zhì)量符合要求,對(duì)砂、石等進(jìn)行強(qiáng)度測(cè)試,同樣嚴(yán)格要求符合設(shè)計(jì)要求。在施工過(guò)程中的檢查。對(duì)水泥、砂、石的比例的進(jìn)行檢查,及配合比和坍落度的實(shí)驗(yàn)檢測(cè),并記錄在施工過(guò)程表中,以確保達(dá)到規(guī)定要求。在鋼筋綁扎和混凝土澆筑的過(guò)程進(jìn)行嚴(yán)格的審查和監(jiān)督。嚴(yán)格把關(guān)模板的質(zhì)量,從設(shè)計(jì)、加工、安裝、拆模等方面嚴(yán)格控制,為混凝土施工打好基礎(chǔ)。施工過(guò)程中,按實(shí)驗(yàn)檢測(cè)規(guī)定的方法和工的要求使用對(duì)應(yīng)的儀器進(jìn)行檢測(cè),用檢測(cè)出的數(shù)據(jù)進(jìn)行指導(dǎo)施工和質(zhì)量評(píng)定,有情況立即上報(bào)。8.5.2工期保證原則根據(jù)本工程的工期要求,使用網(wǎng)絡(luò)計(jì)劃技術(shù),采取動(dòng)態(tài)管理,科學(xué)組織施工,合理配置資源,使各項(xiàng)分部工程施工施工有序,充分利用資源,保證施工的總體進(jìn)度,從而保證工程的順利完成。優(yōu)化資源配置。優(yōu)先保證人力、物資、設(shè)備的高效利用。精心組織,精密安排,保證材料設(shè)備的進(jìn)場(chǎng)不影響施工進(jìn)度。保證在節(jié)假日內(nèi)的工程進(jìn)度,認(rèn)真安排后續(xù)工作。8.6環(huán)保原則充分了解隧道周邊情況

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