永泰至莆田段XPFJ-10標(biāo)段隧道施工技術(shù)設(shè)計(jì)


摘 要
本畢業(yè)設(shè)計(jì)為向塘至莆田鐵路工程永泰至莆田段XPFJ-10標(biāo)段隧道施工技術(shù)設(shè)計(jì)。設(shè)計(jì)以新建鐵路向蒲線永泰至莆田段站前工程修改初步設(shè)計(jì)（供招標(biāo)用）設(shè)計(jì)圖紙。建設(shè)單位組織的標(biāo)前會議及補(bǔ)遺書、答疑書等有關(guān)內(nèi)容和精神為基礎(chǔ)，依據(jù)現(xiàn)行鐵路隧道施工技術(shù)規(guī)范，對隧道總體施工組織布置及規(guī)劃、施工準(zhǔn)備、總體施工方案、施工方案方法及工藝、工程質(zhì)量保證措施、施工安全保障措施和環(huán)境保護(hù)及水土保護(hù)措施等進(jìn)行設(shè)計(jì)。隧道主體采用新奧法進(jìn)行施工設(shè)計(jì)，初期支護(hù)采用錨噴支護(hù)，必要時(shí)加設(shè)輔助支護(hù)措施，襯砌型式采用復(fù)合式襯砌，并對各工序工作循環(huán)時(shí)間安排Ⅲ級圍巖開挖與支護(hù)工作循環(huán)時(shí)間計(jì)算、各工序工作循環(huán)時(shí)間安排；結(jié)合交通量和隧道長度，采用雙豎井配合射流風(fēng)機(jī)通風(fēng)，洞內(nèi)排水為反坡排水時(shí)，采用集水坑分段收集，逐級抽排的方式排出；錨噴支護(hù)的關(guān)鍵控制點(diǎn)是混凝土噴射工藝、噴射設(shè)備的選型、錨桿設(shè)備的選型、成孔工藝及支護(hù)時(shí)機(jī)的把握等；由于隧道圍巖地質(zhì)條件較差，施工中，仰拱要先行，要及早封閉，以利于襯砌結(jié)構(gòu)的整體受力。型鋼鋼架在洞外按設(shè)計(jì)加工成型，洞內(nèi)安裝在初噴砼之后進(jìn)行，與定位錨桿聯(lián)接。鋼架間設(shè)縱向連接筋，鋼架間用噴砼填平。鋼架拱腳安放在牢固的基礎(chǔ)上，架立時(shí)垂直隧道中線，當(dāng)鋼架和圍巖之間間隙過大時(shí)要用噴砼填補(bǔ)。系統(tǒng)錨桿在圍巖開挖和初噴混凝土后打設(shè)，鉆孔時(shí)確?？卓趲r面平整，使巖面與鉆孔方向垂直，局部隨機(jī)錨桿的孔軸方向與可能滑動(dòng)面的傾向方向相反，其與滑動(dòng)面的交角大于45°，間距1.0～1.5m，梅花形布置。錨桿注漿后，在砂漿凝固前，不敲擊、碰撞和拉拔。嚴(yán)格遵守《建筑施工場界噪聲限值》的有關(guān)規(guī)定，施工前，首先向環(huán)保主管部門申報(bào)并了解周圍單位居民工作生活情況，施工作業(yè)嚴(yán)格限定在規(guī)定的時(shí)間內(nèi)進(jìn)行。隧道施工預(yù)防坍方首先要做好地質(zhì)預(yù)報(bào)工作，掌握地質(zhì)情況，選擇安全、合理的施工方法和制定可靠的保證措施。在施工過程中要做到先排水、短開挖、弱爆破、強(qiáng)支護(hù)、快襯砌、勤檢查、勤量測，及時(shí)處理隱患。應(yīng)用先進(jìn)的低噪音設(shè)備、改造設(shè)備器械聲源及傳遞裝置的工藝，控制聲源振幅。塌方預(yù)防處理及應(yīng)急預(yù)案, 塌方的處理技術(shù)措施, 開工前組織全體干部職工進(jìn)行生態(tài)資源環(huán)境保護(hù)知識的學(xué)習(xí)，增強(qiáng)環(huán)保意識，保證環(huán)保工程質(zhì)量，采取有效措施，使施工過程對生態(tài)環(huán)境的損害降低到最低程度；文明施工、文物保護(hù)。
關(guān)鍵詞： 新奧法；復(fù)合式襯砌；錨噴支護(hù)；通風(fēng)；防排水；施工安全。

Yong tai to Pu tian XPFJ-10 bid
Section Tunnel Construction
Technology Design
ABSTRACT
This graduation design for pond to putian railway engineering yongtai to putian section XPFJ - 10 section of tunnel construction technology design. Design with new railway line to rush to yongtai putian section station project preliminary design modification (for bidding) design drawings. The construction unit organization scale before meeting and supplement books, answer books and other relevant content and spirit as the foundation, on the basis of the current railway tunnel construction technology standard, the tunnel construction organization overall layout and planning, construction preparation, overall construction plan, construction plan method and technology, engineering and quality assurance measures, construction safety measures and environmental protection and water and soil protection measures to carry on the design. The main tunnel new Austrian method for construction design, the primary support bolt-shotcrete support, when necessary, adding auxiliary support measures, lining type using composite lining, And of every working procedure work cycle time Ⅲ level surrounding rock excavation and support work cycle time calculation, the process working cycle time arrangement; Combined with traffic and tunnel length, with double shaft with jet fan ventilation, drainage hole for the slope drainage, the sump section collection, step by step to take a platoon way discharge; The key point is support by rockbolt and shotcrete technology, injection equipment selection, anchor equipment selection, pore forming process and supporting time grasp, etc.; Due to the tunnel surrounding rock with worse geological condition, the construction, the inverted arch to advance, to early closed for the whole lining structure stress. Steel frame in the hole according to the design process molding, hole installed in initial spray after concrete, and the position of the bolt connection. A longitudinal connection between steel bar, steel frame with spray between concrete fill and level up. Steel arch feet and laid a solid foundation, frame and vertical tunnel center line, when the steel frame and the gap between surrounding rock is too want to use spray concrete fill. System anchoring bolt in surrounding rock excavation and initial spray concrete after a dozen, drilling ensure orifice rockface level, make the rockface and drilling direction vertical, local random bolt hole shaft direction and the potential sliding surface in opposite directions, the tendency and the slip plane Angle 45 °, spacing 1.0 ~ 1.5 m, the plum flower form to decorate. Bolt grouting, in mortar before solidification, don't knock, collision and drawing. Strictly abide by the construction field noise limit "concerned regulation, before construction, first of all to the environmental protection departments to declare and understanding of the working and liv..