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class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2020/1/637140040936092788/6371400409360927886004044.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="os7sz8z" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>云南省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>昆明套筒式聲測(cè)管生產(chǎn)廠家13888426708</p><p><span>***更新：</span>2020-06-27 16:23:06</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="vkjq2r3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南貿(mào)軒商貿(mào)有限公司</a></p><p><span>聯(lián)系人：</span>謝經(jīng)理</p><p><span>郵箱: </span>1339843057@qq.com</p><p><span>電話: </span>13888426708</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://www.maoxuan666.com</p><p><span>手機(jī): </span>138-88426708</p><p><span>地址: </span>云南省昆明經(jīng)開(kāi)區(qū)宏錫路4-1-2號(hào)鐵公雞物流園二號(hào)寫(xiě)字樓408號(hào)</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="sg3x3ta" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ke4dkhe" class="box"><p><p> 1超聲波檢測(cè)原理常用的基樁動(dòng)測(cè)方法包括低應(yīng)變反射波法、高應(yīng)變動(dòng)測(cè)法、超聲波法、動(dòng)測(cè)法等。超聲波法檢測(cè)基樁由于檢測(cè)精度高、不受樁長(zhǎng)、樁徑條件限制、測(cè)試無(wú)盲區(qū)等優(yōu)點(diǎn)，昆明套筒式聲測(cè)管生產(chǎn)廠家13888426708，在混凝土基樁檢測(cè)中應(yīng)用越來(lái)越普及。其檢測(cè)原理是對(duì)計(jì)劃采用超聲波法檢測(cè)樁身質(zhì)量的基樁，施工時(shí)在樁身中埋入聲測(cè)管，檢測(cè)時(shí)發(fā)射換能器和接收換能器分別置于兩根管道中，由聲測(cè)管底部開(kāi)始，發(fā)射探頭在某一個(gè)聲測(cè)管中邊上升邊發(fā)射高頻信號(hào)，該高頻信號(hào)穿過(guò)混凝土被另一個(gè)聲測(cè)管中同步移動(dòng)的接收換能器所探測(cè)。隨著探頭沿整個(gè)樁長(zhǎng)提升，依次測(cè)取各測(cè)點(diǎn)超聲脈沖穿過(guò)兩管道之間的混凝土，通過(guò)實(shí)測(cè)超聲波在混凝土介質(zhì)中傳播的聲時(shí)、波幅和頻率等參數(shù)的相對(duì)變化來(lái)檢測(cè)聲測(cè)管之間混凝土的缺點(diǎn)位置及影響程度，判定樁身完整性類(lèi)別?；炷潦怯啥喾N材料組成的多相非勻質(zhì)體。對(duì)于正常的混凝土，聲波在其中傳播的速度是有一定范圍的，當(dāng)傳播路徑遇到混凝土有缺點(diǎn)時(shí)，昆明套筒式聲測(cè)管生產(chǎn)廠家13888426708，如斷裂、裂縫、夾泥和密實(shí)度差等，聲波要繞過(guò)缺點(diǎn)或在傳播速度較慢的介質(zhì)中通過(guò)，聲波將發(fā)生衰減，造成傳播時(shí)間延長(zhǎng)，使．聲時(shí)增大，計(jì)算聲速降低，昆明套筒式聲測(cè)管生產(chǎn)廠家13888426708，波幅減小，波形畸變，利用超聲波在混凝土中傳播的這些聲學(xué)參數(shù)的變化，來(lái)分析判斷樁身混凝土質(zhì)量。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明套筒式聲測(cè)管生產(chǎn)廠家13888426708" src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2020/1/637140040936092788/6371400409360927886004044.jpg"></div><p style="text-indent:25px">要延伸高效聲測(cè)管的運(yùn)用壽命，根本的辦法是將塵埃擋在預(yù)聲測(cè)管。替換預(yù)聲測(cè)管一般無(wú)須停產(chǎn)，無(wú)須調(diào)試，所以有經(jīng)歷的業(yè)主會(huì)把注意力和金錢(qián)花在預(yù)聲測(cè)管廠家及維護(hù)級(jí)中級(jí)聲測(cè)管廠家上。關(guān)于10K級(jí)和100K級(jí)潔凈廠房，預(yù)過(guò)濾選用G4、中級(jí)可選用F8聲測(cè)管廠家(比色法95%)，這樣，結(jié)尾高效聲測(cè)管廠家的運(yùn)用壽命一般可達(dá)5年。在國(guó)外項(xiàng)目中和國(guó)內(nèi)新建項(xiàng)目中，F(xiàn)8聲測(cè)管廠家對(duì)錯(cuò)均勻流聲測(cè)管廠家常見(jiàn)的預(yù)聲測(cè)管廠家。有些場(chǎng)合，對(duì)高效聲測(cè)管廠家運(yùn)用壽命的規(guī)定不是出于對(duì)阻力的考慮，而是其它因素。若廠房中有氫氟酸，而車(chē)間空調(diào)又不是全新風(fēng)體系，高效聲測(cè)管廠家中的玻璃纖維濾紙會(huì)受到回風(fēng)的腐蝕，為了安全，有必要定時(shí)替換高效聲測(cè)管廠家。有些大的制藥廠，每年雨季往后要替換高效聲測(cè)管廠家，為的是避免聲測(cè)管廠家上任何或許的霉菌污染。有些生物實(shí)驗(yàn)室和與危險(xiǎn)品打交道的實(shí)驗(yàn)室，在開(kāi)展一項(xiàng)新的重要課題前，為了可靠會(huì)要求運(yùn)用新的高效聲測(cè)管廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明套筒式聲測(cè)管生產(chǎn)廠家13888426708" src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2020/1/637140040995053732/6371400409950537321299908.jpg"></div><p style="text-indent:25px">5．5 注水每埋設(shè)一節(jié)，均應(yīng)向聲測(cè)管內(nèi)加注清水作為檢測(cè)用的藕合劑。水不能直接用江水，尤其汛期江水含泥量較高，要經(jīng)過(guò)凈化處理后才能用來(lái)灌聲測(cè)管，來(lái)達(dá)到預(yù)防聲測(cè)管底部堵塞的目的。在灌注基樁水下混凝土之前，應(yīng)檢查聲測(cè)管內(nèi)的水位，如管內(nèi)的水不滿，則應(yīng)補(bǔ)充灌滿。5．6 試探樁基混凝土齡期在14 d以后才能進(jìn)行檢測(cè)。檢測(cè)前應(yīng)將樁頭鑿至設(shè)計(jì)標(biāo)高，并用測(cè)繩拴一根 32mm長(zhǎng)約20 cm的鋼筋，做成吊錘對(duì)聲測(cè)管進(jìn)行試探是否暢順，并向管中注滿清水。6 聲測(cè)管堵塞的應(yīng)急預(yù)案在基樁檢測(cè)過(guò)程中發(fā)現(xiàn)，有些些施工單位對(duì)基樁聲測(cè)管保護(hù)的重視程度不足，經(jīng)常出聲測(cè)管被堵現(xiàn)象，導(dǎo)致檢測(cè)部門(mén)無(wú)法按既定的檢測(cè)方案開(kāi)展檢測(cè)工作，工程不能順利進(jìn)行。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/412773.html</p></div></div></div></div></div><div id="fuo3kwj" class="page-right twoColRt"><div id="scrd8kr" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gv37s8x" class="recomPic likePro"><a 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