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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7czl3da" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2020/1/637140041064479732/6371400410644797327189352.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="jykmelx" 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>昆明螺旋式聲測(cè)管廠家批發(fā)</p><p><span>***更新：</span>2020-06-17 21:19:21</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="wlskrda" 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="ynu87cp" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="gk8krdk" 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，昆明螺旋式聲測(cè)管廠家批發(fā)、超聲波法、動(dòng)測(cè)法等，昆明螺旋式聲測(cè)管廠家批發(fā)。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)，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)，如斷裂、裂縫、夾泥和密實(shí)度差等，昆明螺旋式聲測(cè)管廠家批發(fā)，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，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="昆明螺旋式聲測(cè)管廠家批發(fā)" src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2020/1/637140041064479732/6371400410644797327189352.jpg"></div><p style="text-indent:25px">聲測(cè)管(Sonic Logging Pipe)是現(xiàn)不可少的聲波檢測(cè)管，利用聲測(cè)管可以檢測(cè)出一根樁的質(zhì)量好壞，聲測(cè)管是灌注樁進(jìn)行超聲檢測(cè)法時(shí)探頭進(jìn)入樁身內(nèi)部的通道。它是灌注樁超聲檢測(cè)系統(tǒng)的重要組成部分，它在樁內(nèi)的預(yù)埋方式及其在樁的橫截面上的布置形式，將直接影響檢測(cè)結(jié)果。因此，需檢測(cè)的樁應(yīng)在設(shè)計(jì)時(shí)將聲測(cè)管的布置和埋置方式標(biāo)入圖紙，在施工時(shí)應(yīng)嚴(yán)格控制埋置的質(zhì)量，以確保檢測(cè)工作順利進(jìn)行。云南貿(mào)軒商貿(mào)有限公司提供大量質(zhì)量聲測(cè)管，品牌多樣，規(guī)格齊全，歡迎選購(gòu)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明螺旋式聲測(cè)管廠家批發(fā)" src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2020/1/637140040781101390/6371400407811013904437521.jpg"></div><p style="text-indent:25px">堵管處理方法：1、對(duì)于既定的檢測(cè)方案原則上不得更改。2、“通管”：當(dāng)聲測(cè)管堵塞時(shí)，施工單位應(yīng)采取有效措施進(jìn)行“通管”，可采用下述3種方法：①用粗長(zhǎng)鋼筋捅通測(cè)管；②用高壓水沖洗清管；③采用鉆機(jī)配小鉆頭進(jìn)行掃孔。3、當(dāng)無(wú)法“通管”時(shí)，按以下原則處理：①、當(dāng)為某橋的一根樁時(shí)，必須進(jìn)行抽芯檢測(cè)。②、當(dāng)為某橋的非一根樁時(shí)，施工單位按附表1的格式填寫《變更檢測(cè)方法申請(qǐng)表》，并經(jīng)監(jiān)理、業(yè)主代表和監(jiān)督負(fù)責(zé)人簽名同意后，予以實(shí)施。③、若某橋多次出現(xiàn)堵管問(wèn)題，須適時(shí)進(jìn)行抽芯檢測(cè)。4、增加的檢測(cè)費(fèi)用由施工單位承擔(dān)。 5、監(jiān)理須要求施工單位在申報(bào)檢測(cè)前對(duì)聲測(cè)管進(jìn)行檢查；當(dāng)需更改檢測(cè)方案時(shí)，提前完善相關(guān)手續(xù)，避免因聲測(cè)管檢測(cè)問(wèn)題影響施工的順利推進(jìn)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/293665.html</p></div></div></div></div></div><div id="rg38xdp" class="page-right twoColRt"><div id="2ri8t3u" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wgnfh33" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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