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clearfix"><div id="u2zuw9g" class="twoCol"><div id="cwjy7ji" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_yjkc/">冶金礦產(chǎn)</a>?<a href="http://www.cdcfah.com/cp/second-yjkc_gangcai/">鋼材</a>?<a href="http://www.cdcfah.com/cp/third-gangcai_xingcai/">型材</a>?昆明聲測管創(chuàng)新服務(wù) 云南貿(mào)軒商貿(mào)供應(yīng)</p><div id="a8ovf4i" class="leftbox clearfix"><h1>昆明聲測管創(chuàng)新服務(wù) 云南貿(mào)軒商貿(mào)供應(yīng)</h1><div id="zyv8k8h" class="proBig"><div id="ixeyk9u" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/23/2/636915817867487407_ynmaoxuan_5459100.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="j8yp8fh" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/4/23/2/636915817867487407_ynmaoxuan_5459100.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lkmo8ja" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>昆明聲測管,聲測管</p><p><span>***更新：</span>2020-08-05 20:24:54</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="zyv7luw" 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: </span>138-88426708</p><p><span>地址: </span>云南省昆明經(jīng)開區(qū)宏錫路4-1-2號鐵公雞物流園二號寫字樓408號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="3zbicab" class="page-proshow02"><p class="title">詳細說明</p><div id="lahjlfr" class="box"><p><p> 1超聲波檢測原理常用的基樁動測方法包括低應(yīng)變反射波法、高應(yīng)變動測法、超聲波法、動測法等。超聲波法檢測基樁由于檢測精度高、不受樁長、樁徑條件限制、測試無盲區(qū)等優(yōu)點，昆明聲測管，在混凝土基樁檢測中應(yīng)用越來越普及。其檢測原理是對計劃采用超聲波法檢測樁身質(zhì)量的基樁，施工時在樁身中埋入聲測管，檢測時發(fā)射換能器和接收換能器分別置于兩根管道中，由聲測管底部開始，發(fā)射探頭在某一個聲測管中邊上升邊發(fā)射高頻信號，該高頻信號穿過混凝土被另一個聲測管中同步移動的接收換能器所探測。隨著探頭沿整個樁長提升，依次測取各測點超聲脈沖穿過兩管道之間的混凝土，通過實測超聲波在混凝土介質(zhì)中傳播的聲時、波幅和頻率等參數(shù)的相對變化來檢測聲測管之間混凝土的缺點位置及影響程度，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，當傳播路徑遇到混凝土有缺點時，如斷裂、裂縫、夾泥和密實度差等，聲波要繞過缺點或在傳播速度較慢的介質(zhì)中通過，聲波將發(fā)生衰減，造成傳播時間延長，昆明聲測管，昆明聲測管，使．聲時增大，計算聲速降低，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參數(shù)的變化，來分析判斷樁身混凝土質(zhì)量。螺旋式聲測管源頭好貨，云南貿(mào)軒商貿(mào)有限公司。昆明聲測管</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明聲測管,聲測管" src="http://tyunfile.71360.com/UpLoadFile/2019/4/23/2/636915817867487407_ynmaoxuan_5459100.jpg"></div><p style="text-indent:25px">聲測管可直接固定在鋼筋籠內(nèi)側(cè)上：固定方式可采用焊接或綁扎，管子之間應(yīng)基本上保持平行-若檢測結(jié)果需對各測點混凝土的強度做出評估，則不平行度應(yīng)控制在1‰以下。鋼筋籠放入樁孔時應(yīng)防止扭曲。管子一般隨鋼筋籠分段安裝，每段之間的接頭可采用反螺紋套筒接口或套管焊接方案，如圖8所示：若采用波紋管則可利用大一號的波紋管套接，并在套接管的兩端用膠布纏繞密封。無論那種接頭方案都必須保證在較高的靜水壓力下不漏漿，接口內(nèi)壁應(yīng)保持平整，不應(yīng)有焊渣、毛刺等凸出物，以免妨礙探頭的自如移動，聲測管的底部也應(yīng)密封，安裝完畢后應(yīng)將上口用木塞堵住，以免澆灌混凝土時落入異物，致使孔道堵塞。昆明聲測管多少錢云南聲測管規(guī)格，云南貿(mào)軒商貿(mào)有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明聲測管,聲測管" src="http://tyunfile.71360.com/UpLoadFile/2019/4/23/2/636915818196613463_ynmaoxuan_5970961.jpg"></div><p style="text-indent:25px">聲測管可直接固定在鋼筋籠內(nèi)側(cè)上：固定方式可采用焊接或綁扎，管子之間應(yīng)基本上保持平行-若檢測結(jié)果需對各測點混凝土的強度做出評估，則不平行度應(yīng)控制在1‰以下。鋼筋籠放入樁孔時應(yīng)防止扭曲。[1]管子一般隨鋼筋籠分段安裝，每段之間的接頭可采用反螺紋套筒接口或套管焊接方案，若采用波紋管則可利用大一號的波紋管套接，并在套接管的兩端用膠布纏繞密封。無論那種接頭方案都必須保證在較高的靜水壓力下不漏漿，接口內(nèi)壁應(yīng)保持平整，不應(yīng)有焊渣、毛刺等凸出物，以免妨礙探頭的自如移動，聲測管的底部也應(yīng)密封，安裝完畢后應(yīng)將上口用木塞堵住，以免澆灌混凝土時落入異物，致使孔道堵塞。</p><p> (3) 聲測管鑲石棉墊：由于現(xiàn)場地勢等原因，有時相鄰兩法蘭之間間距較小，這時用手錘、鑿子把兩法蘭之間鑿開大約1cm的縫隙，用螺絲刀把石棉墊鑲在兩法蘭之間，有時管子頂部兩法蘭間距較大，石棉墊鑲嵌困難，用綁絲把石棉墊綁在螺栓上固定，然后工人開始對稱鎖緊螺絲。直至從外觀看兩法蘭之間只有2—3mm的縫隙即可。 </p> <p> (4) 聲測管管壁內(nèi)外防滲處理：管壁內(nèi)外涂乳化瀝青或熱瀝青兩道，從外觀看管壁內(nèi)外均勻的涂成了黑管即可。一般瀝青涂層的厚度要達到1mm。 </p> <p> (5) 聲測管用千斤頂校正整道涵管，使其中心在所規(guī)定的中心線上。聲測管哪個廠家好，云南貿(mào)軒商貿(mào)有限公司。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明聲測管,聲測管" src="http://tyunfile.71360.com/UpLoadFile/ynmaoxuan/2020/1/637140040721370124/6371400407213701245405719.jpg"></div>常見問題： <p> (1)聲測管接頭或管口、管底密封不嚴，在施工過程中漏進泥漿或水泥漿造成堵管。(2)聲測管在安裝、灌注過程中因鋼筋扭曲或碰撞使聲測管接頭錯位、變形或管壁變形。出現(xiàn)這種情況主要原因是選用過薄壁的聲測管。(3)灰?guī)r地區(qū)，沖孔成孔不好，鋼筋籠下沉困難時使用非常規(guī)手段使聲測管變形堵塞。(4)破樁頭時由于工人的不注意掉進小混凝土塊引起的堵管。批發(fā)聲測管廠家，云南貿(mào)軒商貿(mào)有限公司。昆明聲測管價格</p> 解決方法：聲測管變形堵管給檢測工作帶來了很大的困難，甚至無法進行檢測。為此基樁澆灌后檢測前發(fā)現(xiàn)聲測管堵塞時，應(yīng)采取有效措施進行通管確保超聲波檢測的順利進行，通管一般有以下三種方法：用粗長鋼筋捅通聲測管；用高壓水沖洗清管；采用鉆機配小鉆頭進行掃孔。<p style="text-indent:25px">昆明聲測管生產(chǎn)廠家直銷，云南貿(mào)軒商貿(mào)有限公司。昆明聲測管</p><p style="text-indent:25px">聲測管材質(zhì)的選擇，以透聲率較大、便于安裝及費用較低為原則。聲脈沖從發(fā)射換能器發(fā)出，通過耦合水到達水和聲測管管壁的界面，再通過管壁到達聲測管管壁與混凝土的界面，穿過混凝土后又需穿過另一聲測管的兩個界面而到達接收換能器。因此，聲測管形成4個界面，每個界面的聲能透過系數(shù)可按下式計算：式中：——某界面的聲能透過系數(shù)；——界面兩側(cè)介質(zhì)的聲阻抗率發(fā)射和接收換能器之間4個界面的總透聲系數(shù)為聲阻抗率較低，用做聲測管具有較大的透聲率，通?？捎糜谳^小的灌注樁，在大型灌注樁中使用時應(yīng)慎重，因為大直徑樁需灌注大量混凝土，水泥的水化熱不易發(fā)散：鑒于塑料的熱膨脹系數(shù)與混凝土的相差懸殊，混凝土凝固后塑料管因溫度下降而產(chǎn)生徑向和縱向收縮，有可能使之與混凝土局部脫開而造成空氣或水的夾縫，在聲通路上又增加了更多反射強烈的界面，容易造成誤判。聲測管的直徑，通常比徑向換能器的直徑大l0mm即可，常用規(guī)格是內(nèi)徑50-60mm。管子的壁厚對透聲率的影響很小，所以，原則上對管壁厚度不作限制，但從節(jié)省用鋼量的角度而言，管壁只要能承受新澆混凝土的側(cè)壓力，則越薄越省。昆明聲測管</p><p style="text-indent:25px">云南貿(mào)軒商貿(mào)有限公司致力于冶金礦產(chǎn)，以科技創(chuàng)新實現(xiàn)***管理的追求。貿(mào)軒鋼材深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的[ "鍍鋅管", "工字鋼", "槽鋼", "角鋼" ]。公司擁有多年的行業(yè)經(jīng)驗，每年以銷售收入達到2000-3000萬元，如果您想了解更多產(chǎn)品信息，請通過頁面上的電話聯(lián)系我們。貿(mào)軒鋼材始終關(guān)注冶金礦產(chǎn)行業(yè)。海納百川，有容乃大，國內(nèi)外同行的智慧都是促使我們前行的力量。</p></p><br /><p>文章來源地址: 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