江西聲測(cè)管廠家全國(guó)發(fā)貨——15203170806劉賽北
江西聲測(cè)管+江西聲測(cè)管廠家+江西聲測(cè)管現(xiàn)貨
江西聲測(cè)管現(xiàn)貨的預(yù)埋及測(cè)量
Embedded sound tube:
(1) diameter 0.6 0.8 m should be embedding double tube; Diameter 0.8 2.0 m should be buried three root canal; Diameter 2.0 m above four root canal should be buried, according to the specific situation, chifeng bridge pile foundation can be buried three root canal.
(2) the acoustic detection tube appropriate USES steel pipe, plastic pipe, or steel corrugated pipe, the inner diameter should be 50 ~ 60 mm. Detection of pipe joint should be smooth transition, nozzle should be 100 mm or more above the pile top, and the test tube mouth height should be consistent, the lower end of the pipe should be closed, shall be affixed to the top, the tube can not have a foreign body, the play shall not be damaged.
(3) the test tube can be welded or tied reinforcement on the inside, between the test tube should be parallel to each other.
Acoustic detecting tube site inspection
(1) the testing before the determination of acoustic monitor is the transmission and reception system delay time t. The sound and calculate the revised.
(2) the transmitting and receiving probe measurement should be in the same level or maintaining a constant altitude difference synchronization lifting.
(3) the measurement point to 40 cm, when found abnormal encryption to 20 cm.
(4) select the appropriate voltage and amplifier gain, and remains unchanged during the process of test again.
(5) the time history curve of real-time display and record the received signal.
(6) will be more acoustic detection tube for two root for all combinations, a test profile is section for more complete detection respectively.
(7) after completion of each group of test tube test, the test point should be repeated random parking 10%, relative standard deviation shall not be more than 5% when the sound; Amplitude relative standard deviation shall not be more than 10%.
預(yù)埋 江西聲測(cè)管現(xiàn)貨www.smsnger.com :
(1)樁徑0.6-0.8m應(yīng)埋設(shè)雙管;樁徑0.8-2.0m應(yīng)埋設(shè)三根管;樁徑2.0m以上應(yīng)埋設(shè)四根管,根據(jù)赤峰橋具體情況,樁基可埋設(shè)三根管。
(2)聲波檢測(cè)管宜采用鋼管、塑料管或鋼質(zhì)波紋管,其內(nèi)徑宜為50~60mm。檢測(cè)管連接處應(yīng)光滑過渡,管口應(yīng)高出樁頂100mm以上,且各檢測(cè)管管口高度應(yīng)一致,管的下端應(yīng)封閉,上端應(yīng)加蓋,管內(nèi)不得有異物,管身不得有破損。
(3)檢測(cè)管可焊接或捆扎在鋼筋的內(nèi)側(cè),檢測(cè)管之間應(yīng)互相平行。
江西聲測(cè)管現(xiàn)貨的現(xiàn)場(chǎng)檢測(cè)
(1)現(xiàn)場(chǎng)檢測(cè)前測(cè)定聲波監(jiān)測(cè)儀發(fā)射至接受系統(tǒng)的延遲時(shí)間t。并計(jì)算聲時(shí)修正值。
(2)測(cè)量時(shí)發(fā)射與接收探頭應(yīng)以相同標(biāo)高或保持固定高差同步升降。
(3)測(cè)量點(diǎn)距為40cm,當(dāng)發(fā)現(xiàn)異常時(shí)再加密到20cm.
(4 )選擇適當(dāng)?shù)陌l(fā)射電壓和放大器增益,并再測(cè)試過程中保持不變。
(5)實(shí)時(shí)顯示和記錄接收信號(hào)的時(shí)程曲線。
(6)將多根 江西聲測(cè)管現(xiàn)貨www.tyfpipe.com 以兩根為一個(gè)檢測(cè)剖面進(jìn)行全組合,分別對(duì)多有剖面完成檢測(cè)。
(7)每組檢測(cè)管測(cè)試完成后,測(cè)試點(diǎn)應(yīng)隨機(jī)重復(fù)抽測(cè)10%,其聲時(shí)相對(duì)標(biāo)準(zhǔn)差不應(yīng)大于5%;波幅相對(duì)標(biāo)準(zhǔn)差不應(yīng)大于10%。