測(ce)量(liang)用(yong)VW-102E型(xing)全(quan)功(gong)能讀數儀，將測(ce)量(liang)線(xian)快速插(cha)頭插(cha)入(ru)讀數儀的(de)左邊插(cha)座，將測(ce)量(liang)線(xian)的(de)各色夾子對應連接滲(shen)壓(ya)計(ji)(ji)(ji)的(de)輸(shu)出電纜，黑、紅測(ce)頻率，白、綠測(ce)溫度。滲(shen)壓(ya)計(ji)(ji)(ji)內附有智能識(shi)別芯片，其內存貯有該(gai)滲(shen)壓(ya)計(ji)(ji)(ji)的(de)編(bian)號(hao)(hao)、標定系(xi)數K、溫度修正系(xi)數b等信(xin)息(xi)。讀數儀測(ce)量(liang)時會自(zi)動將識(shi)別信(xin)息(xi)讀出，順序存入(ru)讀數儀內，同步葛南云平臺，方便(bian)快速統計(ji)(ji)(ji)計(ji)(ji)(ji)算(suan)及(ji)查詢，使測(ce)量(liang)工(gong)(gong)作遠程(cheng)智能無紙(zhi)化操作，實現(xian)(xian)前方測(ce)量(liang)后方實時查看作圖制表(biao)。工(gong)(gong)程(cheng)現(xian)(xian)場多支(zhi)滲(shen)壓(ya)計(ji)(ji)(ji)電纜被意外挖斷，用(yong)讀數儀測(ce)量(liang)一遍(bian)，就可自(zi)動識(shi)別出每支(zhi)滲(shen)壓(ya)計(ji)(ji)(ji)所(suo)對應的(de)編(bian)號(hao)(hao)及(ji)身(shen)份信(xin)息(xi)。市面上主(zhu)要有哪些品牌和(he)型(xing)號(hao)(hao)的(de)滲(shen)壓(ya)計(ji)(ji)(ji)？北京(jing)孔(kong)隙水滲(shen)壓(ya)計(ji)(ji)(ji)工(gong)(gong)程(cheng)測(ce)量(liang)

為研究滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji)在滲(shen)流監測(ce)(ce)(ce)中的(de)(de)(de)精(jing)(jing)度,并(bing)分(fen)析(xi)產(chan)生(sheng)誤(wu)差的(de)(de)(de)原因,對(dui)某土(tu)石壩埋設(she)于(yu)測(ce)(ce)(ce)壓(ya)(ya)(ya)(ya)(ya)管中的(de)(de)(de)30余(yu)支滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji)進(jin)行了(le)(le)比(bi)(bi)測(ce)(ce)(ce).比(bi)(bi)測(ce)(ce)(ce)方法為:分(fen)別(bie)采用平(ping)尺(chi)水(shui)位計(ji)和(he)自動化采集(ji)裝置(zhi)同時(shi)進(jin)行人工(gong)直接測(ce)(ce)(ce)讀(du)和(he)機器(qi)自動測(ce)(ce)(ce)讀(du).結(jie)果表明,比(bi)(bi)測(ce)(ce)(ce)誤(wu)差一(yi)般在-0.5～0.3 m之(zhi)間,超過(guo)滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji)標稱(cheng)精(jing)(jing)度約10倍之(zhi)多(duo),且誤(wu)差分(fen)布呈隨機跳(tiao)動的(de)(de)(de)特征.為進(jin)一(yi)步分(fen)析(xi)誤(wu)差來源,對(dui)部(bu)分(fen)測(ce)(ce)(ce)壓(ya)(ya)(ya)(ya)(ya)管管口裝置(zhi)開孔后進(jin)行了(le)(le)比(bi)(bi)測(ce)(ce)(ce),并(bing)實施(shi)(shi)了(le)(le)密封容器(qi)內的(de)(de)(de)滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji)數據采集(ji)試驗(yan),結(jie)果證明,滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji)誤(wu)差主要來源于(yu)環(huan)境大氣(qi)壓(ya)(ya)(ya)(ya)(ya)及管內局部(bu)氣(qi)壓(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)變化.在此基礎上,提出了(le)(le)減小滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji)誤(wu)差的(de)(de)(de)技術(shu)措施(shi)(shi),包括(kuo)使用通氣(qi)型(xing)滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji),管口增(zeng)設(she)通氣(qi)孔,進(jin)壓(ya)(ya)(ya)(ya)(ya)改正(zheng)等(deng)。北京孔隙水(shui)滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji)工(gong)程測(ce)(ce)(ce)量滲(shen)壓(ya)(ya)(ya)(ya)(ya)計(ji)有(you)哪些安(an)裝方式？

滲壓(ya)計(ji)(ji)在已建(jian)結構(gou)體(ti)安裝埋(mai)(mai)(mai)設(she)(she)1.混(hun)凝(ning)土(tu)(tu)結構(gou)體(ti)的埋(mai)(mai)(mai)設(she)(she)已建(jian)工程(cheng)埋(mai)(mai)(mai)設(she)(she)滲壓(ya)計(ji)(ji)，應(ying)采用(yong)(yong)鉆(zhan)孔(kong)(kong)(kong)埋(mai)(mai)(mai)設(she)(she)法(fa)，鉆(zhan)孔(kong)(kong)(kong)孔(kong)(kong)(kong)徑￠80～100mm。鉆(zhan)孔(kong)(kong)(kong)孔(kong)(kong)(kong)深(shen)要比(bi)滲壓(ya)計(ji)(ji)設(she)(she)計(ji)(ji)埋(mai)(mai)(mai)設(she)(she)高程(cheng)深(shen)40cm以(yi)上，成(cheng)(cheng)孔(kong)(kong)(kong)后應(ying)在孔(kong)(kong)(kong)底(di)灌入粗砂(sha)(sha)，用(yong)(yong)透(tou)水(shui)(shui)(shui)土(tu)(tu)工布包(bao)裹住(zhu)滲壓(ya)力計(ji)(ji)放(fang)入孔(kong)(kong)(kong)中(zhong)透(tou)水(shui)(shui)(shui)段(duan)，周圍(wei)填滿中(zhong)細(xi)砂(sha)(sha)，透(tou)水(shui)(shui)(shui)段(duan)上層(ceng)用(yong)(yong)膨脹水(shui)(shui)(shui)泥封(feng)(feng)孔(kong)(kong)(kong)阻(zu)斷透(tou)水(shui)(shui)(shui)層(ceng)，再上層(ceng)水(shui)(shui)(shui)泥砂(sha)(sha)漿(jiang)封(feng)(feng)口。2.土(tu)(tu)石結構(gou)體(ti)的埋(mai)(mai)(mai)設(she)(she)已建(jian)工程(cheng)埋(mai)(mai)(mai)設(she)(she)滲壓(ya)計(ji)(ji)，應(ying)采用(yong)(yong)鉆(zhan)孔(kong)(kong)(kong)埋(mai)(mai)(mai)設(she)(she)法(fa)，鉆(zhan)孔(kong)(kong)(kong)孔(kong)(kong)(kong)徑，單孔(kong)(kong)(kong)可采用(yong)(yong)￠80～100mm的孔(kong)(kong)(kong)徑。鉆(zhan)孔(kong)(kong)(kong)孔(kong)(kong)(kong)深(shen)要比(bi)滲壓(ya)計(ji)(ji)設(she)(she)計(ji)(ji)埋(mai)(mai)(mai)設(she)(she)高程(cheng)深(shen)40cm以(yi)上，成(cheng)(cheng)孔(kong)(kong)(kong)后應(ying)在孔(kong)(kong)(kong)底(di)灌入粗砂(sha)(sha)，用(yong)(yong)透(tou)水(shui)(shui)(shui)布內放(fang)沙做成(cheng)(cheng)砂(sha)(sha)包(bao)裹住(zhu)滲壓(ya)力計(ji)(ji)放(fang)入孔(kong)(kong)(kong)中(zhong)，周圍(wei)填滿中(zhong)細(xi)砂(sha)(sha)，透(tou)水(shui)(shui)(shui)段(duan)上層(ceng)用(yong)(yong)膨潤(run)土(tu)(tu)封(feng)(feng)孔(kong)(kong)(kong)阻(zu)斷透(tou)水(shui)(shui)(shui)層(ceng)，再上層(ceng)原土(tu)(tu)料封(feng)(feng)口。

傳(chuan)統(tong)的(de)滲壓(ya)(ya)(ya)計安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)方式之一(如行業規范dl/t 5178-2016,p98或(huo)sl531-2012第(di)4章(zhang))是(shi)(shi)采用(yong)土工(gong)布和砂(sha)粒將滲壓(ya)(ya)(ya)計打包(bao)，安(an)(an)(an)放到(dao)設計部(bu)位。這(zhe)種技術方案的(de)特點(dian)(dian)是(shi)(shi)操作(zuo)簡單，但缺點(dian)(dian)就是(shi)(shi)砂(sha)包(bao)形狀不容(rong)易(yi)保持。這(zhe)一點(dian)(dian)在(zai)現實中(zhong)(zhong)多次(ci)得到(dao)證實，特別在(zai)破(po)碎(sui)巖體(ti)和沙/土層中(zhong)(zhong)的(de)鉆(zhan)(zhan)孔安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)中(zhong)(zhong)有(you)時(shi)會遇(yu)到(dao)塌孔時(shi)，這(zhe)種滲壓(ya)(ya)(ya)計砂(sha)包(bao)往往不能(neng)順利到(dao)達安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)位置，有(you)時(shi)還(huan)需要取回掃(sao)孔再重裝(zhuang)(zhuang)(zhuang)安(an)(an)(an)裝(zhuang)(zhuang)(zhuang)，甚(shen)(shen)至多次(ci)掃(sao)孔重裝(zhuang)(zhuang)(zhuang)，如此反復多次(ci)，滲壓(ya)(ya)(ya)計的(de)砂(sha)包(bao)就容(rong)易(yi)破(po)損或(huo)砂(sha)包(bao)因砂(sha)粒下墜到(dao)“梨形”，更(geng)有(you)甚(shen)(shen)者(zhe)會因鉆(zhan)(zhan)孔內(nei)水質混(hun)濁，會將滲壓(ya)(ya)(ya)計透水石堵(du)塞或(huo)將砂(sha)包(bao)糊住，造成儀器(qi)靈敏度下降或(huo)失(shi)靈。滲壓(ya)(ya)(ya)孔是(shi)(shi)在(zai)大壩在(zai)建(jian)時(shi)、還(huan)是(shi)(shi)建(jian)好(hao)以后鉆(zhan)(zhan)孔？

滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計埋(mai)(mai)(mai)(mai)設(she)注意(yi)事項(xiang)：1.滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計預(yu)飽(bao)和(he)：由于混凝土(tu)的(de)(de)滲(shen)(shen)(shen)(shen)透(tou)系數較小(xiao)，而(er)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)(ya)(ya)(ya)力又(you)是穿過(guo)(guo)透(tou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)板后(hou)作用在(zai)滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計的(de)(de)感應(ying)(ying)(ying)(ying)膜上，如(ru)果透(tou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)板與感應(ying)(ying)(ying)(ying)膜前(qian)的(de)(de)儲水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)腔沒有充滿水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)(含(han)有氣泡)，將(jiang)會造成(cheng)滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計測值(zhi)的(de)(de)嚴(yan)重滯后(hou)。所(suo)以埋(mai)(mai)(mai)(mai)設(she)安(an)(an)裝(zhuang)前(qian)必須將(jiang)透(tou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)板擰下放在(zai)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)中浸泡半小(xiao)時，透(tou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)板擰回前(qian)先將(jiang)感應(ying)(ying)(ying)(ying)膜前(qian)的(de)(de)儲水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)腔注滿水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)，透(tou)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)板擰回時滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計進水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)應(ying)(ying)(ying)(ying)朝(chao)上，以免腔內水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)流出。2.埋(mai)(mai)(mai)(mai)設(she)安(an)(an)裝(zhuang)條件：埋(mai)(mai)(mai)(mai)設(she)時應(ying)(ying)(ying)(ying)首先確保滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計進水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)的(de)(de)暢通，為防止泥漿(jiang)堵塞進水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)，應(ying)(ying)(ying)(ying)在(zai)進水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)處做(zuo)一個人(ren)工過(guo)(guo)濾層(ceng)(ceng)，過(guo)(guo)濾層(ceng)(ceng)由中砂(sha)、細砂(sha)分層(ceng)(ceng)組成(cheng)，過(guo)(guo)濾層(ceng)(ceng)的(de)(de)直徑應(ying)(ying)(ying)(ying)大于10Cm(或包一層(ceng)(ceng)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)工布)，埋(mai)(mai)(mai)(mai)設(she)前(qian)將(jiang)過(guo)(guo)濾層(ceng)(ceng)在(zai)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)中充分飽(bao)和(he)。3.滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計的(de)(de)電(dian)纜(lan)敷設(she)：滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計(已接長電(dian)纜(lan))的(de)(de)進水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)口(kou)應(ying)(ying)(ying)(ying)朝(chao)向水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)壓(ya)(ya)(ya)(ya)(ya)力方向，在(zai)引出電(dian)纜(lan)的(de)(de)沿線設(she)止水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)板，防止高壓(ya)(ya)(ya)(ya)(ya)水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)沿電(dian)纜(lan)滲(shen)(shen)(shen)(shen)透(tou)。電(dian)纜(lan)應(ying)(ying)(ying)(ying)按設(she)計走向埋(mai)(mai)(mai)(mai)設(she)固定。滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計怎么接入數據采集儀(yi)?江(jiang)西(xi)孔(kong)隙水(shui)(shui)(shui)(shui)(shui)(shui)(shui)(shui)滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)(ya)(ya)計推(tui)薦(jian)廠家

滲壓計不(bu)同量(liang)程的(de)誤差范圍有多大？北京孔隙水滲壓計工(gong)程測量(liang)

滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)計是大壩滲(shen)(shen)(shen)(shen)流監(jian)測(ce)(ce)(ce)的(de)(de)(de)(de)(de)主要(yao)設(she)備之一.在長期工(gong)程實(shi)(shi)踐中(zhong),滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)計的(de)(de)(de)(de)(de)埋(mai)設(she)方法(fa)已(yi)經(jing)比較(jiao)成熟.但是,滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)計埋(mai)設(she)過(guo)程中(zhong)的(de)(de)(de)(de)(de)高程修(xiu)正,傳(chuan)感(gan)器及電纜固定方法(fa),初始值的(de)(de)(de)(de)(de)取值,接線(xian)以及配套材料的(de)(de)(de)(de)(de)使(shi)用(yong)等問(wen)題(ti)往(wang)往(wang)被忽視,造成埋(mai)設(she)成功率低下.以振(zhen)弦式(shi)(shi)滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)計為例(li),通過(guo)分析以上問(wen)題(ti)的(de)(de)(de)(de)(de)成因(yin),提出了(le)(le)(le)相應(ying)的(de)(de)(de)(de)(de)解(jie)決(jue)辦法(fa)。振(zhen)弦式(shi)(shi)滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)計是土建(jian)測(ce)(ce)(ce)應(ying)力較(jiao)為先進(jin)的(de)(de)(de)(de)(de)高精度(du)傳(chuan)感(gan)器之一.設(she)計和實(shi)(shi)現了(le)(le)(le)一種能夠實(shi)(shi)時監(jian)測(ce)(ce)(ce)的(de)(de)(de)(de)(de)滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)測(ce)(ce)(ce)量模(mo)塊,較(jiao)好地解(jie)決(jue)了(le)(le)(le)該傳(chuan)感(gan)器測(ce)(ce)(ce)量時信號(hao)微弱,距(ju)離遠,干擾大,校(xiao)準要(yao)求高等難點(dian);同時設(she)計了(le)(le)(le)一種實(shi)(shi)用(yong)高精度(du)熱敏電阻器測(ce)(ce)(ce)量模(mo)塊,實(shi)(shi)現了(le)(le)(le)對振(zhen)弦式(shi)(shi)滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)計的(de)(de)(de)(de)(de)校(xiao)正.該模(mo)塊與同類的(de)(de)(de)(de)(de)監(jian)測(ce)(ce)(ce)儀(yi)器相比,具(ju)有結(jie)構(gou)簡單(dan),精度(du)高,擴展性好,抗干擾性強等優(you)點(dian)。北(bei)京(jing)孔隙水滲(shen)(shen)(shen)(shen)壓(ya)(ya)(ya)計工(gong)程測(ce)(ce)(ce)量

本(ben)文來自沈陽喜納多采暖工程有限公司：//zjlong.cn/Article/97b399570.html