一、基坑監測系統解決方案監測背景

基(ji)(ji)坑(keng)監(jian)(jian)(jian)測系統解決(jue)方(fang)案(an)又稱基(ji)(ji)坑(keng)施(shi)(shi)工(gong)(gong)(gong)(gong)監(jian)(jian)(jian)測方(fang)案(an)，基(ji)(ji)坑(keng)監(jian)(jian)(jian)測系統解決(jue)方(fang)案(an)用于(yu)基(ji)(ji)坑(keng)變形監(jian)(jian)(jian)測，監(jian)(jian)(jian)測主要項目有全天候監(jian)(jian)(jian)測地(di)下(xia)(xia)水位、沉降、支撐軸力、立柱內力、深層土(tu)(tu)體(ti)(ti)位移、土(tu)(tu)壓(ya)力等(deng)。城市(shi)基(ji)(ji)坑(keng)開挖具(ju)有施(shi)(shi)工(gong)(gong)(gong)(gong)風險高(gao)、施(shi)(shi)工(gong)(gong)(gong)(gong)難度(du)大等(deng)特點。目前深圳、廣州、東莞(guan)等(deng)地(di)基(ji)(ji)坑(keng)施(shi)(shi)工(gong)(gong)(gong)(gong)的開挖越來(lai)越深，從最初的四到(dao)八(ba)米發(fa)展到(dao)目前最深已(yi)達(da)二十多(duo)米。由于(yu)地(di)下(xia)(xia)土(tu)(tu)體(ti)(ti)性質(zhi)、荷載(zai)條件(jian)、施(shi)(shi)工(gong)(gong)(gong)(gong)環(huan)(huan)境的復雜性，單根(gen)據地(di)質(zhi)勘察資(zi)料和(he)室內土(tu)(tu)工(gong)(gong)(gong)(gong)試驗參數來(lai)確定設(she)計和(he)施(shi)(shi)工(gong)(gong)(gong)(gong)方(fang)案(an)，往(wang)往(wang)含有許多(duo)不確定因素，對(dui)在施(shi)(shi)工(gong)(gong)(gong)(gong)過程中引(yin)發(fa)的土(tu)(tu)體(ti)(ti)性狀、環(huan)(huan)境、鄰近建(jian)筑物(wu)、地(di)下(xia)(xia)設(she)施(shi)(shi)變化的監(jian)(jian)(jian)測已(yi)成了工(gong)(gong)(gong)(gong)程建(jian)設(she)必不可少的重(zhong)要環(huan)(huan)節，同(tong)時也(ye)是(shi)(shi)指導正(zheng)確施(shi)(shi)工(gong)(gong)(gong)(gong)的眼睛，是(shi)(shi)避免事(shi)故發(fa)生(sheng)的必要措施(shi)(shi)，是(shi)(shi)一種信息技術。當前，基(ji)(ji)坑(keng)監(jian)(jian)(jian)測與工(gong)(gong)(gong)(gong)程的設(she)計、施(shi)(shi)工(gong)(gong)(gong)(gong)同(tong)被列(lie)為深基(ji)(ji)坑(keng)工(gong)(gong)(gong)(gong)程質(zhi)量保證(zheng)的三大基(ji)(ji)本要素。

二、基(ji)坑監(jian)測系(xi)統解決方案系(xi)統概述(shu)

我司作為(wei)中國結(jie)構(gou)(gou)安全(quan)監(jian)(jian)(jian)測行(xing)業先行(xing)者(zhe)，率先將結(jie)構(gou)(gou)健(jian)康監(jian)(jian)(jian)測與(yu)物(wu)聯網結(jie)構(gou)(gou)體系、云(yun)計算、局域(yu)網/通訊網等多網無(wu)縫(feng)連接等技術(shu)結(jie)合(he)，建立一套智能基(ji)坑在線(xian)監(jian)(jian)(jian)測系統，為(wei)基(ji)坑施(shi)工現場進行(xing)實時(shi)監(jian)(jian)(jian)測。基(ji)于云(yun)計算服務中心的監(jian)(jian)(jian)測系統可容納上(shang)萬(wan)個橋梁、隧道(dao)、邊坡(po)等結(jie)構(gou)(gou)物(wu)的監(jian)(jian)(jian)測數據(ju)，形成(cheng)區域(yu)性結(jie)構(gou)(gou)健(jian)康監(jian)(jian)(jian)測平臺(tai)，實現區域(yu)內的所有結(jie)構(gou)(gou)統一監(jian)(jian)(jian)控(kong)管理。

三(san)、基坑(keng)監測系統解決方案主要監測內容

1.建筑基坑：圍(wei)護(hu)樁（墻(qiang)）頂部沉(chen)降(jiang)及水平位(wei)(wei)移、圍(wei)護(hu)樁（墻(qiang)）深層水平位(wei)(wei)移、圍(wei)護(hu)樁（墻(qiang)）內力、坑外土體深層水平位(wei)(wei)移、錨桿軸力、地(di)下水位(wei)(wei)、支撐軸力、坑底隆起(qi)

2.周(zhou)邊風險源(yuan)：地表沉降(jiang)、管(guan)線沉降(jiang)、建(jian)筑物傾(qing)斜、建(jian)筑物不均勻(yun)沉降(jiang)、建(jian)筑物裂縫(feng)、橋(qiao)墩(dun)傾(qing)斜、橋(qiao)墩(dun)不均勻(yun)沉降(jiang)

四、基坑(keng)監測系統解決方(fang)案監測項目(mu)一覽表

五(wu)、基坑監測(ce)系(xi)統解決方案監測(ce)依據(ju)

《城市軌道交通工程施工監測(ce)技術規(gui)范DG/TJ 08-2224-2017》

《城市軌道(dao)交通工(gong)程監(jian)測(ce)技術(shu)規范GB50911-2013》

《建筑基坑工(gong)程監測技(ji)術規范GB50497-2009》

《建筑(zhu)基坑工程監測技術標準(zhun)GB 50497-2019》

六(liu)、基坑監測系統解決方案(an)實現功能

1.24小時(shi)(shi)實(shi)時(shi)(shi)監測：通過對支護(hu)(hu)結構、地表沉降、圍護(hu)(hu)樁(zhuang)傾斜(xie)等實(shi)時(shi)(shi)在線監測，實(shi)時(shi)(shi)掌(zhang)握建筑(zhu)基坑的結構變化。

2.報表推(tui)送(song)：監測(ce)(ce)結果(guo)實(shi)時顯示(shi)發(fa)布，定期將監測(ce)(ce)報表推(tui)送(song)給用戶。

3.多重分級預警：建立三級報(bao)警機制，當(dang)檢測數(shu)據異常時(shi)，第一時(shi)間以(yi)短(duan)信、傳真、廣(guang)播等形式(shi)通知用(yong)戶，實現綜合預警功能。

4.應急預案處(chu)理：從(cong)專家系(xi)統中直接提(ti)取相應處(chu)理方法(fa)，及(ji)時采(cai)取人(ren)員(yuan)介入、封鎖(suo)道(dao)路等措施，將安全隱患消除(chu)在萌芽(ya)狀態。

5.結構趨勢分(fen)(fen)析(xi)：通(tong)過對基坑(keng)施(shi)工(gong)期的監測(ce)數據分(fen)(fen)析(xi)與安全評價，可實現結構穩定性趨勢分(fen)(fen)析(xi)。

6.歷(li)史資料存儲：監測(ce)數據的(de)存儲，為今后同類(lei)工程(cheng)設計、施(shi)工提供類(lei)比依據。