廣州增城沙莊至花都北興公路二期工程(荔城至花都北興段) 項(xiàng)目隧道監(jiān)控及超前地質(zhì)預(yù)報(bào)技術(shù)方案

1、廣州增城沙莊至花都北興公路二期工程廣州增城沙莊至花都北興公路二期工程(荔城至花都北興段荔城至花都北興段)項(xiàng)目隧道監(jiān)控及超前地質(zhì)預(yù)報(bào)技術(shù)方案項(xiàng)目隧道監(jiān)控及超前地質(zhì)預(yù)報(bào)技術(shù)方案工程名稱工程名稱：廣州增城沙莊至花都北興公路二期工程(荔城至花都北興段)項(xiàng)目隧道監(jiān)控及超前地質(zhì)預(yù)報(bào)（JK01標(biāo)段）委托單位委托單位：廣州市高速公路有限公司工程地點(diǎn)工程地點(diǎn)：廣州市增城區(qū)方案編號方案編號：2016方案M0020廣東省建筑科學(xué)研究院集團(tuán)股份有限公司廣東省建

2、筑科學(xué)研究院集團(tuán)股份有限公司二○一六年六月二日廣州增城沙莊至花都北興公路二期工程廣州增城沙莊至花都北興公路二期工程(荔城至花都北興段荔城至花都北興段)項(xiàng)目隧道監(jiān)控及超前地質(zhì)預(yù)報(bào)（項(xiàng)目隧道監(jiān)控及超前地質(zhì)預(yù)報(bào)（JK01標(biāo)段）標(biāo)段）第3頁共55頁目錄目錄1.工程概況..........................................................................................

3、.............................................52.監(jiān)測依據(jù).......................................................................................................................................53.監(jiān)測目的和意義.......................

4、..................................................................................................54.監(jiān)測內(nèi)容...................................................................................................................

5、....................65.監(jiān)測點(diǎn)布置原則、監(jiān)測儀器及精度要求...........................................................................66.監(jiān)測儀器、監(jiān)測頻率及報(bào)警值.........................................................................................

6、.....77.工作方案.......................................................................................................................................97.1隧道監(jiān)控量測方案.............................................................

7、................................................97.1.1地質(zhì)支護(hù)觀察(必測項(xiàng)目).........................................................................................97.1.2周邊收斂位移量測(必測項(xiàng)目).............................................

8、...................................97.1.3拱頂下沉量測(必測項(xiàng)目).......................................................................................127.1.4地表下沉量測(必測項(xiàng)目).............................................................

9、..........................137.1.5小凈距拱腰處爆破振動速度測試(必測項(xiàng)目)...................................................157.1.6錨桿拉拔量測(必測項(xiàng)目).......................................................................................177.1.7初支砼

10、內(nèi)力量測(選測項(xiàng)目)...................................................................................187.1.8圍巖壓力量測(選測項(xiàng)目).......................................................................................197.1.9錨桿軸力量測(選測項(xiàng)目)..

11、.....................................................................................217.1.10鋼支撐內(nèi)力量測(選測項(xiàng)目).................................................................................217.1.11初支、二襯空洞掃描(選測項(xiàng)目)..........

12、.............................................................227.1.12二襯斷面量測(選測項(xiàng)目).....................................................................................237.2超前地質(zhì)預(yù)報(bào)方案.........................................

13、..................................................................257.2.1地震波反射法（TRT）...........................................................................................257.2.2探地雷達(dá)探測方法..............................

14、......................................................................287.3監(jiān)測配合條件....................................................................................................................307.4監(jiān)測安全條件............

15、........................................................................................................318.監(jiān)測數(shù)據(jù)報(bào)警機(jī)制及測點(diǎn)保護(hù)標(biāo)示..................................................................................328.1監(jiān)測數(shù)據(jù)報(bào)警應(yīng)急措施

16、..................................................................................................328.2監(jiān)測點(diǎn)保護(hù)及標(biāo)識...........................................................................................................33