TSP隧道地质超前预报系统培课件

1、t ts sp p 2 20 03 3g g p pr r ( (g g e eo or ra ad da ar r) )p pe er rc cu us ss si iv ve ed dr ri il ll li in ng gc co or re e d dr ri il ll li in ng ge ex xp pl lo or ra at ti io on nr ra an ng ge e2 20 00 0m m 5 50 0m m2 20 00 0m m2 20 00 0m mf fa ac ce e a ac cc ce es ss sn no oy ye es sy ye es

2、sy ye es sm m e ea as su ur ri in ng g / /d do ow w n n- -t ti im m e e1 1 t to o 1 1. .5 5 h hr rs s1 1. .5 5 h hr rs s. .4 45 5 h hr rs s. .2 24 40 0 h hr rs s. .m m e ea as su ur re em m e en nt t b by ys si it te e p pe er rs so on nn ne el ls sp pe ec ci ia al li is st ts si it te e p pe er rs

3、so on nn ne el ls si it te e p pe er rs so on nn ne el le ev va al lu ua at ti io on n t ti im m e e3 3 t to o 6 6 h hr rs s. . 8 8- -1 10 0 h hr rs s. .0 0. .5 5 h hr rs s. .6 6- -9 9 h hr rs s. .e ev va al lu ua at ti io on n b by ys si it te e p pe er rs so on nn ne el ls sp pe ec ci ia al li is

4、st ts si it te e p pe er rs so on nn ne el lg ge eo ol lo og gi is st tp pe et tr ro og gr ra ap ph hi ic ci in nf fo or rm m a at ti io on nn no on no oc co on nd di it ti io on na al lg go oo od dr ro oc ck k m m e ec ch ha an ni ic ca al lp pr ro op pe er rt ti ie es sg go oo od dn no oc co on nd

5、 di it ti io on na al lg go oo od d ( (l la ab ba at to or ry y) )s sp pa at ti ia al li in nf fo or rm m a at ti io on ng go oo od dn no on no oc co on nd di it ti io on na al l0.0010000.0020000.0030000.0040000.0050000.0060000.0070000.00cost in usd0255075100125150175200tsp 203 d&btsp 203 tbmgeo

6、radar d&bgeoradar tbmpercussion drill d&bpercussion drill tbmcore drill d&bcore drill tbmprediction range in metercost comparison for prediction methods in tbm and d&b headingstsp 203 d&btsp 203 tbmgeoradar d&bgeoradar tbmpercussion drill d&bpercussion drill tbmcore drill

7、 d&bcore drill tbm0.0025000.0050000.0075000.00100000.00125000.00150000.00175000.00200000.00225000.00250000.00275000.00300000.00cost in usd0255075100125150175200tsp 203 d&btsp 203 tbmgeoradar d&bgeoradar tbmpercussion drill d&bpercussion drill tbmcore drill d&bcore drill tbmpredic

8、tion range in metercost comparison for prediction methods in tbm and d&b headingstsp 203 d&btsp 203 tbmgeoradar d&bgeoradar tbmpercussion drill d&bpercussion drill tbmcore drill d&bcore drill tbmreceiverreceivertriggerboxaccessoryboxregistrationunitblastingmachineexplosive withel

9、ectric detonatorfacesan bernadinofurka base tunnelgotthard roadtunnelvereina tunnelgotthard base tunnelltschberg base tunnel3000m .m.1000200015005002500northamstegintermediatepoint of attacksedrunintermediatepoint of attackfaidointermediatepoint of attack3000m a.s.l.10002000gotthard base tunnellengt

10、h 57 kmsouthtbm drivetbm drive /conventional drive conven-tional drivetbm driveaar-massiftzmgotthard-massifpenninic gneiss zoneclavanievzoneurserencarverazonepiora basintbm drive /conventional drive piora synclinepiora exploratory galleryaccess gallerygotthard base tunnelpredicted contact zonelevent

11、inalucomagnocross overvelocitiesdensityyoungsmodulusgradual decreaseof rock strengthfracture zonewide fracturedtransition zone,characterises interface between different limestoneweak fracture zone,connected tokarst/cavity phenomenasnzuckerberg sewer iiii2.75 km 2.62.42.22.01.81.61.41.21.00.80.60.40.

12、20200220240260280upper muschelkalktrigonodus dolomitelower keuperquarternarytsp surveytbmfaultfaultclay layertop viewfacestepwise dropof rock strengthstarttm 2134karstzonepredicted endtm 2165decreasepossible from tm 2188shotstbmtotal length of the tunnels involved: 73 kmtype of excavation: 7.3 m ful

13、l face tbmgeology: high varietysandstone, conglomerate, basalt, andesiteapproximate location of tsp measurement in relation to the overall project.face chainage 3,807mgeometry of tsp layoutdecreasing rock strengthincreasing rock strengthaccording to dyn. youngs modulus21 shotsreceiverlongitudinal vi

14、ew-30% 26 gpa +30%dyn. youngs modulus21 shotsreceiverlongitudinal view3766 37583745random low persistence jointslow rock strengthhigh permeability rockstrengthjoint withwater (50-100 l/s)3708dyke & joint withwater (50-100 l/s)joint jointgood rock mass conditionocc. random jointsobserved geology21 shotsreceiverlongitud