Laserfiche WebLink
'1 Y •Te•SV: �Y.• _. � - .. .. ^.. . - ..i .v �'. •: V�:•!` .'.:. ...;� r�r'-:7Ci,.k.YT-�F17 T <br />r' . x •i. , �.i' ; S �'1 .. � � ,ter .,... ���� ,,���.yy , <br />P88 <br />hf. <br />6. <br />All casing pipe installations where the diameter is <br />greater than 48 inches will require a preconstruction <br />conference at the project site. -- <br />7. <br />Preconstruction arrangements will be made with the <br />i` <br />_office Chief 'Engineer at least one week.prior to <br />construction. A Railway inspector must be present <br />during the entire construction of the casing pipe.. <br />° <br />The inspector <br />will have complete authority over the <br />project on the Railway's right of way. <br />8. <br />All costs to provide inspection will be borne 'by the <br />lessee.' <br />t4a <br />' <br />D. Tunnel liner requirements are as follows: <br />I. <br />All applicable preceding sections will govern tunnel <br />liner usage proposals. <br />Z. <br />Tunnel liner plate will be 12 Pi, galvanized, and all <br />bolts and nuts will be galvanized, <br />3. <br />Live load will be based on E-80 Railway Loading using <br />applicable formulae and computations performed by a <br />registered professional engineer. The computation <br />results will accompany the plans for review by the <br />Office of the Chief Engineer. <br />4. <br />Grout holes will be provided at 10 foot intervals along <br />the roof and sides. <br />S. <br />The tunnel liner jacking shield will protect 180 degrees <br />of the upper section and material removed to allow for <br />a minimum 1:1 slope with a minimum 2.0 feet of <br />undisturbed soil supporting the overburden. <br />6. <br />The tunnel line installation will progress with <br />sufficient manpower and supervision for around the <br />1� <br />clock construction until the liner is completed. <br />6 <br />:•' <br />E. Carrier pipeline specifications are as follows: <br />4 <br />I. <br />Reinforced Concrete Pipe <br />a. Materials: Modified bell and spigot or tongue <br />;K. <br />and groove in accordance with current ASTM <br />specification <br />C76 Class YY for Railway <br />strength pipe or current specification for <br />4 .:• <br />prestressed concrete pipe. <br />> jd <br />i'. <br />U. • <br />'-: <br />3 <br />'1 Y •Te•SV: �Y.• _. � - .. .. ^.. . - ..i .v �'. •: V�:•!` .'.:. ...;� r�r'-:7Ci,.k.YT-�F17 T <br />r' . x •i. , �.i' ; S �'1 .. � � ,ter .,... ���� ,,���.yy , <br />P88 <br />