京沪线K950施工方案(顶进部分)(国外英文资料).docVIP

京沪线K950施工方案(顶进部分) The construction of the k947-k950 section of the beijing-shanghai line (the lower line, K950 + 264, 2-8.0 m frame bridge and roadbed fill) Employment case Preparation: Reviewer: The approver: Organization: suzhou railway engineering co., LTD Date of preparation: June 2009 The beijing-shanghai line K950 + 264 is the 2-8.0 m frame bridge and the roadbed construction plan First, the basis of preparation The design drawings of the bridge by the hefei railway survey and design institute; Relevant information collected by the construction site investigation; Railways ministry of railways (2006) 177 railway works safety regulations. Railways ministry of railways (2006) 146 railway line repair rules. The ministry of railways (MTR), Beijing (2008), Shanghai railway bureau (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau) (Shanghai railway bureau Second, the purpose of construction The project for the beijing-shanghai downlink K947 - K950 curve bridge supporting projects, for both 2-10.0 m, hafnium masonry beam can not adapt to the transformation requirements, low height curve after modification, new downlink to dial the tao within 2.50 m or so, so the downlink beam bridge converted into 2-8.0 m frame bridge. It is necessary to remove the existing masonry beam and the safety of the vehicle. Transport support conditions On June 14, 2009, the stress of the beijing-shanghai line K947 + 700-k950 + 600 was released. 8:00 on June 16, 2009 - July 20, 2009 24:00 jinghu downlink K947 + 700-45 km/h speed limit between K950 + 600, between the two lines roadbed filling, in addition to the existing beam bridge at the ends of the part of