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随着国民经济的迅速发展和对外贸易的不断扩大,铁路运量在大幅度地增长,加之旅客交通和旅游事业发展的需要,我国现有许多铁路的技术标准和运送能力,显然不能适应铁路现代化和运量增长的要求,迫切需要进行技术改造和能力的加强。 在既有线的改造中,工程地质勘测的任务,是查明控制线路的不良地质及重点工程的地质条件;提出选定线路改建或绕行方案的意见;提供桥、隧、路基各类工程设计所需的工程地质资料;以及砂、石建筑材料的资料。并要防止在改建中由于不正确的挖方,或没有深入进行必要的工程地质工作而带来新的工程地质病害,例如,不要由于增大曲线半径而破坏不稳定的山坡。
With the rapid development of the national economy and the continuous expansion of foreign trade, with the rapid growth of rail traffic and the needs of passenger transportation and tourism, the existing technical standards and carrying capacity of many railways in our country obviously can not adapt to the modernization of the railway And the demand for traffic growth, there is an urgent need for technological transformation and enhancement of capabilities. In the reconstruction of existing lines, the task of engineering geological survey is to identify the adverse geological conditions of control lines and the geological conditions of key projects; to put forward the opinions on the options of rebuilding or bypassing selected lines; to provide various engineering designs for bridges, tunnels and embankments The required engineering geological information; and sand, stone building materials information. And to prevent new engineering geological diseases from being introduced due to improper excavation or in-depth necessary engineering geological work during the alteration. For example, do not destroy unstable slopes by increasing the radius of the curve.