Study on the Process Technology of Filter Material for the 300 m-high Earth-rock Fill Dam
The Dam of Lianghekou Hydropower Project is a 303 m-high earth-rock fill dam with gravel-soil core.The design requirements for the dam's filter materials Ⅰ and Ⅱ have narrower envelopes and greater diffi-culty in preparation than similar projects.This paper describes the use of the electronic belt scale of DGP1000B to implement precise,rapid,and continuous centralized mixing control of multiple materials.Combined with the experience and lessons learned in the early stage,the full wet method and two-stage filter material mixing method were studied and adopted in the Wazhigou filter material system,providing stable and controllable filter materials for dam filling.Through refined construction at the site,the efficient and high-quality filling of the dam was ensured,and the dam was filled to the top 387 days ahead of schedule.
Lianghekou Hydropower ProjectFilter materialElectronic belt scaleTwo-stage filter materialSta-ble qualityPreparation technology
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