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首页> 外文会议>International Center for Aggregates Research 5th Annual Symposium Proceedings; Apr 21-23, 1997; Austin, TX >INCREASED SINGLE-LIFT DEPTHS FOR AGGREGATE BASE COURSE IN HIGHWAY CONSTRUCTION: Secondary Road 1117 Relocation, Richmond County, North Carolina
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INCREASED SINGLE-LIFT DEPTHS FOR AGGREGATE BASE COURSE IN HIGHWAY CONSTRUCTION: Secondary Road 1117 Relocation, Richmond County, North Carolina

机译：高速公路建设中整体基础课程的单井深度增加：北卡罗来纳州里士满县1117号二次公路搬迁

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摘要

To determine its feasibility, practicality and economic effects, this research project was conducted on increasing the individual compacted lift depths of Aggregate Base Course. The research project was conducted on the realignment of Secondary Road (SR) 1117 in Richmond County, North Carolina. At the direction of Vulcan Materials Company, and with approval and guidance from NCDOT, Kimley-Horn and Associates, Inc., designed the 1.2-mile length of road with Aggregate Base Course lift depths greater than the 8" allowed under current NCDOT specifications. During placement of these increased depth lifts by the contractor, Highway Constructors, Inc., extensive testing and monitoring of the project was conducted by Vulcan Materials, Kimley-Horn, and the Materials and Test Unit of the NCDOT. The pavement design developed by Kimley-Horn required construction of sections of roadway with 10- and 12-inch depths of compacted Aggregate Base Course. With the approval of NCDOT, both of these sections of aggregate base material were placed in single lifts and compacted. Test results concluded that the 10- and 12-inch compacted lifts of aggregate base were successfully placed and compacted, and the required gradation, density, and moisture content were maintained throughout the entire depth of the compacted lift.
机译：为了确定其可行性，实用性和经济效果，该研究项目的目的是增加骨料基础层的压实深度。该研究项目是在北卡罗来纳州里士满县的1117年第二次公路（SR）改型上进行的。在Vulcan材料公司的指导下，在NCDOT的批准和指导下，Kimley-Horn and Associates，Inc.设计了1.2英里长的道路，其总基层举升深度大于当前NCDOT规范允许的8英寸。在承包商承包商Highway Constructors，Inc.安排这些增加的深度升降机的过程中，Vulcan Materials，Kimley-Horn和NCDOT的材料与测试部门对项目进行了广泛的测试和监控。 -Horn要求建造深度为10英寸和12英寸的压实骨料基层的路段，在NCDOT的批准下，将这两个骨料基层都放置在单个升降机中并压实，测试结果得出结论： -成功放置并压实了12英寸压实的骨料基层升降机，并在整个深度o内保持了所需的等级，密度和水分含量f压实的电梯。

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