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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2009, Vol. 28 ›› Issue (3): 559-564.DOI: 10.3969/j.issn.1674-0696.2009.03.22

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基于振动成型的级配碎石路用性能及设计标准

周卫峰1,李彦伟2,张秀丽1,马骉3   

  1. 1.天津市市政工程研究院,天津300074;2.石家庄交通局,河北石家庄050051; 3.长安大学特殊地区公路工程教育部重点实验室,陕西西安710064
  • 收稿日期:2009-02-15 修回日期:2009-03-20 出版日期:2009-06-15 发布日期:2015-04-15
  • 作者简介:周卫峰(1971—),男,陕西韩城人,高级工程师,博士,主要从事道路材料方面的研究工作。Email:zhouweif eng0000@126.com。
  • 基金资助:
    交通部西部交通建设科技项目( 200631800009)

Pavement?Performance?and?Design?Standard?of?Graded?Broken?Stone?Based?on?Vibration?Molding

ZHOU Wei-feng1, LIYan-wei2, ZHANG Xiu-li1, MA Biao3   

  1. 1.?Tianjin?Municipal?Engineering?Research?Institute,?Tianjin?300074,?China;??2.?Shijiazhuang?Transportation?Bureau,?Hebei?Shijiazhuang?050051,?China;?3.?Key?Laboratory?for?Special?Area?Highway?Engineering?of?Ministry?of?Education,??Changan?University,?Shaanxi?Xi＇an?710064,?China
  • Received:2009-02-15 Revised:2009-03-20 Online:2009-06-15 Published:2015-04-15

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摘要： 采用不同成型方式,研究对比了级配碎石的物理力学特性。提出了基于振动成型的级配碎石设计指标及设 计标准,并应用实体工程进行验证。研究结果表明,提出的振动成型方式与现场碾压方式更为匹配,与重型击实相 比,振动法设计的级配碎石最大干密度系统有所提高;CBR、抗变形能力等力学指标明显优于重型击实法设计的级 配碎石。实体工程表明,振动成型设计的级配碎石为基层的复合式路面路表弯沉与半刚性基层路表弯沉相当;不 需特殊设备,采用改进的施工工艺,现场含水量、级配及压实度均能够达到研究提出的振动成型设计标准。

关键词: 道路工程, 级配碎石, 振动成型, 设计标准, 路用性能

Abstract: In?order?to?make?full?use?of?the?advantage?of?the?graded?broken?stone?and?improve?the?road?performance?of?graded?broken?stone,?different?molding?ways?are?used?to?analyze?the?physical?and?mechanical?properties?of?graded?broken?stone.?The?design?specifications?and?design?standards?of?graded?broken?stone?which?are?based?on?vibration?molding?are?proposed,?and?their?feasibility?is?verified?through?practical?project.?The?results?indicate?that?the?vibration?molding?matches?much?better?with?the?working?way?of?roller.?Comparing?with?the?heavy?compaction?way,?the?maximum?dry?density?designed?by?vibration?way?is?improved?remarkably;?the?mechanical?indexes?of?graded?broken?stone?got?by?the?vibration?molding,?including?CBR,?the?anti-deformation?ability?and?so?on,?are?much?better.?Practical?engineering?shows?that：?the?deflection?of?composite?pavement?with?graded?broken?stone?base?is?equivalent?to?the?deflection?of?semi-rigid?pavement.?Without?the?special?equipments,?the?on-site?water?content,?gradation?and?compaction?degree?can?meet?the?standards?of?vibration?design?method?through?the?application?of?the?improved?construction?technology.

Key words: road engineering , graded broken stone , vibration molding , design standards , road performance ;

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