铺设拼装式铝合金道面板的道面结构加载性能

蔡良才; 周少辉; 许巍; 岑国平; 杨文山

doi:10.19818/j.cnki.1671-1637.2015.06.001

铺设拼装式铝合金道面板的道面结构加载性能

doi: 10.19818/j.cnki.1671-1637.2015.06.001

1.
空军工程大学机场建筑工程系，陕西西安 710038
2.
空军场务技术研究中心，北京 100195

基金项目:

国家自然科学基金项目 51578580

军队科研项目 CKJ13C028

详细信息

作者简介:
蔡良才(1960-), 男, 浙江宁波人, 空军工程大学教授, 工学博士, 从事机场道面研究

中图分类号: U416.212
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出版历程
- 收稿日期: 2015-08-12
- 刊出日期: 2015-06-25

Loading performances of pavement with assembled aluminum mats

1.
Department of Airport and Architecture Engineering, Air Force Engineering University, Xi'an 710038, Shaanxi, China
2.
Institute of Airport and Pavement Technology, Beijing 100195, China

More Information

Author Bio:
CAI Liang-cai(1960-), male, professor, PhD, +86-29-84787008, Liangcai07@126.com

摘要

摘要: 对拼装式铝道面板试样进行了四点弯曲试验以检测其强度。修建了2条不同强度的土质试验段, 分别铺设了4种不同厚度与强度的蜂窝铝夹芯道面板, 构建了不同类型的简易机场拼装式铝道面板道面结构, 采用加载车模拟轻型与重型飞机荷载, 以最大车辙达到30mm与20%的道面板出现损坏作为控制标准, 测试了拼装式道面板道面结构在不同轮载作用次数下的变形与表面车辙。试验结果表明: 道面板1~4的有效综合模量分别为1 616、1 862、2 064、2 328 MPa; 当道面板1~4分别铺设在单层稳定土基层上时, 采用75kN荷载作用, 400次通行后各道面结构的竖向变形分别为35、19、10、12mm, 500次通行后各道面结构最大相对车辙分别为50、28、16、10mm; 当道面板铺设在双层稳定土基层上时, 采用150kN通行荷载作用, 1 000次通行后铺设道面板4的道面结构的竖向变形仅为16mm, 铺设道面板3、4的道面结构的最大相对车辙分别为36、24mm, 道面板横向连接处易凹陷。可见, 在相同基层条件与通行荷载作用下, 采用3003型铝合金材料构造的道面板1相对采用6A02型铝合金材料构造的道面板2~4更易损坏, 相应的道面结构也更易失效; 道面板2~4铺设在单层稳定土基层上能满足轻型飞机低架次通行要求, 道面板4铺设在双层稳定土基层上能够满足重型飞机的使用要求。
- 机场工程 /
- 简易机场 /
- 拼装式道面板 /
- 通行试验 /
- 变形 /
- 车辙
Abstract: The strength of assembled aluminum mat was detected by four-point bending loading test.Two soil test sections with different strengths were built.Four aluminum honeycombsandwich mats with different thicknesses and strengths were paved on the test sections to simulate different pavements with assembled aluminum mats at expedient airfield.Light and heavy aircraft loads were simulated by using loaded cart.The deformations and ruts of the pavements under different loading times were measured and the control indexes were that the maximum rutting depth reached 30 mm and 20% mats were damaged.Experimental result indicates that the effective moduli of mats 1-4 are 1 616, 1 862, 2 064 and 2 328 MPa respectively.When mats 1-4 are installed over single-layer stabilized soil base and loaded by 75 kN, the vertical deformations of the pavements are respectively 35, 19, 10 and 12mm after 400 loading times, and the relative maximum ruts are respectively 50, 28, 16 and 10 mm after 500 loading times.When mats 1-4 are installed over double-layer stabilized soil base and loaded by 150 kN, thevertical deformation of the pavement with mat 4is 16 mm after 1 000 loading times, the relative maximum ruts of the pavements with mats 3 and 4 are 36 and 24 mm respectively, and the horizontal joints of mats sink obvious.Under the same base condition and loading times, mat 1 made of 3003 aluminum alloy is easier to damage compared with mats 2-4 made of 6A 02 aluminum alloy, and the pavement constructed by mat 1is easier to fail than the others.When mats 1-4 are installed over single-layer stabilized soil base and loaded by 75 kN, the matting pavements can meet the using requirements of light aircrafts.When mat 4 is installed over double-layer stabilized soil base, the matting pavement can meet the using requirements of heavy aircrafts.
- airport engineering /
- expedient airfield /
- assembled mat /
- traffic loading test /
- deformation /
- rut

HTML全文

图 1 试验道面板构型

Figure 1. Test mat structure

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图 2 加载试验

Figure 2. Loading test

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图 3 试验段尺寸

Figure 3. Sizes of test sections

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图 4 试验段结构

Figure 4. Structures of test sections

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图 5 土质试验段

Figure 5. Soil test sections

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图 6 加载车

Figure 6. Load cart

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图 7 加载试验

Figure 7. Loading test

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图 8 测点布置

Figure 8. Distribution of measuring points

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图 9 道面结构A~D竖向变形

Figure 9. Vertical deformations of pavements A-D

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图 10 道面结构a~d竖向变形

Figure 10. Vertical deformations of pavements a-d

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图 11 道面结构a竖向变形横向分布

Figure 11. Lateral distributions of vertical deformations of pavement a

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图 12 道面结构b竖向变形横向分布

Figure 12. Lateral distributions of vertical deformations of pavement b

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图 13 道面结构c竖向变形横向分布

Figure 13. Lateral distributions of vertical deformations of pavement c

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图 14 道面结构d竖向变形横向分布

Figure 14. Lateral distributions of vertical deformationsof pavement d

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图 15 土质基层表面

Figure 15. Soil base surface

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表 1 试验道面板参数

Table 1. Parameters of test mats

表 2 土的基本性能

Table 2. Basic performances of soil

表 3 土壤稳定剂性能

Table 3. Performances of soil stabilizer

表 4 石灰技术性能

Table 4. Technical performances of lime

表 5 道面板变形

Table 5. Mat deformations

表 6 基层与土基压缩变形

Table 6. Compressive deformations of bases and subgrades

表 7 道面结构A~D相对车辙

Table 7. Relative ruts of pavements A-D

表 8 道面结构a~d相对车辙

Table 8. Relative ruts of pavements a-d

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