A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Inverted bituminous pavement structure design method
The invention relates to an inverted bituminous pavement structure design method which mainly comprises the following steps: adopting a conventional bituminous pavement structure design method to preliminarily simulate the thickness of each structure layer of an inverted bituminous pavement structure, and then performing conventional pavement structure checking calculation; determining a maximum shear stress tau max in an aggregate base layer of the inverted bituminous pavement structure and a main stress sigma 3 at the maximum shear stress; determining an internal friction angle and a cohesive force c of the aggregate base material; and verifying the shearing performance of the aggregate base material. With the method, defects that shear stress generated in the aggregate base layer is toolarge, and shear instability damages are generated can be effectively overcome.
本发明涉及一种倒装式沥青路面结构设计方法，该方法主要包括如下步骤：采用常规沥青路面结构设计方法，初拟倒装式沥青路面结构各结构层厚度，然后进行常规路面结构验算；确定倒装式沥青路面结构粒料类基层内的最大剪应力τ及最大剪应力处的主应力σ；确定粒料类基层材料的内摩擦角和粘聚力c；验证粒料类基层材料的剪切性能。通过该方法可以有效地避免粒料类基层内产生的剪应力过大、产生剪切失稳破坏的缺陷。
Inverted bituminous pavement structure design method
The invention relates to an inverted bituminous pavement structure design method which mainly comprises the following steps: adopting a conventional bituminous pavement structure design method to preliminarily simulate the thickness of each structure layer of an inverted bituminous pavement structure, and then performing conventional pavement structure checking calculation; determining a maximum shear stress tau max in an aggregate base layer of the inverted bituminous pavement structure and a main stress sigma 3 at the maximum shear stress; determining an internal friction angle and a cohesive force c of the aggregate base material; and verifying the shearing performance of the aggregate base material. With the method, defects that shear stress generated in the aggregate base layer is toolarge, and shear instability damages are generated can be effectively overcome.
本发明涉及一种倒装式沥青路面结构设计方法，该方法主要包括如下步骤：采用常规沥青路面结构设计方法，初拟倒装式沥青路面结构各结构层厚度，然后进行常规路面结构验算；确定倒装式沥青路面结构粒料类基层内的最大剪应力τ及最大剪应力处的主应力σ；确定粒料类基层材料的内摩擦角和粘聚力c；验证粒料类基层材料的剪切性能。通过该方法可以有效地避免粒料类基层内产生的剪应力过大、产生剪切失稳破坏的缺陷。
Inverted bituminous pavement structure design method
一种倒装式沥青路面结构设计方法
CHEN FEI (author) / MA RONG (author) / MA DEWEN (author) / HAN HONGZE (author) / LI YONGDONG (author) / DU LIXIN (author) / QIN HAILIAN (author) / XU JUN (author)
2020-05-12
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Haze-reduction bituminous pavement material and environment-friendly bituminous pavement structure
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Bituminous pavement design -- Aggregate survey
| Engineering Index Backfile | 1921