Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for testing resilience modulus of roadbed with road arch
The invention provides a method for testing the resilience modulus of a roadbed with a road camber, and relates to the technical field of road engineering, a bearing plate is placed at a roadbed measuring point, and the bearing plate is parallel to the plane where the road camber is located at the measuring point; the vertical bearing plate is subjected to multi-stage loading and unloading, and actually-measured rebound deformation values generated at the two ends of the bearing plate in the vertical direction are measured correspondingly; based on the included angle between the bearing plate and the horizontal plane, the rebound modulus at the measuring point is obtained by combining the rebound deformation value; aiming at the problems of low efficiency and poor precision caused by leveling when the rebound modulus of a stone subgrade and a soil-rock mixed filling subgrade is tested at present, the fitting degree of a bearing plate and the subgrade is improved by filling surface recesses, the bearing plate is directly and obliquely placed, and the rebound modulus is calculated based on multi-stage loading and unloading and by measuring a rebound deformation value. The leveling of the stone roadbed and the soil-rock mixed filling roadbed is avoided, so that the influence on the looseness of the roadbed is avoided, and the testing efficiency and the testing precision are improved.
本发明提供一种具有路拱的路基回弹模量测试方法，涉及道路工程技术领域，于路基测点放置承载板，并使承载板与测点处路拱所在平面平行；垂直承载板进行多级加载、卸载，分别测取承载板两端产生的竖直方向的实测回弹变形值；基于承载板与水平面夹角，结合回弹变形值获取测点处的回弹模量；针对目前石方路基和土石混合填筑路基测试回弹模量时进行整平而导致效率低、精度差的问题，通过填充表面凹陷提高承载板与路基的贴合度，直接倾斜放置承载板，基于多级加载、卸载并测取回弹变形值计算回弹模量，避免了对石方路基和土石混合填筑路基整平，从而避免了对路基松动的影响，提高测试效率和测试精度。
Method for testing resilience modulus of roadbed with road arch
The invention provides a method for testing the resilience modulus of a roadbed with a road camber, and relates to the technical field of road engineering, a bearing plate is placed at a roadbed measuring point, and the bearing plate is parallel to the plane where the road camber is located at the measuring point; the vertical bearing plate is subjected to multi-stage loading and unloading, and actually-measured rebound deformation values generated at the two ends of the bearing plate in the vertical direction are measured correspondingly; based on the included angle between the bearing plate and the horizontal plane, the rebound modulus at the measuring point is obtained by combining the rebound deformation value; aiming at the problems of low efficiency and poor precision caused by leveling when the rebound modulus of a stone subgrade and a soil-rock mixed filling subgrade is tested at present, the fitting degree of a bearing plate and the subgrade is improved by filling surface recesses, the bearing plate is directly and obliquely placed, and the rebound modulus is calculated based on multi-stage loading and unloading and by measuring a rebound deformation value. The leveling of the stone roadbed and the soil-rock mixed filling roadbed is avoided, so that the influence on the looseness of the roadbed is avoided, and the testing efficiency and the testing precision are improved.
本发明提供一种具有路拱的路基回弹模量测试方法，涉及道路工程技术领域，于路基测点放置承载板，并使承载板与测点处路拱所在平面平行；垂直承载板进行多级加载、卸载，分别测取承载板两端产生的竖直方向的实测回弹变形值；基于承载板与水平面夹角，结合回弹变形值获取测点处的回弹模量；针对目前石方路基和土石混合填筑路基测试回弹模量时进行整平而导致效率低、精度差的问题，通过填充表面凹陷提高承载板与路基的贴合度，直接倾斜放置承载板，基于多级加载、卸载并测取回弹变形值计算回弹模量，避免了对石方路基和土石混合填筑路基整平，从而避免了对路基松动的影响，提高测试效率和测试精度。
Method for testing resilience modulus of roadbed with road arch
一种具有路拱的路基回弹模量测试方法
LIU SHUTANG (Autor:in) / WANG KAI (Autor:in) / MA CHUANYI (Autor:in) / CAO WEIDONG (Autor:in) / MENG XIANGLONG (Autor:in) / LIU SHIJIE (Autor:in) / MA ZHENGHAO (Autor:in) / WANG SHUO (Autor:in) / CUI YOUCHAO (Autor:in)
22.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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