Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a new and old roadbed splicing structure for road widening and a construction method of the new and old roadbed splicing structure. The structure comprises an original roadbed,a broadened roadbed, anchor rods, first longitudinal connecting ribs, second longitudinal connecting ribs, vertical joint bars and steel strands, reserved steps on two sides of original roadbed, thesteps are overlapped with the broadened roadbed; a plurality of anchor rods are obliquely and downwards arranged in the middle of each step; the anchor rods are arranged at equal intervals in the roaddirection. The end parts of the plurality of anchor rods on the same step are connected by first longitudinal connecting ribs; joint bars are vertically nailed into the edge of the broadened subgradeand connected through second longitudinal connecting bars, one end of each steel strand is fixed to the end of the corresponding anchor rod, the steel strands are horizontally straightened and tightened and then fixed to vertical tie bars at the edge of the subgrade, layered filling is conducted in the broadened subgrade, and plain concrete revetment is arranged on the broadened subgrade slope. The integrity of the new roadbed and the old roadbed is enhanced, the settlement difference of the joint of the new roadbed and the old roadbed is reduced, and the problem that the roadbed is prone tolongitudinal cracks due to too large settlement difference of the joint of the new roadbed and the old roadbed is solved.
本发明公开了一种用于道路拓宽的新老路基拼接结构及其施工方法，包括原路基、拓宽路基、锚杆、第一纵向连接筋、第二纵向连接筋、竖向插筋以及钢绞线，原路基两侧预留台阶，台阶与拓宽路基搭接，每一级台阶中部斜向下设有多根锚杆，锚杆沿道路方向等间距排列，同一台阶上的多根锚杆端部用第一纵向连接筋连接，拓宽路基的边缘处竖向钉入插筋，多根插筋之间用第二纵向连接筋连接，钢绞线一端固定在锚杆端部上，水平拉直绷紧后固定在路基边缘处竖向拉筋上，拓宽路基中进行分层填筑，拓宽路基边坡设有素混凝土护坡。本发明增强了新老路基的整体性，减小了新老路基结合部位的沉降差，解决了新老路基结合处沉降差过大路基易出现纵向裂缝的问题。
The invention discloses a new and old roadbed splicing structure for road widening and a construction method of the new and old roadbed splicing structure. The structure comprises an original roadbed,a broadened roadbed, anchor rods, first longitudinal connecting ribs, second longitudinal connecting ribs, vertical joint bars and steel strands, reserved steps on two sides of original roadbed, thesteps are overlapped with the broadened roadbed; a plurality of anchor rods are obliquely and downwards arranged in the middle of each step; the anchor rods are arranged at equal intervals in the roaddirection. The end parts of the plurality of anchor rods on the same step are connected by first longitudinal connecting ribs; joint bars are vertically nailed into the edge of the broadened subgradeand connected through second longitudinal connecting bars, one end of each steel strand is fixed to the end of the corresponding anchor rod, the steel strands are horizontally straightened and tightened and then fixed to vertical tie bars at the edge of the subgrade, layered filling is conducted in the broadened subgrade, and plain concrete revetment is arranged on the broadened subgrade slope. The integrity of the new roadbed and the old roadbed is enhanced, the settlement difference of the joint of the new roadbed and the old roadbed is reduced, and the problem that the roadbed is prone tolongitudinal cracks due to too large settlement difference of the joint of the new roadbed and the old roadbed is solved.
本发明公开了一种用于道路拓宽的新老路基拼接结构及其施工方法，包括原路基、拓宽路基、锚杆、第一纵向连接筋、第二纵向连接筋、竖向插筋以及钢绞线，原路基两侧预留台阶，台阶与拓宽路基搭接，每一级台阶中部斜向下设有多根锚杆，锚杆沿道路方向等间距排列，同一台阶上的多根锚杆端部用第一纵向连接筋连接，拓宽路基的边缘处竖向钉入插筋，多根插筋之间用第二纵向连接筋连接，钢绞线一端固定在锚杆端部上，水平拉直绷紧后固定在路基边缘处竖向拉筋上，拓宽路基中进行分层填筑，拓宽路基边坡设有素混凝土护坡。本发明增强了新老路基的整体性，减小了新老路基结合部位的沉降差，解决了新老路基结合处沉降差过大路基易出现纵向裂缝的问题。
New and old roadbed splicing structure for road widening and construction method thereof
一种用于道路拓宽的新老路基拼接结构及其施工方法
HUANG JIE (Autor:in)
02.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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