Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for backfilling abutment back of light foam concrete bridge abutment
The invention discloses a light foam concrete bridge abutment back backfilling construction method, and relates to the technical field of bridge abutment back backfilling construction. Comprising construction preparation; reversely excavating the abutment back of the bridge: excavating the contact part of the longitudinal section direction and the normal roadbed section into a step surface, and paving an HDPE (High-Density Polyethylene) impermeable geomembrane; construction of a base part of the foam concrete layer: firstly clearing slag, filling and replacing the slag to the bottom of the bearing platform, then laying a C25 concrete slab and a 30 cm graded broken stone leveling layer, installing a PVC drainage pipe with the diameter of phi 50 mm, and laying water-permeable geotextile; constructing a reinforced concrete retaining wall; pouring a foam concrete layer: mixing cement fly ash slurry in a concrete mixing plant, and controlling the volume weight of foam concrete by adjusting the foaming amount of bubbles; a pavement structure and auxiliary construction thereof: pouring a concrete approach slab and performing asphalt concrete construction; construction monitoring: observing the settlement of the platform back by burying a settlement plate; the light foam concrete is used for backfilling the abutment back of the bridge abutment, so that the problem of differential settlement of a bridge and a roadbed is solved.
本发明公开了一种轻质泡沫混凝土桥台台背回填的施工方法，涉及桥台台背回填施工技术领域。包括施工准备；桥梁台背反开挖：纵断面方向与正常路基段接触处开挖成台阶面，并铺设HDPE防渗土工膜；泡沫混凝土层基底部分施工：首先清宕渣填筑换填到承台底部，然后铺设C25混凝土板、30cm级配碎石调平层，并安装Φ50mm的PVC排水管，铺设透水土工布；钢筋砼护壁施工；泡沫混凝土层浇筑：在混凝土搅拌站拌制好水泥粉煤灰浆体，通过调整气泡的发泡量来控制泡沫混凝土的容重；路面结构及其附属施工：浇筑混凝土搭板及其沥青混凝土施工；施工监测：通过埋设沉降板来观察台背的沉降；本发明将轻质泡沫混凝土用于桥台台背回填，来改善桥梁与路基的不均匀沉降问题。
Construction method for backfilling abutment back of light foam concrete bridge abutment
The invention discloses a light foam concrete bridge abutment back backfilling construction method, and relates to the technical field of bridge abutment back backfilling construction. Comprising construction preparation; reversely excavating the abutment back of the bridge: excavating the contact part of the longitudinal section direction and the normal roadbed section into a step surface, and paving an HDPE (High-Density Polyethylene) impermeable geomembrane; construction of a base part of the foam concrete layer: firstly clearing slag, filling and replacing the slag to the bottom of the bearing platform, then laying a C25 concrete slab and a 30 cm graded broken stone leveling layer, installing a PVC drainage pipe with the diameter of phi 50 mm, and laying water-permeable geotextile; constructing a reinforced concrete retaining wall; pouring a foam concrete layer: mixing cement fly ash slurry in a concrete mixing plant, and controlling the volume weight of foam concrete by adjusting the foaming amount of bubbles; a pavement structure and auxiliary construction thereof: pouring a concrete approach slab and performing asphalt concrete construction; construction monitoring: observing the settlement of the platform back by burying a settlement plate; the light foam concrete is used for backfilling the abutment back of the bridge abutment, so that the problem of differential settlement of a bridge and a roadbed is solved.
本发明公开了一种轻质泡沫混凝土桥台台背回填的施工方法，涉及桥台台背回填施工技术领域。包括施工准备；桥梁台背反开挖：纵断面方向与正常路基段接触处开挖成台阶面，并铺设HDPE防渗土工膜；泡沫混凝土层基底部分施工：首先清宕渣填筑换填到承台底部，然后铺设C25混凝土板、30cm级配碎石调平层，并安装Φ50mm的PVC排水管，铺设透水土工布；钢筋砼护壁施工；泡沫混凝土层浇筑：在混凝土搅拌站拌制好水泥粉煤灰浆体，通过调整气泡的发泡量来控制泡沫混凝土的容重；路面结构及其附属施工：浇筑混凝土搭板及其沥青混凝土施工；施工监测：通过埋设沉降板来观察台背的沉降；本发明将轻质泡沫混凝土用于桥台台背回填，来改善桥梁与路基的不均匀沉降问题。
Construction method for backfilling abutment back of light foam concrete bridge abutment
一种轻质泡沫混凝土桥台台背回填的施工方法
WU XIAOLIANG (Autor:in) / TAO YUECHANG (Autor:in)
24.10.2023
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
Standardized construction method for backfilling abutment back
| Europäisches Patentamt | 2024
Bridge abutment backfilling method and backfilling structure of urban bridge
| Europäisches Patentamt | 2024
Light foamed soil for abutment back backfilling and construction method
| Europäisches Patentamt | 2015
Method for controlling abutment back backfilling construction quality
| Europäisches Patentamt | 2023