A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Wall protection construction method in highway engineering bridge cast-in-situ bored pile construction
The invention belongs to the technical field of building construction, and discloses a wall protection construction method in highway engineering bridge cast-in-situ bored pile construction, which comprises the following steps: preparing chemical wall protection slurry; performing drilling construction by using a rotary drilling rig and adopting a chemical wall protection slurry wall protection; a hole wall cleaning and extruding mechanism is used for cleaning holes for the first time; hole cleaning is conducted through a reverse circulation method, and second-time hole cleaning is conducted with the assistance of high-pressure air; and concrete is poured into the reinforcement cage through a guide pipe method, and the reinforced concrete cast-in-situ bored pile is formed. By using the chemical wall protection slurry, favorable guarantee is provided for construction of the bridge cast-in-situ bored pile in highway engineering, and smooth construction of the bridge cast-in-situ bored pile is guaranteed. By strictly controlling the viscosity and the pH value of the chemical slurry, the wall protection effect can be effectively improved, hole collapse is reduced, meanwhile, the problem that a drill tip or a drill rod is broken is solved, the construction progress and the construction quality are effectively guaranteed, the construction risk is reduced, economic benefits and social benefits are remarkably improved, and the method is suitable for application and popularization.
本发明属于建筑施工技术领域，公开了一种公路工程桥梁钻孔灌注桩施工中的护壁工法，包括：进行化学护壁泥浆的制备；使用旋挖钻机采用化学护壁泥浆护壁进行钻孔施工；利用孔壁清扫挤压机构进行第一次清孔；采用反循环法清孔并以高压空气辅助进行第二次清孔；采用导管法向钢筋笼内灌注混凝土，形成钢筋混凝土钻孔灌注桩。本发明通过化学护壁泥浆的使用，为公路工程桥梁钻孔灌注桩施工提供了有利保障，保证桥梁钻孔灌注桩施工的顺利进行。本发明通过严格控制化学泥浆的粘度和酸碱度，能有效提高护壁效果，减少塌孔的发生，同时改善钻尖或钻杆折断的问题，有效保证施工进度和施工质量，降低施工风险，显著提高经济效益和社会效益，适于推广应用。
Wall protection construction method in highway engineering bridge cast-in-situ bored pile construction
The invention belongs to the technical field of building construction, and discloses a wall protection construction method in highway engineering bridge cast-in-situ bored pile construction, which comprises the following steps: preparing chemical wall protection slurry; performing drilling construction by using a rotary drilling rig and adopting a chemical wall protection slurry wall protection; a hole wall cleaning and extruding mechanism is used for cleaning holes for the first time; hole cleaning is conducted through a reverse circulation method, and second-time hole cleaning is conducted with the assistance of high-pressure air; and concrete is poured into the reinforcement cage through a guide pipe method, and the reinforced concrete cast-in-situ bored pile is formed. By using the chemical wall protection slurry, favorable guarantee is provided for construction of the bridge cast-in-situ bored pile in highway engineering, and smooth construction of the bridge cast-in-situ bored pile is guaranteed. By strictly controlling the viscosity and the pH value of the chemical slurry, the wall protection effect can be effectively improved, hole collapse is reduced, meanwhile, the problem that a drill tip or a drill rod is broken is solved, the construction progress and the construction quality are effectively guaranteed, the construction risk is reduced, economic benefits and social benefits are remarkably improved, and the method is suitable for application and popularization.
本发明属于建筑施工技术领域，公开了一种公路工程桥梁钻孔灌注桩施工中的护壁工法，包括：进行化学护壁泥浆的制备；使用旋挖钻机采用化学护壁泥浆护壁进行钻孔施工；利用孔壁清扫挤压机构进行第一次清孔；采用反循环法清孔并以高压空气辅助进行第二次清孔；采用导管法向钢筋笼内灌注混凝土，形成钢筋混凝土钻孔灌注桩。本发明通过化学护壁泥浆的使用，为公路工程桥梁钻孔灌注桩施工提供了有利保障，保证桥梁钻孔灌注桩施工的顺利进行。本发明通过严格控制化学泥浆的粘度和酸碱度，能有效提高护壁效果，减少塌孔的发生，同时改善钻尖或钻杆折断的问题，有效保证施工进度和施工质量，降低施工风险，显著提高经济效益和社会效益，适于推广应用。
Wall protection construction method in highway engineering bridge cast-in-situ bored pile construction
一种公路工程桥梁钻孔灌注桩施工中的护壁工法
LUO CHENGYI (author) / RUAN XU (author) / DU ZHONGJUN (author)
2022-03-29
Patent
Electronic Resource
Chinese
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