牛角坪特大桥2号墩薄壁、高墩施工技术

Construction Techniques for Thin-Wall and High-Rise Pier No.2 of Niujiaoping Bridge

牛角坪特大桥2号主墩高98 m,除底部6 m、墩顶1.2 m范围为实体段外,其余部分均为空心薄壁结构,混凝土量15 222 m3。该墩身具有截面面积大、墩高、单次混凝土浇筑方量大以及混凝土级别高、泵送高度高等特点。介绍2号主墩墩身施工技术。

The main pier No. 2 of Niujiaoping Bridge is 98 m high and all parts of the pier are of hollow thin-wall structure with the exception that the parts of the 6-m height at the bottom and 2-m height at the top of the pier are of solid structure with total concrete volume of all the pier up to 15 222 m^3. The pier is characteristic of large cross section area, great height, massive concrete volume of one-time casting, high grade concrete and high concrete pumping altitude. In this paper, the construction techniques for the pier are dealt with.