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无锡县系河网地区,农村桥梁多达2693座。1958年以来兴修水利开凿河道,河面加宽了,原小桥不能应用。因此,农桥修建任务是繁重的,怎样确定农桥技术改造的途径,是当前农桥修建工作中的一个重要问题。无锡县交通局曾组织力量到公社生产队进行调查,在具体实践中解决了这个问题,试制成多种型式的农桥。兹介绍如下: 本县自然条件、河道流速及河底冲刷不大,季节水位高差1.2米,变化缓慢。土壤均属黄色粘土,地基容许承压力都达1.5～2.0公斤/平方厘米。河道运输较为繁忙。本县系平原地区,但也有石山,出产石
Wuxi County Department of river network area, as many as 2693 rural bridges. Since 1958, water conservancy has been built and river channels have been broadened, and the original bridges can not be used. Therefore, the construction task of agricultural bridge is arduous, and how to determine the way of agricultural bridge reconstruction is an important issue in the current construction of agricultural bridge. Wuxi County Department of Transportation has organized forces to the commune production team to investigate, in practice to solve this problem, trial made into a variety of types of bridge. Here are the introduction: The natural conditions of the county, the river flow rate and river bottom erosion, season water level elevation difference of 1.2 meters, changes slowly. The soil is yellow clay, the foundation allow pressure up to 1.5 ~ 2.0 kg / cm. River transport is more busy. The county is a plain area, but there are also Rock Hill, producing stone