论文部分内容阅读
在长江三角洲一带,农田开深沟排水后,所有过去所筑的公路涵洞,一般都嫌位置太高,有些排水失却作用。江苏无锡市郊区公路就有这种情形。去春一个月内就翻建和整理了过水沟计数十条,这是已成为普遍的情形。另一种流经戽水站的涵洞,天旱枯水时期也因涵洞位置高,使戽水站吸水不上,影响农田灌溉,据戽水站司机告知,涵洞内积水在60公分以下时,戽水就会发生困难。去年天旱时期,在我们无锡至梅园公路上,就有两处涵洞发生这种情形,要想洞底掘沟,一则影响基础安全,二则建筑时满堂灰浆灌砌,开掘也颇不易。幸喜当时南风频频吹送,太湖水得到涌送,得以渡过难关。
In the vicinity of the Yangtze River Delta, all the culverts built in the past after the farmland was drained by drainage ditches were generally too high and some were ineffective. Jiangsu Wuxi suburban roads have this situation. It has become a common practice to renovate and arrange over 10 counts of watercourses within a month of spring. Another through the Cangshui Culvert, Droughts dry period also due to culverts high, so that water is not Sui water station, affecting farmland irrigation, according to the driver of the Sui water station, the culvert within 60 cm below the water , 戽 water will be difficult. During the drought last year, there were two culverts in our Wuxi-Meiyuan highway. In case of tunnel digging, one affected basic safety. . Fortunately, when the southerly wind blowing, the Taihu Lake water was sent, to weather the storm.