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漳龙高速公路龙岩境内石质边坡较多,其中九砂溪高架桥23～34号墩(K68+470～K68+570)左侧石质边坡高70多米,长140米,边坡面积约5000平方米,为灰砂岩,弱风化石质,如用普通钢筋混凝土喷锚支护,可稳定边坡,但与周边自然生态环境不协调,影响高速公路景观的整体美观;如采用普通挂网片喷草种施工技术,由于弃土层有机质含量极低,肥力较差,草种难以附着在边坡上,无法正常生长。
There are many stony slopes in Longyan of Zhanglong Expressway, of which the left stony slope of Kushaxi Viaduct 23-34 (K68 + 470 ~ K68 + 570) is more than 70 meters long and 140 meters long. The slope area is about 5000 square meters for the gray sandstone, weakly weathered stone, such as the use of ordinary reinforced concrete spray anchor can stabilize the slope, but with the surrounding natural ecological environment is not coordinated, affecting the overall appearance of the highway landscape; such as the use of ordinary network Spraying grass spraying construction technology, due to the low content of organic matter in abandoned soil, poor fertility, grass species difficult to attach to the slope, can not grow normally.