对称四极电测深法在南通地区浅层咸淡水划分应用

The application of symmetric quadrupole electrical sounding in that division of shallow salty and fresh wat in Nantong area

南通市东临黄海,南濒长江,地下水丰富,但咸淡水层分布不均,埋深也各不相同。用对称四极电测深法对南通沿海松散沉积层的浅层咸淡水的分布和埋深情况划分是有效的,对深层咸淡水的分布和埋深,由于受其上层较厚咸水层的屏敝作用,效果虽不佳,但有参考意义,研究结果为同类工程勘探具有一定的借鉴作用。

Nantong city faces Huang Hai in the east and Yangtze River in the south.The groundwater is rich,but the distribution of salty and light water layer is uneven,and the buried depth is different.The symmetrical quadrupole electric sounding method is effective for the distribution and buried depth of shallow brackish water in the loose sedimentary layer along the coast of Nantong.The results are of reference for similar engineering exploration.