绞吸挖泥船泥浆浓度的无放射源环保测量技术

泥浆浓度是绞吸挖泥船施工产量的关键参数，传统的测量技术因使用放射源而产生核辐射风险和环境污染问题。采用电学层析技术中的电阻层析成像（ERT）技术进行泥浆管道的浓度分布成像，利用电导率测算泥浆浓度，研制了一套泥浆浓度的新型无放射源测量装置，并进行了绞吸挖泥船实船应用试验。结果表明：该新型泥浆浓度测量装置与取样结果误差在3%以内；相对于传统放射源测量装置可靠性提高，环保性能更加突出。

Environmentally friendly mud concentration measurement technology of cutter suction dredger without radioactive source

Mud concentration is the key parameter of the construction output of cutter suction dredger,and the traditional measurement technology produces nuclear radiation risk and environmental pollution problems due to the use of radioactive sources.Using electric resistance tomography (ERT)technology in electrical tomography technology to conduct concentration distribution imaging of mud pipes,and using electrical conductivity to measure mud concentration,a new set of non-radioactive source measurement device for mud concentration is developed,and the application test of the device in the cutter suction dredger is carried out.The results show that the error between the new mud concentration measuring device and the sampling results is within 3%;compared with the traditional radioactive source measuring device,the reliability is improved and the environmental performance is more prominent.