目前,山东省尚无分层标建设的专业规范,针对不同深度分层标,尤其是深度较大分层标,用以明确其标杆结构、标组组成等.施工流程、标体结构的不合理导致使管材浪费,一定程度上增加了分层标的监测误差及建设成本.本文以鲁北平原深部砂岩热储沉降监测分层标组为例,对分层标选址、分层标结构、标桩个数、深度确定等进行阐述,探究分层标结构的合理性,对类似地层结构的分层标建设具有指导作用,对地质灾害监测具有重要意义.

利用沼渣和硫酸亚铁对含铬土壤进行共处置,在初步优化处置工艺参数后对共处置的协同效应进行验证,并通过XPS分析和微生物群落分析揭示了协同效用机理.结果表明,沼渣和硫酸亚铁共处置含铬土壤可实现土壤Cr(VI)含量低至未检出(检出限0.2mg/kg),优于硫酸亚铁处置法.共处置还原速率高于沼渣单独处置.微生物群落结构分析表明共处置组别细菌群落丰度与多样性高于沼渣单独处置,共处置土壤铬还原菌的相对丰度明显提高.此外,共处置组别内铁还原菌和硫酸盐还原菌的相对丰度也显著提升.通过XPS分析,共处置后的土壤中存在Fe(Ⅱ)、亚硫酸盐和硫化物,结合微生物群落分析结果,证实了铁和硫催化微生物还原六价铬过程.本研究为低碳型高浓度Cr(VI)污染土壤的治理提供新的思路.

通过分析广饶县多年来的浅层地下水水质监测资料,研究总结了该区浅层地下水水化学类型及主要水化学组分的动态演化特征.研究表明,南部淡水区水质普遍有恶化趋势,4个监测点中有3个阴离子类型已经或已出现由HCO3型转变为HCO3·Cl型的趋势,且矿化度、氯离子含量普遍有升高趋势,主要与浅层地下水降落漏斗的形成有关.

Study on land consolidation benefits is an important part of land consolidation theory and prac- tices. It is also a subject which is concerned by experts in the field of land science. Combining with natu- ral, social and economic conditions, and present condition of land use in Zhenglu town of Shanghe county, social, ecological and economic benefits of land development projects have been analyzed. It is pointed out that land consolidation should realize the maximum combination of social, ecological and economic bene- fits. Thus, it will promote the sustainable development of rural economy.