污染场地原位立体修复工艺研究  

In⁃situ three⁃dimensional remediation technology of contaminated sites

作　　者：孔令镕 王瑜[1,2] 刘宝林 王志乔[1,2] 冯超 KONG Lingrong;WANG Yu;LIU Baolin;WANG Zhiqiao;FENG Chao(School of Engineering and Technology,China University of Geosciences(Beijing),Beijing 100083,China;Key Laboratory on Deep GeoDrilling Technology,MNR,BeiJing 100083,China)

机构地区：[1]中国地质大学(北京)工程技术学院,北京100083 [2]自然资源部深部地质钻探技术重点实验室,北京100083

出　　处：《钻探工程》2023年第S01期502-508,共7页Drilling Engineering

基　　金：国家重点研发计划“多分支水平井导向钻进与精准注入机具研制(编号:2018YFC1802404)”;高精尖学科建设项目“城市地质环境与工程”。

摘　　要：我国土壤地下水污染已呈现从点状污染向带状和面状污染发展的态势,因原位注入方法无需开挖、扰动小、成本低,已成为场地污染修复的发展热点和方向。目前国内关于药剂喷射注入修复技术方面的研究十分缺乏,无法满足场地污染治理的需求。针对传统修复药剂投放工艺对地面扰动大、钻孔工作量大的问题,在对污染场地典型污染羽和污染物进行归纳分析的基础上,针对不同形态的污染羽设计了垂直井、水平井和多分支井工艺,提出了点-面结合的药剂原位精准喷射注入工艺,通过场地试验研究,初步形成了原位注入立体修复技术方法,以期实现污染地层的精准高效注入和大面积修复,为污染场地高效、精准、环保原位修复奠定基础。Soil and groundwater pollution in China has shown a trend of development from point pollution to zonal and planar pollution.Because the in‑situ injection method has the features of no need to be excavation,small disturbance and low cost,it has become a development hotspot and direction of site pollution remediation.At present,a lack of research on the remediation technology of chemical injection is made,which can not meet the needs of site pollution control.Aiming at the problems of large ground disturbance and large drilling workload caused by the traditional remediation agent delivery process,an in‑situ precise injection process of point‑surface combination was proposed through field test research in hope to achieve accurate and efficient injection,large‑area remediation of contaminated strata,lay a foundation for efficient,accurate and environment friendly in‑situ remediation of contaminated sites.

关 键 词：污染场地 原位修复 立体修复 污染羽 多分支水平井 

分 类 号：P634[天文地球—地质矿产勘探] X53[天文地球—地质学]