跨断层牛顿力监测系统超大长度锚索综合施工技术  

Comprehensive construction technology for super‑long anchor cables for the cross‑fault Newton force monitoring system

作　　者：郝峰 李存峰 HAO Feng;LI Cunfeng(Shandong Provincial No.4 Institute of Geological and Mineral Resources Survey,Weifang Shandong 261021,China)

机构地区：[1]山东省第四地质矿产勘查院,山东潍坊261021

出　　处：《钻探工程》2021年第5期88-95,共8页Drilling Engineering

基　　金：国家自然科学基金项目“基于界面牛顿力测量的双体灾变力学模型研究”(编号:51304210、41502323、51404278)。

摘　　要：基于“界面牛顿力测量的双体灾变力学模型”建立的NPR锚索监测系统,已在多个滑坡现场得到应用,但用于地震预警与科学研究的超大长度锚索跨断层牛顿力监测系统在国内尚属首次。结合山东省昌邑市地震局CY-1号文山跨断层牛顿力监测站Ø150 mm、自由段长240 m、总长300 m的NPR锚索施工实践,介绍了松散卵砾石、断层破碎岩等复杂地层小入射角大口径超长度绳索取心勘探、跟管钻进、多性能泥浆护壁、分级扩孔、“绳索取心钻杆+定位片+钢绞线束+反丝解脱接头+导向锚固头”下索注浆一体化系统等综合施工技术,可供类似工程借鉴。The NPR anchor cable monitoring system based on the two‑body catastrophic mechanics model for interfacial Newton force measurement has been applied at many landslide sites.However,it is the first time in China that the cross‑fault Newton force monitoring system for super‑long anchor cables is used for early earthquake warning and scientific research.This paper,in regard to the construction of NPR anchor cables with a diameter ofØ150mm,a free length of 240m and a total length of 300m for Wenshan Cross‑fault Newton Force Monitoring Station CY-1 of the Seismological Bureau of Changyi city,Shandong province,introduces the comprehensive construction technologies made up of small incidence angle,large diameter and super long hole core drilling,casing while drilling,multi‑performance mud wall protection,stepped borehole reaming,and the integrated cable placing and mud injection system of“wireline drill pipe+locating plate+steel strand+connector release with female thread+guiding anchor head”for such complex strata as loose pebbles and broken rocks.

关 键 词：牛顿力监测系统 NPR锚索 超大长度锚索 绳索取心钻进 跟管钻进 分级扩孔 

分 类 号：P634[天文地球—地质矿产勘探] P315.7[天文地球—地质学]