探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
EXPLORATION ENGINEERING (DRILLING & TUNNELING)
2013年
3期
75-77
,共3页
边坡支护%预应力锚索%超灌浆%控制技术%两河口水电站
邊坡支護%預應力錨索%超灌漿%控製技術%兩河口水電站
변파지호%예응력묘색%초관장%공제기술%량하구수전참
slope support%pre-stressed anchor cable%super grouting%control technique%Lianghekou hydropower station
两河口水电站公路边坡开挖后揭露的局部地质情况为强风化、强卸荷反倾薄层~中厚层砂板岩,节理裂隙发育,围岩破碎,裂隙张开,松动卸荷较强烈,设计对该边坡增加框格梁及无粘结钢绞线压力分散型预应力锚索进行加强支护.主要介绍在地质情况差的区进行预应力锚索灌浆施工时的超灌浆控制技术.
兩河口水電站公路邊坡開挖後揭露的跼部地質情況為彊風化、彊卸荷反傾薄層~中厚層砂闆巖,節理裂隙髮育,圍巖破碎,裂隙張開,鬆動卸荷較彊烈,設計對該邊坡增加框格樑及無粘結鋼絞線壓力分散型預應力錨索進行加彊支護.主要介紹在地質情況差的區進行預應力錨索灌漿施工時的超灌漿控製技術.
량하구수전참공로변파개알후게로적국부지질정황위강풍화、강사하반경박층~중후층사판암,절리렬극발육,위암파쇄,렬극장개,송동사하교강렬,설계대해변파증가광격량급무점결강교선압력분산형예응력묘색진행가강지호.주요개소재지질정황차적구진행예응력묘색관장시공시적초관장공제기술.
The local geological conditions are strong weathered, strong unloading anti-dip thin layer-middle-thick layer sand slate with joints and fractures developing, broken surrounding rocks, open fissures and serious loose unloading in road slope excavation at Lianghekou hydropower station.The frame beams and non-cohesive steel strand dispersion-type pre-stressed anchorage cable were designed to reinforce the side slope.The paper describes the super grouting control technique for pre-stressed anchor grouting in poor geological conditions.
