CAJ | 학술논문

舟山与大陆联网工程螺头水道大跨越2基370 m高塔均位于海岛，基础坑底四侧采用掏挖嵌固形式，基础具有基坑深度大、掏挖净深大、开挖方量大等特点。为避免坑底掏挖对上部坑壁岩体产生破坏造成塌方，确保基坑成型质量及施工过程中的人身安全，结合基坑地质条件及成形特点，采用静态爆破掏挖施工工艺对这2基370 m高塔基础坑底进行施工。
주산여대륙련망공정라두수도대과월2기370 m고탑균위우해도，기출갱저사측채용도알감고형식，기출구유기갱심도대、도알정심대、개알방량대등특점。위피면갱저도알대상부갱벽암체산생파배조성탑방，학보기갱성형질량급시공과정중적인신안전，결합기갱지질조건급성형특점，채용정태폭파도알시공공예대저2기370 m고탑기출갱저진행시공。
The two 370-meter tower foundations of Luotou watercourse large crossing of Zhoushan-Mainland transmission project are located in sea islands. The four sides of foundation pits are excavated and embedded, and the foundations are characterized by deep foundation pit, large depth of excavation and large earthwork. In order to prevent landslide due to damage on rock of upper pit wall by excavation at the pit bottom and ensure forming quality of foundation pit and body safety during construction , the static blasting technology for exca-vation is adopted in construction of foundation pit bottom of two 370-meter towers by combining geological condition and forming character of foundation pit.