路基工程
路基工程
로기공정
SUBGRADE ENGINEERING
2011年
6期
124-126,129
,共4页
竖向岩石%锚杆基础%破坏形式%应变特征
豎嚮巖石%錨桿基礎%破壞形式%應變特徵
수향암석%묘간기출%파배형식%응변특정
vertical rock%bolt foundation%failure mode%strain characteristics
根据现场试验，从锚杆基础破坏前后的形态、地面隆起变形测量、裂缝展开测量等分析，研究燕山区强风化花岗岩和片麻岩中竖向锚杆基础的破坏形式；通过量测锚杆基础不同荷载条件下不同深度的应变，分析强风化岩体中的锚杆基础的应变特征；通过在同一荷载条件下对不同长度锚杆基础施加竖向荷载，得出该区域范围强风化花岗岩和片麻岩中竖向锚杆的最优长度经验值。为该竖向岩石锚杆基础的应用提供实践经验。
根據現場試驗，從錨桿基礎破壞前後的形態、地麵隆起變形測量、裂縫展開測量等分析，研究燕山區彊風化花崗巖和片痳巖中豎嚮錨桿基礎的破壞形式；通過量測錨桿基礎不同荷載條件下不同深度的應變，分析彊風化巖體中的錨桿基礎的應變特徵；通過在同一荷載條件下對不同長度錨桿基礎施加豎嚮荷載，得齣該區域範圍彊風化花崗巖和片痳巖中豎嚮錨桿的最優長度經驗值。為該豎嚮巖石錨桿基礎的應用提供實踐經驗。
근거현장시험，종묘간기출파배전후적형태、지면륭기변형측량、렬봉전개측량등분석，연구연산구강풍화화강암화편마암중수향묘간기출적파배형식；통과량측묘간기출불동하재조건하불동심도적응변，분석강풍화암체중적묘간기출적응변특정；통과재동일하재조건하대불동장도묘간기출시가수향하재，득출해구역범위강풍화화강암화편마암중수향묘간적최우장도경험치。위해수향암석묘간기출적응용제공실천경험。
According to site test, gneiss in Yanshan area is studied the failure mode of vertical bolt foundation in strongly weathered granite and through analyzing the form of bolt foundation before and after failure, surface upheaval and crack expansion. The strain characteristics of bolt foundation analyzed through measuring the strain in different depths under different loads. on different bolt foundations under the same load, the empirical value of the o in strongly weathered rock are Through applying vertical load ptimal length of vertical bolt in strongly weathered granite and gneiss within this area has been obtained, which provided practical experience for the application of vertical rock bolt foundation.
