CAJ | 학술논문

以福建某坝基固结灌浆工程实例为研究对象，采用单孔、跨孔声波测试及地震波测试技术对灌浆前、后岩体纵波波速进行检测。采用弹性理论计算动弹性模量，研究灌浆前、后变形参数的变化；对Hoek-Brown准则进行修正，用波速计算Hoek-Brown 准则的强度参数，研究灌浆前、后强度参数的变化。研究结果表明，固结灌浆效果受岩体本身的可灌性控制，并受岩体结构影响。不同方向的固结灌浆效果是不同的，对于强风化岩体，垂直向固结效果优于水平向；对于具有缓倾结构面的中风化岩体，水平向固结效果优于垂直向。动弹性模量提高率与波速提高率呈二次函数关系。强风化岩的 m（为Hoek-Brown常数）和s（为与岩体质量有关的常数）值提高率与波速提高率均呈一次函数关系，中风化岩则均呈三次函数关系。研究成果对灌浆设计和施工有重要的指导意义。
이복건모패기고결관장공정실례위연구대상，채용단공、과공성파측시급지진파측시기술대관장전、후암체종파파속진행검측。채용탄성이론계산동탄성모량，연구관장전、후변형삼수적변화；대Hoek-Brown준칙진행수정，용파속계산Hoek-Brown 준칙적강도삼수，연구관장전、후강도삼수적변화。연구결과표명，고결관장효과수암체본신적가관성공제，병수암체결구영향。불동방향적고결관장효과시불동적，대우강풍화암체，수직향고결효과우우수평향；대우구유완경결구면적중풍화암체，수평향고결효과우우수직향。동탄성모량제고솔여파속제고솔정이차함수관계。강풍화암적 m（위Hoek-Brown상수）화s（위여암체질량유관적상수）치제고솔여파속제고솔균정일차함수관계，중풍화암칙균정삼차함수관계。연구성과대관장설계화시공유중요적지도의의。
Based on a dam foundation engineering in Fujuan province, single-hole acoustic test, cross-hole acoustic test and seismic wave test were carried out to detect the P-wave velocity of dam foundation rock mass before and after consolidation grouting. The elastic theory was used to calculate dynamic elastic modulus; and the change of deformation parameters before and after consolidation grouting were studied. A modified Hoek-Brown criterion was proposed to calculate the parameters in Hoek-Brown criterion. The results show that the consolidation grouting effect is controlled by the groutability of rock mass and effected by the rock mass structure. The consolidation grouting effects in different directions are different. For strongly weathered rocks, the consolidation grouting effect in vertical direction is better than that in horizontal direction. For medium weathered rocks with gently dipping discontinuous faces, the consolidation grouting effect in horizontal direction is better than that in vertical direction. The functional relationship between the increasing rate of dynamic elastic modulus and the increasing rate of velocity is quadratic. The functional relationship between the increasing rates of m, s (where m is Hoek-Brown parameter, s is parameter related to quality of rock mass) and the increasing rate of velocity for strongly weathered rocks are both linear and for medium weathered rocks are both cubic. It is of important significance for design and construction of grouting.