邻桩爆破引发桩砼裂隙分析及防止措施

Study on Fracture in Concrete Produced by Near Pile Balsting

文章根据邻桩周边眼爆破应力波入射砼和叠加原理 ,计算了砼应力场的最大值 ,获得不同桩径、围岩性质、不耦合系数、砼龄期和不同单响药量条件下 ,产生素砼爆生裂隙的桩间距。

According to the principle of superimposed stress and stress wave refracted into concrete made of near pile blasting, calculated maximum stress in concrete, the distance between piles producing fracture in concrete has been recommended by different diameter of pile, rock properties, no coincidence coefficient of cartridge with post hole,tine hardness of concrete and single stage charge.