CAJ | 학술논문

研究目的：随着国内高速公路、铁路及民航等工程建设步伐的不断加快，出现了很多推力巨大的工程滑坡。双排抗滑桩作为治理该类大型滑坡的有效措施得到了广泛应用，但对于双排抗滑桩的承载力和变形破坏形态等工作性能指标缺乏足够的认识。本文针对一个采用双排圆形抗滑桩支挡的堆积层滑坡原型，通过室内地质力学模型试验，研究双排抗滑桩的极限承载力及其变形破坏过程，供双排抗滑桩治理大型滑坡的应用参考。研究结论：（1）本次试验为三个阶段破坏性试验，前、后排桩在各个预定的试验阶段都产生了不同程度的断裂破坏，破坏形式以拉弯形态为主；（2）试验第一、三阶段的位移变化曲线呈明显的缓慢、快速和加速发展的三阶段特征，而第二阶段曲线呈线性特征；（3）土压力沿桩身的分布特征基本符合现行计算假定，由于桩间土体摩擦力的存在，前、后排桩的推力分布极不均匀，后排桩承担推力主要部分，土压力变化整体上分为缓慢发展、快速发展和衰减三个阶段；（4）该研究成果对双排抗滑桩治理大型滑坡的应用研究有着理论和实际意义。
연구목적：수착국내고속공로、철로급민항등공정건설보벌적불단가쾌，출현료흔다추력거대적공정활파。쌍배항활장작위치리해류대형활파적유효조시득도료엄범응용，단대우쌍배항활장적승재력화변형파배형태등공작성능지표결핍족구적인식。본문침대일개채용쌍배원형항활장지당적퇴적층활파원형，통과실내지질역학모형시험，연구쌍배항활장적겁한승재력급기변형파배과정，공쌍배항활장치리대형활파적응용삼고。연구결론：（1）본차시험위삼개계단파배성시험，전、후배장재각개예정적시험계단도산생료불동정도적단렬파배，파배형식이랍만형태위주；（2）시험제일、삼계단적위이변화곡선정명현적완만、쾌속화가속발전적삼계단특정，이제이계단곡선정선성특정；（3）토압력연장신적분포특정기본부합현행계산가정，유우장간토체마찰력적존재，전、후배장적추력분포겁불균균，후배장승담추력주요부분，토압력변화정체상분위완만발전、쾌속발전화쇠감삼개계단；（4）해연구성과대쌍배항활장치리대형활파적응용연구유착이론화실제의의。
Research purposes:As the accelerating pace of construction in domestic highway,railway and civil aviation, there are many engineering landslides with a huge thrust.Double -row anti -slide pile has been widely used as the effective measures of the large -scale landslide governance,however,the working performance of double -row anti -slide pile,such as bearing capacity and deformation failure pattern,was in the situation of lack adequate understanding. On the basis of the prototype of accumulation landslide governance with double -row anti -slide piles,the ultimate bearing capacity and deformation and failure process were studied through geomechanical model test. Research conclusions:(1 )The test plan for the three stages of destructive test was made firstly.The piles in front and back row have different degree of fracture damage in each scheduled trial stage,and the damage pattern is given priority to tensile and bending failure.(2 )The three stages characteristic of displacement curve is obvious such as the development of slow,fast,and acceleration in the first and third process of test.The linear trend curve is presented in the second test stage.(3)Soil pressure distribution along the pile is in line with the current calculation assumption.As a result of the existence of friction of soil between piles,the thrust distribution of front and back row piles is quite uneven,and the back row pile plays the key role in the aspect of thrust bearing.The change stages of soil pressure contain three parts of slow development,rapid development and attenuation as a whole.(4)The research result has important theoretical and practical significance to applied research of double -row anti -slide pile of large scale landslides control.