CAJ | 학술논문

设计了一套静力触探模型箱试验装置，该装置可以在模型箱水平面内任意位置进行贯入试验，贯入速率在一定范围可控，贯入倾角可调节。将该装置用于 TJ-1模拟月壤静力触探力学特性的研究，试验结果表明：地基表层模拟月壤发生刺入剪切破坏；贯入阻力随贯入深度的增加而增加；探杆周围同一深度处土体的水平土压力表现出轴对称特征，其值在探头靠近土压力盒过程中逐渐增大至最大值，后随探头远离土压力盒又逐渐减小至0，且不同深度土体水平土压力峰值随贯入深度增加而增大；贯入点正下方土体的垂直土压力随贯入深度的增加而增加，主要影响范围约为距探头200 mm处。基于以上试验研究，表明该模型箱的设计是合理的，且TJ-1模拟月壤力学特性的研究成果能够为将来涉及到TJ-1模拟月壤的航天试验提供必要的技术参考。
설계료일투정력촉탐모형상시험장치，해장치가이재모형상수평면내임의위치진행관입시험，관입속솔재일정범위가공，관입경각가조절。장해장치용우 TJ-1모의월양정력촉탐역학특성적연구，시험결과표명：지기표층모의월양발생자입전절파배；관입조력수관입심도적증가이증가；탐간주위동일심도처토체적수평토압력표현출축대칭특정，기치재탐두고근토압력합과정중축점증대지최대치，후수탐두원리토압력합우축점감소지0，차불동심도토체수평토압력봉치수관입심도증가이증대；관입점정하방토체적수직토압력수관입심도적증가이증가，주요영향범위약위거탐두200 mm처。기우이상시험연구，표명해모형상적설계시합리적，차TJ-1모의월양역학특성적연구성과능구위장래섭급도TJ-1모의월양적항천시험제공필요적기술삼고。
An experimental apparatus for calibration chamber penetration test is designed. The device can fulfill the cone penetration test at any point on the chamber plane;and it can also accomplish the inclined cone penetration test with different inclined angles under the controlling penetration velocity. The apparatus is used to investigate the mechanical properties in the vertical cone penetration test for TJ-1 lunar soil simulant. The test results indicate:(1) The superficial layer of TJ-1 lunar soil simulant ground occurs shear failure. (2) The cone tip resistance increases with the increasing of penetration depth. (3) The horizontal earth pressure increases to maximum as the cone approaching to the soil earth cell and decreases to zero when passed by;the maximum value of each layer increases with the penetration depth; the horizontal earth pressure also appears axisymmetric property. (4) The vertical earth pressure under the penetration point increases with the penetration depth. It is shown that the design of calibration chamber is rational based on the experimental research. The study of mechanical property of TJ-1 lunar soil simulant is of great importance to the corresponding experiments related to such material.