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从本世纪７０年代开始，中国矿大以董方庭教授为首的支护研究小组，从研究开巷后围岩的状态入手，做了大量现场观测与科学实验研究工作。提出了围岩破裂过程中的岩方碎胀变形（碎胀力）是支护的主要对象，并把在围岩中发展的这个破裂区定义为围岩松动圈。本文介绍了现场实测数据及室内模型试验的结果，并进而进行了的理论分析研究，最后就支护对象、支护的作用、支护与围岩共同作用原理等的基本观点及现场实践验证的结果，做了扼要的概括。
Starting from the 70s of the last century, the support group led by Professor Dong Fangting from China University of Mining and Technology began with the study of the state of rock surrounding the roadway and made a large number of field observations and scientific experiments. It is proposed that the crushing deformation (crushing force) of rock during the rupture of surrounding rock is the main support and the rupture zone developed in the surrounding rock is defined as the loose ring of surrounding rock. In this paper, the field test data and the results of the indoor model test are introduced, and then the theoretical analysis and research are carried out. Finally, the basic view of the object of support, the role of support, the principle of interaction between support and surrounding rock, and field practical verification The results, made a brief summary.