介绍了该矿采用的高强锚网索一次支护、长环形支架二次支护以及壁后注浆的联合支护技术。

This paper introduced a combined supporting technology, including first supporting, high-strength bolt-net-cable supporting, second supporting, long ring support and grouting behind support.

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最后，利用人工神经网络原理，对其支护参数进行了研究，并提出了利用离散元来确定二次支护时间的方法。

Lastly, timbering parameter is studied by utilizing Artificial NeuralNetwork (ANN), and put forward using Discrete Element Method (DEM) to confirm 2nd support time.

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然后，针对金川岩体的流变特征进行了理论研究，建立了非线性流变模型，通过拟合得出了最佳二次支护时机；

Then, theoretical study was carried out on the rheology of Jinchuan rock mass and a nonlinear rheological model was established. The best secondary support time was found by fitting.

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