Based on the theory of quasi-static explosion gas dilation and the principle of rock fracture mechanics, Brittle rock fracture model is developed for notch blast with non-coupled charge explosion.

基于准静态爆生气体膨胀和岩石断裂力学理论，建立了不耦合装药刻槽爆破时的脆性断裂爆破模型。

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The main difficulties are how to deal with the expansion of explosion gas products in state of high pressure and temperature, and the interaction of blast waves and structural responses.

数值研究的难点表现为：高温、高压爆炸气体产物的膨胀和结构的动力学响应问题。

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The second factor is the explosion in gas output in the U.S. caused by the shale gas boom.

FORBES: Alaska's Plans To Export LNG To Asian Markets Is Huge For Oil And Gas Majors

Investigators are trying to determine whether the explosion was gas-related, said Robert Kuehn, an inspector for the Brentwood Fire Department.

WSJ: Toddler Dies in Explosion

The benefits of the shale gas explosion include the newfound abundant supply which will provide more than enough natural gas to meet U.S domestic consumption needs and provide an expectation for relatively low natural gas prices in the future.

FORBES: Surprise Side Effect Of Shale Gas Boom: A Plunge In U.S. Greenhouse Gas Emissions