The measurements of ground stresses by using the hydraulic cracking method within the deep boreholes were proceeded at the Qinling extra long tunnel district.
秦岭特长隧道地区采用水压致裂法进行了深钻孔的应力测量。
Coal mining-induced cliff rock cracking and collapse enhanced hydraulic connection between the landslide and the cliff, indirectly increased the precipitation area of the landslide.
采煤活动诱发的危岩体开裂和崩塌，加强了滑坡体与危岩体的水力联系，间接扩大了滑坡体的受雨面积。
Hydraulic pier structures are widely used in the construction of sluices, culverts and earth-retaining walls. Cracking of hydraulic piers becomes very common in hydraulic project construction.
水工墩墙结构广泛分布于水闸、涵洞、挡土墙等水利工程中，水工墩墙开裂已成为水利工程建设的一个通病。
Cracks of different levels exists in hydraulic tunnel concrete liner. The prevention of liner concrete cracking at tailwater tunnels and measures on different levels cracking are discussed in detail.
水工隧道混凝土衬砌均存在不同程度的裂缝，本文介绍了尾水隧洞衬砌混凝土裂缝预防和不同类型裂缝的处理办法。
We normally use the punch or hydraulic machine to expand the steel tube, but since the impetus and velocity is difficult to control, the cracking rate of expanding the steel tube reaches to over 10%.
钢管扩管通常采用冲床或液压机来加工，但由于冲力和速度难以控制，扩管破裂率达10%以上。
The simulation results show that, the extension of priority valve cracking time, shortening tube length and increasing tube diameter will be helpful to reduce the hydraulic impact.
仿真结果表明，通过增大优先阀开启时间，适当缩短管路长度和增大管径能够有效降低液压系统的液压冲击现象。
The simulation results show that, the extension of priority valve cracking time, shortening tube length and increasing tube diameter will be helpful to reduce the hydraulic impact.
仿真结果表明，通过增大优先阀开启时间，适当缩短管路长度和增大管径能够有效降低液压系统的液压冲击现象。
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