tension fissure meaning in English

张拉裂缝
张裂缝

When the acoustic logging technique is used to determine the stress release rebound tension fissure plane of the dam foundation in the construction of such dam foundation , we should make an analysis of the anomaly and the geophysical trend surface so as to guarantee the reliability of the geophysical data and guide the change of the design and organize the construction
摘要在坝基施工过程中，利用声波测井方法确定坝基卸荷回弹张裂面应进行相对异常和地质物探趋势面分析研究，才能保证物探资料的可靠性及直接指导设计变更和施工组织。