| 1. | The formation mechanism of ground fissure in datong city 大同地裂缝灾害形成机理 |
| 2. | Datong city ; tectonic stress ; ground fissure 大同市构造应力地裂缝 |
| 3. | The cause of testonic ground fissures and the seismic exploration 构造地裂缝的成因与地震勘探 |
| 4. | Relation between ground fissure formation and ground water mining in urban datong 大同市区地下水开采与地裂缝形成的关系 |
| 5. | Finally , three dimensional land subsidence model should be develope in which horizontal displacement and ground fissures are considered 最后,建立三维沉降模型,考虑水平位移和地裂缝问题。 |
| 6. | Yet in letting go , it seems i created a break between my former and current selves that isn ' t so easily bridged 然而,在”松手放弃“时,似乎我在之前的”我“和目前的”我“之间造成了一个不那么容易弥补地裂缝。 |
| 7. | At last analyzing the hazards of ground fissure of hebei plain and harmful status quo , briefly estimating the ground fissure hazards of hebei plain 分析了河北平原地裂缝灾害特征及危害现状,对河北平原地裂缝灾害进行了评估。 |
| 8. | Permafrost fracture and ice fracture are both the result of freezing expansion without evident relation to tectonic deformation and regional structures 冻土裂缝和冰裂缝属外营力成因地裂缝,是冻土与冰层不均匀融冻变形的重要表现形式。 |
| 9. | Utilizing enough ground fissures datum , the tectonic stress field via finite element method and the grading of the active chances of ground fissures , forecasting the development of ground fissure 利用河北平原地裂缝资料、有限元反演河北平原构造应力场及地裂缝易发程度区划,对地裂缝的发展进行了预测。 |
| 10. | Firstly , three dimensional flow model should be adopted so as to establish equations for aquitards and consider heterogeneity of aquitards , in which the values of parameters vary with subsidence of soil layers 如何描述引起地裂缝的水平位移,分两步进行的耦合不合适,要做到水流模型与沉降模型的真正耦合等八个方面的步骤。 |