水利科技与经济
水利科技與經濟
수리과기여경제
2014年
11期
38-40
,共3页
堤坝%渗流管涌%耗散结构%机制
隄壩%滲流管湧%耗散結構%機製
제패%삼류관용%모산결구%궤제
the embankment and dam system%seepage piping%dissipation structure theory%me-chanical
通过对堤坝系统结构特征的分析，表明堤坝系统是一个由许多子系统组成的、复杂的开放系统，系统内部的相互作用是非线性的，在渗流作用下由近平衡态逐渐演化至远离平衡态，当外界条件的变化达到一定阀值时，可以形成有序的耗散结构。采用耗散结构理论系统分析了渗流管涌演化过程中耗散结构的形成机制。研究结果表明，堤坝渗流管涌演化过程经历了近平衡态、临界非平衡相变和远离平衡态3个阶段，并最终形成有序的耗散结构。最后通过对渗流过程中系统能量变化的分析，建立了系统的熵变模型，提出了渗流管涌稳定的临界条件。
通過對隄壩繫統結構特徵的分析，錶明隄壩繫統是一箇由許多子繫統組成的、複雜的開放繫統，繫統內部的相互作用是非線性的，在滲流作用下由近平衡態逐漸縯化至遠離平衡態，噹外界條件的變化達到一定閥值時，可以形成有序的耗散結構。採用耗散結構理論繫統分析瞭滲流管湧縯化過程中耗散結構的形成機製。研究結果錶明，隄壩滲流管湧縯化過程經歷瞭近平衡態、臨界非平衡相變和遠離平衡態3箇階段，併最終形成有序的耗散結構。最後通過對滲流過程中繫統能量變化的分析，建立瞭繫統的熵變模型，提齣瞭滲流管湧穩定的臨界條件。
통과대제패계통결구특정적분석，표명제패계통시일개유허다자계통조성적、복잡적개방계통，계통내부적상호작용시비선성적，재삼류작용하유근평형태축점연화지원리평형태，당외계조건적변화체도일정벌치시，가이형성유서적모산결구。채용모산결구이론계통분석료삼류관용연화과정중모산결구적형성궤제。연구결과표명，제패삼류관용연화과정경력료근평형태、림계비평형상변화원리평형태3개계단，병최종형성유서적모산결구。최후통과대삼류과정중계통능량변화적분석，건립료계통적적변모형，제출료삼류관용은정적림계조건。
By analysis the structural features of the embankment and dam system ,it shows that em-bankment and dam is a complex open system maded up of many subsystems , interactions within the system is non-linear ,it gradually becomes far away from the equilibrium state under the influence of seepage effect , when the external conditions changeand and reached a certain threshold , it can be formed ordered dissipative structures.The formation mechanism of the dissipative structures in the em-bankment and dam system is discussed by the dissipative structure theory.The results of the research indicate that the embankment and dam system is a complex open system.In the formative processes of the dissipative structure , the system goes through three stages -near equilibrium , critical transi-tions of non-equilibrium and far from the equilibrium -before it eventually develop an ordered dissi-pative structure.Lastly, a entropy model is established ,by analyzing the system entropy changes ,and the critical conditions of the stability of the piping seepage are put forth.
