alluvial meadow soil

The notions of a weak Hopf algebra and a smash product over weak Hopf algebra are Introduced.

介绍并研究了弱Hopf代数及其上的冲积概念和性质。

In this paper we study the concept of smash products over weak Hopf algebras and investigate their properties.

本文研究了弱Hopf代数上的冲积并讨论了它约性质。

We prove that the smash product A#H is of the same weak global homological dimension as A, provided that H~* is unimodular and there is a trace one element in A.

当H~*是幺模且A中存在迹为1的元素时,本文证明冲积A#H与代数A的弱整体维数相等。

Reservoir forming characteristics on the alluvial fan of Xinkai-Dongjiagang slope belt;

新开—董家岗斜坡带冲积扇体成藏特征

Discussion on issues related to the design of bridge site at the alluvial fans in the west and middle parts of Inner Mongolia Autonomous Region;

对内蒙古自治区中、西部山前冲积扇桥位设计几个问题的认识

Comparison between agricultural Land on alluvial fans at Qilian Mountain,Helan Mountain and Lüliang Mountain regions;

祁连山、贺兰山与吕梁山山前冲积扇上的农地对比

Research results are as following:the shaft lining is vertically compressed during dewatering aquifer in alluvium,and relative tensile strain is caused by Poisson′s effect.

为掌握冲积层疏排水及注浆加固地层过程中井壁的变形规律,开展井壁变形实测研究,获得如下规律:在冲积层疏排水过程中,井壁竖向受压,竖向压应变随疏水层水压下降而增大,与此同时井壁环向因泊松效应产生相对拉应变;相对于每次注浆前的初始状态,在注浆过程中井壁内缘有两个水平切向受拉区和两个水平切向受压区,受拉区或受压区的圆心角为90°左右,距注浆点最近和最远的两个区域受拉;注浆使井筒周围土层抬升,使井壁在竖向相对受拉,缓释了井壁内的压应力。

The simulation tests were carried out to study the variation of the vertical additional force acted on shaft lining by surrounding soils during dewatering of alluvium by means of multi-function rig in vertical shaft.

利用大型竖井模拟试验台,对冲积层疏排水过程中立井井壁受到的竖直附加力的变化规律开展了模拟试验研究。

The burying characteristic of alluvium in Zhaogu No.

对赵固一矿冲积层埋藏特点进行了分析,采用理论与实践相结合的分析方法,对设计基本参数进行优化,并按强度条件和变形条件设计了冻结壁厚度、安全掘进段高度、冻结孔布置方式和深度。