软煤

Tiefeng rock tunnel is a control project in Wanzhou-Kaixian expressway.The length of the tunnel exceeds 6?000m.The geological conditions of the tunnel are very complex,including groundwater ingression,firedamp,gypsum strata,soft rock deformation, rock outburst etc.The construction is difficult.Some construction methods are studied for Tiefeng rock tunnel to pass the complex zone mentioned above.

铁峰山2号隧道是重庆万-开高速公路控制性工程之一，隧道左右线长度均超过6 000m，隧道穿越的地层复杂，存在突水、煤层瓦斯、煤巷采空区、石膏岩地层、软岩变形、岩爆等不良地质现象，工程地质条件极为复杂，施工难度大，施工防护要求高。

Broken only meet its performance than the soft coal and stripping of the broken, use was limited, can not meet the requirements of the use of mines.

其破碎性能仅能满足煤及较软剥离物的破碎，使用受到了限制，不能满足矿山使用要求。

A soft sensor of coal load measuring based on chaos optimal BP neural network is constructed in DPU.

利用混沌运动初值敏感性，能在一定范围内按其自身规律不重复的遍历所有状态获取全局最优值的特点，在电厂现有的DPU中编程实现基于混沌优化BP网络的中速磨存煤量软仪表。

In the meantime, measuring expansion energy of initial releasing gas of soft coal in Ma jia gou 0521 and absorb constant and remains gas content.

同时，对马家沟矿0521软分层的煤样进行了初始释放瓦斯膨胀能试验及吸附常数和残余瓦斯含量的测定。

Broken only meet itsperformance than the soft coal and stripping of the broken, use waslimited, can not meet the requirements of the use of mines.

其破碎性能仅能满足煤及较软剥离物的破碎，使用受到了限制，不能满足矿山使用要求。

A soft, brownish-black coal in which the alteration of vegetable matter has proceeded further than in peat but not as far as in bituminous coal .

褐煤一种褐色软质煤，植物性物质的变化程度比泥煤重但比烟煤轻

Affected by the backfilling, the tangential stress of shotcrete has a tendency is for pressure stress to be tensile stress; it is dangerous to induce the axial cranny.

对照现场实际，在近水平煤系地层中修建隧道，如有厚层硬岩层控制，只要对局部软岩层加强支护控制，是可以保证围岩的整体稳定的。

During this research, detail test and analysis proved that vibration signal of ball mill can represent coal level of the ball mill and steel balls distribution. The test result could help to resolve a main problem of ball mill load measurement. The intelligent scheme for pulverizing system which was based on multi-sensors fusion technique as well as the intelligent control method was given in the thesis.

本文通过大量的分析研究和现场试验，通过对球磨机振动信号进行频谱分析，监测磨筒存煤量和钢球球径分布情况，初步解决了球磨机测控中一个关键问题；在此基础上，采用软测量、多传感器信息融合技术，引入神经网络模型等方法，并考虑与电厂DCS和计算机信息系统的连接，对智能化球磨机制粉系统进行了总体设计，在技术上有所创新。

Company's existing electrical products and machinery processing production capacity: Mine QBZ series of mine flameproof vacuum electromagnetic starter, QJZ series of mine Flameproof and nature of security vacuum electromagnetic starter, QJZ series of mine flameproof and intrinsically safe Vacuum-mobile electromagnetic starter, QJZ series of mine flameproof and intrinsically safe exchange of soft / straight starter, PBG1 series of high-pressure mine explosion-proof vacuum distribution equipment, KBZ series of mine flameproof vacuum Feed Switch, the coal mine explosion-proof electric drill, lighting signal integrated protection device, KJP-belt machine comprehensive protection and GCS, GGD Series高低压开关cabinet, various types of distribution boxes, large and medium-sized motors, such as launch counter.

公司现有电器产品及机械加工制作能力：矿用QBZ系列矿用隔爆型真空电磁起动器、QJZ系列矿用隔爆兼本质安全型真空电磁起动器、 QJZ系列矿用隔爆兼本质安全型手提真空电磁起动器、QJZ系列矿用隔爆兼本质安全型交流软/直起动器、PBG1系列矿用隔爆型高压真空配电装置、 KBZ系列矿用隔爆型真空馈电开关、矿用隔爆型煤电钻、照明信号综合保护装置、 KJP型皮带机综合保护器及GCS、GGD系列高低压开关柜、各类配电箱、大中型电机、启动柜等。

Based on the experimental results of axial strain, dilatancy capacity and volumetric strain of two kinds of rocks under zero confining pressure, some new knowledge has been gained.

首次采用&零围压单轴试验&对煤系地层两种岩石试样的剪胀力进行了系统测定及分析，得到一系列新的认识，对深入研究软岩巷道剪胀变形压力以及建立岩石类材料本构方程提供了实验依据，开拓了新的研究思路

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。