论文部分内容阅读
使用掘进机开挖隧洞是地下工程快速施工的一项有效措施。其掘进速度的快慢主要取决于如下四个因素:1、地质状况所需开挖隧洞穿越的岩层种类;岩石的单轴抗压强度、f 值;沿洞线的地质节理方向及岩质发育程度;隧洞范围内的断层大小、数量、走向及其与洞线的交角大小,以及溶洞、暗河、地下水涌量等等情况。2、掘进机的性能与质量a.设计和能够达到的平均月进尺指标是否先进和合理?能否满足工程进度需要?b.掘进机主要参数如刀盘的功率、转
The use of tunnelling machines to excavate tunnels is an effective measure for the rapid construction of underground works. The speed of the excavation mainly depends on the following four factors: 1. The type of rock that the excavated tunnel needs to pass through in geological conditions; the uniaxial compressive strength and f value of the rock; the geological joint direction along the tunnel and the rock development The size, number, direction of the faults in the tunnel range, and the size of the intersecting angles between the faults and the caverns, as well as the caverns, dark rivers, groundwater surges, and so on. 2. The performance and quality of the roadheader a. Is the design and the average monthly footage that can be achieved advanced and reasonable? Can it meet the project schedule requirements? b. The main parameters of the roadheader, such as the power of the cutterhead, turn