井巷工程14立井井筒的延伸.ppt

井巷工程;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;井筒延深施工方案的选择，应满足以下要求： 1）在延深过程中，应保证矿井生产正常进行，尽量避免生产与延深工作互相干扰； 2）应尽量利用已有的或永久性的井巷、硐室和设施为延深工作服务，减少临时工程量，缩短准备工期，降低矿井延深投资； 3）在延深过程中必须保证工作人员的安全，并应尽量缩短停止生产提升的时间。;第一节 利用辅助水平廷深井筒 ;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;一、辅助暗井位置及辅助水平标高的确定 ;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;㈡辅助水平标高的确定;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;二、延深辅助巷道和硐室布置 ; 另一种是一条辅助暗斜井，主、副井共用一个辅助水平，如图13-5所示。 ;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;三、井筒施工设备布置 ㈠井内施工设备的布置与悬吊 ; 为了减少硐室开凿工程量，简化天轮平台布置，应尽量减少悬吊施工设备用的凿井绞车的台数，为此可采用单绳悬吊管路(图13-7)或井壁固定管路(图13-8)等方式。 ;㈡提升设备布置 主井提升机和主、副井凿井绞车一般都布置在延深辅 助水平。李二矿延深时副井提绞设备布置如图13-9所示。 ;四、施工过程 ⑴自生产水平向下掘进辅助暗斜井，而后施工辅助水平巷道和硐室。 ⑵施工提升间。提升间是指自辅助水平至保护岩柱或人工保护盘的这一段井筒。该段井筒一般采用普通反井法施工。; ;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;第二节 利用延深间延深井筒 ; 1．利用顶留有延深间布置施工设备 原井筒永久断面设计时，预留出延深位置，待井筒延深时，可直接 布置施工设备，直接与地面相通。它因受断面限制，只能布置小型提升容 器，施工速度慢。 ;㈡延深井筒纵断面