李家河碾压混凝土重力坝枢纽工程设计及ANSYS建模

毕业设计（论文）毕业设计说明书

李家河碾压混凝土重力坝枢纽工程设计

及ANSYS建模

摘要

李家河水库工程位于西安市蓝田县境内，水库枢纽位于灞河的一级

支流辋川河中游河段，是解决西安市东部用水紧张的骨干供水工程之一，

工程由水库枢纽和输水渠道两大部分组成。工程任务主要以西安市城东

区城镇供水为主，兼有发电。本次毕业设计分析了坝址的地形和地质条

件，对比几种坝型最终选取碾压混凝土重力坝,碾压混凝土坝与常态混凝

土坝相比,工艺程序简单，可快速施工，缩短工期；碾压混凝土坝可不设

纵缝，节省了模板和接缝灌浆等费用。对比上下两条不同的坝轴线，在

其它条件类似的情况下，从抗滑稳定的角度考虑，最终选取了上坝线。

最后还进行了枢纽布置：枢纽建筑物包括泄水建筑物、挡水大坝、底孔、

供水管道和坝后式电站等。坝体剖面的稳定和应力计算时，荷载组合取

了基本组合和特殊组合两种不同的情况，以正常蓄水位时的荷载组合作

为基本组合,以地震荷载作为特殊组合。设计中选取了坝基面作为计算截

面，对坝体的稳定和强度都依据DL5108-1999《混凝土重力坝设计规范》

及SL319-2005《混凝土重力坝设计规范》分别进行计算验证，在这两种

情况下坝体的稳定和强度都能满足要求。本设计对溢流坝段除进行体型

设计外，还进行了详细的水力计算，并进行了溢流坝面的水面线计算。

此外，本设计对泄洪排沙底孔进行了详细的体型设计，确保了大坝的泄

洪能力及稳定条件。最后，对于坝址区的地基，进行了固结灌浆及帷幕

灌浆，保证了坝体的稳定和防渗，确保了工程的安全。本次设计的主要成果有：设计说明书1份，设计CAD图纸7张以及其他相关附图附表等。

关键词：碾压混凝土重力坝；溢流坝；底孔；挑流消能；枢纽布置

Li Jia River roller compacted concrete (RCC)gravity dam project design and modeling of ANSYS

ABSTRACT

Li Jia River Project is located in Lantian Country of Xi'an, the project is consisted of reservoir complex and water channel. The reservoir is for daily life water-based and compensation for flood control, as well as power generation. Analyses and of the dam site of the terrain and geological conditions, comparing several dams, the graduate design finally select the RCC dam and the down dam axis and the general layout,Roller compacted concrete dam compared with the conventional concrete dam, process simple, quick construction, shorten the construction period. Buildings hub include the water-releasing structure, retaining dam, bottom hole, water pipeline and power plant, and so on. Later the overflow dam, shape of bottom hole and incorporated dissipater are designed. In order to ensure the safety of the dam, careful stability and stress calculation is made by material mechanic method, the load group conjunction basic combination and specially combined two kind of different situations, took the basic combination by the normal store water level time load combination; Takes the special combination by the earthquake load. In the design has selected the dam basic plane to take the computation section, and stable all carried on the computation to the dam body, the

result has all answered the purpose. At last, do the construction design for construction of the dam. The design of the dam foundation as the section, the dam stability and strength of DL5108-1999"concrete gravity dam design specification" according to SL319-2005 and "concrete gravity dam design specification" respectively are validated, the two cases in which the stability and strength can meet the requirements.The design of the overflow dam section in addition to the shape design, detailed hydraulic calculation are conducted, and the overflow of the water surface line calculation. In addition, the design of the detailed design of the body to release flood waters Desilting Bottom intake, ensure the ability to release flood waters and stability conditions of the dam. Finally, for the dam foundation, the consolidation grouting and curtain grouting, ensure the stability of dam body and impervious, ensure that the project safety.The main results of the design are: one design manual, seven design drawings and other related schedule, attached map and so on.

KEY WORDS：the RCC dam ；retaining dam ；overflow dam ；bottom hole；ski jump energy dissipation ；layout of hydro-project