碾压式沥青混凝土防渗技术应用与探讨

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摘要：KZ囚大坝是在新禮寒冷地区建成的首座碾压式沥青混凝土心墙砂乐石坝。结合其设计和燕工
过程，介绍了该坝体结构与防渗体布置，心墙与坝基防渗体的连接和坝基处理。基于大坝完建期观测
资料和坝体三帷有限元应力应变静力计算结论，分析了大坝施工对运行状态的影响，并研究了沥青混
凝土心墙坝在寒冷地区的施工可行性，旨在为新疆水利水电工程推广应用压式沥青混凝土心墙防渗
技术积票经验。
关键词：暖压沥青混凝土；防渗技术；防渗心墙；设计应用；严寒地区；新饕
中图分类号：TV641.4(245)
文献标识码：B
文章编号：1000-0860(2012)04-0086-05
Discussion and application of rolled asphalt concrete anti-seepage technique
ZHANG Hongjun
(Xinjiang Survey and Design Instiute of Water Resources and Hydropower,Orimqi 830000.Xinjiang.China)
Abstract:KZJ Dam is the first sand-gravel-fill dam with rolled asphalt concrete core wall located in the cold region of Xin-
jiang The layout of the dam structure with its anti-seepage body,the joint between the core wall and the anti-seepage body in
the dam foundation and the treatment on the dam foundation are described herein in accordance with its design and construe-
tion.Based on the observed data and the conclusion from the 3-D finite element stress-strain statie calculation made during its
completion period,the impact from the construction on the operation of the dam is anslyzed,and then the feasibility of the con-
struction of the dam with asphalt concrete core in a cold region is also studied,soas to accumulate the experiences for promo-
ting the application of the rolled asphalt concrete anti-seepage technique to the construction of the water resources and hydro-
power projects in Xinjiang
Key words:rled aphalt concrete:anti-soepage technique;anti-sepage core wal:design and application;old regon:Xinjiang
高64m,坝顶长度355m,坝顶宽度8m,上游围堰与
1工程概况
坝体结合，上游坝坡1：21~1：25，下游综合坝坡
K☒大坝位于新疆某河道峡谷口上游3km处，
1:2,设之字型上坝道路。坝基坐落在基岩面上，心墙
库容1.67亿m3,属于Ⅱ等大(2)型综合利用水利枢
基座建基在弱风化基岩面上，基础进行帷幕灌浆防渗。
纽工程。坝址处河谷呈“”型，河床宽120m,覆盖
2防渗体结构设计
层厚1~3m,下覆基岩为花岗片麻岩，两岸山体基
岩裸露，库坝区无危及工程安全的地质构造，地形地
2.1心墙轴线布置
质条件较好。拦河大坝垂直河道布置，右岸坝肩下布
沥青混凝土心墙一般布置在坝体横断面中间，使
置泄洪兼导流洞，岸坡上布置开散式溢洪道，右岸坝
府下布置发电引水系统，岸坡边布置灌凝引水隧洞。
妆稿日期：2011-09-06
大坝采用限压式沥青混凝土防渗心墙砂砾石坝型，圳
作者简介：张宏军(1963一)，男，高级工程0，主任工程师。