高楼渡槽及溢流堰单位工程施工总结报告.doc

§1  工程概况

一、 工程布置
高楼渡槽，位于高楼乡高三村至下泽村之间，自进口至出口，原设计全长1281.41M，后因进出口地质原因，直峰架隧洞出口退后20M和下泽隧洞进口退后4M进洞，并将总干1+894.86至总干1+914.86和3+190.22至3+200改为明洞，因此全线长改为1295.36，自总干1+894.86至总干3+190.22。后因政策原因，将总干2+737.42—2+797.12段改为高楼倒虹吸，因此高楼渡槽实际全长为1235.66M。其进口与直峰架隧洞相接，出口与下泽隧洞相连，其中明洞段长20M，进口连接段长26.56M，槽身段长1233.8M(含59.7M长的高楼倒虹吸)，出口段长15M。渡槽设计流量36M3/S，加大流量39M3/S，坡降1/1500。进口槽身底高程16.44M，出口槽身底高程15.62M。
二、 槽身结构
槽身由59节槽身、59条仲缩缝和59节槽身盖板组成。槽身采用400#预应力砼简支梁结构，跨度19.9M。槽型为有拉杆加肋矩形槽，宽5.1M，高4.8M，边墙厚30CM，底板厚25CM，肋宽30CM，肋高70CM。预应力采用后张法施工，每侧边墙底部设一根10Φj15.24的270K级钢绞线束,其标准强度σyb=1860Mpa，锚下控制应力σkb=1209Mpa，张拉端采用XM-10锚具固定，固定端采用轧花锚固，525#水泥灌浆封孔。
三、 支承结构
支承结构采用钻孔灌注桩和排架二种形式。原
§ 1 Project Overview

First, engineering layout
High-rise aqueduct, located in the village to the next high-rise Township Middle School between Sawamura, from import to export, the original design full 1281.41M, after the geological reasons for the import and export, direct export back 20M peak frame tunnel and tunnel under the import back Ze 4M hole, and the Director-General to the Director-General 1 1 +894.86 +914.86 +190.22 to 3 +200 and 3 to Myeong-dong, so long across the board to 1295.36, from the Director-General to the Director-General 1 +894.86 3 +190.22. Later, because of policy reasons, the Director-General in paragraph 2 of +737.42-2 +797.12 to high-rise inverted, so the actual length of the aqueduct towers 1235.66M. The peak import and direct tunnel connecting aircraft, exports and tunnel under the Ze connected, which Myeongdong section chief 20M, import connection section chief 26.56M, slot figure long 1233.8M (with 59.7M long tall inverted), a long exit section 15M. Flume design flow 36M3 / S, increased discharge 39M3 / S, slope of 1 / 1500. Import Aqueduct invert 16.44M, export Aqueduct invert 15.62M.
2, Aqueduct
Aqueduct Aqueduct from the 59, 59 sec and 59 slot expansion joint cover body composition. Aqueduct by 400 # Prestressed Concrete Beams, span 19.9M. Groove is a bar stiffened rectangular, width 5.1M, high-4.8M, wall thickness 30CM, floor thickness 25CM, rib width 30CM, rib high 70CM. Prestressed by post-tensioned construction, each side of the wall at the bottom of the 270K level set a 10Φj15.24 strand bundle, the standard strength σyb = 1860Mpa, anchored under the control of stress σkb = 1209Mpa, tension-side with XM-10 Anchor a fixed, fixed end is crimped anchor, 525 # cement grouting sealing.
Third, supporting structure
Supporting structure using bored piles and bent two forms. Original