价值工程
價值工程
개치공정
VALUE ENGINEERING
2014年
1期
113-113,114
,共2页
二次对中%底口漏浆%垂直度%掉钻%混凝土灌注
二次對中%底口漏漿%垂直度%掉鑽%混凝土灌註
이차대중%저구루장%수직도%도찬%혼응토관주
second time centering%bottom slurry leakage%verticality%drills%concrete spouting
本文介绍了流溪河特大桥钻孔灌注桩施工的实例，并针对钻孔过程中出现的护筒底口漏浆，超深全岩地质孔垂直度易超标，基岩过硬对钻具破坏严重，直径2.5m超深桩灌注等问题进行了探讨。
本文介紹瞭流溪河特大橋鑽孔灌註樁施工的實例，併針對鑽孔過程中齣現的護筒底口漏漿，超深全巖地質孔垂直度易超標，基巖過硬對鑽具破壞嚴重，直徑2.5m超深樁灌註等問題進行瞭探討。
본문개소료류계하특대교찬공관주장시공적실례，병침대찬공과정중출현적호통저구루장，초심전암지질공수직도역초표，기암과경대찬구파배엄중，직경2.5m초심장관주등문제진행료탐토。
The construction example of the extra-large bridge bored pile construction in Xiliu River is introduced in this article. Problems including retaining cylinder bottom slurry leakage, easy standard exceeding of the extra-large total rock geological hole verticality and hard rock's damage to the drilling tools and of 2.5m diameter extra-deep perfusion pile pouring are discussed in this paper.
