为了准备建筑的底基和道路需进行挖运土方。
General earthmoving will be done to prepare sub-bases of buildings and roads.
人工挖孔扩底灌注桩是高层建筑常用的一种桩基础形式，其施工质量的好坏直接影响到建筑的结构安全。
Usually the poured pile by artificial excavation expanding bottom is one foundation pile style of tall building, whose quality can affect the structural safety of the construction directly.
此外，本文还计算了相当于天然情况各种水深、各种挖深比、各种挖槽底宽下挖槽内的流场。
In addition, the fields of the every kind depth, ratio of dredged depth and bottom width in national condition were calculated in this paper.
该楼系框架结构，采用人工挖孔扩底桩基础。
The building with frame structure is based on manual cavity expansion pile foundation.
文章主要介绍监理工程师在人工挖孔扩底灌注桩施工过程的质量控制。
This article mainly introduces quality control based on supervising engineer in course of the construction about the poured pile by artificial excavation expanding bottom.
通过实例介绍人工挖孔大直径扩底灌注桩工程量的计算方法。
The paper illustrates the calculation of the amount of work in man-operated well digging and pile depositing with the bottom enlarged in diameter.
泵吸反循环钻孔扩底灌注桩与人工挖孔灌注桩相比，地质条件的适应性强，施工安全可靠。
Compared to artificial digging-hole pile, the pumping reverse-circulation under-reamed bored pile has higher adaptability to geological condition, and its construction is safety and reliability.
根据本工程实例情况，人工挖孔桩桩底标贯试验是非常必要的。
The standard penetration test(SPT)of base-pile of the artificial bored pile is very essential according to the feature of this project.
人工挖孔大直径扩底桩具有承载能力高，结构传力简明，地质条件合适时沉降小等优点。
Large diameter bulb pile constructed by manual excavation has many advantages, such as high bearing capacity, direct load transfer, and little settlement on proper geological conditions.
沟底超挖：开挖矿用电缆沟不得超过沟底标高，如个别地方超挖时，其处理方法应取得设计单位的同意。
Ultra excavation: cable trench excavation shall not exceed the bottom elevation. If ultra-dig in some places, obtain the consent of design units.
沟底超挖：开挖矿用电缆沟不得超过沟底标高，如个别地方超挖时，其处理方法应取得设计单位的同意。
Ultra excavation: cable trench excavation shall not exceed the bottom elevation. If ultra-dig in some places, obtain the consent of design units.
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