地勘（中-英）

本次勘察阶段为详细勘察。由设计院共布置钻孔91个，其中技术孔46个，鉴别孔45个，并提出如下勘察内容和要求：

This phase of the survey consists in detailing the survey. The Design Institute arranges 91 boreholes, including 46 technical holes and 45 identification holes, and proposes the following survey contents and requirements:

(1) 查明工程范围内各层岩土的类别、深度、分布和工程特性，提供各层岩土物理力学性质设计参数，分析和评价地基的稳定性、均匀性和承载力。

(1) To identify the type, depth, distribution and engineering properties of rocks and soils in various layers within the scope of engineering, thus to establish their physical and mechanical property design parameters, and analyze and evaluate the stability, uniformity and bearing capacity of the foundation.

(2) 查明不良地质作用的类型、成因、分布范围、发展趋势和对基础的危害程度，提出整治方案的建议。

(2) To identify the type, factor, distribution range and development tendency of the unfavorable geological effect and the severity of its damage to the foundation in order to propose suggestions for rectification.

(3) 查明场地填土（包括新近场地平整的填土）的实际土层厚度，分析评价填土对工程的可行性。

(3) To identify the actual soil depth of on-site fills (including the newly-leveled fills), and to analyze the feasibility of filling for the project.

(4) 提供地基变形计算参数，预测建筑物的变形特征。

(4) To provide foundation deformation calculation parameters to predict the deformation characteristics of buildings.

(5) 提供挡土墙设计计算参数。

(5) To provide the design calculation parameters of the retaining wall.

(6) 查明埋藏的河道、沟浜、墓穴、防空洞、孤石等工程不利的埋藏物。

(6) To identify buried objects which could hinder the project, such as watercourses, channels and ditches, tombs, air-raid shelters and isolated stones.

(7) 查明地下水的埋藏条件，提供地下水位及其变化幅度。判定水和土对桩基设计施工的影响及对建筑材料的腐蚀性。

(7) To identify the occurrence mode of underground water so as to establish the underground water level and its range of change, and to determine the influence of water and soil for pile foundation design & construction as well as the corrosion of construction materials.

(8) 在了解当地常规做法的基础上，对基础型式、地基处理方式提出建议。

(8) On the basis of understanding of local practice, to make suggestions for the foundation type and foundation treatment methods.

(9) 应提供桩基础计算参数，评价成桩可能性，论证桩的施工条件及其对环境的影响。

(9) To provide pile foundation calculation parameters to evaluate the piling possibility and demonstrate construction conditions of the pile and its impact on the environment.

(10) 对基础和地下构筑物的基坑开挖方案提出建议，并提供基坑支护设计计算参数。

(10) To present recommendations for foundation pit excavation plans of foundation and underground structures and buildings, and to provide foundation pit supporting design calculation parameters.