những vấn đề cơ bản về xây dựng tầng ngầm (Basement Construction)

Basement Construction


Part Ï —

General understanding about
the Construction of Basement


Construction of Deep Basement and
Large-sized Underground Structures
Examples of underground structures


Construction of Deep Basement and
Large-sized Underground Structures
Involvement/provision when constructing these
Structures




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Methods for basement construction

Basement or similar underground structures
can be constructed using the following
approaches:


- suitable for site with abandon of unobstructed working space
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- suitable for basement of small to medium size


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Construction of basement using Bottom-up
approach


suitable for basement of very large size with complex environment


Construction of basement using Top-down approach
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Compare the features of various
basement construction methods
Open-cut

Bottom-up

Top-down

Size of site

Very large open site |Small sized site

Large sized site

Site environment

|Unobstructed

Adaptable to most

[Adaptable to most

environment

complex environment

|Complex lateral

Limited shoring

Support required —

|support where req’d.

Not much

Temporary vertical

Protection
Special provision

Simplest protection
|Not much

support required
Machine suitable

{Large machine

Small machine

Large machine

Spoil removal

Using ramp

Staged platform or

|Ramp, vertical shaft

bucket

or bucket

Other consideration



Attributes that affect the construction of deep
basement:


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