Application field

The borehole test project results in tajikistan report

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Ⅰ、Test site background introduction:

1. Test site background introduction:

Since the local climate is the most changeable, soil saline-alkalization is too extreme, resulted there is less the naturalvegetation scarce in the whole river.which also leads to the river dam and serious soil erosion, and the local land mainly in the soft soil. There are many different sizes of stones and soil slide frequently from the reality site. Except the soft clay and reinforced materials which is used infrastructure layout before in the plane, surrounded by reinforced and rigid fixation of soft soil engineering materials. The layout is mainly in the form of horizontal and surface.

2. Purposes of project implementation

1.To understand the underlying structure of the whole plane, to facilitate the selection of late mining equipment and work plan formulation.

2.)Defined the location of the rock layer cracks predicted by experts , which provides

more valuable information for the repair project.

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Ⅱ、Project implementation

Data collection of basic parameters for Borehole testing

Items

Hole Number

Descriptions

Remarks


 

A

 

Northwest, deep 30m

1. The 4 hole depth is completed at the beginning of the project, and the   specific test depth may be different due to environmental changes.

2. Position refer as the center of the test plane as the coordinate,which   only for explaining the approximate position relationship between the 4 holes.

4 Holes Basic parameter

 

B

 

Southwest, deep 30m

C

Northeast, deep 30m


D

Southeast, deep 30m


Cable   layouts

Test details

Remarks


B-D

Hole depth 30m. spacing

1. The electrodes and   cables in the test

T171002004

23.5m

are mainly through   WiringBox


A-C

Hole depth 30m. spacing

(Geomative) 20 channel.

T171003001

23.5m

2.The electrode spacing is   1m.


Test between

B-C T171003002

T171003003

 


Hole depth 30m. spacing 28.5m

With 30 take-outs per cable. 3.The test depth of A-B hole is

complicated because of the   complicated


A-D

Hole   depth 30m. spacing

environment. It's only down to 28m.

T171003004

28.3m

4.All test procedures have a length of 0.5


C-D

T171004001

Hole depth 30m. spacing

17.1m


reinforcement at the first take-


outs.

5.The D hole is the breakthrough of the whole metal.


A-B

Hole depth 28m. spacing

T171005001

16.8m





Ⅲ、Resistivity imaging equipment

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Ⅳ、Analysis of the results of 4 holes test data under ERT method


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