7 Development optionsenvironmentclearance.nic.in/writereaddata/Online/TOR/09... · 2017-05-09 · Figure 7-1: Development options and anchorage alternatives 7.1 Option 1: Chher Moti

Satyesh Brinechem Pvt. Ltd. Site selection and pre-feasibility study for salt export jetty at a location near Kori Creek, Kutch

Final report

BMT Consultants India Page 40

7 Development options

This chapter explores the development plan of the export facility at each of the three

locations selected. The key planning parameters have been discussed based on the

operating considerations and functional requirements. Based on it, the concept layout and

operating scheme have been developed for each site alternative.

Figure 7-1: Development options and anchorage alternatives

7.1 Option 1: Chher Moti

7.1.1 Introduction

In Option 1, the captive salt jetty is proposed to be developed at Chher Moti. This site is

located in close proximity to the Akrimota lignite thermal power plant and is the farthest of

all three sites from the anchorage.

7.1.2 Barge size

The depths available at this site are the lowest of all the sites, since it is located upstream

of Kori Creek where the intertidal area is considerably higher and water depths reduce

significantly. As per the secondary data available, water depths are varying from 1 m to 3

m CD along Chher Moti. The extent of the intertidal area is approx. 2 km, and highest

amongst all locations

As discussed in Table 6-1, the basin and inner channel depth requirement for handling

1000 DWT barges is -3.85 m CD. Considering the availability of depths, it would be feasible

to handle 500 or 1000 DWT barges only, at Chher Moti. As discussed in §5.3.7, the option

of 3000 DWT barge works out to be the most economical, whereas using a 1000 DWT

barge is the most expensive. Accordingly, the per tonne cost of using 500 DWT barge for

operations would be higher than the cost for 1000 DWT, and hence is not considered

feasible. Barges of size greater than 1000 DWT can be operated at this location under two

Option 1

Chher Moti

Option 2

Budh Bandar

Option 3

Dhunay

Anchorage

alternative 2

Anchorage

alternative 1


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scenarios: either by carrying out dredging to deepen the channel/ basin or utilising tidal

windows for barge movement. To operate 3000 DWT from this location, capital dredging in

the range of 1 Mm3 would be necessary.

However, at present 1000 DWT barges for the export operations will be considered for

planning of the facility at this site (no- dredge option).

7.1.3 Functional requirements

7.1.3.1 Principle harbour dimensions

As discussed in §6.1, the principal harbour dimensions for developing the facility at Chher

Moti considering handling of 1000 DWT barges are as follows:

• Turning circle dia.: 115 m

• Basin/ berth pocket depth: -3.85 m CD

• Channel width: 80 m

• Channel depth: - 3.85 m CD

7.1.3.2 Berth requirements

As discussed in §6.2.2, the total length of jetty required for operating barges of 1000 DWT

is 300 m i.e. 4 berths of 75 m length each. This is assessed based on the provision of berth

length of 1.15 times the barge LoA of 65 m.

7.1.3.3 Back-up area

The stockpile requirement including space for internal circulation is 7 ha (refer §6.4). The

size of the back-up area provided for the facility is 16 ha. 15 ha is provided for the storage

yard, to accommodate the conveyor gallery and allow sufficient space for movement of

trucks to unload the cargo as well as the payloaders to carry the cargo and feed into the

conveyor. An area of 1 ha is provided for the supporting facilities.

7.1.3.4 Material handling system

The material handling system is as explained in §6.3.

7.1.4 Schematic layout

The marine infrastructure includes a jetty of 300 m length with an approach trestle

connecting it to the shore. There are 4 berths, each of 75 m length and 20 m width as

required to handle 1000 DWT barges to cater to the forecasted traffic volumes. Each of the

4 berths will be equipped with one barge loader. The offshore berths are connected to the

shore via an approach trestle. The approach trestle is approx. 2,500 m long and 10 m wide,

oriented westwards of the site location. It will have a 7 m wide two-way road and 3 m wide

corridor for conveyors, connecting the berths to the shore. (Refer Drawing no. BMTI-1314-

SATYESH-FINAL-DWG-004).

The approach trestle is connected to the back-up yard at the landfall point. The total size

of the back-up yard is 571 m x 280 m. The storage area for salt, including stackyard,

circulation space and the conveyor gallery is 535 m x 280 m. This area can accommodate


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8 stockpiles of 225 m length and 30 m width, stacked upto 6 m height. There is a 10 m wide

area between the stockpiles and 40 m wide space around the stockpiles to allow circulation

of vehicles for unloading and stacking.

An area of 35 m x 225 m on the southern boundary of the storage yard houses the admin

office, customs office, utilities and parking area. The gate complex is located at the

southwest corner of the back-up plot, from where the trucks carrying the salt from the plant

will enter and move towards the storage yard. An open area is provided in this zone

between the offices and the gate, for parking of trucks/ payloaders etc.

A conveyor carrying cargo will run from the back-up yard, along the trestle and onto the

berths. There will be loaders on the berth, which will receive the cargo from conveyors and

will transfer it onto the barges.

The system is designed to achieve handling rate of 24,000 tpd including peaking. The

storage is sufficient for 1,90,900 of cargo at a time, considering average dwell time of 14

days and 20% as peaking factor.

Drawing no. BMTI-1314-SATYESH-FINAL-DWG-001 shows the layout for Option 1-

Development of facility at Chher Moti.

7.1.5 Connectivity

The site at Chher Moti is approx. 76-78 km from the plant. There are two routes connecting

the plant and site. One passes through Mudhan- Gaduli- Fulra- Shinapar- Chher Moti (75

km) and the other through Gaduli- Umarsar- Lakhpat- Punrajpur- Chher Moti (74 km). Last

mile connectivity will be required to be developed for this location.

The site is well connected from the state highway. If the road leading to the power plant

(1.8 km long) is not private and can be used by SBPL, a road of 0.6 to 1.0 km would need

to be constructed for access to the location. It is likely that widening and maintenance of

the existing road leading to the power plant may be required, with cost sharing with the

power plant if it possible to be utilised for the SBPL facility. Clearance from the Forest

Department may not be necessary for development at this location, unless SBPL have to

develop a new approach road upto the state highway. In this case, a road of 2-2.5 km length

would have to be developed.


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Figure 7-2: Connectivity from Chher Moti to plant

Figure 7-3: Alternative route alignment for approach road from SH to

Chher Moti

Mudhan

Chher

Moti site


Final report


7.2 Option 2: Budh Bandar

7.2.1 Introduction

Option 2 refers to the proposed alternative of developing the export facility at Budh Bandar.

It lies between the sites of Chher Moti and Dhunay. This location has also been identified

by the Archean Group for a salt jetty and thus, identification of their land and project details

will be required to ensure there are no issues at a later stage. Confirmation will be required

on land ownership status for the area.

7.2.2 Barge size

Moving upstream of Kori Creek, there is an increase in the extent of intertidal area and

reduction in water depths. As per the secondary data available, water depths are varying

from 2 m to 4 m CD along Budh Bandar. The extent of the intertidal area is approx. 1.7 km.


2000 DWT barges is -4.40 m CD. As discussed in §5.3.7, the option of 3000 DWT barge

works out to be the most economical, whereas using a 1000 DWT barge is the most

expensive. However, given the depth restrictions at this location, barges of size 3000 DWT

or more can be operated at this location under two scenarios: either by carrying out

dredging to deepen the channel/ basin or utilising tidal windows for barge movement. To

operate 3000 DWT from this location, capital dredging in the range of 3 Mm3 would be

necessary.

Hence, 2000 DWT is considered for operations at this location (no- dredge option).



As discussed in §6.1, the principal harbour dimensions for developing the facility at Budh

Bandar considering handling of 2000 DWT barges are as follows:




• Channel depth: -3.85 m CD



is 250 m i.e. 3 berths of 81 m length each. This is assessed based on the provision of berth

length of 1.15 times the barge LoA of 70 m. Accordingly, 3 berths of 85 m length are

provided for the facility.



size of the back-up area provided for the facility is 15.3 ha. 14 ha is provided for the storage

yard, to accommodate the conveyor gallery and allow sufficient space for movement of


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trucks to unload the cargo as well as the payloaders to carry the cargo and feed into the

conveyor. An area of 1.3 ha is provided for the supporting facilities.




The marine infrastructure includes a jetty of 255 m length with an approach trestle

connecting it to the shore. There are 3 berths, each of 85 m length and 20 m width as

required to handle 2000 DWT barges to cater to the forecasted traffic volumes. Each of the

3 berths will be equipped with one barge loader. The offshore berths are connected to the

shore via an approach trestle. The approach trestle is approx. 2,500 m long and 10 m wide,

oriented northwest of the site location. It will have a 7 m wide two-way road and 3 m wide

corridor for conveyors, connecting the berths to the shore (Refer Drawing no. BMTI-1314-

SATYESH-FINAL-DWG-004).

The approach trestle is connected to the back-up yard at the shore through a 180 m long

and 10 m wide road. This is provided considering the restricted availability of space near

the shore. The total size of the back-up yard is 410 m x 375 m. The storage area for salt,

including stackyard, circulation space and the conveyor gallery is 375 m x 375 m. The

layout at this location is planned in a way to accommodate 12 stockpiles of 150 m length

and 30 m width, stacked upto 6 m height. The facility is planned in this manner taking into

consideration the possibility of establishment of the Archean facility in the vicinity and to

avoid potential conflicts. There is a 10 m wide area between the stockpiles and 30 m wide

space around the stockpiles to allow circulation of vehicles for unloading and stacking.












Drawing no. BMTI-1314-SATYESH-FINAL-DWG-002 shows the layout for Option 2-

Development of facility at Budh Bandar.


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7.2.5 Connectivity

The site at Budh Bandar is approx. 80-82 km from the plant. The route connecting the plant

and site passes through Mudhan- Gaduli- Fulra- Pandhro- Kaiyari- Budh Bandar and is 77

km long considering the road upto SH-6. Last mile connectivity will be required to be

developed for this location.

The approach from state highway will necessitate building a new road of 3.5- 5 km upto the

site location. Since the dirt tracks used by BSF passes through the forest area, appropriate

clearances would be required if the access for the SBPL facility is to be developed along

that path. Road developed along this route would be 3.5 km long. However, an alternative

route can be developed skirting the forest, which may be in the range of 5 km length.

However, since it will have to be developed through intertidal areas there may be

implications with regards to CRZ rules and appropriate clearances may be necessary for

reclamation.

Figure 7-4: Connectivity from Budh Bandar to plant

Mudhan


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Figure 7-5: Route alignment for approach road from SH to Budh Bandar

7.3 Option 3: Dhunay

7.3.1 Introduction

Option 3 refers to development of the proposed facility at Dhunay. This location is closest

to the mouth of the Kori Creek, and thus, also the anchorage.

7.3.2 Barge size

The deep water contours near Dhunay are closer to the shoreline compared to the other

two locations. As per the secondary data available, water depths are varying from 3 m to 5

m CD along the Dhunay. The extent of the intertidal area is approx. 0.5 km, and lower than

the other locations.


3000 DWT barges is -4.95 m CD. As discussed in §5.3.7, the option of 3000 DWT barge

works out to be the most economical. Considering the availability of depths, it would be

feasible to handle 3000 DWT barges at Dhunay. Hence, the planning for the facility at

Dhunay will be undertaken considering 3000 DWT barges for the export operations.



As discussed in §6.1, the principal harbour dimensions for developing the facility at Dhunay

considering handling of 3000 DWT barges are as follows:



Budh Bandar site


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• Channel depth: -4.95 m CD



is 280 m i.e. three berths of 92 m length each. This is assessed based on the provision of

berth length of 1.15 times the barge LoA of 80 m. Accordingly, 3 berths of 95 m length are

provided for the facility.



size of the back-up area provided for the facility is 16.3 ha. 15.3 ha is provided for the

storage yard, to accommodate the conveyor gallery and allow sufficient space for

movement of trucks to unload the cargo as well as the payloaders to carry the cargo and

feed into the conveyor. An area of 1 ha is provided for the supporting facilities.




The export facility at Dhunay includes development of 3 berths, each of 95 m length and

20 m width to handle 3000 DWT barges to cater to the forecasted traffic volumes. Each of

the 3 berths will be equipped with one barge loader. The offshore berths are connected to

the shore via an approach trestle. The orientation of the approach trestle is towards

northwest of the location. The approach trestle is 800 m long and 10 m wide. It will have a

7 m wide two-way road and 3 m wide corridor for conveyors, connecting the berths to the

shore. (Refer Drawing no. BMTI-1314-SATYESH-FINAL-DWG-004).

The approach trestle is connected to the back-up yard at the landfall point. The total size

of the back-up yard is 562 m x 290 m. The storage area for salt, including stackyard,

circulation space and the conveyor gallery is 527 m x 290 m. This area can accommodate

8 stockpiles of 225 m length and 30 m width, stacked upto 6 m height. There is a 10 m wide

area between the stockpiles and 40 m wide space around the stockpiles to allow circulation

of vehicles for unloading and stacking.













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Drawing no. BMTI-1314-SATYESH-FINAL-DWG-003 shows the layout for Option 3:

Development of facility at Dhunay.

7.3.5 Connectivity

The site at Dhunay is approx. 85-86 km from the plant. The route connecting the plant and

site passes through Mudhan- Gaduli- Fulra- Pandhro- Kaiyari- Dhunay, which is 80 km long

upto the SH-6. Last mile connectivity will be required to be developed for this location.

Currently, this location can be accessed only through the dirt tracks used by BSF. Land

acquisition will also need to be undertaken for the access road development. Since the

existing route used by BSF passes through the forest area, appropriate clearances would

be required if the access for the SBPL facility is to be developed along that path.

Alternatively, a route passing from outside the demarcated forest area can be developed.

However, it is envisaged that clearance from the Forest Department will be necessary in

both the cases considering the close proximity of this location to the forest area. The length

of the access road will be approx. 5- 5.5 km for both alignments.

Figure 7-6: Connectivity from Dhunay to plant

Mudhan


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Figure 7-7: Route alignment for approach road from SH to Dhunay

Dhunay site


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7.4 Development summary

A summary of the marine and landside infrastructure requirements at each of the three

locations is as shown below:

Table 7-1: Summary of development

Sr. No. Proposed infrastructure Chher Moti Budh Bandar Dhunay

1 Berths 300 m (4 nos. of 75 m

length each)

255 m (3 nos. of 85 m

length each)

285 m (3 nos. of 95 m

length each)

2 Approach trestle 2,500 m x 10 m 2,500 m x 10 m 800 m x 10 m

3 Storage yard area 15 ha 14 ha 15.3 ha

Stockpile nos. 8 nos.

(225 m x 30 m x 6 m)

12 nos.

(150 m x 30 m x 6 m)

8 nos.

(225 m x 30 m x 6 m)

4 Buildings & utilities 1 ha 1.3 ha 1 ha

5 Material handling system

5a Barge loaders 4 nos. (800 tph rated

capacity)

3 nos. (800 tph rated

capacity)

3 nos. (800 tph rated

capacity)

5b Conveyor system Designed to match handling rate of loaders

5c Hoppers 5 4 4

5d Payloaders 16 20 16

Documents

7 Development optionsenvironmentclearance.nic.in/writereaddata/Online/TOR/09... · 2017-05-09 · Figure 7-1: Development options and anchorage alternatives 7.1 Option 1: Chher Moti