Design of Coastal & Marine Structures

Basic & Detail Design Of The new Coastguard Jetty in Imam Khomeini Port Iran

Start date of the project: 2019/ November/ 05
Khomeini Emam port is locate at the Iran-Khozestan province. This port has 38 active quay with total length 7 Kilometer. This import is the largest port in Iran after the shahid Rajaie Port that is connect to Iranian total train net. The total imports and exports of this port are 30 million ton material.
Khozestan province port Total office wanted to do the step 1 and 2 of studies to construct the jetty and that buildings in the north side of port. Doing these studies gave to Tadvin Tosehe Paydar Consulting Company after doing tender.
The summaries of this company task in this project are expressed as follow:
1- Presenting the report of initial study about different alternative for type of jetty and determine the best option.
2- Investigating about environmental risks.
3- Doing the basic and conceptual design of the building and jetty and presenting that corresponding plans.

Engineering, supreme and site supervision Services, for the project of the essential repairing of iron ore the jetty, Access Bridge, concrete and steel building and associated facilities

Start date of the project: 2019/ October/ 07
Persian Gulf Mining and Metal Industries Special Economic Zone is located in the Bandar Abbas province of Iran. The facilities of the Persian Gulf Special Zone Company consist of two 100,000-ton bulk material jetties and a 100,000-ton oil material jetty. Since these facilities are made about 20 years ago, the Persian Gulf Special Zone Company wanted to give the repairing contract to other company by holding the tender. In this regard, Tadvin Tosehe Paydar consulting company is selected as consulting of client. The thask of this company in the project are summaries as follow:
1- Preparing the tender document
2- Holding the tender and determine the winner of the tender
3- High and operative supervision services
4- Preparing engineering services consist of:
Simulating Access Bridge by SCI Bridge software and determining the procedure of traffic restriction. Preparing as-built plan of Access Bridge to determine the settlement location Technical reasons studies settlements at some span of Access Bridge and presenting the solution methods to resolve the problems. Preparing the procedure to derange of pump station

Studies related to determine the necessary arrangements for the loading and berthing vessels of 20,000 to 35,000 tons to export the Sulfuric acid in the Persian Gulf eastern jetty

Start date of the project: 2019/ May/ 15
The National Iranian Copper Industries Company is founded in 1972. All activities of copper mines in Iran are done under the supervision of this company. The company's duties consist of extraction and exploitation of copper mines, production of high-quality stone mine and copper products such as cathode, slabs and billet. The important mines in Iran are Mess Sarcheshmeh and meydoonak mines in Kerman and Mes Songoon in Azarbayejan Sharghi.
The National Iranian Copper Industries Company wanted to produce the sulfuric Acid in the Mes Sarcheshmeh and Khatun Abad copper mines. At present, there is not enough capacity to use the total amount of acid produced in Iran. Considering the studies carried out in the southern regions of the country, due to developments in the chemical and petrochemical industries in this region, some part of these materials can be used by these companies. Also, the extras produced sulfuric acid, which can not be sold in the country, can be export to other countries. Hence, construction of sulfuric acid storage tanks in the Persian Gulf Mineral and Metal Industries Special Zone (PGMISEZ) and construction of the necessary infrastructure to export the extras sulfuric acid by Persian Gulf Special Zone jetty is on the agenda. In this regard, studies related to determine the necessary arrangements the arrangements for the loading and berthing of vessels from 20,000 to 35,000 in the Persian Gulf eastern jetty is entrusted to the Tadnin Tosehe Paydar Company. These studies include the feasibility study in term of vessels berthing , the technical feasibility consists of checking the Fendering and bollard systems to berth the vessels and present the technical solutions, investigating the different options for piping from the coast to the loading arms location and suggest the best option and finally taking the essential permits from the PGMISEZ. The engineering services in this project are expressed as follow:
1- Collecting the existing information
2- Determining the goal of the project and taking the client requirements to export the sulfuric Acid from PGMISEZ.
3- Statistical study on the berthed vessels in the Persian Gulf Special Zone jetty in the past.
4- Investigate the number of vessels that can berth in the existing jetty of the area, taking into account their capacity, dimensions and usage.
5- Examining the ability of the fandering system to berthing the 20,000 tones vessels.
6- Checking the bollard system to berthing the 20,000 tones ship.
7- Presenting a plan to modify the fendering bollard systems, if needed.
8- Determining the suitable location of the loading arm.
9- Determining the best route from the coast to the location of the loading arms.

Port and marine Engineering Studies and dredging of PGMISEZ port

Start date of the project: 21/January/2018
The Persian Gulf Special Zone Company has two 100,000-ton bulk material jetties and a 100,000-ton oil material jetty. The turning basin and access routes to these jetties had been made about 20 years ago with dredging up to 14 meters depth, which requires the again dredging now. In this regard, the Persian Gulf Special Zone Company entrustd the study about estimating the required dredging volume and the preparation of its bidding documents to Tadvin Tosehe Paydar engineering Company. The calculated dredging volume is about 3,000,000 m3, which should be carried out by a specialist dredging contractor.
The engineering services in this project are expressed as follow:
1- Supervising on the hydrography Site
2- Providing the rotational pond plan and traffic vessels routes
3- Determining dredging sections
4- Calculation of dredging volume
5- Identifying type of material dredging and how their discharging
6- Preparing the tender document and carry out this tender

Consulting services and preparing tender documents for repairing and renovation the Dual Purpose jetty of Lavan Refinery

Start date of the project: 23/September/2017
Lavan Refinery Company entrusted consulting services and preparing tender documents for repairing the Lavan Refinery jetty to Tadvin Tosehe Paydar engineering Company. Since, some parts of these access bridge and jetty are damaged during their useful life, this consulting engineering company carried out visual inspection of the structures and then detected the locations and type of damages. Then, the repairing solutions are proposed for modifying the strength of the structure. Finally, the tender documents are provided and carried out by this company.

Basic and Detail design of new oil product export jetty of Lavan Refinery

Start date of the project: 16/July/2017
The basic design of building the exporting and importing jetty Lavan Refinery is given to the Tadvin Tosehe Paydar engineering Company after doing its conceptual design.
The engineering services in this project are expressed as follow:
1- Providing hydrography plan for building site.
2- Environmental studies.
3- Providing the EPC tender documents.

Consulting contract and detail design of oil and gas product exporting port and pipeline and its facilities in the Persian Gulf Mining and Metal Industries Special Economic Zone

Start date of the project: 2016/ October/ 29
Banagostar Karaneh Company wanted to export oil and gas product from the Persian Gulf Mining and Metal Industries Special Economic Zone. In this regards, Tadvin Tosehe paydar engineering Company was charged with designing jetty with the 100 ton capacity, pipeline and facilities.

Design of floating jetty for boats and barges berthing in the Persian Gulf special zone

Start date of the project: 09/October/2014
Small vessels like Barges and landing craft cannot berth to Persian Gulf special zone jetty due to the tide fluctuations in Persian Gulf. Therefore, according to demand of several active companies in Bandar Abbas to export their products with low tonnages, PGMISEZ Company wanted to build the small jetty with capacity between 2000 – 5000 tons or berthing the barge. On the other hand, the boats of technical inspectors and special zone security need the small jetty to berth.
Tadvin Tosehe Paydar engineering Company based on above requirements and by considering the similar feature of boats and barges berthing suggest that the floating jetty is constructed for berthing of personnel boats and barges.

Conceptual design of new oil product export jetty of Lavan Refinery

Start date of the project: 23/August/2014
Lavan Oil Refining Company wanted to build an oil terminal for the petroleum and gas condensate discharge on the southern shore of Lavan Island. The daily supply of this refinery will amount to 150,000 barrels of petroleum and gas condensate. These materials will convert to the oil products by refinery processes and loaded to vessels in this jetty for exporting.
Location of jetty
The Lavan Coral Island is parts of the Lavan countryside in the Kish. The island is bounded from the northeast to the Mogham port, from the east to Shtour (Shidor) Island and from the south to the Resalat, Reshadat and Salman oil fields. This island has 76 KLM2 as well as this island is the largest island after Qeshm and Kish islands in the Persian Gulf.

The development plan of the dry part of the Kaveh Qeshm port and jetty

Start date of the project: 08/November/2012
Qeshm Free Zone Organization gives Development plan of the dry part of the Kaveh Qeshm port and jetty to Tadvin Tosehe Paydar engineering Company. The studies on the development plan of the Kaveh Qeshm port and jetty have been done by several Iranian and foreign engineering company repetitively in recent years. The development phases of Kaveh Port are divided into three phases based on studies by HPC and IMS companies.
Phase 1: Development of Eastern and Western open reservoirs in Kaveh Qeshm port and port equipping by container loading and unloading machinery for loading and unloading 60,000-70,000 tons. It should be noted that the open eastern reservoirs of Kaveh Qeshm port in 4.4 Hectare had been developed until the date of notice to proceed. In this step, the remaining works are completed.
Phase 2: Construction of two wall jetties with 300 meters length approximately on the southwest coast of Kaveh Qeshm.
Phase 3: The development of Phase 2 and the construction of two wall jetties with 400 meters length approximately.
The goals of building these jetties are the berthing of container ships with 100,000 tons capacity as well as port equipping by loading and unloading machinery.
Consulting services for basic and detail design of development plan of Kaveh Qeshm port are described as follows:
1- Determining the type and feature of all used equipment in constructing the port include rail crane and related facilities.
2- Electrical and lighting installation and CCTV port and Kaveh jetty
3- Design of the fuel tank for heavy vehicles in the port and determining the proper method for refueling to the port vessels.
4- Design of channel of surface waters collection, required fencing and traffic sign plan in the port zone.
5- Design of water intake system and sea water plumage and desalinating for the water supplying for fire water station and drinking and locating the hydrant valves.
6- Design of repairing and maintenance plan of jetty and Access Bridge.
7- Design of Ro-Ro jetty for unloading the heavy vehicles from Landgraf.
8- Proposing the preliminary plan for locating the oil jetty with the berthing capacity of 60,000 tons vessels and designing the oil pipeline corridor connected to the proposed jetty from under construction the refinery location.

Conceptual studies and design of the access bridge of the gas condensate import jetty and the petroleum products export, the water intake facilities and discharge of required water of Nik Qeshm oil refinery.

Start date of the project: 22/October/2012
Nick Qeshm Oil Company wanted to build its gas condensate refinery in the area that called Sousa on the southern coast of Qeshm Island. The daily refinery feed is 1, 20,000 gas condensate barrels. These materials are converted to various products such as gasoline, jet fuel and LPG by refinery processes to export.
The predicted plans for developing the refinery facilities are expressed as follows summarily:
1- Oil terminal including:
a. Rocky access rout with 920 meters length.
b. Dikes arm with 300 meters length for boats berthing.
c. The access bridge with 1500 meters length.
d. Pipeline installation inside of the access bridge with 2500 meters length.
e. The jetty for loading the oil products with 60,000 tons capacity.
f. The jetty for unloading the gas condensate with 100,000 tons capacity.
2- Refinery water intake includes water intake structures into the sea; pipelines to transmit sea water to cost and construction of a reinforced concrete structure in the water intake basin.
3- Facilities to transmit the backward water of refinery.
4- Coastal Support Buildings.
5- Coastal security.
Project Site location is predicted in the southern coast of Qeshm Island as well as the refinery site inside the sea are fenced and determined. The refinery has 1450 m length of the coastal site. This area is a proper site to install oil terminal and water intake and water backward facilities.

Preparation of Tender Documents for Persian Gulf Regional Transportation Network Project

Start date of the project: 2010/Aug/01
Tadvin Tosehe Paydar Engineering Co. Was Selected by Qeshm Free Area Organization (QFA) for Preparation of bidding documents and execution of subjected project on Aug /01/2010
Because of extensive fields of project in bridge, port, highway, railway and financing, this company collected and called elite and perfect specialists in each fields to prepare bidding and technical documents for tender in the form of engineering, procurement, construction and finance (EPCF) tender. The bidding documents were prepared according to the client’s (QFA) schedule through regular weekly meeting with collected engineering specialist team. According to the permission No.38252/189553 dated Dec. 16, 2010 of the cabinet of Islamic Republic of Iran government, request for Qualification documents of tenderers was published in "Iran" and "Etelaat" domestic newspaper and "Iran Daily" International newspaper Dated Jul. 4, 2010 for the first time and ‘Resalat and Jomhury Eslami Iran’ newspapers and also ‘Tehran Times’ international newspaper dated Aug. 12, 2010 for second time in order to select an EPCF contractor. According to the ‘Tender’s Law’ and during the period of Aug. 23, 2010 to Sep. 22, 2010, 12 Iranian and international contractors submitted the RFQ documents. The results of RFQ documents was published on Dec. 16, 2010 and 6 Contractors were qualified by the Tadvin Tosehe Paydar engineering company and consequently approved by the client`s tender committee. Selected contractors were invited to receive bidding documents on Jan. 10, 2011.
The final result of tender were submitted to the client and after internal discussion of client`s tender committee, two tenderers were selected by the client and the Contract agreement is proceeding now. The services which were completed by TTP engineering company are as outlined below:
• Preparation of bidding documents
• Preparation of technical documents
• Execution of call for tender
• Prequalification of tenderers
• Execution of tender

Design Of Kaveh Port Onshore Facilities (Initial Phase)

Qeshm Oil Industry Offshore Facilities Company selected Tadvin Tosehe Paydar engineering company for designing the port pavement, port arrangement, surface water drainage system, outdoor warehouses, buildings and other facilities for the first phase of Kaveh Port Development Project in an area of about 20 hectares at Qeshm island.
In this project that lasted one year, TTP engineering company provided all the necessary technical drawings, documents, specification and cost estimations to the Qeshm Oil Industry Offshore Facilities Company (client).

Firewater Pump Station at Eastside of the Lavan Refinary Dual Purpose Trestle, Engineering Project

According to Lavan refinery's plan to increase its petroleum production based on future changes and needs for expansion and to increase its facilities, TTP
engineering company received the contract to increase the capacity of fire fighting system for the Lavan refinery with the installation of two new fire water vertical pump on the new platform, constructed near the recently built dual purposed jetty.
Some of Important accomplishments in execution of this project can be mention as follow, optimize usage of space for the vertical pumps and its diesel generators and also designing the ideal pipeline system for transferring the water from pumps to the existing fire fighting network that provide better conditions for construction and maintenance operations on the platform.
In this project TTP engineering company was responsible for:
1. Preparation of technical documents for Design and procurement of two Fire fighting vertical pumps and Diesels. (Each pump has 850 m3/h output)
2. Design of two diesel generators (preparation of technical documents and drawings)
3. Providing procurement engineering documents for two vertical fire fighting pumps each one with 850 m3/h output.
4. Providing procurement engineering documents for firefighting vertical pumps, starter generator.
5. Locating the installation spots for two vertical pumps along with their diesel generators on the constructed platform.
6. Design of detail drawings of pipline system including the connection of pumps output to the header and also connection of outputs header to existing firefighting network pipeline system located on the dual purpose jetty pipe rack.

Development of Kaveh Port Onshore Facilities (Initial Phase)

In 2009, Qeshm Marine Port Complex Company as the operator and beneficiary of Kaveh port in Qeshm Island, awarded workshop and supreme supervision on first phase construction of Kaveh port Onshore Facilities Development project to the Tadvin Posehe Paydar engineering company.
Work Scope of this project was providing workshop and supreme supervision on the construction of port pavement, surface water drainage system, outdoor warehouses, buildings and other facilities necessary for the first phase of Kaveh Port Development at 20 hectares of land.

Cooling Water Pump Station, Engineering Project

Regarding future development plans for Lavan refinery and the need for water intake from the sea for the refinery’s cooling system, construction of a water intake platform became necessary, so TTP engineering company was selected to design a pile and concrete deck platform adjacent to the Lavan dual purpose oil-logistic jetty with the area of 380 m2 required for the installation of 7 vertical pumps with the capacity of 1800 m3/s each and 12600 m3/h in total. One 42 inches pipeline will transfer the water to the shore and then to the consumption location. On the platform also there is a shelter and a 5 tons overhead crane in order to move the equipments to a proper location for sending to shore. In this project TTP engineering company was responsible for providing all the detail design drawing and documents for civil, structure and electrical works and also providing consulting services to the project contractor in order to solve the problems in the project construction phase.

Development of IOOC Jetty and Installation of 2x16” Subsea Pipeline for Oil Product Project

IOOC oil jetty is located at Lavan Island that is in 18 km distance from the coast of Iran and the Persian Gulf. This jetty connects to shore with an access route consists of a stone road and a steel access bridge with wooden deck. Jetty has the berthing capacity of 150,000 tons oil tankers and 30,000 to 60,000 tons oil product tankers. Since the year 1997, Lavan Oil Refining Company felt the need for adding two new oil product export pipelines on the existing jetty’s trestle specially with respect to the expansion plans in the following years. So Lavan Oil Refining Company awarded the contract for replacing the existing oil pipelines on the IOOC jetty and also adding two new oil product pipelines to the IOOC jetty loading platform, to the Pars Eskeleh- Puya Tarhe Pars consortium. TTP engineering company took the responsibility of all the design and engineering works.
Marine Division Scope of work in this Project was determination of the proposed subsea pipeline routes with mentioning the advantages and disadvantages of each option so that the client can select one option for the contractor to be implemented.
Something important about this project that can be pointed out was implementation of an innovative procedure that was the best and the most economical option for this project to

Development of IOOC Jetty and Renovation & Replacement of Oil Products Pipelines

According to Lavan refinery’s, process improvement and expansion plans, the refinery intends to increase its capacity according to the following table:
Product Name Unit Present Status After the Implementation of the Plan
GASOLINE Liters per day 1,060,000 2,800,000
ATK Liters per day - 1,000,000
GAS OIL Liters per day 1,780,000 2,800,000
FENIL OIL Liters per day 1,692,000 2,700,000

Also the condensate product will be imported from the Iranian offshore oil company’s (IOOC) jetty for the prospective projects needs. The above mentioned products then will be sent from the storage tanks in the refinery to the IOOC oil jetty with several pipelines and eventually will load to ships by the loading arms. Lavan refinery with regard to the its expansion plan had decided to replace some of the existing pipeline and add several new ones.
Thus Lavan Oil Refining Company had assigned the pipeline replacement project to consortium of Pars Eskeleh and Puya Tarhe Pars companies. In this project Tadvin Tosehe Paydar Company took the responsibility for providing design and engineering services.
The project work Description was providing engineering services, purchasing, installation and commissioning and delivery of pipeline replacement and construction of pipelines as follows:
1. Construction of two new subsea 16 inches pipelines from jetty’s first valve pit to the loading platform in the western side of the existing oil jetty access bridge each with length of 1,150 meters for the gasoline and gasoil transmission.
2. Construction of an 18 inches new pipeline from the measurement system (PD-Meter) to the valve pit location at the beginning of the jetty with the length of about 900 meters for the transmission of gasoil on land.
3. Replacement of 8, 12 and 16 inches pipelines from the valve pit location to loading platform, each with the length of approximately 980 meters.
4. Performing essential repairs and reinstallation of five existing loading arms.
5. Replacing of 14 inches existing pipeline from the measurement system (PD-Meter) to the valve pit location at the beginning of the jetty for transmission of condensate with the length of about 900 meters.
6. Installation and commissioning of the Slop tank and product transmission pump in around the valve pit area at the beginning of the jetty. TTP engineering company scope of work in this project was, design of new and replaced pipeline route, design of concrete and metal supports for the pipeline route and also providing procurement engineering services and inspections for the piping, mechanical, electrical and instrumentation disciplines in the construction
phase of the project.