an overview of conventional facilities (civil construction)

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DOE Annual Review -June 15,2005

An Overview of Conventional Facilities (Civil Construction)

U. S. ILC Civil studies and cost issues for Snowmass

Fred Asiri

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Civil studies & cost issues for Snowmass


Fred Asiri

• Overview– Introduction– Goals/Tasks

PrimarySecondary

– Accomplishments– Plans

Near-TermLong-Term

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Fred Asiri

• Introduction– SLAC Conventional Facilities (CF) group consists of three (3) FTE (4 FTE until recently).

We are complementary to Fermi lab CF group. All are experienced licensed professionals in their respective fields

– ILC/U.S. Conventional Facilities efforts at SLAC continue in full collaboration with Fermi lab colleagues.

A weekly video meeting is held every Tuesdays, to increase interaction and consistency in the overall work efforts.

– Collaborated with colleagues at KEK and Europe. Visited their sites and participated in many international conferences and work shops in order to coordinate our efforts.

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Fred Asiri

• Goals/Tasks:– Primary:

Continue general development of concepts, sites, costs, and schedules for ILC conventional facilities.

Identify and perform civil engineering option studies. Perform baseline site characterizations for U.S. sample site. Prepare clear scope descriptions, technical requirements

and needs, as well as option studies to initiate U.S. CDR.

– Secondary: Support ILC R&D with related facilities Support ILC Working Groups

Support and participate in ESH activities at SLAC

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Fred Asiri

• Accomplishments:– Primary Tasks:

Prepared “Conventional Facilities Design Summaries and Drawings” and option studies for Superconducting (SC) and Normal conducting (NC) for the U.S. Linear Collider Steering Group (LCSG). This activity comprised of about 50 full size drawings

and 100 pages of text and included cost-estimate studies.

Assessed Dekalb-IL and Logan Ridge-CA sites for SC and NC machine configurations.

Performed option studies for one tunnel vs. two tunnels Performed vibration characterizations of the Logan Ridge-

CA site for NC machine, as well as parametric evaluation for

the Dekalb-IL site.

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Fred Asiri

• Plan “through Calendar Year 2006”:Three milestones are envisioned for the U.S. Civil Design Effort.

– Milestone No. 1 - Snowmass Conference – August 2005 Investigate prospective sites at or near Fermi Lab that have

been identified for their topographic or geologic advantages. Develop a reference site by utilizing available data from a real

site with ideal attributes for comparison. Prepare a matrix tool in order to identify and assess the salient

features of the prospective and reference sites. Collaborate with colleagues at KEK and DESY for inclusion of

their site assessment criteria into the comparative matrix. Identify and assess civil design solution for alternative machine

configuration and options. Present a complete and collaborative sets of data for the

assessment of ILC sample sites, as well as for civil option studies at Snowmass.

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Fred Asiri-7

Proposed ILC Alignment(30 miles long)

B.C. (TRIUMF)

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Fred Asiri

– Conventional Facilities Site Considerations “Draft”Purpose; To develop suitable criteria to assess the identified sample regional

sites in order to chose a sample regional site for preparation of CDR.

Following is a top level list of criteria that have been considered:

1. Site Impacts on critical Science Parameters2. Scientific/Institutional Support Base3. Land Acquisition4. Environmental Impacts5. Construction Cost Impacts6. Operation Cost Impacts7. Environmental, Safety & Health8. Regional Infrastructure Support9. Risk Factors

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Fred Asiri

– Civil Option Studies Considered “Draft”To present a detailed assessment of major trade-off choices in order to reach

decision at Snowmass or soon after (in time ) for preparation of CDR.

Following is a partial list trade-off choices that have been considered:

1. Provision for extension for upgrade to 1 TeV 2. Linac tunnel depth 3. Tunnel vertical profile4. Linac tunnel and service tunnel arrangement5. Damping ring style6. Damping ring construction 7. Crossing angles and dumps8. Number of IR’s (one vs. two)9. Dual IR issues

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Fred Asiri

– Milestone No. 2 – December 2005 Refine and complete the assessments of all the identified

Northern Illinois site. Down select to one factual well documented sample site. Compare the sample site with the reference site in details. Clearly define and explain trade-offs and alternatives. Prepare an assessment report covering the above. This report will be reviewed with DOE for determining

the U.S. regional sample site. The chosen U.S. regional sample site along with the other

international regional sample sites will be used for the CDR.

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Fred Asiri

– Milestone No. 3 – December 2006 Combine with the machine and detector configuration and

parameters to formulate a complete sets of requirement. Characterize clearly major options for the trade-off studies. Develop the U.S. sample site CF of the CDR including the

detailed evaluation of the trade-off studies. This CDR is not envisioned to be in accordance with the

DOE Project Management Order at this time. DOE Rule of Thumb is 1% of Civil Cost Estimate for DOE Rule of Thumb is 1% of Civil Cost Estimate for

Conceptual Design Report.Conceptual Design Report. For a ~$1B Construction Project that Represents For a ~$1B Construction Project that Represents a CDR a CDR

Cost of Cost of $10M.$10M. Hence the Need for Definition of the DeliverableHence the Need for Definition of the Deliverable

an overview of conventional facilities (civil construction)

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