8−28 Engineer.
805.01 DESCRIPTION. This work consists of the provision of temporary and/or permanent sheet
piling, temporary and/or permanent sheet piling with ground anchors; and soldier piles and lagging, at the locations indicated on the Plans or as directed by the Engineer, all in accordance with these Specifications. Sheet piling shall be untreated timber, treated timber, or rolled steel sections. For sheet piling in cofferdams, refer to Subsection 203.03.2 of these Specifications. Soldier piles shall be steel HP sections or treated or untreated timber piles, and shall be driven or installed in pre-drilled shaft excavations. Lagging shall consist of timber or steel sections which shall span adjacent soldier piles. 805.01.1 Permanent Sheet Piling. Permanent sheet piling and supports shall be furnished, installed, cut-off and left in place as part of the finished structure. The Plans may require the removal of waling and other bracing members. Sheet piling will be of the section, dimension and length as indicated on the Plans. 805.01.2 Temporary Sheet Piling and Temporary Sheet Piling Abandoned in Place.
a.Temporary Sheet Piling shall be installed, maintained, and removed from the job site either after its function has been accomplished or when ordered to do so by the Engineer. Unless otherwise specified, the section, dimension and lengths of sheet piling shall be as determined by the Engineer. The Contractor's attention is directed to the required construction sequence and the temporary sheet piling necessary to accomplish the work in accordance with the Plans and Specifications.
b.Temporary Sheet Piling Abandoned in Place is defined as sheeting used during construction but which is not a necessary structural component of the completed highway facility or bridge structure. Temporary Sheet Piling Abandoned in Place and supports shall be furnished, installed, cut off and left in place as shown on the Plans. The Plans may require the removal of waling and other bracing members. Temporary Sheet Piling Abandoned in Place shall be of the section, dimensions and lengths as specified on the Plans. 805.01.3 Soldier Pile-and-Lagging. Soldier piles-and-lagging shall be furnished, installed, cut off and left in place unless otherwise indicated. The Plans or Special Provisions may require removal or cut-off of piles, and removal of lagging and supports. Soldier pile-and-lagging will be installed to the elevation and be of the section and dimension indicated on the Plans. 8−29805.01.4 Design and Approval of Sheet Piling and Soldier Pile-and-Lagging. Unless otherwise noted on the Plans or Special Provision, sheet piling and soldier piles and lagging shall be installed in accordance with the design and details provided on the Plans. Should the Contractor wish to deviate from the design provided, he shall then submit complete design drawings, computations and layout drawings for the tem porary or permanent sheeting. All drawings and computations shall be prepared and stamped by a Rhode Island Registered Professional Engineer. The shop drawing submittal shall conform to the requirements of Subsection 105.02; Plans and Shop Drawings . Sheet piling or soldier pile-and-lagging located adjacent to railroad property shall also be submitted to the railroad company for t heir review and approval. (See the General Provi- sions/Construction section of the Project Specifications for specific requirements regarding the installation of sheeting adjacent to railroad properties.) 805.01.5 Utilities. The Contractor's attention is specifically directed to the proximity of utilities in the area of the proposed sheeting or pile installation work. In regard thereto, it shall be the Contractor's responsibility to give notice to each public utility whose facilities could be affected by the work forty-eight hours in advance and request that a representative of the utility be present at all times during the work. If a utility refuses and/or fails to send a representative to the work site, when and as requested by the Contractor, the Contractor shall notify the Engineer of such refusal. The Engineer shall then notify the Public Utilities Administrator of the Division of Public Utilities and Carriers of the State of Rhode Island of such refusal and/or failure to appear and request said Administration to order such utility to send a representative to the work site. The Contractor and the Engineer shall maintain detailed records of all such communication regarding the above. 805.02 MATERIALS. 805.02.1 Untreated Timber Sheet Piling shall conform to the requirements of Subsection
M.07.01 of these Specifications.
805.02.2 Treated Timber Sheet Piling shall conform to the requirements of Subsection M.07.02
of these Specifications. 805.02.3 Steel Sheet Piling shall conform to the requirements of Subsection M.07.04 of these Specifications. 805.02.4 Steel Soldier Piles shall conform to the requirements of Subsection M.07.09.
805.02.5 Untreated Timber Soldier Piles shall conform to the requirements of Subsection
M.07.05 .
805.02.6 Treated Timber Soldier Piles shall conform to the requirements of Subsection M.07.06 .
805.02.7 Timber Lagging, Walers, and Bracing shall conform to the requirements of Subsection
M.11.01. 805.02.8 Steel Lagging, Walers, and Bracing shall conform to the requirements of Subsection
M.05.04. 805.02.9 Hardware - Fixtures, Bolts, and Lag Screws shall conform to the applicable requirements of either Subsection M.05.04.4 or Subsection M.05.04.13 of these Specifications 8−30 except as modified by Plans and Special Provisions.
805.02.10 Metal Casings for stabilization of drilled shaft excavations shall conform to the
requirements of Subsection M.07.08.1.
805.02.11 Concrete Backfill for drilled shaft excavations shall be excavatable or lean concrete
which conforms to the requirements of SECTION 603; CONTROLLED LOW STRENGTH MATERIAL , of these Specifications.
805.02.12 Anchors .
a.Anchor Material shall consist of either single or multiple elements of the following:
1.Uncoated seven wire stress relieved strand conforming to the requirements of ASTM A416.
2.Uncoated high-strength steel bars conforming to the requirements of ASTM A722.
b.Bearing Plates, Brackets, Stiffeners, and/or Rolled Steel Shapes shall conform to the requirements of ASTM A709, Grade 36.
c.Sheathing of the unbonded length of a tendon shall consist of one of the following:
1.Seamless polyethylene tube with a minimum wall thickness of 50 mils.
2.Seamless polypropylene tube with a minimum wall thickness of 50 mils.
3.Corrugated polyvinyl chloride tube with a minimum wall thickness of 30 mils.
d.Anchor Grout. The grout to be used for anchorage shall consist of a pumpable mixture of Types I, II, or III Portland cement, sand, water, and admixtures. Chemical additives which can control bleed or retard set may be used with the anchor grout. Additives, if used, shall be in accordance with the manufacturer's recommendations. Expansive additives and accelerators will not be allowed. Portland cement shall conform to the requirements of AASHTO M85. Cement used for grouting shall not contain any lumps or other indications of hydration or "pack set." Water for mixing grout shall be potable, clean, and free from injurious quantities of substances known to be harmful to Portland cement or the anchor steel. The grout shall be capable of reaching a cube compressive strength of 3,500 psi in seven days when tested in accordance with ASTM T106.
e.Grease shall conform to the requirements of ASTM D4950.
f.Centralizers shall be fabricated from plastic, steel, or material which is not detrimental to the anchor tendon. Wood will not be allowed. The centralizer shall be able to maintain the position of the tendon so that a minimum of 0.5-inch of grout cover is obtained on the tendons.
g.Spacers for separation of elements of a multi-element tendon shall permit the free flow of grout and shall be fabricated from plastic, steel, or material which is not detrimental to the anchor tendon. Wood will not be allowed. 8−31
805.03 CONSTRUCTION METHODS. The Contractor shall furnish and install sheet piling or
soldier pile-and-lagging as shown on the Plans or as indicated in the Special Provisions. 805.03.1 General. The Engineer may order additional or stronger bracing and supports at any point where, in his opinion, sufficient and proper bracing and supports have not been provided. The Engineer may order additional temporary sheet piling to be installed when, in his opinion, field conditions make it necessary to properly protect the work under construction or any existing installation affected by the construction. The estimated amount of sheet piling and soldier piles-and-lagging for the Contract, as shown on the Plans or indicated in the Proposal, is the only amount for which the State will make direct reimbursement to the Contractor unless additional sheeting or soldier piles-and-lagging is ordered in writing by the Engineer. Additional temporary sheet piling may also be ordered by the Engineer when indicated by field conditions as specified above. Additional compensation shall be provided for such additional or modified temporary or permanent sheet piling or soldier piles-and-laggi ng which has been directed and/or approved by the Engineer. 805.03.2 Driving Sheet Piling and Soldier Piles. When required by the Plans or Special Provisions, the preconstruction survey of adjac ent structures shall be performed and the findings submitted to the Engineer for his review. No driving shall commence until the Engineer has approved the preconstruction survey. If required in t he Plans or Special Provisions, the Contractor shall perform vibration monitoring during driving of sheeting or piles. The preconstruction survey and vibration monitoring work shall conform to the requirements described in Subsection
804.03 12; Para. a, of these Specifications.
Sheet piling and soldier piles shall be driven reasonably true to the line and depth as indicated on the Plans or as directed by the Engineer. Steam, pneumatic or diesel powered vibratory hammers of appropriate capacity shall be used to drive all sheet piling and soldier piles. Any material which interrupts the driving shall be removed by the Contractor. Soldier piles shall be driven to the location and axial tolerances specified in Para. f of Subsection 804.03.13 of these Specifications, or as otherwise indicated on the Plans.
805.03.3 Pre-drilled Soldier Pile Installation. Soldier piles shall be installed in pre-drilled or pre-
augered holes when required by the Plans or Specia l Provisions, or: 1) when vibratory or impact driving is not permitted; or 2) when obstructions prevent driving and the Engineer authorizes pre- drilling or pre-augering. In the case of 2) above, standard driving shall be resumed when the obstruction has been removed or bypassed. Pre-drilled or pre-augered holes shall be of the diameter shown on the Plans and shall be of sufficiently large diameter such that concrete , lean concrete, or other backfill approved by the Engineer can be installed in the annulus between the soldier pile and the sidewalls of the drilled hole. Drilled or augered holes shall be advanced to the required depth as indicated on the Plans
Source: Rhode Island Standard Specifications (Bluebook), 2024 Edition. Pages 362–365 of 826.