Embankments a. After the completion of drainage and Utility Adjustments and prior to backfill;
b. After clearing, grubbing, and excavation to check subgrade;
c. Per specifications for lift requirements at 5 foot intervals of embankment construction;
d. After the completion of mechanically stabilized earth (MSE) wall panel placement; and
e. At the completion of embankment placement to establish the settlement monitoring baseline.
Embankments. Areas of embankment are inspected to identify instability, including cracks, horizontal or vertical movement, slope failure, or seepage.
Embankments. Where the height is greater than 200mm the embankment shall be treated sleeper wall where not visible from the street and all walls visible from the street shall be split block masonry. No other type of wall is to be constructed unless specifically approved by Harmony Glades Pty Ltd.
Embankments. (i) The tops and bottoms of all embankments in soil shall be rounded to a minimum radius of two metres over a length of one metre or, where space does not permit, to the maximum radius possible, proposals for which shall be submitted to the Scottish Ministers for agreement.
(ii) Where an embankment is constructed on any existing slope, the existing surface shall be benched. The maximum height of the bench shall be 500 millimetres.
(iii) Topsoil and pockets of soft-soil and loose rock shall be removed from beneath embankments, except where alternative measures in accordance with the New Works Requirements and Specification are proposed in the design of the New Works.
(iv) Where any areas of old watercourses (infilled or otherwise) occur under a section of new embankment they shall be excavated and replaced with a well compacted suitable granular fill.
(v) The Company shall take measures to ensure that the settlement of embankments shall be substantially complete before the road pavement shall be constructed.
Embankments. Based on information from the existing Feasibility Study, dated 2008, 81 sections of proposed embankment have been identified, comprising some 52.1km of the proposed route. At Feasibility Stage, information is required to make an initial assessment of embankment stability and settlement. Table 3 of Annex A to this Terms of Reference, includes an inventory of ground investigations data available in the existing Feasibility Study and comments on adequacy of data, as well as, required additional boreholes. It is considered that to adequately inform the Feasibility Study, a further 225 boreholes are required. The location and depth of boreholes shall be proposed by the Consultant following the desk study stage. The desk study shall also identify areas of high geotechnical risk so that areas of investigation can be targeted accordingly. It is also essential that the new boreholes, whether Phase 1 or Phase 2, satisfy the following minimum criteria: • Boreholes should be positioned so that adequate coverage of embankments is achieved. It will be necessary to locate boreholes at certain critical sections, such as, high sections of embankment or areas of suspected poor or variable ground; • The depth of boreholes shall reflect the height of the proposed embankments. Higher embankments will tend to give rise to stability and settlement issues at greater depths and boreholes must be specified to reach these depths; • Prior to commencement of ground investigations on site, the Consultant shall develop a specification for in-situ testing for all new boreholes. The SPT (standard penetration test) test (or similar) will be required, for example, to provide information on soil strength and stiffness; • In-situ groundwater monitoring data; • The Consultant shall develop a specification for laboratory testing in order to adequately characterise each strata. These tests, as a minimum, should provide classification, strength, stiffness, permeability and geochemical data. Based on information from the existing Feasibility Study, dated 2008, 76 sections of cutting have been identified and these constitute 25.3km of the proposed route. For the purpose of the new Feasibility Study, it is necessary to make an initial assessment on the stability of cutting slopes. Table 4 of Annex A to this Terms of Reference includes an inventory of ground investigations data available in the existing Feasibility Study and comments on adequacy of data, as well as, requirements for additional boreh...
Embankments. Backfilling trenches with excavated products with special compaction requirements m3 228,00 A3.2 Backfilling of trenches with brittle quarry material, for a total backfill thickness of more than 50 cm m3 2.120,00 A3.3 Laying and formwork of pipes with quarry sand m3 645,00 A3.4 Sanitizing layers with brittle quarry material m3 110,00 A4.1 Diesel or electric pump sets from 2 to 5 HP h 60 A5.1 Trench side supports with metal curtains m2 1.156,00
Embankments. Some BRCs/PLDs utilize irrigated turf grass embankment to store the WQCV.
Embankments. Some SFBs utilize irrigated turf grass embankments to store the required volume.
Embankments. (a) Density, Any Method 303.04(h) One (1) test per 2500 yd3 or less plus: (a) for fills less than 500 ft. length one (1) test on every other 6-in. layer bottom to top of fill starting with the second lift; (b) for fills from 500-2000 ft. length, two (2) tests per 6-in. layer within top five (5) ft. of fill; (c) for fills greater than 2000 ft length, break into equal segments not to exceed 2000 ft. and use same frequency for each section as for fills 500 to 2000 ft. in length. Roadway When tests are not run due to gravel, muck, rock, etc. give station and depth on report in lieu of test, with reason. For nuclear test, use Direct Transmission Method, VTM-10. See Notes 1 and 2.
