13 Tháng Chín Download:: 2. nh mc d ton xy dng cng trnh – Phn Xy dng cng b km theo vn bn s /BXD-VP ca B Xy dng Download:. – nh mc /BXD-VP. 28 Tháng Mười Vn bn s /BXD-VP ngy 16/8/ ca B Xy dng cng b nh mc d ton xydng cng trnh – Phn Xy dng. – Vn bn s 21/SXD-KTXD ngy 09/01/ ca S. Decision No//QD-BXD dated on 29 September issued by MOC Norm No//BXD-VP dated on 16 August issued by MOC.
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The measurement shall include unavoidable over-breakage due to slides when not attributable to carelessness of the Contractor. The quantity of Unsuitable Material, excavated according to this Specification section and approved by the Engineer, shall be measured in cubic meter. The material shall be measured in the original position in the natural ground after Site Clearing and Grubbing. The contract form is adjustable unit price-based, specifying that the contract price can be adjusted when there are changes in regimes, policies by the Government and material price, or when there are changes in construction price indices announced by state agencies.
Waste areas shall be left in a smooth, neat and drainable condition, as required by the Engineer, and all waste material shall be placed in such manner that adjacent property will not be damaged or endangered. Variation, delays or failing on this condition and the application of countermeasures to correct respective defects will be evaluated by the Engineer in accordance with the statements of the Conditions of Contract and will be charged to the Contractor expenses without any time extension.
No materials shall be wasted without previous quantification by the Contractor and respective approval by the Engineer.
The actual excavation volume shall be computed from the average cross section areas bounded by the ground lines after clearing and grubbing, the designed slope lines, and plane after excavation of unsuitable material. Boulders shall comprise solid pieces of rock that are weathered on all faces boulders that are between 0. The material to be disposed as unsuitable material shall not be wasted until approved or directed in writing by the Engineer.
Keynote TCVN in Revit – [TXT Document]
Finished excavated surfaces that are exposed to surface run-off water shall be sufficiently smooth and uniform, and have sufficient slope, to ensure the free drainage of the surface with no ponding. Duc asks for advice on how bd proceed the above case? If in the adjustable unit price-based contract there is a clause specifying that the contract price can be adjusted when there are changes in regimes, policies by the Government and material price, or when there are changes in construction price indices announced by state agencies, the adjustment of contract price per norms announced 11776 the Ministry of Construction is acceptable.
Measurement of boulders will taken as the maximum dimension along the longest axis of the boulder length multiplied by?
All excavations shall be finished to reasonably smooth and uniform surfaces. This soil class includes all the types of soil bxxd by hand and by v described in the Tables of Soil Classification applying for soil excavation, transportation, filling works by hand and machine in the Norm of Cost Estimation for Construction enclosed with the Document No.
This plan shall be continuously updated, in weekly basis, in accordance with the progress of the works until completion of the roadway excavation. However, boulders that although exceeding the above stated volume can be disposed out of the Project area by using common equipment for transportation without necessity of blasting or pulverization shall not be considered as rock excavation.
Payment for such compaction shall deem to be included in the unit rate for excavation. Soft rock shall comprise weathered rock, sandstone, limestone and such materials which, in the opinion of the Engineer, can be excavated by picking, ripping or other similar means without resorting to blasting.
Boulders that are less than the stated volume shall be measured as soil excavation. Excavation operations shall be conducted so that material outside of the limits of slopes will not be disturbed.
Hard rock shall not include material which, in the opinion of the Engineer, can be loosened or excavated with standard equipment tractors or backhoe. The removed topsoil shall be transported and deposited with the height not in excess of 3m to avoid disturb to natural ground in storage piles at locations previously prepared by the Contractor and approved by the Engineer. Boulders that exceed the above stated volume and cannot be pulverized without the use of pneumatic tools, drilling and blasting operations, or by standard tractor or backhoe, shall be classified as Hard Rock.
Materials below the natural ground surface in embankment areas and in excavation areas below the grading plane or other 17776 shown on the Drawings, or as designated by the Engineer, that is unsuitable for the planned use. Materials having hazardous chemical or physical properties.
The price adjustment per the signed contract is consistent with regulations applicable to construction contracts. Highly expansive soil having an Activity value greater than 1. No allowance will be made for classification of v types of material or soil encountered.
The Ministry of Construction answered: Wed, 07 Jun If in the adjustable unit price-based contract does vo exist a clause specifying that the contract price can be adjusted when there are changes in regimes, policies by the Government and material price, or when there are changes in construction price indices announced by State bodies, the adjustment of contract price per norms announced by the Ministry of Construction is not acceptable. This rock class includes the type of rock grade 4 described in the Table of Rock Classification applying for rock excavation in the Norm of Cost Estimation for Construction enclosed with the Document No.
The quantity of Common Excavation to be paid for shall be the number of cubic meters of material acceptably excavated in accordance with this specification and approved by the Engineer, based on field measurements.
If it becomes necessary for the Contractor to locate or relocate any waste areas, the Contractor shall obtain previously the approval from the Engineer to commence with the operation for spreading any waste.