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crushed line backfilling

Backfilling Trenches and Other Excavations

Backfilling is the process of putting the soil back into a trench or foundation once excavation, and the related work has been completed. The backfill process requires skills and heavy equipment as well as knowledge of the …

Enbridge Pipeline Trench Backfill Plan - August 17, 2010

Enbridge Line 6B MP 608 Marshall, Michigan Pipeline Release Pipeline Trench Backfill Plan August 17, 2010 ... The bottom of the excavation is currently covered with crushed stone to provide stability for ... Backfilling the excavation will need to be performed in a number of sequential steps. The intent

WOODEN POLES FOR POWER LINES HOLE ... - TRANSMISSION LINE

The rock backfill should be crusher run, a maximum of 2 1/2 inches in size, and having a minimum of two faces fractured and 95% crushed. Alternate Backfill Polyurethane may be used as a backfill material, in lieu of native or granular backfill, as it develops excellent uplift and bearing resistance.

SECTION 02220 EXCAVATION, BACKFILLING, AND …

A. Excavation, backfilling, and compaction for sanitary sewer pipelines, service lines, ... damaged utility or service line. C. The Contractor shall comply with the Arkansas One-Call System and shall alert ... materials such as crushed stone or rock, broken coral, crushed slag, cinders, or crushed shells.

SECTION 31 23 23 UTILITY BACKFILL MATERIALS PART 1: …

embedment where crushed stone is shown on applicable utility embedment drawing details. 6. Crushed Concrete: Crushed concrete is an acceptable substitute for crushed stone as utility backfill. Gradation and quality control test requirements are same as crushed stone. Provide crushed concrete

Recycling of crushed waste rock as backfilling material in ...

The crushed waste rock is used to directly backfill goafs and certain lateral pressures are applied, so that waste rocks for backfilling reach certain compactness in advance and make full contact with the roof (Li et al. 2016; Zhou et al. 2017). After filling crushed waste rocks into goafs, crushed waste rock is gradually deformed due to ...

17070/Trenching & Backfilling for Piping Systems

B. Backfill material containing limerock shall have sufficient sand to fill the voids in the limerock. ... B. Crushed stone (or drainfield limerock) shall be used for bedding of piping (except for copper ... prop erty line restrictions, existing adjacent improvements including pavements, structures, and other ...

Backfilling Pipe Trenches - constructionmentor.net

The ideal material for pipe trench backfill under pavements is crushed limestone with rock ranging from fines all the way up to 2-1/2″. Properly graded crushed limestone has just the right balance of aggregate sizes and square shaped aggregate to ensure interlocking of the particles which will ultimately maximize density, strength, and resist ...

Pipe Bedding and Backfill

A line load at the top and bottom of a pipe is the worst possible loading case. If the load can be distributed over a large area at the top and at the bottom of the pipe. the pipe walls will not have to be designed as strong as for a line load. The backfill load is normally well distributed over the top of the pipe. However, proper

backfill - what do you like? | Terry Love Plumbing Advice ...

3/4 crushed rock for plastic pipe backfill??? You guys kidding? Maybe tucked away under a house for a french drain or septic, but against all norm and specs for a pipe under any sort of traffic or heavy fill. Fill sand, to local specs and sometimes fine pea gravel. 3/4 crush is sabotage, not backfill.

SPECIFICATIONS FOR SUPPLYING AND PLACING BACKFILL

7.1 Type 1 – Granular Backfill and Type 2 – Culvert Gravel Supplying and placing of granular backfill and culvert gravel will be measured on a mass basis of hauled material. Weigh scale tickets for each truck shall be provided to the Engineer or his representative for verification and approval prior to unloading of backfill material.

02210 - TRENCHING, BACKFILLING AND COMPACTION OF …

A. Backfill: Soil materials used to fill an excavated trench: 1) Initial Backfill (Select Earth Backfill): Backfill placed beside and 12 inches over the top of the pipe in a trench, including haunches to support sides of pipe. 2) Final Backfill (Common Earth Backfill): Backfill placed over the initial backfill …

SECTION 19 - TRENCH EXCAVATION, BEDDING AND …

Crushed rock or gravel shall conform to Section 50-14, "Crushed Rock", of these Specifications. Sand backfill, when permitted by the Agency, shall conform to the requirements in Section 50-13.01, "River Sand", of these Specifications. Such backfill material shall be compacted to a minimum relative compaction of ninety percent (90%).

Recycling of crushed waste rock as backfilling material in ...

Crushed waste rocks can be used as materials for backfilling goafs, so as to achieve the simultaneous goals of processing solid waste and controlling surface subsidence; however, particle size distribution directly affects the compaction of crushed waste rocks. Therefore, by employing a self-designe …

STANDARD SPECIFICATIONS

c. Initial Backfill Zone: Area from top of Haunching Zone up to as far as 1 foot above top of pipe and extending to full width of trench shown in Standard Details or specified herein. 2. Final Backfill Zone: Area from top of Pipe Embedment Zone to finished grade, extending full width of trench shown in Standard Details. 3.

Backfilling Trenches and Other Excavations

Backfilling is the process of putting the soil back into a trench or foundation once excavation, and the related work has been completed. The backfill process requires skills and heavy equipment as well as knowledge of the specifications, contract requirements, and soil conditions.

SECTION 10 - TRENCHING AND BACKFILLING

(1.) Crushed or recycled concrete shall not be used as backfill. (2.) Fly ash shall not be used as pipe backfill. 10.2.3 Structural Backfill A. Structural backfill shall meet requirements for coarse aggregate, Size No. 57 for non-pressure pipe in accordance with VDOT Road and Bridge Specifications.

SECTION 3730 - BEDDING AND BACKFILL FOR GRAVITY …

2.3 BACKFILLING UNDER ROADS AND STREETS: A. When a sewer line is constructed within a road, st reet or driveway, trench backfill shall be placed per Section 1165. When a sewer line is constructed with in a proposed road, street, or driveway, backfill shall be compacted according to the Butler County Engineer's Office compaction requirements.

Pros and Cons of backfilling foundation with gravel ...

Subject line pretty much says it all. Has anyone here done this on a new home being constructed with a full basement underground? The builder wants to backfill with the existing dirt from the excavation, but I told him to use gravel or crushed stone instead of the high clay content soil to better promote drainage. Are there any drawbacks in