Demolition Concrete Demolition Hammers

E36-2-34. Dismantling temporary trays from blocks in the shaft

Guidelines for the application of standards

The norms of this paragraph provide for the disassembly of the temporary tray from the blocks laid in the shaft when the tunneling shield is put into the face.

Drifter 5 pits.

Rates of time and prices for 1 m tray

1. Bending of mounting loops. 2. Disconnection of blocks between themselves with a crowbar or jackhammer. 3. Lanyard block

E36-2-35. Arrangement and dismantling of an emphasis for panel jacks in a mine shaft

Guidelines for the application of standards

The emphasis is on the full diameter of the log shield in two rows.

The vertical row is buried in the ground, the horizontal heel to the vertical and sheathed with boards.

In the shaft shaft, a circular sinus section between the emphasis and the support of the barrel walls is covered with sand with a layer-by-layer tamping.

Scope of work

When the device stops and backfill sinuses

1. Digging a trench. 2. An emphasis device with fastening of elements by brackets. 3. Covering the stop with boards. 4. Backfilling of the sinuses with sand and layer-by-layer compaction.

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When disassembling the stop

1. Removing boards. 2. Pulling out staples. 3. Dismantling the stop.

Drifter 5 pits.

Standards of time and rates of 1 emphasis

E36-2-36. Breakdown of the reinforced concrete ceiling of the caisson

Drifter 5 pits.

Standards of time and prices for 1 m 3 reinforced concrete in the structure

Class (brand) of concrete

1. Breaking the reinforced concrete ceiling of the caisson with jackhammers. 2. Loading concrete in tubs. 3. Cutting reinforcement. 4. The device and the permutation of the scaffolds. 5. Watering the dismountable structure with water from a hose

SECTION II. PASSING OF HORIZONTAL AND INCLINED OPERATIONS

Chapter 6. SOIL DEVELOPMENT

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TECHNICAL PART

1. The provisions of this chapter provide for the development of soil in horizontal and inclined underground workings when driving with shields or tubing and block pavers, with a dead face or with an advanced adit and mining method with the cleaning of the soil with rock loaders or manually.

2. In the paragraphs of the norms, depending on the hydrogeological conditions, the development of soil by a mechanized shield, a blasting method, jack hammers and manually is provided.

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3. Norms and prices stipulate drilling of holes with a purge of compressed air or flushing with water.

E36-2-37. Tunneling with mechanized shields

Technical characteristics of mechanized shields

Demolition Concrete Demolition Hammers

Kiev for tunnels with a diameter of 3.6 drive

Core cutters and blade knives

Guidelines for the application of standards

The provisions of this paragraph provide for the construction of tunnels with mechanized shields with simultaneous loading of soil onto scraper or belt conveyors and through a hopper or reloader into trolleys with a capacity of 0.75-1.5 m 3.

Tunnels with a diameter of 5.5-6 m pass simultaneously with two faces or more, one of which is developed with a mechanized shield; collector tunnels pass through one face with a mechanized shield.

Table rates 5 provides for the haulage of trolleys with soil by an electric battery and the delivery of soil to the surface by a mine hoist.

Scope of work

When cutting soil

1. Cutting the soil while loading it onto the conveyor. 2. Moving the shield with jacks for the value of the entry made.

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When loading soil

1. Opening the hopper. 2. Loading the trolley with soil. 3. Leveling the soil in trolleys. 4. Rearrangement of the shield as the trolley is filled with soil. 5. Cleaning the soil, waking up from the hopper on the way.

When cleaning the soil between the knife part of the shield and the jack sheet

1. Ejecting the soil manually through the hole of the cutting body. 2. Loading soil into the trolley.

When cleaning the cutting unit and leaks

1. Cleaning the cutting body of the shield and leaks from the ground. 2. Loading soil on the conveyor.

Formation of the composition of trolleys

1. Reception of the composition of trolleys. 2. Submission of a signal to the driver of an electric locomotive during maneuvers and translation of arrows. 3. Rolling individual trolleys and hooking them to the train.

TUNNEL PASSING WITH A DIAMETER OF 5.5-6 m

Date Added: 2018-11-24; views: 91;