Construction Method of Concrete Surface Layer of Wharf Yard Road

Abstract

The invention discloses a construction method of a wharf storage yard road concrete surface layer. The construction method comprises the following steps: base detection, surveying and setting out, formwork mounting, steel bar mounting, concrete stirring and transporting, concrete vibrating and leveling, formwork removing and curing, and joint treatment and grooving. The construction method is particularly suitable for construction of the wharf storage yard road concrete surface layer with the complex geology, normal operation of all construction links is guaranteed, after unloading, manual initial leveling is adopted, the loose paving coefficient is 1.0-1.3, and the unloading speed and the distributing speed keep in balance; a three-roll-shaft leveling machine is adopted to conduct sectioned levelling according to an operation unit, finish leveling is conducted for two times, a scraping rule leaves from the slurry face at the edge in the push-pull direction, thus scraped slurry is pressed by the scraping rule all the time, and a certain angle between the push-pull direction of the scraping rule and the slurry face is kept; and the concrete structure thickness requirement is met, the design requirement of the bending strength is greater than or equal to 5 MPa, the construction difficulty is lowered, and the needs of road surface layer construction are met.

Description

technical field

[0001] The invention relates to the technical field of road construction, in particular to a construction method for a concrete surface layer of a wharf yard road. Background technique

[0002] In the construction of the wharf yard, the construction scope of the road concrete surface usually covers the road surface within the land area of ​​the berth and the road surface connecting the entry and exit ports. It has high design requirements for the thickness and flexural strength of the concrete structure, and the geographical conditions are complex. , The construction difficulty is high, and the traditional road surface construction technology is difficult to meet the demand. Contents of the invention

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a road concrete surface construction method to meet the construction needs of the wharf yard.

[0004] The technical scheme that the present inventi...

Examples

Embodiment Construction

[0050] A construction method for the road concrete surface of a wharf yard of the present invention comprises the following steps:

[0051] Step 1: Substrate detection

[0052] Before the construction of the road concrete surface, ensure that the compaction degree of the water stable base in the filling section is ≥ 97%, the deflection value is < 43.3 (1 / 100mm) and the compressive strength is ≥ 3MPa, and the compressive strength of the roller compacted concrete base in the excavation section is ≥ 4MPa, bending and tensile strength ≥ 2MPa;

[0053] Step 2: Measure and set-out

[0054] After the water-stabilized and roller-compacted concrete base has been checked and accepted, the construction line is set out, the center line and side piles are placed, and the concrete block line of the construction drawing is checked on site;

[0055] Step 3: Template Installation

[0056] The formwork adopts shaped steel formwork, and the thickness of the formwork is the same as that of the...

technical field

[0001] The invention relates to the technical field of road construction, in particular to a construction method for a concrete surface layer of a wharf yard road. Background technique

[0002] In the construction of the wharf yard, the construction scope of the road concrete surface usually covers the road surface within the land area of ​​the berth and the road surface connecting the entry and exit ports. It has high design requirements for the thickness and flexural strength of the concrete structure, and the geographical conditions are complex. , The construction difficulty is high, and the traditional road surface construction technology is difficult to meet the demand. Contents of the invention

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides a road concrete surface construction method to meet the construction needs of the wharf yard.

[0004] The technical scheme that the present inventi...

Examples

Embodiment Construction

[0050] A construction method for the road concrete surface of a wharf yard of the present invention comprises the following steps:

[0051] Step 1: Substrate detection

[0052] Before the construction of the road concrete surface, ensure that the compaction degree of the water stable base in the filling section is ≥ 97%, the deflection value is < 43.3 (1 / 100mm) and the compressive strength is ≥ 3MPa, and the compressive strength of the roller compacted concrete base in the excavation section is ≥ 4MPa, bending and tensile strength ≥ 2MPa;

[0053] Step 2: Measure and set-out

[0054] After the water-stabilized and roller-compacted concrete base has been checked and accepted, the construction line is set out, the center line and side piles are placed, and the concrete block line of the construction drawing is checked on site;

[0055] Step 3: Template Installation

[0056] The formwork adopts shaped steel formwork, and the thickness of the formwork is the same as that of the...