CN106638212A

CN106638212A - Mine roadway early strength concrete construction method

Info

Publication number: CN106638212A
Application number: CN201510716794.6A
Authority: CN
Inventors: 吴龙泉; 朱友恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-10-30
Filing date: 2015-10-30
Publication date: 2017-05-10

Abstract

The invention relates to a mine roadway early-strength and high-strength concrete construction method, which comprises: cleaning a mine roadway base surface, paving a hard aggregate, paving early strength concrete, and other steps, wherein the mine roadway base surface cleaning requirements comprise that all impurities including mud, gravel, coal ash and the like are cleaned out until the hard base ground is exposed, the surface water is completely sucked out and no visible water exists on the base surface, the hard aggregate paving step comprises that a layer of stones with a particle size of 2-4 cm is uniformly paved on the cleaned base surface, and the early strength concrete paving step comprises that the paved early strength concrete is the concrete added with an early strength admixture and can achieve C20 after 24 h. With the construction method of the present invention, the tunneling speed in the mine roadway can be substantially improved.

Description

A kind of mine laneway early strength concrete construction method

Patent of the present invention provides a kind of construction method of mine laneway early strengthening and high strengthening concrete, belongs to concrete works technical field.Institute Stating a kind of mine laneway early strength concrete construction method is：The cleaning of mine laneway basal plane, laying tough aggregate, the early strong coagulation of laying The steps such as soil are constituted.The cleaning of described mine laneway basal plane requires basal plane all of impurity in tunnel to include mud, rubble, coal Ash etc. is all disposed, until spilling hard base, silt water is drained only, and basal plane can not have open fire；Described laying tough aggregate be The stone of one layer of particle diameter 2-4cm is uniformly laid on basal plane after cleaning, described laying early strength concrete is added outside early strong Plus the concrete of agent, the concrete can reach C20 in 24 hours.

Patent of the present invention is related to a kind of structure material, more particularly to a kind of construction method of mine laneway early strengthening and high strengthening concrete.

Background technology

Typically all lay concrete road surface in mine laneway each at home at present, but because the early strength of concrete is low, typically spread If after the moisture-keeping maintaining of 14～21 days is needed after concrete, intensity can be only achieved the use requirement of road traffic, vehicle in curing period Transport cannot pass through, and to the excavation speed for making follow-up equipment to keep up with development machine, the speed and depth of mine development end be delayed significantly Degree, to production very big inconvenience is brought, and how to make the early strength of raising cement concrete pavement, to shorten its curing time, is subtracted Few impact to producing is problem demanding prompt solution.

Patent of invention content

For the defect that prior art is present, the purpose of patent of the present invention is to provide a kind of construction of mine laneway early strengthening and high strengthening concrete Method, this construction method can be to make concrete that C20 was reached in 24 hours, and the performance of concrete each side is not less than commonly The performance indications of concrete, so as to improve the driving speed of mine laneway.

The construction method purpose of patent of the present invention is achieved by the following scheme：

A kind of construction method of mine laneway early strengthening and high strengthening concrete, its construction method is as follows：

Carry out basal plane cleaning to mine laneway first, the cleaning of described mine laneway basal plane requires basal plane all of impurity in tunnel to include Mud, rubble, coal ash etc. are all disposed, until spilling hard substrate, silt water is drained only, and basal plane can not have open fire；

And then lay one layer of stone on the basal plane after cleaning, described laying tough aggregate is uniform laying one on basal plane after the cleaning The stone of layer particle diameter 2-4cm,

Early strength concrete is finally laid, described laying early strength concrete is the concrete for adding early strong additive, and its concrete is 24 C20 is can reach in hour.

Patent of the present invention is processed by the basal plane to mine laneway, then re-lays one layer of stone, then re-lays early strength concrete Method making the concrete in mine laneway reach early strong purpose, the curing time of concrete is substantially reduced, so as to save Make an appointment, to accelerate driving speed in mine facility is provided.

Further illustrate how patent of the present invention is realized with reference to specific embodiment：

Embodiment 1

First the basal plane of mine laneway cleared up first, all of impurity is included that mud, rubble, coal ash etc. are all disposed, directly To hard base is spilt, silt water is drained only, and basal plane can not have open fire；Afterwards the basal plane after cleaning out lays one with uniform The stone of layer particle diameter 2-4cm；Then again adding early, by force the concrete of additive is routed to above stone layer, and uses vibrating spear Vibrated, last floating, receipts light.

Claims

1. a kind of mine laneway early strength concrete construction method：The step of its special type is the construction method for mine laneway basal plane cleaning, laying tough aggregate, laying early strength concrete etc. step composition.

2. a kind of mine laneway early strength concrete construction method according to claim 1, it is characterized in that the cleaning of described mine laneway basal plane requires basal plane all of impurity in tunnel to include that mud, rubble, coal ash etc. are all disposed, until spilling hard base, silt water is drained only, and basal plane can not have open fire.

3. a kind of mine laneway early strength concrete construction method according to claim 1, it is characterised in that described laying tough aggregate is the uniform stone of one layer of particle diameter 2-4cm of laying on basal plane after the cleaning.

4. a kind of mine laneway early strength concrete construction method according to claim 1, it is characterised in that described laying early strength concrete is the concrete for adding early strong additive, the concrete can reach C20 in 24 hours.