CN108071107A

CN108071107A - A kind of foundation construction technique

Info

Publication number: CN108071107A
Application number: CN201711158719.8A
Authority: CN
Inventors: 宋月飞
Original assignee: Zhejiang Innovation Building Design Co Ltd
Current assignee: Zhejiang Innovation Building Design Co Ltd
Priority date: 2017-11-20
Filing date: 2017-11-20
Publication date: 2018-05-25
Anticipated expiration: 2037-11-20
Also published as: CN108071107B

Abstract

The invention discloses a kind of foundation construction techniques, mainly include the following steps：Step S1 in the uniform spread curing agent in foundation of road bed surface, then is used as bed course after being paved and rolled using grit；Step S2 sets one layer of soluble film in bed course assembling reinforcement stratum reticulare, and on reinforcing bar stratum reticulare upper berth, and then uniform on soluble film spread is semi-rigid goes to a grassroots level；Step S3 is laid with one layer of seepage brick compacted lift in the semi-rigid upper surface of going to a grassroots level；Step S4, above the seepage brick compacted lift again uniform spread it is semi-rigid on base；Step S5, it is described it is semi-rigid on the mixture bed of material of rubble and epoxy resin filled above base be then compacted；Step S6, one layer of spread is used for the emulsified asphalt layer of the epoxy resin layer fixed bonding on the mixture bed of material after compaction, and the seepage of water of ground of the present invention is good, is avoided the situation that ground basal plane ponding occurs, and then is not influenced the effect that ground is open to traffic.

Description

A kind of foundation construction technique

Technical field

The present invention relates to foundation construction technical field, more particularly to a kind of foundation construction technique.

Background technology

At present, during foundation construction, sequence of construction arrangement：Interim sidewalk → clear table dredging → earth work is filled out Build → drainage construction → branch draining pipe construction → pipeline construction → base → basal plane.It, can be with for most inferior grade foundation surfaces To traditionally sealing material (surface resin, asphalt or emulsified asphalt etc.) it be open to traffic afterwards by spread, compacting, leveling.

However, by be subject to traditionally sealing material performance limit (mainly its viscous stickiness, water proofing property and wearability Difference), usually after construction is completed and is open to traffic, it will occur to cause ground basal plane ponding because seepage of water is low within a very short time Situation occur, the final ground that influences is open to traffic.

The content of the invention

In view of the deficiencies of the prior art, the present invention provides a kind of foundation construction technique, the seepage of water of ground is good, keeps away The situation for having exempted from the ponding of ground basal plane occurs, and then does not influence the effect that ground is open to traffic.

To achieve the above object, the present invention provides following technical solutions：A kind of foundation construction technique mainly includes as follows Step：Step S1 in the uniform spread curing agent in foundation of road bed surface, then is used as pad after being paved and rolled using grit Layer；Step S2 sets one layer of soluble film in bed course assembling reinforcement stratum reticulare, and on reinforcing bar stratum reticulare upper berth, then soluble thin It is uniform on film that spread is semi-rigid goes to a grassroots level；Step S3 is laid with one layer of seepage brick compacting in the semi-rigid upper surface of going to a grassroots level Layer；Step S4, above the seepage brick compacted lift again uniform spread it is semi-rigid on base；Step S5, it is described it is semi-rigid on Above base then the mixture bed of material of filling rubble and epoxy resin is compacted；Step S6, mixed material after compaction One layer of spread is used for the emulsified asphalt layer of the epoxy resin layer fixed bonding on layer.

Through the above technical solutions, caused by the expansion and contraction of gum components in subsoil subgrade settlement, The problems such as local subsidence, slope failure and basal plane deform, thus it is cured using soil-solidified-agent, strengthen ground The structural strength of bottom, grit achieve the purpose that convenient for infiltration, in addition, can not be after bed course paves and rolls above it The materials such as cement are stacked, avoiding blocking the hole between grit influences seepage of water；Soluble film has semi-rigid upper base There is iris action, semi-rigid upper base course can be avoided all to be flowed into reinforcing bar stratum reticulare, thus influence oozing for ground lower part Water effect；The mixture bed of material of filling rubble and epoxy resin causes ground to have preferable permeable effect above semi-rigid upper base Fruit, the situation for avoiding the ponding of ground basal plane occurs, and then does not influence the effect that ground is open to traffic；Last emulsified asphalt Layer is for reinforcing permeable layer, and due to rubble with epoxy resin to be stirred, degree of being completely embedded between the two is relatively low, The two can be further bonded by emulsified bituminous materials so that all rubbles and epoxy resin closely bond.

It is of the invention further, polymer fiber additive is contained in the emulsified asphalt layer.

Through the above technical solutions, polymer fiber additive, which is added in emulsified asphalt layer, can effectively control emulsified asphalt layer Gu microcrack caused by the factors such as plastic shrinkage, drying shrinkage, temperature change prevents and restrains the formation and development in crack, changes significantly It has been apt to the anti-cracking impervious performance of ground, shock resistance and shock resistance.

Of the invention further, in the step S5, first the upper hair of base is laid with one layer of waterproof bonding on semi-rigid Oxidant layer.

Through the above technical solutions, waterproof binding agent layer has cementability, it can be by the rubble and epoxy resin of filling The mixture bed of material be adhered in semi-rigid upper base, so as to which rubble and epoxy resin can be retained on the basis of existing roadbed, Without being lost in.

It is of the invention further, include steel fibre additive in the semi-rigid upper base.

Through the above technical solutions, the upper foundation base intension of rigidity can be improved by the steel fibre additive of addition, so that Semi-rigid upper base is able to maintain that smooth, during the mixture bed of material for filling rubble and epoxy resin above it, half just Xing Shang bases will not generate recess, maintain its profile pattern, so as to realize that waterproof binding agent has given play to higher bonding Performance improves bonding between semi-rigid upper base and the mixture bed of material.

It is of the invention further, in the step S1, grit is sieved after twice, the aperture of sieve is the sieve of 25mm for the first time Net, the aperture of second of sieve are the sieve of 12mm.

Through the above technical solutions, after grit is screened by first time sieve, that grain size is more than 25mm can be screened out Grain, and it is less than the sandstone of 12mm by screening out grain size after programmed screening, so as to screen out the particle that grain size is less than 12mm, so as to spread It is disclosure satisfy that after on roadbed with homogeneous hole, achieved the effect that convenient for draining.

Of the invention further, the soil-solidified-agent includes flyash, desulfurated plaster, quick lime and aluminum sulfate.

Through the above technical solutions, by hydration, flyash reacts under the action of water generates aquation silicic acid Calcium, desulfurated plaster, quick lime react under the action of water generates aquation calcium sulfate, aluminum sulfate aquation sulphur under the action of water Sour calcium intersects between product, ultimately forms stable chain or net structure, improve the phase between soil particle Mutual combination so that soil is more firm and is imbued with durability.

Of the invention further, the seepage brick in the seepage brick compacted lift is made of portland cement, silicon manganese slag.

Through the above technical solutions, using infiltration of the seepage brick that these above-mentioned material preparations obtain compared to conventional lightweight Brick with certain weight, is laid on the semi-rigid top gone to a grassroots level, and can apply downward pressure to semi-rigid go to a grassroots level Power can be crossed semi-rigid compacting of going to a grassroots level, and the semi-rigid toughness gone to a grassroots level further improves after compacting, is not easy so as to reach The purpose in existing crack.

In conclusion the foundation construction technique of the present invention, by using flyash, desulfurated plaster, quick lime and aluminum sulfate Base is cured, strengthen ground basal part structural strength, the grit compound water seepage condition of excessively secondary sieve, in addition, Bed course can not stack the materials such as cement above it after paving and rolling, and avoiding blocking the hole between grit influences infiltration Property；Soluble film has iris action to semi-rigid upper base, and semi-rigid upper base course can be avoided all to be flowed into steel In rib net layer, the infiltration effect of ground lower part is thus influenced；Moreover, using polymer fiber additive and steel fibre additive Caking property between layers is improved, foundation structure intensity is more secured, and the present invention considers the money of foundation surface rainwater Source makes full use of the targets such as rainwater resource, will when needing water resource to realize water suction, water storage to foundation surface rainwater The rainwater suction of collection is put, it is achieved thereby that being maximized to rainwater resources utilization efficiency, and can reduce rainfall runoff to the greatest extent Pollution mitigates ground rain drainage pressure, contributes for urban construction.

Specific embodiment

Construction comparison is carried out below by way of 9 embodiments are formulated,

Embodiment 1-5, a kind of foundation construction technique include the following steps：

Mainly include the following steps：Step S1 is paved in the uniform spread curing agent in foundation of road bed surface, then using grit And bed course is used as after rolling；Step S2 sets one layer of soluble film in bed course assembling reinforcement stratum reticulare, and on reinforcing bar stratum reticulare upper berth, It is then uniform on soluble film that spread is semi-rigid goes to a grassroots level；Step S3 is laid in the semi-rigid upper surface of going to a grassroots level One layer of seepage brick compacted lift；Step S4, above the seepage brick compacted lift again uniform spread it is semi-rigid on base；Step S5, It is described it is semi-rigid on the mixture bed of material of rubble and epoxy resin filled above base be then compacted；Step S6 is being pressed One layer of spread is used for the emulsified asphalt layer of the epoxy resin layer fixed bonding on the mixture bed of material after reality.Wherein embodiment The each component contained in 1-5 is as shown in table 1：

The construction material used of 1 embodiment 1-5 of table

Embodiment 6, a kind of foundation construction technique, the difference is that, in the step S5, elder generation is firm half with embodiment 5 The upper hair of Xing Shang bases is laid with one layer of waterproof binding agent layer.

Embodiment 7, a kind of foundation construction technique the difference is that, contain with embodiment 5 in the emulsified asphalt layer Polymer fiber additive.

Embodiment 8, a kind of foundation construction technique the difference is that, contain with embodiment 6 in the emulsified asphalt layer Polymer fiber additive.

Embodiment 9, a kind of foundation construction technique, with embodiment 8 the difference is that, in the seepage brick compacted lift Seepage brick is made of portland cement, silicon manganese slag.

Ground permeability performance of constructing characterizes：It chooses 24 1m*1m soils and is divided into 9 groups, using the foundation construction of embodiment 1-9 Each pair of two panels soil of technique is constructed, and was tested after the completion of building after 15 days, 10 are poured into every 5min in every soil Water is risen, 3 times altogether, is observed 3 times after pouring, water accumulating volume of the ground after 10min, 30min and 1h, with the average value of depth of accumulated water Meter, is as a result shown in table 2.

Water accumulating volume of the 2 implementation group of table after 10min, 30min and 1h

The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment, All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims

1. a kind of foundation construction technique, which is characterized in that mainly include the following steps：Step S1, it is uniform on foundation of road bed surface Spread curing agent, then it is used as bed course after being paved and rolled using grit；Step S2, in bed course assembling reinforcement stratum reticulare, and One layer of soluble film is set on reinforcing bar stratum reticulare upper berth, then uniform on soluble film spread is semi-rigid goes to a grassroots level；Step S3, One layer of seepage brick compacted lift is laid in the semi-rigid upper surface of going to a grassroots level；Step S4, above the seepage brick compacted lift The semi-rigid upper base of uniform spread again；Step S5, it is described it is semi-rigid on the mixing of rubble and epoxy resin is filled above base It is material bed and then be compacted；Step S6, one layer of spread is used for the epoxy resin layer on the mixture bed of material after compaction The emulsified asphalt layer of fixed bonding.

2. a kind of foundation construction technique according to claim 1, which is characterized in that contain polymerization in the emulsified asphalt layer Fibrous additive.

3. a kind of foundation construction technique according to claim 2, which is characterized in that in the step S5, first half just The upper hair of Xing Shang bases is laid with one layer of waterproof binding agent layer.

4. a kind of foundation construction technique according to claim 3, which is characterized in that include in the semi-rigid upper base Steel fibre additive.

5. a kind of foundation construction technique according to claim 4, which is characterized in that in the step S1, to grit mistake It sieves twice, the aperture of sieve is the sieve of 25mm for the first time, and the aperture of second of sieve is the sieve of 12mm.

6. a kind of foundation construction technique according to claim 5, which is characterized in that the mixed material further includes solid sand Agent, the sand-fixating agent are phenolic resin；Soil-solidified-agent includes flyash, desulfurated plaster, quick lime and aluminum sulfate.

A kind of 7. foundation construction technique according to claim 6, which is characterized in that the infiltration in the seepage brick compacted lift Brick is made of portland cement, silicon manganese slag.