CN105887794B - A kind of super thick waste soil ground preprocess method - Google Patents
A kind of super thick waste soil ground preprocess method Download PDFInfo
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- CN105887794B CN105887794B CN201610226326.5A CN201610226326A CN105887794B CN 105887794 B CN105887794 B CN 105887794B CN 201610226326 A CN201610226326 A CN 201610226326A CN 105887794 B CN105887794 B CN 105887794B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of super thick waste soil ground preprocess method, including step are as follows, step 1：The earth's surface that soil site is discarded to super thick is flattened and is compacted；Step 2：The earth's surface that soil site is discarded in super thick lays air tight composite earthwork cloth；Step 3：Construction drill on soil site is discarded in the super thick for being equipped with air tight composite earthwork cloth；Step 4：It is determined that the processing method to super thick waste soil ground is vacuum suction method either deep edman degradation Edman or incineration method；Step 5：Super thick waste soil ground around drilling ram and expanded and compacted, pile foundation engineering of constructing.Super thick is discarded soil layer pretreatment into raw soil layer again by the present invention, improve foundation soil strength, reduce settlement of foundation, also reduce foundation soil and frictional resistance is born to the pile body of construction in later period, overcome that traditional method for processing foundation scope of application is small, reinforcement depth is limited and reinforce the technical problem that groundwork bearing capacity does not reach design requirement.
Description
Technical field
The invention belongs to building field, more particularly to a kind of waste soil ground deep level of processing method to super thick.
Background technology
Super thick waste soil ground preprocess method is a kind of new method of building foundation treatment.Waste soil refers to house refuse
Banket, the artificial spoir such as building waste bankets, industrial refuse.These waste soils its complicated component, structure compared with subsoil
Make loose, it is impossible to meet building lot design requirement.Generally single treatment is carried out to super thick waste soil to also tend to not reach design
It is required that.Such as organic matter and plastics in house refuse, it can be caused a hidden trouble to the use of ground later stage；Complicated and big space
Building is banketed and can also influence the safe handling of ground.Due to city development and the requirement of construction area, we must be to super thick
Waste soil ground carries out safety, processing economical and environmentally friendly, and these waste soils are turned into building lot.
At present to waste soil basement process, it is more using soil removal and replacement, strong rammer, rams expansion and compacted method.Soil removal and replacement is exactly out
Waste soil is transported in digging, then backfills new soil, and this method is only applicable to scope and the small discarded soil site of thickness, if super thick it is big,
The big discarded soil site of area can cause second of environmental pollution and form second waste soil field when excavation is transported；Strong rammer
The tamping depth of method is limited, and inadequate for super thick waste soil processing depth, foundation bearing capacity does not reach design requirement；Ram expand and
Compacted method coverage is limited, to some compositions（Such as the organic matter and plastic products of house refuse）It can not exclude, can be built
Build and leave hidden danger.
The content of the invention
The present invention proposes a kind of super thick waste soil ground preprocess method, to solve traditional method for processing foundation and be applicable model
Enclose it is small, second of environmental pollution, reinforcement depth can be caused limited and reinforce groundwork bearing capacity do not reach the skill of design requirement
Art problem.
A kind of super thick waste soil ground preprocess method, it is characterised in that as follows including step.
Step 1：The earth's surface that soil site is discarded to super thick is flattened and is compacted.
Step 2：The earth's surface that soil site is discarded in super thick lays air tight composite earthwork cloth.
Step 3：Construction drill on soil site is discarded in the super thick for being equipped with air tight composite earthwork cloth.
Step 4：According to the structure of super thick waste soil foundation soil, constituent and water content size, it is determined that being given up to super thick
The processing method of spoir ground is vacuum suction method either deep edman degradation Edman or incineration method.
Step 5：According to the method in step 4, after the processing to foundation soil reaches design requirement, then to around drilling
Super thick waste soil ground, which ram, to be expanded and compacted, pile foundation engineering of constructing.
Preferably, super thick waste soil ground is that voidage is more than 10%, the super thick waste soil ground without house refuse,
Vacuum suction method processing then is carried out to super thick waste soil in step 4.
The vacuum suction method comprises the following steps.
Step a：After step 3 is constructed, negative pressure of vacuum device for filling is installed in drill hole.
Step b：The valve A for the triple valve being connected with vavuum pump is opened, extracts the gas in super thick waste soil ground space
Body, turn off valve A after aspirator vacuum degree reaches design requirement.
Step c：Get casting resin ready, open the valve B for the triple valve being connected with batch can, casting resin is led under suction function
The pore that sieves enters in super thick waste soil ground space, and the compactness of ground reaches design requirement compactness and turns off valve B.
Step d：Negative pressure of vacuum device for filling is removed, steel pipe and protection tube in drilling is extracted, then carries out step 5.
Preferably, the aperture of the drilling is more than 89mm, and hole depth is designed into super thick waste soil bottom；Described casting resin is
Cement mortar, coal ash pulp or waterglass.
A kind of negative pressure of vacuum device for filling that vacuum suction method processing is carried out for super thick waste soil, it is characterised in that：Institute
Negative pressure of vacuum device for filling is stated to include triple valve, the batch can for being connected to triple valve left and right ends and vavuum pump, be connected to threeway
Valve lower end is used to be evacuated and the steel pipe of feeding, the protection tube that is enclosed on the outside of steel pipe and is clipped between steel pipe and protection tube
Sealing-plug；The steel pipe and protection tube are inserted in the borehole, and gap is left between protection tube and borehole sidewall；It is described
The bottom of protection tube is the screen casing being with holes in one section of side wall, and is provided with the lower ending opening of protection tube dismountable
Plug.
The sealing-plug is shaped as annular, positioned at the top of screen casing；Between the steel pipe, protection tube and borehole sidewall
Gap pass through screen casing UNICOM.
Preferably, if the super thick waste soil ground is the super thick waste soil ground containing house refuse, super thick waste soil
Middle water content is more than the 25%, content of organic matter and is more than 20%, then carries out deep degradation treatment to super thick waste soil in step 4.
The deep degraded comprises the following steps.
Step a：Degradable material is put into drilling, the organic matter in super thick waste soil and degradable material are carried out
Degraded.
Step b：Degraded reaches design requirement, carries out step 5.
Preferably, the aperture of the drilling is more than 400mm, and hole depth is designed into super thick waste soil bottom.
Preferably, if the super thick waste soil ground is the super thick waste soil ground containing house refuse, in house refuse
Water content is less than 5%, organic matter and the content of organic matter is more than 10%, then carries out incineration process to super thick waste soil in step 4.
The incineration comprises the following steps.
Step a：Incinerating apparatus is installed.
Step b：Oxygen and liquefied gas are passed through into drilling by incinerating apparatus；The burner of incinerating apparatus is lighted, is carried out
Incinerate.
Step c：Remove incinerating apparatus, then the super thick waste soil ground around drilling ram and expanded and compacted.
Preferably, the aperture of the drilling is more than 400mm, and hole depth is designed into super thick waste soil bottom.
Preferably, incineration of the incinerating apparatus to the organic matter in super thick waste soil and organic matter waste material is in the borehole
Segmentation is incinerated from bottom to top.
A kind of incinerating apparatus that incineration process is carried out for super thick waste soil, it is characterised in that：The incinerating apparatus includes
There are liquid gas storage tank, liquefied gas snorkel, oxygen tank, send oxygen hose and burner；One end of the liquefied gas snorkel and liquid
LPG cylinder is connected, and the bottom that the other end stretches into drilling is connected with burner；It is described to send oxygen hose one end to be connected with oxygen tank, it is another
The bottom that drilling is stretched at end is connected with burner.
Compared with prior art the invention has the characteristics that and beneficial effect.
1st, super thick is discarded soil layer and pre-processed into raw soil layer again by the present invention, improves foundation soil strength, reduces settlement of foundation,
Also reduce foundation soil and frictional resistance is born to the pile body of construction in later period, overcome that traditional method for processing foundation scope of application is small, reinforcement depth
Limited and reinforcing groundwork bearing capacity does not reach the technical problem of design requirement.
2nd, super thick waste soil deep pretreatment of the present invention dissolves partial organic substances matter and plastics using degraded and incinerating method
Rubbish, influence of the house refuse to ground is reduced, can be with sintering curing, by waste soil basement process simultaneously for the clay class soil body
Into regeneration soil base, have and do not cause the advantages of secondary pollution.
3rd, degraded and incineration produce material in the present invention, reduce producing pollution to underground water and air after processing, to ring
Border plays a protective role.
4th, the present invention utilizes negative pressure of vacuum by casting resin（Ashes or slurries）It is filled into the space of super thick waste soil and is formed
Raw soil layer again, greatly improve waste soil intensity and bearing capacity.
Brief description of the drawings
Fig. 1 negative pressure of vacuum device for filling schematic diagrames.
Fig. 2 incinerating apparatus schematic diagrames.
Reference：1-drilling, 2-protection tube, 3-composite earthwork cloth, 4-sealing-plug, 5-triple valve, 6-it is true
Empty pump, 7-batch can, 8-steel pipe, 9-valve B, 10-valve A, 11-liquid gas storage tank, 12-liquefied gas snorkel, 13-oxygen
Gas tank, 14-send oxygen hose, 15-burner, 16-plug.
Embodiment
The present invention is to use deep layer preprocess method to super thick waste soil ground, and discarded soil layer is pre-processed into the raw-soil again
Layer, improves the engineering properties of waste soil ground, then ram and expand the processing method such as closely knit, forms the ground for meeting Architectural Design Requirements
Base.
It is that two methods are used according to its composition and structure to waste soil ground preprocess method.First, for without life
The big space building of super thick of rubbish living and the waste soil of industry, are by the sky in deep of banketing using negative pressure of vacuum placement method
Gap is evacuated to form negative pressure, then fills powder using negative pressure（Flyash or cement flour）And slurries.It is certain in borehole circumference
In the range of space be filled with closely knit, be transformed into raw soil layer again, make its engineering properties be improved, in regeneration soil ground
Construction pile foundation engineering will be met the effect of Architectural Design Requirements；Second, first to the waste soil ground for being mingled with house refuse
Using degraded and incinerating methods, the organic matter in waste soil and plastic degradation and incineration are fallen, improve the engineering properties of soil around pile,
Reinforced again using negative pressure of vacuum placement method.Then waste soil ground is constructed by pretreatment into regeneration soil ground
The pile foundation engineerings such as tamping compaction.This waste soil ground by pretreatment, various buildings can be designed and built thereon
Thing.
Embodiment one：Super thick waste soil ground is that voidage is more than 10%, the super thick waste soil ground without house refuse
Either building or industry it is discarded banket super thick waste soil ground when.
As shown in figure 1, this super thick waste soil ground preprocess method is as follows including step.
Step 1：The earth's surface that soil site is discarded to super thick is flattened and is compacted.
Step 2：The earth's surface that soil site is discarded in super thick lays air tight composite earthwork cloth 3, to prevent earth's surface from breathing freely.
Step 3：Construction drill 1 on soil site is discarded in the super thick for being equipped with air tight composite earthwork cloth 3, aperture is big
In 89mm, hole depth is designed into waste soil bottom.
Step 4：Super thick waste soil ground is handled with vacuum suction method.
The step of processing, is as follows：
Step a：After step 3 is constructed, negative pressure of vacuum device for filling is installed at drilling 1.
Step b：The valve A10 for the triple valve being connected with vavuum pump 6 is opened, is extracted in super thick waste soil ground space
Gas, turn off valve A10 after aspirator vacuum degree reaches design requirement.
Step c：Get casting resin ready, open the valve B9 for the triple valve being connected with batch can 7, casting resin is under suction function
Entered by screen casing hole in super thick waste soil ground space, the compactness of ground reaches design requirement compactness and turns off valve B9.
Step d：Negative pressure of vacuum device for filling is removed, steel pipe 8 and protection tube 2 in drilling 1 is extracted, then carries out step
Five.
Step 5：According to the method in step 4, after the processing to foundation soil reaches design requirement, then to drilling 1 around
Super thick waste soil ground carry out ram expand and it is compacted, construct pile foundation engineering.
In the present embodiment, described casting resin is cement mortar, coal ash pulp or waterglass.
It is this for super thick waste soil carry out vacuum suction method processing negative pressure of vacuum device for filling, include triple valve 5,
It is connected to the batch can 7 and vavuum pump 6, the steel pipe for being used for pumping and feeding for being connected to the lower end of triple valve 5 of the left and right ends of triple valve 5
8th, the sealing-plug 4 for being enclosed on the protection tube 2 in the outside of steel pipe 8 and being clipped between steel pipe 8 and protection tube 2；The steel pipe 8 and anti-
Protecting pipe 2 is inserted in drilling 1, and leaves gap between 1 side wall of protection tube 2 and drilling；Described sleeve pipe 2 is on the ground of distance
2 meters of bottoms to sleeve pipe 2 are the screen casing that diameter aperture is equipped with one section of side wall below, a diameter of 8~12cm of the screen casing, and
And dismountable plug 16 is provided with the lower ending opening of sleeve pipe 2；The sealing-plug 4 is shaped as global shape and positioned at the upper of screen casing
Side.Gap between 1 side wall of described sleeve pipe 2 and drilling is sealed by composite earthwork cloth 3, by above screen casing between sleeve pipe 2 and steel pipe 8
Sealing-plug 4 seal, so as to by the steel pipe 8, protection tube 2 and drilling 1 side wall between gap UNICOM.
Embodiment two：When water content is higher than 20% higher than the 25%, content of organic matter in super thick waste soil ground.
As shown in figure 1, this super thick waste soil ground preprocess method is as follows including step.
Step 1：The earth's surface that soil site is discarded to super thick is flattened and is compacted.
Step 2：The earth's surface that soil site is discarded in super thick lays air tight composite earthwork cloth 3, to prevent earth's surface from breathing freely.
Step 3：Construction drill 1 on soil site is discarded in the super thick for being equipped with air tight composite earthwork cloth 3, aperture is big
In 400mm, hole depth is designed into waste soil bottom.
Step 4：Deep degraded is carried out to the house refuse in super thick waste soil ground.
Deep degraded comprises the following steps again.
Step a：Degradable material is put into drilling 1, according to organic matter in discarded house refuse and degradable waste material composition
The degrading to organic matter in house refuse and degradable waste material from chemistry or biomaterial.
Step b：Degradation time is longer, and observation degraded reaches design requirement step and carries out step 5.
Step 5:According to the method in step 4, the degraded to the house refuse in super thick waste soil ground reaches design
After it is required that, then the super thick waste soil ground around drilling 1 ram and expanded and compacted, pile foundation engineering of constructing.
Embodiment three：More than waste soil water level located underground, water content is more than less than 5%, plastics and the content of organic matter
When 10%.
As shown in Fig. 2 this super thick waste soil ground preprocess method is as follows including step.
Step 1：The earth's surface that soil site is discarded to super thick is flattened and is compacted.
Step 2：The earth's surface that soil site is discarded in super thick lays air tight composite earthwork cloth 3, to prevent earth's surface from breathing freely.
Step 3：Construction drill 1 on soil site is discarded in the super thick for being equipped with air tight composite earthwork cloth 3, aperture is big
In 400mm, hole depth is designed into waste soil bottom.
Step 4：House refuse in super thick waste soil ground is incinerated.
Step a：Incinerating apparatus is installed.
Step b：Oxygen and liquefied gas are passed through into drilling 1 by incinerating apparatus；Point burner 15, is incinerated.
Step c：Incinerating apparatus is removed, then carries out step 5.
Step 5:According to the method in step 4, the house refuse in foundation soil is incinerated after reaching design requirement, then it is right
Super thick waste soil ground around drilling 1, which ram, to be expanded and compacted, pile foundation engineering of constructing.
This incinerating apparatus for house refuse incineration process, the incinerating apparatus include liquid gas storage tank 11, liquefaction
Pneumatic transmission tracheae 12, oxygen tank 13, send oxygen hose 14 and burner 15；One end of the liquefied gas snorkel 12 and liquid gas storage tank
11 connections, the bottom that the other end stretches into drilling 1 are connected with burner 15；It is described to send the one end of oxygen hose 14 to be connected with oxygen tank 13,
The bottom that the other end stretches into drilling 1 is connected with burner 15.
In the present embodiment, the incinerating apparatus is to drill to the organic matter in house refuse and degradable incinerating waste material
In 1 from bottom to top segmentation incinerate, with incinerate carry out, manually or lifting device Synchronous lifting burner 15 position.
Above-mentioned work progress can be with porous while construction and provided with peephole.Carried out again after the completion of design area construction other
Pile foundation construction.
By the above-mentioned means, by the organic matter in house refuse and degradable incinerating waste material and decompose and by clay class
Native sintering curing, eliminate the organic matter around drilling 1 and degradable waste material influences on engineering foundation,
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention covers people in the art
Member according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (2)
1. a kind of super thick waste soil ground preprocess method, it is characterised in that comprise the following steps：
Step 1：The earth's surface that soil site is discarded to super thick is flattened and is compacted；
Step 2：The earth's surface that soil site is discarded in super thick lays air tight composite earthwork cloth（3）；
Step 3：It is being equipped with air tight composite earthwork cloth（3）Super thick discard soil site on construction drill（1）；
Step 4：According to the structure of super thick waste soil foundation soil, constituent and water content size, it is determined that to super thick waste soil
The processing method of ground is vacuum suction method either deep edman degradation Edman or incineration method；
Step 5：According to the method in step 4, after the processing to foundation soil reaches design requirement, then to drilling（1）Around
Super thick waste soil ground, which ram, to be expanded and compacted, pile foundation engineering of constructing；
When super thick waste soil ground is that voidage is more than 10%, super thick waste soil ground without house refuse, then in step 4
In to super thick waste soil carry out vacuum suction method processing；
The vacuum suction method comprises the following steps：
Step a：After step 3 is constructed, drilling（1）Place's installation negative pressure of vacuum device for filling；The negative pressure of vacuum filling dress
Put and include triple valve（5）, be connected to triple valve（5）The batch can of left and right ends（7）And vavuum pump（6）, be connected to triple valve（5）
The steel pipe for being used for pumping and feeding of lower end（8）, be enclosed on steel pipe（8）The protection tube in outside（2）And it is clipped in steel pipe（8）With preventing
Protecting pipe（2）Between sealing-plug（4）；The steel pipe（8）And protection tube（2）It is inserted in drilling（1）In, and protection tube
（2）With drilling（1）Gap is left between side wall；The protection tube（2）Bottom be the screen casing that is with holes in one section of side wall,
And protection tube（2）Lower ending opening at be provided with dismountable plug（16）；
The sealing-plug（4）Be shaped as annular, positioned at the top of screen casing；The steel pipe（8）, protection tube（2）With drilling（1）
Gap between side wall passes through screen casing UNICOM；
Step b：Opening and vavuum pump（6）The valve A (10) for the triple valve being connected, extract in super thick waste soil ground space
Gas, turn off valve A after aspirator vacuum degree reaches design requirement（10）；
Step c：Get casting resin, opening and batch can ready（7）The valve B for the triple valve being connected（9）, casting resin is under suction function
Entered by screen casing hole in super thick waste soil ground space, the compactness of ground turns off valve B after reaching design requirement compactness
（9）；
Step d：Negative pressure of vacuum device for filling is removed, extracts drilling（1）In steel pipe（8）And protection tube（2）, then walked
Rapid five.
2. super thick waste soil ground preprocess method according to claim 1, it is characterised in that：The drilling（1）Hole
Footpath is more than 89mm, and hole depth is designed into super thick waste soil bottom；Described casting resin is cement mortar, coal ash pulp or waterglass.
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| CN107794935B (en) * | 2016-08-31 | 2019-12-31 | 宝山钢铁股份有限公司 | Filling device and filling method for bottom plate lower foundation of Wiggins gas chamber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU977570A1 (en) * | 1981-06-08 | 1982-11-30 | Московский Ордена Трудового Красного Знамени Инженерно-Строительный Институт Им.В.В.Куйбышева | Method for thermally consolidating soil |
| CN1228494A (en) * | 1998-03-06 | 1999-09-15 | 张凌 | Vacuum deep well reinforcing method for large thickness soft soil foundation |
| CN101967818B (en) * | 2010-09-16 | 2011-11-23 | 厦门鑫海陆软土地基科技有限公司 | Biological treatment method for soft soil foundation |
| CN104153344A (en) * | 2014-05-06 | 2014-11-19 | 宁波职业技术学院 | Soft foundation treatment method |
| CN105256787B (en) * | 2015-09-08 | 2016-05-25 | 西安科技大学 | The method of heating using microwave reinforcement of collapsible loess foundation |
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