CN110080233A - The processing method of soft foundation - Google Patents
The processing method of soft foundation Download PDFInfo
- Publication number
- CN110080233A CN110080233A CN201910275476.9A CN201910275476A CN110080233A CN 110080233 A CN110080233 A CN 110080233A CN 201910275476 A CN201910275476 A CN 201910275476A CN 110080233 A CN110080233 A CN 110080233A
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- China
- Prior art keywords
- building waste
- aggregate
- construction
- fine aggregate
- fine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- 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
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The processing method of specifically a kind of soft foundation of the present invention；The processing method of soft foundation, it is characterized in that: including step 1, excavation of foundation pit；Step 2, building waste change the construction of packing course one；Step 3, bed course pouring construction；This Soft foundation treatment construction and construction method can effectively realize building waste recycling and reusing, can effectively save resource, turn waste into wealth, reduce waste, great save the cost meets national ecological, environmental protective planning requirement.This Soft foundation treatment construction and construction method can effectively realize building waste recycling and reusing, can effectively save resource, turn waste into wealth, reduce waste, great save the cost meets national ecological, environmental protective planning requirement.
Description
Technical field
The present invention relates to the construction field of building lot, the processing method of specifically a kind of soft foundation.
Background technique
As country puts into effect a series of promotion and implementation of land reform policies and work of renovating shantytowns plan, a large amount of old city
Area, old industrial area building, structures, which are removed, carries out reconstruction or newly-built work, and generated building waste quantity after removing
It is extremely huge.Currently, being all directly to be transported to countryside or rural area without any processing and revealed for the building waste overwhelming majority
It is stacked or burial processing, wastes a large amount of state-owned land resource, and need supplementary payments land acquisition expense, refuse collection
Etc. expenses, clear and will cause serious problem of environmental pollution again with tiny particles content generated in stacking process.
Summary of the invention
It is an object of the invention to overcome drawbacks described above, providing one kind may be implemented building waste recycling and reusing, and accord with
Close the method for processing foundation that ecological, environmental protective rule require and Construction Quality requires.
In order to achieve the above object, the present invention is implemented as follows:
A kind of processing method of soft foundation, including
Step 1, excavation of foundation pit；
Step 1.1, will be at 0.85m-1.35m below base pit dewatering to designed elevation；
Step 1.2, aggregate squeeze work, disperse to construct to both sides among foundation pit when extruding, by ready fine aggregate and thick
Aggregate mixture fills in foundation pit, and filling region every time is 1.5 ㎡ -2 ㎡, is then carried out ramming processing with backacter,
It often fills a fine aggregate and coarse aggregate mixture rams 3-5 times and squeezes fine aggregate and coarse aggregate mixture into mud, it will
Successively carry out the construction of other positions of foundation pit；
Step 2, building waste change the construction of packing course one；
The mixture being made of fine aggregate and fine powder sand-lime is uniformly laid on building waste dynamic replacement layer two by step 2.1
Top, laid every time with a thickness of 150mm-200mm, it is every laid one layer after just carried out ramming processing with ramming machine, when ramming
Keep speed consistent, each place tamped in place, at the same to control building waste change one absolute altitude of packing course with
Flatness can not be impregnated after compacting within three days by water；
Step 3, bed course pouring construction；
Step 3.1, progress foundation pit superstructure bed course pour work, it is noted that indwelling construction working face, that is, pad when pouring bed course
Layer has more 300mm than structural body periphery, pours bed course it is noted that the control of mat surface flatness, reaches 1.2 million to bed course intensity
Artificial work can be gone up after pa.
The processing method of the soft foundation, processing construction change packing course one and building waste dynamic replacement by building waste
Layer two forms；Building waste changes packing course first is that being made of fine aggregate and fine powder sand-lime；Building waste dynamic replacement layer is second is that by thin
What aggregate, coarse aggregate and muck soil formed；Building waste changes packing course first is that on based on building waste dynamic replacement layer two
Structure sheaf is the mixture as made of building waste reclaimed materials fine aggregate and fine powder sand-lime common mix, fill with a thickness of
350mm, compacting factor are more than or equal to 0.97；Fine aggregate is process by demolition of buildings or structures hard material, grain
Diameter is between 0.15mm-4.75mm；Fine powder sand-lime is that the fine powder as caused by demolition of buildings or structures is doped with calcium hydroxide group
At mixture；Building waste dynamic replacement layer two is to be squeezed fine aggregate, coarse aggregate into muck soil with backacter
The hybrid architecture level of formation, fine aggregate and coarse aggregate are continuously replenished into muck soil hole in extrusion process, reach
Enhance globality purpose；
Fine aggregate is process by demolition of buildings or structures hard material, and partial size is between 0.15mm-4.75mm；
Coarse aggregate is process by demolition of buildings or structures hard material, and partial size is between 4.76mm-150mm；
Muck soil is original soil body in foundation pit, and bearing capacity is extremely uneven, needs to be further processed and is just able to satisfy construction and wants
It asks.
This Soft foundation treatment construction and construction method can effectively realize building waste recycling and reusing, can effectively save
About resource turns waste into wealth, and reduces waste, and great save the cost meets national ecological, environmental protective planning requirement.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this method for processing foundation.
Specific embodiment
The present invention is further illustrated below by way of specific embodiment.
As shown in Figure 1, a kind of processing method of soft foundation, including
Step 1: excavation of foundation pit
Firstly, then carrying out excavation of foundation pit work again, particularly at 0.85m-1.35m below base pit dewatering to designed elevation
Foundation excavation of silt is excavated at actual design absolute altitude or less 350mm when excavation of foundation pit, after excavation, is squeezed with regard to carrying out aggregate
Press work, it should be noted that disperse to construct to both sides among squash type Shi Yaocong foundation pit, by ready fine aggregate 21 and thick bone
Expect that 22 mixtures fill in foundation pit, filling region every time is 1.5 ㎡ -2 ㎡, it is then carried out ramming processing with backacter,
It often fills a fine aggregate 21 and 22 mixture of coarse aggregate rams 3-5 times and squeezes fine aggregate 21 and 22 mixture of coarse aggregate to silt
In mud, the construction of other positions of foundation pit will be successively carried out；
Step 2: building waste changes the construction of packing course 1
After above-mentioned steps are completed, the mixture being made of fine aggregate 11 and fine powder sand-lime 12 is uniformly laid on building rubbish
2 top of rubbish dynamic replacement layer is laid every time with a thickness of 150mm-200mm, it is every laid one layer after just rammed with ramming machine
Processing, will keep speed consistent, each place is tamped in place when ramming, while to control building waste and change and fill out
1 absolute altitude of layer and flatness, can not be impregnated after compacting within 3 days by water；
Step 3: bed course pouring construction
Foundation pit superstructure bed course can be carried out after above-mentioned steps are completed and pours work, it is noted that indwelling is applied when pouring bed course
Work working face, i.e. bed course have more 300mm than structural body periphery, pour bed course it is noted that mat surface flatness controls, to bed course
Intensity can go up artificial work after reaching 1.2 megapascal.
A kind of Soft foundation treatment construction changes packing course 1 by building waste and building waste dynamic replacement layer 2 forms；Described
Building waste changes what packing course 1 was made of fine aggregate 11 and fine powder sand-lime 12；The building waste dynamic replacement layer 2 is by thin
What aggregate 21, coarse aggregate 22 and muck soil 23 formed.
It is based on the structure sheaf on building waste dynamic replacement layer 2 that the building waste, which changes packing course 1, is by building rubbish
Mixture made of rubbish reclaimed materials fine aggregate 11 and the common mix of fine powder sand-lime 12, fills with a thickness of 350mm, compacting factor is greater than
Equal to 0.97；
The fine aggregate 11 is process by demolition of buildings or structures hard material, and partial size is in 0.15mm-
Between 4.75mm；
The fine powder sand-lime 12, the fine powder caused by demolition of buildings or structures are doped with the mixing that calcium hydroxide forms
Material；
The building waste dynamic replacement layer 2 is to be squeezed fine aggregate 21, coarse aggregate 22 to muck soil with backacter
The hybrid architecture level formed in 23, fine aggregate 21 and coarse aggregate 22 are continuously replenished to 23 hole of muck soil in extrusion process
In gap, reach enhancing globality purpose；
The fine aggregate 21 is process by demolition of buildings or structures hard material, and partial size is in 0.15mm-
Between 4.75mm；
The coarse aggregate 22 is process by demolition of buildings or structures hard material, and partial size is in 4.76mm-
Between 150mm；
The muck soil 23, is original soil body in foundation pit, and bearing capacity is extremely uneven, and needing to be further processed could expire
Sufficient construction requirement.
This Soft foundation treatment construction and construction method can effectively realize building waste recycling and reusing, can effectively save
About resource turns waste into wealth, and reduces waste, and great save the cost meets national ecological, environmental protective planning requirement.
Claims (2)
1. a kind of processing method of soft foundation, it is characterized in that: including
Step 1, excavation of foundation pit；
Step 1.1, will be at 0.85m-1.35m below base pit dewatering to designed elevation；
Step 1.2, aggregate squeeze work, disperse to construct to both sides among foundation pit when extruding, by ready fine aggregate and thick
Aggregate mixture fills in foundation pit, and filling region every time is 1.5 ㎡ -2 ㎡, is then carried out ramming processing with backacter,
It often fills a fine aggregate and coarse aggregate mixture rams 3-5 times and squeezes fine aggregate and coarse aggregate mixture into mud, it will
Successively carry out the construction of other positions of foundation pit；
Step 2, building waste change the construction of packing course one；
The mixture being made of fine aggregate and fine powder sand-lime is uniformly laid on building waste dynamic replacement layer two by step 2.1
Top, laid every time with a thickness of 150mm-200mm, it is every laid one layer after just carried out ramming processing with ramming machine, when ramming
Keep speed consistent, each place tamped in place, at the same to control building waste change one absolute altitude of packing course with
Flatness can not be impregnated after compacting within three days by water；
Step 3, bed course pouring construction；
Step 3.1, progress foundation pit superstructure bed course pour work, it is noted that indwelling construction working face, that is, pad when pouring bed course
Layer has more 300mm than structural body periphery, pours bed course it is noted that the control of mat surface flatness, reaches 1.2 million to bed course intensity
Artificial work can be gone up after pa.
2. the processing method of soft foundation according to claim 1, it is characterized in that: processing construction changes packing course by building waste
One and building waste dynamic replacement layer two form；Building waste changes packing course first is that being made of fine aggregate and fine powder sand-lime；Build rubbish
Rubbish dynamic replacement layer is second is that be made of fine aggregate, coarse aggregate and muck soil；Building waste changes packing course first is that based on building rubbish
Structure sheaf on rubbish dynamic replacement layer two is mixed as made of building waste reclaimed materials fine aggregate and the common mix of fine powder sand-lime
Material is closed, is filled with a thickness of 350mm, compacting factor is more than or equal to 0.97；Fine aggregate is by demolition of buildings or structures hard material
What material was process, partial size is between 0.15mm-4.75mm；Fine powder sand-lime is as caused by demolition of buildings or structures
Fine powder is doped with the mixture of calcium hydroxide composition；Building waste dynamic replacement layer two is with backacter by fine aggregate, coarse aggregate
The hybrid architecture level formed into muck soil is squeezed, fine aggregate and coarse aggregate are continuously replenished to mud in extrusion process
In matter soil pores, reach enhancing globality purpose；
Fine aggregate is process by demolition of buildings or structures hard material, and partial size is between 0.15mm-4.75mm；
Coarse aggregate is process by demolition of buildings or structures hard material, and partial size is between 4.76mm-150mm；
Muck soil is original soil body in foundation pit, and bearing capacity is extremely uneven, needs to be further processed and is just able to satisfy construction and wants
It asks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275476.9A CN110080233A (en) | 2019-04-08 | 2019-04-08 | The processing method of soft foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275476.9A CN110080233A (en) | 2019-04-08 | 2019-04-08 | The processing method of soft foundation |
Publications (1)
| Publication Number | Publication Date |
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| CN110080233A true CN110080233A (en) | 2019-08-02 |
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| CN201910275476.9A Pending CN110080233A (en) | 2019-04-08 | 2019-04-08 | The processing method of soft foundation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152486A (en) * | 2021-02-05 | 2021-07-23 | 中建四局第一建筑工程有限公司 | Construction method and construction structure of earth and rock foundation in complex karst geology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1060912A (en) * | 1996-08-23 | 1998-03-03 | Marugami Komuten:Kk | Structure for forming ground |
| CN101363220A (en) * | 2008-09-02 | 2009-02-11 | 徐州建筑职业技术学院 | Construction waste squeezing silt backfill method |
| CN102383413A (en) * | 2011-08-31 | 2012-03-21 | 东北大学 | Method for constructing strengthened saturated-flow plastic silt soft soil foundation |
-
2019
- 2019-04-08 CN CN201910275476.9A patent/CN110080233A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1060912A (en) * | 1996-08-23 | 1998-03-03 | Marugami Komuten:Kk | Structure for forming ground |
| CN101363220A (en) * | 2008-09-02 | 2009-02-11 | 徐州建筑职业技术学院 | Construction waste squeezing silt backfill method |
| CN102383413A (en) * | 2011-08-31 | 2012-03-21 | 东北大学 | Method for constructing strengthened saturated-flow plastic silt soft soil foundation |
Non-Patent Citations (3)
| Title |
|---|
| 《施工员一本通》编委会: "《施工员一本通（第2版）》", 30 September 2013, 中国建材工业出版社 * |
| 全国高等学校建筑学学科专业指导委员会等: "《2006全国建筑教育学术研讨会论文集》", 30 September 2006, 中国建筑工业出版社 * |
| 翟长鑫: ""影响灰土垫层强度的主要因素"", 《铁道建筑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152486A (en) * | 2021-02-05 | 2021-07-23 | 中建四局第一建筑工程有限公司 | Construction method and construction structure of earth and rock foundation in complex karst geology |
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Application publication date: 20190802 |