CN101008177A - Gradation solidification and compacting method for groundsill - Google Patents
Gradation solidification and compacting method for groundsill Download PDFInfo
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- CN101008177A CN101008177A CN 200610125146 CN200610125146A CN101008177A CN 101008177 A CN101008177 A CN 101008177A CN 200610125146 CN200610125146 CN 200610125146 CN 200610125146 A CN200610125146 A CN 200610125146A CN 101008177 A CN101008177 A CN 101008177A
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Abstract
The invention discloses a method for strengthening the foundation laminated. The invention based on the project demand, combining the soil condition of foundation as the soil thickness selects right pump energy, uses novel post hammer to compact and compress deeply, then uses general hammer to compress and compact the middle soil, uses the low-energy sheet hammer to compact and compress the shallow layer, then based on the soil condition and the bearing demand checks the area. The invention can use post hammer, general hammer and sheet hammer to strengthen the foundation laminated, to strengthen the deep, middle and shallow layers together, to improve the strengthened depth and improve the bearing force of foundation.
Description
Technical field
The present invention relates to the building lot reinforcing and processing method, especially relate to and a kind ofly adopt novel post hammer that ground is carried out layering to reinforce closely knit method.
Background technology
When using dynamic compaction reinforced Ground Treatment, common processing is only the superficial part of ground to be handled, and the effective reinforcement depth after it is handled often can not meet design requirement.After common Treatment by Dynamic Compaction, often to carry out the consolidation by grouting reinforcement, otherwise adopt hoister in large tonnage tool, large-tonnage hammer ram and strengthen the requirement that the height that promotes hammer ram satisfies the effective reinforcement depth of foundation soil with regard to having only to deep soil.No matter adopt above-mentioned which kind of processing certainly will increase the disposal cost of foundation soil widely, lost and adopted the strong meaning of handling of ramming.
Summary of the invention
The object of the present invention is to provide a kind of gradation solidification and compacting method for groundsill that can make the increasing of ground effective reinforcement depth, bearing capacity of foundation soil improve, reduce the foundation soil disposal cost.
The object of the present invention is achieved like this:
1, it is compacted that first operation adopts novel post hammer deep layer, hammer end static ground force value is controlled at about 60-200kPa, and single-rammer energy is 800～8000KNm, and crater depth is controlled in 3 times of absolute altitude, post hammer point rams and adopts 1--3 all over finishing (coarse-grained soil is got low value, and fine grained soil is got high value);
2, it is compacted that second operation adopts common hammer ram middle level, hammer end static ground force value is controlled at about 30-60kPa, and single-rammer energy is 1000～3000KNm, and crater depth is controlled to be hammered into shape in high 2 times, adopt the common hammer of ramming to ram 1--3 all over (coarse-grained soil is got low value, and fine grained soil is got high value);
3, it is closely knit that the 3rd operation adopts low-yield ordinary tablet hammer shallow-layer, and hammer end static ground force value is controlled at about 15-30kPa, and single-rammer energy is 600～1000KNm, completely rams 2 times, and hammer ram overlap joint area should be in 30%.
4, the single-click number and the ceasing driving standard of above each operation are determined by construction check back, trial zone according to being reinforced soil layer situation and requirement for bearing capacity.
The present invention is according to requirement of engineering, in conjunction with former ground clay distribution situation, mainly be to need strong the rammer to handle the foundation soil thickness of reinforcing, select suitable tamping energy, adopt novel post hammer deep layer compacted earlier, adopt common hammer ram middle level compacted then, adopt low-yield ordinary tablet hammer shallow-layer closely knit again, determine by construction check back, trial zone according to being reinforced soil layer situation and requirement for bearing capacity at last.The present invention adopts novel post hammer in conjunction with common hammer ram, comprehensive strong rammer of sheet hammer, foundation soil is carried out layering reinforce closely knit processing method, can reach the purpose of deep soil, middle level soil and shallow soil being carried out simultaneously consolidation process, thereby the ground effective reinforcement depth is strengthened, bearing capacity of foundation soil improves, and reaches the effect that reduces the foundation soil disposal cost.
Description of drawings
The schematic diagram of Fig. 1 novel column-hammer forced tamping construction for the present invention's first procedure adopts;
The schematic diagram of Fig. 2 common hammer ram construction for second operation work of the present invention adopts;
Fig. 3 adopts the schematic diagram of ordinary tablet hammer construction for the present invention's three process;
Fig. 4 is the schematic diagram of the groundwork of having constructed;
Fig. 5 is that foundation width is at the schematic diagram of 2 times of hammer end diameters with interior tamping point;
Fig. 6 is the schematic diagram of foundation width at 2 times of above tamping points of hammer end diameter;
Fig. 7 is the schematic diagram of single column foundation;
Fig. 8 is the schematic diagram that whole audience district evenly arranges.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
The working procedure of gradation solidification and compacting method for groundsill is:
1, it is compacted that first operation adopts novel post hammer deep layer, hammer end static ground force value is controlled at about 60-200kPa, and single-rammer energy is 800～8000KNm, and crater depth is controlled in 3 times of absolute altitude, post hammer point rams and adopts 1--3 all over finishing (coarse-grained soil is got low value, and fine grained soil is got high value);
2, it is compacted that second operation adopts common hammer ram middle level, hammer end static ground force value is controlled at about 30-60kPa, and single-rammer energy is 1000～3000KNm, and crater depth is controlled to be hammered into shape in high 2 times, adopt the common hammer of ramming to ram 1--3 all over (coarse-grained soil is got low value, and fine grained soil is got high value);
3, it is closely knit that the 3rd operation adopts low-yield ordinary tablet hammer shallow-layer, and hammer end static ground force value is controlled at about 15-30kPa, and single-rammer energy is 600～1000KNm, completely rams 2 times, and hammer ram overlap joint area should be in 30%.
4, the single-click number and the ceasing driving standard of above each operation are determined by construction check back, trial zone according to being reinforced soil layer situation and requirement for bearing capacity.
Claims (1)
1, a kind of gradation solidification and compacting method for groundsill is characterized in that:
(1), first operation adopts novel post hammer deep layer compacted, hammer end static ground force value is controlled at about 60-200kPa, single-rammer energy is 800～8000KNm, crater depth is controlled in 3 times of absolute altitude, post hammer point rams and adopts 1--3 all over finishing;
(2), second operation adopts common hammer ram middle level compacted, hammer end static ground force value is controlled at about 30-60kPa, single-rammer energy is 1000～3000KNm, crater depth is controlled in high 2 times of hammer, adopts common ram to hammer into shape ram 1--3 time;
(3), the 3rd operation adopts low-yield ordinary tablet hammer shallow-layer closely knit, hammer end static ground force value is controlled at about 15-30kPa, single-rammer energy is 600～1000KNm, completely rams 2 times, hammer ram overlap joint area should be in 30%.
(4), the single-click number and the ceasing driving standard of above each operation, determine by construction check back, trial zone according to being reinforced soil layer situation and requirement for bearing capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610125146 CN101008177A (en) | 2006-11-23 | 2006-11-23 | Gradation solidification and compacting method for groundsill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610125146 CN101008177A (en) | 2006-11-23 | 2006-11-23 | Gradation solidification and compacting method for groundsill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101008177A true CN101008177A (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610125146 Pending CN101008177A (en) | 2006-11-23 | 2006-11-23 | Gradation solidification and compacting method for groundsill |
Country Status (1)
| Country | Link |
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| CN (1) | CN101008177A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535429A (en) * | 2012-01-20 | 2012-07-04 | 刘献刚 | Combined-rammer construction technology for foundation treatment |
| CN107100182A (en) * | 2017-05-17 | 2017-08-29 | 福建岩土工程勘察研究院 | Soft foundation cluster type layering precipitation no-arbitrary pricing pipe rams system and its construction method |
| CN113111411A (en) * | 2021-03-24 | 2021-07-13 | 湖南城市学院 | System and method for reinforcing deep silt foundation |
-
2006
- 2006-11-23 CN CN 200610125146 patent/CN101008177A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535429A (en) * | 2012-01-20 | 2012-07-04 | 刘献刚 | Combined-rammer construction technology for foundation treatment |
| CN107100182A (en) * | 2017-05-17 | 2017-08-29 | 福建岩土工程勘察研究院 | Soft foundation cluster type layering precipitation no-arbitrary pricing pipe rams system and its construction method |
| CN113111411A (en) * | 2021-03-24 | 2021-07-13 | 湖南城市学院 | System and method for reinforcing deep silt foundation |
| CN113111411B (en) * | 2021-03-24 | 2024-01-30 | 湖南城市学院 | System and method for reinforcing deep silt foundation |
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