CN103967034A - Novel inclined column pitched roof expansion plate and pile combined foundation - Google Patents
Novel inclined column pitched roof expansion plate and pile combined foundation Download PDFInfo
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- CN103967034A CN103967034A CN201410117699.XA CN201410117699A CN103967034A CN 103967034 A CN103967034 A CN 103967034A CN 201410117699 A CN201410117699 A CN 201410117699A CN 103967034 A CN103967034 A CN 103967034A
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- foundation
- expansion plate
- inclined column
- foundation body
- pile
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Abstract
The invention provides a novel inclined column pitched roof expansion plate and pile combined foundation and relates to the technical field of high-tension transmission lines. The novel inclined column pitched roof expansion plate and pile combined foundation comprises a combined foundation body which is divided into an upper portion inclined column expansion plate type foundation body and a lower portion bored pile foundation body, and the combined foundation body is formed by bonding or welding a steel reinforcement cage formed by main bars and reinforcing steel bars in the upper portion inclined column expansion plate type foundation body and a main bar of the lower portion bored pile foundation body into a whole through concrete in a pouring mode. The novel inclined column pitched roof expansion plate and pile combined foundation is divided into the two portions, the upper portion inclined column expansion plate type foundation body and the lower portion bored pile foundation body are combined, the requirement for the bearing capacity of two kinds of soil bodies in flood plain areas can be fully met, meanwhile, rainwater can be prevented from accumulating on the roof of the foundation, the corrosion of the rainwater to the steel structure is reduced, and the strength reduction caused by fire bending treatment on foundation anchor bolts can be further avoided.
Description
Technical field:
The present invention relates to ultra-high-tension power transmission line technical field, relate in particular to a kind of novel batter post oblique top expansion board-stake composite foundation.
Background technology:
At present in High Voltage Transmission Line Engineering, the base form in alluvial flat area and stability thereof become the current key subjects that need solution, in this type of area, there is certain thickness cohesive soil in top, stratum often, soil property is better, lower floor is soft layer, be generally mud or soft plasticviscosity soil, be difficult to excavation, present stage often adopts the large plate base of steel concrete or bored concrete pile foundation etc. for this kind of geology, wherein large plate base exists excavated volume large, the problems such as environmental disruption is serious, and the general operating expenses of bored concrete pile foundation is higher, often improve construction costs, and this type of basis batter post flat-top modes that adopt more, need take the bent processing of fire to stone bolt on basis, thereby cause the strength degradation of stone bolt.
Summary of the invention:
The invention provides and be a kind ofly adapted at alluvial flat area and need not take the bent compound basis of basis-batter post expansion board-stake of processing of fire to foot bolt fundamentally.
In order to solve the technical problem existing in background technology, the present invention is by the following technical solutions: it comprises composite foundation, it is divided into two parts, top is batter post expansion slab foundation, bottom is bored pile foundation, and composite foundation is by the main muscle colligation of reinforcing cage that in top batter post expansion slab foundation, main muscle and reinforcing bar form and lower boreholes bored concrete pile foundation or be welded into a whole and form by pouring concrete.
The present invention is divided into two parts, top is the batter post expansion slab foundation that adopts the heavy method opposing of soil uplift force, bottom is the pile foundation that relies on soil body side friction opposing uplift force, two kinds of basic combinations design according to actual soil layer situation, can accomplish fully to meet the requirement of the two kinds of soil bearing capacities in alluvial flat area, can prevent that rainwater from piling up at basic end face simultaneously, reduce the corrosion of rainwater to steel work, can also avoid the bent processing of foot bolt fire fundamentally and cause strength degradation.
Brief description of the drawings:
Fig. 1 is structural representation of the present invention.
Detailed description of the invention:
With reference to Fig. 1, the present invention includes composite foundation, it is divided into two parts, top is batter post expansion slab foundation 1, bottom is bored pile foundation 2, and composite foundation is by the main muscle colligation of reinforcing cage that in top batter post expansion slab foundation 1, main muscle and reinforcing bar form and lower boreholes bored concrete pile foundation 2 or be welded into a whole and form by pouring concrete.
Top planes and the horizontal plane of the batter post expansion slab foundation 1 of described top have certain angle, and the top of top batter post expansion slab foundation 1 is provided with stone bolt 3, stone bolt 3 is vertical with top planes, while steel tower being installed on basis like this, stone bolt can easily be installed without carrying out fiery bent processing, and stone bolt intensity can reduction.
When the present invention constructs, first by the moulding of pile foundation part, then build slab foundation part, its Specific construction technique is as follows:
1) first adopt construction machinery to hole on the ground, reach the reinforcing cage of putting into stake after projected depth;
2) pile body is in the milk and forms bored pile;
3) when concrete setting sclerosis reach design strength 30% after carry out mechanical equivalent of light excavation foundation ditch, and reach the projected depth of slab foundation part;
4), when after foundation ditch moulding, ream the reinforcing bar slurry of sclerosis around of the above part in the end, hole;
5) put into the main muscle of slab foundation part and the reinforcing cage of reinforcing bar formation base, by main pile foundation muscle and the colligation of slab foundation reinforcing cage or be welded into entirety;
6) adopt masterplate to form board-like foundation mould, in mould, concreting is imbedded stone bolt simultaneously, completion after overall concrete setting sclerosis.
The stressed three phases that is divided on basis of the present invention:
(1) under less load action, mainly born by the deadweight of slab foundation and pile foundation;
(2), along with the further increase of load, above pull out load and mainly born by basis deadweight, the deadweight of the slab foundation top resistance to plucking soil body, until reach slab foundation ultimate bearing capacity.
(3), upper when pulling out load and exceeding slab foundation ultimate bearing capacity, pile foundation starts to bring into play carrying effect, now by pulling out load on slab foundation and pile foundation shared, until foundation soil body entirety is sheared destruction.
Claims (3)
1. novel batter post oblique top expansion board-stake composite foundation, it is characterized in that, it comprises composite foundation, it is divided into two parts, top is batter post expansion slab foundation, bottom is bored pile foundation, and composite foundation is by the main muscle colligation of reinforcing cage that in top batter post expansion slab foundation, main muscle and reinforcing bar form and lower boreholes bored concrete pile foundation or be welded into a whole and form by pouring concrete.
2. basis according to claim 1, is characterized in that, top planes and the horizontal plane of described top batter post expansion slab foundation have certain angle.
3. basis according to claim 1, is characterized in that, the top of described top batter post expansion slab foundation is provided with stone bolt, and stone bolt is vertical with top planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117699.XA CN103967034A (en) | 2014-03-24 | 2014-03-24 | Novel inclined column pitched roof expansion plate and pile combined foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410117699.XA CN103967034A (en) | 2014-03-24 | 2014-03-24 | Novel inclined column pitched roof expansion plate and pile combined foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103967034A true CN103967034A (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410117699.XA Pending CN103967034A (en) | 2014-03-24 | 2014-03-24 | Novel inclined column pitched roof expansion plate and pile combined foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103967034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499501A (en) * | 2014-12-08 | 2015-04-08 | 国家电网公司 | Narrow-foundation-tower single-pile pier-type self-stabilized foundation for power transmission line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3784340B2 (en) * | 2002-03-14 | 2006-06-07 | 理夫 田中 | Pile foundation |
| CN101255699A (en) * | 2008-01-10 | 2008-09-03 | 广东省电力设计研究院 | Novel structure inclined inserting digging hole pile foundation |
| CN201588221U (en) * | 2010-01-27 | 2010-09-22 | 四川电力设计咨询有限责任公司 | Artificial dug pile basis |
| CN201809776U (en) * | 2010-06-25 | 2011-04-27 | 国网直流工程建设有限公司四川工程建设部 | Batter post chuck pile foundation |
| CN203821426U (en) * | 2014-03-24 | 2014-09-10 | 杨雪锋 | Novel inclined column pitched roof extension board-pile composite foundation |
-
2014
- 2014-03-24 CN CN201410117699.XA patent/CN103967034A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3784340B2 (en) * | 2002-03-14 | 2006-06-07 | 理夫 田中 | Pile foundation |
| CN101255699A (en) * | 2008-01-10 | 2008-09-03 | 广东省电力设计研究院 | Novel structure inclined inserting digging hole pile foundation |
| CN201588221U (en) * | 2010-01-27 | 2010-09-22 | 四川电力设计咨询有限责任公司 | Artificial dug pile basis |
| CN201809776U (en) * | 2010-06-25 | 2011-04-27 | 国网直流工程建设有限公司四川工程建设部 | Batter post chuck pile foundation |
| CN203821426U (en) * | 2014-03-24 | 2014-09-10 | 杨雪锋 | Novel inclined column pitched roof extension board-pile composite foundation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499501A (en) * | 2014-12-08 | 2015-04-08 | 国家电网公司 | Narrow-foundation-tower single-pile pier-type self-stabilized foundation for power transmission line |
| CN104499501B (en) * | 2014-12-08 | 2017-02-22 | 国家电网公司 | Narrow-foundation-tower single-pile pier-type self-stabilized foundation for power transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |