CN208668431U - A kind of system of deep foundation pit support - Google Patents
A kind of system of deep foundation pit support Download PDFInfo
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- CN208668431U CN208668431U CN201821020352.3U CN201821020352U CN208668431U CN 208668431 U CN208668431 U CN 208668431U CN 201821020352 U CN201821020352 U CN 201821020352U CN 208668431 U CN208668431 U CN 208668431U
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- foundation pit
- steel pipe
- pile
- pipe support
- deep foundation
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Abstract
The utility model discloses a kind of system of deep foundation pit support, it is beaten vertically including several into the intracorporal steel pipe support pile (1) of foundation pit side soil, foundation pit side soil body side wall is covered with concrete nail wall (2), and it is inserted into several anchor cables (3) obliquely into the soil body on the concrete nail wall (2), the anchor cable (3) is by anchorage (4) fixed strain for being placed on the outside of concrete nail wall (2), while the top of adjacent steel pipe support pile (1) is fixedly connected by fried dough twist formula reinforcing bar Pan Liang (5)；The utility model has the advantage of, the high system of deep foundation pit support of a stability is formed by fried dough twist formula reinforcing bar Pan Liang, it is not only simple in structure, is easy for construction, and difficulty of construction is effectively reduced and shortens the construction period, the safety for also strengthening deep basal pit simultaneously, is particularly suitable for the deep-foundation pit engineering of the more backfill soil property of severe cold area rubble.
Description
Technical field
The utility model belongs to Geotechnical Engineering field, more particularly, to a kind of system of deep foundation pit support.
Background technique
In deep-foundation pit engineering, deep foundation pit support is the key that guarantee that excavation process is firm, for belonging to
Large-scale synclinal basin tectonic geology complex area in North China Platform type, Taizihe River recess, by upper Proterozoic erathem and cold around basin
The old stratum composition such as force system, Basin Central is Mesozoic sand, shale and volcanic series.Due to the shadow by multiple diastrophism,
Cause to inverted syncline is tiltedly become, axial direction is bordering on thing distribution.This brings very big to large-scale deep pit construction
Difficulty, and it is big using existing drilling fender post support construction difficulty, and the construction period is long, and input cost is high.
Summary of the invention
The utility model aim is: providing one kind and is not only simple in structure, is easy for construction, and difficulty of construction is effectively reduced simultaneously
Shorten the construction period, while also strengthening the safety of deep basal pit, is particularly suitable for the more backfill soil property of severe cold area rubble
System of deep foundation pit support.
The technical solution of the utility model is: a kind of system of deep foundation pit support, including several beat into foundation pit side vertically
The intracorporal steel pipe support pile of soil, foundation pit side soil body side wall are covered with concrete nail wall, and to soil on the concrete nail wall
It is inserted into several anchor cables obliquely in vivo, the anchor cable passes through the anchorage fixed strain that is placed on the outside of concrete nail wall, same to phase
The top of adjacent steel pipe support pile is fixedly connected by fried dough twist formula reinforcing bar Pan Liang, forms a stabilization by fried dough twist formula reinforcing bar Pan Liang
The high system of deep foundation pit support of property, is not only simple in structure, is easy for construction, and difficulty of construction is effectively reduced and shortens construction work
Phase, while the safety of deep basal pit is also strengthened, it is particularly suitable for the deep basal pit work of the more backfill soil property of severe cold area rubble
Journey.
The concrete nail wall includes internal layer steel mesh and outer reinforcement net as a preferred technical solution, and is set to
Pea gravel concreten layer between the internal layer steel mesh and the outer reinforcement net；Wherein the internal layer steel mesh and the steel pipe
Support pile is fixedly connected.
The anchorage includes that level is fixed on concrete nail wall side wall and corresponds to up and down as a preferred technical solution,
Two be arranged put more energy into floor, are vertically arranged and are fixed on two anchor plates for putting more energy into floor outboard end, be fixed on oblique on anchor plate
Iron block, and be fixed on the wedge block and be used for the anchoring piece of fixed strain anchor cable outboard end, the wherein outboard end of wedge block
Face is vertically arranged with anchor cable.
The bottom end of the steel pipe support pile is in sharpening shape as a preferred technical solution, and places pile cover on its top, is cut
Pointed steel pipe support pile can be squeezed into more smoothly in the soil body, and the pile cover that steel pipe support pile top is placed can prevent from hammering into shape
Steel pipe support pile is damaged when hitting, and foundation engineering measure needs have been taken into account while meeting the durability requirements of foundation pit.
The horizontal distance between adjacent steel pipe support pile is 0.35m~0.4m as a preferred technical solution,.
The steel pipe support pile injects in hollow setting and in it cement slurry as a preferred technical solution, increases steel
The strength of the mixing pile of pipe support pile.
The construction method of system of deep foundation pit support as described above, includes the following steps:
Step 1: according to measuring stake site is carried out after stake top absolute altitude excavation section by section operation side, then transferring down-hole hammer extremely
Stake site carries out drawing hole construction；
Step 2: steel pipe support pile is stacked by piling sequencing, and heap is put the bottom end that rear scene carries out steel pipe support pile well and cut
Point construction, and pile cover is placed on the top of steel pipe support pile；
Step 3: steel pipe support pile being hung into corresponding stake site and carries out vertical pitching pile, while keeping hammer, pile cover and steel pipe branch
Fender pile is on the same longitudinal axis；
Step 4: injecting cement slurry into the steel pipe support pile being partially disposed in non cohesire soil, and by adjacent steel pipe supporting
The top of stake is fixedly connected by fried dough twist formula reinforcing bar Pan Liang；
Step 5: the excavation pit on the inside of steel pipe support pile, and wall is followed closely in foundation pit side soil body side wall oversite concrete,
It is inserted into anchor cable on concrete nail wall obliquely into the soil body and passes through anchorage fixed strain, to complete system of deep foundation pit support
Construction.
The utility model has the advantages that:
1. the utility model carries out fried dough twist formula reinforcing bar Pan Liang on the top of adjacent steel pipe support pile, to form a stabilization
The high system of deep foundation pit support of property, is not only simple in structure, is easy for construction, and difficulty of construction is effectively reduced and shortens construction work
Phase, while the safety of deep basal pit is also strengthened, it is particularly suitable for the deep basal pit work of the more backfill soil property of severe cold area rubble
Journey.
2. the utility model is suitable for the deep foundation pit support in most of soil properties, it is artificial used in steel pipe supporting pile driving construction and
Auxiliary material is seldom, while reducing a large amount of artificial and materials that measure facility is spent again, save traditional bored concrete pile reinforcing bar and mixing
The consumption of soil is coagulated, one-time investment is saved.
3. frozen soil layer is thicker when winter construction in severe cold area, and construction area soil property is poor, utilizes down-hole hammer pilot hole
Broken frozen soil and rubble, can effectively ensure that the quality problems of steel pipe support pile during the pile driving process, reduce to steel pipe supporting
The destruction of stake.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the utility model system of deep foundation pit support side view；
Fig. 2 is the utility model system of deep foundation pit support top view；
Fig. 3 is the utility model steel pipe support pile and concrete nail wall connection schematic diagram；
Fig. 4 is the fried dough twist formula reinforcing bar disk beam schematic diagram on the utility model steel pipe support pile top；
Wherein: 1 steel pipe support pile, 2 concrete nail walls, 21 internal layer steel meshes, 22 outer reinforcement nets, 23 pea gravel concretens
Layer；3 anchor cables, 4 anchorages, 41 put more energy into floor, 42 anchor plates, 43 wedge blocks, 44 anchoring pieces, 5 fried dough twist formula reinforcing bar Pan Liang.
Specific embodiment
Embodiment: shown in 4, a kind of system of deep foundation pit support, including several vertically beat into foundation pit side soil
Intracorporal steel pipe support pile 1, foundation pit side soil body side wall are covered with concrete nail wall 2, and on concrete nail wall 2 into the soil body
It is inserted into several anchor cables 3 obliquely, the anchor cable 3 is while adjacent by being placed in 4 fixed strain of anchorage in the outside of concrete nail wall 2
The top of steel pipe support pile 1 is fixedly connected by fried dough twist formula reinforcing bar disk beam 5, the fried dough twist formula reinforcing bar disk beam 5 using 16 reinforcing bar of Φ into
Row construction, and the high system of deep foundation pit support of a stability is formed by the fried dough twist formula reinforcing bar disk beam 5, be not only simple in structure,
It is easy for construction, and difficulty of construction is effectively reduced and shortens the construction period, while also strengthening the safety of deep basal pit, it is especially suitable
Deep-foundation pit engineering for the more backfill soil property of severe cold area rubble.
The concrete nail wall 2 of the utility model includes internal layer steel mesh 21 and outer reinforcement net 22, and is set to internal layer steel
Pea gravel concreten layer 23 between muscle net 21 and outer reinforcement net 22；Wherein internal layer steel mesh 21 and the fixed company of steel pipe support pile 1
It connects.
The anchorage 4 of the utility model is fixed on two be correspondingly arranged on 2 side wall of concrete nail wall and up and down including level and adds
Strength floor 41 is vertically arranged and is fixed on two anchor plates 42 for putting more energy into 41 outboard end of floor, the wedge being fixed on anchor plate 42
Block 43, and be fixed on wedge block 43 and be used for the anchoring piece 44 of 3 outboard end of fixed strain anchor cable, the wherein outside of wedge block 43
End face is vertically arranged with anchor cable 3.
The bottom end of the steel pipe support pile 1 of the utility model is in sharpening shape, and sharpening length is 20 centimeters, and is put on its top
Pile cover is set, while being directly subjected to the position placement hardwood damping headblock of hammering, the steel pipe support pile 1 of sharpening shape on the pile cover
It can more smoothly squeeze into the soil body, and pile cover and damping headblock that 1 top of steel pipe support pile is placed can be prevented in hammering
Steel pipe support pile 1 is damaged, foundation engineering measure needs have been taken into account while meeting the durability requirements of foundation pit；It is adjacent simultaneously
Horizontal distance between steel pipe support pile 1 is 0.35m~0.4m, the diameter 159mm of steel pipe support pile 1, wall thickness 6mm, and length is
9m~12m, and steel pipe support pile 1 injects in hollow setting and in it cement slurry, and the pile body for increasing steel pipe support pile 1 is strong
Degree.
Such as the construction method of above-mentioned system of deep foundation pit support, include the following steps:
Step 1: according to measuring stake site is carried out after stake top absolute altitude excavation section by section operation side, then transferring down-hole hammer extremely
Stake site carries out drawing hole construction, is crushed frozen soil and rubble using down-hole hammer pilot hole, can effectively ensure that steel pipe support pile 1 heavy
Quality problems during stake reduce the destruction to steel pipe support pile 1；
Step 2: steel pipe support pile 1 is stacked by piling sequencing, and heap puts the bottom end that rear scene carries out steel pipe support pile 1 well
It fines away and constructs, and place pile cover on the top of steel pipe support pile 1；
Step 3: steel pipe support pile 1 being hung into corresponding stake site and carries out vertical pitching pile, while keeping hammer, pile cover and steel pipe branch
Fender pile 1 is on the same longitudinal axis, and when paying attention to piling, 1~2 meter of impact missing first is formally driven piles after correcting verticality again, then when heavy
To a certain depth and through review pile sinking quality it is good when, be further continued for hitting, until projected depth, if discovery the incipient stage stake position
Not just or inclination, levelling or steel pipe support pile 1 is extracted into inserting piling again；
Step 4: injecting cement slurry into the steel pipe support pile 1 being partially disposed in non cohesire soil, and by adjacent steel pipe branch
The top of fender pile 1 is fixedly connected by fried dough twist formula reinforcing bar disk beam 5；
Step 5: wall 2 is followed closely in 1 inside excavation pit of steel pipe support pile, and in foundation pit side soil body side wall oversite concrete,
It is inserted into anchor cable 3 obliquely into the soil body on concrete nail wall 2 and passes through 4 fixed strain of anchorage, to complete deep foundation pit support
The construction of system.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (6)
1. a kind of system of deep foundation pit support, which is characterized in that beaten vertically including several into the intracorporal steel pipe branch of foundation pit side soil
Fender pile (1), foundation pit side soil body side wall are covered with concrete nail wall (2), and oblique into the soil body on the concrete nail wall (2)
Be downwardly into several anchor cables (3), the anchor cable (3) by anchorage (4) fixed strain for being placed on the outside of concrete nail wall (2),
The top of adjacent steel pipe support pile (1) is fixedly connected by fried dough twist formula reinforcing bar Pan Liang (5) simultaneously.
2. system of deep foundation pit support according to claim 1, which is characterized in that the concrete nail wall (2) includes internal layer
Steel mesh (21) and outer reinforcement net (22), and be set between the internal layer steel mesh (21) and the outer reinforcement net (22)
Pea gravel concreten layer (23)；Wherein the internal layer steel mesh (21) is fixedly connected with the steel pipe support pile (1).
3. system of deep foundation pit support according to claim 1, which is characterized in that the anchorage (4) is fixed on including level
Two be correspondingly arranged on concrete nail wall (2) side wall and up and down put more energy into floor (41), are vertically arranged and are fixed on two and put more energy into floor
(41) anchor plate (42) of outboard end, the wedge block (43) being fixed on anchor plate (42), and it is fixed on the wedge block
(43) and it to be used for the anchoring piece (44) of fixed strain anchor cable (3) outboard end, wherein the end face outside of wedge block (43) and anchor cable (3)
It is vertically arranged.
4. system of deep foundation pit support according to claim 1, which is characterized in that the bottom end of the steel pipe support pile (1) is in
Sharpening shape, and pile cover is placed on its top.
5. system of deep foundation pit support according to claim 1, which is characterized in that the water between adjacent steel pipe support pile (1)
Flat distance is 0.35m~0.4m.
6. system of deep foundation pit support according to claim 1, which is characterized in that the steel pipe support pile (1) sets in hollow
It sets and injects cement slurry in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821020352.3U CN208668431U (en) | 2018-06-28 | 2018-06-28 | A kind of system of deep foundation pit support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821020352.3U CN208668431U (en) | 2018-06-28 | 2018-06-28 | A kind of system of deep foundation pit support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208668431U true CN208668431U (en) | 2019-03-29 |
Family
ID=65826352
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821020352.3U Active CN208668431U (en) | 2018-06-28 | 2018-06-28 | A kind of system of deep foundation pit support |
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| CN (1) | CN208668431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130336A (en) * | 2019-06-12 | 2019-08-16 | 山东建勘集团有限公司 | Locking structure built in anchor pole |
-
2018
- 2018-06-28 CN CN201821020352.3U patent/CN208668431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110130336A (en) * | 2019-06-12 | 2019-08-16 | 山东建勘集团有限公司 | Locking structure built in anchor pole |
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