CN109056740B - Construction method for judging whether secant pile is secant or not - Google Patents
Construction method for judging whether secant pile is secant or not Download PDFInfo
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- CN109056740B CN109056740B CN201810876496.7A CN201810876496A CN109056740B CN 109056740 B CN109056740 B CN 109056740B CN 201810876496 A CN201810876496 A CN 201810876496A CN 109056740 B CN109056740 B CN 109056740B
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- 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
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
Abstract
The invention relates to a construction method for judging whether an occlusive pile is occluded, which comprises the following steps: 1) firstly, preparing before construction, removing impurities on the ground and filling the groove; 2) measuring and paying off, calculating the coordinates of the center line of the row pile according to a design drawing, and performing on-site lofting by using a total station; 3) constructing a concrete guide wall; 4) the pile driver is in place, when the strength of the guide wall is high enough, the template is removed, and the center position of the lofting pile is repositioned; taking soil by a grab bucket after the pile driver is in place, pressing down the sleeve, and circulating the steps until the designed hole depth of the hole bottom is reached; 5) hoisting a reinforcement cage; 6) and (5) pouring concrete. The invention has the beneficial effects that: the invention is simple to use and easy to operate, and only a certain amount of concrete and pigments with different colors need to be mixed and stirred uniformly; according to the invention, the result can be directly obtained according to the digging hole and the soil discharging of the grab bucket, and the analysis result is simple and clear.
Description
Technical Field
The invention belongs to the technical field of foundation pit excavation supporting in underground engineering, and particularly relates to a construction method for judging whether an occlusive pile is occluded.
Background
With the continuous advance of the urbanization construction process, the development and utilization of underground space become more and more important. Among them, the development of foundation pit engineering is particularly rapid and is developing towards large depth and large area. The foundation pit engineering is strong in comprehensiveness and high in technical difficulty, and is a difficult problem in the engineering world all the time. The excavation of the foundation pit needs to ensure that the deformation of the foundation pit is within a control range, and the influence on the surrounding environment is fully reduced while the safety of the foundation pit is ensured. Common foundation pit enclosure forms include cement mixing piles, underground continuous walls, Larsen steel sheet piles and the like. Wherein, the cement mixing pile has unstable construction effect and poor waterproof effect; the underground continuous wall has good waterproof effect but high cost; the Larsen steel sheet pile has the defects of insufficient bearing capacity, easy overturning, easy leakage and the like. The secant pile serving as the foundation pit support with the new trend has the advantages of high construction efficiency, good seepage-proofing performance and supporting performance, high pile-forming quality, easiness in control of settlement deformation, low manufacturing cost, safety in construction and the like, and is rapidly developed and applied in recent years.
And in the application of actual engineering, whether interlock pile bottom is unknown, when the pile bottom was not completely occluded, its stagnant water just can't full play with the efficiency of retaining soil, and soil body and water outside the hole all can get into the foundation ditch inside through the space of non-interlock section, influence normal foundation ditch construction, probably cause the incident that gushes water and gush mud even, cause the inefficacy that collapses of foundation ditch.
In summary, a method for clearly judging whether the bottom of the pile is occluded is absent in the construction of the occlusive pile at present, and the judgment of whether the bottom of the occlusive pile is occluded is insufficient, so that an occlusive pile construction process is urgently needed, and whether the pile is completely occluded or not can be judged more quickly and clearly, and whether the pile needs to be corrected or not can be judged.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a construction method for judging whether an occlusive pile is occluded.
The construction method for judging whether the occlusive pile is occluded comprises the following steps:
1) firstly, preparing before construction, removing impurities on the ground and filling the groove;
2) measuring and paying off, calculating the coordinates of the center line of the row pile according to a design drawing, and performing on-site lofting by using a total station;
3) and (3) concrete guide wall construction: the method comprises the steps of groove excavation, reinforcement binding, template construction and concrete pouring construction; the grooves are excavated manually, and the center line is led into the grooves to ensure the correct center line of the guide wall; binding and arranging reinforcing steel bars after the trench is excavated; finally, performing concrete pouring construction after the template is qualified;
4) the pile driver is in place, when the strength of the guide wall is high enough, the template is removed, and the center position of the lofting pile is repositioned; taking soil by a grab bucket after the pile driver is in place, pressing down the sleeve, and circulating the steps until the designed hole depth of the hole bottom is reached;
5) hoisting a steel reinforcement cage: after the pore-forming detection is qualified, carrying out steel reinforcement cage placement work, and before the steel reinforcement cage is hoisted, carrying out inspection work on the steel reinforcement cage, such as the diameter, the size, whether a welding spot is deformed or not, and the like, and finally ensuring that the correct designed hole depth is achieved; the construction position is positioned between the plain concrete B1 pile and the plain concrete B2 pile and is meshed with the plain concrete B1 pile and the plain concrete B2 pile; the steel reinforcement cage is meshed with the plain concrete B2 pile and the plain concrete B3 pile, and the process is repeated;
6) pouring concrete: pouring concrete which is well mixed with blue pigment in advance into the sleeve until the bottom of the pile presents blue concrete, and then continuously pouring concrete without pigment into the sleeve by using a guide pipe to form a plain concrete B1 pile; the construction of other adjacent plain concrete piles is as above, except that the concrete colors at the bottoms of the two adjacent plain concrete piles are different, the two colors are arranged alternately, for example, the bottom of the plain concrete pile B2 is red concrete, the bottom of the plain concrete pile B3 is blue concrete, the bottom of the plain concrete pile B4 is red concrete, and so on; before the primary setting of the plain concrete B1 pile and the plain concrete B2 pile, pouring concrete between the plain concrete B1 pile and the plain concrete B2 pile to form a reinforced concrete A1 pile, and judging whether the pile is occluded; similarly, a reinforced concrete A2 pile is formed by pouring between the plain concrete B2 pile and the plain concrete B3 pile, whether the pile is occluded is judged, a reinforced concrete A3 pile is formed by pouring between the plain concrete B3 pile and the plain concrete B4 pile, and whether the pile is occluded is judged; the casing pipe and the guide pipe are lifted while being poured and tamped, and the casing pipe is kept vertical and smooth in the casing pipe lifting process and cannot be forcibly lifted; the lifting speed should also be controlled to prohibit lifting the guide pipe and the sleeve pipe out of the concrete surface, which causes pile breakage or other undesirable phenomena; pouring the mixture into the ground about 1 m above, pulling out the sleeve and the guide pipe, and removing the bad part on the pile top;
6.1) completing construction of a reinforced concrete A3 pile before initial setting of a plain concrete B3 pile and a plain concrete B4 pile; cutting the intersecting part of the reinforced concrete A3 pile, the plain concrete B3 pile and the plain concrete B4 pile by using a drilling machine, taking soil by using a grab bucket, and pressing down a sleeve; circularly cutting and taking soil by a grab bucket until the designed hole depth is reached; if the reinforced concrete A3 pile, the plain concrete B3 pile and the plain concrete B4 pile have piping phenomena in the process, the slump of the plain concrete B3 pile and the plain concrete B4 pile is required to be a little as possible during construction, whether concrete on the tops of the adjacent plain concrete B3 pile and the plain concrete B4 pile collapses or not is timely observed in the hole forming process of the reinforced concrete A3 pile, if the concrete collapses, the excavation is immediately stopped, the sleeve is timely pressed downwards, and the reinforced concrete A3 pile is filled with soil until the piping phenomena are stopped; when cutting and taking the soil to the bottom of the pile, observing whether the taken concrete has colors, and if the two colors of concrete exist at the same time, proving that the secant pile is indeed secant, and hoisting a steel reinforcement cage and grouting; the occlusion degree can be judged according to the amount of concrete with the same color;
6.2) when the reinforced concrete A3 pile drilling grab bucket is used for taking soil and forming a hole, whether the hole is provided with two colors or not can be observed in the soil taking process, if in the construction process, the cut concrete has only one color, red or blue when the hole is formed at a certain depth in the reinforced concrete A3 pile, and the fact that the reinforced concrete A3 pile and the plain concrete B3 pile or the plain concrete B4 pile are not meshed at the depth is proved; if the reinforced concrete A3 pile inclines, the casing pipe needs to be pulled out, concrete which is the same as the plain concrete pile is poured to the soil taking height at the last time, the verticality is rechecked, the casing pipe is aligned, excavation is carried out again, and the pile is circularly constructed to form a row of piles;
6.3) when the reinforced concrete A3 pile is drilled and earthed and the bottoms of two adjacent plain concrete B3 piles and plain concrete B4 piles are cut, the cut concrete only has one color; if the pile is red concrete, checking the perpendicularity of a reinforced concrete A3 pile, if the pile is inclined, pulling out the sleeve while pouring concrete the same as the plain concrete pile to the last soil taking height, checking the perpendicularity again, aligning the sleeve, excavating again, and circularly constructing to form a row of piles; if the reinforced concrete A3 pile is not inclined, the plain concrete B3 pile is proved to be inclined, the bottom of the pile is not occluded with the reinforced concrete A3 pile, the water stop function cannot be achieved, and a jet grouting pile needs to be additionally arranged on the outer sides of the reinforced concrete A3 pile and the plain concrete B3 pile for water prevention when the reinforced concrete A3 pile is normally constructed; when the steel bar cage is occluded with the reinforced concrete A3 pile, attention is paid to the fact that the steel bar cage cannot be damaged; if the concrete taken out from the grab bucket only has blue concrete, firstly, whether the reinforced concrete A3 pile is inclined or not is checked, if the plain concrete B4 pile is inclined, the operation is the same, the jet grouting pile is added on the outer sides of the reinforced concrete A3 pile and the plain concrete B4 pile, and attention still needs to be paid to the fact that a reinforcement cage in the reinforced concrete A3 pile cannot be damaged;
6.4) when the reinforced concrete A3 pile is drilled and taken out, and the bottoms of two adjacent plain concrete B3 piles and plain concrete B4 piles are cut, the taken concrete has no color, and the fact that the reinforced concrete A3 pile, the plain concrete B3 pile and the plain concrete B4 pile are not meshed proves, the plain concrete B3 pile and the plain concrete B4 pile are inclined, and reinforcing steel bars, grouting and sleeves are hoisted in the pile hole of the reinforced concrete A3 pile; and then adding a jet grouting pile at the outer sides of the plain concrete B3 pile and the reinforced concrete A3 pile and the outer sides of the plain concrete B4 pile and the reinforced concrete A3 pile, namely adding two jet grouting piles for waterproof treatment.
Preferably, the method comprises the following steps: in the step 6), the blue pigment is ultramarine blue, and the red pigment is red ferric oxide; the addition amount of the pigment is not more than 10 percent of the cement; after the pigment is added into the mixture, stirring for not less than 80 seconds per tank, and rotating the stirrer for more than 100 revolutions; adding redispersible rubber powder into the cement-based material.
The invention has the beneficial effects that:
1. the invention is simple to use and easy to operate, and only a certain amount of concrete and pigments with different colors need to be mixed and stirred uniformly.
2. According to the invention, the result can be directly obtained according to the digging hole and the soil production of the grab bucket, and the analysis result is simple and clear without doubt.
3. The invention can prompt field constructors to carry out construction adjustment in time according to the color loss of the concrete to be taken out, and carry out correction and remediation, thereby playing a role in verification.
4. The invention has low cost, and only needs to purchase the pigment to mix and stir with the concrete.
5. The invention does not add any object on the original construction machine, continues according to the normal operation flow and does not change the original construction process.
6. The invention has simple judgment, does not need professional technicians to carry out occlusion identification, and field personnel can carry out judgment according to the color of the taken concrete.
Drawings
FIG. 1 is a front view of a plain concrete pile;
FIG. 2 is a front view of a bite pile;
FIG. 3 is a top view of the bite pile;
FIG. 4 is a top view of the addition of a jet grouting pile;
fig. 5 is a top view of two jet grouting piles being added.
Description of reference numerals: plain concrete B1 pile 1, plain concrete B2 pile 2, blue concrete 3, red concrete 4, casing 5, reinforced concrete A1 pile 6, grab bucket 7, steel reinforcement cage 8, concrete guide wall 9, jet grouting pile 10, reinforced concrete A2 pile 11, plain concrete B3 pile 12, reinforced concrete A3 pile 13 and plain concrete B4 pile 14.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
The structure for judging whether the occlusive pile is occluded comprises a main body frame structure and a loading structure.
The main body frame structure comprises a pile machine, a plain concrete pile, a reinforced concrete pile, a sleeve 5, a grab bucket 7, a reinforcement cage 8 and a concrete guide wall 9, the main body structure is formed by drilling and taking soil through the pile machine and forming holes, and the reinforced concrete pile needs to lift the reinforcement cage 8.
The loading structure comprises a guide pipe and a grouting machine. Pouring concrete into the pile hole through the guide pipe, lifting the guide pipe and the sleeve 5 while pouring and vibrating, and firstly injecting concrete mixed with two different pigments into the bottom of the adjacent plain concrete pile hole.
The two pigment colors may be selected from blue and red. The blue pigment may be ultramarine blue, and the red pigment may be red iron oxide. Concrete uniformly mixed with the pigment is poured to the bottom of the plain concrete pile hole through the guide pipe, and the guide pipe needs to be replaced when concrete without the pigment is poured, so that the color disorder position is prevented. Colored concrete should be poured to the bottom of the pile hole
To
In the meantime.
As shown in fig. 1, after the pile 1 of the plain concrete B1 is drilled and the soil is taken, the blue pigment and the concrete are mixed and stirred uniformly to form blue concrete 3, the blue concrete 3 is poured to the bottom of the pile, and after the pile 2 of the plain concrete B2 is drilled, red concrete 4 which is stirred in advance is poured to the bottom. The pigment loading is normally about 6% of the cement and cannot exceed 10% at most. After the pigment is added to the mixture, the stirring time is not less than 80 seconds per pot, and the stirrer is usually rotated more than 100 revolutions. The addition of the redispersible rubber powder into the cement-based material can obviously improve the cohesion, improve the construction performance, improve the water retention, increase the breaking strength, enhance the durability and the like.
When the reinforced concrete A3 pile 13 is drilled and taken out and the bottom of two adjacent plain concrete B3 piles 12 and plain concrete B4 piles 14 are cut, the cut concrete only has one color
As shown in fig. 2 and 3, after the pile driver is in place, the reinforced concrete a3 pile 13 is cut into a plain concrete B3 pile 12 and a plain concrete B4 pile 14, the grab bucket 7 takes the soil, and the sleeve 5 is pressed down. Cutting the constructed reinforced concrete A1 pile 6 and the constructed reinforced concrete A2 pile 11 to the bottom of blue concrete 3 of a plain concrete B1 pile 1, the bottom of red concrete 4 of a plain concrete B2 pile 2 and the bottom of blue concrete 3 of a plain concrete B3 pile 12, and judging whether the interlocking pile is interlocked or not according to the hole unearthed colors of the reinforced concrete A1 pile 6 and the reinforced concrete A2 pile 11, wherein the interlocking pile needs to be corrected or remedied. After the soil is taken out, the tied reinforcement cage 8 needs to be hung in the hole, and before the reinforcement cage 8 is hung, whether the parameters of the reinforcement cage 8 are correct or not and whether welding points are good or not need to be checked again. In the concrete pouring process, the casing 5 and the guide pipe need to be lifted while the concrete is vibrated, or the interval time is not too long, and the casing 5 needs to be kept vertical and smooth and the casing 5 can not be forcibly lifted in the casing 5 lifting process. The lifting speed should also be controlled to prohibit lifting of the guide tube and casing 5 out of the concrete surface, causing pile breakage or other undesirable phenomena. The pile is poured about 1 m above the ground, the sleeve 5 and the guide pipe are pulled out, and the bad part of the pile top is removed.
As shown in fig. 4, the reinforced concrete a1 pile 6 is engaged with the plain concrete B1 pile 1 and the plain concrete B2 pile 2, and the reinforced concrete a2 pile 11 is engaged with the plain concrete B2 pile 2 and the plain concrete B3 pile 12. The reinforced concrete A3 pile 13 is not meshed with the plain concrete B3 pile 12, and measures are taken as follows: and adding a jet grouting pile 10 outside the reinforced concrete A3 pile 13 and the plain concrete B3 pile 12, and connecting the plain concrete pile and the reinforced concrete pile for waterproof treatment.
As shown in fig. 5, the reinforced concrete a1 pile 6 is engaged with the plain concrete B1 pile 1 and the plain concrete B2 pile 2, and the reinforced concrete a2 pile 11 is engaged with the plain concrete B2 pile 2 and the plain concrete B3 pile 12. When the reinforced concrete A3 pile 13 is constructed, the pile is not meshed with the adjacent plain concrete B3 pile 12 and plain concrete B4 pile 14. The method comprises the following steps: simultaneously, a jet grouting pile 10 is respectively added on the outer sides of a reinforced concrete A3 pile 13 and a plain concrete B3 pile 12 and the outer sides of a reinforced concrete A3 pile 13 and a plain concrete B4 pile 14, waterproof treatment is carried out, and seamless row piles are formed by connection.
Claims (2)
1. A construction method for judging whether an occlusive pile is occluded is characterized by comprising the following steps:
1) firstly, preparing before construction, removing impurities on the ground and filling the groove;
2) measuring and setting out, calculating the coordinates of the central line of the row piles, and performing on-site lofting;
3) and (3) construction of the concrete guide wall (9): the method comprises the steps of groove excavation, reinforcement binding, template construction and concrete pouring construction; manually excavating the groove, and introducing a central line into the groove; binding and arranging reinforcing steel bars after the trench is excavated; finally, performing concrete pouring construction after the template is qualified;
4) the pile driver is in place, when the strength of the guide wall is high enough, the template is removed, and the center position of the lofting pile is repositioned; taking soil by the grab bucket (7) after the pile driver is in place, pressing down the sleeve (5), and circulating the steps until the designed hole depth of the hole bottom is reached;
5) hoisting a reinforcement cage (8): after the pore-forming detection is qualified, the steel reinforcement cage (8) is placed to achieve the correct design of the pore depth; the construction position is located between the plain concrete B1 pile (1) and the plain concrete B2 pile (2), and the reinforcement cage (8) is mutually meshed with the plain concrete B1 pile (1) and the plain concrete B2 pile (2); a reinforcement cage (8) between the plain concrete B2 pile (2) and the plain concrete B3 pile (12) is meshed with the plain concrete B2 pile (2) and the plain concrete B3 pile (12), and the process is repeated;
6) pouring concrete: pouring concrete which is well mixed with blue pigment in advance into the sleeve (5) until the bottom of the plain concrete B1 pile (1) presents blue concrete (3), and then continuously pouring concrete without pigment into the sleeve (5) by using a guide pipe; other plain concrete piles are constructed as described above, the concrete colors of the bottoms of two adjacent plain concrete piles are different, and the two colors are arranged alternately; before the primary setting of the plain concrete B1 pile (1) and the plain concrete B2 pile (2), pouring concrete between the plain concrete B1 pile (1) and the plain concrete B2 pile (2) to form a reinforced concrete A1 pile (6), and judging whether the pile is occluded or not; pouring and forming a reinforced concrete A2 pile (11) between the plain concrete B2 pile (2) and the plain concrete B3 pile (12), judging whether the piles are engaged, and circulating the steps; the sleeve (5) and the guide pipe are lifted while pouring and tamping, the sleeve (5) is kept vertical and smooth in the process of lifting the sleeve (5), the lifting speed is controlled, the sleeve (5) and the guide pipe are pulled out when the sleeve is poured to the ground for more than one meter, and the bad part of the pile top is removed;
6.1) completing construction of a reinforced concrete A3 pile (13) before initial setting of a plain concrete B3 pile (12) and a plain concrete B4 pile (14); cutting the concrete at the intersection part of the reinforced concrete A3 pile (13), the plain concrete B3 pile (12) and the plain concrete B4 pile (14), taking out the soil by using a grab bucket (7), and pressing down the casing (5); circularly cutting and taking soil by a grab bucket (7) until the designed hole depth is reached; when cutting and taking the soil to the bottom of the pile, observing whether the taken concrete has colors, if the two colors of concrete exist at the same time, really occluding the occluded pile, and hoisting a reinforcement cage (8) and grouting; judging the occlusion degree according to the amount of concrete with the same color;
6.2) when the reinforced concrete A3 pile (13) is drilled and the hole is formed by the drilling grab bucket (7), whether the hole is simultaneously provided with two colors is observed in the soil taking process, if in the construction process, the cut concrete is only one color, red or blue when the hole is formed at a certain depth by the reinforced concrete A3 pile (13), and at the depth, the reinforced concrete A3 pile (13) is not engaged with the plain concrete B3 pile (12) or the plain concrete B4 pile (14); if the reinforced concrete A3 pile (13) inclines, the sleeve (5) is pulled out, concrete which is the same as the plain concrete pile is poured to the soil taking height at the last time, the verticality is rechecked, the sleeve (5) is straightened, excavation is carried out again, and the pile row is formed after circular construction;
6.3) when the reinforced concrete A3 pile (13) is drilled and taken out, and the bottom of two adjacent plain concrete B3 piles (12) and plain concrete B4 piles (14) is cut, the cut concrete only has one color; if the red concrete (4) is adopted, checking the perpendicularity of the reinforced concrete A3 pile (13), if the reinforced concrete A3 pile (13) is not inclined, the plain concrete B3 pile (12) is inclined, the bottom of the pile is not meshed with the reinforced concrete A3 pile (13), the water stop function cannot be achieved, the reinforced concrete A3 pile (13) is normally constructed, and a jet grouting pile (10) is additionally arranged on the outer sides of the reinforced concrete A3 pile (13) and the plain concrete B3 pile (12) for waterproof treatment; if the concrete taken out of the grab bucket (7) only contains blue concrete (3), firstly, whether the reinforced concrete A3 pile (13) is inclined or not is checked, and if the plain concrete B4 pile (14) is inclined, a jet grouting pile (10) is additionally arranged on the outer sides of the reinforced concrete A3 pile (13) and the plain concrete B4 pile (14) in the same operation manner;
6.4) when the reinforced concrete A3 pile (13) is drilled and taken out, and the bottoms of two adjacent plain concrete B3 piles (12) and plain concrete B4 piles (14) are cut, the taken concrete has no color, so that the reinforced concrete A3 pile (13), the plain concrete B3 pile (12) and the plain concrete B4 pile (14) are not engaged, the plain concrete B3 pile (12) and the plain concrete B4 pile (14) are inclined, steel bars are hung and grouted in the hole of the reinforced concrete A3 pile (13), and the sleeve (5) is lifted; and then adding one jet grouting pile (10) at the outer sides of the plain concrete B3 pile (12) and the reinforced concrete A3 pile (13) and the outer sides of the plain concrete B4 pile (14) and the reinforced concrete A3 pile (13), namely adding two jet grouting piles (10) for waterproof treatment.
2. The construction method for judging whether or not a bite pile is engaged according to claim 1, wherein in the step 6), the blue pigment is ultramarine blue, and the red pigment is red iron oxide; the addition amount of the pigment is not more than 10 percent of the cement; after the pigment is added into the mixture, stirring for not less than 80 seconds per tank, and rotating the stirrer for more than 100 revolutions; adding redispersible rubber powder into the cement-based material.
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| CN101591914A (en) * | 2009-06-25 | 2009-12-02 | 江苏华东建设基础工程有限公司 | A kind of job practices of using the foundation pit supporting construction of castinplace pile and agitation pile interlock |
| CN201762702U (en) * | 2010-09-17 | 2011-03-16 | 中铁十九局集团轨道交通工程有限公司 | Drilling bitten pile |
| CN103967002A (en) * | 2013-01-28 | 2014-08-06 | 深圳市勘察测绘院有限公司 | Occlusive pile construction method |
| CN104863120A (en) * | 2015-05-13 | 2015-08-26 | 中国建筑第八工程局有限公司 | Occlusive pile construction method and prefabricated occlusive piles used for method |
| CN107989032A (en) * | 2017-11-28 | 2018-05-04 | 深圳市工勘岩土技术有限公司 | A kind of construction method of punching interlocking pile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0663232B2 (en) * | 1989-06-01 | 1994-08-22 | ブルマン株式会社 | Method and apparatus for joining Yamadome steel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101591914A (en) * | 2009-06-25 | 2009-12-02 | 江苏华东建设基础工程有限公司 | A kind of job practices of using the foundation pit supporting construction of castinplace pile and agitation pile interlock |
| CN201762702U (en) * | 2010-09-17 | 2011-03-16 | 中铁十九局集团轨道交通工程有限公司 | Drilling bitten pile |
| CN103967002A (en) * | 2013-01-28 | 2014-08-06 | 深圳市勘察测绘院有限公司 | Occlusive pile construction method |
| CN104863120A (en) * | 2015-05-13 | 2015-08-26 | 中国建筑第八工程局有限公司 | Occlusive pile construction method and prefabricated occlusive piles used for method |
| CN107989032A (en) * | 2017-11-28 | 2018-05-04 | 深圳市工勘岩土技术有限公司 | A kind of construction method of punching interlocking pile |
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