CN112459103A - Iron tower pile foundation structure and preparation method thereof - Google Patents
Iron tower pile foundation structure and preparation method thereof Download PDFInfo
- Publication number
- CN112459103A CN112459103A CN202011354512.XA CN202011354512A CN112459103A CN 112459103 A CN112459103 A CN 112459103A CN 202011354512 A CN202011354512 A CN 202011354512A CN 112459103 A CN112459103 A CN 112459103A
- Authority
- CN
- China
- Prior art keywords
- bearing platform
- anchor
- anchor bar
- iron tower
- lower bearing
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- 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
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
Abstract
The invention discloses an iron tower pile foundation structure and a preparation method thereof, wherein the preparation method comprises the following steps: the foundation pit, the bearing platform, the reinforcing ribs, the anchor rib holes and the anchor ribs; the foundation pit is vertically and downwards excavated in a soil body, the bearing platform comprises an upper bearing platform and a lower bearing platform, the lower bearing platform is matched with the foundation pit and is positioned in the foundation pit, the upper bearing platform is positioned above the lower bearing platform, and the central axis of the upper bearing platform is the same as that of the lower bearing platform; the reinforcing rib is fixedly connected inside the bearing platform; the anchor bar hole is a hole which is vertically and downwards formed in the bottom of the lower bearing platform at a preset distance at an even interval, the depth of the anchor bar hole is 1900-2000mm, the diameter of the anchor bar is smaller than the aperture of the anchor bar hole, the anchor bar hole is vertically and downwards inserted from the center of the anchor bar hole, the anchor bar is fixed in the anchor bar hole by pouring fine sand concrete into the anchor bar hole, and the top end of the anchor bar is positioned in the lower bearing platform. The invention disperses the gravity of the iron tower borne by the bearing platform by using the anchor bars and transmits the gravity to the rock stratum, thereby reducing the burden of the bearing platform, enhancing the strength and the stability of the pile foundation structure of the iron tower, satisfying the stable arrangement of the iron tower in plateau areas and geological weak areas, and improving the safety and the reliability.
Description
Technical Field
The invention belongs to the technical field of foundation structures of power transmission towers, and particularly relates to a tower pile foundation structure and a preparation method thereof.
Background
The transmission tower is an important device in the power transmission engineering. In order to ensure the normal operation of power transmission, the transmission tower should be stably fixed on the ground and have certain requirements of wind resistance, ice coating resistance and the like. However, with the improvement of voltage transmission of transmission lines, the requirements on the horizontal bearing capacity and the overturning moment of the foundation of the power transmission line iron tower are higher and higher, and the traditional foundation pit pouring iron tower cannot meet the fixing requirements on the iron tower.
In order to meet the requirements of wind resistance, ice coating resistance and the like of the iron tower, mounting holes are usually formed in an iron tower main body, and reinforcing elements are mounted on the iron tower main body through bolts. The prior art mainly aims at the iron tower, does not reinforce the foundation of the iron tower, and cannot fundamentally solve the problem of reinforcing the iron tower, and particularly, the iron tower is arranged in a weak soil area, so that the problem of installation of the iron tower is solved if the stability of the iron tower cannot be improved by improving a pile foundation structure.
Chinese patent No. CN 204151814U discloses a high-voltage transmission line iron tower pile foundation structure, which comprises a pile cap, a pile, an anchor rod, a foundation pit and a surface soil body, wherein the upper end of the pile is positioned in the pile cap, the pile cap is positioned in the foundation pit, and the foundation pit is formed by excavating in the surface soil body; the section of the pile cap is n-shaped, reinforcing ribs and a reinforcing steel bar bottom plate are arranged in the pile cap, the reinforcing ribs are arranged annularly, and the reinforcing steel bar bottom plate is positioned in the center of the pile cap; the upper end of the pile is positioned in the convex part of the bottom surface of the pile cap, the pile is radially and obliquely arranged, a certain included angle is formed between the upper end of the pile and the vertical direction, and a spiral is upwards arranged along the bottom end of the pile anchor. According to the design, the pile cap is designed to be n-shaped, and the annular reinforcing ribs and the reinforcing steel bar bottom plate are arranged in the pile cap, so that the pulling resistance of the pile is improved.
Disclosure of Invention
The invention aims to provide a novel iron tower pile foundation structure, solves the problem that the traditional iron tower installation mode is difficult to meet the requirement of stable installation of a high-voltage line power transmission iron tower, meets the requirement of stable arrangement, safety and reliability of the iron tower in plateau areas and geological weak areas.
The technical scheme adopted by the invention is as follows: an iron tower pile foundation structure, comprising:
the foundation pit is formed by vertically and downwards excavating in a soil body;
the bearing platform comprises an upper bearing platform and a lower bearing platform, the lower bearing platform is matched with the foundation pit and is positioned in the foundation pit, the upper bearing platform is positioned above the lower bearing platform, and the central axes of the upper bearing platform and the lower bearing platform are the same;
the reinforcing rib is fixedly connected inside the bearing platform;
further comprising:
the anchor bar holes are holes which are vertically and downwards formed in the bottom of the lower bearing platform at uniform intervals of preset distance, and the depth of the anchor bar holes is 1900-2000 mm;
the anchor bar, the anchor bar diameter is less than anchor bar hole aperture, and the anchor bar inserts the anchor bar hole from anchor bar hole central authorities vertically downwards, and anchor bar bottom and rock stratum interval predetermined distance fix the anchor bar in the anchor bar hole through pouring fine sand concrete to the anchor bar hole, and the anchor bar top is located the cushion cap down.
Furthermore, the diameter of each anchor bar is smaller than the diameter of each anchor bar hole by 50 +/-10 mm, and the spacing distance between the bottom end of each anchor bar and the rock stratum is 150 +/-10 mm.
Furthermore, the number of the anchor rib holes is at least 9, the anchor rib holes are arranged in the lower bearing platform in a square matrix mode, one anchor rib hole is located on the central axis of the lower bearing platform, and the radius of the upper bearing platform does not exceed the shortest distance from the center of the lower bearing platform to the outermost anchor rib hole.
Furthermore, the bottom end of the anchor bar is provided with a fixed claw, the top end of the anchor bar is provided with a mechanical anchoring steel bar, and the mechanical anchoring steel bar and the anchor bar are welded with the reinforcing rib after being pasted with fillet welds on two sides.
Furthermore, the strengthening rib includes a plurality of cushion cap reinforcing bars, and a plurality of cushion cap reinforcing bars vertically and horizontally staggered and connect the reinforcing bar cage that forms and the foundation ditch matching after buckling, lie in inside the cushion cap down.
Further, the strengthening rib still includes a plurality of main muscle, a plurality of main muscle are arranged along last cushion cap lateral wall face circumference, and its bottom is stretched into down the cushion cap and is located cushion cap bottom down, and its top is close to last cushion cap top end face to a plurality of main muscle inboards and the outside are along length direction interval predetermined distance difference circumferential connection interior stirrup and outer stirrup.
Furthermore, the top end surface and the side wall of the upper bearing platform face the main ribs to form a protective layer with the thickness of 50 +/-5 mm.
A preparation method of an iron tower pile foundation structure comprises the following steps:
s1: digging a foundation pit and drilling an anchor bar hole according to a design point, ensuring that the integrity of a rock structure is not damaged, and after the rock is formed into the hole, carrying out hole inspection by a professional;
s2: cleaning the hole wall of the anchor bar hole, vertically placing the anchor bar, keeping the anchor bar not in contact with the hole wall, fully wetting the hole wall, and pouring fine sand concrete to fix the anchor bar;
s3: and after the anchor bars are completely fixed, arranging reinforcing ribs on the foundation pit cushion layer, binding and connecting the vertical molds by using the reinforcing bars, replacing the molds with the foundation pit walls for pouring and forming after checking that the foundation pits are correct, removing the molds after curing, and backfilling the foundation pits.
Further, in the step S2, the fine sand concrete has a fine stone grain size of 5-8mm, medium sand is adopted, and an expanding agent with cement amount of 6-8% is mixed into the fine sand concrete.
Further, in the step S2, the fine aggregate concrete is poured in layers and compacted by vibration, and the layering thickness is controlled to be 0.3-0.5 m.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the invention, on the basis of arranging the bearing platform in the excavated foundation pit, the anchor rib hole is drilled downwards, the depth of the anchor rib hole at least reaches 1900mm, the thin stone concrete is adopted to pour and fix the anchor rib to connect the rock stratum and the bearing platform, and the gravity borne by the bearing platform of the iron tower is further dispersed and transmitted to the rock stratum, so that the load of the bearing platform is reduced, the strength and the stability of the pile foundation structure of the iron tower are enhanced, the stable arrangement of the iron tower in plateau areas and geological weak areas is met, and the safety and the reliability are improved;
2) the gap between the anchor bar and the anchor bar hole is beneficial to uniform fine sand concrete pouring, especially the gap for fine sand concrete pouring is reserved at the bottom end of the anchor bar, the position of the anchor bar is fixed through the fine sand concrete, the influence of deformation of the anchor bar after long-term use on the stability of a pile foundation structure is prevented, the connection tightness between the anchor bar and a rock stratum is further enhanced, and the force transmission is facilitated;
3) according to the invention, the bottom end of the anchor bar is provided with the fixed claw to ensure that the anchor bar is positioned in the center of the anchor bar hole, so that the pouring effect of fine sand concrete is further ensured, the top end of the anchor bar is provided with the mechanical anchoring steel bar to be welded with the reinforcing rib, the anchor bar is further stabilized from the top end, and the connection between the anchor bar and the bearing platform steel bar is enhanced, so that the force transmission is facilitated;
4) according to the invention, the circular upper bearing platform and the square lower bearing platform are designed, the stress area of the square lower bearing platform is enlarged, anchor bars are conveniently and uniformly arranged, the force is deeply transmitted to the ground bottom through the anchor bars, the load of the bearing platform is reduced, 9 anchor bars are arranged, the number of drilled holes is reduced under the condition of meeting the use function of a pile foundation structure, and the cost is reduced;
5) the reinforcing ribs are respectively arranged according to the shapes of the upper bearing platform and the lower bearing platform, so that the structural strength of the bearing platform is improved by the reinforcing ribs, the connection tightness of the upper bearing platform and the lower bearing platform is enhanced by the fact that the main ribs of the upper bearing platform extend into the lower bearing platform, and the gravity borne by the upper bearing platform is favorably transmitted to the lower bearing platform through the main ribs.
Drawings
Fig. 1 is a front view of a pile foundation structure of the present invention;
FIG. 2 is a top view of the platform of the present invention;
FIG. 3 is a cross-sectional view of the upper deck A-A of the present invention.
The labels in the figure are: 1. the foundation pit comprises a foundation pit body, 2, a bearing platform, 21, an upper bearing platform, 22, a lower bearing platform, 3, reinforcing ribs, 31, bearing platform reinforcing steel bars, 32, main ribs, 33, inner stirrups, 34, outer stirrups, 4, anchor rib holes, 5 and anchor ribs.
Detailed Description
The invention will be further explained in the following with reference to the drawings attached to the specification in order to facilitate better understanding by those skilled in the art.
Referring to fig. 1-3, an iron tower pile foundation structure includes a foundation pit 1, a bearing platform 2, reinforcing ribs 3, anchor rib holes 4 and anchor ribs 5.
The foundation pit 1 is vertically excavated downwards in a soil body, is of a cuboid structure and is used for arranging the bearing platform 2, so that the bearing platform 2 is connected with the soil body, and the stability of the bearing platform 2 is enhanced.
The bearing platform 2 comprises an upper bearing platform 21 and a lower bearing platform 22, the lower bearing platform 22 is positioned in the foundation pit 1 and is of a cuboid structure matched with the foundation pit 1, so that the bearing of the gravity from the iron tower above the bearing platform is facilitated, and the arrangement of the anchor bars 5 is facilitated; the upper bearing platform 21 is of a cylindrical structure and is positioned above the lower bearing platform 22, the central axes of the upper bearing platform 21 and the lower bearing platform 22 are the same, the gravity of the iron tower is uniformly transmitted to the lower bearing platform 22, and structural balance is kept.
The reinforcing ribs 3 are fixedly connected inside the bearing platform 2 and comprise a plurality of reinforcing steel bar bearing platforms 31 and a plurality of main ribs 32; a plurality of cushion cap reinforcing bars 31 criss-cross and connect the reinforcing bar cage that forms and match with foundation ditch 1 after buckling, lie in inside cushion cap 22 down for cushion cap 22 intensity under the increase. Specifically, the distance between adjacent bearing platform reinforcing steel bars 31 is not more than 10cm, the bearing platform reinforcing steel bars 31 are connected in a binding mode, and the overlapping length of the joints is 15-25cm, so that the purpose of ensuring the stability and firmness of the reinforcement cage is achieved. The plurality of main ribs 32 are circumferentially arranged along the side wall surface of the upper bearing platform 21, the bottom ends of the main ribs extend into the lower bearing platform 22 and are positioned at the bottom end of the lower bearing platform 22, the top ends of the main ribs are close to the top end surface of the upper bearing platform 21, the inner sides and the outer sides of the plurality of main ribs 32 are circumferentially connected with the inner stirrups 33 and the outer stirrups 34 at preset intervals in the length direction respectively, the inner stirrups 33 and the outer stirrups 34 are used for stabilizing the main ribs 32, pillars inside the upper bearing platform 21 are jointly formed, the structural strength of the upper bearing platform 21 is enhanced, and the force born by the upper bearing platform 21 is transmitted to the lower bearing.
Specifically, the rock-entering depth of the lower bearing platform 22 is more than 500mm, the upper bearing platform 21 is positioned on the ground and has the height of 600mm, and the thickness is enough to bear the gravity of the iron tower; and the thickness of the protective layer formed by the top end surface and the side wall surface of the upper bearing platform 21 facing the plurality of main ribs 32 is 50mm, so that the main ribs 32 are positioned in the upper bearing platform 21 to ensure the supporting and reinforcing effect on the upper bearing platform 21, and the main ribs 32 are prevented from being damaged after the protective layer is damaged for a long time to influence the structure of the upper bearing platform 21.
The anchor bar holes 4 are holes which are vertically formed downwards at the bottom of the lower bearing platform 22 at regular intervals, in the embodiment, 9 anchor bar holes 4 are arranged, the depth of the anchor bar holes is 1900mm, and the hole diameter of the anchor bar holes is 70 mm; the anchor bar holes 4 are arranged in a square matrix in the lower bearing platform 22, one anchor bar hole 4 is positioned on the central axis of the lower bearing platform 22 and the upper bearing platform 21, and the radius of the upper bearing platform 21 is not more than the shortest distance from the center of the lower bearing platform 22 to the outermost anchor bar hole 4, so that the transmission range of gravity is expanded by using the anchor bars 4, the stress area is increased, and the stress load is reduced.
A preparation method of an iron tower pile foundation structure comprises the following steps:
s1: digging a foundation pit 1 and drilling an anchor bar hole 4 according to a design point to ensure that the integrity of a rock structure is not damaged, and after the rock is formed into a hole, a professional checks the hole;
s2: cleaning the hole wall of an anchor bar hole 4, vertically placing an anchor bar 5, keeping the anchor bar 5 not in contact with the hole wall, fully wetting the hole wall, pouring and fixing the anchor bar by fine sand concrete, wherein the particle size of fine stones in the fine sand concrete is 5-8mm, medium sand is adopted, an expanding agent with the cement amount of 6-8% is mixed in the fine sand concrete, the strength of the concrete still reaches the C30 grade, layered pouring and vibrating compaction are adopted during pouring, and the layered thickness is controlled to be 0.3-0.5 m.
S3: pouring a cushion layer and arranging reinforcing ribs 3 at the bottom end of the foundation pit 1 after the anchor bars 5 are completely fixed, then adopting bearing platform reinforcing steel bars 31 for binding connection and erecting a mould, making a mould according to the design size of the upper bearing platform 21, replacing the mould with the foundation pit wall for pouring and forming the bearing platform 2 after checking that no errors exist, removing the mould after curing, and backfilling the foundation pit 1.
Claims (10)
1. An iron tower pile foundation structure, comprising:
the foundation pit (1) is formed by vertically and downwards excavating in a soil body;
the bearing platform (2) comprises an upper bearing platform (21) and a lower bearing platform (22), the lower bearing platform (22) is positioned in the foundation pit (1) and matched with the foundation pit (1), the upper bearing platform (21) is positioned above the lower bearing platform (22), and the central axes of the upper bearing platform (21) and the lower bearing platform (22) are the same;
the reinforcing rib (3) is fixedly connected inside the bearing platform (2);
it is characterized by also comprising:
the anchor bar holes (4) are holes which are vertically and downwards formed in the bottom of the lower bearing platform (22) at regular intervals and have the depth of 1900-;
anchor bars (5), anchor bars (5) diameter is less than anchor bar hole (4) aperture, and anchor bars (5) are from anchor bar hole (4) central authorities vertical downwards insert anchor bar hole (4), and anchor bars (5) bottom and rock stratum interval predetermined distance, fix anchor bars (5) in anchor bar hole (4) through pouring fine sand concrete to anchor bar hole (4), and anchor bars (5) top is close to lower cushion cap (22) top.
2. The iron tower pile foundation structure of claim 1, wherein: the diameter of the anchor bar (5) is 50 +/-10 mm smaller than that of the anchor bar hole (4), and the spacing distance between the bottom end of the anchor bar (5) and the rock stratum is 150 +/-10 mm.
3. The iron tower pile foundation structure of claim 1, wherein: the anchor bar (5) bottom sets up fluke (51), and the top sets up mechanical anchoring reinforcing bar (52), mechanical anchoring reinforcing bar (52) and anchor bar (5) two-sided post-fillet weld with strengthening rib (3) welding.
4. The iron tower pile foundation structure of claim 1, wherein: the anchor bar holes (4) are arranged in 9 at least, are arranged in a square matrix in the lower bearing platform (4), one anchor bar hole (4) is positioned on the central axis of the lower bearing platform (22), and the radius of the upper bearing platform (21) does not exceed the shortest distance from the center of the lower bearing platform (22) to the outermost anchor bar hole (4).
5. The iron tower pile foundation structure of claim 1, wherein: the iron tower pile foundation structure of claim 1, wherein: the reinforcing rib (3) comprises a plurality of bearing platform reinforcing steel bars (31), the bearing platform reinforcing steel bars (31) are vertically and horizontally staggered and are connected to form a reinforcing cage matched with the foundation pit (1) after being bent, and the reinforcing cage is located inside the lower bearing platform (22).
6. The iron tower pile foundation structure of claim 1, wherein: the reinforcing rib (3) further comprises a plurality of main ribs (32), the side wall surfaces of the upper bearing platform (21) are circumferentially arranged on the plurality of main ribs (32), the bottom end of each main rib extends into the lower bearing platform (22) to be located at the bottom end of the lower bearing platform (22), the top end of each main rib is close to the top end surface of the upper bearing platform (21), and the inner sides and the outer sides of the plurality of main ribs (32) are circumferentially connected with the inner stirrups (33) and the outer stirrups (34) at preset intervals along the length direction.
7. The iron tower pile foundation structure of claim 6, wherein: the top end surface and the side wall of the upper bearing platform (21) face the main ribs (32) to form a protective layer with the thickness of 50 +/-5 mm.
8. The preparation method of the iron tower pile foundation structure according to any one of claims 1 to 7, characterized by comprising the following steps:
s1: digging a foundation pit (1) and drilling an anchor bar hole (4) according to a design point to ensure that the integrity of a rock structure is not damaged, and after the rock is formed into a hole, a professional checks the hole;
s2: cleaning the hole wall of the anchor rib hole (4), vertically placing the anchor rib (5), keeping the anchor rib (5) not in contact with the hole wall, fully wetting the hole wall, and pouring fine sand concrete to fix the anchor rib (5);
s3: after the anchor bars (5) are completely fixed, the foundation pit (1) is cushioned and provided with the reinforcing ribs (3), a plurality of reinforcing steel bars (31) are bound and connected with the vertical mold, the foundation pit wall is used for replacing the mold to carry out bearing platform pouring molding after the foundation pit is checked to be correct, the mold is removed after the maintenance, and the foundation pit (1) is backfilled.
9. The preparation method of the iron tower pile foundation structure according to claim 8, wherein the preparation method comprises the following steps: in the step S2, the fine sand concrete has the fine stone grain diameter of 5-8mm, medium sand is adopted, and the fine sand concrete is doped with the expanding agent with the cement dosage of 6-8%.
10. The preparation method of the iron tower pile foundation structure according to claim 8, wherein the preparation method comprises the following steps: and S2, pouring the fine stone concrete layer by layer and vibrating the fine stone concrete layer to compact the fine stone concrete, wherein the layer thickness is controlled to be 0.3-0.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354512.XA CN112459103A (en) | 2020-11-27 | 2020-11-27 | Iron tower pile foundation structure and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011354512.XA CN112459103A (en) | 2020-11-27 | 2020-11-27 | Iron tower pile foundation structure and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112459103A true CN112459103A (en) | 2021-03-09 |
Family
ID=74809771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011354512.XA Pending CN112459103A (en) | 2020-11-27 | 2020-11-27 | Iron tower pile foundation structure and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112459103A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818746A (en) * | 2021-09-30 | 2021-12-21 | 峻江建设有限公司 | Iron tower applied to plateau mountain area |
-
2020
- 2020-11-27 CN CN202011354512.XA patent/CN112459103A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113818746A (en) * | 2021-09-30 | 2021-12-21 | 峻江建设有限公司 | Iron tower applied to plateau mountain area |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111424644B (en) | Carrier pile construction process | |
| CN111119059B (en) | Ultrahigh composite support system for high-pier cast-in-place box girder and construction method | |
| CN111042185B (en) | Construction method of basement raft foundation with tower crane foundation | |
| CN105332380B (en) | Strut changing structure and method for underground building | |
| CN109972519B (en) | Construction method of prefabricated hollow pier installation structure | |
| CN107435338A (en) | Overhead transmission line concrete precast pipe pile cushion cap attachment means | |
| CN111364352A (en) | Prefabricated pipe pier and cast-in-place pile connecting structure and construction method | |
| CN101806060B (en) | Prestressed cuboid support pile for building foundation pit, manufacturing method thereof and forming die | |
| CN112459103A (en) | Iron tower pile foundation structure and preparation method thereof | |
| CN112030720A (en) | Prefabricated bent cap and pier stud socket type connecting structure and construction method | |
| CN109403224B (en) | Cover plate culvert cast-in-place roof truss type slip form system and construction method | |
| CN214005724U (en) | Iron tower pile foundation structure | |
| CN206800434U (en) | A kind of bridge pile foundation composite reinforcing structure | |
| CN111691402A (en) | Prefabricated concrete-filled steel tube tubular pile capable of being connected with each other and manufacturing method thereof | |
| CN211547797U (en) | Tower crane foundation structure suitable for basement raft foundation | |
| CN211340742U (en) | Anti-settlement foundation | |
| CN210049264U (en) | Assembled foundation | |
| CN106368347A (en) | Wall connecting structure and construction method | |
| CN218027787U (en) | Connecting structure for rigidity adjusting device and prefabricated hollow pile | |
| CN212772363U (en) | Civil building foundation construction reinforcing apparatus | |
| CN220132896U (en) | Friction pile | |
| CN211522670U (en) | Expansive soil large-deformation upwarp-preventing foundation structure | |
| CN215088339U (en) | Support device for dry fountain | |
| CN220377257U (en) | Anti-floating structure for bored pile reinforcement cage | |
| CN218779490U (en) | Pile foundation concrete pouring platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |