CN112030774A - Method for constructing U-shaped sandstone riverbed steel trestle leading hole on shoal - Google Patents
Method for constructing U-shaped sandstone riverbed steel trestle leading hole on shoal Download PDFInfo
- Publication number
- CN112030774A CN112030774A CN202010993582.3A CN202010993582A CN112030774A CN 112030774 A CN112030774 A CN 112030774A CN 202010993582 A CN202010993582 A CN 202010993582A CN 112030774 A CN112030774 A CN 112030774A
- Authority
- CN
- China
- Prior art keywords
- steel
- platform
- hole
- riverbed
- steel platform
- 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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a shoal U-shaped sandstone riverbed steel trestle access hole construction method, which comprises the following steps: s1, manufacturing a steel platform according to the gradient water depth of the bottom of the riverbed; s2, measuring the position of the guide hole, hoisting the steel platform to the position of the guide hole, leveling the steel platform and fixing the steel platform in the riverbed; s3, after the steel platform is positioned and leveled, the drilling machine is installed at the drilling hole of the steel platform and fixed; s4, starting a drilling machine, trying to run, slowly sinking, and then drilling to a designed depth; and S5, lifting off the drilling machine, lifting the large steel pipe, inserting the large steel pipe into the drilled hole, and fixing the large steel pipe in place. The invention solves the problems that the U-shaped sandstone riverbed on the shoal is not strong in economic applicability, the traditional punching equipment cannot be accurately positioned, the vibration hammer cannot sink and the like, is particularly suitable for the shoal with the hard riverbed bottom of the riverbed of the village and town rivers and in a U shape, and has the advantages of convenient movement of a steel platform, high hole leading speed, strong economic practicability and construction period saving.
Description
Technical Field
The invention belongs to the technical field of trestle construction, and particularly relates to a method for constructing a steel trestle guide hole of a shoal U-shaped sandstone riverbed.
Background
Along with the high-speed development of the country, the requirements of the connection between villages and towns on the rapidness, smoothness and the like of the traffic are higher and higher under the national poverty-relief policy, river-crossing and river-crossing bridge projects are more and more, corresponding river-crossing construction is carried out, steel trestles are not separated, and holes are key in the steel trestle construction.
In the pilot hole construction, aiming at the problems that the hardness (sandstone and the like) depth (3-5 m) of a river bed of a river in villages and towns is hard, the unevenness of the bottom of the river bed is U-shaped, the economic applicability of large machines (rotary drilling and the like) is not strong, and the unevenness of the bottom of the river bed has the defects that the traditional punching equipment cannot be accurately positioned and a vibrating hammer cannot sink under the conditions of a rock stratum with high hardness and complex geology.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and aims to provide a method for constructing a steel trestle access hole of a U-shaped sandstone riverbed on a shoal.
In order to achieve the purpose, the invention adopts the following technical scheme: the method for constructing the steel trestle bridge guide hole of the shoal U-shaped sandstone riverbed comprises the following steps:
s1, manufacturing a steel platform according to the gradient water depth of the bottom of the riverbed;
s2, measuring the position of the guide hole, hoisting the steel platform to the position of the guide hole, leveling the steel platform and fixing the steel platform in the riverbed;
s3, after the steel platform is positioned and leveled, the drilling machine is installed at the drilling hole of the steel platform and fixed;
s4, starting a drilling machine, trying to run, slowly sinking, and then drilling to a designed depth;
and S5, lifting off the drilling machine, lifting the large steel pipe, inserting the large steel pipe into the drilled hole, and fixing the large steel pipe in place.
According to the technical scheme, the steel platform is installed in the river bed, and the drilling machine guide holes are installed on the steel platform, so that the problems that the river is not deep due to influence of river geology, the economic applicability of a large machine tool is not strong, the bottom of the river bed is uneven, the traditional punching equipment cannot be accurately positioned, the vibration hammer cannot sink under rock strata with high hardness and complex geological conditions and the like are solved.
In a preferred embodiment of the invention, the steel platform comprises a rectangular operating platform and supporting legs at least positioned at four corners of the operating platform, drilling holes convenient for a drilling machine to drill holes are reserved on the operating platform, at least two of the supporting legs are telescopic legs, the rest supporting legs are fixed legs, and when the number of the supporting legs is two, the two supporting legs are arranged on one side edge of the operating platform.
In the technical scheme, the steel platform is provided with the telescopic legs, the height difference steel platform is adjusted by the telescopic legs, and the leveling is convenient.
In a preferred embodiment of the present invention, the telescopic leg includes a tube core, an outer tube sleeved outside the tube core and fixedly connected to the operation table, and a pin connecting the tube core and the outer tube, wherein a pair of holes is formed in a side wall of the outer tube, a plurality of adjusting holes are formed in a side wall of the tube core and spaced apart from each other along a length direction of the tube core, and the pin can sequentially pass through the pair of holes and the adjusting holes to fix the tube core and the outer tube.
Among the above-mentioned technical scheme, outer tube and operation panel fixed connection are through the length of vertical slip tube core in order to adjust flexible leg in the outer tube, and after the steel platform level, the flexible leg is fixed to reuse bolt.
In a preferred embodiment of the invention, the fixed leg and the outer tube are each made of 40 steel tubes, the inner tube is made of 30 steel tubes and the latch is made of a T-shaped steel bar. The fixed leg and the telescopic leg are both made of sectional materials, so that the cost is low and the processing is convenient.
In a preferred embodiment of the invention, a steel casing for guiding the drill rod of the drilling machine is arranged below the operating platform at the position of the drilling hole. The steel casing plays a role in guiding and limiting, and the condition that the drill rod of the drilling machine cannot be guided normally due to overlarge rotation amplitude in the drilling process caused by water flow can be avoided.
In another preferred embodiment of the invention, hanging rings are fixedly connected to four corners of the operating platform.
In another preferred embodiment of the present invention, step S2 specifically includes: the stay ropes are arranged at two adjacent corners of the steel platform, four equal-length steel wire ropes are fixed to the lifting rings at four corners of the steel platform through clamping rings, the steel platform is lifted through a crawler crane and is simultaneously measured out of the position of the lead hole by a constructor through a steel ruler, and after the steel platform is initially positioned, the total station is used for accurately lifting the steel platform to the position of the lead hole according to design coordinates.
In another preferred embodiment of the present invention, the step S2 further includes: the height of four corners of the steel platform is measured by a measuring staff through a level gauge to obtain corresponding height difference data, the two corners of the crawler crane are hung by two steel wire ropes on one side needing to be lifted or lowered, the pins on the telescopic legs are taken out firstly to enable the pipe cores to move freely, then the measured result is used for enabling the lower ends of the pipe cores to be located at the bottom of a river bed through one side of the lifting steel platform, and when the steel platform is slowly lifted to reach the horizontal position, the pins are inserted to enable the pipe cores to be connected with the outer pipe.
In another preferred embodiment of the invention, in the process of adjusting the position of the pipe core, when the position of the steel platform changes, the steel platform is slowly hoisted by the crawler crane, and then the total station is used for paying off and positioning again and repeatedly adjusting until the position of the lead hole is within an error range, and the bolt is locked.
In another preferred embodiment of the present invention, step S3 specifically includes: after the steel platform is positioned and leveled, the drilling machine is hoisted to the position of a hole of a drill hole by using a crawler crane, sleepers with the same length as the drilling machine are arranged on the two sides and the back of the drilling machine after the drilling machine is installed in place, I-shaped steel is welded on the outer sides of the sleepers to fix the drilling machine, then a triangular support frame is hoisted, and a drill pipe drill cylinder is installed after the drill pipe drill cylinder is firmly fixed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a steel platform in an embodiment of the present application.
Reference numerals in the drawings of the specification include: the steel protective sleeve comprises an operating table 10, a drilling hole 101, an upper flat layer 11, a lower flat layer 12, a fixed leg 20, a telescopic leg 30, a pipe core 31, an adjusting hole 311, an outer pipe 32, an opposite opening 321, a bolt 33, a steel protective sleeve 40, a reinforcing triangle 51 and a reinforcing inclined strut 52.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The invention provides a method for constructing a steel trestle access hole of a shoal U-shaped sandstone riverbed, which comprises the following steps in a preferred embodiment of the invention:
s1, manufacturing a steel platform according to the gradient water depth of the bottom of the riverbed;
s2, measuring the position of the guide hole, hoisting the steel platform to the position of the guide hole, leveling the steel platform and fixing the steel platform in the riverbed;
s3, after the steel platform is positioned and leveled, the drilling machine is installed at the drilling hole 101 of the steel platform and fixed;
s4, starting a drilling machine, trying to run, slowly sinking, and then drilling to a designed depth;
and S5, lifting off the drilling machine, lifting the large steel pipe, inserting the large steel pipe into the drilled hole, and fixing the large steel pipe in place.
As shown in fig. 1, the steel platform includes a rectangular operating platform 10 and supporting legs located at four corners of the operating platform 10, according to actual conditions, more supporting legs can be provided, a drilling hole 101 convenient for drilling by the drilling machine is reserved in the middle of the operating platform 10, at least two of the supporting legs are telescopic legs 30, the rest of the supporting legs are fixed legs 20, and when the number of the telescopic legs 30 is two, the two telescopic legs 30 are arranged on one side edge of the operating platform 10.
In a specific embodiment, for example, the operation table 10 is a square platform of 6 × 6m, the operation table 10 includes an upper flat layer 11 and a lower flat layer 12 of 6 × 6m formed by welding I20I-steel and a steel plate with a thickness of 10mm, and hanging rings are fixedly connected to four corners of the upper end of the upper flat layer 11. A reinforcing triangular plate 51 of 200x150mm is arranged between the lower end of the upper flat layer 11 and the fixed leg 20 and the telescopic leg 30, a reinforcing triangular plate 51 of 200x150mm is also arranged between the lower end of the lower flat layer 12 and the fixed leg 20 and the telescopic leg 30, and a reinforcing inclined strut 52 with an angle of 45 degrees is also arranged between the lower end of the lower flat layer 12 and the outer cylinders of the fixed leg 20 and the telescopic leg 30.
In the present embodiment, the four support legs are provided at the four corners of the console 10, and the four support legs are the fixed legs 20 and the telescopic legs 30, respectively, in fig. 1, the two support legs on the rear side of the console 10 and the two support legs on the front side of the console 10. When the steel platform is installed in the riverbed, the riverbed is of a shoal U-shaped structure, the two fixed legs 20 are arranged on the side of the riverbank, and the two telescopic legs 30 are arranged far away from the side of the riverbank.
The telescopic leg 30 comprises a tube core 31, an outer tube 32 and a plug pin 33, the outer tube 32 is sleeved outside the tube core 31 and fixedly connected with the operating platform 10, the plug pin 33 is used for connecting the outer tube and the outer tube, the fixed leg 20 and the outer tube 32 are both made of 40 steel tubes with the length of 2.5m, the tube core 31 is made of 30 steel tubes with the length of 4m, the plug pin 33 is made of T-shaped steel ribs, and the wall thicknesses of the 40 steel tubes and the 30 steel tubes are both 8 mm. The side wall of the outer tube 32 is provided with an opposite opening 321, the side wall of the tube core 31 is provided with a plurality of adjusting holes 311 which are distributed at intervals along the length direction of the tube core 31, and the bolt 33 can sequentially penetrate through the opposite opening 321 and the adjusting holes 311 to fix the tube core 31 and the outer tube 32. The opening 321 is preferably provided towards the center of the console 10 to facilitate insertion and removal of the plug 33; the adjusting holes 311 are arranged within 1.5m below the top of the die 31, and the vertical spacing is 100-150 mm.
In another preferred embodiment, a steel casing 40 for guiding the drill rod of the drilling machine is further arranged at the position of the drilling hole 101, the steel casing 40 is positioned below the operating platform 10, the steel casing 40 is welded on the upper flat layer 11 and the lower flat layer 12, the steel casing 40 is made of 60 steel pipes with the length of 2m, and the wall thickness of the 60 steel pipes is 8 mm.
In another preferred embodiment, step S2 specifically includes: two adjacent corners of the steel platform are provided with pull ropes connected with the crawler crane and used for controlling the general direction of the steel platform; four steel wire ropes with the length of 6m are fixed to lifting rings at four corners of a steel platform through clamping rings, professional construction personnel can measure the positions of the leading holes through steel scales by lifting the steel platform through a crawler crane, after the steel platform is initially positioned, a total station is used for accurately lifting the steel platform to the positions of the leading holes according to design coordinates, and multiple times of adjustment and measurement can be carried out when the steel platform is influenced by water flow and riverbed height difference in the process.
After the steel platform is hung and placed by the crawler crane at the stable position of the guide hole, the steel platform is in an unbalanced state due to the fact that the bottom of the river bed is uneven, at the moment, the height of four corners of the steel platform is measured by a measuring staff through a level gauge to obtain corresponding height difference data, the crawler crane hangs the two corners at one side needing to be lifted or lowered through two steel wire ropes, the plug pin 33 on the telescopic leg 30 is taken out firstly, the pipe core 31 can move freely, then the measured result passes through one side of the lifting steel platform, the lower end of the pipe core 31 is located at the bottom of the river bed, and when the steel platform is lifted slowly to reach the horizontal position, the plug pin 33 is inserted, and the pipe core 31 and the outer.
In the process of adjusting the steel platform, the position of the steel platform can be changed, the steel platform can be slowly hoisted through the crawler crane, the total station instrument is used for paying off and positioning again for repeated adjustment until the position of the guide hole is within the error range, and the bolt 33 is locked. In practice, the adjusting holes 311 on the tube core 31 can be properly encrypted according to the gradient of the river bed, so as to facilitate the adjustment.
In another preferred embodiment, step S3 specifically includes: after the steel platform is positioned and leveled, the drilling machine is hoisted to the drilling hole 101 through the crawler crane, after the drilling machine is installed in place, sleepers which are as long as the drilling machine are arranged on the two sides and the back of the drilling machine, I20I-shaped steel is welded on the outer sides of the sleepers to fix the drilling machine and prevent the drilling machine from vibrating to cause position deviation in the drilling process, then the crawler crane is used for hoisting a triangular support frame fixedly connected with the steel platform, and a drilling rod drill barrel is installed after the drill rod drill barrel is firmly fixed.
The construction process after the hole leading can adopt the prior art, is not the innovation point of the invention and is not detailed here.
It should be noted that, the bottom of the river bed and the slope water depth are checked before the hole leading to manufacture the length of the pipe core 31 of the steel platform and the distance between the adjusting holes 311, the corresponding size and the position of the drilling hole 101 are determined according to the size of the drilling machine and the height of the triangular support, and meanwhile, the safety and hydrological monitoring are enhanced in the hole leading process to prevent the construction from being influenced by the sudden water rise at the upstream.
In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The method for constructing the steel trestle bridge guide hole of the U-shaped sandstone riverbed on the shoal is characterized by comprising the following steps of:
s1, manufacturing a steel platform according to the gradient water depth of the bottom of the riverbed;
s2, measuring the position of the guide hole, hoisting the steel platform to the position of the guide hole, leveling the steel platform and fixing the steel platform in the riverbed;
s3, after the steel platform is positioned and leveled, the drilling machine is installed at the drilling hole of the steel platform and fixed;
s5, starting a drilling machine, trying to run, slowly sinking, and then drilling to a designed depth;
and S5, lifting off the drilling machine, lifting the large steel pipe, inserting the large steel pipe into the drilled hole, and fixing the large steel pipe in place.
2. The method of constructing the access hole of the steel trestle of the shoal U-shaped sandstone riverbed according to claim 1, wherein the steel platform comprises a rectangular operating platform and supporting legs at least positioned at four corners of the operating platform, drilling holes convenient for a drilling machine to drill holes are reserved on the operating platform, at least two of the supporting legs are telescopic legs, the rest of the supporting legs are fixed legs, and when the number of the supporting legs is two, the two supporting legs are arranged on one side edge of the operating platform.
3. The method of claim 2, wherein the telescopic leg comprises a tube core, an outer tube sleeved outside the tube core and fixedly connected with the operating platform, and a bolt for connecting the outer tube and the outer tube, wherein the side wall of the outer tube is provided with a pair of holes, the side wall of the tube core is provided with a plurality of adjusting holes distributed at intervals along the length direction of the tube core, and the bolt can sequentially pass through the pair of holes and the adjusting holes to fix the tube core and the outer tube.
4. The method of constructing a shoal U-shaped sandstone riverbed steel trestle access hole of claim 3, wherein the fixed leg and the outer pipe are both made of 40 steel pipes, the inner pipe is made of 30 steel pipes, and the pin is made of a T-shaped steel bar.
5. The method for constructing the access hole of the shoal U-shaped sandstone riverbed steel trestle according to claim 2, wherein a steel casing which is positioned below an operating platform and used for guiding a drill rod of the drilling machine is further arranged at the position of the drilling hole.
6. The method of constructing a hole for a steel trestle of a shoal U-shaped sandstone river bed according to claim 2, wherein hanging rings are fixedly connected to four corners of the operating platform.
7. The method for constructing the access hole of the shoal U-shaped sandstone riverbed steel trestle according to claim 6, wherein the step S2 specifically comprises the following steps:
the stay ropes are arranged at two adjacent corners of the steel platform, four equal-length steel wire ropes are fixed to the lifting rings at four corners of the steel platform through clamping rings, the steel platform is lifted through a crawler crane and is simultaneously measured out of the position of the lead hole by a constructor through a steel ruler, and after the steel platform is initially positioned, the total station is used for accurately lifting the steel platform to the position of the lead hole according to design coordinates.
8. The method of constructing a trestle of shoal U-shaped sandstone riverbed steel, according to claim 7, wherein the step S2 further comprises:
the height of four corners of the steel platform is measured by a measuring staff through a level gauge to obtain corresponding height difference data, the two corners of the crawler crane are hung by two steel wire ropes on one side needing to be lifted or lowered, the pins on the telescopic legs are taken out firstly to enable the pipe cores to move freely, then the lower ends of the pipe cores are located at the bottom of a river bed through one side of the steel platform, and the pins are inserted when the steel platform is slowly lifted to reach the horizontal position, so that the pipe cores and the outer pipe are connected together.
9. The method of claim 8, wherein in the process of adjusting the position of the pipe core, when the position of the steel platform changes, the steel platform is slowly hoisted by the crawler crane, and then the total station is used for paying off and positioning again to repeatedly adjust until the position of the pilot hole is within an error range, and the bolt is locked.
10. The method for constructing the access hole of the shoal U-shaped sandstone riverbed steel trestle according to any one of claims 1 to 9, wherein the step S3 specifically comprises:
after the steel platform is positioned and leveled, the drilling machine is hoisted to the position of a hole of a drill hole by using a crawler crane, sleepers with the same length as the drilling machine are arranged on the two sides and the back of the drilling machine after the drilling machine is installed in place, I-shaped steel is welded on the outer sides of the sleepers to fix the drilling machine, then a triangular support frame is hoisted, and a drill pipe drill cylinder is installed after the drill pipe drill cylinder is firmly fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010993582.3A CN112030774A (en) | 2020-09-21 | 2020-09-21 | Method for constructing U-shaped sandstone riverbed steel trestle leading hole on shoal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010993582.3A CN112030774A (en) | 2020-09-21 | 2020-09-21 | Method for constructing U-shaped sandstone riverbed steel trestle leading hole on shoal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112030774A true CN112030774A (en) | 2020-12-04 |
Family
ID=73574689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010993582.3A Pending CN112030774A (en) | 2020-09-21 | 2020-09-21 | Method for constructing U-shaped sandstone riverbed steel trestle leading hole on shoal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112030774A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030209363A1 (en) * | 2002-05-08 | 2003-11-13 | Kadaster Ali G. | Method of and system for building structures and drilling oil and gas wells in arctic, inaccessible or environmentally sensitive locations |
| CN103898909A (en) * | 2014-03-10 | 2014-07-02 | 中交一航局第三工程有限公司 | Steel trestle pile foundation ring cutting method pile implanting process in bare rock area |
| CN106800054A (en) * | 2017-01-17 | 2017-06-06 | 上海市基础工程集团有限公司 | Self-leveling mobile steel platform |
| CN107059850A (en) * | 2017-05-25 | 2017-08-18 | 中交第三航务工程局有限公司 | A kind of inland river deep water rock quality base steel tube pile embeded in rock construction system and technique |
| CN109723049A (en) * | 2017-10-31 | 2019-05-07 | 烟台中集来福士海洋工程有限公司 | Jack up drilling platform and its elevating method |
| CN209854723U (en) * | 2018-12-21 | 2019-12-27 | 中国建筑第六工程局有限公司 | Leveling tripod device for rock-socketed pile planting of anchor rod |
| CN210027800U (en) * | 2019-05-21 | 2020-02-07 | 中交三公局第三工程有限公司 | Shipborne percussion drilling and guiding device used under bare rock condition |
| CN210482262U (en) * | 2019-05-21 | 2020-05-08 | 中交三公局第三工程有限公司 | Temporary platform for trestle steel pipe pile hole leading under bare rock condition |
-
2020
- 2020-09-21 CN CN202010993582.3A patent/CN112030774A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030209363A1 (en) * | 2002-05-08 | 2003-11-13 | Kadaster Ali G. | Method of and system for building structures and drilling oil and gas wells in arctic, inaccessible or environmentally sensitive locations |
| CN103898909A (en) * | 2014-03-10 | 2014-07-02 | 中交一航局第三工程有限公司 | Steel trestle pile foundation ring cutting method pile implanting process in bare rock area |
| CN106800054A (en) * | 2017-01-17 | 2017-06-06 | 上海市基础工程集团有限公司 | Self-leveling mobile steel platform |
| CN107059850A (en) * | 2017-05-25 | 2017-08-18 | 中交第三航务工程局有限公司 | A kind of inland river deep water rock quality base steel tube pile embeded in rock construction system and technique |
| CN109723049A (en) * | 2017-10-31 | 2019-05-07 | 烟台中集来福士海洋工程有限公司 | Jack up drilling platform and its elevating method |
| CN209854723U (en) * | 2018-12-21 | 2019-12-27 | 中国建筑第六工程局有限公司 | Leveling tripod device for rock-socketed pile planting of anchor rod |
| CN210027800U (en) * | 2019-05-21 | 2020-02-07 | 中交三公局第三工程有限公司 | Shipborne percussion drilling and guiding device used under bare rock condition |
| CN210482262U (en) * | 2019-05-21 | 2020-05-08 | 中交三公局第三工程有限公司 | Temporary platform for trestle steel pipe pile hole leading under bare rock condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110206493B (en) | Construction process of full-sleeve full-rotation bored pile | |
| CN205296874U (en) | Information -based construction monitor positioning device of stake integration | |
| CN109487822B (en) | Method for installing and adjusting steel pipe column in reverse construction and control device | |
| CN113605390B (en) | Accurate positioning structure for pile connection and construction method | |
| CN112900450A (en) | Rotary drilling and full-rotation combined back-inserting method positioning method for steel pipe structure pile by reverse construction method | |
| CN105672314B (en) | A kind of semi-inverse method steel pipe post pile construction method | |
| CN107130592B (en) | construction method for long spiral drill and impact drill double-machine composite hole-forming cast-in-place pile | |
| CN112411574A (en) | Old bridge pile position original site impact drill matched rotary drilling hole forming construction method | |
| CN111519613B (en) | Construction method of test pile with ultra-buried depth in rock stratum | |
| CN113638417A (en) | Pile connection accurate positioning pouring system and construction method | |
| CN104372798A (en) | Construction method of all-casing all-direction drilling rig | |
| CN115369860A (en) | Construction method of super-long isolation pile close to subway | |
| CN112709529A (en) | Radial grading pore-forming construction method and application of hard rock layer drilled pile | |
| CN114673153A (en) | Construction method of complex stratum overlength large-diameter pile foundation casing structure | |
| CN111456009A (en) | Engineering pile guiding device in piling construction and using method thereof | |
| CN213267538U (en) | Leading hole platform for U-shaped sandstone riverbed steel trestle on shoal | |
| CN112030774A (en) | Method for constructing U-shaped sandstone riverbed steel trestle leading hole on shoal | |
| CN106403996A (en) | Production method of forced centering observation mark stake for precision engineering measurement | |
| CN212956615U (en) | Cover and dig accurate positioning platform of reverse construction method steel pipe center pillar based on BIM | |
| CN212561551U (en) | Steel stand hoist and mount and transfer positioner | |
| CN214944030U (en) | Locking and fixing device suitable for bridge pile foundation percussion drill | |
| CN114718053A (en) | Method for installing and positioning foundation pit steel stand column by reverse construction method and installation structure | |
| CN110629756A (en) | Anchor cable removing method | |
| CN214116620U (en) | Adjustable support for accurate positioning of permanent double-steel-pipe column | |
| CN205228789U (en) | Loading device of simulation loess tunnel lock foot anchor pipe end head atress |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201204 |