CN111764281A - Bridge construction method based on cradle construction - Google Patents
Bridge construction method based on cradle construction Download PDFInfo
- Publication number
- CN111764281A CN111764281A CN202010357536.4A CN202010357536A CN111764281A CN 111764281 A CN111764281 A CN 111764281A CN 202010357536 A CN202010357536 A CN 202010357536A CN 111764281 A CN111764281 A CN 111764281A
- Authority
- CN
- China
- Prior art keywords
- concrete
- bearing platform
- foundation pit
- construction
- template
- 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
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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Foundations (AREA)
Abstract
The invention discloses a bridge construction method based on cradle construction, relating to the technical field of bridge construction, wherein the construction method comprises the following steps: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit. According to the construction method, a construction site and the excavated foundation pit are measured through a surveying instrument, and the bearing platform template and the bearing platform reinforcing steel bars which are matched are processed and produced, so that the accuracy of bridge construction is improved, the bearing platform template is subjected to a concrete pouring procedure through a hanging basket construction method, the effect of segmented construction of the prestressed concrete is improved, namely the stability of the bridge is improved, and the strength of the concrete is enhanced through a water distribution and maintenance method which is 20-30 d in period and 6-14 h at intervals.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a bridge construction method based on cradle construction.
Background
Constructing a bridge according to the design content; mainly refers to the contents of bridge construction technology, construction organization, construction management, construction quality and the like. The bridge construction method is very important for the construction of the road surface.
However, in the prior art, most bridge construction methods do not adopt a basket hanging construction mode in the prestressed concrete subsection construction process, so that the effect of prestressed concrete subsection construction is reduced.
Disclosure of Invention
The invention aims to solve the problem of reduction of the effect of prestressed concrete segmental construction in the prior art, and provides a bridge construction method based on hanging basket construction.
In order to achieve the purpose, the invention provides the following technical scheme: a bridge construction method based on cradle construction comprises the following steps: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit.
Preferably, the specific steps of measuring and positioning are as follows:
the method comprises the following steps: determining a site to be constructed, performing geological measurement through a surveying instrument according to the construction site, and recording measurement data;
step two: and analyzing the measured data in the step one, and drawing a construction drawing.
Preferably, the concrete steps of digging the foundation pit of the bearing platform are as follows:
step three: according to the drawing in the step two, an excavator is used for digging a foundation pit of the bearing platform, and dug soil is reserved;
step four: pumping water in the foundation pit through a large water pump, measuring the size of the foundation pit through a surveying instrument, comparing the measured data with the drawing data, and detecting whether the foundation pit is qualified or not;
step five: and when the detection in the fourth step is qualified, protecting the foundation pit by arranging a foundation pit support, and when the detection around the step is unqualified, sequentially repeating the third step and the fourth step.
Preferably, the concrete steps of the pile drilling head are as follows:
step six: and D, performing a pile head chiseling procedure on the interior of the foundation pit in a manual mode according to the drawing in the step two.
Preferably, the concrete steps of binding the cushion cap steel bars and installing the cushion cap template are as follows:
step seven: processing and producing the adaptive bearing platform template and the bearing platform steel bar according to the drawing in the step two;
step eight: firstly, installing the bearing platform template, and then binding the bearing platform reinforcing steel bars to the bearing platform template.
Preferably, the concrete steps of the concrete pouring bearing platform and the abutment stubble jointing treatment are as follows:
step nine: concrete pouring working procedures are carried out on the bearing platform template by a hanging basket construction method, and the segmented construction effect of the prestressed concrete is improved until the concrete is contacted with the abutment.
Preferably, the concrete curing and form removal method comprises the following specific steps:
step ten: curing the concrete by adopting a water distribution curing method after the concrete poured in the ninth step reaches 12 hours;
step eleven: spraying a proper amount of water to the surface of the concrete every 6-14 hours by using a high-pressure sprinkler to enable the surface of the concrete to be in a wet state, covering the concrete sprayed with the water by using a straw mat so as to preserve heat and moisture of the concrete until the temperature reaches 20-30 d, and meanwhile, erecting a warning board for warning;
step twelve: and D, dismantling the bearing platform template in the step eleven, and removing residual impurities.
Preferably, the concrete steps of the foundation pit backfilling are as follows:
step thirteen: and (5) transferring the soil reserved in the third step into the foundation pit to finish the backfilling process.
Compared with the prior art, the invention provides a bridge construction method based on cradle construction, which has the following beneficial effects:
1. according to the invention, the construction site and the excavated foundation pit are measured by the surveying instrument, and the bearing platform template and the bearing platform reinforcing steel bars which are adapted to production are processed, so that the accuracy of bridge construction is increased;
2. according to the invention, the concrete pouring process is carried out on the bearing platform template by the hanging basket construction method, so that the segmented construction effect of the prestressed concrete is improved, namely the stability of the bridge is improved;
3. according to the invention, the strength of the concrete is enhanced by a water-sprinkling curing method with the period of 20d-30d and the interval of 6h-14 h.
Detailed Description
The following detailed description will be given with reference to specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention provides a technical scheme that: a bridge construction method based on cradle construction.
In embodiment 1 of the present invention, a construction method includes: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit.
The specific steps of measuring and positioning are as follows:
the method comprises the following steps: determining a site to be constructed, performing geological measurement through a surveying instrument according to the construction site, and recording measurement data;
step two: and analyzing the measured data in the step one, and drawing a construction drawing.
The concrete steps of digging the bearing platform foundation pit are as follows:
step three: according to the drawing in the step two, an excavator is used for digging a foundation pit of the bearing platform, and dug soil is reserved;
step four: pumping water in the foundation pit through a large water pump, measuring the size of the foundation pit through a surveying instrument, comparing the measured data with the drawing data, and detecting whether the foundation pit is qualified or not;
step five: and when the detection in the fourth step is qualified, protecting the foundation pit by arranging a foundation pit support, and when the detection around the step is unqualified, sequentially repeating the third step and the fourth step.
The concrete steps of pile drilling head are as follows:
step six: and D, performing a pile head chiseling procedure on the interior of the foundation pit in a manual mode according to the drawing in the step two.
The concrete steps of binding the reinforcing steel bars of the bearing platform and installing the bearing platform template are as follows:
step seven: processing and producing the adaptive bearing platform template and the bearing platform steel bar according to the drawing in the step two;
step eight: firstly, installing the bearing platform template, and then binding the bearing platform reinforcing steel bars to the bearing platform template.
Concrete steps of the pouring cushion cap concrete and the abutment stubble jointing treatment are as follows:
step nine: concrete pouring working procedures are carried out on the bearing platform template by a hanging basket construction method, and the segmented construction effect of the prestressed concrete is improved until the concrete is contacted with the abutment.
Concrete curing and form removal specifically comprises the following steps:
step ten: curing the concrete by adopting a water distribution curing method after the concrete poured in the ninth step reaches 12 hours;
step eleven: spraying a proper amount of moisture to the surface of the concrete every 6 hours by using a high-pressure sprinkler to enable the surface of the concrete to be in a wet state, covering the concrete sprayed with the moisture by using a straw curtain so as to keep the temperature and moisture of the concrete till 20 days, and meanwhile, erecting a warning board for warning;
step twelve: and D, dismantling the bearing platform template in the step eleven, and removing residual impurities.
The concrete steps of foundation pit backfilling are as follows:
step thirteen: and (5) transferring the soil reserved in the third step into the foundation pit to finish the backfilling process.
In embodiment 2 of the present invention, the construction method includes: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit.
The specific steps of measuring and positioning are as follows:
the method comprises the following steps: determining a site to be constructed, performing geological measurement through a surveying instrument according to the construction site, and recording measurement data;
step two: and analyzing the measured data in the step one, and drawing a construction drawing.
The concrete steps of digging the bearing platform foundation pit are as follows:
step three: according to the drawing in the step two, an excavator is used for digging a foundation pit of the bearing platform, and dug soil is reserved;
step four: pumping water in the foundation pit through a large water pump, measuring the size of the foundation pit through a surveying instrument, comparing the measured data with the drawing data, and detecting whether the foundation pit is qualified or not;
step five: and when the detection in the fourth step is qualified, protecting the foundation pit by arranging a foundation pit support, and when the detection around the step is unqualified, sequentially repeating the third step and the fourth step.
The concrete steps of pile drilling head are as follows:
step six: and D, performing a pile head chiseling procedure on the interior of the foundation pit in a manual mode according to the drawing in the step two.
The concrete steps of binding the reinforcing steel bars of the bearing platform and installing the bearing platform template are as follows:
step seven: processing and producing the adaptive bearing platform template and the bearing platform steel bar according to the drawing in the step two;
step eight: firstly, installing the bearing platform template, and then binding the bearing platform reinforcing steel bars to the bearing platform template.
Concrete steps of the pouring cushion cap concrete and the abutment stubble jointing treatment are as follows:
step nine: concrete pouring working procedures are carried out on the bearing platform template by a hanging basket construction method, and the segmented construction effect of the prestressed concrete is improved until the concrete is contacted with the abutment.
Concrete curing and form removal specifically comprises the following steps:
step ten: curing the concrete by adopting a water distribution curing method after the concrete poured in the ninth step reaches 12 hours;
step eleven: spraying a proper amount of moisture to the surface of the concrete every 6 hours by using a high-pressure sprinkler to enable the surface of the concrete to be in a wet state, covering the concrete sprayed with the moisture by using a straw curtain so as to preserve heat and moisture of the concrete until 15 days, and meanwhile, erecting a warning board for warning;
step twelve: and D, dismantling the bearing platform template in the step eleven, and removing residual impurities.
The concrete steps of foundation pit backfilling are as follows:
step thirteen: and (5) transferring the soil reserved in the third step into the foundation pit to finish the backfilling process.
In embodiment 3 of the present invention, a construction method includes: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit.
The specific steps of measuring and positioning are as follows:
the method comprises the following steps: determining a site to be constructed, performing geological measurement through a surveying instrument according to the construction site, and recording measurement data;
step two: and analyzing the measured data in the step one, and drawing a construction drawing.
The concrete steps of digging the bearing platform foundation pit are as follows:
step three: according to the drawing in the step two, an excavator is used for digging a foundation pit of the bearing platform, and dug soil is reserved;
step four: pumping water in the foundation pit through a large water pump, measuring the size of the foundation pit through a surveying instrument, comparing the measured data with the drawing data, and detecting whether the foundation pit is qualified or not;
step five: and when the detection in the fourth step is qualified, protecting the foundation pit by arranging a foundation pit support, and when the detection around the step is unqualified, sequentially repeating the third step and the fourth step.
The concrete steps of pile drilling head are as follows:
step six: and D, performing a pile head chiseling procedure on the interior of the foundation pit in a manual mode according to the drawing in the step two.
The concrete steps of binding the reinforcing steel bars of the bearing platform and installing the bearing platform template are as follows:
step seven: processing and producing the adaptive bearing platform template and the bearing platform steel bar according to the drawing in the step two;
step eight: firstly, installing the bearing platform template, and then binding the bearing platform reinforcing steel bars to the bearing platform template.
Concrete steps of the pouring cushion cap concrete and the abutment stubble jointing treatment are as follows:
step nine: concrete pouring working procedures are carried out on the bearing platform template by a hanging basket construction method, and the segmented construction effect of the prestressed concrete is improved until the concrete is contacted with the abutment.
Concrete curing and form removal specifically comprises the following steps:
step ten: curing the concrete by adopting a water distribution curing method after the concrete poured in the ninth step reaches 12 hours;
step eleven: spraying a proper amount of moisture to the surface of the concrete every 6 hours by using a high-pressure sprinkler to enable the surface of the concrete to be in a wet state, covering the concrete sprayed with the moisture by using a straw curtain so as to keep the temperature and moisture of the concrete till 30 days, and meanwhile, erecting a warning board for warning;
step twelve: and D, dismantling the bearing platform template in the step eleven, and removing residual impurities.
The concrete steps of foundation pit backfilling are as follows:
step thirteen: and (5) transferring the soil reserved in the third step into the foundation pit to finish the backfilling process.
In embodiment 4 of the present invention, the construction method includes: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit.
The specific steps of measuring and positioning are as follows:
the method comprises the following steps: determining a site to be constructed, performing geological measurement through a surveying instrument according to the construction site, and recording measurement data;
step two: and analyzing the measured data in the step one, and drawing a construction drawing.
The concrete steps of digging the bearing platform foundation pit are as follows:
step three: according to the drawing in the step two, an excavator is used for digging a foundation pit of the bearing platform, and dug soil is reserved;
step four: pumping water in the foundation pit through a large water pump, measuring the size of the foundation pit through a surveying instrument, comparing the measured data with the drawing data, and detecting whether the foundation pit is qualified or not;
step five: and when the detection in the fourth step is qualified, protecting the foundation pit by arranging a foundation pit support, and when the detection around the step is unqualified, sequentially repeating the third step and the fourth step.
The concrete steps of pile drilling head are as follows:
step six: and D, performing a pile head chiseling procedure on the interior of the foundation pit in a manual mode according to the drawing in the step two.
The concrete steps of binding the reinforcing steel bars of the bearing platform and installing the bearing platform template are as follows:
step seven: processing and producing the adaptive bearing platform template and the bearing platform steel bar according to the drawing in the step two;
step eight: firstly, installing the bearing platform template, and then binding the bearing platform reinforcing steel bars to the bearing platform template.
Concrete steps of the pouring cushion cap concrete and the abutment stubble jointing treatment are as follows:
step nine: concrete pouring working procedures are carried out on the bearing platform template by a hanging basket construction method, and the segmented construction effect of the prestressed concrete is improved until the concrete is contacted with the abutment.
Concrete curing and form removal specifically comprises the following steps:
step ten: curing the concrete by adopting a water distribution curing method after the concrete poured in the ninth step reaches 12 hours;
step eleven: spraying a proper amount of moisture to the surface of the concrete every 14 hours by using a high-pressure sprinkler to enable the surface of the concrete to be in a wet state, covering the concrete sprayed with the moisture by using a straw curtain so as to keep the temperature and moisture of the concrete till 20 days, and meanwhile, erecting a warning board for warning;
step twelve: and D, dismantling the bearing platform template in the step eleven, and removing residual impurities.
The concrete steps of foundation pit backfilling are as follows:
step thirteen: and (5) transferring the soil reserved in the third step into the foundation pit to finish the backfilling process.
In embodiment 5 of the present invention, the construction method includes: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit.
The specific steps of measuring and positioning are as follows:
the method comprises the following steps: determining a site to be constructed, performing geological measurement through a surveying instrument according to the construction site, and recording measurement data;
step two: and analyzing the measured data in the step one, and drawing a construction drawing.
The concrete steps of digging the bearing platform foundation pit are as follows:
step three: according to the drawing in the step two, an excavator is used for digging a foundation pit of the bearing platform, and dug soil is reserved;
step four: pumping water in the foundation pit through a large water pump, measuring the size of the foundation pit through a surveying instrument, comparing the measured data with the drawing data, and detecting whether the foundation pit is qualified or not;
step five: and when the detection in the fourth step is qualified, protecting the foundation pit by arranging a foundation pit support, and when the detection around the step is unqualified, sequentially repeating the third step and the fourth step.
The concrete steps of pile drilling head are as follows:
step six: and D, performing a pile head chiseling procedure on the interior of the foundation pit in a manual mode according to the drawing in the step two.
The concrete steps of binding the reinforcing steel bars of the bearing platform and installing the bearing platform template are as follows:
step seven: processing and producing the adaptive bearing platform template and the bearing platform steel bar according to the drawing in the step two;
step eight: firstly, installing the bearing platform template, and then binding the bearing platform reinforcing steel bars to the bearing platform template.
Concrete steps of the pouring cushion cap concrete and the abutment stubble jointing treatment are as follows:
step nine: concrete pouring working procedures are carried out on the bearing platform template by a hanging basket construction method, and the segmented construction effect of the prestressed concrete is improved until the concrete is contacted with the abutment.
Concrete curing and form removal specifically comprises the following steps:
step ten: curing the concrete by adopting a water distribution curing method after the concrete poured in the ninth step reaches 12 hours;
step eleven: spraying a proper amount of moisture to the surface of the concrete every 14 hours by using a high-pressure sprinkler to enable the surface of the concrete to be in a wet state, covering the concrete sprayed with the moisture by using a straw curtain so as to keep the temperature and moisture of the concrete till 25 days, and meanwhile, erecting a warning board for warning;
step twelve: and D, dismantling the bearing platform template in the step eleven, and removing residual impurities.
The concrete steps of foundation pit backfilling are as follows:
step thirteen: and (5) transferring the soil reserved in the third step into the foundation pit to finish the backfilling process.
In embodiment 6 of the present invention, a construction method includes: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit.
The specific steps of measuring and positioning are as follows:
the method comprises the following steps: determining a site to be constructed, performing geological measurement through a surveying instrument according to the construction site, and recording measurement data;
step two: and analyzing the measured data in the step one, and drawing a construction drawing.
The concrete steps of digging the bearing platform foundation pit are as follows:
step three: according to the drawing in the step two, an excavator is used for digging a foundation pit of the bearing platform, and dug soil is reserved;
step four: pumping water in the foundation pit through a large water pump, measuring the size of the foundation pit through a surveying instrument, comparing the measured data with the drawing data, and detecting whether the foundation pit is qualified or not;
step five: and when the detection in the fourth step is qualified, protecting the foundation pit by arranging a foundation pit support, and when the detection around the step is unqualified, sequentially repeating the third step and the fourth step.
The concrete steps of pile drilling head are as follows:
step six: and D, performing a pile head chiseling procedure on the interior of the foundation pit in a manual mode according to the drawing in the step two.
The concrete steps of binding the reinforcing steel bars of the bearing platform and installing the bearing platform template are as follows:
step seven: processing and producing the adaptive bearing platform template and the bearing platform steel bar according to the drawing in the step two;
step eight: firstly, installing the bearing platform template, and then binding the bearing platform reinforcing steel bars to the bearing platform template.
Concrete steps of the pouring cushion cap concrete and the abutment stubble jointing treatment are as follows:
step nine: concrete pouring working procedures are carried out on the bearing platform template by a hanging basket construction method, and the segmented construction effect of the prestressed concrete is improved until the concrete is contacted with the abutment.
Concrete curing and form removal specifically comprises the following steps:
step ten: curing the concrete by adopting a water distribution curing method after the concrete poured in the ninth step reaches 12 hours;
step eleven: spraying a proper amount of moisture to the surface of the concrete every 14 hours by using a high-pressure sprinkler to enable the surface of the concrete to be in a wet state, covering the concrete sprayed with the moisture by using a straw curtain so as to keep the temperature and moisture of the concrete till 30 days, and meanwhile, erecting a warning board for warning;
step twelve: and D, dismantling the bearing platform template in the step eleven, and removing residual impurities.
The concrete steps of foundation pit backfilling are as follows:
step thirteen: and (5) transferring the soil reserved in the third step into the foundation pit to finish the backfilling process.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (8)
1. A bridge construction method based on cradle construction is characterized in that: the construction method comprises the following steps: measuring and positioning, excavating a foundation pit of a bearing platform, chiseling a pile head, binding reinforcing steel bars of the bearing platform and installing a template of the bearing platform, pouring concrete of the bearing platform and connecting stubbles of the abutment, curing and removing the template of the concrete and backfilling the foundation pit.
2. The bridge construction method based on hanging basket construction of claim 1, wherein the specific steps of measuring and positioning are as follows:
the method comprises the following steps: determining a site to be constructed, performing geological measurement through a surveying instrument according to the construction site, and recording measurement data;
step two: and analyzing the measured data in the step one, and drawing a construction drawing.
3. The bridge construction method based on cradle construction according to claim 1, wherein the concrete steps of excavating the foundation pit of the bearing platform are as follows:
step three: according to the drawing in the step two, an excavator is used for digging a foundation pit of the bearing platform, and dug soil is reserved;
step four: pumping water in the foundation pit through a large water pump, measuring the size of the foundation pit through a surveying instrument, comparing the measured data with the drawing data, and detecting whether the foundation pit is qualified or not;
step five: and when the detection in the fourth step is qualified, protecting the foundation pit by arranging a foundation pit support, and when the detection around the step is unqualified, sequentially repeating the third step and the fourth step.
4. The bridge construction method based on hanging basket construction of claim 1, wherein the concrete steps of the pile drilling head are as follows:
step six: and D, performing a pile head chiseling procedure on the interior of the foundation pit in a manual mode according to the drawing in the step two.
5. The bridge construction method based on cradle construction of claim 1, wherein the concrete steps of binding the pile cap steel bars and installing the pile cap templates are as follows:
step seven: processing and producing the adaptive bearing platform template and the bearing platform steel bar according to the drawing in the step two;
step eight: firstly, installing the bearing platform template, and then binding the bearing platform reinforcing steel bars to the bearing platform template.
6. The bridge construction method based on hanging basket construction of claim 1, wherein the concrete steps of the pouring of the bearing platform concrete and the abutment joint treatment are as follows:
step nine: concrete pouring working procedures are carried out on the bearing platform template by a hanging basket construction method, and the segmented construction effect of the prestressed concrete is improved until the concrete is contacted with the abutment.
7. The bridge construction method based on hanging basket construction according to claim 1, wherein concrete maintenance and form removal are specifically performed as follows:
step ten: curing the concrete by adopting a water distribution curing method after the concrete poured in the ninth step reaches 12 hours;
step eleven: spraying a proper amount of water to the surface of the concrete every 6-14 hours by using a high-pressure sprinkler to enable the surface of the concrete to be in a wet state, covering the concrete sprayed with the water by using a straw mat so as to preserve heat and moisture of the concrete until the temperature reaches 20-30 d, and meanwhile, erecting a warning board for warning;
step twelve: and D, dismantling the bearing platform template in the step eleven, and removing residual impurities.
8. The bridge construction method based on hanging basket construction of claim 1, wherein the concrete steps of backfilling the foundation pit are as follows:
step thirteen: and (5) transferring the soil reserved in the third step into the foundation pit to finish the backfilling process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010357536.4A CN111764281A (en) | 2020-04-29 | 2020-04-29 | Bridge construction method based on cradle construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010357536.4A CN111764281A (en) | 2020-04-29 | 2020-04-29 | Bridge construction method based on cradle construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111764281A true CN111764281A (en) | 2020-10-13 |
Family
ID=72720953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010357536.4A Pending CN111764281A (en) | 2020-04-29 | 2020-04-29 | Bridge construction method based on cradle construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111764281A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003027418A (en) * | 2001-07-11 | 2003-01-29 | Nippon Concrete Ind Co Ltd | Concrete structure and method for constructing the same |
| CN101130947A (en) * | 2007-07-26 | 2008-02-27 | 中国海洋石油总公司 | Die block cradle supporting method for concrete engineering limited by tide |
| CN110258607A (en) * | 2019-06-28 | 2019-09-20 | 王义东 | A kind of convenient construction method of bridge construction that mass concrete Pile-supported stand foundation is set |
| CN110952586A (en) * | 2019-12-06 | 2020-04-03 | 中铁十八局集团建筑安装工程有限公司 | Construction process for bearing platform below expressway |
-
2020
- 2020-04-29 CN CN202010357536.4A patent/CN111764281A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003027418A (en) * | 2001-07-11 | 2003-01-29 | Nippon Concrete Ind Co Ltd | Concrete structure and method for constructing the same |
| CN101130947A (en) * | 2007-07-26 | 2008-02-27 | 中国海洋石油总公司 | Die block cradle supporting method for concrete engineering limited by tide |
| CN110258607A (en) * | 2019-06-28 | 2019-09-20 | 王义东 | A kind of convenient construction method of bridge construction that mass concrete Pile-supported stand foundation is set |
| CN110952586A (en) * | 2019-12-06 | 2020-04-03 | 中铁十八局集团建筑安装工程有限公司 | Construction process for bearing platform below expressway |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109629455B (en) | Construction method for reconstructing bridge of highway | |
| CN111594229A (en) | Construction method for multi-arch tunnel entrance under shallow-buried water-rich geological condition | |
| CN104074199B (en) | Underwater bearing platform construction method | |
| CN101818645B (en) | Construction method for newly increasing arched open cut tunnel at railway operating line tunnel portal | |
| CN102839680B (en) | The high slope earthwork and support engineering construction method | |
| CN110468833B (en) | Water cast-in-situ bored pile construction device for inland waterway and use method thereof | |
| CN110631560B (en) | Underground excavation interval monitoring and measuring method for subway station in dense building area | |
| CN111576481A (en) | Tunnel portal open cut tunnel reinforcing construction method | |
| CN110821513B (en) | Construction method for performing advanced grouting and supporting on tunnel local collapse | |
| CN106917409A (en) | A kind of rock lid weight consolidation grouting construction method | |
| CN110485429A (en) | A kind of prestressing force fashioned iron assembled combination inner support construction method | |
| CN106087997A (en) | A kind of high latitude, high and cold Permafrost Area drilled pile construction engineering method | |
| CN110952586A (en) | Construction process for bearing platform below expressway | |
| CN109778869A (en) | Foundation ditch construction method | |
| CN103015431A (en) | Foundation pit supporting method for manual dig-hole cement-soil steel pile | |
| CN112609690A (en) | Construction method of rotary drilling cast-in-place pile in sea-filling geological complex area | |
| CN111764281A (en) | Bridge construction method based on cradle construction | |
| CN112177022A (en) | Construction method of prefabricated socket joint type interface pipeline | |
| CN107869147A (en) | Super-length prestressed raft board construction method | |
| CN113174992A (en) | Comprehensive treatment and reinforcement method for collapse of stratum around marine deep-water inclined pile | |
| CN108837518A (en) | The construction method of the soft bridge of recreation ground and amusement facility and soft bridge and amusement facility | |
| CN113266374B (en) | Construction method for anchor section of loess tunnel of high-speed railway | |
| CN107288155B (en) | Rapid manufacturing method of small underground concrete structure | |
| CN209975535U (en) | Supporting-free double-layer arc-shaped drilling and pouring deep foundation pit retaining structure | |
| CN114753356B (en) | Dry drilling method green construction method for large-diameter rock-socketed pile foundation rotary drilling machine of bridge |
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 |
Application publication date: 20201013 |
|
| RJ01 | Rejection of invention patent application after publication |