CN103711143B - The jointing of a kind of transportation by driving formula diversion box culvert ground stabilization and construction method - Google Patents
The jointing of a kind of transportation by driving formula diversion box culvert ground stabilization and construction method Download PDFInfo
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- CN103711143B CN103711143B CN201310622693.3A CN201310622693A CN103711143B CN 103711143 B CN103711143 B CN 103711143B CN 201310622693 A CN201310622693 A CN 201310622693A CN 103711143 B CN103711143 B CN 103711143B
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Abstract
The jointing of a kind of transportation by driving formula diversion box culvert ground stabilization and construction method, the joint of described ground stabilization comprises the diversion box culvert joint ground that an employing two piles set into rock carry out consolidation process, a coupling beam is provided with between two described piles set into rock, two of coupling beam is provided with pile cover, and described pile cover is embedded in the pile crown of piles set into rock; Two sections of each diversion box culverts being at one end provided with P type rubber fastening band, are spliced to form joints at coupling beam place mutually; Described construction method comprises: a: adopt two piles set into rock to carry out consolidation process to diversion box culvert joint ground; B: be provided with the coupling beam of pile cover at the land-based area two that completes; C: the diversion box culvert that one end is provided with P type rubber fastening band makes at land-based area, puts in place diversion box culvert transportation by driving and sinking and another section of box culvert splice at coupling beam place; D: establish mold-bagged concrete in the both sides, joint of diversion box culvert and end face; E: diversion box culvert foundation region throwing protection block stone washes away problem to solve.
Description
Technical field
What the present invention relates to is a kind of jointing in the ground stabilization of complex environment coastal power plant transportation by driving formula diversion box culvert and construction method, belongs to power generation plant technology field.
Background technology
Current Deposits in Eastern Coastal China economic development is rapid, and power demand is large, and in order to meet the requirement of this area economic development and the raising of people's living standard, country often need drop into huge fund every year for building large-size thermal power plant.Large-size thermal power plant addressing should take into full account convenience and the economy of Coal Transport, taking and discharging, also should consider the factor such as Economization on land and environmental protection simultaneously.Therefore numerous large-size thermal power plant is generally arranged in seashore.Seashore power plant generally adopts once-though cooling mode, by arranging water-fetching head and diversion box culvert form is fetched water from deep trouth.Described diversion box culvert sectional making, transportation by driving is to in-site installation.The jointing method that diversion box culvert conventional at present connects has two kinds, and one is spigot-and-socket joint, and one is overlapping joint.The former fabrication error is little, and installation difficulty is large, and high to foundation requirement, installation operational effect is good; Diversion box culvert sinking puts in place by the latter, and jail is leaned in alignment, simple installation, but construction error is large, easily forms tube coupling and misplaces or off normal, cause and leak, and impact water intaking effect even engineering lost efficacy.In the severe and situation of geological condition difference of construction environment, the first jointing method difficulty of construction is excessive, and construction costs is high.The second joint is due to bad environments, and construction error can be very large, is difficult to ensure operational effect.
For certain power plant in Zhejiang diversion box culvert, residing waters is marine outfall, Qiantang River briny environment, complex geologic conditions (the weak mud in top, rock stratum, the bottom end face gradient is precipitous), it is very large that construction is subject to Qiantang River tidal bore function influence, needs the factor of consideration very complicated.Design suitable diversion box culvert joint form and form of construction work, be no matter to meet to engineering that design water intaking requires, safety of structure requirement, or can construction be implemented smoothly, construction quality and can construction speed be guaranteed, can construction costs obtain controlling being all very important.In the urgent need to seeking suitable diversion box culvert ground stabilization and joint and construction method under this complex environment.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and safe and reliable under a kind of complex environment is provided, that facilitate the ground stabilization of feasible coastal power plant transportation by driving formula diversion box culvert joint and construction method of installation, to complete the installation of transportation by driving formula diversion box culvert, meet engineering construction schedule requirement and service requirement, reduce construction costs.
The present invention has come by following technical solution: the jointing of described coastal power plant transportation by driving formula diversion box culvert ground stabilization, it comprises the diversion box culvert joint ground that an employing two piles set into rock carry out consolidation process, a coupling beam is provided with between two described piles set into rock, two of coupling beam is provided with pile cover, and described pile cover is embedded in the pile crown of piles set into rock; Two sections are respectively at one end provided with P type rubber water-proof diversion box culvert, are mutually spliced to form joints at coupling beam place.
The both sides, joint of described diversion box culvert and end face are provided with the mold-bagged concrete for ensureing joint tighness; The foundation region of described diversion box culvert has protection block stone by digging up and filling in.
The jointing construction method of coastal power plant transportation by driving formula diversion box culvert of the present invention ground stabilization, the method takes following steps:
A: according to diversion box culvert actual conditions, adopts two piles set into rock to carry out consolidation process to diversion box culvert joint ground.Excavate as required after basement process completes;
B: to complete the coupling beam be installed between two piles set into rock at land-based area, two of described coupling beam is provided with pile cover, and transportation by driving puts in place to on-the-spot sinking, makes the pile crown of two piles set into rock be embedded in the pile cover of coupling beam;
C: diversion box culvert makes at land-based area, described diversion box culvert one end is provided with P type rubber fastening band, and described diversion box culvert transportation by driving puts in place and sinking and another section of box culvert splice at coupling beam place, forms joint;
D: establish mold-bagged concrete to ensure the sealing of joint in the both sides, joint of diversion box culvert and end face;
E: diversion box culvert foundation region fill block stone throwing washes away problem to solve.
Compared with prior art, advantage of the present invention is: difficulty of construction is little, and the construction period is short, and engineering operation is reliable, and cost is reasonable.Severe and under the complex environment of geological condition difference, take this technology in construction environment, solve a difficult problem for the ground stabilization of diversion box culvert and joint process.According to this programme, diversion box culvert and coupling beam land-based area make, floating and sinking, decrease Underwater Engineering amount, and diversion box culvert and coupling beam sinking do not need too high precision, reduce difficulty of construction, ensure that the sinking that can complete diversion box culvert and coupling beam in the presence of a harsh environment smoothly.Mold-bagged concrete underwater grouting both ensure that and the sealing that diversion box culvert connects had made easy construction feasible again.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Detailed description of the invention
The present invention will the present invention will be described in detail by reference to the accompanying drawings: as shown in Figure 1, 2, the jointing of coastal power plant transportation by driving formula diversion box culvert of the present invention ground stabilization, it comprises the diversion box culvert joint ground 2 that employing two piles set into rock 1 carry out consolidation process; The cushion cap coupling beam 3 of described castinplace pile 1 is connected with pile cover 8; Two sections of diversion box culverts 4 being respectively at one end provided with P type rubber fastening band are spliced to form joints in cushion cap coupling beam 3; The both sides, joint of described diversion box culvert and end face are provided with the mold-bagged concrete 5 for ensureing joint tighness; The foundation region throwing of described diversion box culvert has protection block stone 6.
The jointing construction method of coastal power plant transportation by driving formula diversion box culvert of the present invention ground stabilization, the method takes following steps:
A: according to diversion box culvert actual conditions, adopts two piles set into rock to carry out consolidation process to diversion box culvert joint ground.Excavate as required after basement process completes;
B: to complete the coupling beam be installed between two piles set into rock at land-based area, two of described coupling beam is provided with pile cover, and transportation by driving puts in place to on-the-spot sinking, makes the pile crown of two piles set into rock be embedded in the pile cover of coupling beam;
C: diversion box culvert makes at land-based area, diversion box culvert one end is provided with P type rubber fastening band 7, and diversion box culvert transportation by driving puts in place and sinking and another section of box culvert splice at coupling beam place, forms joint;
D: establish mold-bagged concrete to ensure the sealing of joint in the both sides, joint of diversion box culvert and end face;
E: diversion box culvert foundation region fill block stone throwing washes away problem to solve.
Embodiment:
Certain power plant in Zhejiang the third stage of the project is using Seawater of Hangzhou Bay as circulating cooling water source.Hangzhou Wan is strong tidal sea gulf world-famous.At the incoming tide, tidal wave imports into from off-lying sea, has two bursts of trends to the east of the mouth of Kingsoft, namely the southeast rise and northeast rise, five dish to the north of cross, directly become along Hangzhou Wan north side Ganpu.During ebb tide, marine site, the Hangzhou Wan southeast first falls, and impels Hangzhou Wan fluctuation tide main shaft to be consistent.General flood strength is large, and half tide mean flow rate is 1.16m/s, and actual measurement Peak Flow Rate reaches 2.45m/s.The point bar in six li of gulfs has suitable, counterclockwise a backflow to occur in flood tide intermediary and later stages and ebb tide later stage respectively.Top, stratum, diversion box culvert position is mud, and bottom is rock stratum, and face, the rock stratum gradient is precipitous, and the gradient is greater than 60 °.It is very large that diversion box culvert construct is subject to Qiantang River tidal bore function influence, and foundation condition is complicated.Completing smoothly for ensureing that diversion box culvert ground stabilization and joint process are constructed, taking detailed description of the invention as follows:
The first step: rational piles set into rock is set according to diversion box culvert actual conditions and carries out ground stabilization.Excavate as required after basement process completes.
Second step: piles set into rock coupling beam makes at land-based area, pile cover is established at two of coupling beam, and transportation by driving puts in place to on-the-spot sinking, and pile crown is embedded in the pile cover of coupling beam.
3rd step: diversion box culvert makes at land-based area, P type rubber fastening band is established in diversion box culvert one end, diversion box culvert transportation by driving put in place and sinking and another save box culvert and splice at coupling beam place.
4th step: establish mold-bagged concrete to ensure the sealing of joint in both sides, diversion box culvert joint and end face.
5th step: diversion box culvert foundation region fill block stone throwing washes away problem to solve.
According to this programme, the installation of diversion box culvert can be completed in the presence of a harsh environment smoothly, meet engineering construction schedule requirement and service requirement, reduce construction costs.
Claims (2)
1. the jointing of transportation by driving formula diversion box culvert ground stabilization, it comprises the diversion box culvert joint ground that an employing two piles set into rock carry out consolidation process, a coupling beam is provided with between two described piles set into rock, two of coupling beam is provided with pile cover, and described pile cover is embedded in the pile crown of piles set into rock; Two sections of each diversion box culverts being at one end provided with P type rubber fastening band, are spliced to form joints at coupling beam place mutually;
The both sides, joint of described diversion box culvert and end face are provided with the mold-bagged concrete for ensureing joint tighness; The foundation region throwing of described diversion box culvert has protection block stone.
2., for a construction method for the jointing of transportation by driving formula diversion box culvert ground stabilization described in claim 1, the method takes following steps:
A: according to diversion box culvert actual conditions, adopts two piles set into rock to carry out consolidation process to diversion box culvert joint ground; Excavate as required after basement process completes;
B: to complete the coupling beam be installed between two piles set into rock at land-based area, two of described coupling beam is provided with pile cover, and transportation by driving puts in place to on-the-spot sinking, makes the pile crown of two piles set into rock be embedded in the pile cover of coupling beam;
C: diversion box culvert makes at land-based area, diversion box culvert one end is provided with P type rubber fastening band, and diversion box culvert transportation by driving puts in place and sinking and another section of box culvert splice at coupling beam place, forms joint;
D: establish mold-bagged concrete to ensure the sealing of joint in the both sides, joint of diversion box culvert and end face;
E: diversion box culvert foundation region throwing protection block stone washes away problem to solve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622693.3A CN103711143B (en) | 2013-11-30 | 2013-11-30 | The jointing of a kind of transportation by driving formula diversion box culvert ground stabilization and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310622693.3A CN103711143B (en) | 2013-11-30 | 2013-11-30 | The jointing of a kind of transportation by driving formula diversion box culvert ground stabilization and construction method |
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| Publication Number | Publication Date |
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| CN103711143A CN103711143A (en) | 2014-04-09 |
| CN103711143B true CN103711143B (en) | 2016-01-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106088142B (en) * | 2016-07-22 | 2018-07-06 | 福建省建筑设计研究院有限公司 | A kind of prefabricated assembled pipeline foundation and its assembly method |
| CN109667288A (en) * | 2019-02-14 | 2019-04-23 | 国电蓬莱发电有限公司 | To the restorative procedure and structure of the water intaking box culvert seam in deep water under river channels |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086634A (en) * | 2011-01-07 | 2011-06-08 | 广东省电力设计研究院 | Marine underwater assembled water intake and construction method thereof |
| JP2011220108A (en) * | 2011-07-06 | 2011-11-04 | Railway Technical Research Institute | Embankment construction method on soft ground and embankment structure thereof |
| GB2497274A (en) * | 2011-11-24 | 2013-06-12 | Aspin Foundations Ltd | Vehicle station platform system |
| CN203296057U (en) * | 2013-05-17 | 2013-11-20 | 广州市市政集团有限公司 | Pile-cap-beam composite foundation |
| CN203684270U (en) * | 2013-11-30 | 2014-07-02 | 浙江省电力设计院 | Foundation reinforcing and connecting connector of floating type water diversion box culvert |
-
2013
- 2013-11-30 CN CN201310622693.3A patent/CN103711143B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086634A (en) * | 2011-01-07 | 2011-06-08 | 广东省电力设计研究院 | Marine underwater assembled water intake and construction method thereof |
| JP2011220108A (en) * | 2011-07-06 | 2011-11-04 | Railway Technical Research Institute | Embankment construction method on soft ground and embankment structure thereof |
| GB2497274A (en) * | 2011-11-24 | 2013-06-12 | Aspin Foundations Ltd | Vehicle station platform system |
| CN203296057U (en) * | 2013-05-17 | 2013-11-20 | 广州市市政集团有限公司 | Pile-cap-beam composite foundation |
| CN203684270U (en) * | 2013-11-30 | 2014-07-02 | 浙江省电力设计院 | Foundation reinforcing and connecting connector of floating type water diversion box culvert |
Non-Patent Citations (1)
| Title |
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| 气囊在电厂取排水工程中的应用;马兆荣;《广东电力》;20080630;第21卷(第6期);第68-70页 * |
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Address after: No. 68 GUCUI Road, Hangzhou, Zhejiang Province Patentee after: Energy source in China construction group Zhejiang Province Power Design Institute Co., Ltd Address before: No. 68 GUCUI Road, Hangzhou, Zhejiang Province Patentee before: Zhejiang Electric Power Design Institute |
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