CN101565940B - Coupling structure of gravity dam and unfavorable geological bank slope and the construction method thereof - Google Patents

Coupling structure of gravity dam and unfavorable geological bank slope and the construction method thereof Download PDF

Info

Publication number
CN101565940B
CN101565940B CN 200910098395 CN200910098395A CN101565940B CN 101565940 B CN101565940 B CN 101565940B CN 200910098395 CN200910098395 CN 200910098395 CN 200910098395 A CN200910098395 A CN 200910098395A CN 101565940 B CN101565940 B CN 101565940B
Authority
CN
China
Prior art keywords
pile
construction
dam
excavation
antislide pile
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.)
Active
Application number
CN 200910098395
Other languages
Chinese (zh)
Other versions
CN101565940A (en
Inventor
涂祝明
叶建群
Original Assignee
Powerchina Huadong Engineering Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Powerchina Huadong Engineering Corp Ltd filed Critical Powerchina Huadong Engineering Corp Ltd
Priority to CN 200910098395 priority Critical patent/CN101565940B/en
Publication of CN101565940A publication Critical patent/CN101565940A/en
Application granted granted Critical
Publication of CN101565940B publication Critical patent/CN101565940B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention relates to a coupling structure of gravity dam and unfavorable geological bank slope and the construction method thereof, aiming at improving the strained condition of unfavorable geological bank slope and ensuring the stability of side slope in the form of active support. The technical scheme for solving the problem refers to a coupling structure of gravity dam and unfavorable geological bank slope and is characterized in that a group of anti-slide piles are evenly arranged at the joint of the gravity dam and unfavorable geological bank slope; the sloping surfaces among the adjacent anti-slide piles are provided with inter-pile plates; the upper part of the pile body of the anti-slide pile is provided with a prestress anchor rope; and a water-seal groove is arranged between the dam body and the anti-slide pile connected with the dam body. The invention is mainly used in hydraulic and hydro-power engineering.

Description

The draw bail of a kind of gravity dam and unfavorable geology bank slope and job practices thereof
Technical field
The present invention relates to draw bail and the job practices thereof of a kind of gravity dam and unfavorable geology bank slope.Be mainly used in the Hydraulic and Hydro-Power Engineering.
Background technology
Gravity dam is one of important dam type that extensively adopts in the Hydraulic and Hydro-Power Engineering, because western complicated topographic and geologic condition and the operating characteristic of gravity dam itself, gravity dam high slope and extra-high often occur with connecting of two sides bank slope, when the bank slope geological conditions is unfavorable, often cause the stability of slope problem.
At present, some engineerings are by engineering measures such as employing anchor arm-ties, solved the articulation issues of indivedual gravity dams and the bad bank slope of geology, but because the restriction of this structure construction program and design feature, there are the shortcomings such as slope retaining is untimely, construction safety outstanding problem in this passive retaining structure.
Summary of the invention
The technical problem to be solved in the present invention is: draw bail and the job practices thereof of a kind of gravity dam and unfavorable geology bank slope are provided for the problem of above-mentioned existence, with the form of active support, improve the stress of unfavorable geology bank slope, guarantee the stability of side slope.
The technical solution adopted in the present invention is: the draw bail of a kind of gravity dam and unfavorable geology bank slope, it is characterized in that: in the junction of gravity dam and unfavorable geology bank slope one group of antislide pile is set evenly, on domatic between adjacent each antislide pile plate between stake is set, described antislide pile pile body top arranges prestress anchorage cable, between dam body and the antislide pile that is attached thereto water stopping trough is set.
Described antislide pile is divided into an order antislide pile and two order antislide piles, an order antislide pile and two order antislide pile Heterogeneous Permutations.
The plate top arranges the contact beam between described stake.
The job practices of a kind of gravity dam and unfavorable geology bank slope draw bail is characterized in that:
Antislide pile stake well is excavated, built to a, minute order, and a stake well excavation construction needs the supporting while excavating, and namely builds pile concrete after excavation is finished, and reserves water stopping trough at the antislide pile that is connected with dam body;
B, until the antislide pile concrete pouring construction finish, after concrete strength of pile reaches requirement, beginning stage excavation dam foundation foundation ditch, plate between the stake of excavation one deck construction one deck;
C, anchorage cable design elevation to be excavated to stop excavation, the construction anchor cable, and anchor cable prestressing force lock value needs and antislide pile later stage displacement field match;
D, after anchor cable construction is finished, continue the construction according to step b, plate between stage excavation dam foundation foundation ditch, construction stake is until be excavated to design altitude;
E, cleaning foundation plane are built dam concrete, and bury sealing underground in pile body are reserved water stopping trough.
Described minute order excavation built as at first excavating and built an order antislide pile, and after its concrete strength reached requirement, excavation was built two order antislide piles between each order antislide pile.
The invention has the beneficial effects as follows: the present invention is by calculating the excavation slope residual pushing force, plate and anchor cable between reasonable Arrangement antislide pile, stake, form anchor cable reinforced concrete pile board wall, realize the positive connection of dam and bank slope, effectively reduce simultaneously unfavorable geological condition bank slope engineering slope height, improved the stress of unfavorable geology bank slope, improved working security, guarantee the engineering slope safe operation, saved construction investment.
Description of drawings
Fig. 1 is front view of the present invention.
Fig. 2 is the lateral view of Fig. 1.
The specific embodiment
As shown in Figure 1 and Figure 2, the present embodiment evenly arranges one group of antislide pile in the junction of gravity dam and unfavorable geology bank slope, remain basically stable with dam crest road surface 6 in the stake top, and the pile body diameter that is connected with dam outline line 9 is large than other pile body diameters, for guaranteeing bank stability, each pile body all need pass completely through severely-weathered fracture area 8 and go deep into the weak-weathered rock body and be no less than 1/4 pile body length.For guaranteeing stake well excavation safety, adopt the steel concrete supporting around the stake well, on domatic between adjacent each antislide pile plate 3 between stake is set, prevent domatic local buckling between stake, described antislide pile pile body top arranges prestress anchorage cable 4, to reduce pile body deformation and to improve pile body and the stress condition of side slope, for preventing antislide pile and dam body binding site generation seepage, between dam body and the antislide pile that is attached thereto sealing 10 is set, plate 3 tops arrange contact beam 5 between described stake.
The job practices of the present embodiment is:
A, in order to prevent from the work progress occuring the landslide phenomenon, adopt a minute order excavation in the work progress, build antislide pile stake well, in this example, at first excavation is built an order antislide pile 1, after its concrete strength reached requirement, excavation was built two order antislide piles 2 between each order antislide pile 1, and stake well excavation construction needs the supporting while excavating, namely build pile concrete after excavation is finished, and reserve water stopping trough at the antislide pile that is connected with dam body;
B, finish, after concrete strength of pile reaches requirement, press excavation line 7 beginning stage excavation dam foundation foundation ditches, plate 3 between the stake of excavation one deck construction one deck according to the bank slope geological conditions until the antislide pile concrete pouring construction;
C, anchorage cable design elevation to be excavated to stop excavation, the construction anchor cable, and anchor cable prestressing force lock value needs and antislide pile later stage displacement field match;
D, after anchor cable construction is finished, continue the construction according to step b, plate between stage excavation dam foundation foundation ditch, construction stake is until be excavated to design altitude;
E, cleaning foundation plane are built dam concrete, and are buried sealing 10 underground at the pile body preformed groove, in case Seepage occurs.

Claims (3)

1. the job practices of a gravity dam and unfavorable geology bank slope draw bail is characterized in that:
In the junction of gravity dam and unfavorable geology bank slope one group of antislide pile is set evenly, on domatic between adjacent each antislide pile plate between stake (3) is set, described antislide pile pile body top arranges prestress anchorage cable (4), between dam body and the antislide pile that is attached thereto water stopping trough is set, construction sequence is as follows
Antislide pile stake well is excavated, built to a, minute order, and a stake well excavation construction needs the supporting while excavating, and namely builds pile concrete after excavation is finished, and reserves water stopping trough at the antislide pile that is connected with dam body;
B, until the antislide pile concrete pouring construction finish, after concrete strength of pile reaches requirement, beginning stage excavation dam foundation foundation ditch, plate (3) between the stake of excavation one deck construction one deck;
C, anchorage cable design elevation to be excavated to stop excavation, construction anchor cable (4), and anchor cable prestressing force lock value needs and antislide pile later stage displacement field match;
D, after anchor cable construction is finished, continue the construction according to step b, plate between stage excavation dam foundation foundation ditch, construction stake is until be excavated to design altitude;
E, cleaning foundation plane are built dam concrete, and bury sealing (10) underground in being reserved water stopping trough.
2. job practices according to claim 1, it is characterized in that: described minute order excavation built as at first excavating and built an order antislide pile (1), after its concrete strength reaches requirement, excavation is built two order antislide piles (2), an order antislide pile and two order antislide pile Heterogeneous Permutations between each order antislide pile (1).
3. job practices according to claim 1 is characterized in that: contact beam (5) is set above the plate (3) between described stake.
CN 200910098395 2009-05-12 2009-05-12 Coupling structure of gravity dam and unfavorable geological bank slope and the construction method thereof Active CN101565940B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200910098395 CN101565940B (en) 2009-05-12 2009-05-12 Coupling structure of gravity dam and unfavorable geological bank slope and the construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200910098395 CN101565940B (en) 2009-05-12 2009-05-12 Coupling structure of gravity dam and unfavorable geological bank slope and the construction method thereof

Publications (2)

Publication Number Publication Date
CN101565940A CN101565940A (en) 2009-10-28
CN101565940B true CN101565940B (en) 2013-03-06

Family

ID=41282288

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200910098395 Active CN101565940B (en) 2009-05-12 2009-05-12 Coupling structure of gravity dam and unfavorable geological bank slope and the construction method thereof

Country Status (1)

Country Link
CN (1) CN101565940B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102268876A (en) * 2011-06-20 2011-12-07 江苏省交通科学研究院股份有限公司 Landslide prevention and treatment engineering system
CN102864761A (en) * 2012-10-11 2013-01-09 黄河勘测规划设计有限公司 Connection method of water inlet, gravity dam and deep covering layer bank slope
CN105089012A (en) * 2015-07-13 2015-11-25 中国电建集团贵阳勘测设计研究院有限公司 Method for building gravity dam on deep and thick cover layer and spandrel concrete gravity dam structure
CN107574813A (en) * 2017-08-09 2018-01-12 贵州正业工程技术投资有限公司 The device and construction method of Soil-rock combined ground are passed through in a kind of karst area
CN107679355B (en) * 2017-11-17 2020-12-08 中国科学院、水利部成都山地灾害与环境研究所 Water-intercepting flow-guiding type anchor pile plate wall and design method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002167781A (en) * 2000-11-28 2002-06-11 Toshihiro Fukumasa Reinforcing structure of concrete structure
CN201406678Y (en) * 2009-05-12 2010-02-17 中国水电顾问集团华东勘测设计研究院 Linkage structure of gravity dam and unfavorable geological bank slope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002167781A (en) * 2000-11-28 2002-06-11 Toshihiro Fukumasa Reinforcing structure of concrete structure
CN201406678Y (en) * 2009-05-12 2010-02-17 中国水电顾问集团华东勘测设计研究院 Linkage structure of gravity dam and unfavorable geological bank slope

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
曹志民等人.锚索抗滑桩在张家坝滑坡治理工程中的施工技术.湖北省三峡库区地质灾害防治工程论文集.2005,417-425. *

Also Published As

Publication number Publication date
CN101565940A (en) 2009-10-28

Similar Documents

Publication Publication Date Title
CN102094425B (en) Foundation pit construction method adopting shallow buried depth Larsen steel plate pile as protective cofferdam
CN101565940B (en) Coupling structure of gravity dam and unfavorable geological bank slope and the construction method thereof
CN103321241B (en) Deep water open type combination foundation harbour and construction method thereof
CN103015456B (en) Rapid pit-in-pit form erecting method in foundation slab of buried concrete structure
CN101644041B (en) Face rockfill dam toe board structure constructed on completely weathered bed rock and construction method thereof
CN102434717B (en) Construction method of joist steel pipe-jacking work pit
CN105697021A (en) Prefabricated tunnel allowing tunnel shield to penetrate shallow covering riverbed and construction method
CN103422510B (en) Steel pipe frame type cofferdam structure and construction method
CN102817621B (en) Comprehensive construction method applicable to controlling arch basement sedimentation for tunnel in unfavorable geological conditions
CN201406678Y (en) Linkage structure of gravity dam and unfavorable geological bank slope
CN202787334U (en) Sealing structure of deep well casing used during tunnel construction
CN204753262U (en) A fender structure on high embankment of existing railway
CN201502056U (en) Bare rock drilling platform for steep slope of deep reservoir area
CN207633352U (en) A kind of slope reinforcement structure for rapid rescue construction
CN103114595A (en) Support method and device of support pile preformed core-soil double-buttress inclined inner-strut foundation ditch
CN104895093A (en) Semi-prefabricated underground continuous wall and construction method thereof
CN104389609A (en) No-blasting mechanical digging method
CN103966981B (en) Force transferring structure and the construction method thereof of arch dam is built on weathering rock mass
CN202000306U (en) All-straight-pile wharf structure
CN201502065U (en) Anchor rod joint excavation compound basis
CN110565666A (en) Construction method of flat combined sheet pile ground connecting wall type water retaining cofferdam
CN109577322A (en) A kind of constructing device for inside soil body existing pile foundation pile extension
CN201411707Y (en) Tower cane foundation
CN204940310U (en) A kind of combination retaining structure
CN204435321U (en) A kind of steam power station water intaking open channel

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 22

Patentee after: Co., Ltd of China Hydropower Advisory Group East China Survey Design Academe

Address before: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 22

Patentee before: East China Hydroelectric Investigation & Design Institute, China Hydropower Consulting Group

Address after: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 22

Patentee after: Co., Ltd of East China Investigation and Design Institute of electricity Jian group of China

Address before: 310014 Hangzhou city in the lower reaches of the city of Zhejiang Wang Road, No. 22

Patentee before: Co., Ltd of China Hydropower Advisory Group East China Survey Design Academe

C56 Change in the name or address of the patentee

Owner name: CHINESE HYDROPOWER CONSULTING GROUP EAST CHINA INV

Free format text: FORMER NAME: EAST CHINA SURVEY AND DESIGN INST., CHINA HYDROPOWER CONSULTING GROUP

Owner name: CHINA POWER GROUP EAST CHINA INVESTIGATION AND DES

Free format text: FORMER NAME: CHINESE HYDROPOWER CONSULTING GROUP EAST CHINA INVESTIGATION AND DESIGN INSTITUTE CO.,LTD.