CN203200775U

CN203200775U - Combined raft-shaped foundation of outdoor framework and geographic information system (GIS) device in transformer substation

Info

Publication number: CN203200775U
Application number: CN 201220738015
Authority: CN
Inventors: 韩文涛; 冯仁祥; 葛中桂; 黄达余; 安春秀; 钱锋; 周志超
Original assignee: Zhejiang Electric Power Design Institute
Current assignee: Zhejiang Electric Power Design Institute
Priority date: 2012-12-28
Filing date: 2012-12-28
Publication date: 2013-09-18
Anticipated expiration: 2022-12-28

Abstract

Provided is a combined raft-shaped foundation of an outdoor framework and a geographic information system (GIS) device in a transformer substation. Framework foundations and a GIS raft foundation form an integral plate foundation, the tops of the framework foundations are higher than the top of the GIS raft foundation, and embedded bolts of the foundation are connected with A-rod framework columns. The top elevation position of the integral plate foundation is lifted to the -0.3m position, and the GIS raft foundation and two framework foundations are arranged jointly to form the integral plate foundation. The problem that the framework collides with the GIS device foundation is solved, the occupying and foundation volume of the transformer substation is decreased, and the project investment is saved.

Description

The associating raft type basis of outdoor framework and GIS equipment in the transformer station

Technical field

The utility model relates to the associating raft foundation on outdoor framework basis and GIS equipment in a kind of transformer station, belong to the design arrangement form technical field of transformer station.

Background technology

Transformer station's design is after adopting unified general module, the interior floor space of enclosure wall becomes a unalterable quota and must not break through, yet different sizes is taken up an area of on the basic arrangement form of various geological conditions demands and basis, and depositing the most fat natural ground single footing at limited space lining becomes a stubborn problem.Shown in Figure 1, transformer station's outlet structure generally adopts A font bent structure, all two posts of A word bar framework post is established the single footing during natural ground in the past, bears pressure and pulling force respectively, satisfies resistance to compression and resistance to plucking requirement; Then vertical load is big, apparatus arrangement is intensive for GIS equipment, and equipment room does not allow to exist differential settlement, often takes the raft foundation arrangement form; In order to allow the framework basis throw off fully with the GIS basis, need the distance between framework and the GIS equipment is strengthened, cause transformer station's enclosure wall inner area and basis side amount all to increase to some extent.If characteristic value of foundation bearing capacity is 100kPa, place backfill 1.0m is dark in standing, (this method is fit to basis, 110kV place arrangement form to 220kV outlet structure center pillar equally, every data have change) adopt traditional single footing size to need 3.0m (wide) X3.4m(long) X2.5m(is dark), reserving top A word bar framework root opens, the framework center line must guarantee 3731 distance with the big plate base of GIS, guarantee that with the enclosure wall center line 4351 distance could guarantee that each basis do not collide, also to consider the construction operation face simultaneously, need the 9.0m space can guarantee framework basis smooth construction approximately, and universal design is also only reserved the 7.9m space after considering to utilize the equipment gap.In case transformer station's enclosure wall line needs demonstration explanation repeatedly and hands over the review activities authorization after the breakthrough universal design, program is more loaded down with trivial details, easily delays the transformer substation construction duration.If do not change big enclosure wall inside dimension, can't stop the space that framework single footing and GIS raft foundation break away from fully in the narrow and small enclosure wall line, therefore this binomial basis of ingenious reasonable Arrangement be engineering construction difficult point, key of later stage transformer station's power distribution equipment safe and reliable operation especially.

The utility model content

The purpose of this utility model is to overcome the deficiency of above-mentioned existence, a kind of basic arrangement form of optimizing in the power distribution equipment is provided, reduce transformer station and take up an area of the amount with basis side, strengthen resistance to compression, the resistance to plucking ability of framework, reduce embedded depth of foundation, solve the phenomenon that underground is narrow, collide in the basis in the enclosure wall of site, realize saving investment, reduce to take over the land for use, do not break through the associating raft type basis that outdoor framework and GIS equipment in the transformer station of purposes such as unalterable quota are taken up an area of in State Grid Corporation of China's universal design.

The purpose of this utility model is finished by following technical solution, it is framework basis and GIS raft foundation to be formed whole plate base arrange, the top on framework basis slightly exceeds the top of GIS raft foundation, and basic pre-embedded bolt is connected with A word bar framework post.

The utility model is increased to the top mark height of described whole plate base-the 0.3m place, and described GIS raft foundation and two framework bases are united layout and formed described whole plate base.

The utility model by theoretical calculate and field practice after, the mode that adds deep foundation by the part is handled both load difference simultaneously, has solved the problem that framework and GIS Equipment Foundations are collided, and has reduced transformer station and has taken up an area of with basis side and measure, and has saved construction investment.

Description of drawings

Fig. 1 is existing conventional framework and GIS Equipment Foundations layout plan.

Fig. 2 is the layout plan of framework described in the utility model and GIS equipment associating raft foundation.

Fig. 3 is 220kV outlet described in the utility model profile at interval.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in detail: shown in Fig. 2,3, the utility model is that the whole plate base 1 top mark height of GIS is increased to-the 0.3m place, framework basis 2 forms whole plate with GIS raft foundation 3 and arranges, consider GIS equipment with truss bar load difference, framework base position buried depth is deepened, slightly exceed the raft plate simultaneously at the top, convenient basic pre-embedded bolt is connected with A word bar framework post 4.After the outlet tensioning equipment was in place, mass-type foundation had participated in resistance to plucking and the resistance to compression work of framework and has also born GIS equipment load.

The utility model provides a kind of new approaches, namely adopt underground foundation whole water (framework and GIS Equipment Foundations) rationally, structure base when solving land area and can't the expand problem of colliding, after adopting framework and GIS equipment associating raft foundation, resistance to compression, resistance to plucking, the resistance to capsizing of outlet structure have been strengthened, reduce the differential settlement of GIS Equipment Foundations, reduced the issuable risks of bad soil property such as the soil body loss of basic bottom, liquefaction.Raise embedded depth of foundation, saved basic material, reduce the foundation excavation face, reached the purpose that reduces transformer station's expropriation of land and reduce basic material.

Claims

1. the associating raft type basis of outdoor framework and GIS equipment in the transformer station, it is characterized in that it is framework basis and GIS raft foundation to be formed whole plate base arrange, the top on framework basis slightly exceeds the top of GIS raft foundation, and basic pre-embedded bolt is connected with A word bar framework post.

2. the associating raft type basis of outdoor framework and GIS equipment in the transformer station according to claim 1, it is characterized in that it is that top mark height with described whole plate base is increased to-the 0.3m place, described GIS raft foundation and two framework bases are united and are arranged and form described whole plate base.