CN201649110U

CN201649110U - Drainage structure for wall at hydropower station shore-type plant upstream

Info

Publication number: CN201649110U
Application number: CN2010201579837U
Authority: CN
Inventors: 陈建林; 郑芝芬; 江亚丽
Original assignee: Hydrochina East China Engineering Corp
Current assignee: Hydrochina East China Engineering Corp
Priority date: 2010-04-09
Filing date: 2010-04-09
Publication date: 2010-11-24
Anticipated expiration: 2020-04-09

Abstract

The utility model relates to a drainage structure for the wall at a hydropower station shore-type plant upstream. The drainage structure aims to effectively reduce the underground water level at the upstream, prevent underground water from permeating into a wall structure at the upstream, and ensure the safety of the wall body structure and good operating environment of a power station. The drainage structure adopts the technical scheme as follows: a group of drainage holes are formed on one surface of a rock adjacent to a bottom concrete structure; outlets of the drainage holes are connected with a drainage blind-ended tube network; a drainage blind-ended tube at the bottom of the drainage blind-ended tube network is connected with an in-plant drainage system which is pre-embedded in the bottom concrete structure; waterproof paint is painted on the contact surface of an upper concrete structure and rock ballasts; the drainage blind-ended tube network is arranged on an outer wall; and the drainage blind-ended tube at the bottom of the drainage blind-ended tube network is connected with an in-plant drainage system which is pre-embedded in the upper concrete structure, The drainage structure is suitable for the drainage of underground water at the upstream of the hydropower station plant.

Description

The discharge structure of upstream wall of shore type hydropower station workshop

Technical field

The utility model relates to a kind of discharge structure of upstream wall of shore type hydropower station workshop.Be applicable to the phreatic discharge in powerhouse of hydropower station upstream.

Background technology

Hydropower station workshop is arranged in bank, riverbank, dam downstream, is a kind of factory building pattern that often adopts in the power station.Generally speaking, factory building is arranged at the foot of the hill, near the riverbank, as shown in Figure 1.Because factory building upstream side high-land, groundwater table is corresponding higher, has built factory building upstream, part bank underground water and has infiltrated in the factory by body of wall, and wall body structure is concrete calcareously separates out thereupon, not only influence the running environment of factory building, and reduced concrete intensity of structure and durability to a certain extent.

Summary of the invention

The technical problems to be solved in the utility model is: propose a kind of discharge structure of upstream wall of shore type hydropower station workshop, effectively reduce the upstream groundwater table, prevent that underground water from infiltrating the head bay wall structure, guarantees the good running environment of safety and power station of wall body structure.

The technical scheme that the utility model adopted is: a kind of discharge structure of power house along river bank head bay wall, have the head bay wall of factory building, and the bottom concrete structure of this wall is filled with rock ballast near rock between the top concrete structure of this wall and the rock; It is characterized in that: near the one side of bottom concrete structure one group of drain hole is set at rock, the outlet of drain hole connects draining blind pipe net, and the draining blind pipe of draining blind pipe net bottom layer is connected with the interior pre-buried internal drainage system of factory of bottom concrete structure; The contact surface of top concrete structure and rock ballast scribbles water-repellent paint, and arranges draining blind pipe net on wall face, and the draining blind pipe of draining blind pipe net bottom layer is connected with the interior pre-buried internal drainage system of factory of top concrete structure.

Internal drainage system of described factory comprises branch drain that is connected with the draining blind pipe net port of export and the leader drain that is connected with branch drain, and collecting well or gutter are connected in leader drain and the factory.

Described branch drain gos deep into blind pipe 10mm.

Described draining blind pipe net is made of interconnective some horizontal drainage blind pipes and some vertical drainage blind pipes.

The beneficial effects of the utility model are: at the geological condition of factory building head bay wall position, bottom and top two cover drainage systems are set respectively, make the underground water of upstream enter gutter or collecting well by this discharge structure smoothly, effectively reduced the upstream groundwater table, prevent that underground water infiltration factory building body of wall is inner and cause the calcareous of its structural concrete to be separated out thereupon, thereby the intensity and the durability of wall body structure have been guaranteed, for the power station provides good running environment.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Fig. 2 is the structural representation (facade) of bottom discharge system among the utility model embodiment.

Fig. 3 is the A-A sectional view (level) of Fig. 2.

Fig. 4 is the B-B sectional view (facade) of Fig. 2.

Fig. 5 is the structure for amplifying schematic diagram of Fig. 3 at the M place.

Fig. 6 is the structural representation (facade) of the utility model embodiment middle and upper part drainage system.

Fig. 7 is the C-C sectional view (level) of Fig. 6.

Fig. 8 is the D-D sectional view (facade) of Fig. 6.

Fig. 9 is the structure for amplifying schematic diagram of Fig. 7 at the N place.

The specific embodiment

As shown in Figure 1, the bottom concrete structure 1-1 of factory building head bay wall 1 is filled with rock ballast 3 near rock 2 between the top concrete structure 1-2 of this wall and the rock 2.Corresponding with it bottom discharge system and the top drainage system of being provided with.

The structure of bottom discharge system such as Fig. 2, shown in Figure 3.Near the one side of bottom concrete structure 1-1 one group of drain hole 4, hole depth 5.0m, pitch-row 2.0m are set at rock 2.The outlet of drain hole connects draining blind pipe net 5, and branch drain 6 pre-buried in the draining blind pipe of draining blind pipe net bottom layer and the bottom concrete structure 1-1 links to each other, branch diameter 50mm, and pipe is apart from 2.0m.Branch drain links to each other by leader drain 7 pre-buried in threeway and the bottom concrete structure.Leader drain diameter 100mm, apart from wall body outer wall face 200mm, the leader drain other end connects collecting well (or gutter).The structure of draining blind pipe net 5 as shown in Figure 4, it is made of interconnective horizontal drainage blind pipe 8 and vertical drainage blind pipe 9, and horizontal blind pipe and vertical blind pipe all adopt tin plate 10 and cement nail 11 to be fixed on the rock 2.Wherein, the cross dimensions of vertical drainage blind pipe is 50 * 140mm, and pipe is apart from 2.0m; The wide 100mm of tin plate, spacing is 500mm.The syndeton of branch drain 6 and blind pipe net 5 as shown in Figure 5, the water inlet of branch drain gos deep into blind pipe 10mm, adopts the advantage of this structure to be: make things convenient for the water in the blind pipe to enter branch drain and avoid it to infiltrate in concrete structure; Prevent that foreign material or member (as native stone, tin plate etc.) from blocking the water inlet of branch drain 6, causes underground water can not enter internal drainage system of factory.

The structure of top drainage system such as Fig. 6, shown in Figure 7.In order to prevent that better the water in the blind pipe from infiltrating in the concrete structure, scribble water-repellent paint 12 at the contact surface of top concrete structure 1-2 and rock ballast 3.Be furnished with draining blind pipe net 5 on the wall face of this concrete structure, the draining blind pipe of draining blind pipe net bottom layer is connected with the interior pre-buried branch drain 6 of top concrete structure 1-2, and branch drain 6 usefulness threeways are connected with leader drain 7.Wherein, branch drain diameter 50mm, spacing 2.0m is apart from base surface 500mm; Leader drain diameter 100mm, apart from wall body outer wall face 200mm, the leader drain other end connects collecting well (or gutter).The structure of draining blind pipe net 5 as shown in Figure 8, it is made of interconnective horizontal drainage blind pipe 8 and vertical drainage blind pipe 9, and horizontal blind pipe and vertical blind pipe all adopt tin plate 10 and cement nail 11 to be fixed on the exterior wall surface of top concrete structure 1-2.Wherein, the cross dimensions of vertical drainage blind pipe is 50 * 140mm, and pipe is apart from 2.0m; The wide 100mm of tin plate, spacing is 500mm.Equally, consider to make things convenient for underground water to enter branch drain 6 smoothly that avoid the branch drain mouth by shutoff, branch drain also gos deep into blind pipe 10mm, its syndeton as shown in Figure 9.

Claims

1. the discharge structure of a upstream wall of shore type hydropower station workshop has the head bay wall (1) of factory building, and the bottom concrete structure (1-1) of this wall is filled with rock ballast (3) near rock (2) between the top concrete structure (1-2) of this wall and the rock (2); It is characterized in that: near the one side of bottom concrete structure (1-1) one group of drain hole (4) is set at rock (2), the outlet of drain hole connects draining blind pipe net (5), and the draining blind pipe of draining blind pipe net bottom layer is connected with the interior pre-buried internal drainage system of factory of bottom concrete structure (1-1); Top concrete structure (1-2) scribbles water-repellent paint (12) with the contact surface of rock ballast (3), and arrange draining blind pipe net (5) on wall face, the draining blind pipe of draining blind pipe net bottom layer is connected with the interior pre-buried internal drainage system of factory of top concrete structure (1-2).

2. the discharge structure of upstream wall of shore type hydropower station workshop according to claim 1, it is characterized in that: internal drainage system of described factory comprises branch drain (6) that is connected with draining blind pipe net (5) port of export and the leader drain (7) that is connected with branch drain, and collecting well or gutter are connected in leader drain and the factory.

3. the discharge structure of upstream wall of shore type hydropower station workshop according to claim 2, it is characterized in that: described branch drain (6) gos deep into blind pipe 10mm.

4. the discharge structure of upstream wall of shore type hydropower station workshop according to claim 1 is characterized in that: described draining blind pipe net (5) is made of interconnective some horizontal drainage blind pipes (8) and some vertical drainage blind pipes (9).