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A Construction Method for Grooving Unit Groove Section of "h" Type Anti-scouring Wall

A technology of trough construction and unit trough, which is applied in artificial islands, water conservancy projects, infrastructure engineering, etc., can solve the problems of prone to grout leakage, complex structure, complex construction technology, etc., and achieve the effect of avoiding grout leakage

Active Publication Date: 2016-01-20
GEZHOUBA GROUP FOUND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the "H" type anti-scouring wall unit groove section is composed of two wings and a web, with many corners and complex structure, the traditional percussion drilling machine is used for groove construction, and the two wings and the web must be carried out at the same time, and the construction process is complicated, especially in The corners are particularly prone to slurry leakage and collapse accidents. It is difficult to form grooves and the cycle of groove formation is long, which directly affects the construction progress of the anti-scourer wall

Method used

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  • A Construction Method for Grooving Unit Groove Section of "h" Type Anti-scouring Wall
  • A Construction Method for Grooving Unit Groove Section of "h" Type Anti-scouring Wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] like figure 1 , 2 As shown in , a construction method for forming grooves of "H" type anti-scouring wall unit groove section, "H" type anti-scouring wall unit groove section is composed of web 1 and wing plates 2 located at both ends of web 1, including the following steps :

[0020] Construction preparation:

[0021] Including guide wall construction, hydropower system formation, mud preparation, grab bucket placement, etc.;

[0022] Use the grab bucket to dig and construct the "H" type anti-scouring wall unit groove section. With this step, compared with the impact drilling machine, the groove can be formed quickly, and the occurrence of slurry leakage and collapse accidents can be avoided.

Embodiment 2

[0024] On the basis of embodiment 1, in the preferred scheme, the grab construction is carried out according to the following steps:

[0025] 1. The grab first grabs and digs the web main hole 11 located in the middle of the web 1; through this step, the web main hole 11 is constructed first to avoid interference with other subsequent holes.

[0026] 2. Grab the first hole 21 of the wing plate and the second hole 22 of the wing plate located at both ends of the wing plate 2 by the grab bucket, and then grab the third hole 23 of the wing plate located in the middle of the wing plate 2 by the grab bucket; The collapsed hole of the plate 2 reduces the rolling of the peripheral platform of the wing plate 2.

[0027] 3. The grab grabs and digs the web auxiliary holes 12 and 12' located at both ends of the web 1; here the web auxiliary holes 12 and 12' are in an isolated position, and the grab is located on the outer edge of the wing 2, which is also convenient for construction , I...

Embodiment 3

[0030] On the basis of Example 2, such as figure 2 As shown in , first use a grab bucket to grab and dig the main hole 11 to the end hole of the web;

[0031] Then two grabs are used to grab and dig the wing plate 2 to the end hole at the same time, and the grabs are arranged on both sides of the wing wall, one for each, walking parallel to the axis of the wing wall. When catching and digging, first grasp the main hole on both sides of the wing wall, namely the first hole 21 of the wing plate and the third hole 23 of the wing plate, and then grab the secondary hole in the middle of the wing wall, which is the second hole 22 of the wing plate.

[0032] Finally, a grab bucket is used to grab and dig the auxiliary holes 12 and 12' of the web to the end hole to complete the task of grabbing and digging the web.

[0033] Using two grab buckets to grab and dig the wing 2 at the same time further speeds up the construction progress of the groove section of the "H" type anti-scourin...

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Abstract

A sort of? The construction method of "H" type anti-scouring wall unit groove section, the "H" type anti-scouring wall unit groove section is composed of a web and wing plates located at both ends of the web, including the following steps: grabbing and digging with a grab bucket to construct "H" "Type anti-scouring wall unit groove section. Preferably, the following steps are also included: 1. The grab first grabs and digs the main hole of the web located in the middle of the web; The bucket grabs and digs the third hole of the wing plate located in the middle of the wing plate; 3. The grab bucket grabs and digs the auxiliary holes of the web plate located at both ends of the web plate; through the above steps, the construction task of forming the groove section of the “H” type anti-scouring wall unit is completed. The invention adopts the method of grabbing and digging construction, which can overcome the deficiency of the percussion drilling machine in the construction of the "H" type anti-scouring wall unit groove section, and can quickly form the groove. Further, by adopting the method of construction in a specific order, the accidents of grout leakage and collapse can be avoided 。

Description

technical field [0001] The invention relates to the field of anti-scouring wall unit groove sections, in particular to an "H" type anti-scouring wall unit groove section groove-forming construction method which adopts the "pure grasping method" construction of grab buckets. Background technique [0002] The "H" type anti-scour wall is an underground continuous wall installed at the base of the gate dam or at the front end of the bottom apron and the end of the apron at the downstream to prevent the water flow from scouring. It is composed of several "H"-shaped unit groove sections, each "H"-shaped groove section is composed of two wing plates and a web in the middle, and is "H"-shaped on the plane, with good integrity, impact resistance and Amoy ability and other characteristics. [0003] Since the "H" type anti-scouring wall unit groove section is composed of two wings and a web, with many corners and complex structure, the traditional percussion drilling machine is used f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/09
Inventor 周昌茂张玉莉童耀李小勇杨溢
Owner GEZHOUBA GROUP FOUND ENG
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