Channel joint leakage prevention construction method

A construction method and channel technology, applied in water conservancy projects, marine engineering, irrigation pipelines, etc., can solve the problems of channel damage to the channel body, the concrete is not compacted, and the frost heave resistance is poor, and the effect of solving joint cracks is achieved.

Inactive Publication Date: 2004-11-17
NORTHWEST A & F UNIV
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Problems solved by technology

[0004] 1. The concrete poured for the second time is not dense and the contact surface of the original concrete often produces cracks and leakage;
[0005] 2. The plasticity of cement mortar is small, and the frost heave resistance is poor. After the construction is completed, after a

Method used

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Embodiment Construction

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and the embodiments given by the inventor. It should be noted that this embodiment is only a preferred example, and the present invention is not limited to these embodiments.

[0016] Referring to the accompanying drawings, according to the technical scheme of the present invention, for laying prefabricated or cast-in-place concrete block 4 for the channel, the width of the seam is 3.0cm~8.0cm, and the depth of the seam is more than 5.0cm; 1.0cm of mixed gravel forms the gravel layer 1, and the gravel layer is 3.0cm away from the surface of the concrete block; then, the ordinary cement mortar layer 2 is used to fill the joint sand layer until the surface of the two concrete blocks is flat; add the cement mortar layer Finally, spray M1500 waterproofing agent 0.22kg / m on the joint surface of the concrete block and on both sides within the range of 3.0cm to 5.0cm ...

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Abstract

The invention discloses a constructing method for a kind of water-tight channel seam: the invention preforms a seam with width of 3.0cm-8.0cm when lays concrete preformed block or pouring concrete in field, the depth of the sea is not less than 5.0cm, the invention lays a layer of sands (particle radius 0.1-1.0 cm) on the bottom of the seam, then the concrete sand pulp is poured into the seam and flat with the concrete block with pulp pouring machine or manually, sprays M1500 water repellent compound on the surface of seam and in range of 3.0-5.0 at two sides of the seam.

Description

technical field [0001] The invention belongs to a construction method for a canal joint, and relates to a method for a canal anti-seepage joint. Background technique [0002] With the development of social economy, people pay more attention to water resources and environment, especially China is already a water-poor country, saving water is an important task that the country cares about, and agricultural water is the largest water user in my country, accounting for about 72%. Among them, the loss of agricultural water delivery is the largest, and the amount of water leaked from water delivery channels accounts for about 50%. Therefore, the anti-seepage technology of channel joints has become a hot spot in the water conservancy industry in recent years. [0003] At present, the joints of agricultural water delivery channels are mostly filled with cement mortar. This method has the following disadvantages: [0004] 1. The concrete poured for the second time is not dense and th...

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Application Information

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IPC IPC(8): E02B3/16E02B13/00
Inventor 张慧莉汪有科娄宗科田堪良刘顺发阎宁霞
Owner NORTHWEST A & F UNIV
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