Trenchless gap dragging construction method
A construction method and non-excavation technology, which is used in pipeline laying and maintenance, pipe/pipe joint/pipe fittings, mechanical equipment, etc., can solve the complex preparation process of grouting liquid, complicated construction process of grouting liquid, and poor sealing performance of pipe body ends. and other problems, to achieve the effect of good sealing, not easy to solidify, and reduce tension
Active Publication Date: 2015-11-04
甘肃先锋管道制造有限公司
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Problems solved by technology
[0004] The above-mentioned scheme solves the problem of difficulty in pulling the pipe body during the existing trenchless construction to a certain extent, but this scheme still exists: the preparation process of the grouting liquid is complicated, the lubricity of the grouting liquid is low, it is easy to solidify, and the construction process of the grouting liquid is difficult. Complicated, the pipe needs to be pulled with a large force, and the end of the pipe is poorly sealed
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[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0019] The grouting fluid formula for non-excavation gap dragging construction includes the following components in parts by weight: 20-22 parts of dry mud, 10-12 parts of plant slurry with high lubricity, and 68-70 parts of water , the lubricity of the grouting liquid is greatly improved due to the addition of high-lubricity plant slurry. The plant slurry is formed by crushing any one or more of plants including green onions, fungus, okra, yam, cactus and taro into a paste. As a preferred version, the plant slurry here adopts the pulverized scallion paste of scallions. The dry mud is sifted mud powder and the size of the sieve mesh is not more than 10mm, and the large particles in the dry mud are removed, so that the grouting fluid has a higher lubricity.
[0020] The grouting liquid is prepared according to the formula of the grou...
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The invention belongs to the technical field of pavement of trenchless pipe networks and particularly relates to grouting liquid for trenchless construction and a formula, a preparation method and a construction method thereof. The technical problems of the grouting liquid are solved, such as low lubrication degree and large preparation difficulty and the like. The grouting liquid formula for trenchless clearance dragging construction is characterized by comprising the following components in parts by weight: 20-22 parts of dry mud, 10-12 parts of plant size with high lubricity and 68-70 parts of water. Compared with the prior art, the grouting liquid for trenchless construction and the formula, the preparation method and the construction method thereof have the advantages that the design is reasonable, the preparation process is simple, the lubrication degree of the grouting liquid is high, the friction coefficient of a pipe body and a traction hole can be decreased to ensure easy traction of the pipe body, the pipe body is unlikely to break in the traction process, the necessary traction tension is reduced, the sealing property of the end part of the pipe body is good, no subsequent cleaning is needed, the construction process is simple and the grouting liquid is unlikely to solidify.
Description
technical field [0001] The invention belongs to the technical field of non-excavation pipe network laying, and in particular relates to a non-excavation gap drag construction method. Background technique [0002] Trenchless construction technology was introduced into China in the late 1980s. At that time, the imported trenchless directional drilling rigs were used for pulling pipes with relatively small diameters of Φ80, Φ110, and Φ160. Since it was introduced into our country, trenchless construction technology has been adopted by various industries in our country, for example, telecommunications industry, water supply industry, electric power industry, drainage, sewage industry and so on. With the continuation of reform and opening up, my country's urbanization is accelerating and the basic facilities of urbanization are in place and perfect. It is becoming more and more difficult to lay a pipe network underground in the city. Only trenchless construction is the only optio...
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IPC IPC(8): F16L1/032
Inventor 黄楠伟陈仲维陈泽科
Owner 甘肃先锋管道制造有限公司