Tunnel engineering spray-filming waterproofing construction device and construction method

Abstract

The invention discloses a tunnel engineering spray-filming waterproofing construction device and a construction method. The construction device comprises a box body, a base plate, a lifting mechanism, a storing box, a rotating mechanism and spray-filming waterproofing mechanisms. The lifting mechanism and the storing box are both located in the box body, the lifting mechanism comprises a first lifting assembly, a second lifting assembly and a guide mechanism, and an interface assembly is arranged on the top surface of the storing box; a transfer pump is arranged on the interface assembly, the rotating mechanism is located above an end cover, and the spray-filming waterproofing mechanisms are evenly distributed on the side surface of a supporting plate; and the supporting plate is connected to the top surface of a rotary disc through a main support and an auxiliary support, the main support and the auxiliary support are connected through a connecting rod, and a pipeline channel is formed in the supporting plate. The construction method of the tunnel engineering spray-filming waterproofing construction device comprises the steps of tunnel surveying and setting out, tunnel wall surface and arc roof cleaning, drainage layer construction, spray-filming construction and spray-filming waterproofing repairing. According to the construction method, the steps are simple, spray-filming waterproofing construction of tunnels with different sizes can be met, spraying of spray-filming waterproofing materials is even, and the waterproofing effect is good.

Description

technical field [0001] The invention relates to a spray film waterproof construction device and a construction method for tunnel engineering. Background technique [0002] Water leakage in tunnels and underground engineering is a prominent quality problem in current underground engineering construction. At present, the waterproofing of composite linings in tunnels and underground projects mostly uses waterproofing membranes, but they often fail. The reason is that in addition to poor management, construction technology and material properties are also important factors. The use of membrane waterproofing has the following defects: the material itself cannot be closely adhered to the concrete, and it is difficult to meet the requirements of water blocking. The impact during installation, the back conflicts, etc. are easy to puncture the waterproof membrane, resulting in water leakage; the waterproof surface is required to be smooth and tidy. If there are large cavities and un...

AI Technical Summary

Problems solved by technology

The use of membrane waterproofing has the following defects: the material itself cannot be closely adhered to the concrete, and it is difficult to meet the requirements of water blocking. The impact during installation, the back conflicts, etc. are easy to puncture the waterproof membrane, resulting in water leakage; the waterproof surface is required to be smooth and tidy. If there are large cavities and unevenness in the wall concrete, the secondary lining extruded waterproof membrane will be stretched, which will easily break and damage the waterproof membrane; the joint between the membranes is the weak link of the waterproof membrane, which will affect the construction High precision requirements, a little carelessness will cause the entire waterproof system to fail

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