Construction technology of ultra-deep underground diaphragm wall
An underground diaphragm wall and construction technology technology, which is applied in artificial islands, sheet pile walls, water conservancy projects, etc., can solve the problems of cracking and damage of underground diaphragm walls and large settlement depth of underground diaphragm walls, so as to increase the contact area, increase the Effect of contact area
Pending Publication Date: 2022-05-17
中冶华南建设工程有限公司
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Problems solved by technology
The depth of subsidence of the underground diaphragm wall is large, so the underground diaphragm wall may be cracked and damaged
Method used
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[0053] The following is attached Figure 1-13 The application is described in further detail.
[0054] The embodiment of the application discloses a construction technique of an ultra-deep underground diaphragm wall.
[0055] refer to figure 1 , a construction technique for an ultra-deep underground diaphragm wall, comprising the following steps:
[0056] S1: Construction of guide wall 3: Excavate guide channel 1 after measuring and setting out according to the design requirements, and lay steel mesh on the two inner walls of guide channel 1 and the notch part of the ground near guide channel 1, and the steel mesh is in an "L" shape. Afterwards, the formwork is set along the reinforcement mesh and poured to form the guide wall 3 .
[0057] After the construction of the guide wall 3 is completed, a support column 4 is placed between the two inner side walls of the guide wall 3, and the support column 4 is generally made of wood. The ends of the support columns 4 are tightly...
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The invention relates to a construction process of an ultra-deep underground diaphragm wall, which comprises the following steps: guide wall construction: excavating a guide groove after surveying and lofting according to design requirements, and pouring and forming the guide wall on the inner wall of the guide groove; grooving construction is conducted, specifically, grooving is excavated in groove sections, and slurry is poured into a formed groove during grooving excavation; grooving perpendicularity detection and desilting and paddle replacement are carried out; steel bars are woven to form the steel reinforcement cage, at least two grouting pipes are fixedly installed in the steel reinforcement cage, the steel reinforcement cage is hoisted into the excavated groove, and one end of each grouting pipe is inserted into the bottom of the groove; groove forming and concrete pouring are conducted, specifically, concrete is poured into the groove and the guide groove through a guide pipe method, a high-pressure grouting machine is adopted to inject concrete into a grouting pipe, and the concrete is poured into the bottom of the groove through the grouting pipe; and concrete is poured into the guide grooves, specifically, the concrete is poured into the guide grooves, and therefore the main wall is formed. The underground diaphragm wall has the effect that the situation that the underground diaphragm wall cracks and is damaged due to sedimentation is reduced.
Description
technical field [0001] The present application relates to the field of building construction, in particular to a construction technique of an ultra-deep underground diaphragm wall. Background technique [0002] The underground diaphragm wall is a groove forming machine that adopts a grab type or a rotary type on the ground for foundation engineering. Along the periphery of the excavation project, a long and narrow deep groove is excavated under the condition of a mud retaining wall to form a unit groove section. , to pour concrete into the unit tank section. The unit wall sections are connected to each other by specific joints to form an underground continuous wall. The underground diaphragm wall generally plays the role of water interception, seepage prevention, load bearing and water retaining. [0003] As the underground diaphragm wall is buried deeper, the weight of the underground diaphragm wall is greater, thereby increasing the pressure on the bottom of the deep gro...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E02D5/18E02D29/16E02D31/02E02D15/02E02D17/08
CPCE02D5/18E02D5/182E02D29/16E02D31/02E02D15/02E02D17/08E02D17/083E02D2250/003E02D2300/0029E02D2300/0071Y02E10/20
Inventor 于润泽栾新强鲁军军宫成祥郭彦彤
Owner 中冶华南建设工程有限公司