Construction method of small span foundation trench with filling concrete sliding masses on two sides and support structure thereof
A construction method and support structure technology, which is applied in the direction of basic structure engineering, underwater structures, excavation, etc., can solve the problems of increased excavation and pouring volume, reduced production efficiency, and impact on structure construction, so as to save earth excavation, The effect of improving production efficiency and shortening the construction period
Active Publication Date: 2011-04-20
CHINA 19TH METALLURGICAL CORP
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Problems solved by technology
According to the requirements of building codes, there is no need to set anchors and other fixings between the filled concrete slide and the slope, so dangerous situations such as landslides or landslides are likely to occur between the filled concrete slide and the slope; In the construction of small-span foundation trenches with filled concrete slides on both sides of the trench, the methods used are basically the construction of the structures in the foundation trench first, followed by the foundation trench and other side slope support, and the sequential construction of filling concrete or filling concrete and Integrated construction of slope support such as foundation trench
No matter which method is used, when the foundation trench is excavated, the construction space necessary for the construction of the slope protection body such as the foundation trench must be dug out, thereby increasing unnecessary excavation and subsequent backfilling or filling concrete slides The amount of pouring will reduce the production efficiency and greatly increase the construction production cost; at the same time, during the construction of the structure, because the excavation slope has not been poured with concrete, there is a risk of landslide or collapse, which will cause great damage to the construction of the structure. impact, and it is very prone to safety accidents
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[0020] Such as figure 1 Shown is a relationship diagram of the foundation trench 4, the filling concrete 1 and the excavation involved in the construction method of the small-span foundation trench with filled concrete slides on both sides provided by the present invention. In the prior art, the construction of the title base trench 4 is to construct the structures in the base trench 4 first, such as when the base trench 4 is used as a cable trench, construct structures such as cable supports first, and when the base trench 4 is used as a sewage corridor, first Construction of sewage equipment and other structures, and then set up the foundation trench formwork 5, pour the foundation trench 4, and pour the filling concrete 1 after passing the qualification. With this process step, when excavating the foundation trench 4 earthwork, it must be figure 1 The normal excavation line 8 digs out the operation space for erecting the foundation trench formwork 5, which is generally 500m...
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The invention discloses a construction method of a small span foundation trench with filling concrete sliding masses on two sides and further discloses a support structure used for the construction method of the small span foundation trench with the filling concrete sliding masses on the two sides. The construction method comprises the followings steps: firstly carrying out earth excavation on the foundation trench, then reserving the casting position of the foundation trench, erecting filling concrete templates on two outer sides of the foundation trench, simultaneously embedding shoring pre-embedded plates in the positions of the filling concrete templates and casting filling concrete; mounting shorting parts after solidification of the filling concrete, and leading the two ends of the shoring parts to be respectively supported on the pre-embedded plates on the two ends of the foundation trench and further firmly connected with the pre-embedded plates; then detaching the filling concrete templates, binding steel bars of the foundation trench according to a diagram, supporting structure templates of the foundation trench and casting the concrete of the foundation trench; and finally detaching the shorting parts, the templates of the foundation trench and a support thereof. The support structure at least consists of one shoring part and two pre-embedded parts, wherein the two pre-embedded parts are respectively positioned on the filling concrete sliding masse on the two sides of the foundation trench, one plane of each pre-embedded part is supported on the filling concretemass, and the other plane of each pre-embedded part is connected with the shoring part.
Description
technical field [0001] The invention relates to a construction method of a small-span foundation trench, in particular to a construction method of a small-span foundation trench with filled concrete sliding bodies on both sides. [0002] The invention also relates to a supporting structure used in the construction method of the small-span foundation groove with filled concrete sliding bodies on both sides. Background technique [0003] In the construction of industrial and civil buildings, it is often encountered in the construction of small-span underground structures with foundation trenches such as cable tunnels and waste water corridors, and the two sides of the foundation trenches are generally provided with filled concrete slides. According to the requirements of building codes, there is no need to set anchors and other fixings between the filled concrete slide and the slope, so dangerous situations such as landslides or landslides are likely to occur between the fille...
Claims
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IPC IPC(8): E02D29/05E02D17/02E02D17/04E02D17/20
Inventor 黄成友
Owner CHINA 19TH METALLURGICAL CORP