阅读说明：本技术 一种用于岩溶区摩擦型灌注桩成桩质量检测方法 (One kind being used for karst region friction-type bored pile piling quality determining method ) 是由 雷文 王其合 郑晓慧 王文庆 于 2019-09-10 设计创作，主要内容包括：本发明涉及岩溶区摩擦型灌注桩技术领域,尤其涉及一种用于岩溶区摩擦型灌注桩成桩质量检测方法,其特征在于：在所述灌注桩的钢筋笼的中心位置预留竖向的检测孔道,在所述检测孔道内置放可升降并旋转的质量检测装置,使其沿所述检测孔道运动,以对所述灌注桩的成桩质量进行横向检测；所述检测孔道在检测完成后,通过灌注加强体封闭。本发明的优点是：结构简单,浇筑灌注桩时检测孔道始终处于中空状态,该检测孔道既能作为浇筑混凝土时的散热通道,减少裂缝的产生；还能为质量检测装置提供运行通道,便于检测出边界体在溶洞内的延展度,从而判断出灌注桩的成桩质量；质量检测装置位于灌注桩内的深度可调。(The present invention relates to karst region friction-type bored concrete pile technology fields, more particularly to it is a kind of for karst region friction-type bored pile piling quality determining method, it is characterized by: reserving vertical detection duct in the center of the steel reinforcement cage of the bored concrete pile, in the quality detection device putting liftable built in the detection duct and rotating, it moves it along the detection duct, lateral detection is carried out with the pile quality to the bored concrete pile；The detection duct upon completion of the assays, passes through perfusion intensive aspect closing.The invention has the advantages that structure is simple, duct is detected when pouring bored concrete pile and is in hollow state always, heat dissipation channel when which can be as casting concrete reduces the generation in crack；Operation channel can also be provided for quality detection device, convenient for detecting extensibility of the boundary body in solution cavity, to judge the pile quality of bored concrete pile；The depth that quality detection device is located in bored concrete pile is adjustable.)

1. one kind is used for karst region friction-type bored pile piling quality determining method, transverse mass detection is carried out to bored concrete pile, It is characterized in that: reserving vertical detection duct in the center of the steel reinforcement cage of the bored concrete pile, built in the detection duct The quality detection device putting liftable and rotating, moves it along the detection duct, with the pile quality to the bored concrete pile Carry out lateral detection；The detection duct upon completion of the assays, passes through perfusion intensive aspect closing.

2. according to claim 1 a kind of for karst region friction-type bored pile piling quality determining method, feature exists In: the detection duct is realized by reserving hollow region in the center of the steel reinforcement cage.

3. according to claim 2 a kind of for karst region friction-type bored pile piling quality determining method, feature exists In: in the center of the steel reinforcement cage, centre bore template, the centre bore template surrounding and bottom closing, the center are set Hole template area defined is as the detection duct.

4. according to claim 1 a kind of for karst region friction-type bored pile piling quality determining method, feature exists In: the heat dissipation channel when detection duct is as casting concrete.

Technical field

The present invention relates to karst region friction-type bored concrete pile technology fields, more particularly to a kind of karst region friction-type that is used for be perfused Stake pile quality detection method.

Background technique

Beading karst region friction-type bored concrete pile laterally expands the friction of concrete offer mainly by boundary body in solution cavity Bearing capacity of the power as pile foundation, the depth whether expansion depth of the boundary body in solution cavity meets design requirement will directly affect stake The performance degree and pile foundation safety of base bearing capacity, therefore the expansion degree to pile foundation boundary body is needed to detect.

Because solution cavity is distributed mainly on pile foundation surrounding, therefore the detection to boundary body degree of stretch, predominantly transverse direction detect.At present Accommodating space without detection device in common beading karst region friction-type bored concrete pile leads to not laterally detect boundary body Expansion depth, so that the pile quality of pile foundation can not be measured out.

Summary of the invention

The purpose of the present invention is provide a kind of for karst region friction-type bored concrete pile according to above-mentioned the deficiencies in the prior art Pile quality detection method detects duct in the intracorporal position in boundary by reasonable Arrangement, it is ensured that detection hole when pouring bored concrete pile Road is in hollow state always, and heat dissipation channel when which can be as casting concrete reduces the generation in crack；Also Operation channel can be provided, for quality detection device convenient for detecting the quality of whole stake.

The object of the invention realization is completed by following technical scheme:

One kind being used for karst region friction-type bored pile piling quality determining method, carries out transverse mass detection to bored concrete pile, special Sign is: reserving vertical detection duct in the center of the steel reinforcement cage of the bored concrete pile, puts built in the detection duct Liftable and rotate quality detection device, move it along the detection duct, with the pile quality to the bored concrete pile into Row laterally detection；The detection duct upon completion of the assays, passes through perfusion intensive aspect closing.

The detection duct is realized by reserving hollow region in the center of the steel reinforcement cage.

In the center of the steel reinforcement cage, centre bore template, the centre bore template surrounding and bottom closing, institute are set Centre bore template area defined is stated as the detection duct.

Heat dissipation channel when the detection duct is as casting concrete.

The invention has the advantages that structure is simple, duct is detected when pouring bored concrete pile and is in hollow state always, the detection hole Heat dissipation channel when road can be as casting concrete, reduces the generation in crack；It is logical that operation can also be provided for quality detection device Road, convenient for detecting extensibility of the boundary body in solution cavity, to judge the pile quality of bored concrete pile；Quality detection device position It is adjustable in the depth in bored concrete pile.

Detailed description of the invention

Fig. 1 is the structural diagram of the present invention；

Fig. 2 is the construction way figure for applying the present invention to karst region.

Specific embodiment

Feature of present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with attached drawing, so as to In the understanding of technical staff of the same trade:

As shown in Figs. 1-2,1-12 is marked to respectively indicate in figure are as follows: boundary body 1, steel reinforcement cage 2, detection duct 3, preformed groove 4, coagulation Soil 5, Piles in Karst Region datum hole 6, bottom plate 7, side plate 8, solution cavity 9, traction lifting device 10, quality detection device 11, intensive aspect 12.