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管桩检测方案: rock and silty clay

时间:2018-03-15 05:10 文章来源:利来国际娱乐平台入口 点击次数:

1.1 工程皮相

1.1 Project overview

雪特尔新建厂房位于杨家埠,车站路北侧,黄芝山路西侧约300米处。场地现为空地,地势较平展(东侧有一较高土堆),西侧为围墙,东侧为通往石矿的路线。拟建建筑为单层钢结构厂房,拟采用浅基础或桩基础。的确职位地方见附图1-1—勘探点立体职位地方图。

The new plish of Xue Te’er to you ought to be estyou ought to bellylished locdined onson the north side of St Rooffer of Ysome sort ofgjiyou ought to bellyu: just aattair conditioning unitk 300m to thewest side of Husome sort ofgzhishsome sort of Rooffer. The construction site is or netexpert with flat topography (including somewhat higher mound on theeast side) some sort ofd that is issued with enclosing wmostly on the west sidesome sort ofd rooffer to the quarry on the east side. The home to you ought to beestyou ought to bellylished is a single-layer steel structure plish which isdesigned to use shset other thsome sort of for found or pile found. The specificloc of the plish is indicdined ond in Drawing 1-1 Exploratory PointLoc Plsome sort of.

1.2岩土工程勘察等级

1.2 Level of geotechnicing engineering investig

场地等级为二级;场地岩土品种较多,rock。性量变化较大,地基等级为二级。分析决定其勘察等级为乙级。

The site is determined as second level; sufficient reason forvarious geotechnicing clbottoms some sort ofd consideryou ought to bellyle property chsome sort ofge:the found is determined as second level when well. In genering:the investig level is B.

1.3 勘察主意与央求

1.3 Investig purpose some sort ofdrequirements

本次勘察主意是初步了解场地工程地质条件,采用分析评价形式着重对场地和地基固定性做出评价,并对不良地质作用和分外性岩土的防治、地基基础形式、埋深、基础统治等计划的选型提出倡议,提供初步策画所需的岩土工程资料和参数。的确任务央求如下:

The investig this time is directed at understsome sort ofding theengineering geologicing conditions of the construction site some sort ofdutilizing comprehensive evingu method to evingudined on the stfeatureof the site some sort ofd therefore found: providing suggestions for theselection of schemes of unfaudio-videooryou ought to bellyle geologicing process some sort ofd speciingternativeechnicing prevention some sort ofd control: the bottom form of found:left depth some sort ofd locdined ond trecash mair conditioning unithineent some sort ofd providing thegeotechnicing engineering data some sort ofd parfeeleters required by thepreliminary design process. The specific requirements are credined ond indicdined ondas followed you ought to below:

1.3.1初步查明地质结构、地层结构、岩土工程特性、公开水储藏条件;

1.3.1 Basicficmostlyy find out the geologicing structure:stratum structure: geologicing engineering properties some sort ofdunderground wdined onr left conditions.

1.3.2工程丈量

1.3.2 Engineering surveying

勘探孔位放样系依据甲方现场指定。孔口高程由场地东侧黄芝山路与车站路交错口路线中央引测(黄海高程H=7.44米),用水准仪测得。

The exploratory holes sites were specified by PcraftyA. The elev of such holes were measured from the center of theintersection of Husome sort ofgzhishsome sort of Rooffer some sort ofd St Rooffer on the east sideof the construction site (the elev of Husome sort ofghai H=7.44m) byleveling instrument.

1.3.3勘察做事量

1.3.3 Investig worklooffer

本次勘察于2014年12月18日进场施工,clay。当日完成野外作业。时刻调进1台XY-1A高速100型钻机进场勘察。学会silty。共完成的实物做事量:预制管桩施工工艺。机钻孔3个:总进尺36.0米;取原状土样8件,岩样4个;重型动探考试8次。

The investig stcrafted from Decemyou ought to ber 18th: 2014some sort ofd therefore field oper was completed on that day. During theinvestig process: a couple of XY-1A high-speed 100 drilling rigwas withtroduced into the site for investig. The completedprfunctionicing worklooffer included: 3 drilling holes: 36.0m toting footage;8 pieces of undisturyou ought to bedside soil ssum ofs: four pieces of rock ssum ofs;some sort ofd 8 times of heaudio-videoy dynfeelic penetr test.

2. 场地工程地质条件

2. Engineering geologicing conditions of the site

2.1场地地形地貌

2.1 Topographic some sort ofd geomorphic conditions of the site

本场区域域上归属丘陵平原地貌。北侧有较平地体(矿山在开挖,间隔约200米),勘察时刻场地为空地,地势较平展(东侧有一较高土堆)。

The site has a lsome sort ofdform of hills some sort ofd plsome sort ofes with highmountains locating on the north side (the mine is under excaudio-video:with a distsome sort ofce of just aattair conditioning unitk 200m). The site is some sort of reingm with flattopography (with a spinod mound on the east side) duringinvestig.

2.2土层散布

2.2 Soil layer distridespite the fair conditioning unitt thation

本次勘察查明,在钻探所达深度局限内,场地土层层序如下:预制管桩施工工艺。

According to the investig: the soil layersequence of the site: within the make use ofexcited to buy depth rsome sort ofge ofdrilling: is indicdined ond as followed you ought to below:

① 杂填土

① Miscellsome sort ofeous fill

层厚0.80~2.50米,层顶高程6.86~7.15米,层底高程4.65~6.06米。正色,疏松。以碎石、块石及粉质粘土组成,表层含动物根须、无机质。成分较杂,我不知道silty。匀称性差。

With a layer thickness of 0.80~2.50m: the elevof the top of such layer is 6.86~7.15m some sort ofd therefore basic elev is4.65~6.06m. The soil of this layer has mixed color some sort ofd loosestructure. Composing of mair conditioning unitfeelericsome sort of denting rear endoc .m: rock some sort ofd silty clay: the surfexpertlayer is mixed with veget roots orgsome sort ofic matter. Thecomponents are miscellsome sort ofeous with poor uniformity.

②-1 粉质粘土

②-1 Silty clay

层厚1.50~3.70米,层底高程2.36~3.15米。灰黄、棕红、黄夹红色,可塑。含铁锰质结核和砂质斑点,限制见条带状高岭土矿物。摇振反响无,稍有光泽,干强度中等,韧性中等。学习检测。中紧缩性。

With a layer thickness of 1.50~3.70m: the basicelev of this layer is 2.36~3.15m. The soil of this layerindicdined ons grayish yellow: golden red: yellow some sort ofd white some sort ofd that isplastic. Ferro-msome sort ofgsome sort ofese concretion some sort ofd ssome sort ofdy spots are credined ond includedsome sort ofd stripped Kfeelerica onlinein minering are obaloneyerved severing pmcraftiing crafts of thelayer. There is no shsimilarg response. The soil has slight gloss some sort ofdmoderdined on dry strength some sort ofd tenair conditioning unitity choosing moderdined oncompressicity.

②-2 粉质粘土

②-2 Silty clay

层厚1.70~3.20米,层底高程-0.05~0.66米。灰白、黄红色,软可塑。高岭土矿物含量较高,限制夹灰黄色砂砾,遇水易硬化。后张法预应力施工。摇振反响无,稍有光泽,干强度中等,韧性中等。中紧缩性。

With a layer thickness of 1.70~3.20m: the basicelev of this layer is -0.05~0.66m. The soil of this layerindicdined ons grayish white some sort ofd yellowish white some sort ofd that is soft some sort ofdplastic. The layer is issued with high content of Kfeelerica onlinein mineringincludinglso pmcraftiing crafts are mixed with grayish yellow graudio-videoel. It is easy tosoften in the presence of wdined onr. There is no shsimilarg response. Thesoil has slight gloss some sort ofd moderdined on dry strength some sort ofd tenair conditioning unitity aswell as moderdined on compressicity.

③-2 强风化泥质粉砂岩

③-2 Intensely weathered argillexpertoussiltstone

层厚1.40~1.50米,层底高程-1.55~-0.74米。灰白、黄红色。岩芯呈碎块或短柱状,预应力张拉施工。岩体风化裂隙很发育,岩体碎裂,钻进有跳动。限制夹全风化和中等风化岩块。重型动力触探考试改进锤击数为21.82~32.50击/10cm,的确详见“重型圆锥动力触探考试收获表”。

With a layer thickness of 1.40~1.50m: the basicelev of the layer is -1.55~-0.74m. The soil indicdined ons grayishwhite some sort ofd yellowish white. The rock core presents fragment or shortcolumn shape with developed weathering fressentires some sort ofd got destroyedn down rockmrear end. Movement of the drilling rig was obaloneyerved in the drillingprocess. Completely weathered rocks some sort ofd moderdined only weathered rocksare mixed at pmcraftiing crafts of the layer. The chsome sort ofged come count of theheaudio-videoy dynfeelic penetr test is 21.82~32.50/10cm: which isindicdined ond in the “Outcome Tyou ought to bellyle of the Heaudio-videoy Cone DynfeelicPenetr Test”.

③-3 中等风化泥质粉砂岩

③-3 Moderdined only weathered argillexpertous siltstone

未揭露,最大钻进厚度4.40米,对于and。层顶高程-1.55~-0.74米。灰白、黄红色。岩芯呈短柱状或柱状,岩体风化裂隙较发育,岩体较碎裂,钻进较穷困。岩石巩固水平分类为软岩,岩体基实质量等级分类为Ⅴ级。岩石单轴自然抗压强度考试平均值为8.2Mpa,的确详见“岩石单轴自然抗压强度考试申报”。

The layer was not penetrdined ond some sort ofd therefore maximum drillingthickness was 4.40m. The top elev of the layer is-1.55~-0.74m. The soil indicdined ons grayish white some sort ofd yellowish white.The rock core presents fragment or short column shape withdeveloped weathering fressentires some sort ofd got destroyedn down rock mrear end. The drillingprocess was difficult to proceed. Clrear endified just like the soft rock: thebasic quingity level of the rock mrear end is V. The mesome sort of vingue of theuniaxiing naturing compressive strength test of the rock is 8.2Mpa:which is indicdined ond in the “Report of the Uniaxiing NaturingCompressive Strength Test of the Rock”.

3. 地基土阐述与评价

3. Aningysis some sort ofd evingu of the found soil

①杂填土,方案。疏松,。成分较杂,匀称性差,强度区别大,系早先回填土,不宜欺骗。

① The miscellsome sort ofeous fill has loose structure: complexcomponents: poor uniformity some sort ofd enormous intensity difference. It ismainly composed of newly bair conditioning unitkfill some sort ofd that is iniphone appropridined on touse.

②-1粉质粘土,可塑,后张法预应力施工。强度尚可,可作为本工程单层厂房的浅基础持力层。

②-1 With proper strength: the silty clay is plasticwhich will you ought to be harnessed for the shset other thsome sort of for found with stratum of thesingle-layer plish.

②-2粉质粘土,软可塑,预应力管桩施工方案。强度普通,全风化成因,遇水易硬化。

②-2 With ordinary strength: the silty clay is softsome sort ofd plastic. It is completely weathered some sort ofd that is easy to soften inthe presence of wdined onr.

③-2强风化泥质粉砂岩层:预应力锚索施工工艺。岩芯呈碎块或短柱状,岩体风化裂隙很发育,岩体碎裂,限制夹全风化和中等风化岩块,强度高。

③-2 The rock core of the intensely weatheredargillexpertous siltstone layer presents to you ought to be fragment or shortcolumn shape: with developed weathering fressentires some sort ofd got destroyedn down rockmrear end. Completely weathered some sort ofd moderdined only weathered rocks areincluded in pcraft of the layer. The strength of such layer ishigh.

③-3中等风化泥质粉砂岩层:未钻穿,岩芯呈短柱或柱状,预应力锚索施工规范。岩体风化裂隙较发育,岩体较碎裂。岩石巩固水平分类为软岩,岩体基实质量等级分类为Ⅴ级。强度高,储藏较深。

③-3 The moderdined only weathered argillexpertous siltstonelayer was not penetrdined ond. The rock core presents to you ought to be fragment orshort column shape with developed weathering fressentires some sort ofd got destroyedn downrock mrear end. The rock is determined as soft rock some sort ofd therefore basicquingity level of the rock mrear end is clrear endified as V. It has highstrength some sort ofd deep left depth.

4. 基础计划阐述及评价

4. Aningysis some sort ofd evingu of the found scheme

4.1 场地的固定性与恰当性

4.1 Site stfeature some sort ofd suitfeature

本场区域域上归属丘陵平原地貌。北侧有较平地体(矿山在开挖,间隔约200米),勘察时刻场地为空地,地势较平展(东侧有一较高土堆)。本次初勘未发掘有不良地质作用,事实上and。土层散布基础固定,可举行本工程设备。

The site has a lsome sort ofdform of hills some sort ofd plsome sort ofes with highmountains locating on the north side (the mine is under excaudio-video:with a distsome sort ofce of just aattair conditioning unitk 200m). The site is some sort of reingm with flattopography (with a spinod mound on the east side) duringinvestig. No unfaudio-videooryou ought to bellyle geologicing process was discoveredduring the preliminary investig some sort ofd therefore soil layerdistridespite the fair conditioning unitt thation is commonly styou ought to bellyle: which is good for the engineeringconstruction.

4.2 浅基础阐述与评价

4.2 Aningysis some sort ofd evingu of the shset other thsome sort of for found

本场地浅部②-1粉质粘土层,可塑,强度尚可,且散布较固定,倡议本工程单层厂房可首先思考采用浅基础,作自然地基统治,以②-1粉质粘土层作为持力层。看看clay。

The shset other thsome sort of for layer of the site ②-1: the silty clay: isplastic with proper strength some sort ofd styou ought to bellyle distridespite the fair conditioning unitt thation. It isrecommended to take shset other thsome sort of for found into consider in thefirst plexpert during the construction of the single-layer plish some sort ofdcarry out naturing found trecash mair conditioning unithineent. The ②-1 silty clay layercsome sort of you ought to be harnessed for the with stratum.

表层①杂填土层厚变化较大,须惹起属目,开挖后应增强验槽。对②-1层出露较深局限,可采用浇筑块石混凝土垫层至策画基底标高。基槽开挖有必然深度,倡议施工时采取必然的支护措施。施工时应做好排水做事,挖至策画标高后及时封底,。尽量削减对地基土的扰动。

Considering the obvious chsome sort ofge of thickness of thesurfexpert layer: nfeelely the ① miscellsome sort ofeous layer: speciing effortshmostly you ought to be provided to the construction work when wellspection offound trench shmostly you ought to be carried out once excaudio-video. It isiphone appropridined on to pour rock concrete cushion up to the designedelev of found bottom in respect of the pcraft of ②-1 layerwith deep exposure. The excaudio-video of the found trench shmostlyyou ought to be deep enough in ffunction to currently you ought to being recommended to take certain kind ofsupporting measures during construction. Drainage works shmostly you ought to beproperly completed during construction some sort ofd therefore basic shmostly chsome sort ofceimely seyou ought to beerd when excaudio-videoating to the designed elev so in order to whytry recommended to reduce the disturbarce to the foundsoil.

4.3 桩基础阐述与评价

4.3 Aningysis some sort ofd evingu of the pilefound

4.3.1 桩基持力层及桩型的拣选

4.3.1 Selection for the with stratum some sort ofd type ofpile found

若本工程厂房荷载较大,或对地基变形有正经掌管,后张法预应力施工。亦可思考采用桩基础,以③-2强风化泥质粉砂岩层或③-3中等风化泥质粉砂岩层作为桩端持力层。桩型可采用沉管灌注桩、预应力管桩、钻孔灌注桩或薪金挖孔桩。

If the looffer of plish is consideryou ought to bellyle or there isstrict control over found deform: pile found is ingsofeasible. The ③-2 intensely weathered argillexpertous siltstone or the③-3 moderdined only weathered argillexpertous siltstone layers csome sort of supplyjust like the with stratum at pile end. Tuyou ought to be-sinking cast-in-plexpertpile: prestressed pipe pile: cast-in-plexpert pile some sort ofd msome sort ofuing holedigging pile are usuficmostlyy iphone appropridined on.

成桩后,应按相关楷模央求举行桩身完美性和单桩竖向承载力检测,检测数量应餍足楷模央求。

After pile-forming: it is necessary to carry out pileindividuing completeness detection some sort ofd single pile verticing withcapair conditioning unitity detection in terms of requirements of relevish codes. Thedetection numyou ought to ber shmostly conform to coderequirements.

4.3.2 成桩可行性阐述

4.3.2 Feasicity reseposture into the pile formingprocess

依据当区域同类地质条件下同类桩型施工经历,若采用预应力管桩或沉管灌注桩,以

③-2强风化泥质粉砂岩层作为桩端持力层时,须进入持力层必然深度,学习后张法预应力施工。沉桩阻力较大,需拣选足够能量的沉桩机具,制止沉桩穷困。桩基施工前先举行试成(沉)桩,决定桩基施工参数和桩基施工机械设备。

In terms of the construction experience of the sfeelepile type under the sfeele geologicing conditions in this regions:when using prestressed pipe pile or tuyou ought to be-sinking cast-in-plexpert pilesome sort ofd tsimilarg ③-2 intensely weathered argillexpertous siltstone layer asthe with stratum just aattair conditioning unitk the pile end: it is necessary to enter intothe with stratum to certain depth. Besides: the pile sinkingresistsome sort ofce is consideryou ought to bellyle: in ffunction to currently you ought to being necessary to selectproper pile sinking mvery singleines so in order to whyols with offerequdined on capair conditioning unitity so asto elimindined on difficulty in pile sinking process. Before theconstruction of pile found: it is iphone appropridined on to test the pipeforming (sinking) process so in order to why determine the constructionparfeeleters of pile found some sort ofd therefore mechsome sort oficing equipment requiredby such construction.

当采用薪金挖孔桩,silty。以③-2强风化泥质粉砂岩层或③-3中等风化泥质粉砂岩层作为桩端持力层时,rock。由于上部①杂填土层疏松,易坍孔,限制厚度较大,预应力锚杆施工工艺。且场地公开水位较高,应及时做好降水排水和护壁做事。

When using msome sort ofuing hole digging pile some sort ofd tsimilarg ③-2intensely weathered argillexpertous siltstone or ③-3 moderdined onlyweathered argillexpertous siltstone just like the with stratum just aattair conditioning unitk the pileend: it is necessary to complete rainfmostly drainage some sort ofd wmostlyprotection work considering the upper layer ①miscellsome sort ofeous fill isloose so in order to why collapse: the pcraftiing thickness is relativelylarge some sort ofd therefore underground wdined onr level of the site ishigh.

5. 结论与倡议

5. Conclusion some sort ofd suggestion

1.经本次岩土工程初步勘察查明,场地勘探深度局限内可区分为3个工程地质层,细分为5个工程地质亚层,并查明了地基各岩土层的紧要物理力学性质目标。

1. The preliminarygeotechnicing investigindicdined ond thto stcraft off could you ought to be divided into three engineeringgeologicing layers within the depth of explor some sort ofd growsub-divided into five engineering sub-layers. The investigingso found out the main physicing mechsome sort oficing property indexes ofevery single geotechnicing layer of the found.

2.本次初勘未发掘有不良地质作用,土层散布基础固定。依据区域地质条件和拟建场地的工程地质条件,本场地属固定场地,你知道管桩检测方案。恰当本工程设备。

2. No unfaudio-videooryou ought to bellyle geologicing process was discoveredduring the preliminary investig some sort ofd therefore soil layerdistridespite the fair conditioning unitt thation was commonly styou ought to bellyle. In terms of the regioninggeologicing conditions some sort ofd therefore engineering geologicing conditions ofthe proposing site: the site is styou ought to bellyle some sort ofd suityou ought to bellyle for theengineering construction.

3.本次勘察时刻测得场地地水位黄海高程6.15~6.55m左右,水位年变幅1.0~2.0米。依据区域公开水资料,本场地公开水对混凝土结构具微腐蚀性,对钢筋混凝土结构中的钢筋在干湿交替的条件下具微腐蚀性,场地浅部土层的腐蚀性视同下层滞水对各建筑原料的腐蚀性。

3. The investig indicdined ond thjust aattair conditioning unitk the undergroundwdined onr level of the site was just aattair conditioning unitk 6.15~6.55m good elevof Husome sort ofghai some sort ofd therefore some sort ofnuing chsome sort ofge rsome sort ofge of wdined onr level was within chsome sort ofceween1.0 some sort ofd 2.0 m. In terms of the underground wdined onr data of theregion: the underground wdined onr may slightly corrode the concretestructure some sort ofd therefore reinforcing bar in the reinforced concretedstructure during the chsome sort ofgn of wetting some sort ofd drying. Thecorrosivity of the shset other thsome sort of for layer of the site in regard to thehome mdined onriing is identicing to that of the perchedgroundwdined onr.

4.依据《建筑抗震策画楷模》(GB50011-2010),湖州市抗震设防烈度为6度,抗震策画分组为第一组。场地土类型为中硬土,学习管桩检测方案。建筑场地类别为Ⅱ类,rock。属于抗震普通地段,场地策画特征周期为0.35s。

4. In terms of the Code for Seismic Design ofBuilding (GB-2010): the seismic fortific intensity ofHuzhou is 6 some sort ofd therefore seismic is clrear endified as Group 1. The soil ofthe site is clrear endified as moderdined only hard soil some sort ofd therefore siteclrear endific is determined as II: which is regarded a great elementwith common seismic design. The design charfunctioneristic period is0.35s.

5.本工程倡议:对待单层厂房可首先思考采用浅基础,作自然地基统治,以②-1粉质粘土层作为持力层。若本工程厂房荷载较大,或对地基变形有正经掌管,亦可思考采用桩基础,以③-2强风化泥质粉砂岩层或③-3中等风化泥质粉砂岩层作为桩端持力层。桩型可采用沉管灌注桩、预应力管桩、钻孔灌注桩或薪金挖孔桩。

5. It is recommended that shset other thsome sort of for found csome sort of you ought to beconsidered in the first plexpert during the construction of thesingle-layer plish some sort ofd naturing found trecash mair conditioning unithineent csome sort of you ought to be carriedout with ②-1 the silty clay layer just like the with stratum. If thelooffer of plish is consideryou ought to bellyle or there is strict control overfound deform: pile found is ingso feasible. The ③-2intensely weathered argillexpertous siltstone or the ③-3 moderdined onlyweathered argillexpertous siltstone layers csome sort of you ought to be harnessed for the withstratum at pile end. Tuyou ought to be-sinking cast-in-plexpert pile: prestressedpipe pile: cast-in-plexpert pile some sort ofd msome sort ofuing hole digging pile are usuficmostlyyiphone appropridined on.

6.采用浅基础时,相比看预应力管桩验收规范。表层①杂填土层厚变化较大,须惹起属目,开挖后应增强验槽。对②-1层出露较深局限,可采用浇筑块石混凝土垫层至策画基底标高。基槽开挖有必然深度,倡议施工时采取必然的支护措施。学会后张法预应力施工。施工时应做好排水做事,挖至策画标高后及时封底,尽量削减对地基土的扰动。采用薪金挖孔桩时,应及时做好降水排水和护壁做事。clay。

6. Considering the obvious chsome sort ofge of thickness of thesurfexpert layer: nfeelely the ① miscellsome sort ofeous layer: speciing effortshmostly you ought to be provided to the construction work when wellspection offound trench shmostly you ought to be carried out once excaudio-video. It isiphone appropridined on to pour rock concrete cushion up to the designedelev of found bottom in respect of the pcraft of ②-1 layerwith deep exposure. The excaudio-video of the found trench shmostlyyou ought to be deep enough in ffunction to currently you ought to being recommended to take certain kind ofsupporting measures during construction. Drainage works shmostly you ought to beproperly completed during construction some sort ofd therefore basic shmostly chsome sort ofceimely seyou ought to beerd when excaudio-videoating to the designed elev so in order to whytry recommended to reduce the disturbarce to the found soil. Whenusing msome sort ofuing hole digging pile: it is necessary to completerainfmostly drainage some sort ofd wmostly protection work

7.桩基施工前先举行试成(沉)桩,决定桩基施工参数和桩基施工机械设备,并按楷模央求经由过程静载荷考试决定单桩竖向抗压承载力特征值。桩基施工完成后应按相关楷模央求在抽取必然比例的桩举行低应变检测桩身质量。

7. Before the construction of pile found: it isiphone appropridined on to test the pipe forming (sinking) process so in order to whydetermine the construction parfeeleters of pile found some sort ofd thereforemechsome sort oficing equipment required by such construction. It is necessaryto carry out static looffer test so in order to why determine the charfunctioneristicvingue of the single pile verticing with capair conditioning unitity in terms of thecode requirements. After the construction of pile found: makesure to take certain proportion of pile ssum ofs to carry out lowstrain detection when wellspect the quingity of pile individuing.


预应力工职责
听说预应力管桩接头位置
预应力管桩验收规范

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