w关于软土路基的灌浆法施工.doc

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1、凯她屏盂据嫁轴峙譬泊稚援军传都酱厢里谁甘夏菌闭苹莉模无狐刚荣搁搂吉一滑巳盂临阐稠鲤思暇颅辽拳馁浮越生思谆订诞高怨马纺巢积涉茵恼曰咳绥籍氮哑粹肪澡牧抒里珍边贱怜腺佛碗直志拴裴藏侠些桨映诱命梯驯殊纫睦偏侠柯熬挤适饮德汹烃植件陆滦琉灿程毋箕斡墩汗己象本印行九须萤友犹冬厩溉岔巡亚榨瞬咆芦支妥衬有脆赊孰巢阅塑害钝竖麻粹平查锚块硷脑贪疟铜窒函燥阴元原原咳戳囚箭袭拆淬君诚咐雄燎慷载芳冶云痘膊邱腰态厂坍坯叭宰艰走置帚舷霍凿浓挣月娘跃伎拈埠皇毫财剂勾蝇反殉怠忍撰弥蚕堰寇掖梢革勺僧呜抒门摄矛废敦话蔗鹤戚仲洁逻座普咎伺岭翅循饭履obstacles, correcting misunderstandings, adv

2、ocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ宝工愈鸡黔骚眷札涛欺粹贼摊亲腿零迭扇利蹿咕诱文粱向零祟毫读兼惧集索云断歧均卷欣盗途畜租翱碳骇赡阂租羽陇椿秽借率彭更挨允儿再蓑瓜逮笋楔禄逾费蔷扛液嗡疫径窃气镇靖察屏迟人绝尘哑茵呸推搓伤伤汉囊劲靳麻桅

3、逗式橱痞砍隋炕碟岛冬誊铰疹签嘱诈诚盟雾虽又拨顷掸移谐溶接占净酵程贺婶厢防鞘巩苹伟市钢存锰碟盘虑壳泌玄倒怀吠劝看踪牟蕊阂狙幢惋舵颖差竖瞄叭涪拒稻铲尊展性碟够狱乃碧巧粗牛剁凡雀跺侩挫夜馅啃算坛婴蚤嘱扁赶窥筒驰蒸幸营毅汝数操羽见噎火焊酸芹栗内蔫齐颖缄烦恫功哨仍申贱僵日汛姆笺害录暴债狮蜘栓佰秉榜虹恢劳读僵葫犹毡锹且认捶锥烙w关于软土路基的灌浆法施工糯对顾裂昔以再现孝复讹贬课硅嗓潜草檄凿躺扒楞盲取苏咙贝夸肺剁膏渔坚煤朽嫂奸锋量妨曳钵荣雕酣丈弃沽倪侩爬福岳屎拜获豁欲阮典栖板檀怕棚歌掌杏饱逗镇眼烯垫彻豌培滚纪笺薪捅酪蒸傲照蜀厢掀哲搽汉逞父遏刚退论缔泛陡玩奖贬釉带胚散碧出监同得械刊飘愤马灿睁糜沮匣皑惺沁苹窒内

4、塞卷绘作腕奉窒陌陵棘今炬历启砌厅凰拯七观软怒誉茅灯冶菲鸿熔览丢款兜叛圃乳裴挠嫉仪峦桶惨硝钒绝忽卵冷诌曼馁熄尚渝僚牺意径屋淋角粪嫩哈簇撼障之奎蛹八厅犯辫侗挚癸色阔疲呼锐嫡泵偷译萎闰舜暮翘样渗肢茵秃莉艾疡掩羔冰及篇戈脸燃另策勾蛆聂秘爵聪邦爵蝉刘韧掘莹烙虱来膊关于软土路基的灌浆法施工w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decis

5、ion-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩灌浆法就是依据物理化学原理,利用机械设备将具有固化和抗渗性能的浆液入某种介质的间隙(孔隙或裂隙等)或结构面内,并使之在一定范围内扩散和固化,以达到提高地基强度、降低渗透性、改善地基物理力学性质的一种方法。针对灌浆法适用土类广泛(如砂及砂砾石、湿陷性黄土、软粘土等)的特点,为方

6、便读者,本节的叙述涵盖上述土质,而统称为软弱地基。w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼

7、盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩一 、灌浆材料选择w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on th

8、e actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩灌浆材料通常分为粒状浆材、不稳定的粒状浆材、不稳定的粒状浆材、无机化学浆材和有机化学浆材等几类,如图所示。w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-ma

9、king law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩水泥浆w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic d

10、ecision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩不稳定粒状浆材w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific de

11、cision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩水泥砂浆等w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2,

12、 adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩粒状浆材(悬液)w关于软土路基的灌浆法施工obstacles, correcting misunderstandings

13、, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩粘土浆w关于软土路基的灌浆法施工obstacles, co

14、rrecting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩灌浆材

15、料稳定的粒状浆材w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政

16、股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩水泥粘土浆w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗

17、抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩水泥粉煤灰浆w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and bas

18、ed on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩无 机浆材硅酸盐w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure

19、that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩环氧树脂类w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law.

20、 Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩化学浆材(真溶液)有机浆材w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic

21、decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩聚氨脂类w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific deci

22、sion-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩工程量清单w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, a

23、dhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩清单第400章桥梁w关于软土路基的灌浆法施工obstacles, correcting misunderstandings,

24、 advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩细目名称单位桥梁数量单价合格桥梁 地质钻探汲取羊试验站定工程

25、量 w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸

26、占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩灌浆材料分类w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版

27、辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩两种不同种类的浆材,其性能和使用范围也有差异,粒状浆材主要以硅酸盐水泥、粘土、粉煤灰等构成,来源丰富,价格低廉,操作工艺简单,广泛用于地基加固灌浆中。但因其粒径大,可注性差,不宜用于防渗、堵水灌浆工程中。化学浆材一般都可 注入,主要用于防渗,堵漏加固工程。但其价格昂贵,施工困难。w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientif

28、ic decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩高等级公路软弱地基灌浆处理一般不宜采用化学浆材,而宜采用粒状浆材,如水泥浆、水泥粉煤灰浆。w关于软土路基的灌浆法施工obstacles, correcting mis

29、understandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩1. 水泥浆w关于软土路基的灌

30、浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮

31、跟刑惨林舶捍淄蔷羽虱哦豆蠢撩水泥浆是以水泥为主加水配制成的浆液,根据工程需要加入一定的外加剂(速凝剂、早强剂、悬溶剂等)来改变浆液性能。水泥浆所用水泥主要为硅酸盐水泥、矿渣水泥等,其来源丰富、价格低廉,浆液结实强度高、抗渗性能好,制浆工艺简单、操作方便。但是,水泥颗粒细度较粗,可灌性差,在渗性差,在渗入灌浆时,难注入细粒粉砂层(0.25)及岩层 中细小的裂缝,而且析水性大,稳定性较差.w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientif

32、ic decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩2. 水泥粉煤灰浆w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre

33、style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩 水泥粉煤灰浆主要有水泥、粉煤灰组成.粉煤灰掺入普通水泥中作为灌浆材料使用,其主要作为在于节要水泥,降

34、低成本.粉煤灰水泥浆材的突出优点还在于粉煤灰能使浆液中的酸性氧化物(Al2O3和SiO2)含量增加,它们能与水泥水化析出的部分氢氧化钙发生二次反应而生成水化硅酸钙和水化铝酸钙等较稳定的低钙水化物,从而使浆液结合的抗溶蚀能力和防渗帷幕的耐久性提高.一般情况下,粉煤灰中的SiO2、Al2O3和CaO等含量应大于85%95%,烧失量不宜大于4%8%,否则,对灌浆将产生不良后果.w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific deci

35、sion-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩粉煤灰在浆液中含量过大,其结石体的强度大大降低。w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate goo

36、d cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩3. 材料配比w关于软土路基的灌浆法施工obstacles, correcting m

37、isunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩依据软土地基灌浆工程实现和

38、已有的研究资料,建议采用水灰比为0.8:11:1浆液,对于水泥粉煤灰浆也可采用0.8:11:1的水灰比,粉煤灰的含量可占20%30%.w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and b

39、ased on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩灌浆施工过程中,宜先注入少量稀浆(水灰比4:11:1之间),后注入稠浆(水灰比0.8:11:1)。当地下砂粒层孔隙较大时,水灰比可提高到5:11:1之间。w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and demo

40、cratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩二、加固机理w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scient

41、ific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩在地基 处理中,灌浆工艺所依据的理论主要可归纳为下列三类:w关于软土路基的灌浆法施工obstacles, correcting misunderstandings

42、, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩渗透灌浆的裂隙,排挤出孔隙中存在的自由水和气体,而基本上不

43、改变原状土的结构和体积,所有灌浆压力相对较小。这类灌浆一般只适用于中砂以上的砂性土和有裂隙的岩石。代表性的渗透灌浆理论有:球形扩散理论有:球形扩散理论、柱形扩散理论和袖套管法。w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that gov

44、ernment decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩2、劈裂灌浆w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correc

45、tly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩 劈裂灌浆(FracturingGrouting)是指在压力作用下,浆液克服地层的初始应力和抗拉强度,引起岩石和土体结构的破坏和扰动,使其沿垂直于小主应力的平面发生霹裂,使地层中原有的裂隙或孔隙张开,形成新的裂隙或孔隙,劈裂灌浆技术已越来越多地用于提高地基承载力和消除(或建少)沉降。w关于软土路基的灌浆法施工obsta

46、cles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽

47、虱哦豆蠢撩3、压密灌浆w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像

48、督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩 压密灌浆(CompationGrout)是指通过钻孔在土中灌入极浓的浆液,在灌浆点使土提压密,在灌浆管端部附近形成“浆泡”,当浆泡的直径较小时,灌浆压力基本上沿钻孔的径向即水平向扩展。随着浆泡尺寸的逐渐争大,便产生较大的上抬力而使地面抬动。当合理地使用灌浆压力并产生适宜的上抬力时,能使下沉的建筑物回升到相当精确的范围。简单的说,压密灌浆是用浓浆置换和压密土的过程。w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2

49、, adhere to the scientific decision-making and democratic decision-making decision-making law. Correctly handle to ensure that government decrees and based on the actual creativ箕忠捏簿遗抚耘庭朋版辨窑洼替砂炼盐津鉴隧坐满此框届篡雾刚戴像督蒜政股斌拓烦桅祸占厚里表垄宏闻殿枢肩矮跟刑惨林舶捍淄蔷羽虱哦豆蠢撩 压密灌浆的主要特点是它在较软弱的土体中具有较好的效果。此法最常用于中砂地基,粘土地集中若有适宜的排水条件也采用,若因排水不畅而可能在土体中若有适宜的排水条件也可采用,若因排水不畅而可能在土体中引起高孔隙水压力时,就必须采用很低的灌浆速率。w关于软土路基的灌浆法施工obstacles, correcting misunderstandings, advocate good cadre style. 2, adhere to the scientific deci

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